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mailing list for the glibc project.
[RFC 4/6] ARC: Initial port to glibc
- From: Vineet Gupta <Vineet dot Gupta1 at synopsys dot com>
- To: "libc-alpha @ sourceware . org" <libc-alpha at sourceware dot org>
- Cc: <linux-snps-arc at lists dot infradead dot org>, <Cupertino dot Miranda at synopsys dot com>, "Vineet Gupta" <Vineet dot Gupta1 at synopsys dot com>
- Date: Tue, 27 Jun 2017 11:00:52 +0300
- Subject: [RFC 4/6] ARC: Initial port to glibc
- Authentication-results: sourceware.org; auth=none
- References: <1498550454-3560-1-git-send-email-vgupta@synopsys.com>
The starting point for the code was Nios2 port, thanks to them.
Big shout out to Cupertino who spent many weeks / nights debugging
the initial bringup of init, sh, running into pesky issues in ARC port
of dynamic loader, syscall wrappers, binutils, gcc...
Signed-off-by: Cupertino Miranda <cmiranda@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
---
.gitignore | 1 +
elf/elf.h | 1 +
sysdeps/arc/Implies | 3 +
sysdeps/arc/Makefile | 26 +
sysdeps/arc/Subdirs | 1 +
sysdeps/arc/Versions | 13 +
sysdeps/arc/__longjmp.S | 50 +
sysdeps/arc/abort-instr.h | 2 +
sysdeps/arc/atomic-machine.h | 85 +
sysdeps/arc/backtrace.c | 1 +
sysdeps/arc/bits/endian.h | 12 +
sysdeps/arc/bits/fenv.h | 52 +
sysdeps/arc/bits/link.h | 52 +
sysdeps/arc/bits/setjmp.h | 33 +
sysdeps/arc/bsd-_setjmp.S | 1 +
sysdeps/arc/bsd-setjmp.S | 1 +
sysdeps/arc/configure | 17 +
sysdeps/arc/configure.ac | 13 +
sysdeps/arc/crti.S | 77 +
sysdeps/arc/crtn.S | 56 +
sysdeps/arc/dl-machine.h | 332 +++
sysdeps/arc/dl-runtime.c | 21 +
sysdeps/arc/dl-sysdep.h | 25 +
sysdeps/arc/dl-tls.h | 30 +
sysdeps/arc/dl-trampoline.S | 72 +
sysdeps/arc/gccframe.h | 21 +
sysdeps/arc/gmp-mparam.h | 23 +
sysdeps/arc/jmpbuf-offsets.h | 46 +
sysdeps/arc/jmpbuf-unwind.h | 47 +
sysdeps/arc/ldsodefs.h | 43 +
sysdeps/arc/libc-tls.c | 27 +
sysdeps/arc/libm-test-ulps | 394 ++++
sysdeps/arc/libm-test-ulps-name | 1 +
sysdeps/arc/machine-gmon.h | 30 +
sysdeps/arc/math-tests.h | 28 +
sysdeps/arc/math_private.h | 33 +
sysdeps/arc/memusage.h | 23 +
sysdeps/arc/nptl/Makefile | 22 +
sysdeps/arc/nptl/bits/pthreadtypes-arch.h | 70 +
sysdeps/arc/nptl/bits/semaphore.h | 32 +
sysdeps/arc/nptl/pthread_spin_lock.c | 24 +
sysdeps/arc/nptl/pthreaddef.h | 32 +
sysdeps/arc/nptl/tcb-offsets.sym | 11 +
sysdeps/arc/nptl/tls.h | 151 ++
sysdeps/arc/preconfigure | 6 +
sysdeps/arc/s_fma.c | 1 +
sysdeps/arc/s_fmaf.c | 1 +
sysdeps/arc/setjmp.S | 64 +
sysdeps/arc/sfp-machine.h | 51 +
sysdeps/arc/sotruss-lib.c | 51 +
sysdeps/arc/stackinfo.h | 33 +
sysdeps/arc/start.S | 81 +
sysdeps/arc/sysdep.h | 49 +
sysdeps/arc/tls-macros.h | 29 +
sysdeps/arc/tst-audit.h | 23 +
sysdeps/unix/sysv/linux/arc/Implies | 3 +
sysdeps/unix/sysv/linux/arc/Makefile | 9 +
sysdeps/unix/sysv/linux/arc/Versions | 6 +
sysdeps/unix/sysv/linux/arc/arch-fork.h | 35 +
sysdeps/unix/sysv/linux/arc/bits/mman.h | 42 +
sysdeps/unix/sysv/linux/arc/bits/sigaction.h | 78 +
sysdeps/unix/sysv/linux/arc/c++-types.data | 67 +
sysdeps/unix/sysv/linux/arc/cacheflush.c | 29 +
sysdeps/unix/sysv/linux/arc/clone.S | 97 +
sysdeps/unix/sysv/linux/arc/configure | 4 +
sysdeps/unix/sysv/linux/arc/configure.ac | 4 +
sysdeps/unix/sysv/linux/arc/kernel-features.h | 31 +
sysdeps/unix/sysv/linux/arc/ld.abilist | 12 +
sysdeps/unix/sysv/linux/arc/ldconfig.h | 24 +
.../unix/sysv/linux/arc/libBrokenLocale.abilist | 3 +
sysdeps/unix/sysv/linux/arc/libanl.abilist | 6 +
sysdeps/unix/sysv/linux/arc/libc.abilist | 2123 ++++++++++++++++++++
sysdeps/unix/sysv/linux/arc/libcrypt.abilist | 9 +
sysdeps/unix/sysv/linux/arc/libdl.abilist | 11 +
sysdeps/unix/sysv/linux/arc/libm.abilist | 370 ++++
sysdeps/unix/sysv/linux/arc/libnsl.abilist | 123 ++
sysdeps/unix/sysv/linux/arc/libpthread.abilist | 224 +++
sysdeps/unix/sysv/linux/arc/libresolv.abilist | 93 +
sysdeps/unix/sysv/linux/arc/librt.abilist | 37 +
sysdeps/unix/sysv/linux/arc/libthread_db.abilist | 42 +
sysdeps/unix/sysv/linux/arc/libutil.abilist | 8 +
sysdeps/unix/sysv/linux/arc/localplt.data | 35 +
sysdeps/unix/sysv/linux/arc/mmap_internal.h | 26 +
sysdeps/unix/sysv/linux/arc/profil-counter.h | 2 +
sysdeps/unix/sysv/linux/arc/pt-vfork.S | 1 +
sysdeps/unix/sysv/linux/arc/shlib-versions | 2 +
sysdeps/unix/sysv/linux/arc/sigaction.c | 64 +
sysdeps/unix/sysv/linux/arc/sigcontextinfo.h | 28 +
sysdeps/unix/sysv/linux/arc/sys/cachectl.h | 36 +
sysdeps/unix/sysv/linux/arc/sys/procfs.h | 123 ++
sysdeps/unix/sysv/linux/arc/sys/ucontext.h | 40 +
sysdeps/unix/sysv/linux/arc/sys/user.h | 32 +
sysdeps/unix/sysv/linux/arc/syscall.S | 33 +
sysdeps/unix/sysv/linux/arc/sysdep-cancel.h | 140 ++
sysdeps/unix/sysv/linux/arc/sysdep.c | 22 +
sysdeps/unix/sysv/linux/arc/sysdep.h | 253 +++
sysdeps/unix/sysv/linux/arc/ucontext_i.sym | 17 +
sysdeps/unix/sysv/linux/arc/vfork.S | 42 +
98 files changed, 6810 insertions(+)
create mode 100644 sysdeps/arc/Implies
create mode 100644 sysdeps/arc/Makefile
create mode 100644 sysdeps/arc/Subdirs
create mode 100644 sysdeps/arc/Versions
create mode 100644 sysdeps/arc/__longjmp.S
create mode 100644 sysdeps/arc/abort-instr.h
create mode 100644 sysdeps/arc/atomic-machine.h
create mode 100644 sysdeps/arc/backtrace.c
create mode 100644 sysdeps/arc/bits/endian.h
create mode 100644 sysdeps/arc/bits/fenv.h
create mode 100644 sysdeps/arc/bits/link.h
create mode 100644 sysdeps/arc/bits/setjmp.h
create mode 100644 sysdeps/arc/bsd-_setjmp.S
create mode 100644 sysdeps/arc/bsd-setjmp.S
create mode 100644 sysdeps/arc/configure
create mode 100644 sysdeps/arc/configure.ac
create mode 100644 sysdeps/arc/crti.S
create mode 100644 sysdeps/arc/crtn.S
create mode 100644 sysdeps/arc/dl-machine.h
create mode 100644 sysdeps/arc/dl-runtime.c
create mode 100644 sysdeps/arc/dl-sysdep.h
create mode 100644 sysdeps/arc/dl-tls.h
create mode 100644 sysdeps/arc/dl-trampoline.S
create mode 100644 sysdeps/arc/gccframe.h
create mode 100644 sysdeps/arc/gmp-mparam.h
create mode 100644 sysdeps/arc/jmpbuf-offsets.h
create mode 100644 sysdeps/arc/jmpbuf-unwind.h
create mode 100644 sysdeps/arc/ldsodefs.h
create mode 100644 sysdeps/arc/libc-tls.c
create mode 100644 sysdeps/arc/libm-test-ulps
create mode 100644 sysdeps/arc/libm-test-ulps-name
create mode 100644 sysdeps/arc/machine-gmon.h
create mode 100644 sysdeps/arc/math-tests.h
create mode 100644 sysdeps/arc/math_private.h
create mode 100644 sysdeps/arc/memusage.h
create mode 100644 sysdeps/arc/nptl/Makefile
create mode 100644 sysdeps/arc/nptl/bits/pthreadtypes-arch.h
create mode 100644 sysdeps/arc/nptl/bits/semaphore.h
create mode 100644 sysdeps/arc/nptl/pthread_spin_lock.c
create mode 100644 sysdeps/arc/nptl/pthreaddef.h
create mode 100644 sysdeps/arc/nptl/tcb-offsets.sym
create mode 100644 sysdeps/arc/nptl/tls.h
create mode 100644 sysdeps/arc/preconfigure
create mode 100644 sysdeps/arc/s_fma.c
create mode 100644 sysdeps/arc/s_fmaf.c
create mode 100644 sysdeps/arc/setjmp.S
create mode 100644 sysdeps/arc/sfp-machine.h
create mode 100644 sysdeps/arc/sotruss-lib.c
create mode 100644 sysdeps/arc/stackinfo.h
create mode 100644 sysdeps/arc/start.S
create mode 100644 sysdeps/arc/sysdep.h
create mode 100644 sysdeps/arc/tls-macros.h
create mode 100644 sysdeps/arc/tst-audit.h
create mode 100644 sysdeps/unix/sysv/linux/arc/Implies
create mode 100644 sysdeps/unix/sysv/linux/arc/Makefile
create mode 100644 sysdeps/unix/sysv/linux/arc/Versions
create mode 100644 sysdeps/unix/sysv/linux/arc/arch-fork.h
create mode 100644 sysdeps/unix/sysv/linux/arc/bits/mman.h
create mode 100644 sysdeps/unix/sysv/linux/arc/bits/sigaction.h
create mode 100644 sysdeps/unix/sysv/linux/arc/c++-types.data
create mode 100644 sysdeps/unix/sysv/linux/arc/cacheflush.c
create mode 100644 sysdeps/unix/sysv/linux/arc/clone.S
create mode 100644 sysdeps/unix/sysv/linux/arc/configure
create mode 100644 sysdeps/unix/sysv/linux/arc/configure.ac
create mode 100644 sysdeps/unix/sysv/linux/arc/kernel-features.h
create mode 100644 sysdeps/unix/sysv/linux/arc/ld.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/ldconfig.h
create mode 100644 sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libanl.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libc.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libcrypt.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libdl.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libm.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libnsl.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libpthread.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libresolv.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/librt.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libthread_db.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/libutil.abilist
create mode 100644 sysdeps/unix/sysv/linux/arc/localplt.data
create mode 100644 sysdeps/unix/sysv/linux/arc/mmap_internal.h
create mode 100644 sysdeps/unix/sysv/linux/arc/profil-counter.h
create mode 100644 sysdeps/unix/sysv/linux/arc/pt-vfork.S
create mode 100644 sysdeps/unix/sysv/linux/arc/shlib-versions
create mode 100644 sysdeps/unix/sysv/linux/arc/sigaction.c
create mode 100644 sysdeps/unix/sysv/linux/arc/sigcontextinfo.h
create mode 100644 sysdeps/unix/sysv/linux/arc/sys/cachectl.h
create mode 100644 sysdeps/unix/sysv/linux/arc/sys/procfs.h
create mode 100644 sysdeps/unix/sysv/linux/arc/sys/ucontext.h
create mode 100644 sysdeps/unix/sysv/linux/arc/sys/user.h
create mode 100644 sysdeps/unix/sysv/linux/arc/syscall.S
create mode 100644 sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
create mode 100644 sysdeps/unix/sysv/linux/arc/sysdep.c
create mode 100644 sysdeps/unix/sysv/linux/arc/sysdep.h
create mode 100644 sysdeps/unix/sysv/linux/arc/ucontext_i.sym
create mode 100644 sysdeps/unix/sysv/linux/arc/vfork.S
diff --git a/.gitignore b/.gitignore
index 07d4a129e5dc..969dabc873d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,6 +6,7 @@
*.bz2
*.rej
*.orig
+*.sw*
=*
TAGS
TODO
diff --git a/elf/elf.h b/elf/elf.h
index 8b58818228ba..dff23c2d2a19 100644
--- a/elf/elf.h
+++ b/elf/elf.h
@@ -366,6 +366,7 @@ typedef struct
/* Old spellings/synonyms. */
#define EM_ARC_A5 EM_ARC_COMPACT
+#define EM_ARCV2 EM_ARC_COMPACT2
/* If it is necessary to assign new unofficial EM_* values, please
pick large random numbers (0x8523, 0xa7f2, etc.) to minimize the
diff --git a/sysdeps/arc/Implies b/sysdeps/arc/Implies
new file mode 100644
index 000000000000..387a0ca05204
--- /dev/null
+++ b/sysdeps/arc/Implies
@@ -0,0 +1,3 @@
+wordsize-32
+ieee754/dbl-64
+ieee754/flt-32
diff --git a/sysdeps/arc/Makefile b/sysdeps/arc/Makefile
new file mode 100644
index 000000000000..b43ae0d0dedf
--- /dev/null
+++ b/sysdeps/arc/Makefile
@@ -0,0 +1,26 @@
+# Copyright (C) 1993-2015 Free Software Foundation, Inc.
+# This file is part of the GNU C Library.
+
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library. If not, see
+# <http://www.gnu.org/licenses/>.
+
+pic-ccflag = -fpic
+
+# We don't support long doubles as a distinct type. We don't need to set
+# this variable; it's here mostly for documentational purposes.
+long-double-fcts = no
+
+ifeq ($(subdir),debug)
+CFLAGS-backtrace.c += -funwind-tables
+endif
diff --git a/sysdeps/arc/Subdirs b/sysdeps/arc/Subdirs
new file mode 100644
index 000000000000..87eadf302430
--- /dev/null
+++ b/sysdeps/arc/Subdirs
@@ -0,0 +1 @@
+soft-fp
diff --git a/sysdeps/arc/Versions b/sysdeps/arc/Versions
new file mode 100644
index 000000000000..54ac5e7d1b5f
--- /dev/null
+++ b/sysdeps/arc/Versions
@@ -0,0 +1,13 @@
+libc {
+ GLIBC_2.24 {
+ __adddf3; __addsf3; __divdf3; __divsf3; __eqdf2; __eqsf2; __extendsfdf2;
+ __fixdfdi; __fixdfsi; __fixsfdi; __fixsfsi;
+ __fixunsdfdi; __fixunsdfsi; __fixunssfdi; __fixunssfsi;
+ __floatdidf; __floatdisf; __floatsidf; __floatsisf;
+ __floatundidf; __floatundisf; __floatunsidf; __floatunsisf;
+ __gedf2; __gesf2; __gtdf2; __gtsf2; __ledf2; __lesf2; __ltdf2; __ltsf2;
+ __muldf3; __mulsf3; __nedf2; __nesf2; __negdf2; __negsf2;
+ __subdf3; __subsf3; __truncdfsf2; __unorddf2; __unordsf2;
+ __syscall_error;
+ }
+}
diff --git a/sysdeps/arc/__longjmp.S b/sysdeps/arc/__longjmp.S
new file mode 100644
index 000000000000..6abb4412f104
--- /dev/null
+++ b/sysdeps/arc/__longjmp.S
@@ -0,0 +1,50 @@
+/* longjmp for ARC.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <jmpbuf-offsets.h>
+
+;@ r0 = jump buffer from which regs will be restored
+;@ r1 = value that setjmp( ) will return due to this longjmp
+
+ENTRY(__longjmp)
+
+ ld_s r13, [r0]
+ ld_s r14, [r0,4]
+ ld r15, [r0,8]
+ ld r16, [r0,12]
+ ld r17, [r0,16]
+ ld r18, [r0,20]
+ ld r19, [r0,24]
+ ld r20, [r0,28]
+ ld r21, [r0,32]
+ ld r22, [r0,36]
+ ld r23, [r0,40]
+ ld r24, [r0,44]
+ ld r25, [r0,48]
+
+ ld blink, [r0,60] ; load it early enough to not stall the pipeline
+ ld fp, [r0,52]
+ ld sp, [r0,56]
+
+ mov.f r0, r1 ; get the setjmp return value(due to longjmp) in place
+
+ j.d [blink] ; to caller of setjmp location, right after the call
+ mov.z r0, 1 ; can't let setjmp return 0 when it is due to longjmp
+
+END(__longjmp)
diff --git a/sysdeps/arc/abort-instr.h b/sysdeps/arc/abort-instr.h
new file mode 100644
index 000000000000..474098e9a819
--- /dev/null
+++ b/sysdeps/arc/abort-instr.h
@@ -0,0 +1,2 @@
+/* FLAG 1 is privilege mode only instruction, hence will crash any program */
+#define ABORT_INSTRUCTION asm ("flag 1")
diff --git a/sysdeps/arc/atomic-machine.h b/sysdeps/arc/atomic-machine.h
new file mode 100644
index 000000000000..330ff2524f92
--- /dev/null
+++ b/sysdeps/arc/atomic-machine.h
@@ -0,0 +1,85 @@
+/* Low-level functions for atomic operations. ARC version.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ARC_BITS_ATOMIC_H
+#define _ARC_BITS_ATOMIC_H 1
+
+#include <stdint.h>
+
+typedef int32_t atomic32_t;
+typedef uint32_t uatomic32_t;
+typedef int_fast32_t atomic_fast32_t;
+typedef uint_fast32_t uatomic_fast32_t;
+
+typedef intptr_t atomicptr_t;
+typedef uintptr_t uatomicptr_t;
+typedef intmax_t atomic_max_t;
+typedef uintmax_t uatomic_max_t;
+
+#define __HAVE_64B_ATOMICS 0
+#define USE_ATOMIC_COMPILER_BUILTINS 0
+#define ATOMIC_EXCHANGE_USES_CAS 1
+
+#define __arch_compare_and_exchange_val_8_acq(mem, newval, oldval) \
+ (abort (), (__typeof (*mem)) 0)
+#define __arch_compare_and_exchange_val_16_acq(mem, newval, oldval) \
+ (abort (), (__typeof (*mem)) 0)
+#define __arch_compare_and_exchange_val_64_acq(mem, newval, oldval) \
+ (abort (), (__typeof (*mem)) 0)
+
+#define __arch_compare_and_exchange_bool_8_acq(mem, newval, oldval) \
+ (abort (), 0)
+#define __arch_compare_and_exchange_bool_16_acq(mem, newval, oldval) \
+ (abort (), 0)
+#define __arch_compare_and_exchange_bool_64_acq(mem, newval, oldval) \
+ (abort (), 0)
+
+#define __arch_compare_and_exchange_val_32_acq(mem, newval, oldval) \
+ ({ \
+ __typeof(*(mem)) prev; \
+ \
+ __asm__ __volatile__( \
+ "1: llock %0, [%1] \n" \
+ " brne %0, %2, 2f \n" \
+ " scond %3, [%1] \n" \
+ " bnz 1b \n" \
+ "2: \n" \
+ : "=&r"(prev) \
+ : "r"(mem), "ir"(oldval), \
+ "r"(newval) /* can't be "ir". scond can't take limm for "b" */\
+ : "cc", "memory"); \
+ \
+ prev; \
+ })
+
+# define atomic_exchange_acq(mem, newvalue) \
+ ({ \
+ __typeof(*(mem)) __val = (newvalue); \
+ \
+ __asm__ __volatile__( \
+ "1: ex %0, [%1] \n" \
+ : "+r"(__val) \
+ : "r"(mem) \
+ : "memory"); \
+ \
+ __val; \
+ })
+
+#define atomic_full_barrier() ({ asm volatile ("dmb 3":::"memory"); })
+
+#endif /* _ARC_BITS_ATOMIC_H */
diff --git a/sysdeps/arc/backtrace.c b/sysdeps/arc/backtrace.c
new file mode 100644
index 000000000000..27ce597b3950
--- /dev/null
+++ b/sysdeps/arc/backtrace.c
@@ -0,0 +1 @@
+#include <sysdeps/x86_64/backtrace.c>
diff --git a/sysdeps/arc/bits/endian.h b/sysdeps/arc/bits/endian.h
new file mode 100644
index 000000000000..88fbcf39a58a
--- /dev/null
+++ b/sysdeps/arc/bits/endian.h
@@ -0,0 +1,12 @@
+/* The ARC architecture has selectable endianness. */
+
+#ifndef _ENDIAN_H
+# error "Never use <bits/endian.h> directly; include <endian.h> instead."
+#endif
+
+#ifdef __BIG_ENDIAN__
+# define __BYTE_ORDER __BIG_ENDIAN
+#endif
+#ifdef __LITTLE_ENDIAN__
+# define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
diff --git a/sysdeps/arc/bits/fenv.h b/sysdeps/arc/bits/fenv.h
new file mode 100644
index 000000000000..49f90ade25ad
--- /dev/null
+++ b/sysdeps/arc/bits/fenv.h
@@ -0,0 +1,52 @@
+/* Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _FENV_H
+# error "Never use <bits/fenv.h> directly; include <fenv.h> instead."
+#endif
+
+/* ARC hardware FPU does not support exceptions,
+ nor does the software floating-point support. */
+#define FE_ALL_EXCEPT 0
+
+/* ARC supports only round-to-nearest. The software
+ floating-point support also acts this way. */
+enum
+ {
+ __FE_UNDEFINED = 0,
+
+ FE_TONEAREST =
+#define FE_TONEAREST 1
+ FE_TONEAREST,
+ };
+
+/* Type representing exception flags. */
+typedef unsigned int fexcept_t;
+
+/* Type representing floating-point environment. */
+typedef unsigned int fenv_t;
+
+/* If the default argument is used we use this value. */
+#define FE_DFL_ENV ((const fenv_t *) -1)
+
+#if __GLIBC_USE (IEC_60559_BFP_EXT)
+/* Type representing floating-point control modes. */
+typedef unsigned int femode_t;
+
+/* Default floating-point control modes. */
+# define FE_DFL_MODE ((const femode_t *) -1L)
+#endif
diff --git a/sysdeps/arc/bits/link.h b/sysdeps/arc/bits/link.h
new file mode 100644
index 000000000000..d8263f084974
--- /dev/null
+++ b/sysdeps/arc/bits/link.h
@@ -0,0 +1,52 @@
+/* Machine-specific declarations for dynamic linker interface, ARC version.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINK_H
+# error "Never include <bits/link.h> directly; use <link.h> instead."
+#endif
+
+/* Registers for entry into PLT on ARC. */
+typedef struct La_arc_regs
+{
+ uint32_t lr_reg[8]; /* r0 through r7 (upto 8 args) */
+} La_arc_regs;
+
+/* Return values for calls from PLT on ARC. */
+typedef struct La_arc_retval
+{
+ /* For ARCv2, a 64-bit integer return value can use 2 regs */
+ uint32_t lrv_reg[2];
+} La_arc_retval;
+
+__BEGIN_DECLS
+
+extern Elf32_Addr la_arc_gnu_pltenter (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ La_arc_regs *__regs,
+ unsigned int *__flags,
+ const char *__symname,
+ long int *__framesizep);
+extern unsigned int la_arc_gnu_pltexit (Elf32_Sym *__sym, unsigned int __ndx,
+ uintptr_t *__refcook,
+ uintptr_t *__defcook,
+ const La_arc_regs *__inregs,
+ La_arc_retval *__outregs,
+ const char *symname);
+
+__END_DECLS
diff --git a/sysdeps/arc/bits/setjmp.h b/sysdeps/arc/bits/setjmp.h
new file mode 100644
index 000000000000..6fe5cbf1f86d
--- /dev/null
+++ b/sysdeps/arc/bits/setjmp.h
@@ -0,0 +1,33 @@
+/* Define the machine-dependent type `jmp_buf'. ARC version.
+ Copyright (C) 1992-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _BITS_SETJMP_H
+#define _BITS_SETJMP_H 1
+
+#if !defined(_SETJMP_H) && !defined(_PTHREAD_H)
+# error "Never include <bits/setjmp.h> directly; use <setjmp.h> instead."
+#endif
+
+#ifndef __ASSEMBLER__
+
+/* Saves r13-r25 (callee-saved), fp (frame pointer), sp (stack pointer),
+ * blink (branch-n-link) */
+typedef int __jmp_buf[32];
+#endif
+
+#endif
diff --git a/sysdeps/arc/bsd-_setjmp.S b/sysdeps/arc/bsd-_setjmp.S
new file mode 100644
index 000000000000..4e6a2da560c4
--- /dev/null
+++ b/sysdeps/arc/bsd-_setjmp.S
@@ -0,0 +1 @@
+/* _setjmp is in setjmp.S */
diff --git a/sysdeps/arc/bsd-setjmp.S b/sysdeps/arc/bsd-setjmp.S
new file mode 100644
index 000000000000..1da848d2f1ee
--- /dev/null
+++ b/sysdeps/arc/bsd-setjmp.S
@@ -0,0 +1 @@
+/* setjmp is in setjmp.S */
diff --git a/sysdeps/arc/configure b/sysdeps/arc/configure
new file mode 100644
index 000000000000..2033957d0d9f
--- /dev/null
+++ b/sysdeps/arc/configure
@@ -0,0 +1,17 @@
+# This file is generated from configure.ac by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/arc.
+
+$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+
+libc_cv_have_sdata_section=no
+
+# For ARC, historically ; was used for comments and not newline
+# Later # also got added to comment list, but ; couldn't be switched to
+# canonical newline as there's lots of code out there which will break
+libc_cv_asm_line_sep='`'
+cat >>confdefs.h <<_ACEOF
+#define ASM_LINE_SEP $libc_cv_asm_line_sep
+_ACEOF
+
+
+libc_cv_fpie=no
diff --git a/sysdeps/arc/configure.ac b/sysdeps/arc/configure.ac
new file mode 100644
index 000000000000..91e58efb35c8
--- /dev/null
+++ b/sysdeps/arc/configure.ac
@@ -0,0 +1,13 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/arc.
+
+AC_DEFINE(PI_STATIC_AND_HIDDEN)
+libc_cv_have_sdata_section=no
+
+# For ARC, historically ; was used for comments and not newline
+# Later # also got added to comment list, but ; couldn't be switched to
+# canonical newline as there's lots of code out there which will break
+libc_cv_asm_line_sep='`'
+AC_DEFINE_UNQUOTED(ASM_LINE_SEP, $libc_cv_asm_line_sep)
+
+libc_cv_fpie=no
diff --git a/sysdeps/arc/crti.S b/sysdeps/arc/crti.S
new file mode 100644
index 000000000000..d9f3fb65460a
--- /dev/null
+++ b/sysdeps/arc/crti.S
@@ -0,0 +1,77 @@
+/* Special .init and .fini section support for ARC.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <libc-symbols.h>
+#include <sysdep.h>
+
+#ifndef PREINIT_FUNCTION
+# define PREINIT_FUNCTION __gmon_start__
+#endif
+
+#ifndef PREINIT_FUNCTION_WEAK
+# define PREINIT_FUNCTION_WEAK 1
+#endif
+
+#if PREINIT_FUNCTION_WEAK
+ weak_extern (PREINIT_FUNCTION)
+#else
+ .hidden PREINIT_FUNCTION
+#endif
+
+ .section .init
+ .align 4
+ .global _init
+ .type _init,@function
+_init:
+ st.a blink, [sp,-4]
+ st.a fp, [sp,-4]
+ mov fp, sp
+#if PREINIT_FUNCTION_WEAK
+ ld r0, [pcl, @PREINIT_FUNCTION@gotpc]
+ tst r0, r0
+ jlnz [r0]
+#else
+ bl PREINIT_FUNCTION
+#endif
+
+ .section .fini
+ .align 4
+ .global _fini
+ .type _fini,@function
+_fini:
+ st.a blink,[sp,-4]
+ st.a fp,[sp,-4]
+ mov fp,sp
+ .align 4
diff --git a/sysdeps/arc/crtn.S b/sysdeps/arc/crtn.S
new file mode 100644
index 000000000000..e3e86a89e1cf
--- /dev/null
+++ b/sysdeps/arc/crtn.S
@@ -0,0 +1,56 @@
+/* Special .init and .fini section support for ARC.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+ .section .init
+ .align 4
+ .global _init
+ .type _init,@function
+ ; EPILOGUE
+ ld.ab fp,[sp,4]
+ ld blink,[sp,0]
+ j.d [blink]
+ add sp,sp,4
+; .size _init,.-_init
+
+ .section .fini
+ .align 4
+ .global _fini
+ .type _fini,@function
+ ; EPILOGUE
+ ld.ab fp,[sp,4]
+ ld blink,[sp,0]
+ j.d [blink]
+ add sp,sp,4
+; .size _fini,.-_fini
diff --git a/sysdeps/arc/dl-machine.h b/sysdeps/arc/dl-machine.h
new file mode 100644
index 000000000000..3f985702649d
--- /dev/null
+++ b/sysdeps/arc/dl-machine.h
@@ -0,0 +1,332 @@
+/* Machine-dependent ELF dynamic relocation inline functions. ARC version.
+ Copyright (C) 1995-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef dl_machine_h
+#define dl_machine_h
+
+#define ELF_MACHINE_NAME "arc"
+
+#include <string.h>
+#include <link.h>
+#include <dl-tls.h>
+
+/*
+ * Dynamic Linking ABI for ARCv2 ISA
+ *
+ * PLT
+ * -------------------------------- <---- DT_PLTGOT
+ * | ld r11, [pcl, off-to-GOT[1] | 0
+ * | | 4
+ * plt0 | ld r10, [pcl, off-to-GOT[2] | 8
+ * | | 12
+ * | j [r10] | 16
+ * --------------------------------
+ * | Base address of GOT | 20
+ * --------------------------------
+ * | ld r12, [pcl, off-to-GOT[3] | 24
+ * plt1 | |
+ * | j.d [r12] | 32
+ * | mov r12, pcl | 36
+ * --------------------------------
+ * | | 40
+ * ~ ~
+ * ~ ~
+ * | |
+ * --------------------------------
+ *
+ * .got
+ * --------------
+ * | [0] |
+ * | ... | Runtime address for data symbols
+ * | [n] |
+ * --------------
+ *
+ * .got.plt
+ * --------------
+ * | [0] | Build address of .dynamic
+ * --------------
+ * | [1] | Module info - setup by ld.so
+ * --------------
+ * | [2] | resolver entry point
+ * --------------
+ * | [3] |
+ * | ... | Runtime address for function symbols
+ * | [f] |
+ * --------------
+ *
+ * For ARCompact, the PLT is 12 bytes due to short instructions
+ *
+ * --------------------------------
+ * | ld r12, [pcl, off-to-GOT[3] | 24 (12 bytes each)
+ * plt1 | |
+ * | j_s.d [r12] | 32
+ * | mov_s r12, pcl | 34
+ * --------------------------------
+ * | | 36
+ *
+ */
+
+/* Return nonzero iff ELF header is compatible with the running host. */
+static inline int
+elf_machine_matches_host (const Elf32_Ehdr *ehdr)
+{
+ return ehdr->e_machine == EM_ARCV2;
+}
+
+/*
+ * Get build time address of .dynamic as setup in GOT[0]
+ * This is called very early in _dl_start() so it has not been relocated to
+ * runtime value
+ */
+static inline Elf32_Addr
+elf_machine_dynamic (void)
+{
+ extern const Elf32_Addr _GLOBAL_OFFSET_TABLE_[] attribute_hidden;
+ return _GLOBAL_OFFSET_TABLE_[0];
+}
+
+
+/* Return the run-time load address of the shared object. */
+static inline Elf32_Addr
+elf_machine_load_address (void)
+{
+ Elf32_Addr build_addr, run_addr;
+
+ /* For build address, below generates
+ * ld r0, [pcl, _GLOBAL_OFFSET_TABLE_@pcl]
+ */
+ build_addr = elf_machine_dynamic();
+ __asm__ ("add %0, pcl, _DYNAMIC@pcl \n" : "=r" (run_addr));
+
+ return run_addr - build_addr;
+}
+
+/* Set up the loaded object described by L so its unrelocated PLT
+ entries will jump to the on-demand fixup code in dl-runtime.c. */
+
+static inline int __attribute__ ((always_inline))
+elf_machine_runtime_setup (struct link_map *l, int lazy, int profile)
+{
+ extern void _dl_runtime_resolve (Elf32_Word);
+
+ if (l->l_info[DT_JMPREL] && lazy)
+ {
+ /* On ARC DT_PLTGOT point to .plt whose 5th word (after the PLT header)
+ * contains the address of .got */
+ Elf32_Addr *plt_base = (Elf32_Addr *) D_PTR (l, l_info[DT_PLTGOT]);
+ Elf32_Addr *got = (Elf32_Addr *) (plt_base[5] + l->l_addr);
+
+ got[1] = (Elf32_Addr) l; /* Identify this shared object. */
+
+ /* This function will get called to fix up the GOT entry indicated by
+ the offset on the stack, and then jump to the resolved address. */
+ got[2] = (Elf32_Addr) &_dl_runtime_resolve;
+ }
+
+ return lazy;
+}
+
+/* What this code does:
+ -ldso starts execution here when kernel returns from execve()
+ -calls into generic ldso entry point _dl_start( )
+ -optionally adjusts argc for executable if exec passed as cmd
+ -calls into app main with address of finaliser */
+
+#define RTLD_START asm ("\
+.text \n\
+.globl _start \n\
+.type _start, @function \n\
+_start: \n\
+ ; (1). bootstrap ld.so \n\
+ bl.d _dl_start \n\
+ mov_s r0, sp ; pass ptr to aux vector tbl \n\
+ mov r13, r0 ; safekeep app elf entry point \n\
+ \n\
+ ; (2). If ldso ran with executable as arg \n\
+ ; skip the extra args calc by dl_start() \n\
+ ld_s r1, [sp] ; orig argc \n\
+ ld r12, [pcl, _dl_skip_args@pcl] \n\
+ breq r12, 0, 1f \n\
+ \n\
+ add2 sp, sp, r12 ; discard argv entries from stack\n\
+ sub_s r1, r1, r12 ; adjusted argc, on stack \n\
+ st_s r1, [sp] \n\
+ add r2, sp, 4 \n\
+ ld r3, [pcl, _dl_argv@gotpc] ; ST doesn't support this addressing mode \n\
+ st r2, [r3] \n\
+1: \n\
+ ; (3). call preinit stuff \n\
+ ld r0, [pcl, _rtld_local@pcl] \n\
+ add r2, sp, 4 ; argv \n\
+ add2 r3, r2, r1 \n\
+ add r3, r3, 4 ; env \n\
+ bl _dl_init@plt \n\
+ \n\
+ ; (4) call app elf entry point \n\
+ add r0, pcl, _dl_fini@pcl \n\
+ j [r13] \n\
+ \n\
+ .size _start,.-_start \n\
+ .previous \n\
+");
+
+/* ELF_RTYPE_CLASS_PLT iff TYPE describes relocation of a PLT entry, so
+ PLT entries should not be allowed to define the value.
+ ELF_RTYPE_CLASS_NOCOPY iff TYPE should not be allowed to resolve to one
+ of the main executable's symbols, as for a COPY reloc. */
+#define elf_machine_type_class(type) \
+ ((((type) == R_ARC_JUMP_SLOT \
+ || (type) == R_ARC_TLS_DTPMOD \
+ || (type) == R_ARC_TLS_DTPOFF \
+ || (type) == R_ARC_TLS_TPOFF) * ELF_RTYPE_CLASS_PLT) \
+ | (((type) == R_ARC_COPY) * ELF_RTYPE_CLASS_COPY))
+
+/* A reloc type used for ld.so cmdline arg lookups to reject PLT entries. */
+#define ELF_MACHINE_JMP_SLOT R_ARC_JUMP_SLOT
+
+/* ARC uses Elf32_Rela relocations. */
+#define ELF_MACHINE_NO_REL 1
+#define ELF_MACHINE_NO_RELA 0
+
+/* Fixup a PLT entry to bounce directly to the function at VALUE. */
+
+static inline Elf32_Addr
+elf_machine_fixup_plt (struct link_map *map, lookup_t t,
+ const ElfW(Sym) *refsym, const ElfW(Sym) *sym,
+ const Elf32_Rela *reloc,
+ Elf32_Addr *reloc_addr, Elf32_Addr value)
+{
+ return *reloc_addr = value;
+}
+
+/* Return the final value of a plt relocation. */
+static inline Elf32_Addr
+elf_machine_plt_value (struct link_map *map, const Elf32_Rela *reloc,
+ Elf32_Addr value)
+{
+ return value;
+}
+
+/* Names of the architecture-specific auditing callback functions. */
+#define ARCH_LA_PLTENTER arc_gnu_pltenter
+#define ARCH_LA_PLTEXIT arc_gnu_pltexit
+
+#endif /* dl_machine_h */
+
+#ifdef RESOLVE_MAP
+
+auto inline void __attribute__ ((always_inline))
+elf_machine_rela (struct link_map *map, const ElfW(Rela) *reloc,
+ const ElfW(Sym) *sym, const struct r_found_version *version,
+ void *const reloc_addr_arg, int skip_ifunc)
+{
+ Elf32_Addr *const reloc_addr = reloc_addr_arg;
+ const unsigned int r_type = ELF32_R_TYPE (reloc->r_info);
+
+ if (__glibc_unlikely (r_type == R_ARC_RELATIVE))
+ *reloc_addr += map->l_addr;
+ else if (__glibc_unlikely (r_type == R_ARC_NONE))
+ return;
+ else
+ {
+ const Elf32_Sym *const refsym = sym;
+ struct link_map *sym_map = RESOLVE_MAP (&sym, version, r_type);
+ Elf32_Addr value = sym == NULL ? 0 : sym_map->l_addr + sym->st_value;
+
+ switch (r_type)
+ {
+ case R_ARC_COPY:
+ if (sym == NULL)
+ /* This can happen in trace mode if an object could not be
+ found. */
+ break;
+ if (sym->st_size > refsym->st_size
+ || (sym->st_size < refsym->st_size && GLRO(dl_verbose)))
+ {
+ const char *strtab;
+
+ strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
+ _dl_error_printf ("\
+%s: Symbol `%s' has different size in shared object, consider re-linking\n",
+ rtld_progname ?: "<program name unknown>",
+ strtab + refsym->st_name);
+ }
+ memcpy (reloc_addr_arg, (void *) value,
+ MIN (sym->st_size, refsym->st_size));
+ break;
+ case R_ARC_GLOB_DAT:
+ case R_ARC_JUMP_SLOT:
+ *reloc_addr = value;
+ break;
+ case R_ARC_TLS_DTPMOD:
+ /* Get the information from the link map returned by the
+ resolv function. */
+ if (sym_map != NULL)
+ *reloc_addr = sym_map->l_tls_modid;
+ break;
+
+ case R_ARC_TLS_DTPOFF:
+ if (sym != NULL)
+ {
+ *reloc_addr = sym->st_value;
+ }
+ break;
+
+ case R_ARC_TLS_TPOFF:
+ if (sym != NULL)
+ {
+ CHECK_STATIC_TLS (map, sym_map);
+ *reloc_addr = sym_map->l_tls_offset + sym->st_value + reloc->r_addend;
+ }
+ break;
+ case R_ARC_32:
+ *reloc_addr += value + reloc->r_addend;
+ break;
+
+ case R_ARC_PC32:
+ *reloc_addr += value + reloc->r_addend - (unsigned long) reloc_addr;
+ break;
+
+ default:
+ _dl_reloc_bad_type (map, r_type, 0);
+ break;
+ }
+ }
+}
+
+auto inline void __attribute__((always_inline))
+elf_machine_rela_relative (ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
+ void *const reloc_addr_arg)
+{
+ Elf32_Addr *const reloc_addr = reloc_addr_arg;
+ *reloc_addr += l_addr; // + reloc->r_addend;
+}
+
+auto inline void __attribute__((always_inline))
+elf_machine_lazy_rel (struct link_map *map,
+ ElfW(Addr) l_addr, const ElfW(Rela) *reloc,
+ int skip_ifunc)
+{
+ Elf32_Addr *const reloc_addr = (void *) (l_addr + reloc->r_offset);
+ if (ELF32_R_TYPE (reloc->r_info) == R_ARC_JUMP_SLOT)
+ *reloc_addr += l_addr;
+ else
+ _dl_reloc_bad_type (map, ELF32_R_TYPE (reloc->r_info), 1);
+}
+
+#endif /* RESOLVE_MAP */
diff --git a/sysdeps/arc/dl-runtime.c b/sysdeps/arc/dl-runtime.c
new file mode 100644
index 000000000000..76d39fab5ab8
--- /dev/null
+++ b/sysdeps/arc/dl-runtime.c
@@ -0,0 +1,21 @@
+/* PLT jump into resolver passes PC of PLTn, while _dl_fixup expects the
+ address of corresponding .rela.plt entry */
+
+#ifdef __A7__
+#define ARC_PLT_SIZE 12
+#else
+#define ARC_PLT_SIZE 16
+#endif
+
+#define reloc_index \
+({ \
+ unsigned long plt0 = D_PTR (l, l_info[DT_PLTGOT]); \
+ unsigned long pltn = reloc_arg; \
+ /* exclude PL0 and PLT1 */ \
+ unsigned long idx = (pltn - plt0)/ARC_PLT_SIZE - 2; \
+ idx; \
+})
+
+#define reloc_offset reloc_index * sizeof (PLTREL)
+
+#include <elf/dl-runtime.c>
diff --git a/sysdeps/arc/dl-sysdep.h b/sysdeps/arc/dl-sysdep.h
new file mode 100644
index 000000000000..80a6f58a8eca
--- /dev/null
+++ b/sysdeps/arc/dl-sysdep.h
@@ -0,0 +1,25 @@
+/* System-specific settings for dynamic linker code. ARC version.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include_next <dl-sysdep.h>
+
+/* _dl_argv cannot be attribute_relro, because _dl_start_user
+ might write into it after _dl_start returns. */
+#define DL_ARGV_NOT_RELRO 1
+
+#define DL_EXTERN_PROTECTED_DATA
diff --git a/sysdeps/arc/dl-tls.h b/sysdeps/arc/dl-tls.h
new file mode 100644
index 000000000000..8ad07bfc1318
--- /dev/null
+++ b/sysdeps/arc/dl-tls.h
@@ -0,0 +1,30 @@
+/* Thread-local storage handling in the ELF dynamic linker. ARC version.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+/* Type used for the representation of TLS information in the GOT. */
+typedef struct
+{
+ unsigned long int ti_module;
+ unsigned long int ti_offset;
+} tls_index;
+
+extern void *__tls_get_addr (tls_index *ti);
+
+/* Value used for dtv entries for which the allocation is delayed. */
+#define TLS_DTV_UNALLOCATED ((void *) -1l)
diff --git a/sysdeps/arc/dl-trampoline.S b/sysdeps/arc/dl-trampoline.S
new file mode 100644
index 000000000000..0e781af8380e
--- /dev/null
+++ b/sysdeps/arc/dl-trampoline.S
@@ -0,0 +1,72 @@
+/* PLT trampolines. ARC version.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <libc-symbols.h>
+
+#include <sysdep.h>
+#include <sys/syscall.h>
+
+; Save the registers which resolver could possibly clobber
+; r0-r9: args to the function - symbol being resolved
+; r10-r12 are already clobbered by PLTn, PLT0 thus neednot be saved
+
+.macro SAVE_CALLER_SAVED
+ push_s r0
+ push_s r1
+ push_s r2
+ push_s r3
+ st.a r4, [sp, -4]
+ st.a r5, [sp, -4]
+ st.a r6, [sp, -4]
+ st.a r7, [sp, -4]
+ st.a r8, [sp, -4]
+ st.a r9, [sp, -4]
+ push_s blink
+.endm
+
+.macro RESTORE_CALLER_SAVED_BUT_R0
+ ld.ab blink,[sp, 4]
+ ld.ab r9, [sp, 4]
+ ld.ab r8, [sp, 4]
+ ld.ab r7, [sp, 4]
+ ld.ab r6, [sp, 4]
+ ld.ab r5, [sp, 4]
+ ld.ab r4, [sp, 4]
+ pop_s r3
+ pop_s r2
+ pop_s r1
+.endm
+
+; Upon entry, PLTn, which led us here, sets up the following regs
+; r11 = Module info (tpnt pointer as expected by resolver)
+; r12 = PC of the PLTn itself - needed by resolver to find
+; corresponding .rela.plt entry
+
+ENTRY(_dl_runtime_resolve)
+ ; args to func being resolved, which resolver might clobber
+ SAVE_CALLER_SAVED
+
+ mov_s r1, r12
+ bl.d _dl_fixup
+ mov r0, r11
+
+ RESTORE_CALLER_SAVED_BUT_R0
+ j_s.d [r0] ; r0 has resolved function addr
+ pop_s r0 ; restore first arg to resolved call
+END(_dl_runtime_resolve)
diff --git a/sysdeps/arc/gccframe.h b/sysdeps/arc/gccframe.h
new file mode 100644
index 000000000000..df7562571dbe
--- /dev/null
+++ b/sysdeps/arc/gccframe.h
@@ -0,0 +1,21 @@
+/* Definition of object in frame unwind info. ARC version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define FIRST_PSEUDO_REGISTER 40
+
+#include <sysdeps/generic/gccframe.h>
diff --git a/sysdeps/arc/gmp-mparam.h b/sysdeps/arc/gmp-mparam.h
new file mode 100644
index 000000000000..67d25d342c0e
--- /dev/null
+++ b/sysdeps/arc/gmp-mparam.h
@@ -0,0 +1,23 @@
+/* gmp-mparam.h -- Compiler/machine parameter header file.
+
+Copyright (C) 2015 Free Software Foundation, Inc.
+
+This file is part of the GNU MP Library.
+
+The GNU MP Library is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or (at your
+option) any later version.
+
+The GNU MP Library is distributed in the hope that it will be useful, but
+WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
+License for more details.
+
+You should have received a copy of the GNU Lesser General Public License
+along with the GNU MP Library; see the file COPYING.LIB. If not, see
+<http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/gmp-mparam.h>
+
+#define IEEE_DOUBLE_BIG_ENDIAN 0
diff --git a/sysdeps/arc/jmpbuf-offsets.h b/sysdeps/arc/jmpbuf-offsets.h
new file mode 100644
index 000000000000..84010cb6c428
--- /dev/null
+++ b/sysdeps/arc/jmpbuf-offsets.h
@@ -0,0 +1,46 @@
+/* Private macros for accessing __jmp_buf contents. ARC version.
+ Copyright (C) 2006-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Save offsets within __jmp_buf. */
+/* We don't use most of these symbols; they are here for documentation. */
+
+/* Callee Regs */
+#define JB_R13 0
+#define JB_R14 1
+#define JB_R15 2
+#define JB_R16 3
+#define JB_R17 4
+#define JB_R18 5
+#define JB_R19 6
+#define JB_R20 7
+#define JB_R21 8
+#define JB_R22 9
+#define JB_R23 10
+#define JB_R24 11
+#define JB_R25 12
+
+/* Frame Pointer, Stack Pointer, Branch-n-link */
+#define JB_FP 13
+#define JB_SP 14
+#define JB_BLINK 15
+
+/* We save space for some extra state to accommodate future changes. */
+#define JB_NUM 32 /* words */
+
+/* Helper for generic ____longjmp_chk(). */
+#define JB_FRAME_ADDRESS(buf) ((void *) (unsigned long) (buf[JB_SP]))
diff --git a/sysdeps/arc/jmpbuf-unwind.h b/sysdeps/arc/jmpbuf-unwind.h
new file mode 100644
index 000000000000..c7ebfb7752d4
--- /dev/null
+++ b/sysdeps/arc/jmpbuf-unwind.h
@@ -0,0 +1,47 @@
+/* Examine __jmp_buf for unwinding frames. ARC version.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+#include <stdint.h>
+#include <unwind.h>
+
+/* Test if longjmp to JMPBUF would unwind the frame
+ containing a local variable at ADDRESS. */
+
+#define _JMPBUF_UNWINDS(jmpbuf, address, demangle) \
+ ((void *) (address) < (void *) demangle (jmpbuf[JB_SP]))
+
+#define _JMPBUF_CFA_UNWINDS_ADJ(_jmpbuf, _context, _adj) \
+ _JMPBUF_UNWINDS_ADJ (_jmpbuf, (void *) _Unwind_GetCFA (_context), _adj)
+
+static inline uintptr_t __attribute__ ((unused))
+_jmpbuf_sp (__jmp_buf jmpbuf)
+{
+ uintptr_t sp = jmpbuf[JB_SP];
+#ifdef PTR_DEMANGLE
+ PTR_DEMANGLE (sp);
+#endif
+ return sp;
+}
+
+#define _JMPBUF_UNWINDS_ADJ(_jmpbuf, _address, _adj) \
+ ((uintptr_t) (_address) - (_adj) < (uintptr_t) (_jmpbuf_sp (_jmpbuf) - (_adj)))
+
+/* We use the normal longjmp for unwinding. */
+#define __libc_unwind_longjmp(buf, val) __libc_longjmp (buf, val)
diff --git a/sysdeps/arc/ldsodefs.h b/sysdeps/arc/ldsodefs.h
new file mode 100644
index 000000000000..66b9f5031b5c
--- /dev/null
+++ b/sysdeps/arc/ldsodefs.h
@@ -0,0 +1,43 @@
+/* Run-time dynamic linker data structures for loaded ELF shared objects.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ARC_LDSODEFS_H
+#define _ARC_LDSODEFS_H 1
+
+#include <elf.h>
+
+struct La_arc_regs;
+struct La_arc_retval;
+
+#define ARCH_PLTENTER_MEMBERS \
+ ElfW(Addr) (*arc_gnu_pltenter) (ElfW(Sym) *, unsigned int, \
+ uintptr_t *, uintptr_t *, \
+ const struct La_arc_regs *, \
+ unsigned int *, const char *, \
+ long int *);
+
+#define ARCH_PLTEXIT_MEMBERS \
+ unsigned int (*arc_gnu_pltexit) (ElfW(Sym) *, unsigned int, \
+ uintptr_t *, uintptr_t *, \
+ const struct La_arc_regs *, \
+ struct La_arc_retval *, \
+ const char *);
+
+#include_next <ldsodefs.h>
+
+#endif
diff --git a/sysdeps/arc/libc-tls.c b/sysdeps/arc/libc-tls.c
new file mode 100644
index 000000000000..160dacfe6f3c
--- /dev/null
+++ b/sysdeps/arc/libc-tls.c
@@ -0,0 +1,27 @@
+/* Thread-local storage handling in the ELF dynamic linker. ARC version.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <csu/libc-tls.c>
+#include <dl-tls.h>
+
+void *
+__tls_get_addr (tls_index *ti)
+{
+ dtv_t *dtv = THREAD_DTV ();
+ return (char *) dtv[1].pointer.val + ti->ti_offset;
+}
diff --git a/sysdeps/arc/libm-test-ulps b/sysdeps/arc/libm-test-ulps
new file mode 100644
index 000000000000..f1a01fdb30ac
--- /dev/null
+++ b/sysdeps/arc/libm-test-ulps
@@ -0,0 +1,394 @@
+# Begin of automatic generation
+
+# Maximal error of functions:
+Function: "acos":
+float: 1
+ifloat: 1
+
+Function: "acosh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "asin":
+float: 1
+ifloat: 1
+
+Function: "asinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "atan":
+float: 1
+ifloat: 1
+
+Function: "atan2":
+float: 1
+ifloat: 1
+
+Function: "atanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "cabs":
+double: 1
+idouble: 1
+
+Function: Real part of "cacos":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cacos":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "cacosh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "cacosh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "carg":
+float: 1
+ifloat: 1
+
+Function: Real part of "casin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "casin":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "casinh":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Imaginary part of "casinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "catan":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "catan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "catanh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "catanh":
+float: 1
+ifloat: 1
+
+Function: "cbrt":
+double: 3
+float: 1
+idouble: 3
+ifloat: 1
+
+Function: Real part of "ccos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccos":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "ccosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ccosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "cexp":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Imaginary part of "cexp":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: Real part of "clog":
+double: 3
+float: 3
+idouble: 3
+ifloat: 3
+
+Function: Imaginary part of "clog":
+float: 1
+ifloat: 1
+
+Function: Real part of "clog10":
+double: 3
+float: 4
+idouble: 3
+ifloat: 4
+
+Function: Imaginary part of "clog10":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "cos":
+float: 1
+ifloat: 1
+
+Function: "cosh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "cpow":
+double: 2
+float: 4
+idouble: 2
+ifloat: 4
+
+Function: Imaginary part of "cpow":
+float: 2
+ifloat: 2
+
+Function: Real part of "csin":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csinh":
+float: 1
+ifloat: 1
+
+Function: Imaginary part of "csinh":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Real part of "csqrt":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Imaginary part of "csqrt":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: Real part of "ctan":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: Imaginary part of "ctan":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Real part of "ctanh":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: Imaginary part of "ctanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "erf":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "erfc":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "exp":
+float: 1
+ifloat: 1
+
+Function: "exp10":
+double: 2
+idouble: 2
+
+Function: "exp2":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "expm1":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "gamma":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "hypot":
+double: 1
+idouble: 1
+
+Function: "j0":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "j1":
+double: 1
+float: 2
+idouble: 1
+ifloat: 2
+
+Function: "jn":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "lgamma":
+double: 4
+float: 4
+idouble: 4
+ifloat: 4
+
+Function: "log":
+float: 1
+ifloat: 1
+
+Function: "log10":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "log1p":
+double: 1
+float: 1
+idouble: 1
+ifloat: 1
+
+Function: "log2":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "pow":
+float: 3
+ifloat: 3
+
+Function: "pow10":
+double: 2
+idouble: 2
+
+Function: "sin":
+float: 1
+ifloat: 1
+
+Function: "sincos":
+float: 1
+ifloat: 1
+
+Function: "sinh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tan":
+float: 1
+ifloat: 1
+
+Function: "tanh":
+double: 2
+float: 2
+idouble: 2
+ifloat: 2
+
+Function: "tgamma":
+double: 5
+float: 5
+idouble: 5
+ifloat: 5
+
+Function: "y0":
+double: 2
+float: 1
+idouble: 2
+ifloat: 1
+
+Function: "y1":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+Function: "yn":
+double: 3
+float: 2
+idouble: 3
+ifloat: 2
+
+# end of automatic generation
diff --git a/sysdeps/arc/libm-test-ulps-name b/sysdeps/arc/libm-test-ulps-name
new file mode 100644
index 000000000000..8c4fba4f9ae0
--- /dev/null
+++ b/sysdeps/arc/libm-test-ulps-name
@@ -0,0 +1 @@
+ARC
diff --git a/sysdeps/arc/machine-gmon.h b/sysdeps/arc/machine-gmon.h
new file mode 100644
index 000000000000..b9bdd2c6d43a
--- /dev/null
+++ b/sysdeps/arc/machine-gmon.h
@@ -0,0 +1,30 @@
+/* Machine-dependent definitions for profiling support. ARC version.
+ Copyright (C) 1996-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+#define _MCOUNT_DECL(frompc, selfpc) \
+static void __attribute_used__ __mcount_internal (u_long frompc, u_long selfpc)
+
+#define MCOUNT \
+ asm (".globl _mcount\n\t" \
+ ".type _mcount,@function\n\t" \
+ "_mcount:\n\t" \
+ "flag 1 \n\t" \
+ ".size _mcount, . - _mcount\n\t" \
+ );
diff --git a/sysdeps/arc/math-tests.h b/sysdeps/arc/math-tests.h
new file mode 100644
index 000000000000..2029c963b6e3
--- /dev/null
+++ b/sysdeps/arc/math-tests.h
@@ -0,0 +1,28 @@
+/* Configuration for math tests. ARC version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Current ARC soft-float does not support exceptions or rounding
+ modes. */
+#define ROUNDING_TESTS_float(MODE) ((MODE) == FE_TONEAREST)
+#define ROUNDING_TESTS_double(MODE) ((MODE) == FE_TONEAREST)
+#define ROUNDING_TESTS_long_double(MODE) ((MODE) == FE_TONEAREST)
+#define EXCEPTION_TESTS_float 0
+#define EXCEPTION_TESTS_double 0
+#define EXCEPTION_TESTS_long_double 0
+
+#include_next <math-tests.h>
diff --git a/sysdeps/arc/math_private.h b/sysdeps/arc/math_private.h
new file mode 100644
index 000000000000..77416da20387
--- /dev/null
+++ b/sysdeps/arc/math_private.h
@@ -0,0 +1,33 @@
+#ifndef _MATH_PRIVATE_H
+
+/* Suppress use of exceptions here to avoid build errors if the FE_*
+ macros aren't defined. Only allow rounding modes implemented for ARC.
+
+ This does mean that some code will silently fail to report exceptions,
+ set rounding mode as expected, etc., but it allows math code to compile
+ that otherwise wouldn't (such as math/s_fma.c) and so is valuable.
+
+ We intentionally ignore the "exception" arguments of functions that
+ take an exception, since we can't even evaluate the argument
+ without causing a build failure. The extra level of statement
+ expression wrapping avoids "statement with no effect" warnings.
+ Since the callers don't check for errors anyway, we just claim
+ success in every case.
+
+ The overrides for libc_ functions must happen before we include
+ the generic math_private.h, and the overrides for regular
+ <fenv.h> functions must happen afterwards, to avoid clashing with
+ the declarations of those functions. */
+
+#define libc_fesetround(rnd) ({ 0; })
+#define libc_fetestexcept(exc) ({ 0; })
+#define libc_feholdexcept_setround(env, exc) ({ (void) (env); 0; })
+#define libc_feupdateenv_test(env, exc) ({ (void) (env); 0; })
+
+#include_next <math_private.h>
+
+#define feraiseexcept(excepts) ({ 0; })
+#define __feraiseexcept(excepts) ({ 0; })
+#define feclearexcept(exc) ({ 0; })
+
+#endif
diff --git a/sysdeps/arc/memusage.h b/sysdeps/arc/memusage.h
new file mode 100644
index 000000000000..833545084c2f
--- /dev/null
+++ b/sysdeps/arc/memusage.h
@@ -0,0 +1,23 @@
+/* Machine-specific definitions for memory usage profiling, ARC version.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define GETSP() ({ register uintptr_t stack_ptr asm ("sp"); stack_ptr; })
+
+#define uatomic32_t unsigned int
+
+#include <sysdeps/generic/memusage.h>
diff --git a/sysdeps/arc/nptl/Makefile b/sysdeps/arc/nptl/Makefile
new file mode 100644
index 000000000000..2b7fa79a0ce1
--- /dev/null
+++ b/sysdeps/arc/nptl/Makefile
@@ -0,0 +1,22 @@
+# NPTL makefile fragment for ARC.
+# Copyright (C) 2005-2015 Free Software Foundation, Inc.
+#
+# This file is part of the GNU C Library.
+#
+# The GNU C Library is free software; you can redistribute it and/or
+# modify it under the terms of the GNU Lesser General Public
+# License as published by the Free Software Foundation; either
+# version 2.1 of the License, or (at your option) any later version.
+#
+# The GNU C Library is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# Lesser General Public License for more details.
+#
+# You should have received a copy of the GNU Lesser General Public
+# License along with the GNU C Library. If not, see
+# <http://www.gnu.org/licenses/>.
+
+ifeq ($(subdir),csu)
+gen-as-const-headers += tcb-offsets.sym
+endif
diff --git a/sysdeps/arc/nptl/bits/pthreadtypes-arch.h b/sysdeps/arc/nptl/bits/pthreadtypes-arch.h
new file mode 100644
index 000000000000..f125f25c2a93
--- /dev/null
+++ b/sysdeps/arc/nptl/bits/pthreadtypes-arch.h
@@ -0,0 +1,70 @@
+/* Machine-specific pthread type layouts. ARC version.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _BITS_PTHREADTYPES_ARCH_H
+#define _BITS_PTHREADTYPES_ARCH_H 1
+
+#include <endian.h>
+
+#define __SIZEOF_PTHREAD_ATTR_T 36
+#define __SIZEOF_PTHREAD_MUTEX_T 24
+#define __SIZEOF_PTHREAD_MUTEXATTR_T 4
+#define __SIZEOF_PTHREAD_COND_T 48
+#define __SIZEOF_PTHREAD_CONDATTR_T 4
+#define __SIZEOF_PTHREAD_RWLOCK_T 32
+#define __SIZEOF_PTHREAD_RWLOCKATTR_T 8
+#define __SIZEOF_PTHREAD_BARRIER_T 20
+#define __SIZEOF_PTHREAD_BARRIERATTR_T 4
+
+/* Data structure for mutex handling. */
+#define __PTHREAD_COMPAT_PADDING_MID
+#define __PTHREAD_COMPAT_PADDING_END
+#define __PTHREAD_MUTEX_LOCK_ELISION 0
+
+#define __LOCK_ALIGNMENT
+#define __ONCE_ALIGNMENT
+
+struct __pthread_rwlock_arch_t
+{
+ unsigned int __readers;
+ unsigned int __writers;
+ unsigned int __wrphase_futex;
+ unsigned int __writers_futex;
+ unsigned int __pad3;
+ unsigned int __pad4;
+#if __BYTE_ORDER == __BIG_ENDIAN
+ unsigned char __pad1;
+ unsigned char __pad2;
+ unsigned char __shared;
+ /* FLAGS must stay at this position in the structure to maintain
+ binary compatibility. */
+ unsigned char __flags;
+#else
+ /* FLAGS must stay at this position in the structure to maintain
+ binary compatibility. */
+ unsigned char __flags;
+ unsigned char __shared;
+ unsigned char __pad1;
+ unsigned char __pad2;
+#endif
+ int __cur_writer;
+};
+
+#define __PTHREAD_RWLOCK_ELISION_EXTRA 0
+
+#endif /* bits/pthreadtypes-arch.h */
diff --git a/sysdeps/arc/nptl/bits/semaphore.h b/sysdeps/arc/nptl/bits/semaphore.h
new file mode 100644
index 000000000000..588b957b4dcd
--- /dev/null
+++ b/sysdeps/arc/nptl/bits/semaphore.h
@@ -0,0 +1,32 @@
+/* Machine-specific POSIX semaphore type layouts. ARC version.
+ Copyright (C) 2002-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SEMAPHORE_H
+# error "Never use <bits/semaphore.h> directly; include <semaphore.h> instead."
+#endif
+
+#define __SIZEOF_SEM_T 16
+
+/* Value returned if `sem_open' failed. */
+#define SEM_FAILED ((sem_t *) 0)
+
+typedef union
+{
+ char __size[__SIZEOF_SEM_T];
+ long int __align;
+} sem_t;
diff --git a/sysdeps/arc/nptl/pthread_spin_lock.c b/sysdeps/arc/nptl/pthread_spin_lock.c
new file mode 100644
index 000000000000..e9b723c37ff6
--- /dev/null
+++ b/sysdeps/arc/nptl/pthread_spin_lock.c
@@ -0,0 +1,24 @@
+/* pthread spin-lock implementation for ARC.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define SPIN_LOCK_READS_BETWEEN_CMPXCHG 1000
+
+/* We can't use the normal "#include <nptl/pthread_spin_lock.c>" because
+ it will resolve to this very file. Using "sysdeps/.." as reference to the
+ top level directory does the job. */
+#include <sysdeps/../nptl/pthread_spin_lock.c>
diff --git a/sysdeps/arc/nptl/pthreaddef.h b/sysdeps/arc/nptl/pthreaddef.h
new file mode 100644
index 000000000000..af0a8daa4f92
--- /dev/null
+++ b/sysdeps/arc/nptl/pthreaddef.h
@@ -0,0 +1,32 @@
+/* pthread machine parameter definitions, ARC version.
+ Copyright (C) 2002-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* Default stack size. */
+#define ARCH_STACK_DEFAULT_SIZE (2 * 1024 * 1024)
+
+/* Required stack pointer alignment at beginning. */
+#define STACK_ALIGN 4
+
+/* Minimal stack size after allocating thread descriptor and guard size. */
+#define MINIMAL_REST_STACK 2048
+
+/* Alignment requirement for TCB. */
+#define TCB_ALIGNMENT 4
+
+/* Location of current stack frame. */
+#define CURRENT_STACK_FRAME __builtin_frame_address (0)
diff --git a/sysdeps/arc/nptl/tcb-offsets.sym b/sysdeps/arc/nptl/tcb-offsets.sym
new file mode 100644
index 000000000000..56950e0676ed
--- /dev/null
+++ b/sysdeps/arc/nptl/tcb-offsets.sym
@@ -0,0 +1,11 @@
+#include <sysdep.h>
+#include <tls.h>
+
+-- Derive offsets relative to the thread register.
+#define thread_offsetof(mem) (long)(offsetof(struct pthread, mem) - sizeof(struct pthread))
+
+MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads)
+TLS_PRE_TCB_SIZE sizeof (struct pthread)
+TLS_TCB_SIZE sizeof(tcbhead_t)
+
+PTHREAD_TID offsetof(struct pthread, tid)
diff --git a/sysdeps/arc/nptl/tls.h b/sysdeps/arc/nptl/tls.h
new file mode 100644
index 000000000000..0fa52b4afe37
--- /dev/null
+++ b/sysdeps/arc/nptl/tls.h
@@ -0,0 +1,151 @@
+/* Definition for thread-local data handling. NPTL/ARC version.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _ARC_NPTL_TLS_H
+#define _ARC_NPTL_TLS_H 1
+
+#include <dl-sysdep.h>
+
+#ifndef __ASSEMBLER__
+# include <stdbool.h>
+# include <stddef.h>
+# include <stdint.h>
+
+#include <dl-dtv.h>
+
+/* Get system call information. */
+# include <sysdep.h>
+
+/* The TLS blocks start right after the TCB. */
+# define TLS_DTV_AT_TP 1
+# define TLS_TCB_AT_TP 0
+
+/* Get the thread descriptor definition. */
+# include <nptl/descr.h>
+
+typedef struct
+{
+ dtv_t *dtv;
+ uintptr_t pointer_guard;
+} tcbhead_t;
+
+register struct pthread *__thread_self __asm__("r25");
+
+#define READ_THREAD_POINTER() ((void *) __thread_self)
+
+/* This is the size of the initial TCB. */
+# define TLS_INIT_TCB_SIZE sizeof (tcbhead_t)
+
+/* Alignment requirements for the initial TCB. */
+# define TLS_INIT_TCB_ALIGN __alignof__ (struct pthread)
+
+/* This is the size of the TCB. */
+#ifndef TLS_TCB_SIZE
+# define TLS_TCB_SIZE sizeof (tcbhead_t)
+#endif
+
+/* Alignment requirements for the TCB. */
+# define TLS_TCB_ALIGN __alignof__ (struct pthread)
+
+/* This is the size we need before TCB. */
+# define TLS_PRE_TCB_SIZE sizeof (struct pthread)
+
+/* Install the dtv pointer. The pointer passed is to the element with
+ index -1 which contain the length. */
+# define INSTALL_DTV(tcbp, dtvp) \
+ (((tcbhead_t *) (tcbp))->dtv = (dtvp) + 1)
+
+/* Install new dtv for current thread. */
+# define INSTALL_NEW_DTV(dtv) \
+ (THREAD_DTV() = (dtv))
+
+/* Return dtv of given thread descriptor. */
+# define GET_DTV(tcbp) \
+ (((tcbhead_t *) (tcbp))->dtv)
+
+/* Code to initially initialize the thread pointer. */
+# define TLS_INIT_TP(tcbp) \
+ ({ \
+ long result_var; \
+ __builtin_set_thread_pointer(tcbp); \
+ result_var = INTERNAL_SYSCALL (arc_settls, err, 1, (tcbp)); \
+ INTERNAL_SYSCALL_ERROR_P (result_var, err) \
+ ? "unknown error" : NULL; \
+ })
+
+/* Value passed to 'clone' for initialization of the thread register. */
+# define TLS_DEFINE_INIT_TP(tp, pd) void *tp = (pd) + 1
+
+/* Return the address of the dtv for the current thread. */
+# define THREAD_DTV() \
+ (((tcbhead_t *) __builtin_thread_pointer ())->dtv)
+
+/* Return the thread descriptor for the current thread. */
+# define THREAD_SELF \
+ ((struct pthread *)__builtin_thread_pointer () - 1)
+
+/* Magic for libthread_db to know how to do THREAD_SELF. */
+# define DB_THREAD_SELF \
+ CONST_THREAD_AREA (32, sizeof (struct pthread))
+
+/* Access to data in the thread descriptor is easy. */
+# define THREAD_GETMEM(descr, member) \
+ descr->member
+# define THREAD_GETMEM_NC(descr, member, idx) \
+ descr->member[idx]
+# define THREAD_SETMEM(descr, member, value) \
+ descr->member = (value)
+# define THREAD_SETMEM_NC(descr, member, idx, value) \
+ descr->member[idx] = (value)
+
+/* Get and set the global scope generation counter in struct pthread. */
+#define THREAD_GSCOPE_FLAG_UNUSED 0
+#define THREAD_GSCOPE_FLAG_USED 1
+#define THREAD_GSCOPE_FLAG_WAIT 2
+#define THREAD_GSCOPE_RESET_FLAG() \
+ do \
+ { int __res \
+ = atomic_exchange_rel (&THREAD_SELF->header.gscope_flag, \
+ THREAD_GSCOPE_FLAG_UNUSED); \
+ if (__res == THREAD_GSCOPE_FLAG_WAIT) \
+ lll_futex_wake (&THREAD_SELF->header.gscope_flag, 1, LLL_PRIVATE); \
+ } \
+ while (0)
+#define THREAD_GSCOPE_SET_FLAG() \
+ do \
+ { \
+ THREAD_SELF->header.gscope_flag = THREAD_GSCOPE_FLAG_USED; \
+ atomic_write_barrier (); \
+ } \
+ while (0)
+#define THREAD_GSCOPE_WAIT() \
+ GL(dl_wait_lookup_done) ()
+
+#else
+
+# include <tcb-offsets.h>
+
+# r25 is dedicated TLS register for ARC
+.macro THREAD_SELF reg
+ # struct pthread is just ahead of TCB
+ sub \reg, r25, TLS_PRE_TCB_SIZE
+.endm
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* tls.h */
diff --git a/sysdeps/arc/preconfigure b/sysdeps/arc/preconfigure
new file mode 100644
index 000000000000..8a24fcb18319
--- /dev/null
+++ b/sysdeps/arc/preconfigure
@@ -0,0 +1,6 @@
+case "$machine" in
+arc*)
+ base_machine=arc
+ machine=arc
+ ;;
+esac
diff --git a/sysdeps/arc/s_fma.c b/sysdeps/arc/s_fma.c
new file mode 100644
index 000000000000..d9613fa67cef
--- /dev/null
+++ b/sysdeps/arc/s_fma.c
@@ -0,0 +1 @@
+#include <soft-fp/fmadf4.c>
diff --git a/sysdeps/arc/s_fmaf.c b/sysdeps/arc/s_fmaf.c
new file mode 100644
index 000000000000..aa5c9b2d9136
--- /dev/null
+++ b/sysdeps/arc/s_fmaf.c
@@ -0,0 +1 @@
+#include <soft-fp/fmasf4.c>
diff --git a/sysdeps/arc/setjmp.S b/sysdeps/arc/setjmp.S
new file mode 100644
index 000000000000..c05b5ff0cfaa
--- /dev/null
+++ b/sysdeps/arc/setjmp.S
@@ -0,0 +1,64 @@
+/* setjmp for ARC.
+ Copyright (C) 1991-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include <sysdep.h>
+
+;@ r0 = jump buffer into which regs will be saved
+ENTRY(setjmp)
+ b.d __sigsetjmp
+ mov r1, 1 ; save signals
+END(setjmp)
+
+;@ r0 = jump buffer into which regs will be saved
+ENTRY(_setjmp)
+ b.d __sigsetjmp
+ mov r1, 0 ; don't save signals
+END(_setjmp)
+libc_hidden_def(_setjmp)
+
+;@ r0 = jump buffer into which regs will be saved
+;@ r1 = do we need to save signals
+ENTRY(__sigsetjmp)
+
+ st_s r13, [r0]
+ st_s r14, [r0,4]
+ st r15, [r0,8]
+ st r16, [r0,12]
+ st r17, [r0,16]
+ st r18, [r0,20]
+ st r19, [r0,24]
+ st r20, [r0,28]
+ st r21, [r0,32]
+ st r22, [r0,36]
+ st r23, [r0,40]
+ st r24, [r0,44]
+ st r25, [r0,48]
+ st fp, [r0,52]
+ st sp, [r0,56]
+
+ ; make a note of where longjmp will return to.
+ ; that will be right next to this setjmp call-site which will be
+ ; contained in blink, since "C" caller of this routine will do
+ ; a branch-n-link
+
+ st blink, [r0,60]
+ b __sigjmp_save
+
+END(__sigsetjmp)
+libc_hidden_def(__sigsetjmp)
diff --git a/sysdeps/arc/sfp-machine.h b/sysdeps/arc/sfp-machine.h
new file mode 100644
index 000000000000..95eefc187430
--- /dev/null
+++ b/sysdeps/arc/sfp-machine.h
@@ -0,0 +1,51 @@
+#define _FP_W_TYPE_SIZE 32
+#define _FP_W_TYPE unsigned long
+#define _FP_WS_TYPE signed long
+#define _FP_I_TYPE long
+
+#define _FP_MUL_MEAT_S(R,X,Y) \
+ _FP_MUL_MEAT_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_D(R,X,Y) \
+ _FP_MUL_MEAT_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_Q(R,X,Y) \
+ _FP_MUL_MEAT_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_MUL_MEAT_DW_S(R,X,Y) \
+ _FP_MUL_MEAT_DW_1_wide(_FP_WFRACBITS_S,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_D(R,X,Y) \
+ _FP_MUL_MEAT_DW_2_wide(_FP_WFRACBITS_D,R,X,Y,umul_ppmm)
+#define _FP_MUL_MEAT_DW_Q(R,X,Y) \
+ _FP_MUL_MEAT_DW_4_wide(_FP_WFRACBITS_Q,R,X,Y,umul_ppmm)
+
+#define _FP_DIV_MEAT_S(R,X,Y) _FP_DIV_MEAT_1_loop(S,R,X,Y)
+#define _FP_DIV_MEAT_D(R,X,Y) _FP_DIV_MEAT_2_udiv(D,R,X,Y)
+#define _FP_DIV_MEAT_Q(R,X,Y) _FP_DIV_MEAT_4_udiv(Q,R,X,Y)
+
+#define _FP_NANFRAC_S ((_FP_QNANBIT_S << 1) - 1)
+#define _FP_NANFRAC_D ((_FP_QNANBIT_D << 1) - 1), -1
+#define _FP_NANFRAC_Q ((_FP_QNANBIT_Q << 1) - 1), -1, -1, -1
+#define _FP_NANSIGN_S 0
+#define _FP_NANSIGN_D 0
+#define _FP_NANSIGN_Q 0
+
+#define _FP_KEEPNANFRACP 1
+#define _FP_QNANNEGATEDP 0
+
+/* This is arbitrarily taken from the PowerPC version. */
+#define _FP_CHOOSENAN(fs, wc, R, X, Y, OP) \
+ do { \
+ if ((_FP_FRAC_HIGH_RAW_##fs(X) & _FP_QNANBIT_##fs) \
+ && !(_FP_FRAC_HIGH_RAW_##fs(Y) & _FP_QNANBIT_##fs)) \
+ { \
+ R##_s = Y##_s; \
+ _FP_FRAC_COPY_##wc(R,Y); \
+ } \
+ else \
+ { \
+ R##_s = X##_s; \
+ _FP_FRAC_COPY_##wc(R,X); \
+ } \
+ R##_c = FP_CLS_NAN; \
+ } while (0)
+
+#define _FP_TININESS_AFTER_ROUNDING 0
diff --git a/sysdeps/arc/sotruss-lib.c b/sysdeps/arc/sotruss-lib.c
new file mode 100644
index 000000000000..0c03bb7953d9
--- /dev/null
+++ b/sysdeps/arc/sotruss-lib.c
@@ -0,0 +1,51 @@
+/* Override generic sotruss-lib.c to define actual functions for ARC.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define HAVE_ARCH_PLTENTER
+#define HAVE_ARCH_PLTEXIT
+
+#include <elf/sotruss-lib.c>
+
+ElfW(Addr)
+la_arc_gnu_pltenter (ElfW(Sym) *sym __attribute__ ((unused)),
+ unsigned int ndx __attribute__ ((unused)),
+ uintptr_t *refcook, uintptr_t *defcook,
+ La_arc_regs *regs, unsigned int *flags,
+ const char *symname, long int *framesizep)
+{
+ print_enter (refcook, defcook, symname,
+ regs->lr_reg[0], regs->lr_reg[1], regs->lr_reg[2],
+ *flags);
+
+ /* No need to copy anything, we will not need the parameters in any case. */
+ *framesizep = 0;
+
+ return sym->st_value;
+}
+
+unsigned int
+la_arc_gnu_pltexit (ElfW(Sym) *sym, unsigned int ndx, uintptr_t *refcook,
+ uintptr_t *defcook,
+ const struct La_arc_regs *inregs,
+ struct La_arc_retval *outregs, const char *symname)
+{
+ print_exit (refcook, defcook, symname, outregs->lrv_reg[0]);
+
+ return 0;
+}
diff --git a/sysdeps/arc/stackinfo.h b/sysdeps/arc/stackinfo.h
new file mode 100644
index 000000000000..7d8c38715bbf
--- /dev/null
+++ b/sysdeps/arc/stackinfo.h
@@ -0,0 +1,33 @@
+/* Stack environment definitions for ARC.
+ Copyright (C) 2012-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* This file contains a bit of information about the stack allocation
+ of the processor. */
+
+#ifndef _STACKINFO_H
+#define _STACKINFO_H 1
+
+#include <elf.h>
+
+/* On ARC the stack grows down. */
+#define _STACK_GROWS_DOWN 1
+
+/* Default to a non-executable stack. */
+#define DEFAULT_STACK_PERMS (PF_R|PF_W)
+
+#endif /* stackinfo.h */
diff --git a/sysdeps/arc/start.S b/sysdeps/arc/start.S
new file mode 100644
index 000000000000..911f7cd3b056
--- /dev/null
+++ b/sysdeps/arc/start.S
@@ -0,0 +1,81 @@
+/* Startup code for ARC
+ Copyright (C) 1995-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ In addition to the permissions in the GNU Lesser General Public
+ License, the Free Software Foundation gives you unlimited
+ permission to link the compiled version of this file with other
+ programs, and to distribute those programs without any restriction
+ coming from the use of this file. (The GNU Lesser General Public
+ License restrictions do apply in other respects; for example, they
+ cover modification of the file, and distribution when not linked
+ into another program.)
+
+ Note that people who make modified versions of this file are not
+ obligated to grant this special exception for their modified
+ versions; it is their choice whether to do so. The GNU Lesser
+ General Public License gives permission to release a modified
+ version without this exception; this exception also makes it
+ possible to release a modified version which carries forward this
+ exception.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+/* When we enter this piece of code, the program stack looks like this:
+ argc argument counter (integer)
+ argv[0] program name (pointer)
+ argv[1...N] program args (pointers)
+ argv[argc-1] end of args (integer)
+ NULL
+ env[0...N] environment variables (pointers)
+ NULL
+*/
+ .text
+ .align 4
+ .global _start
+ .type _start,@function
+_start:
+ mov fp, 0
+ ld_s r1, [sp] ; argc
+
+ mov_s r5, r0 ; rltd_fini
+ add_s r2, sp, 4 ; argv
+ and sp, sp, -8
+ mov r6, sp
+
+#ifdef SHARED
+ ld r0, [pcl, @main@gotpc]
+ ld r3, [pcl, @__libc_csu_init@gotpc]
+ ld r4, [pcl, @__libc_csu_fini@gotpc]
+ bl __libc_start_main@plt
+#else
+ mov_s r0, main
+ mov_s r3, __libc_csu_init
+ mov r4, __libc_csu_fini
+ bl __libc_start_main
+#endif
+ /* __libc_start_main (main, argc, argv, init, fini, rtld_fini, stack_end) */
+
+ /* Should never get here.... */
+ flag 1
+
+/* Define a symbol for the first piece of initialized data. */
+ .data
+ .globl __data_start
+__data_start:
+ .long 0
+ .weak data_start
+ data_start = __data_start
diff --git a/sysdeps/arc/sysdep.h b/sysdeps/arc/sysdep.h
new file mode 100644
index 000000000000..d57f1c0c60a4
--- /dev/null
+++ b/sysdeps/arc/sysdep.h
@@ -0,0 +1,49 @@
+/* Assembler macros for ARC.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/sysdep.h>
+
+#ifdef __ASSEMBLER__
+
+/* Syntactic details of assembler.
+ * One weirness is ; is not newline but comment
+ * Although # is also for comment
+ */
+
+#define ASM_SIZE_DIRECTIVE(name) .size name,.-name
+
+#define ENTRY(name) \
+ .align 4 ASM_LINE_SEP \
+ .globl C_SYMBOL_NAME(name) ASM_LINE_SEP \
+ .type C_SYMBOL_NAME(name),%function ASM_LINE_SEP \
+ C_LABEL(name) ASM_LINE_SEP \
+ CALL_MCOUNT
+
+#undef END
+#define END(name) \
+ ASM_SIZE_DIRECTIVE(name)
+
+#ifdef SHARED
+#define PLTJMP(_x) _x##@plt
+#else
+#define PLTJMP(_x) _x
+#endif
+
+# define CALL_MCOUNT /* Do nothing for now. */
+
+#endif /* __ASSEMBLER__ */
diff --git a/sysdeps/arc/tls-macros.h b/sysdeps/arc/tls-macros.h
new file mode 100644
index 000000000000..51855edef6e7
--- /dev/null
+++ b/sysdeps/arc/tls-macros.h
@@ -0,0 +1,29 @@
+/* Macros to support TLS testing in times of missing compiler support. */
+
+/* For now */
+#define TLS_LD(x) TLS_IE(x)
+
+#define TLS_GD(x) \
+ ({ int *__result; \
+ __asm__ ("add r0, pcl, @" #x "@tlsgd \n" \
+ ".tls_gd_ld " #x "`bl __tls_get_addr@plt \n" \
+ "mov %0, r0 \n" \
+ : "=&r" (__result) \
+ ::"r0","r1","r2","r3","r4","r5","r6","r7", \
+ "r8","r9","r10","r11","r12"); \
+ __result; })
+
+#define TLS_LE(x) \
+ ({ int *__result; \
+ void *tp = __builtin_thread_pointer(); \
+ __asm__ ("add %0, %1, @" #x "@tpoff \n" \
+ : "=r" (__result) : "r"(tp)); \
+ __result; })
+
+#define TLS_IE(x) \
+ ({ int *__result; \
+ void *tp = __builtin_thread_pointer(); \
+ __asm__ ("ld %0, [pcl, @" #x "@tlsie] \n" \
+ "add %0, %1, %0 \n" \
+ : "=&r" (__result) : "r" (tp)); \
+ __result; })
diff --git a/sysdeps/arc/tst-audit.h b/sysdeps/arc/tst-audit.h
new file mode 100644
index 000000000000..16c7028529b4
--- /dev/null
+++ b/sysdeps/arc/tst-audit.h
@@ -0,0 +1,23 @@
+/* Definitions for testing PLT entry/exit auditing. ARC version.
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#define pltenter la_arc_gnu_pltenter
+#define pltexit la_arc_gnu_pltexit
+#define La_regs La_arc_regs
+#define La_retval La_arc_retval
+#define int_retval lrv_reg[0]
diff --git a/sysdeps/unix/sysv/linux/arc/Implies b/sysdeps/unix/sysv/linux/arc/Implies
new file mode 100644
index 000000000000..7f739a0340b6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Implies
@@ -0,0 +1,3 @@
+arc/nptl
+unix/sysv/linux/generic/wordsize-32
+unix/sysv/linux/generic
diff --git a/sysdeps/unix/sysv/linux/arc/Makefile b/sysdeps/unix/sysv/linux/arc/Makefile
new file mode 100644
index 000000000000..c22425f08744
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Makefile
@@ -0,0 +1,9 @@
+ifeq ($(subdir),stdlib)
+gen-as-const-headers += ucontext_i.sym
+endif
+
+ifeq ($(subdir),misc)
+# MIPS/Tile-style cacheflush routine
+sysdep_headers += sys/cachectl.h
+sysdep_routines += cacheflush
+endif
diff --git a/sysdeps/unix/sysv/linux/arc/Versions b/sysdeps/unix/sysv/linux/arc/Versions
new file mode 100644
index 000000000000..e42c85f57594
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/Versions
@@ -0,0 +1,6 @@
+libc {
+ GLIBC_2.21 {
+ _flush_cache;
+ cacheflush;
+ }
+}
diff --git a/sysdeps/unix/sysv/linux/arc/arch-fork.h b/sysdeps/unix/sysv/linux/arc/arch-fork.h
new file mode 100644
index 000000000000..3ab83156f5a5
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/arch-fork.h
@@ -0,0 +1,35 @@
+/* ARCH_FORK definition for Linux fork implementation. ARC version.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sched.h>
+#include <signal.h>
+#include <sysdep.h>
+#include <tls.h>
+
+/* Argument 1 - Clone flags.
+ 2 - Child stack pointer.
+ 3 - Parent tid pointer.
+ 4 - New TLS area pointer.
+ 5 - Child tid pointer. */
+
+/* clone syscall in kernel (ABI: CONFIG_CLONE_BACKWARDS) */
+
+#define ARCH_FORK() \
+ INLINE_SYSCALL (clone, 5, \
+ CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID | SIGCHLD, \
+ NULL, NULL, NULL, &THREAD_SELF->tid)
diff --git a/sysdeps/unix/sysv/linux/arc/bits/mman.h b/sysdeps/unix/sysv/linux/arc/bits/mman.h
new file mode 100644
index 000000000000..fa43ea427a5f
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/bits/mman.h
@@ -0,0 +1,42 @@
+/* Definitions for POSIX memory map interface. Linux/ARC version.
+
+ Copyright (C) 1997-2015 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_MMAN_H
+# error "Never use <bits/mman.h> directly; include <sys/mman.h> instead."
+#endif
+
+/* The following definitions basically come from the kernel headers.
+ But the kernel header is not namespace clean. */
+
+/* These are Linux-specific. */
+#ifdef __USE_MISC
+# define MAP_GROWSDOWN 0x00100 /* Stack-like segment. */
+# define MAP_DENYWRITE 0x00800 /* ETXTBSY */
+# define MAP_EXECUTABLE 0x01000 /* Mark it as an executable. */
+# define MAP_LOCKED 0x02000 /* Lock the mapping. */
+# define MAP_NORESERVE 0x04000 /* Don't check for reservations. */
+# define MAP_POPULATE 0x08000 /* Populate (prefault) pagetables. */
+# define MAP_NONBLOCK 0x10000 /* Do not block on IO. */
+# define MAP_STACK 0x20000 /* Allocation is for a stack. */
+# define MAP_HUGETLB 0x40000 /* Create huge page mapping. */
+#endif
+
+/* Include generic Linux declarations. */
+#include <bits/mman-linux.h>
diff --git a/sysdeps/unix/sysv/linux/arc/bits/sigaction.h b/sysdeps/unix/sysv/linux/arc/bits/sigaction.h
new file mode 100644
index 000000000000..9795e9998855
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/bits/sigaction.h
@@ -0,0 +1,78 @@
+/* The proper definitions for Linux's sigaction.
+ Copyright (C) 1993-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SIGNAL_H
+# error "Never include <bits/sigaction.h> directly; use <signal.h> instead."
+#endif
+
+/* Structure describing the action to be taken when a signal arrives. */
+struct sigaction
+ {
+ /* Signal handler. */
+#ifdef __USE_POSIX199309
+ union
+ {
+ /* Used if SA_SIGINFO is not set. */
+ __sighandler_t sa_handler;
+ /* Used if SA_SIGINFO is set. */
+ void (*sa_sigaction) (int, siginfo_t *, void *);
+ }
+ __sigaction_handler;
+# define sa_handler __sigaction_handler.sa_handler
+# define sa_sigaction __sigaction_handler.sa_sigaction
+#else
+ __sighandler_t sa_handler;
+#endif
+
+ /* Special flags. */
+ unsigned long sa_flags;
+
+ /* Restore handler. */
+ void (*sa_restorer) (void);
+
+ /* Additional set of signals to be blocked. */
+ __sigset_t sa_mask;
+ };
+
+/* Bits in `sa_flags'. */
+#define SA_NOCLDSTOP 1 /* Don't send SIGCHLD when children stop. */
+#define SA_NOCLDWAIT 2 /* Don't create zombie on child death. */
+#define SA_SIGINFO 4 /* Invoke signal-catching function with
+ three arguments instead of one. */
+#if defined __USE_UNIX98 || defined __USE_MISC
+# define SA_ONSTACK 0x08000000 /* Use signal stack by using `sa_restorer'. */
+#endif
+#if defined __USE_UNIX98 || defined __USE_XOPEN2K8
+# define SA_RESTART 0x10000000 /* Restart syscall on signal return. */
+# define SA_NODEFER 0x40000000 /* Don't automatically block the signal when
+ its handler is being executed. */
+# define SA_RESETHAND 0x80000000 /* Reset to SIG_DFL on entry to handler. */
+#endif
+#ifdef __USE_MISC
+# define SA_INTERRUPT 0x20000000 /* Historical no-op. */
+
+/* Some aliases for the SA_ constants. */
+# define SA_NOMASK SA_NODEFER
+# define SA_ONESHOT SA_RESETHAND
+# define SA_STACK SA_ONSTACK
+#endif
+
+/* Values for the HOW argument to `sigprocmask'. */
+#define SIG_BLOCK 0 /* Block signals. */
+#define SIG_UNBLOCK 1 /* Unblock signals. */
+#define SIG_SETMASK 2 /* Set the set of blocked signals. */
diff --git a/sysdeps/unix/sysv/linux/arc/c++-types.data b/sysdeps/unix/sysv/linux/arc/c++-types.data
new file mode 100644
index 000000000000..303f4570c8ee
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/c++-types.data
@@ -0,0 +1,67 @@
+blkcnt64_t:x
+blkcnt_t:l
+blksize_t:i
+caddr_t:Pc
+clockid_t:i
+clock_t:l
+daddr_t:i
+dev_t:y
+fd_mask:l
+fsblkcnt64_t:y
+fsblkcnt_t:m
+fsfilcnt64_t:y
+fsfilcnt_t:m
+fsid_t:8__fsid_t
+gid_t:j
+id_t:j
+ino64_t:y
+ino_t:m
+int16_t:s
+int32_t:i
+int64_t:x
+int8_t:a
+intptr_t:i
+key_t:i
+loff_t:x
+mode_t:j
+nlink_t:j
+off64_t:x
+off_t:l
+pid_t:i
+pthread_attr_t:14pthread_attr_t
+pthread_barrier_t:17pthread_barrier_t
+pthread_barrierattr_t:21pthread_barrierattr_t
+pthread_cond_t:14pthread_cond_t
+pthread_condattr_t:18pthread_condattr_t
+pthread_key_t:j
+pthread_mutex_t:15pthread_mutex_t
+pthread_mutexattr_t:19pthread_mutexattr_t
+pthread_once_t:i
+pthread_rwlock_t:16pthread_rwlock_t
+pthread_rwlockattr_t:20pthread_rwlockattr_t
+pthread_spinlock_t:i
+pthread_t:m
+quad_t:x
+register_t:i
+rlim64_t:y
+rlim_t:m
+sigset_t:10__sigset_t
+size_t:j
+socklen_t:j
+ssize_t:i
+suseconds_t:l
+time_t:l
+u_char:h
+uid_t:j
+uint:j
+u_int:j
+u_int16_t:t
+u_int32_t:j
+u_int64_t:y
+u_int8_t:h
+ulong:m
+u_long:m
+u_quad_t:y
+useconds_t:j
+ushort:t
+u_short:t
diff --git a/sysdeps/unix/sysv/linux/arc/cacheflush.c b/sysdeps/unix/sysv/linux/arc/cacheflush.c
new file mode 100644
index 000000000000..9ea072a28650
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/cacheflush.c
@@ -0,0 +1,29 @@
+/* cacheflush system call for ARC Linux.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <stddef.h>
+#include <unistd.h>
+
+/* Flush cache(s). */
+int
+_flush_cache (char *addr, const int nbytes, const int op)
+{
+ return INLINE_SYSCALL (cacheflush, 3, addr, nbytes, op);
+}
+weak_alias (_flush_cache, cacheflush)
diff --git a/sysdeps/unix/sysv/linux/arc/clone.S b/sysdeps/unix/sysv/linux/arc/clone.S
new file mode 100644
index 000000000000..61c889bfbd60
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/clone.S
@@ -0,0 +1,97 @@
+/* clone() implementation for ARC.
+ Copyright (C) 2008-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+ Contributed by Andrew Jenner <andrew@codesourcery.com>, 2008.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+
+#include <sysdep.h>
+#define _ERRNO_H 1
+#include <bits/errno.h>
+#include <tcb-offsets.h>
+
+#define CLONE_SETTLS 0x00080000
+
+; int clone(int (*fn)(void *), void *child_stack,
+; int flags, void *arg, ...
+; /* pid_t *ptid, struct user_desc *tls, pid_t *ctid */);
+;
+; NOTE: I'm assuming that the last 3 args are NOT var-args and in case all
+; 3 are not relevant, caller will nevertheless pass those as NULL.
+; Current (Jul 2012) upstream powerpc/clone.S assumes similarly.
+; Our LTP (from 2007) doesn't seem to have tests to prove otherwise
+
+; clone syscall in kernel (ABI: CONFIG_CLONE_BACKWARDS)
+;
+; int sys_clone(unsigned long clone_flags,
+; unsigned long newsp,
+; int __user *parent_tidptr,
+; void *tls,
+; int __user *child_tidptr)
+
+ENTRY(__clone)
+ cmp r0, 0 ; @fn can't be NULL
+ cmp.ne r1, 0 ; @child_stack can't be NULL
+ bz .L__sys_err
+
+ ; save some of the orig args
+ ; r0 containg @fn will be clobbered AFTER syscall (with ret val)
+ ; rest are clobbered BEFORE syscall due to different arg ordering
+ mov r10, r0 ; @fn
+ mov r11, r3 ; @args
+ mov r12, r2 ; @clone_flags
+ mov r9, r5 ; @tls
+
+ ; adjust libc args for syscall
+
+ mov r0, r2 ; libc @flags is 1st syscall arg
+ mov r2, r4 ; libc @ptid
+ mov r3, r5 ; libc @tls
+ mov r4, r6 ; libc @ctid
+ mov r8, __NR_clone
+ ARC_TRAP_INSN
+
+ cmp r0, 0 ; return code : 0 new process, !0 parent
+ blt .L__sys_err2 ; < 0 (signed) error
+ jnz [blink] ; Parent returns
+
+ ; ----- child starts here ---------
+
+ ; Setup TP register (since kernel doesn't do that)
+ and.f 0, r12, CLONE_SETTLS
+ mov.nz r25, r9
+
+ ; child jumps off to @fn with @arg as argument, and returns here
+ jl.d [r10]
+ mov r0, r11
+
+ ; falls thru to _exit() with result from @fn (already in r0)
+ b HIDDEN_JUMPTARGET(_exit)
+
+.L__sys_err:
+ mov r0, -EINVAL
+.L__sys_err2:
+ ; (1) No need to make -ve kernel error code as positive errno
+ ; __syscall_error expects the -ve error code returned by kernel
+ ; (2) r0 still had orig -ve kernel error code
+ ; (3) Tail call to __syscall_error so we dont have to come back
+ ; here hence instead of jmp-n-link (reg push/pop) we do jmp
+ ; (4) No need to route __syscall_error via PLT, B is inherently
+ ; position independent
+ b __syscall_error
+PSEUDO_END (__clone)
+libc_hidden_def (__clone)
+weak_alias (__clone, clone)
diff --git a/sysdeps/unix/sysv/linux/arc/configure b/sysdeps/unix/sysv/linux/arc/configure
new file mode 100644
index 000000000000..f74fa7cb0259
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/configure
@@ -0,0 +1,4 @@
+# This file is generated from configure.in by Autoconf. DO NOT EDIT!
+ # Local configure fragment for sysdeps/unix/sysv/linux/arc.
+
+arch_minimum_kernel=3.9.0
diff --git a/sysdeps/unix/sysv/linux/arc/configure.ac b/sysdeps/unix/sysv/linux/arc/configure.ac
new file mode 100644
index 000000000000..a9528032d32a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/configure.ac
@@ -0,0 +1,4 @@
+GLIBC_PROVIDES dnl See aclocal.m4 in the top level source directory.
+# Local configure fragment for sysdeps/unix/sysv/linux/arc.
+
+arch_minimum_kernel=3.9.0
diff --git a/sysdeps/unix/sysv/linux/arc/kernel-features.h b/sysdeps/unix/sysv/linux/arc/kernel-features.h
new file mode 100644
index 000000000000..e78ee9dacbd2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/kernel-features.h
@@ -0,0 +1,31 @@
+/* Set flags signalling availability of kernel features based on given
+ kernel version number.
+
+ Copyright (C) 2009-2015 Free Software Foundation, Inc.
+
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <linux/version.h>
+
+/* The minimum supported kernel version for ARC is 3.9,
+ guaranteeing many kernel features. */
+
+#define __ASSUME_ACCEPT4_SYSCALL 1
+#define __ASSUME_RECVMMSG_SYSCALL 1
+#define __ASSUME_SENDMMSG_SYSCALL 1
+
+#include_next <kernel-features.h>
diff --git a/sysdeps/unix/sysv/linux/arc/ld.abilist b/sysdeps/unix/sysv/linux/arc/ld.abilist
new file mode 100644
index 000000000000..6001f2e98402
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/ld.abilist
@@ -0,0 +1,12 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ __libc_memalign F
+ __libc_stack_end D 0x4
+ __stack_chk_guard D 0x4
+ __tls_get_addr F
+ _dl_mcount F
+ _r_debug D 0x14
+ calloc F
+ free F
+ malloc F
+ realloc F
diff --git a/sysdeps/unix/sysv/linux/arc/ldconfig.h b/sysdeps/unix/sysv/linux/arc/ldconfig.h
new file mode 100644
index 000000000000..d5d3646f5b1d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/ldconfig.h
@@ -0,0 +1,24 @@
+/* Copyright (C) 2001-2016 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdeps/generic/ldconfig.h>
+
+#define SYSDEP_KNOWN_INTERPRETER_NAMES \
+ { "/lib/ld-linux.so.2", FLAG_ELF_LIBC6 },
+#define SYSDEP_KNOWN_LIBRARY_NAMES \
+ { "libc.so.6", FLAG_ELF_LIBC6 }, \
+ { "libm.so.6", FLAG_ELF_LIBC6 },
diff --git a/sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist b/sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist
new file mode 100644
index 000000000000..0562003fff3c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libBrokenLocale.abilist
@@ -0,0 +1,3 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ __ctype_get_mb_cur_max F
diff --git a/sysdeps/unix/sysv/linux/arc/libanl.abilist b/sysdeps/unix/sysv/linux/arc/libanl.abilist
new file mode 100644
index 000000000000..070f45aeac08
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libanl.abilist
@@ -0,0 +1,6 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ gai_cancel F
+ gai_error F
+ gai_suspend F
+ getaddrinfo_a F
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
new file mode 100644
index 000000000000..2d8539f9aaf7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -0,0 +1,2123 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ _Exit F
+ _IO_2_1_stderr_ D 0x98
+ _IO_2_1_stdin_ D 0x98
+ _IO_2_1_stdout_ D 0x98
+ _IO_adjust_column F
+ _IO_adjust_wcolumn F
+ _IO_default_doallocate F
+ _IO_default_finish F
+ _IO_default_pbackfail F
+ _IO_default_uflow F
+ _IO_default_xsgetn F
+ _IO_default_xsputn F
+ _IO_do_write F
+ _IO_doallocbuf F
+ _IO_fclose F
+ _IO_fdopen F
+ _IO_feof F
+ _IO_ferror F
+ _IO_fflush F
+ _IO_fgetpos F
+ _IO_fgetpos64 F
+ _IO_fgets F
+ _IO_file_attach F
+ _IO_file_close F
+ _IO_file_close_it F
+ _IO_file_doallocate F
+ _IO_file_finish F
+ _IO_file_fopen F
+ _IO_file_init F
+ _IO_file_jumps D 0x54
+ _IO_file_open F
+ _IO_file_overflow F
+ _IO_file_read F
+ _IO_file_seek F
+ _IO_file_seekoff F
+ _IO_file_setbuf F
+ _IO_file_stat F
+ _IO_file_sync F
+ _IO_file_underflow F
+ _IO_file_write F
+ _IO_file_xsputn F
+ _IO_flockfile F
+ _IO_flush_all F
+ _IO_flush_all_linebuffered F
+ _IO_fopen F
+ _IO_fprintf F
+ _IO_fputs F
+ _IO_fread F
+ _IO_free_backup_area F
+ _IO_free_wbackup_area F
+ _IO_fsetpos F
+ _IO_fsetpos64 F
+ _IO_ftell F
+ _IO_ftrylockfile F
+ _IO_funlockfile F
+ _IO_fwrite F
+ _IO_getc F
+ _IO_getline F
+ _IO_getline_info F
+ _IO_gets F
+ _IO_init F
+ _IO_init_marker F
+ _IO_init_wmarker F
+ _IO_iter_begin F
+ _IO_iter_end F
+ _IO_iter_file F
+ _IO_iter_next F
+ _IO_least_wmarker F
+ _IO_link_in F
+ _IO_list_all D 0x4
+ _IO_list_lock F
+ _IO_list_resetlock F
+ _IO_list_unlock F
+ _IO_marker_delta F
+ _IO_marker_difference F
+ _IO_padn F
+ _IO_peekc_locked F
+ _IO_popen F
+ _IO_printf F
+ _IO_proc_close F
+ _IO_proc_open F
+ _IO_putc F
+ _IO_puts F
+ _IO_remove_marker F
+ _IO_seekmark F
+ _IO_seekoff F
+ _IO_seekpos F
+ _IO_seekwmark F
+ _IO_setb F
+ _IO_setbuffer F
+ _IO_setvbuf F
+ _IO_sgetn F
+ _IO_sprintf F
+ _IO_sputbackc F
+ _IO_sputbackwc F
+ _IO_sscanf F
+ _IO_str_init_readonly F
+ _IO_str_init_static F
+ _IO_str_overflow F
+ _IO_str_pbackfail F
+ _IO_str_seekoff F
+ _IO_str_underflow F
+ _IO_sungetc F
+ _IO_sungetwc F
+ _IO_switch_to_get_mode F
+ _IO_switch_to_main_wget_area F
+ _IO_switch_to_wbackup_area F
+ _IO_switch_to_wget_mode F
+ _IO_un_link F
+ _IO_ungetc F
+ _IO_unsave_markers F
+ _IO_unsave_wmarkers F
+ _IO_vfprintf F
+ _IO_vfscanf F
+ _IO_vsprintf F
+ _IO_wdefault_doallocate F
+ _IO_wdefault_finish F
+ _IO_wdefault_pbackfail F
+ _IO_wdefault_uflow F
+ _IO_wdefault_xsgetn F
+ _IO_wdefault_xsputn F
+ _IO_wdo_write F
+ _IO_wdoallocbuf F
+ _IO_wfile_jumps D 0x54
+ _IO_wfile_overflow F
+ _IO_wfile_seekoff F
+ _IO_wfile_sync F
+ _IO_wfile_underflow F
+ _IO_wfile_xsputn F
+ _IO_wmarker_delta F
+ _IO_wsetb F
+ ___brk_addr D 0x4
+ __adddf3 F
+ __addsf3 F
+ __adjtimex F
+ __after_morecore_hook D 0x4
+ __argz_count F
+ __argz_next F
+ __argz_stringify F
+ __asprintf F
+ __asprintf_chk F
+ __assert F
+ __assert_fail F
+ __assert_perror_fail F
+ __backtrace F
+ __backtrace_symbols F
+ __backtrace_symbols_fd F
+ __bsd_getpgrp F
+ __bzero F
+ __check_rhosts_file D 0x4
+ __chk_fail F
+ __clone F
+ __close F
+ __cmsg_nxthdr F
+ __confstr_chk F
+ __connect F
+ __ctype_b_loc F
+ __ctype_get_mb_cur_max F
+ __ctype_tolower_loc F
+ __ctype_toupper_loc F
+ __curbrk D 0x4
+ __cxa_at_quick_exit F
+ __cxa_atexit F
+ __cxa_finalize F
+ __cxa_thread_atexit_impl F
+ __cyg_profile_func_enter F
+ __cyg_profile_func_exit F
+ __daylight D 0x4
+ __dcgettext F
+ __default_morecore F
+ __dgettext F
+ __divdf3 F
+ __divsf3 F
+ __dprintf_chk F
+ __dup2 F
+ __duplocale F
+ __endmntent F
+ __environ D 0x4
+ __eqdf2 F
+ __eqsf2 F
+ __errno_location F
+ __extendsfdf2 F
+ __fbufsize F
+ __fcntl F
+ __fdelt_chk F
+ __fdelt_warn F
+ __ffs F
+ __fgets_chk F
+ __fgets_unlocked_chk F
+ __fgetws_chk F
+ __fgetws_unlocked_chk F
+ __finite F
+ __finitef F
+ __finitel F
+ __fixdfdi F
+ __fixdfsi F
+ __fixsfdi F
+ __fixsfsi F
+ __fixunsdfdi F
+ __fixunsdfsi F
+ __fixunssfdi F
+ __fixunssfsi F
+ __flbf F
+ __floatdidf F
+ __floatdisf F
+ __floatsidf F
+ __floatsisf F
+ __floatundidf F
+ __floatundisf F
+ __floatunsidf F
+ __floatunsisf F
+ __fork F
+ __fpending F
+ __fprintf_chk F
+ __fpu_control D 0x4
+ __fpurge F
+ __fread_chk F
+ __fread_unlocked_chk F
+ __freadable F
+ __freading F
+ __free_hook D 0x4
+ __freelocale F
+ __fsetlocking F
+ __fwprintf_chk F
+ __fwritable F
+ __fwriting F
+ __fxstat F
+ __fxstat64 F
+ __fxstatat F
+ __fxstatat64 F
+ __gedf2 F
+ __gesf2 F
+ __getauxval F
+ __getcwd_chk F
+ __getdelim F
+ __getdomainname_chk F
+ __getgroups_chk F
+ __gethostname_chk F
+ __getlogin_r_chk F
+ __getmntent_r F
+ __getpagesize F
+ __getpgid F
+ __getpid F
+ __gets_chk F
+ __gettimeofday F
+ __getwd_chk F
+ __gmtime_r F
+ __gtdf2 F
+ __gtsf2 F
+ __h_errno_location F
+ __isalnum_l F
+ __isalpha_l F
+ __isascii_l F
+ __isblank_l F
+ __iscntrl_l F
+ __isctype F
+ __isdigit_l F
+ __isgraph_l F
+ __isinf F
+ __isinff F
+ __isinfl F
+ __islower_l F
+ __isnan F
+ __isnanf F
+ __isnanl F
+ __isoc99_fscanf F
+ __isoc99_fwscanf F
+ __isoc99_scanf F
+ __isoc99_sscanf F
+ __isoc99_swscanf F
+ __isoc99_vfscanf F
+ __isoc99_vfwscanf F
+ __isoc99_vscanf F
+ __isoc99_vsscanf F
+ __isoc99_vswscanf F
+ __isoc99_vwscanf F
+ __isoc99_wscanf F
+ __isprint_l F
+ __ispunct_l F
+ __isspace_l F
+ __isupper_l F
+ __iswalnum_l F
+ __iswalpha_l F
+ __iswblank_l F
+ __iswcntrl_l F
+ __iswctype F
+ __iswctype_l F
+ __iswdigit_l F
+ __iswgraph_l F
+ __iswlower_l F
+ __iswprint_l F
+ __iswpunct_l F
+ __iswspace_l F
+ __iswupper_l F
+ __iswxdigit_l F
+ __isxdigit_l F
+ __ivaliduser F
+ __key_decryptsession_pk_LOCAL D 0x4
+ __key_encryptsession_pk_LOCAL D 0x4
+ __key_gendes_LOCAL D 0x4
+ __ledf2 F
+ __lesf2 F
+ __libc_allocate_rtsig F
+ __libc_calloc F
+ __libc_current_sigrtmax F
+ __libc_current_sigrtmin F
+ __libc_free F
+ __libc_freeres F
+ __libc_init_first F
+ __libc_mallinfo F
+ __libc_malloc F
+ __libc_mallopt F
+ __libc_memalign F
+ __libc_pvalloc F
+ __libc_realloc F
+ __libc_sa_len F
+ __libc_start_main F
+ __libc_valloc F
+ __longjmp_chk F
+ __lseek F
+ __ltdf2 F
+ __ltsf2 F
+ __lxstat F
+ __lxstat64 F
+ __malloc_hook D 0x4
+ __malloc_initialize_hook D 0x4
+ __mbrlen F
+ __mbrtowc F
+ __mbsnrtowcs_chk F
+ __mbsrtowcs_chk F
+ __mbstowcs_chk F
+ __memalign_hook D 0x4
+ __memcpy_chk F
+ __memmove_chk F
+ __mempcpy F
+ __mempcpy_chk F
+ __mempcpy_small F
+ __memset_chk F
+ __monstartup F
+ __morecore D 0x4
+ __muldf3 F
+ __mulsf3 F
+ __nanosleep F
+ __nedf2 F
+ __negdf2 F
+ __negsf2 F
+ __nesf2 F
+ __newlocale F
+ __nl_langinfo_l F
+ __nss_configure_lookup F
+ __nss_database_lookup F
+ __nss_group_lookup F
+ __nss_hostname_digits_dots F
+ __nss_hosts_lookup F
+ __nss_next F
+ __nss_passwd_lookup F
+ __obstack_printf_chk F
+ __obstack_vprintf_chk F
+ __open F
+ __open64 F
+ __open64_2 F
+ __open_2 F
+ __openat64_2 F
+ __openat_2 F
+ __overflow F
+ __pipe F
+ __poll F
+ __poll_chk F
+ __posix_getopt F
+ __ppoll_chk F
+ __pread64 F
+ __pread64_chk F
+ __pread_chk F
+ __printf_chk F
+ __printf_fp F
+ __profile_frequency F
+ __progname D 0x4
+ __progname_full D 0x4
+ __ptsname_r_chk F
+ __pwrite64 F
+ __rawmemchr F
+ __rcmd_errstr D 0x4
+ __read F
+ __read_chk F
+ __readlink_chk F
+ __readlinkat_chk F
+ __realloc_hook D 0x4
+ __realpath_chk F
+ __recv_chk F
+ __recvfrom_chk F
+ __register_atfork F
+ __res_init F
+ __res_nclose F
+ __res_ninit F
+ __res_randomid F
+ __res_state F
+ __rpc_thread_createerr F
+ __rpc_thread_svc_fdset F
+ __rpc_thread_svc_max_pollfd F
+ __rpc_thread_svc_pollfd F
+ __sbrk F
+ __sched_cpualloc F
+ __sched_cpucount F
+ __sched_cpufree F
+ __sched_get_priority_max F
+ __sched_get_priority_min F
+ __sched_getparam F
+ __sched_getscheduler F
+ __sched_setscheduler F
+ __sched_yield F
+ __select F
+ __setmntent F
+ __setpgid F
+ __sigaction F
+ __sigaddset F
+ __sigdelset F
+ __sigismember F
+ __signbit F
+ __signbitf F
+ __sigpause F
+ __sigsetjmp F
+ __sigsuspend F
+ __snprintf_chk F
+ __sprintf_chk F
+ __stack_chk_fail F
+ __statfs F
+ __stpcpy F
+ __stpcpy_chk F
+ __stpcpy_small F
+ __stpncpy F
+ __stpncpy_chk F
+ __strcasecmp F
+ __strcasecmp_l F
+ __strcasestr F
+ __strcat_chk F
+ __strcoll_l F
+ __strcpy_chk F
+ __strcpy_small F
+ __strcspn_c1 F
+ __strcspn_c2 F
+ __strcspn_c3 F
+ __strdup F
+ __strerror_r F
+ __strfmon_l F
+ __strftime_l F
+ __strncasecmp_l F
+ __strncat_chk F
+ __strncpy_chk F
+ __strndup F
+ __strpbrk_c2 F
+ __strpbrk_c3 F
+ __strsep_1c F
+ __strsep_2c F
+ __strsep_3c F
+ __strsep_g F
+ __strspn_c1 F
+ __strspn_c2 F
+ __strspn_c3 F
+ __strtod_internal F
+ __strtod_l F
+ __strtof_internal F
+ __strtof_l F
+ __strtok_r F
+ __strtok_r_1c F
+ __strtol_internal F
+ __strtol_l F
+ __strtold_internal F
+ __strtold_l F
+ __strtoll_internal F
+ __strtoll_l F
+ __strtoul_internal F
+ __strtoul_l F
+ __strtoull_internal F
+ __strtoull_l F
+ __strverscmp F
+ __strxfrm_l F
+ __subdf3 F
+ __subsf3 F
+ __swprintf_chk F
+ __sysconf F
+ __syslog_chk F
+ __sysv_signal F
+ __timezone D 0x4
+ __toascii_l F
+ __tolower_l F
+ __toupper_l F
+ __towctrans F
+ __towctrans_l F
+ __towlower_l F
+ __towupper_l F
+ __truncdfsf2 F
+ __ttyname_r_chk F
+ __tzname D 0x8
+ __uflow F
+ __underflow F
+ __unorddf2 F
+ __unordsf2 F
+ __uselocale F
+ __vasprintf_chk F
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+ ptsname F
+ ptsname_r F
+ putc F
+ putc_unlocked F
+ putchar F
+ putchar_unlocked F
+ putenv F
+ putgrent F
+ putmsg F
+ putpmsg F
+ putpwent F
+ puts F
+ putsgent F
+ putspent F
+ pututline F
+ pututxline F
+ putw F
+ putwc F
+ putwc_unlocked F
+ putwchar F
+ putwchar_unlocked F
+ pvalloc F
+ pwrite F
+ pwrite64 F
+ pwritev F
+ pwritev64 F
+ qecvt F
+ qecvt_r F
+ qfcvt F
+ qfcvt_r F
+ qgcvt F
+ qsort F
+ qsort_r F
+ query_module F
+ quick_exit F
+ quotactl F
+ raise F
+ rand F
+ rand_r F
+ random F
+ random_r F
+ rawmemchr F
+ rcmd F
+ rcmd_af F
+ re_comp F
+ re_compile_fastmap F
+ re_compile_pattern F
+ re_exec F
+ re_match F
+ re_match_2 F
+ re_search F
+ re_search_2 F
+ re_set_registers F
+ re_set_syntax F
+ re_syntax_options D 0x4
+ read F
+ readahead F
+ readdir F
+ readdir64 F
+ readdir64_r F
+ readdir_r F
+ readlink F
+ readlinkat F
+ readv F
+ realloc F
+ realpath F
+ reboot F
+ recv F
+ recvfrom F
+ recvmmsg F
+ recvmsg F
+ regcomp F
+ regerror F
+ regexec F
+ regfree F
+ register_printf_function F
+ register_printf_modifier F
+ register_printf_specifier F
+ register_printf_type F
+ registerrpc F
+ remap_file_pages F
+ remove F
+ removexattr F
+ remque F
+ rename F
+ renameat F
+ revoke F
+ rewind F
+ rewinddir F
+ rexec F
+ rexec_af F
+ rexecoptions D 0x4
+ rindex F
+ rmdir F
+ rpc_createerr D 0x10
+ rpmatch F
+ rresvport F
+ rresvport_af F
+ rtime F
+ ruserok F
+ ruserok_af F
+ ruserpass F
+ sbrk F
+ scalbn F
+ scalbnf F
+ scalbnl F
+ scandir F
+ scandir64 F
+ scandirat F
+ scandirat64 F
+ scanf F
+ sched_get_priority_max F
+ sched_get_priority_min F
+ sched_getaffinity F
+ sched_getcpu F
+ sched_getparam F
+ sched_getscheduler F
+ sched_rr_get_interval F
+ sched_setaffinity F
+ sched_setparam F
+ sched_setscheduler F
+ sched_yield F
+ secure_getenv F
+ seed48 F
+ seed48_r F
+ seekdir F
+ select F
+ semctl F
+ semget F
+ semop F
+ semtimedop F
+ send F
+ sendfile F
+ sendfile64 F
+ sendmmsg F
+ sendmsg F
+ sendto F
+ setaliasent F
+ setbuf F
+ setbuffer F
+ setcontext F
+ setdomainname F
+ setegid F
+ setenv F
+ seteuid F
+ setfsent F
+ setfsgid F
+ setfsuid F
+ setgid F
+ setgrent F
+ setgroups F
+ sethostent F
+ sethostid F
+ sethostname F
+ setipv4sourcefilter F
+ setitimer F
+ setjmp F
+ setlinebuf F
+ setlocale F
+ setlogin F
+ setlogmask F
+ setmntent F
+ setnetent F
+ setnetgrent F
+ setns F
+ setpgid F
+ setpgrp F
+ setpriority F
+ setprotoent F
+ setpwent F
+ setregid F
+ setresgid F
+ setresuid F
+ setreuid F
+ setrlimit F
+ setrlimit64 F
+ setrpcent F
+ setservent F
+ setsgent F
+ setsid F
+ setsockopt F
+ setsourcefilter F
+ setspent F
+ setstate F
+ setstate_r F
+ settimeofday F
+ setttyent F
+ setuid F
+ setusershell F
+ setutent F
+ setutxent F
+ setvbuf F
+ setxattr F
+ sgetsgent F
+ sgetsgent_r F
+ sgetspent F
+ sgetspent_r F
+ shmat F
+ shmctl F
+ shmdt F
+ shmget F
+ shutdown F
+ sigaction F
+ sigaddset F
+ sigaltstack F
+ sigandset F
+ sigblock F
+ sigdelset F
+ sigemptyset F
+ sigfillset F
+ siggetmask F
+ sighold F
+ sigignore F
+ siginterrupt F
+ sigisemptyset F
+ sigismember F
+ siglongjmp F
+ signal F
+ signalfd F
+ sigorset F
+ sigpause F
+ sigpending F
+ sigprocmask F
+ sigqueue F
+ sigrelse F
+ sigreturn F
+ sigset F
+ sigsetmask F
+ sigstack F
+ sigsuspend F
+ sigtimedwait F
+ sigwait F
+ sigwaitinfo F
+ sleep F
+ snprintf F
+ sockatmark F
+ socket F
+ socketpair F
+ splice F
+ sprintf F
+ sprofil F
+ srand F
+ srand48 F
+ srand48_r F
+ srandom F
+ srandom_r F
+ sscanf F
+ ssignal F
+ sstk F
+ statfs F
+ statfs64 F
+ statvfs F
+ statvfs64 F
+ stderr D 0x4
+ stdin D 0x4
+ stdout D 0x4
+ step F
+ stime F
+ stpcpy F
+ stpncpy F
+ strcasecmp F
+ strcasecmp_l F
+ strcasestr F
+ strcat F
+ strchr F
+ strchrnul F
+ strcmp F
+ strcoll F
+ strcoll_l F
+ strcpy F
+ strcspn F
+ strdup F
+ strerror F
+ strerror_l F
+ strerror_r F
+ strfmon F
+ strfmon_l F
+ strfry F
+ strftime F
+ strftime_l F
+ strlen F
+ strncasecmp F
+ strncasecmp_l F
+ strncat F
+ strncmp F
+ strncpy F
+ strndup F
+ strnlen F
+ strpbrk F
+ strptime F
+ strptime_l F
+ strrchr F
+ strsep F
+ strsignal F
+ strspn F
+ strstr F
+ strtod F
+ strtod_l F
+ strtof F
+ strtof_l F
+ strtoimax F
+ strtok F
+ strtok_r F
+ strtol F
+ strtol_l F
+ strtold F
+ strtold_l F
+ strtoll F
+ strtoll_l F
+ strtoq F
+ strtoul F
+ strtoul_l F
+ strtoull F
+ strtoull_l F
+ strtoumax F
+ strtouq F
+ strverscmp F
+ strxfrm F
+ strxfrm_l F
+ stty F
+ svc_exit F
+ svc_fdset D 0x80
+ svc_getreq F
+ svc_getreq_common F
+ svc_getreq_poll F
+ svc_getreqset F
+ svc_max_pollfd D 0x4
+ svc_pollfd D 0x4
+ svc_register F
+ svc_run F
+ svc_sendreply F
+ svc_unregister F
+ svcauthdes_stats D 0xc
+ svcerr_auth F
+ svcerr_decode F
+ svcerr_noproc F
+ svcerr_noprog F
+ svcerr_progvers F
+ svcerr_systemerr F
+ svcerr_weakauth F
+ svcfd_create F
+ svcraw_create F
+ svctcp_create F
+ svcudp_bufcreate F
+ svcudp_create F
+ svcudp_enablecache F
+ svcunix_create F
+ svcunixfd_create F
+ swab F
+ swapcontext F
+ swapoff F
+ swapon F
+ swprintf F
+ swscanf F
+ symlink F
+ symlinkat F
+ sync F
+ sync_file_range F
+ syncfs F
+ sys_errlist D 0x21c
+ sys_nerr D 0x4
+ sys_sigabbrev D 0x104
+ sys_siglist D 0x104
+ syscall F
+ sysconf F
+ sysctl F
+ sysinfo F
+ syslog F
+ system F
+ sysv_signal F
+ tcdrain F
+ tcflow F
+ tcflush F
+ tcgetattr F
+ tcgetpgrp F
+ tcgetsid F
+ tcsendbreak F
+ tcsetattr F
+ tcsetpgrp F
+ tdelete F
+ tdestroy F
+ tee F
+ telldir F
+ tempnam F
+ textdomain F
+ tfind F
+ time F
+ timegm F
+ timelocal F
+ timerfd_create F
+ timerfd_gettime F
+ timerfd_settime F
+ times F
+ timespec_get F
+ timezone D 0x4
+ tmpfile F
+ tmpfile64 F
+ tmpnam F
+ tmpnam_r F
+ toascii F
+ tolower F
+ tolower_l F
+ toupper F
+ toupper_l F
+ towctrans F
+ towctrans_l F
+ towlower F
+ towlower_l F
+ towupper F
+ towupper_l F
+ tr_break F
+ truncate F
+ truncate64 F
+ tsearch F
+ ttyname F
+ ttyname_r F
+ ttyslot F
+ twalk F
+ tzname D 0x8
+ tzset F
+ ualarm F
+ ulckpwdf F
+ ulimit F
+ umask F
+ umount F
+ umount2 F
+ uname F
+ ungetc F
+ ungetwc F
+ unlink F
+ unlinkat F
+ unlockpt F
+ unsetenv F
+ unshare F
+ updwtmp F
+ updwtmpx F
+ uselib F
+ uselocale F
+ user2netname F
+ usleep F
+ ustat F
+ utime F
+ utimensat F
+ utimes F
+ utmpname F
+ utmpxname F
+ valloc F
+ vasprintf F
+ vdprintf F
+ verr F
+ verrx F
+ versionsort F
+ versionsort64 F
+ vfork F
+ vfprintf F
+ vfscanf F
+ vfwprintf F
+ vfwscanf F
+ vhangup F
+ vlimit F
+ vmsplice F
+ vprintf F
+ vscanf F
+ vsnprintf F
+ vsprintf F
+ vsscanf F
+ vswprintf F
+ vswscanf F
+ vsyslog F
+ vtimes F
+ vwarn F
+ vwarnx F
+ vwprintf F
+ vwscanf F
+ wait F
+ wait3 F
+ wait4 F
+ waitid F
+ waitpid F
+ warn F
+ warnx F
+ wcpcpy F
+ wcpncpy F
+ wcrtomb F
+ wcscasecmp F
+ wcscasecmp_l F
+ wcscat F
+ wcschr F
+ wcschrnul F
+ wcscmp F
+ wcscoll F
+ wcscoll_l F
+ wcscpy F
+ wcscspn F
+ wcsdup F
+ wcsftime F
+ wcsftime_l F
+ wcslen F
+ wcsncasecmp F
+ wcsncasecmp_l F
+ wcsncat F
+ wcsncmp F
+ wcsncpy F
+ wcsnlen F
+ wcsnrtombs F
+ wcspbrk F
+ wcsrchr F
+ wcsrtombs F
+ wcsspn F
+ wcsstr F
+ wcstod F
+ wcstod_l F
+ wcstof F
+ wcstof_l F
+ wcstoimax F
+ wcstok F
+ wcstol F
+ wcstol_l F
+ wcstold F
+ wcstold_l F
+ wcstoll F
+ wcstoll_l F
+ wcstombs F
+ wcstoq F
+ wcstoul F
+ wcstoul_l F
+ wcstoull F
+ wcstoull_l F
+ wcstoumax F
+ wcstouq F
+ wcswcs F
+ wcswidth F
+ wcsxfrm F
+ wcsxfrm_l F
+ wctob F
+ wctomb F
+ wctrans F
+ wctrans_l F
+ wctype F
+ wctype_l F
+ wcwidth F
+ wmemchr F
+ wmemcmp F
+ wmemcpy F
+ wmemmove F
+ wmempcpy F
+ wmemset F
+ wordexp F
+ wordfree F
+ wprintf F
+ write F
+ writev F
+ wscanf F
+ xdecrypt F
+ xdr_accepted_reply F
+ xdr_array F
+ xdr_authdes_cred F
+ xdr_authdes_verf F
+ xdr_authunix_parms F
+ xdr_bool F
+ xdr_bytes F
+ xdr_callhdr F
+ xdr_callmsg F
+ xdr_char F
+ xdr_cryptkeyarg F
+ xdr_cryptkeyarg2 F
+ xdr_cryptkeyres F
+ xdr_des_block F
+ xdr_double F
+ xdr_enum F
+ xdr_float F
+ xdr_free F
+ xdr_getcredres F
+ xdr_hyper F
+ xdr_int F
+ xdr_int16_t F
+ xdr_int32_t F
+ xdr_int64_t F
+ xdr_int8_t F
+ xdr_key_netstarg F
+ xdr_key_netstres F
+ xdr_keybuf F
+ xdr_keystatus F
+ xdr_long F
+ xdr_longlong_t F
+ xdr_netnamestr F
+ xdr_netobj F
+ xdr_opaque F
+ xdr_opaque_auth F
+ xdr_pmap F
+ xdr_pmaplist F
+ xdr_pointer F
+ xdr_quad_t F
+ xdr_reference F
+ xdr_rejected_reply F
+ xdr_replymsg F
+ xdr_rmtcall_args F
+ xdr_rmtcallres F
+ xdr_short F
+ xdr_sizeof F
+ xdr_string F
+ xdr_u_char F
+ xdr_u_hyper F
+ xdr_u_int F
+ xdr_u_long F
+ xdr_u_longlong_t F
+ xdr_u_quad_t F
+ xdr_u_short F
+ xdr_uint16_t F
+ xdr_uint32_t F
+ xdr_uint64_t F
+ xdr_uint8_t F
+ xdr_union F
+ xdr_unixcred F
+ xdr_vector F
+ xdr_void F
+ xdr_wrapstring F
+ xdrmem_create F
+ xdrrec_create F
+ xdrrec_endofrecord F
+ xdrrec_eof F
+ xdrrec_skiprecord F
+ xdrstdio_create F
+ xencrypt F
+ xprt_register F
+ xprt_unregister F
diff --git a/sysdeps/unix/sysv/linux/arc/libcrypt.abilist b/sysdeps/unix/sysv/linux/arc/libcrypt.abilist
new file mode 100644
index 000000000000..835e081728ec
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libcrypt.abilist
@@ -0,0 +1,9 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ crypt F
+ crypt_r F
+ encrypt F
+ encrypt_r F
+ fcrypt F
+ setkey F
+ setkey_r F
diff --git a/sysdeps/unix/sysv/linux/arc/libdl.abilist b/sysdeps/unix/sysv/linux/arc/libdl.abilist
new file mode 100644
index 000000000000..ec7296aa7502
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libdl.abilist
@@ -0,0 +1,11 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ dladdr F
+ dladdr1 F
+ dlclose F
+ dlerror F
+ dlinfo F
+ dlmopen F
+ dlopen F
+ dlsym F
+ dlvsym F
diff --git a/sysdeps/unix/sysv/linux/arc/libm.abilist b/sysdeps/unix/sysv/linux/arc/libm.abilist
new file mode 100644
index 000000000000..bf2792093ba8
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libm.abilist
@@ -0,0 +1,370 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ _LIB_VERSION D 0x4
+ __acos_finite F
+ __acosf_finite F
+ __acosh_finite F
+ __acoshf_finite F
+ __asin_finite F
+ __asinf_finite F
+ __atan2_finite F
+ __atan2f_finite F
+ __atanh_finite F
+ __atanhf_finite F
+ __clog10 F
+ __clog10f F
+ __clog10l F
+ __cosh_finite F
+ __coshf_finite F
+ __exp10_finite F
+ __exp10f_finite F
+ __exp2_finite F
+ __exp2f_finite F
+ __exp_finite F
+ __expf_finite F
+ __finite F
+ __finitef F
+ __finitel F
+ __fmod_finite F
+ __fmodf_finite F
+ __fpclassify F
+ __fpclassifyf F
+ __gamma_r_finite F
+ __gammaf_r_finite F
+ __hypot_finite F
+ __hypotf_finite F
+ __issignaling F
+ __issignalingf F
+ __j0_finite F
+ __j0f_finite F
+ __j1_finite F
+ __j1f_finite F
+ __jn_finite F
+ __jnf_finite F
+ __lgamma_r_finite F
+ __lgammaf_r_finite F
+ __log10_finite F
+ __log10f_finite F
+ __log2_finite F
+ __log2f_finite F
+ __log_finite F
+ __logf_finite F
+ __pow_finite F
+ __powf_finite F
+ __remainder_finite F
+ __remainderf_finite F
+ __scalb_finite F
+ __scalbf_finite F
+ __signbit F
+ __signbitf F
+ __sinh_finite F
+ __sinhf_finite F
+ __sqrt_finite F
+ __sqrtf_finite F
+ __y0_finite F
+ __y0f_finite F
+ __y1_finite F
+ __y1f_finite F
+ __yn_finite F
+ __ynf_finite F
+ acos F
+ acosf F
+ acosh F
+ acoshf F
+ acoshl F
+ acosl F
+ asin F
+ asinf F
+ asinh F
+ asinhf F
+ asinhl F
+ asinl F
+ atan F
+ atan2 F
+ atan2f F
+ atan2l F
+ atanf F
+ atanh F
+ atanhf F
+ atanhl F
+ atanl F
+ cabs F
+ cabsf F
+ cabsl F
+ cacos F
+ cacosf F
+ cacosh F
+ cacoshf F
+ cacoshl F
+ cacosl F
+ carg F
+ cargf F
+ cargl F
+ casin F
+ casinf F
+ casinh F
+ casinhf F
+ casinhl F
+ casinl F
+ catan F
+ catanf F
+ catanh F
+ catanhf F
+ catanhl F
+ catanl F
+ cbrt F
+ cbrtf F
+ cbrtl F
+ ccos F
+ ccosf F
+ ccosh F
+ ccoshf F
+ ccoshl F
+ ccosl F
+ ceil F
+ ceilf F
+ ceill F
+ cexp F
+ cexpf F
+ cexpl F
+ cimag F
+ cimagf F
+ cimagl F
+ clog F
+ clog10 F
+ clog10f F
+ clog10l F
+ clogf F
+ clogl F
+ conj F
+ conjf F
+ conjl F
+ copysign F
+ copysignf F
+ copysignl F
+ cos F
+ cosf F
+ cosh F
+ coshf F
+ coshl F
+ cosl F
+ cpow F
+ cpowf F
+ cpowl F
+ cproj F
+ cprojf F
+ cprojl F
+ creal F
+ crealf F
+ creall F
+ csin F
+ csinf F
+ csinh F
+ csinhf F
+ csinhl F
+ csinl F
+ csqrt F
+ csqrtf F
+ csqrtl F
+ ctan F
+ ctanf F
+ ctanh F
+ ctanhf F
+ ctanhl F
+ ctanl F
+ drem F
+ dremf F
+ dreml F
+ erf F
+ erfc F
+ erfcf F
+ erfcl F
+ erff F
+ erfl F
+ exp F
+ exp10 F
+ exp10f F
+ exp10l F
+ exp2 F
+ exp2f F
+ exp2l F
+ expf F
+ expl F
+ expm1 F
+ expm1f F
+ expm1l F
+ fabs F
+ fabsf F
+ fabsl F
+ fdim F
+ fdimf F
+ fdiml F
+ feclearexcept F
+ fedisableexcept F
+ feenableexcept F
+ fegetenv F
+ fegetexcept F
+ fegetexceptflag F
+ fegetround F
+ feholdexcept F
+ feraiseexcept F
+ fesetenv F
+ fesetexceptflag F
+ fesetround F
+ fetestexcept F
+ feupdateenv F
+ finite F
+ finitef F
+ finitel F
+ floor F
+ floorf F
+ floorl F
+ fma F
+ fmaf F
+ fmal F
+ fmax F
+ fmaxf F
+ fmaxl F
+ fmin F
+ fminf F
+ fminl F
+ fmod F
+ fmodf F
+ fmodl F
+ frexp F
+ frexpf F
+ frexpl F
+ gamma F
+ gammaf F
+ gammal F
+ hypot F
+ hypotf F
+ hypotl F
+ ilogb F
+ ilogbf F
+ ilogbl F
+ j0 F
+ j0f F
+ j0l F
+ j1 F
+ j1f F
+ j1l F
+ jn F
+ jnf F
+ jnl F
+ ldexp F
+ ldexpf F
+ ldexpl F
+ lgamma F
+ lgamma_r F
+ lgammaf F
+ lgammaf_r F
+ lgammal F
+ lgammal_r F
+ llrint F
+ llrintf F
+ llrintl F
+ llround F
+ llroundf F
+ llroundl F
+ log F
+ log10 F
+ log10f F
+ log10l F
+ log1p F
+ log1pf F
+ log1pl F
+ log2 F
+ log2f F
+ log2l F
+ logb F
+ logbf F
+ logbl F
+ logf F
+ logl F
+ lrint F
+ lrintf F
+ lrintl F
+ lround F
+ lroundf F
+ lroundl F
+ matherr F
+ modf F
+ modff F
+ modfl F
+ nan F
+ nanf F
+ nanl F
+ nearbyint F
+ nearbyintf F
+ nearbyintl F
+ nextafter F
+ nextafterf F
+ nextafterl F
+ nexttoward F
+ nexttowardf F
+ nexttowardl F
+ pow F
+ pow10 F
+ pow10f F
+ pow10l F
+ powf F
+ powl F
+ remainder F
+ remainderf F
+ remainderl F
+ remquo F
+ remquof F
+ remquol F
+ rint F
+ rintf F
+ rintl F
+ round F
+ roundf F
+ roundl F
+ scalb F
+ scalbf F
+ scalbl F
+ scalbln F
+ scalblnf F
+ scalblnl F
+ scalbn F
+ scalbnf F
+ scalbnl F
+ signgam D 0x4
+ significand F
+ significandf F
+ significandl F
+ sin F
+ sincos F
+ sincosf F
+ sincosl F
+ sinf F
+ sinh F
+ sinhf F
+ sinhl F
+ sinl F
+ sqrt F
+ sqrtf F
+ sqrtl F
+ tan F
+ tanf F
+ tanh F
+ tanhf F
+ tanhl F
+ tanl F
+ tgamma F
+ tgammaf F
+ tgammal F
+ trunc F
+ truncf F
+ truncl F
+ y0 F
+ y0f F
+ y0l F
+ y1 F
+ y1f F
+ y1l F
+ yn F
+ ynf F
+ ynl F
diff --git a/sysdeps/unix/sysv/linux/arc/libnsl.abilist b/sysdeps/unix/sysv/linux/arc/libnsl.abilist
new file mode 100644
index 000000000000..f5cd34c15cf2
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libnsl.abilist
@@ -0,0 +1,123 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ __free_fdresult F
+ __nis_default_access F
+ __nis_default_group F
+ __nis_default_owner F
+ __nis_default_ttl F
+ __nis_finddirectory F
+ __nis_hash F
+ __nisbind_connect F
+ __nisbind_create F
+ __nisbind_destroy F
+ __nisbind_next F
+ __yp_check F
+ nis_add F
+ nis_add_entry F
+ nis_addmember F
+ nis_checkpoint F
+ nis_clone_directory F
+ nis_clone_object F
+ nis_clone_result F
+ nis_creategroup F
+ nis_destroy_object F
+ nis_destroygroup F
+ nis_dir_cmp F
+ nis_domain_of F
+ nis_domain_of_r F
+ nis_first_entry F
+ nis_free_directory F
+ nis_free_object F
+ nis_free_request F
+ nis_freenames F
+ nis_freeresult F
+ nis_freeservlist F
+ nis_freetags F
+ nis_getnames F
+ nis_getservlist F
+ nis_ismember F
+ nis_leaf_of F
+ nis_leaf_of_r F
+ nis_lerror F
+ nis_list F
+ nis_local_directory F
+ nis_local_group F
+ nis_local_host F
+ nis_local_principal F
+ nis_lookup F
+ nis_mkdir F
+ nis_modify F
+ nis_modify_entry F
+ nis_name_of F
+ nis_name_of_r F
+ nis_next_entry F
+ nis_perror F
+ nis_ping F
+ nis_print_directory F
+ nis_print_entry F
+ nis_print_group F
+ nis_print_group_entry F
+ nis_print_link F
+ nis_print_object F
+ nis_print_result F
+ nis_print_rights F
+ nis_print_table F
+ nis_read_obj F
+ nis_remove F
+ nis_remove_entry F
+ nis_removemember F
+ nis_rmdir F
+ nis_servstate F
+ nis_sperrno F
+ nis_sperror F
+ nis_sperror_r F
+ nis_stats F
+ nis_verifygroup F
+ nis_write_obj F
+ readColdStartFile F
+ writeColdStartFile F
+ xdr_cback_data F
+ xdr_domainname F
+ xdr_keydat F
+ xdr_mapname F
+ xdr_obj_p F
+ xdr_peername F
+ xdr_valdat F
+ xdr_yp_buf F
+ xdr_ypall F
+ xdr_ypbind_binding F
+ xdr_ypbind_resp F
+ xdr_ypbind_resptype F
+ xdr_ypbind_setdom F
+ xdr_ypdelete_args F
+ xdr_ypmap_parms F
+ xdr_ypmaplist F
+ xdr_yppush_status F
+ xdr_yppushresp_xfr F
+ xdr_ypreq_key F
+ xdr_ypreq_nokey F
+ xdr_ypreq_xfr F
+ xdr_ypresp_all F
+ xdr_ypresp_key_val F
+ xdr_ypresp_maplist F
+ xdr_ypresp_master F
+ xdr_ypresp_order F
+ xdr_ypresp_val F
+ xdr_ypresp_xfr F
+ xdr_ypstat F
+ xdr_ypupdate_args F
+ xdr_ypxfrstat F
+ yp_all F
+ yp_bind F
+ yp_first F
+ yp_get_default_domain F
+ yp_maplist F
+ yp_master F
+ yp_match F
+ yp_next F
+ yp_order F
+ yp_unbind F
+ yp_update F
+ ypbinderr_string F
+ yperr_string F
+ ypprot_err F
diff --git a/sysdeps/unix/sysv/linux/arc/libpthread.abilist b/sysdeps/unix/sysv/linux/arc/libpthread.abilist
new file mode 100644
index 000000000000..93b909906b92
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libpthread.abilist
@@ -0,0 +1,224 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ _IO_flockfile F
+ _IO_ftrylockfile F
+ _IO_funlockfile F
+ __close F
+ __connect F
+ __errno_location F
+ __fcntl F
+ __fork F
+ __h_errno_location F
+ __libc_allocate_rtsig F
+ __libc_current_sigrtmax F
+ __libc_current_sigrtmin F
+ __lseek F
+ __nanosleep F
+ __open F
+ __open64 F
+ __pread64 F
+ __pthread_cleanup_routine F
+ __pthread_getspecific F
+ __pthread_key_create F
+ __pthread_mutex_destroy F
+ __pthread_mutex_init F
+ __pthread_mutex_lock F
+ __pthread_mutex_trylock F
+ __pthread_mutex_unlock F
+ __pthread_mutexattr_destroy F
+ __pthread_mutexattr_init F
+ __pthread_mutexattr_settype F
+ __pthread_once F
+ __pthread_register_cancel F
+ __pthread_register_cancel_defer F
+ __pthread_rwlock_destroy F
+ __pthread_rwlock_init F
+ __pthread_rwlock_rdlock F
+ __pthread_rwlock_tryrdlock F
+ __pthread_rwlock_trywrlock F
+ __pthread_rwlock_unlock F
+ __pthread_rwlock_wrlock F
+ __pthread_setspecific F
+ __pthread_unregister_cancel F
+ __pthread_unregister_cancel_restore F
+ __pthread_unwind_next F
+ __pwrite64 F
+ __read F
+ __res_state F
+ __send F
+ __sigaction F
+ __wait F
+ __write F
+ _pthread_cleanup_pop F
+ _pthread_cleanup_pop_restore F
+ _pthread_cleanup_push F
+ _pthread_cleanup_push_defer F
+ accept F
+ close F
+ connect F
+ fcntl F
+ flockfile F
+ fork F
+ fsync F
+ ftrylockfile F
+ funlockfile F
+ longjmp F
+ lseek F
+ lseek64 F
+ msync F
+ nanosleep F
+ open F
+ open64 F
+ pause F
+ pread F
+ pread64 F
+ pthread_attr_destroy F
+ pthread_attr_getaffinity_np F
+ pthread_attr_getdetachstate F
+ pthread_attr_getguardsize F
+ pthread_attr_getinheritsched F
+ pthread_attr_getschedparam F
+ pthread_attr_getschedpolicy F
+ pthread_attr_getscope F
+ pthread_attr_getstack F
+ pthread_attr_getstackaddr F
+ pthread_attr_getstacksize F
+ pthread_attr_init F
+ pthread_attr_setaffinity_np F
+ pthread_attr_setdetachstate F
+ pthread_attr_setguardsize F
+ pthread_attr_setinheritsched F
+ pthread_attr_setschedparam F
+ pthread_attr_setschedpolicy F
+ pthread_attr_setscope F
+ pthread_attr_setstack F
+ pthread_attr_setstackaddr F
+ pthread_attr_setstacksize F
+ pthread_barrier_destroy F
+ pthread_barrier_init F
+ pthread_barrier_wait F
+ pthread_barrierattr_destroy F
+ pthread_barrierattr_getpshared F
+ pthread_barrierattr_init F
+ pthread_barrierattr_setpshared F
+ pthread_cancel F
+ pthread_cond_broadcast F
+ pthread_cond_destroy F
+ pthread_cond_init F
+ pthread_cond_signal F
+ pthread_cond_timedwait F
+ pthread_cond_wait F
+ pthread_condattr_destroy F
+ pthread_condattr_getclock F
+ pthread_condattr_getpshared F
+ pthread_condattr_init F
+ pthread_condattr_setclock F
+ pthread_condattr_setpshared F
+ pthread_create F
+ pthread_detach F
+ pthread_equal F
+ pthread_exit F
+ pthread_getaffinity_np F
+ pthread_getattr_default_np F
+ pthread_getattr_np F
+ pthread_getconcurrency F
+ pthread_getcpuclockid F
+ pthread_getname_np F
+ pthread_getschedparam F
+ pthread_getspecific F
+ pthread_join F
+ pthread_key_create F
+ pthread_key_delete F
+ pthread_kill F
+ pthread_kill_other_threads_np F
+ pthread_mutex_consistent F
+ pthread_mutex_consistent_np F
+ pthread_mutex_destroy F
+ pthread_mutex_getprioceiling F
+ pthread_mutex_init F
+ pthread_mutex_lock F
+ pthread_mutex_setprioceiling F
+ pthread_mutex_timedlock F
+ pthread_mutex_trylock F
+ pthread_mutex_unlock F
+ pthread_mutexattr_destroy F
+ pthread_mutexattr_getkind_np F
+ pthread_mutexattr_getprioceiling F
+ pthread_mutexattr_getprotocol F
+ pthread_mutexattr_getpshared F
+ pthread_mutexattr_getrobust F
+ pthread_mutexattr_getrobust_np F
+ pthread_mutexattr_gettype F
+ pthread_mutexattr_init F
+ pthread_mutexattr_setkind_np F
+ pthread_mutexattr_setprioceiling F
+ pthread_mutexattr_setprotocol F
+ pthread_mutexattr_setpshared F
+ pthread_mutexattr_setrobust F
+ pthread_mutexattr_setrobust_np F
+ pthread_mutexattr_settype F
+ pthread_once F
+ pthread_rwlock_destroy F
+ pthread_rwlock_init F
+ pthread_rwlock_rdlock F
+ pthread_rwlock_timedrdlock F
+ pthread_rwlock_timedwrlock F
+ pthread_rwlock_tryrdlock F
+ pthread_rwlock_trywrlock F
+ pthread_rwlock_unlock F
+ pthread_rwlock_wrlock F
+ pthread_rwlockattr_destroy F
+ pthread_rwlockattr_getkind_np F
+ pthread_rwlockattr_getpshared F
+ pthread_rwlockattr_init F
+ pthread_rwlockattr_setkind_np F
+ pthread_rwlockattr_setpshared F
+ pthread_self F
+ pthread_setaffinity_np F
+ pthread_setattr_default_np F
+ pthread_setcancelstate F
+ pthread_setcanceltype F
+ pthread_setconcurrency F
+ pthread_setname_np F
+ pthread_setschedparam F
+ pthread_setschedprio F
+ pthread_setspecific F
+ pthread_sigmask F
+ pthread_sigqueue F
+ pthread_spin_destroy F
+ pthread_spin_init F
+ pthread_spin_lock F
+ pthread_spin_trylock F
+ pthread_spin_unlock F
+ pthread_testcancel F
+ pthread_timedjoin_np F
+ pthread_tryjoin_np F
+ pthread_yield F
+ pwrite F
+ pwrite64 F
+ raise F
+ read F
+ recv F
+ recvfrom F
+ recvmsg F
+ sem_close F
+ sem_destroy F
+ sem_getvalue F
+ sem_init F
+ sem_open F
+ sem_post F
+ sem_timedwait F
+ sem_trywait F
+ sem_unlink F
+ sem_wait F
+ send F
+ sendmsg F
+ sendto F
+ sigaction F
+ siglongjmp F
+ sigwait F
+ system F
+ tcdrain F
+ wait F
+ waitpid F
+ write F
diff --git a/sysdeps/unix/sysv/linux/arc/libresolv.abilist b/sysdeps/unix/sysv/linux/arc/libresolv.abilist
new file mode 100644
index 000000000000..4c4a55a083b6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libresolv.abilist
@@ -0,0 +1,93 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ __b64_ntop F
+ __b64_pton F
+ __dn_comp F
+ __dn_count_labels F
+ __dn_expand F
+ __dn_skipname F
+ __fp_nquery F
+ __fp_query F
+ __fp_resstat F
+ __hostalias F
+ __loc_aton F
+ __loc_ntoa F
+ __p_cdname F
+ __p_cdnname F
+ __p_class F
+ __p_class_syms D 0x54
+ __p_fqname F
+ __p_fqnname F
+ __p_option F
+ __p_query F
+ __p_rcode F
+ __p_secstodate F
+ __p_time F
+ __p_type F
+ __p_type_syms D 0x228
+ __putlong F
+ __putshort F
+ __res_close F
+ __res_dnok F
+ __res_hnok F
+ __res_hostalias F
+ __res_isourserver F
+ __res_mailok F
+ __res_mkquery F
+ __res_nameinquery F
+ __res_nmkquery F
+ __res_nquery F
+ __res_nquerydomain F
+ __res_nsearch F
+ __res_nsend F
+ __res_ownok F
+ __res_queriesmatch F
+ __res_query F
+ __res_querydomain F
+ __res_search F
+ __res_send F
+ __sym_ntop F
+ __sym_ntos F
+ __sym_ston F
+ _gethtbyaddr F
+ _gethtbyname F
+ _gethtbyname2 F
+ _gethtent F
+ _getlong F
+ _getshort F
+ _res_opcodes D 0x40
+ _sethtent F
+ inet_net_ntop F
+ inet_net_pton F
+ inet_neta F
+ ns_datetosecs F
+ ns_format_ttl F
+ ns_get16 F
+ ns_get32 F
+ ns_initparse F
+ ns_makecanon F
+ ns_msg_getflag F
+ ns_name_compress F
+ ns_name_ntol F
+ ns_name_ntop F
+ ns_name_pack F
+ ns_name_pton F
+ ns_name_rollback F
+ ns_name_skip F
+ ns_name_uncompress F
+ ns_name_unpack F
+ ns_parse_ttl F
+ ns_parserr F
+ ns_put16 F
+ ns_put32 F
+ ns_samedomain F
+ ns_samename F
+ ns_skiprr F
+ ns_sprintrr F
+ ns_sprintrrf F
+ ns_subdomain F
+ res_gethostbyaddr F
+ res_gethostbyname F
+ res_gethostbyname2 F
+ res_send_setqhook F
+ res_send_setrhook F
diff --git a/sysdeps/unix/sysv/linux/arc/librt.abilist b/sysdeps/unix/sysv/linux/arc/librt.abilist
new file mode 100644
index 000000000000..c1192b9eca07
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/librt.abilist
@@ -0,0 +1,37 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ __mq_open_2 F
+ aio_cancel F
+ aio_cancel64 F
+ aio_error F
+ aio_error64 F
+ aio_fsync F
+ aio_fsync64 F
+ aio_init F
+ aio_read F
+ aio_read64 F
+ aio_return F
+ aio_return64 F
+ aio_suspend F
+ aio_suspend64 F
+ aio_write F
+ aio_write64 F
+ lio_listio F
+ lio_listio64 F
+ mq_close F
+ mq_getattr F
+ mq_notify F
+ mq_open F
+ mq_receive F
+ mq_send F
+ mq_setattr F
+ mq_timedreceive F
+ mq_timedsend F
+ mq_unlink F
+ shm_open F
+ shm_unlink F
+ timer_create F
+ timer_delete F
+ timer_getoverrun F
+ timer_gettime F
+ timer_settime F
diff --git a/sysdeps/unix/sysv/linux/arc/libthread_db.abilist b/sysdeps/unix/sysv/linux/arc/libthread_db.abilist
new file mode 100644
index 000000000000..5e7883768dc7
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libthread_db.abilist
@@ -0,0 +1,42 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ td_init F
+ td_log F
+ td_symbol_list F
+ td_ta_clear_event F
+ td_ta_delete F
+ td_ta_enable_stats F
+ td_ta_event_addr F
+ td_ta_event_getmsg F
+ td_ta_get_nthreads F
+ td_ta_get_ph F
+ td_ta_get_stats F
+ td_ta_map_id2thr F
+ td_ta_map_lwp2thr F
+ td_ta_new F
+ td_ta_reset_stats F
+ td_ta_set_event F
+ td_ta_setconcurrency F
+ td_ta_thr_iter F
+ td_ta_tsd_iter F
+ td_thr_clear_event F
+ td_thr_dbresume F
+ td_thr_dbsuspend F
+ td_thr_event_enable F
+ td_thr_event_getmsg F
+ td_thr_get_info F
+ td_thr_getfpregs F
+ td_thr_getgregs F
+ td_thr_getxregs F
+ td_thr_getxregsize F
+ td_thr_set_event F
+ td_thr_setfpregs F
+ td_thr_setgregs F
+ td_thr_setprio F
+ td_thr_setsigpending F
+ td_thr_setxregs F
+ td_thr_sigsetmask F
+ td_thr_tls_get_addr F
+ td_thr_tlsbase F
+ td_thr_tsd F
+ td_thr_validate F
diff --git a/sysdeps/unix/sysv/linux/arc/libutil.abilist b/sysdeps/unix/sysv/linux/arc/libutil.abilist
new file mode 100644
index 000000000000..e12934336d7a
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/libutil.abilist
@@ -0,0 +1,8 @@
+GLIBC_2.24
+ GLIBC_2.24 A
+ forkpty F
+ login F
+ login_tty F
+ logout F
+ logwtmp F
+ openpty F
diff --git a/sysdeps/unix/sysv/linux/arc/localplt.data b/sysdeps/unix/sysv/linux/arc/localplt.data
new file mode 100644
index 000000000000..ee2b94889b12
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/localplt.data
@@ -0,0 +1,35 @@
+libc.so: realloc
+libc.so: __eqsf2
+libc.so: __floatsisf
+libc.so: __ltdf2
+libc.so: __gedf2
+libc.so: malloc
+libc.so: __nesf2
+libc.so: memalign
+libc.so: __mulsf3
+libc.so: __floatunsisf
+libc.so: __addsf3
+libc.so: __fixsfsi
+libc.so: __subsf3
+libc.so: calloc
+libc.so: __muldf3
+libc.so: __signbit
+libc.so: free
+libc.so: __subdf3
+libc.so: __adddf3
+libc.so: __divdf3
+libc.so: __floatsidf
+libc.so: __divsf3
+libc.so: __nedf2
+libc.so: __eqdf2
+libm.so: __signbitf
+libm.so: __signbit
+libm.so: matherr
+# The dynamic loader uses __libc_memalign internally to allocate aligned
+# TLS storage. The other malloc family of functions are expected to allow
+# user symbol interposition.
+ld.so: __libc_memalign
+ld.so: malloc
+ld.so: calloc
+ld.so: realloc
+ld.so: free
diff --git a/sysdeps/unix/sysv/linux/arc/mmap_internal.h b/sysdeps/unix/sysv/linux/arc/mmap_internal.h
new file mode 100644
index 000000000000..e9b8a4366de6
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/mmap_internal.h
@@ -0,0 +1,26 @@
+/* mmap - map files or devices into memory. Linux/ARC version.
+ Copyright (C) 2017 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef MMAP_ARC_INTERNAL_H
+#define MMAP_ARC_INTERNAL_H
+
+#define MMAP2_PAGE_UNIT 8192ULL /* 8K page is default for ARC */
+
+#include_next <mmap_internal.h>
+
+#endif
diff --git a/sysdeps/unix/sysv/linux/arc/profil-counter.h b/sysdeps/unix/sysv/linux/arc/profil-counter.h
new file mode 100644
index 000000000000..8a6a0bcf3d59
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/profil-counter.h
@@ -0,0 +1,2 @@
+/* We can use the ix86 version. */
+#include <sysdeps/unix/sysv/linux/i386/profil-counter.h>
diff --git a/sysdeps/unix/sysv/linux/arc/pt-vfork.S b/sysdeps/unix/sysv/linux/arc/pt-vfork.S
new file mode 100644
index 000000000000..65cc3823ac87
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/pt-vfork.S
@@ -0,0 +1 @@
+#include <sysdeps/unix/sysv/linux/alpha/pt-vfork.S>
diff --git a/sysdeps/unix/sysv/linux/arc/shlib-versions b/sysdeps/unix/sysv/linux/arc/shlib-versions
new file mode 100644
index 000000000000..c4d5d029812d
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/shlib-versions
@@ -0,0 +1,2 @@
+DEFAULT GLIBC_2.21
+ld=ld-linux.so.2
diff --git a/sysdeps/unix/sysv/linux/arc/sigaction.c b/sysdeps/unix/sysv/linux/arc/sigaction.c
new file mode 100644
index 000000000000..2bd7b0f08ddc
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sigaction.c
@@ -0,0 +1,64 @@
+/* Copyright (C) 1997-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <errno.h>
+#include <signal.h>
+#include <string.h>
+#include <sys/syscall.h>
+
+/*
+ * Default sigretrun stub if user doesn't specify SA_RESTORER
+ */
+static void __default_rt_sa_restorer(void)
+{
+ INTERNAL_SYSCALL_NCS(__NR_rt_sigreturn, , 0);
+}
+
+#define SA_RESTORER 0x04000000
+
+/* If @act is not NULL, change the action for @sig to @act.
+ If @oact is not NULL, put the old action for @sig in @oact. */
+int
+__libc_sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
+{
+ struct sigaction kact;
+ const struct sigaction *arg;
+
+ /*
+ * SA_RESTORER is only relevant for act != NULL case
+ * (!act means caller only wants to know @oact)
+ */
+ if (act && !(act->sa_flags & SA_RESTORER)) {
+ kact.sa_restorer = __default_rt_sa_restorer;
+ kact.sa_flags = act->sa_flags | SA_RESTORER;
+
+ kact.sa_handler = act->sa_handler;
+ kact.sa_mask = act->sa_mask;
+
+ arg = &kact;
+ } else {
+ arg = act;
+ }
+
+ return INLINE_SYSCALL(rt_sigaction, 4,
+ sig, arg, oact, _NSIG / 8);
+}
+
+libc_hidden_def (__libc_sigaction)
+
+#include <nptl/sigaction.c>
diff --git a/sysdeps/unix/sysv/linux/arc/sigcontextinfo.h b/sysdeps/unix/sysv/linux/arc/sigcontextinfo.h
new file mode 100644
index 000000000000..12ca534c9467
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sigcontextinfo.h
@@ -0,0 +1,28 @@
+/* ARC definitions for signal handling calling conventions.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/ucontext.h>
+#include "kernel-features.h"
+
+#define SIGCONTEXT int _code, struct ucontext *
+#define SIGCONTEXT_EXTRA_ARGS _code,
+#define GET_PC(ctx) ((void *) (ctx)->uc_mcontext.regs.scratch.ret)
+#define GET_FRAME(ctx) ((void *) (ctx)->uc_mcontext.regs.scratch.fp)
+#define GET_STACK(ctx) ((void *) (ctx)->uc_mcontext.regs.scratch.sp)
+#define CALL_SIGHANDLER(handler, signo, ctx) \
+ (handler)((signo), SIGCONTEXT_EXTRA_ARGS (ctx))
diff --git a/sysdeps/unix/sysv/linux/arc/sys/cachectl.h b/sysdeps/unix/sysv/linux/arc/sys/cachectl.h
new file mode 100644
index 000000000000..1f7db26af6ff
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sys/cachectl.h
@@ -0,0 +1,36 @@
+/* cacheflush - flush contents of instruction and/or data cache.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library. If not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_CACHECTL_H
+#define _SYS_CACHECTL_H 1
+
+#include <features.h>
+
+/* Get the kernel definition for the op bits. */
+#include <asm/cachectl.h>
+
+__BEGIN_DECLS
+
+#ifdef __USE_MISC
+extern int cacheflush (void *__addr, const int __nbytes, const int __op) __THROW;
+#endif
+extern int _flush_cache (char *__addr, const int __nbytes, const int __op) __THROW;
+
+__END_DECLS
+
+#endif /* sys/cachectl.h */
diff --git a/sysdeps/unix/sysv/linux/arc/sys/procfs.h b/sysdeps/unix/sysv/linux/arc/sys/procfs.h
new file mode 100644
index 000000000000..3f655b77f05b
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sys/procfs.h
@@ -0,0 +1,123 @@
+/* Core image file related definitions, ARC version.
+ Copyright (C) 1996-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_PROCFS_H
+#define _SYS_PROCFS_H 1
+
+/* This is somewhat modelled after the file of the same name on SVR4
+ systems. It provides a definition of the core file format for ELF
+ used on Linux. It doesn't have anything to do with the /proc file
+ system, even though Linux has one.
+
+ Anyway, the whole purpose of this file is for GDB and GDB only.
+ Don't read too much into it. Don't use it for anything other than
+ GDB unless you know what you are doing. */
+
+#include <features.h>
+#include <sys/time.h>
+#include <sys/types.h>
+#include <sys/user.h>
+
+__BEGIN_DECLS
+
+/* Type for a general-purpose register. */
+typedef unsigned long elf_greg_t;
+
+/* And the whole bunch of them. We could have used `struct
+ user_regs' directly in the typedef, but tradition says that
+ the register set is an array, which does have some peculiar
+ semantics, so leave it that way. */
+#define ELF_NGREG (sizeof (struct user_regs_struct) / sizeof(elf_greg_t))
+typedef elf_greg_t elf_gregset_t[ELF_NGREG];
+
+/* Register set for the floating-point registers. */
+typedef struct { } elf_fpregset_t;
+
+/* Signal info. */
+struct elf_siginfo
+ {
+ int si_signo; /* Signal number. */
+ int si_code; /* Extra code. */
+ int si_errno; /* Errno. */
+ };
+
+/* Definitions to generate Intel SVR4-like core files. These mostly
+ have the same names as the SVR4 types with "elf_" tacked on the
+ front to prevent clashes with Linux definitions, and the typedef
+ forms have been avoided. This is mostly like the SVR4 structure,
+ but more Linuxy, with things that Linux does not support and which
+ GDB doesn't really use excluded. */
+
+struct elf_prstatus
+ {
+ struct elf_siginfo pr_info; /* Info associated with signal. */
+ short int pr_cursig; /* Current signal. */
+ unsigned long int pr_sigpend; /* Set of pending signals. */
+ unsigned long int pr_sighold; /* Set of held signals. */
+ __pid_t pr_pid;
+ __pid_t pr_ppid;
+ __pid_t pr_pgrp;
+ __pid_t pr_sid;
+ struct timeval pr_utime; /* User time. */
+ struct timeval pr_stime; /* System time. */
+ struct timeval pr_cutime; /* Cumulative user time. */
+ struct timeval pr_cstime; /* Cumulative system time. */
+ elf_gregset_t pr_reg; /* GP registers. */
+ int pr_fpvalid; /* True if math copro being used. */
+ };
+
+
+#define ELF_PRARGSZ (80) /* Number of chars for args. */
+
+struct elf_prpsinfo
+ {
+ char pr_state; /* Numeric process state. */
+ char pr_sname; /* Char for pr_state. */
+ char pr_zomb; /* Zombie. */
+ char pr_nice; /* Nice val. */
+ unsigned long int pr_flag; /* Flags. */
+ unsigned short int pr_uid;
+ unsigned short int pr_gid;
+ int pr_pid, pr_ppid, pr_pgrp, pr_sid;
+ /* Lots missing */
+ char pr_fname[16]; /* Filename of executable. */
+ char pr_psargs[ELF_PRARGSZ]; /* Initial part of arg list. */
+ };
+
+/* The rest of this file provides the types for emulation of the
+ Solaris <proc_service.h> interfaces that should be implemented by
+ users of libthread_db. */
+
+/* Addresses. */
+typedef void *psaddr_t;
+
+/* Register sets. Linux has different names. */
+typedef elf_gregset_t prgregset_t;
+typedef elf_fpregset_t prfpregset_t;
+
+/* We don't have any differences between processes and threads,
+ therefore have only one PID type. */
+typedef __pid_t lwpid_t;
+
+/* Process status and info. In the end we do provide typedefs for them. */
+typedef struct elf_prstatus prstatus_t;
+typedef struct elf_prpsinfo prpsinfo_t;
+
+__END_DECLS
+
+#endif /* sys/procfs.h */
diff --git a/sysdeps/unix/sysv/linux/arc/sys/ucontext.h b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
new file mode 100644
index 000000000000..37f7f9224853
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sys/ucontext.h
@@ -0,0 +1,40 @@
+/* struct ucontext definition, ARC version.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+/* System V/ARC ABI compliant context switching support. */
+
+#ifndef _SYS_UCONTEXT_H
+#define _SYS_UCONTEXT_H 1
+
+#include <features.h>
+#include <signal.h>
+#include <bits/sigcontext.h>
+
+typedef struct sigcontext mcontext_t;
+
+/* Userlevel context. */
+typedef struct ucontext
+ {
+ unsigned long uc_flags;
+ struct ucontext *uc_link;
+ stack_t uc_stack;
+ mcontext_t uc_mcontext;
+ __sigset_t uc_sigmask;
+ } ucontext_t;
+
+#endif /* sys/ucontext.h */
diff --git a/sysdeps/unix/sysv/linux/arc/sys/user.h b/sysdeps/unix/sysv/linux/arc/sys/user.h
new file mode 100644
index 000000000000..642f480f2302
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sys/user.h
@@ -0,0 +1,32 @@
+/* ptrace register data format definitions.
+ Copyright (C) 1998-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _SYS_USER_H
+#define _SYS_USER_H 1
+
+/* struct user_regs_struct is exported by kernel header
+ * However apps like strace also expect a struct user, so it's better to
+ * have a dummy implementation
+ */
+#include <asm/ptrace.h>
+
+struct user {
+ int dummy;
+};
+
+#endif /* sys/user.h */
diff --git a/sysdeps/unix/sysv/linux/arc/syscall.S b/sysdeps/unix/sysv/linux/arc/syscall.S
new file mode 100644
index 000000000000..1ad559619f69
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/syscall.S
@@ -0,0 +1,33 @@
+/* syscall - indirect system call.
+ Copyright (C) 2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+
+ENTRY (syscall)
+ mov_s r8, r0
+ mov_s r0, r1
+ mov_s r1, r2
+ mov_s r2, r3
+ mov_s r3, r4
+ mov_s r4, r5
+ mov_s r5, r6
+
+ ARC_TRAP_INSN
+ brhi r0, -1024, 0f
+ j [blink]
+PSEUDO_END (syscall)
diff --git a/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h b/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
new file mode 100644
index 000000000000..db89ad033a79
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sysdep-cancel.h
@@ -0,0 +1,140 @@
+/* Assembler macros with cancellation support, ARC version.
+ Copyright (C) 2003-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <tls.h>
+#ifndef __ASSEMBLER__
+# include <nptl/pthreadP.h>
+#endif
+
+#if IS_IN (libc)
+#define BR_ERRNO_SETTER b PLTJMP(HIDDEN_JUMPTARGET(__syscall_error))
+#else
+#define BR_ERRNO_SETTER b PLTJMP(__syscall_error)
+#endif
+
+#if IS_IN (libc) || IS_IN (libpthread) || IS_IN (librt)
+
+#ifdef __ASSEMBLER__
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, nargs) \
+ /* vanilla version */ ASM_LINE_SEP \
+ ENTRY(name##_nocancel) ASM_LINE_SEP \
+ DO_CALL (__NR_##syscall_name) ASM_LINE_SEP \
+ jls [blink] ASM_LINE_SEP \
+ BR_ERRNO_SETTER ASM_LINE_SEP \
+ END(name##_nocancel) ASM_LINE_SEP \
+ /* thread cancellation variant */ ASM_LINE_SEP \
+ ENTRY(name) ASM_LINE_SEP \
+ SINGLE_THREAD_P ASM_LINE_SEP \
+ bz name##_nocancel ASM_LINE_SEP \
+ DOCARGS_##nargs /* stash syscall args */ ASM_LINE_SEP \
+ CENABLE /* call enable_asynccancel */ ASM_LINE_SEP \
+ mov r9, r0 /* Safe-keep mask */ ASM_LINE_SEP \
+ UNDOCARGS_##nargs /* restore syscall args */ ASM_LINE_SEP \
+ DO_CALL (__NR_##syscall_name) ASM_LINE_SEP \
+ PUSH r0 /* save syscall return value */ ASM_LINE_SEP \
+ mov r0, r9 /* mask for disable_asynccancel */ ASM_LINE_SEP \
+ CDISABLE ASM_LINE_SEP \
+ POP r0 /* get syscall ret value back */ ASM_LINE_SEP \
+ POP blink /* UNDOCARGS left blink on stack */ ASM_LINE_SEP \
+ cmp r0, -1024 ASM_LINE_SEP \
+ jls [blink] ASM_LINE_SEP \
+ BR_ERRNO_SETTER ASM_LINE_SEP \
+ END(name)
+
+#undef PSEUDO_END
+#define PSEUDO_END(name) \
+
+# if IS_IN (libpthread)
+# define CENABLE bl PLTJMP(__pthread_enable_asynccancel)
+# define CDISABLE bl PLTJMP(__pthread_disable_asynccancel)
+# elif IS_IN (libc)
+# define CENABLE bl PLTJMP(__libc_enable_asynccancel)
+# define CDISABLE bl PLTJMP(__libc_disable_asynccancel)
+# elif IS_IN (librt)
+# define CENABLE bl PLTJMP(__librt_enable_asynccancel)
+# define CDISABLE bl PLTJMP(__librt_disable_asynccancel)
+# else
+# error Unsupported library
+# endif
+
+#undef DO_CALL
+#define DO_CALL(num) \
+ mov r8, num ASM_LINE_SEP \
+ ARC_TRAP_INSN ASM_LINE_SEP \
+ cmp r0, -1024
+
+.macro PUSH reg
+ st.a \reg, [sp, -4]
+.endm
+
+.macro POP reg
+ ld.ab \reg, [sp, 4]
+.endm
+
+#define DOCARGS_0 PUSH blink
+/* don't pop blink at this point */
+#define UNDOCARGS_0 ld blink, [sp]
+
+#define DOCARGS_1 DOCARGS_0 ASM_LINE_SEP PUSH r0
+#define UNDOCARGS_1 POP r0 ASM_LINE_SEP UNDOCARGS_0
+
+#define DOCARGS_2 DOCARGS_1 ASM_LINE_SEP PUSH r1
+#define UNDOCARGS_2 POP r1 ASM_LINE_SEP UNDOCARGS_1
+
+#define DOCARGS_3 DOCARGS_2 ASM_LINE_SEP PUSH r2
+#define UNDOCARGS_3 POP r2 ASM_LINE_SEP UNDOCARGS_2
+
+#define DOCARGS_4 DOCARGS_3 ASM_LINE_SEP PUSH r3
+#define UNDOCARGS_4 POP r3 ASM_LINE_SEP UNDOCARGS_3
+
+#define DOCARGS_5 DOCARGS_4 ASM_LINE_SEP PUSH r4
+#define UNDOCARGS_5 POP r4 ASM_LINE_SEP UNDOCARGS_4
+
+#define DOCARGS_6 DOCARGS_5 ASM_LINE_SEP PUSH r5
+#define UNDOCARGS_6 POP r5 ASM_LINE_SEP UNDOCARGS_5
+
+#define DOCARGS_7 DOCARGS_6 ASM_LINE_SEP PUSH r6
+#define UNDOCARGS_7 POP r6 ASM_LINE_SEP UNDOCARGS_6
+
+# define SINGLE_THREAD_P \
+ THREAD_SELF r9 ASM_LINE_SEP \
+ ld r10, [r9, MULTIPLE_THREADS_OFFSET] ASM_LINE_SEP \
+ cmp r10, 0
+
+#else /* !__ASSEMBLER__ */
+
+/* TBD: Can use @__local_multiple_threads for libc/libpthread like ARM */
+# define SINGLE_THREAD_P \
+ __glibc_likely(THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
+
+#endif /* !__ASSEMBLER__ */
+
+#elif !defined __ASSEMBLER__
+
+# define SINGLE_THREAD_P 1
+# define NO_CANCELLATION 1
+
+#endif
+
+#ifndef __ASSEMBLER__
+# define RTLD_SINGLE_THREAD_P \
+ __glibc_likely (THREAD_GETMEM (THREAD_SELF, header.multiple_threads) == 0)
+#endif
diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.c b/sysdeps/unix/sysv/linux/arc/sysdep.c
new file mode 100644
index 000000000000..43cca0fe6688
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sysdep.c
@@ -0,0 +1,22 @@
+/* Wrapper for setting errno.
+ *
+ * Copyright (C) 2000-2006 Erik Andersen <andersen@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sysdep.h>
+#include <errno.h>
+
+/* All syscall handler come here to avoid generated code bloat due to
+ * GOT reference to errno_location or it's equivalent
+ */
+int __syscall_error(int err_no)
+{
+ __set_errno(-err_no);
+ return -1;
+}
+
+#if IS_IN (libc)
+hidden_def (__syscall_error)
+#endif
diff --git a/sysdeps/unix/sysv/linux/arc/sysdep.h b/sysdeps/unix/sysv/linux/arc/sysdep.h
new file mode 100644
index 000000000000..507d06a8a575
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/sysdep.h
@@ -0,0 +1,253 @@
+/* Assembler macros for ARC.
+ Copyright (C) 2000-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#ifndef _LINUX_ARC_SYSDEP_H
+#define _LINUX_ARC_SYSDEP_H 1
+
+#include <asm/unistd.h>
+#include <sysdeps/arc/sysdep.h>
+#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
+
+/* For RTLD_PRIVATE_ERRNO. */
+#include <dl-sysdep.h>
+
+#include <tls.h>
+
+#undef SYS_ify
+#define SYS_ify(syscall_name) __NR_##syscall_name
+
+#ifdef __ASSEMBLER__
+
+/* This is a "normal" system call stub: if there is an error,
+ it returns -1 and sets errno. */
+
+# undef PSEUDO
+# define PSEUDO(name, syscall_name, args) \
+ PSEUDO_NOERRNO(name, syscall_name, args) ASM_LINE_SEP \
+ brhi r0, -1024, 0f ASM_LINE_SEP
+
+#define ret j [blink]
+
+# undef PSEUDO_END
+# define PSEUDO_END(name) \
+ SYSCALL_ERROR_HANDLER ASM_LINE_SEP \
+ END (name)
+
+/* --------- helper for SYSCALL_NOERRNO ----------- */
+
+/* This kind of system call stub never returns an error.
+ We return the return value register to the caller unexamined. */
+
+# undef PSEUDO_NOERRNO
+# define PSEUDO_NOERRNO(name, syscall_name, args) \
+ .text ASM_LINE_SEP \
+ ENTRY (name) ASM_LINE_SEP \
+ DO_CALL (syscall_name, args) ASM_LINE_SEP \
+
+/* return the return value register unexamined
+ * r0 is both syscall return reg and function return reg, so no need to do
+ * anything
+ */
+# define ret_NOERRNO \
+ j_s [blink] ASM_LINE_SEP
+
+# undef PSEUDO_END_NOERRNO
+# define PSEUDO_END_NOERRNO(name) \
+ END (name)
+
+/* --------- helper for SYSCALL_ERRVAL ----------- */
+
+/* This kind of system call stub returns the errno code as its return
+ value, or zero for success. We may massage the kernel's return value
+ to meet that ABI, but we never set errno here. */
+
+# undef PSEUDO_ERRVAL
+# define PSEUDO_ERRVAL(name, syscall_name, args) \
+ PSEUDO_NOERRNO(name, syscall_name, args) ASM_LINE_SEP
+
+/* don't set errno, return kernel error (in errno form) or zero */
+# define ret_ERRVAL \
+ rsub r0, r0, 0 ASM_LINE_SEP \
+ ret_NOERRNO
+
+# undef PSEUDO_END_ERRVAL
+# define PSEUDO_END_ERRVAL(name) \
+ END (name)
+
+
+/* To reduce the code footprint, we confine the actual errno access
+ * to single place in __syscall_error()
+ * this takes raw kernel error value, sets errno and returns -1
+ */
+#if IS_IN (libc)
+#define CALL_ERRNO_SETTER_C bl PLTJMP(HIDDEN_JUMPTARGET(__syscall_error))
+#else
+#define CALL_ERRNO_SETTER_C bl PLTJMP(__syscall_error)
+#endif
+
+# define SYSCALL_ERROR_HANDLER \
+0: ASM_LINE_SEP \
+ st.a blink, [sp, -4] ASM_LINE_SEP \
+ CALL_ERRNO_SETTER_C ASM_LINE_SEP \
+ ld.ab blink, [sp, 4] ASM_LINE_SEP \
+ j [blink]
+
+# define DO_CALL(syscall_name, args) \
+ mov r8, SYS_ify (syscall_name) ASM_LINE_SEP \
+ ARC_TRAP_INSN ASM_LINE_SEP
+
+#define ARC_TRAP_INSN trap_s 0
+
+#else /* !__ASSEMBLER__ */
+
+/* In order to get __set_errno() definition in INLINE_SYSCALL. */
+#include <errno.h>
+
+extern int __syscall_error (int);
+
+#if IS_IN (libc)
+hidden_proto (__syscall_error)
+#define CALL_ERRNO_SETTER "bl __syscall_error \n\t"
+#else
+#define CALL_ERRNO_SETTER "bl __syscall_error@plt \n\t"
+#endif
+
+
+/* Define a macro which expands into the inline wrapper code for a system
+ call. */
+#undef INLINE_SYSCALL
+#define INLINE_SYSCALL(name, nr_args, args...) \
+({ \
+ register int __res __asm__("r0"); \
+ __res = INTERNAL_SYSCALL_NCS(__NR_##name, , nr_args, args); \
+ if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P ((__res), ), 0)) \
+ { \
+ asm volatile ("st.a blink, [sp, -4] \n\t" \
+ CALL_ERRNO_SETTER \
+ "ld.ab blink, [sp, 4] \n\t" \
+ :"+r" (__res) \
+ : \
+ :"r1","r2","r3","r4","r5","r6", \
+ "r7","r8","r9","r10","r11","r12"); \
+ } \
+ __res; \
+})
+
+#undef INTERNAL_SYSCALL_DECL
+#define INTERNAL_SYSCALL_DECL(err) do { } while (0)
+
+#undef INTERNAL_SYSCALL_ERRNO
+# define INTERNAL_SYSCALL_ERRNO(val, err) (-(val))
+
+/* -1 to -1023 are valid errno values */
+#undef INTERNAL_SYSCALL_ERROR_P
+#define INTERNAL_SYSCALL_ERROR_P(val, err) \
+ ((unsigned int) (val) > -1024U)
+
+#define ARC_TRAP_INSN "trap_s 0 \n\t"
+
+#undef INTERNAL_SYSCALL_RAW
+#define INTERNAL_SYSCALL_RAW(name, err, nr_args, args...) \
+({ \
+ /* Per ABI, r0 is 1st arg and return reg */ \
+ register int __ret __asm__("r0"); \
+ register int _sys_num __asm__("r8"); \
+ \
+ LOAD_ARGS_##nr_args (name, args) \
+ \
+ __asm__ volatile ( \
+ ARC_TRAP_INSN \
+ : "+r" (__ret) \
+ : "r"(_sys_num) ASM_ARGS_##nr_args \
+ : "memory"); \
+ \
+ __ret; \
+})
+
+/* Macros for setting up inline __asm__ input regs */
+#define ASM_ARGS_0
+#define ASM_ARGS_1 ASM_ARGS_0, "r" (__ret)
+#define ASM_ARGS_2 ASM_ARGS_1, "r" (_arg2)
+#define ASM_ARGS_3 ASM_ARGS_2, "r" (_arg3)
+#define ASM_ARGS_4 ASM_ARGS_3, "r" (_arg4)
+#define ASM_ARGS_5 ASM_ARGS_4, "r" (_arg5)
+#define ASM_ARGS_6 ASM_ARGS_5, "r" (_arg6)
+#define ASM_ARGS_7 ASM_ARGS_6, "r" (_arg7)
+
+/* Macros for converting sys-call wrapper args into sys call args */
+#define LOAD_ARGS_0(nm, arg) \
+ _sys_num = (int) (nm);
+
+#define LOAD_ARGS_1(nm, arg1) \
+ __ret = (int) (arg1); \
+ LOAD_ARGS_0 (nm, arg1)
+
+/*
+ * Note that the use of _tmpX might look superflous, however it is needed
+ * to ensure that register variables are not clobbered if arg happens to be
+ * a function call itself. e.g. sched_setaffinity() calling getpid() for arg2
+ *
+ * Also this specific order of recursive calling is important to segregate
+ * the tmp args evaluation (function call case described above) and assigment
+ * of register variables
+ */
+#define LOAD_ARGS_2(nm, arg1, arg2) \
+ int _tmp2 = (int) (arg2); \
+ LOAD_ARGS_1 (nm, arg1) \
+ register int _arg2 __asm__ ("r1") = _tmp2;
+
+#define LOAD_ARGS_3(nm, arg1, arg2, arg3) \
+ int _tmp3 = (int) (arg3); \
+ LOAD_ARGS_2 (nm, arg1, arg2) \
+ register int _arg3 __asm__ ("r2") = _tmp3;
+
+#define LOAD_ARGS_4(nm, arg1, arg2, arg3, arg4) \
+ int _tmp4 = (int) (arg4); \
+ LOAD_ARGS_3 (nm, arg1, arg2, arg3) \
+ register int _arg4 __asm__ ("r3") = _tmp4;
+
+#define LOAD_ARGS_5(nm, arg1, arg2, arg3, arg4, arg5) \
+ int _tmp5 = (int) (arg5); \
+ LOAD_ARGS_4 (nm, arg1, arg2, arg3, arg4) \
+ register int _arg5 __asm__ ("r4") = _tmp5;
+
+#define LOAD_ARGS_6(nm, arg1, arg2, arg3, arg4, arg5, arg6) \
+ int _tmp6 = (int) (arg6); \
+ LOAD_ARGS_5 (nm, arg1, arg2, arg3, arg4, arg5) \
+ register int _arg6 __asm__ ("r5") = _tmp6;
+
+#define LOAD_ARGS_7(nm, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
+ int _tmp7 = (int) (arg7); \
+ LOAD_ARGS_6 (nm, arg1, arg2, arg3, arg4, arg5, arg6) \
+ register int _arg7 __asm__ ("r6") = _tmp7;
+
+#undef INTERNAL_SYSCALL
+#define INTERNAL_SYSCALL(name, err, nr, args...) \
+ INTERNAL_SYSCALL_RAW(SYS_ify(name), err, nr, args)
+
+#undef INTERNAL_SYSCALL_NCS
+#define INTERNAL_SYSCALL_NCS(number, err, nr, args...) \
+ INTERNAL_SYSCALL_RAW(number, err, nr, args)
+
+/* Pointer mangling not yet supported */
+# define PTR_MANGLE(var) (void) (var)
+# define PTR_DEMANGLE(var) (void) (var)
+
+#endif /* !__ASSEMBLER__ */
+
+#endif /* linux/arc/sysdep.h */
diff --git a/sysdeps/unix/sysv/linux/arc/ucontext_i.sym b/sysdeps/unix/sysv/linux/arc/ucontext_i.sym
new file mode 100644
index 000000000000..5d0b6a1ae67e
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/ucontext_i.sym
@@ -0,0 +1,17 @@
+#include <inttypes.h>
+#include <signal.h>
+#include <stddef.h>
+#include <sys/ucontext.h>
+
+SIG_BLOCK
+SIG_SETMASK
+
+-- Offsets of the fields in the ucontext_t structure.
+#define ucontext(member) offsetof (ucontext_t, member)
+
+UCONTEXT_FLAGS ucontext (uc_flags)
+UCONTEXT_LINK ucontext (uc_link)
+UCONTEXT_STACK ucontext (uc_stack)
+UCONTEXT_MCONTEXT ucontext (uc_mcontext)
+UCONTEXT_SIGMASK ucontext (uc_sigmask)
+UCONTEXT_SIZE sizeof (ucontext_t)
diff --git a/sysdeps/unix/sysv/linux/arc/vfork.S b/sysdeps/unix/sysv/linux/arc/vfork.S
new file mode 100644
index 000000000000..7cb29f5ef95c
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/arc/vfork.S
@@ -0,0 +1,42 @@
+/* vfork for ARC Linux.
+ Copyright (C) 2005-2015 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sys/syscall.h>
+#include <sysdep.h>
+#include <tcb-offsets.h>
+#define _SIGNAL_H
+#include <bits/signum.h> /* For SIGCHLD */
+
+#define CLONE_VM 0x00000100
+#define CLONE_VFORK 0x00004000
+#define CLONE_FLAGS_FOR_VFORK (CLONE_VM|CLONE_VFORK|SIGCHLD)
+
+ENTRY(__vfork)
+ mov r0, CLONE_FLAGS_FOR_VFORK
+ mov_s r1, sp
+ mov r8, __NR_clone
+ ARC_TRAP_INSN
+
+ cmp r0, 0
+ jge [blink] ; child continues
+
+ b __syscall_error
+PSEUDO_END (__vfork)
+libc_hidden_def (__vfork)
+
+weak_alias (__vfork, vfork)
--
2.7.4