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GNU C Library master sources branch hjl/pie/static created. glibc-2.26-448-gc38eafe
- From: hjl at sourceware dot org
- To: glibc-cvs at sourceware dot org
- Date: 29 Sep 2017 20:45:20 -0000
- Subject: GNU C Library master sources branch hjl/pie/static created. glibc-2.26-448-gc38eafe
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, hjl/pie/static has been created
at c38eafe47bab9479a3eab285eda411e9627bac89 (commit)
- Log -----------------------------------------------------------------
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=c38eafe47bab9479a3eab285eda411e9627bac89
commit c38eafe47bab9479a3eab285eda411e9627bac89
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Sep 27 16:47:29 2017 -0700
Add --enable-static-pie to build-many-glibcs.py
diff --git a/scripts/build-many-glibcs.py b/scripts/build-many-glibcs.py
index 8ce1c6f..013c96d 100755
--- a/scripts/build-many-glibcs.py
+++ b/scripts/build-many-glibcs.py
@@ -1343,6 +1343,7 @@ class Glibc(object):
cfg_cmd = [os.path.join(srcdir_copy, 'configure'),
'--prefix=/usr',
'--enable-add-ons',
+ '--enable-static-pie',
'--enable-profile',
'--build=%s' % self.ctx.build_triplet,
'--host=%s' % self.triplet,
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=91539ebe794ba0fec1212e066b6bb6df9c97f65c
commit 91539ebe794ba0fec1212e066b6bb6df9c97f65c
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Sep 29 01:07:53 2017 -0700
tile: Check SHARED instead PIC for SYSCALL_ERROR_NAME
For static PIE code, PIC is defined and SHARED is undefined. We
should check SHARED instead PIC for SYSCALL_ERROR_NAME.
* sysdeps/unix/sysv/linux/tile/sysdep.h (SYSCALL_ERROR_NAME):
Check SHARED instead PIC.
diff --git a/sysdeps/unix/sysv/linux/tile/sysdep.h b/sysdeps/unix/sysv/linux/tile/sysdep.h
index fb1b89c..6e37fd2 100644
--- a/sysdeps/unix/sysv/linux/tile/sysdep.h
+++ b/sysdeps/unix/sysv/linux/tile/sysdep.h
@@ -42,7 +42,7 @@
#define ret jrp lr
-#ifndef PIC
+#ifndef SHARED
/* For static code, on error jump to __syscall_error directly. */
# define SYSCALL_ERROR_NAME __syscall_error
#elif IS_IN (libc) || IS_IN (libpthread)
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=7ac533b603a630d7a4304cdd723b389b067b6436
commit 7ac533b603a630d7a4304cdd723b389b067b6436
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:13:54 2017 -0700
sparc: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/sparc/sparc32/start.S (_start): Check PIC instead of
SHARED.
* sysdeps/sparc/sparc64/start.S (_start): Likewise.
diff --git a/sysdeps/sparc/sparc32/start.S b/sysdeps/sparc/sparc32/start.S
index a06568d..b882d1e 100644
--- a/sysdeps/sparc/sparc32/start.S
+++ b/sysdeps/sparc/sparc32/start.S
@@ -42,7 +42,7 @@
.global _start
.type _start,#function
_start:
-#ifdef SHARED
+#ifdef PIC
SETUP_PIC_REG(l7)
#endif
@@ -57,7 +57,7 @@ _start:
add %sp, 23*4, %o2
/* Load the addresses of the user entry points. */
-#ifndef SHARED
+#ifndef PIC
sethi %hi(main), %o0
sethi %hi(__libc_csu_init), %o3
sethi %hi(__libc_csu_fini), %o4
diff --git a/sysdeps/sparc/sparc64/start.S b/sysdeps/sparc/sparc64/start.S
index fcd4721..21d16de 100644
--- a/sysdeps/sparc/sparc64/start.S
+++ b/sysdeps/sparc/sparc64/start.S
@@ -42,7 +42,7 @@
.global _start
.type _start,#function
_start:
-#ifdef SHARED
+#ifdef PIC
SETUP_PIC_REG(l7)
#endif
@@ -58,7 +58,7 @@ _start:
add %sp, STACK_BIAS+23*8, %o2
/* Load the addresses of the user entry points. */
-#ifndef SHARED
+#ifndef PIC
sethi %hi(main), %o0
sethi %hi(__libc_csu_init), %o3
sethi %hi(__libc_csu_fini), %o4
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=dd728f680adc5b51cd292ae78f6ba8b5fd27a087
commit dd728f680adc5b51cd292ae78f6ba8b5fd27a087
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:13:22 2017 -0700
microblaze: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/microblaze/start.S (_start): Check PIC instead of SHARED.
diff --git a/sysdeps/microblaze/start.S b/sysdeps/microblaze/start.S
index f94e816..d9b13d0 100644
--- a/sysdeps/microblaze/start.S
+++ b/sysdeps/microblaze/start.S
@@ -58,7 +58,7 @@ _start:
sw r6,r1,r0
addik r7,r1,4
addik r1,r1,-24
-#ifdef SHARED
+#ifdef PIC
/* Setup PIC. */
mfs r20,rpc
addik r20,r20,_GLOBAL_OFFSET_TABLE_+8
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=4bf8f80282b075c7df8d810b99068107482676a8
commit 4bf8f80282b075c7df8d810b99068107482676a8
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:12:52 2017 -0700
m68k: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/m68k/start.S (_start): Check PIC instead of SHARED.
diff --git a/sysdeps/m68k/start.S b/sysdeps/m68k/start.S
index 71ba3b9..9f5d588 100644
--- a/sysdeps/m68k/start.S
+++ b/sysdeps/m68k/start.S
@@ -76,7 +76,7 @@ _start:
pea (%a1) /* Push address of the shared library
termination function. */
-#ifdef SHARED
+#ifdef PIC
/* Load PIC register. */
LOAD_GOT (%a5)
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=b0571a56e34c5d7aa26f1ea1f5473feb878987d2
commit b0571a56e34c5d7aa26f1ea1f5473feb878987d2
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:12:28 2017 -0700
hppa: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/hppa/start.S (_start): Check PIC instead of SHARED.
diff --git a/sysdeps/hppa/start.S b/sysdeps/hppa/start.S
index 5db1ba9..c7f5972 100644
--- a/sysdeps/hppa/start.S
+++ b/sysdeps/hppa/start.S
@@ -42,7 +42,7 @@
/* Have the linker create plabel words so we get PLABEL32
relocs and not 21/14. The use of 21/14 relocs is only
supported in the latest dynamic linker. */
-#ifdef SHARED
+#ifdef PIC
.section .data.rel.ro,"aw",@progbits
#else
.section .rodata,"a",@progbits
@@ -56,7 +56,7 @@
.word P%__libc_csu_fini
.Lp__libc_csu_init:
.word P%__libc_csu_init
-#ifdef SHARED
+#ifdef PIC
.Lp__global:
.word $global$
#endif
@@ -101,7 +101,7 @@ _start:
stw %r23, -56(%sp)
/* Need to setup 1, 4, 5, and 7th arguments */
-#ifdef SHARED
+#ifdef PIC
/* load main (1st argument) */
addil LT'.Lpmain, %r19
ldw RT'.Lpmain(%r1), %r26
@@ -130,7 +130,7 @@ _start:
/* void *stack_end (7th argument) */
stw %sp, -60(%sp)
-#ifdef SHARED
+#ifdef PIC
/* load global */
addil LT'.Lp__global, %r19
ldw RT'.Lp__global(%r1), %dp
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=21f28b917a53ecfa09e9d25635e3572da4d2c6d6
commit 21f28b917a53ecfa09e9d25635e3572da4d2c6d6
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:12:02 2017 -0700
arm: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/arm/start.S (_start): Check PIC instead of SHARED.
diff --git a/sysdeps/arm/start.S b/sysdeps/arm/start.S
index 4973878..a5c678b 100644
--- a/sysdeps/arm/start.S
+++ b/sysdeps/arm/start.S
@@ -89,7 +89,7 @@ _start:
/* Push rtld_fini */
push { a1 }
-#ifdef SHARED
+#ifdef PIC
ldr sl, .L_GOT
adr a4, .L_GOT
add sl, sl, a4
@@ -127,7 +127,7 @@ _start:
/* should never get here....*/
bl abort
-#ifdef SHARED
+#ifdef PIC
.align 2
.L_GOT:
.word _GLOBAL_OFFSET_TABLE_ - .L_GOT
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=0a4c207339d1261aa625153b3a23717ef037c382
commit 0a4c207339d1261aa625153b3a23717ef037c382
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 16:11:02 2017 -0700
aarch64: Check PIC instead of SHARED in start.S
Since start.o may be compiled as PIC, we should check PIC instead of
SHARED.
* sysdeps/aarch64/start.S (_start): Check PIC instead of SHARED.
diff --git a/sysdeps/aarch64/start.S b/sysdeps/aarch64/start.S
index c20433a..7a94650 100644
--- a/sysdeps/aarch64/start.S
+++ b/sysdeps/aarch64/start.S
@@ -60,7 +60,7 @@ _start:
/* Setup stack limit in argument register */
mov x6, sp
-#ifdef SHARED
+#ifdef PIC
adrp x0, :got:main
ldr PTR_REG (0), [x0, #:got_lo12:main]
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=3cd4fa1fba997ba90778bd961e0da4ea1e2f51e2
commit 3cd4fa1fba997ba90778bd961e0da4ea1e2f51e2
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:59:00 2017 -0700
tile: Support --enable-static-pie
tile uses _DYNAMIC to compute load address, which works with static PIE.
We just need to return 0 if _DYNAMIC is undefined for static executable.
* sysdeps/tile/dl-machine.h (elf_machine_load_address): Return 0
if _DYNAMIC is undefined for static executable.
diff --git a/sysdeps/tile/dl-machine.h b/sysdeps/tile/dl-machine.h
index f7af7c3..8601147 100644
--- a/sysdeps/tile/dl-machine.h
+++ b/sysdeps/tile/dl-machine.h
@@ -84,6 +84,11 @@ elf_machine_dynamic (void)
static inline ElfW(Addr)
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern ElfW(Dyn) _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
ElfW(Addr) *got;
ElfW(Addr) dynamic;
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=3faab4cbe084e414cdae6512067fc4b166f1f61a
commit 3faab4cbe084e414cdae6512067fc4b166f1f61a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:57:09 2017 -0700
sparc: Support --enable-static-pie
sparc uses a local label to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/sparc/sparc32/dl-machine.h (elf_machine_dynamic): Return
0 if _DYNAMIC is undefined for static executable.
* sysdeps/sparc/sparc64/dl-machine.h (elf_machine_dynamic):
Likewise.
diff --git a/sysdeps/sparc/sparc32/dl-machine.h b/sysdeps/sparc/sparc32/dl-machine.h
index 436e4e6..30ae1b5 100644
--- a/sysdeps/sparc/sparc32/dl-machine.h
+++ b/sysdeps/sparc/sparc32/dl-machine.h
@@ -77,6 +77,11 @@ elf_machine_dynamic (void)
static inline Elf32_Addr
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
register Elf32_Addr *pc __asm ("%o7"), *got __asm ("%l7");
__asm ("sethi %%hi(_GLOBAL_OFFSET_TABLE_-4), %1\n\t"
diff --git a/sysdeps/sparc/sparc64/dl-machine.h b/sysdeps/sparc/sparc64/dl-machine.h
index c2871dc..22e6dcc 100644
--- a/sysdeps/sparc/sparc64/dl-machine.h
+++ b/sysdeps/sparc/sparc64/dl-machine.h
@@ -66,6 +66,11 @@ elf_machine_dynamic (void)
static inline Elf64_Addr
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf64_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
register Elf32_Addr *pc __asm ("%o7");
register Elf64_Addr *got __asm ("%l7");
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=80dc26f8efe3f12d2f2caf852676061474a57b74
commit 80dc26f8efe3f12d2f2caf852676061474a57b74
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:55:18 2017 -0700
sh: Support --enable-static-pie
When --enable-static-pie is used to configure glibc, we need to use
_dl_relocate_static_pie to compute load address in static PIE.
* sysdeps/sh/dl-machine.h (elf_machine_load_address): Use
_dl_relocate_static_pie instead of _dl_start to compute load
address in static PIE. Return 0 if _DYNAMIC is undefined for
static executable.
diff --git a/sysdeps/sh/dl-machine.h b/sysdeps/sh/dl-machine.h
index 7106afb..627ef11 100644
--- a/sysdeps/sh/dl-machine.h
+++ b/sysdeps/sh/dl-machine.h
@@ -50,6 +50,7 @@ static inline Elf32_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
Elf32_Addr addr;
+#ifdef SHARED
asm ("mov.l 1f,r0\n\
mov.l 3f,r2\n\
add r12,r2\n\
@@ -61,6 +62,22 @@ elf_machine_load_address (void)
3: .long _dl_start@GOTOFF\n\
2: mov r2,%0"
: "=r" (addr) : : "r0", "r1", "r2");
+#else
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ asm ("mov.l 1f,r0\n\
+ mov.l 3f,r2\n\
+ add r12,r2\n\
+ mov.l @(r0,r12),r0\n\
+ bra 2f\n\
+ sub r0,r2\n\
+ .align 2\n\
+ 1: .long _dl_relocate_static_pie@GOT\n\
+ 3: .long _dl_relocate_static_pie@GOTOFF\n\
+ 2: mov r2,%0"
+ : "=r" (addr) : : "r0", "r1", "r2");
+#endif
return addr;
}
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=3207ce4b31c82688a2fdb2a4cff1cfe15d5879f1
commit 3207ce4b31c82688a2fdb2a4cff1cfe15d5879f1
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:53:06 2017 -0700
s390: Support --enable-static-pie
When --enable-static-pie is used to configure glibc, we need to use
_dl_relocate_static_pie to compute load address in static PIE.
* sysdeps/s390/s390-32/dl-machine.h (elf_machine_dynamic): Use
_dl_relocate_static_pie instead of _dl_start to compute load
address in static PIE. Return 0 if _DYNAMIC is undefined for
static executable.
* sysdeps/s390/s390-64/dl-machine.h (elf_machine_dynamic):
Likewise.
diff --git a/sysdeps/s390/s390-32/dl-machine.h b/sysdeps/s390/s390-32/dl-machine.h
index c302c9d..b5cdcb8 100644
--- a/sysdeps/s390/s390-32/dl-machine.h
+++ b/sysdeps/s390/s390-32/dl-machine.h
@@ -70,6 +70,7 @@ elf_machine_load_address (void)
{
Elf32_Addr addr;
+#ifdef SHARED
__asm__( " bras 1,2f\n"
"1: .long _GLOBAL_OFFSET_TABLE_ - 1b\n"
" .long (_dl_start - 1b - 0x80000000) & 0x00000000ffffffff\n"
@@ -78,6 +79,19 @@ elf_machine_load_address (void)
" al 1,0(1)\n"
" sl %0,_dl_start@GOT(1)"
: "=&d" (addr) : : "1" );
+#else
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ __asm__( " bras 1,2f\n"
+ "1: .long _GLOBAL_OFFSET_TABLE_ - 1b\n"
+ " .long (_dl_relocate_static_pie - 1b - 0x80000000) & 0x00000000ffffffff\n"
+ "2: l %0,4(1)\n"
+ " ar %0,1\n"
+ " al 1,0(1)\n"
+ " sl %0,_dl_relocate_static_pie@GOT(1)"
+ : "=&d" (addr) : : "1" );
+#endif
return addr;
}
diff --git a/sysdeps/s390/s390-64/dl-machine.h b/sysdeps/s390/s390-64/dl-machine.h
index 7513520..724cc4f 100644
--- a/sysdeps/s390/s390-64/dl-machine.h
+++ b/sysdeps/s390/s390-64/dl-machine.h
@@ -63,11 +63,22 @@ elf_machine_load_address (void)
{
Elf64_Addr addr;
+#ifdef SHARED
__asm__( " larl %0,_dl_start\n"
" larl 1,_GLOBAL_OFFSET_TABLE_\n"
" lghi 2,_dl_start@GOT\n"
" slg %0,0(2,1)"
: "=&d" (addr) : : "1", "2" );
+#else
+ extern Elf64_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ __asm__( " larl %0,_dl_relocate_static_pie\n"
+ " larl 1,_GLOBAL_OFFSET_TABLE_\n"
+ " lghi 2,_dl_relocate_static_pie@GOT\n"
+ " slg %0,0(2,1)"
+ : "=&d" (addr) : : "1", "2" );
+#endif
return addr;
}
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=38058cd986addc67113b5e9017cddfb90a614399
commit 38058cd986addc67113b5e9017cddfb90a614399
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:51:41 2017 -0700
powerpc: Support --enable-static-pie
powerpc uses _DYNAMIC to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/powerpc/powerpc32/dl-machine.h (elf_machine_load_address):
Return 0 if _DYNAMIC is undefined for static executable.
* sysdeps/powerpc/powerpc64/dl-machine.h (elf_machine_load_address):
Likewise.
diff --git a/sysdeps/powerpc/powerpc32/dl-machine.h b/sysdeps/powerpc/powerpc32/dl-machine.h
index 1f8437e..9cf876e 100644
--- a/sysdeps/powerpc/powerpc32/dl-machine.h
+++ b/sysdeps/powerpc/powerpc32/dl-machine.h
@@ -64,6 +64,11 @@ elf_machine_dynamic (void)
static inline Elf32_Addr __attribute__ ((const))
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf32_Addr *branchaddr;
Elf32_Addr runtime_dynamic;
diff --git a/sysdeps/powerpc/powerpc64/dl-machine.h b/sysdeps/powerpc/powerpc64/dl-machine.h
index aeb91b8..3c67f83 100644
--- a/sysdeps/powerpc/powerpc64/dl-machine.h
+++ b/sysdeps/powerpc/powerpc64/dl-machine.h
@@ -90,6 +90,11 @@ elf_machine_load_address (void) __attribute__ ((const));
static inline Elf64_Addr
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf64_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf64_Addr ret;
/* The first entry in .got (and thus the first entry in .toc) is the
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=2a3db3f8e38e13d0fb8615b2440a8e1e166594b4
commit 2a3db3f8e38e13d0fb8615b2440a8e1e166594b4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:50:10 2017 -0700
nios2: Support --enable-static-pie
nios2 uses a local label to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/nios2/dl-machine.h (elf_machine_dynamic): Return 0 if
_DYNAMIC is undefined for static executable.
diff --git a/sysdeps/nios2/dl-machine.h b/sysdeps/nios2/dl-machine.h
index b5fdd9b..85ff35d 100644
--- a/sysdeps/nios2/dl-machine.h
+++ b/sysdeps/nios2/dl-machine.h
@@ -53,6 +53,11 @@ elf_machine_dynamic (void)
static inline Elf32_Addr
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf32_Addr result;
int tmp;
asm ("nextpc\t%0\n\t"
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=ff369563e2390cfa0f582bcf74a801c05beb6bd3
commit ff369563e2390cfa0f582bcf74a801c05beb6bd3
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:48:28 2017 -0700
mips: Support --enable-static-pie
mips uses a local label to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/mips/dl-machine.h (elf_machine_dynamic): Return 0 if
_DYNAMIC is undefined for static executable.
diff --git a/sysdeps/mips/dl-machine.h b/sysdeps/mips/dl-machine.h
index da9d633..b4fee49 100644
--- a/sysdeps/mips/dl-machine.h
+++ b/sysdeps/mips/dl-machine.h
@@ -147,6 +147,11 @@ elf_machine_dynamic (void)
static inline ElfW(Addr)
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern ElfW(Dyn) _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
ElfW(Addr) addr;
#ifndef __mips16
asm (" .set noreorder\n"
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=709b1503deae5a8da2caba98fd1f19ebbebfc63a
commit 709b1503deae5a8da2caba98fd1f19ebbebfc63a
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:47:20 2017 -0700
microblaze: Support --enable-static-pie
microblaze uses _DYNAMIC to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/microblaze/dl-machine.h (elf_machine_load_address):
Return 0 if _DYNAMIC is undefined for static executable.
diff --git a/sysdeps/microblaze/dl-machine.h b/sysdeps/microblaze/dl-machine.h
index 9481ff1..c416cdb 100644
--- a/sysdeps/microblaze/dl-machine.h
+++ b/sysdeps/microblaze/dl-machine.h
@@ -57,6 +57,11 @@ elf_machine_load_address (void)
by a GOTOFF reference, and the link-time address found in the special
unrelocated first GOT entry. */
+#ifndef SHARED
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf32_Addr dyn;
__asm__ __volatile__ (
"addik %0,r20,_DYNAMIC@GOTOFF"
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=270d63d3e5a4eb3b4017741e4b26884c80271428
commit 270d63d3e5a4eb3b4017741e4b26884c80271428
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:46:26 2017 -0700
m68k: Support --enable-static-pie
When --enable-static-pie is used to configure glibc, we need to use
_dl_relocate_static_pie to compute load address in static PIE.
* sysdeps/m68k/dl-machine.h (elf_machine_load_address): Use
_dl_relocate_static_pie instead of _dl_start to compute load
address in static PIE. Return 0 if _DYNAMIC is undefined for
static executable.
diff --git a/sysdeps/m68k/dl-machine.h b/sysdeps/m68k/dl-machine.h
index fd8fb00..a9a1900 100644
--- a/sysdeps/m68k/dl-machine.h
+++ b/sysdeps/m68k/dl-machine.h
@@ -51,9 +51,18 @@ static inline Elf32_Addr
elf_machine_load_address (void)
{
Elf32_Addr addr;
+#ifdef SHARED
asm (PCREL_OP ("lea", "_dl_start", "%0", "%0", "%%pc") "\n\t"
"sub.l _dl_start@GOT.w(%%a5), %0"
: "=a" (addr));
+#else
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ asm (PCREL_OP ("lea", "_dl_relocate_static_pie", "%0", "%0", "%%pc") "\n\t"
+ "sub.l _dl_relocate_static_pie@GOT.w(%%a5), %0"
+ : "=a" (addr));
+#endif
return addr;
}
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=bade64c082d17b5de4131a71d0fa4e73d663e9a4
commit bade64c082d17b5de4131a71d0fa4e73d663e9a4
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:44:46 2017 -0700
ia64: Support --enable-static-pie
ia64 uses a local label to compute load address, which works with static
PIE. We just need to return 0 if _DYNAMIC is undefined for static
executable.
* sysdeps/ia64/dl-machine.h (elf_machine_dynamic): Return 0 if
_DYNAMIC is undefined for static executable.
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h
index b56f1c8..76675e2 100644
--- a/sysdeps/ia64/dl-machine.h
+++ b/sysdeps/ia64/dl-machine.h
@@ -79,6 +79,11 @@ elf_machine_dynamic (void)
static inline Elf64_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf64_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf64_Addr ip;
int *p;
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=95a6a5aadd00d3360a1c082f816f37b0cb784f33
commit 95a6a5aadd00d3360a1c082f816f37b0cb784f33
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:42:18 2017 -0700
hppa: Support --enable-static-pie
hppa uses _DYNAMIC to compute load address, which works with static PIE.
We just need to return 0 if _DYNAMIC is undefined for static executable.
* sysdeps/hppa/dl-machine.h (elf_machine_load_address): Return 0
if _DYNAMIC is undefined for static executable.
diff --git a/sysdeps/hppa/dl-machine.h b/sysdeps/hppa/dl-machine.h
index acfb9fc..02af505 100644
--- a/sysdeps/hppa/dl-machine.h
+++ b/sysdeps/hppa/dl-machine.h
@@ -97,6 +97,11 @@ elf_machine_load_address (void) __attribute__ ((const));
static inline Elf32_Addr
elf_machine_load_address (void)
{
+#ifndef SHARED
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+#endif
Elf32_Addr dynamic;
asm (
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=d4a3cb8f1cc09c78c5df0adab782e410b4ee7972
commit d4a3cb8f1cc09c78c5df0adab782e410b4ee7972
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:41:02 2017 -0700
arm: Support --enable-static-pie
When --enable-static-pie is used to configure glibc, we need to use
_dl_relocate_static_pie to compute load address in static PIE.
* sysdeps/arm/dl-machine.h (elf_machine_load_address): Use
_dl_relocate_static_pie instead of _dl_start to compute load
address in static PIE. Return 0 if _DYNAMIC is undefined for
static executable.
diff --git a/sysdeps/arm/dl-machine.h b/sysdeps/arm/dl-machine.h
index 7d733f2..efe2e1b 100644
--- a/sysdeps/arm/dl-machine.h
+++ b/sysdeps/arm/dl-machine.h
@@ -53,10 +53,20 @@ elf_machine_dynamic (void)
static inline Elf32_Addr __attribute__ ((unused))
elf_machine_load_address (void)
{
+ Elf32_Addr pcrel_addr;
+#ifdef SHARED
extern Elf32_Addr __dl_start (void *) asm ("_dl_start");
Elf32_Addr got_addr = (Elf32_Addr) &__dl_start;
- Elf32_Addr pcrel_addr;
asm ("adr %0, _dl_start" : "=r" (pcrel_addr));
+#else
+ extern Elf32_Dyn _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ extern Elf32_Addr __dl_relocate_static_pie (void *)
+ asm ("_dl_relocate_static_pie") attribute_hidden;
+ Elf32_Addr got_addr = (Elf32_Addr) &__dl_relocate_static_pie;
+ asm ("adr %0, _dl_relocate_static_pie" : "=r" (pcrel_addr));
+#endif
#ifdef __thumb__
/* Clear the low bit of the function address.
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=6676b49dbff2460a5d0cd208a9de9ea8e9b07131
commit 6676b49dbff2460a5d0cd208a9de9ea8e9b07131
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 14:36:33 2017 -0700
aarch64: Support --enable-static-pie
When --enable-static-pie is used to configure glibc, we need to use
_dl_relocate_static_pie to compute load address in static PIE.
* sysdeps/aarch64/dl-machine.h (elf_machine_load_address): Use
_dl_relocate_static_pie instead of _dl_start to compute load
address in static PIE. Return 0 if _DYNAMIC is undefined for
static executable.
diff --git a/sysdeps/aarch64/dl-machine.h b/sysdeps/aarch64/dl-machine.h
index 6047203..6f259f1 100644
--- a/sysdeps/aarch64/dl-machine.h
+++ b/sysdeps/aarch64/dl-machine.h
@@ -61,6 +61,7 @@ elf_machine_load_address (void)
ElfW(Addr) static_addr;
ElfW(Addr) dynamic_addr;
+#ifdef SHARED
asm (" \n"
" adrp %1, _dl_start; \n"
#ifdef __LP64__
@@ -84,6 +85,34 @@ elf_machine_load_address (void)
#endif
"2: \n"
: "=r" (static_addr), "=r" (dynamic_addr));
+#else
+ extern ElfW(Dyn) _DYNAMIC[] __attribute__((weak, visibility ("hidden")));
+ if (!_DYNAMIC)
+ return 0;
+ asm (" \n"
+" adrp %1, _dl_relocate_static_pie; \n"
+#ifdef __LP64__
+" add %1, %1, #:lo12:_dl_relocate_static_pie \n"
+#else
+" add %w1, %w1, #:lo12:_dl_relocate_static_pie\n"
+#endif
+" ldr %w0, 1f \n"
+" b 2f \n"
+"1: \n"
+#ifdef __LP64__
+" .word _dl_relocate_static_pie \n"
+#else
+# ifdef __AARCH64EB__
+" .short 0 \n"
+# endif
+" .short _dl_relocate_static_pie \n"
+# ifndef __AARCH64EB__
+" .short 0 \n"
+# endif
+#endif
+"2: \n"
+ : "=r" (static_addr), "=r" (dynamic_addr));
+#endif
return dynamic_addr - static_addr;
}
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=83e0279653db113e6db2bc8b37772ae2c385b7e3
commit 83e0279653db113e6db2bc8b37772ae2c385b7e3
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Tue Aug 22 15:37:10 2017 -0700
Don't use hidden visibility in libc.a with PIE on i386
On i386, when multi-arch is enabled, all external functions must be
called via PIC PLT in PIE, which requires setting up EBX register,
since they may be IFUNC functions.
* config.h.in (NO_HIDDEN_EXTERN_FUNC_IN_PIE): New.
* include/libc-symbols.h (__hidden_proto_hiddenattr): Add check
for PIC and NO_HIDDEN_EXTERN_FUNC_IN_PIE.
* sysdeps/i386/configure.ac (NO_HIDDEN_EXTERN_FUNC_IN_PIE): New
AC_DEFINE if multi-arch is enabled.
* sysdeps/i386/configure: Regenerated.
diff --git a/config.h.in b/config.h.in
index 26ed786..d397eea 100644
--- a/config.h.in
+++ b/config.h.in
@@ -86,6 +86,10 @@
#undef PI_STATIC_AND_HIDDEN
/* Define this to disable the 'hidden_proto' et al macros in
+ include/libc-symbols.h that avoid PLT slots in PIE. */
+#undef NO_HIDDEN_EXTERN_FUNC_IN_PIE
+
+/* Define this to disable the 'hidden_proto' et al macros in
include/libc-symbols.h that avoid PLT slots in the shared objects. */
#undef NO_HIDDEN
diff --git a/include/libc-symbols.h b/include/libc-symbols.h
index 10fd206..3881a2b 100644
--- a/include/libc-symbols.h
+++ b/include/libc-symbols.h
@@ -507,6 +507,7 @@ for linking")
#else
# ifndef __ASSEMBLER__
# if !defined SHARED && IS_IN (libc) && !defined LIBC_NONSHARED \
+ && (!defined PIC || !defined NO_HIDDEN_EXTERN_FUNC_IN_PIE) \
&& !defined NO_HIDDEN
# define __hidden_proto_hiddenattr(attrs...) \
__attribute__ ((visibility ("hidden"), ##attrs))
diff --git a/sysdeps/i386/configure b/sysdeps/i386/configure
index 4d6685f..4cf968d 100644
--- a/sysdeps/i386/configure
+++ b/sysdeps/i386/configure
@@ -26,7 +26,7 @@ libc_compiler_builtin_inlined=no
cat > conftest.c <<EOF
int _start (void) { int a, b, c; __sync_val_compare_and_swap (&a, b, c); return 0; }
EOF
-if ! { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS
+if ! { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
-O0 -nostdlib -nostartfiles
-S conftest.c -o - | fgrep "__sync_val_compare_and_swap"
1>&5'
@@ -79,3 +79,8 @@ fi
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
+
+if test x"$multi_arch" != xno; then
+ $as_echo "#define NO_HIDDEN_EXTERN_FUNC_IN_PIE 1" >>confdefs.h
+
+fi
diff --git a/sysdeps/i386/configure.ac b/sysdeps/i386/configure.ac
index f7766ad..b598b12 100644
--- a/sysdeps/i386/configure.ac
+++ b/sysdeps/i386/configure.ac
@@ -48,3 +48,9 @@ fi
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)
+
+dnl When multi-arch is enabled, all external functions must be called
+dnl via PIC PLT in PIE, which requires setting up EBX register.
+if test x"$multi_arch" != xno; then
+ AC_DEFINE(NO_HIDDEN_EXTERN_FUNC_IN_PIE)
+fi
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=0a67dfd8d19cc73984aa47050027eeb6c5caa71c
commit 0a67dfd8d19cc73984aa47050027eeb6c5caa71c
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Jul 17 08:17:32 2017 -0700
Add --enable-static-pie configure option to build static PIE
Dynamic linker, ld.so, is a standalone program which can be loaded at
any address. This patch adds a configure option, --enable-static-pie,
to embed the part of ld.so in static executable to create static position
independent executable (static PIE). A static PIE is similar to static
executable, but can be loaded at any address without help from a dynamic
linker. When --enable-static-pie is used to configure glibc, libc.a is
built as PIE and all static executables, including tests, are built as
static PIE. The resulting libc.a can be used together with GCC 8 or
above to build static PIE with the compiler option, -static-pie. But
GCC 8 isn't required to build glibc with --enable-static-pie. When an
older GCC is used to build glibc with --enable-static-pie, proper input
files are passed to linker to create static executables as static PIE,
together with "-z text" to prevent dynamic relocations in read-only
segments, which are allowed in static PIE.
Static PIE can work on all architectures which support PIE, provided
1. start.S is updated to check PIC instead SHARED for PIC code path and
avoid dynamic relocation, when PIC is defined and SHARED isn't defined,
to support static PIE. Patches are submitted for aarch64, arm, hppa,
m68k, microblaze and sparc.
2. All assembly codes are updated check PIC instead SHARED for PIC code
path to avoid dynamic relocations in read-only sections.
3. All assembly codes are updated check SHARED instead PIC for static
symbol name. A patch is submitted for tile.
4. elf_machine_dynamic and elf_machine_load_address in dl-machine.h are
updated to support static PIE. Patches are submitted for aarch64, arm,
hppa, ia64, m68k, microblaze, mips, nios2, powerpc, s390, sh, sparc and
tile.
NB: When glibc is built with GCC defaulted to PIE, libc.a is compiled
with -fPIE, regardless if --enable-static-pie is used to configure glibc.
When glibc is configured with --enable-static-pie, libc.a is compiled
with -fPIE, regardless wether GCC defaults to PIE or not. The same libc.a
can be used to build both static executable and static PIE. There is no
need for separate PIE copy of libc.a.
Linker requirements to build glibc with --enable-static-pie:
1. Linker supports --no-dynamic-linker to remove PT_INTERP segment from
static PIE.
2. Linker can create working static PIE. The x86-64 linker needs the
fix for
https://sourceware.org/bugzilla/show_bug.cgi?id=21782
Binutils 2.29 or above are OK for x86-64. But linker status for other
targets need to be verified.
Tested on i686 and x86-64.
Build results of build-many-glibcs.py with --enable-static-pie with all
patches for static PIE applied are
PASS: glibcs-aarch64_be-linux-gnu build
PASS: glibcs-aarch64-linux-gnu build
PASS: glibcs-armeb-linux-gnueabi build
PASS: glibcs-armeb-linux-gnueabi-be8 build
PASS: glibcs-armeb-linux-gnueabihf build
PASS: glibcs-armeb-linux-gnueabihf-be8 build
PASS: glibcs-arm-linux-gnueabi build
PASS: glibcs-arm-linux-gnueabihf build
PASS: glibcs-hppa-linux-gnu build
PASS: glibcs-i486-linux-gnu build
PASS: glibcs-i586-linux-gnu build
PASS: glibcs-i686-linux-gnu build
PASS: glibcs-i686-linux-gnu-disable-multi-arch build
PASS: glibcs-m68k-linux-gnu build
PASS: glibcs-microblazeel-linux-gnu build
PASS: glibcs-microblaze-linux-gnu build
PASS: glibcs-mips64el-linux-gnu-n64 build
PASS: glibcs-mips64el-linux-gnu-n64-nan2008 build
PASS: glibcs-mips64el-linux-gnu-n64-nan2008-soft build
PASS: glibcs-mips64el-linux-gnu-n64-soft build
PASS: glibcs-mips64-linux-gnu-n64 build
PASS: glibcs-mips64-linux-gnu-n64-nan2008 build
PASS: glibcs-mips64-linux-gnu-n64-nan2008-soft build
PASS: glibcs-mips64-linux-gnu-n64-soft build
PASS: glibcs-nios2-linux-gnu build
PASS: glibcs-powerpc64le-linux-gnu build
PASS: glibcs-powerpc64-linux-gnu build
PASS: glibcs-s390x-linux-gnu build
PASS: glibcs-x86_64-linux-gnu build
PASS: glibcs-x86_64-linux-gnu-disable-multi-arch build
PASS: glibcs-x86_64-linux-gnu-x32 build
FAIL: glibcs-alpha-linux-gnu build
elf/sln is failed to link due to:
assertion fail bfd/elf64-alpha.c:4125
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-ia64-linux-gnu build
elf/sln is failed to link due to:
libc.a(sched_yield.o): non-pic code with imm relocation against dynamic symbol `_dl_sysinfo'
This is caused by non-PICi version of DO_CALL macro in ia64 sysdep.h. PIE
libc.a should use PIC version of DO_CALL, except during startup in static
PIE. An ia64 startup.h, similar to i386 startup.h, is needed to handle
this.
FAIL: glibcs-mips64el-linux-gnu-n32 build
FAIL: glibcs-mips64el-linux-gnu-n32-nan2008 build
FAIL: glibcs-mips64el-linux-gnu-n32-nan2008-soft build
FAIL: glibcs-mips64el-linux-gnu-n32-soft build
FAIL: glibcs-mips64-linux-gnu-n32 build
FAIL: glibcs-mips64-linux-gnu-n32-nan2008 build
FAIL: glibcs-mips64-linux-gnu-n32-nan2008-soft build
FAIL: glibcs-mips64-linux-gnu-n32-soft build
FAIL: glibcs-mipsel-linux-gnu build
FAIL: glibcs-mipsel-linux-gnu-nan2008 build
FAIL: glibcs-mipsel-linux-gnu-nan2008-soft build
FAIL: glibcs-mipsel-linux-gnu-soft build
FAIL: glibcs-mips-linux-gnu build
FAIL: glibcs-mips-linux-gnu-nan2008 build
FAIL: glibcs-mips-linux-gnu-nan2008-soft build
FAIL: glibcs-mips-linux-gnu-soft build
elf/sln is failed to link due to:
crt1.o: relocation R_MIPS_HI16 against `_gp' can not be used when making a shared object; recompile with -fPIC
This is caused by linker bug and/or non-PIC code in crt1.o.
FAIL: glibcs-powerpc-linux-gnu build
FAIL: glibcs-powerpc-linux-gnu-soft build
FAIL: glibcs-powerpc-linux-gnuspe build
FAIL: glibcs-powerpc-linux-gnuspe-e500v1 build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-powerpc-linux-gnu-power4 build
elf/sln is failed to link due to:
findlocale.c:96:(.text+0x22c): @local call to ifunc memchr
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-s390-linux-gnu build
elf/sln is failed to link due to:
collect2: fatal error: ld terminated with signal 11 [Segmentation fault], core dumped
assertion fail bfd/elflink.c:14242
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-sh3eb-linux-gnu build
FAIL: glibcs-sh3-linux-gnu build
FAIL: glibcs-sh4eb-linux-gnu build
FAIL: glibcs-sh4eb-linux-gnu-soft build
FAIL: glibcs-sh4-linux-gnu build
FAIL: glibcs-sh4-linux-gnu-soft build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-sparc64-linux-gnu build
FAIL: glibcs-sparcv9-linux-gnu build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a.
FAIL: glibcs-tilegxbe-linux-gnu build
FAIL: glibcs-tilegxbe-linux-gnu-32 build
FAIL: glibcs-tilegx-linux-gnu build
FAIL: glibcs-tilegx-linux-gnu-32 build
FAIL: glibcs-tilepro-linux-gnu build
elf/sln is failed to link due to:
ld: read-only segment has dynamic relocations.
This is caused by linker bug and/or non-PIC code in PIE libc.a.
* INSTALL: Regenerated.
* Makeconfig (pic-default): Updated for --enable-static-pie.
(pie-default): New for --enable-static-pie.
(default-pie-ldflag): Likewise.
(+link-static-before-libc): Add $(default-pie-ldflag).
(+prectorT): Updated for --enable-static-pie.
(+postctorT): Likewise.
(CFLAGS-.o): Add $(pie-default).
(CFLAGS-.op): Likewise.
* NEWS: Mention --enable-static-pie.
* config.h.in (ENABLE_STATIC_PIE): New.
* configure.ac (--enable-static-pie): New configure option.
(have-no-dynamic-linker): New LIBC_CONFIG_VAR.
(have-static-pie): Likewise.
Enable static PIE if linker supports --no-dynamic-linker.
(ENABLE_STATIC_PIE): New AC_DEFINE.
(enable-static-pie): New LIBC_CONFIG_VAR.
* configure: Regenerated.
* csu/libc-start.c (LIBC_START_MAIN): Call _dl_relocate_static_pie
in libc.a.
* csu/libc-tls.c (__libc_setup_tls): Add main_map->l_addr to
initimage.
* elf/dl-support.c: Include "dynamic-link.h" and don't include
"get-dynamic-info.h" for --enable-static-pie.
(_dl_relocate_static_pie): New function for --enable-static-pie.
(STATIC_PIE_BOOTSTRAP): New for --enable-static-pie.
(BOOTSTRAP_MAP): Likewise.
(RESOLVE_MAP): Likewise.
* elf/dynamic-link.h (ELF_DURING_STARTUP): Also check
STATIC_PIE_BOOTSTRAP.
* elf/get-dynamic-info.h (elf_get_dynamic_info): Likewise.
* manual/install.texi: Document --enable-static-pie.
* sysdeps/generic/ldsodefs.h (_dl_relocate_static_pie): New.
* sysdeps/x86_64/configure.ac: Check if linker supports static PIE.
* sysdeps/x86_64/configure: Regenerated.
diff --git a/INSTALL b/INSTALL
index 4d9024c..55361a0 100644
--- a/INSTALL
+++ b/INSTALL
@@ -106,6 +106,14 @@ will be used, and CFLAGS sets optimization options for the compiler.
systems support shared libraries; you need ELF support and
(currently) the GNU linker.
+'--enable-static-pie'
+ Build static executables, including tests, as position independent
+ executable (static PIE) which is similar to static executable, but
+ can be loaded at any address without help from a dynamic linker.
+ The resulting libc.a can be used with the GCC option, -static-pie,
+ which is available with GCC 8 or above, to create static PIE. Only
+ i686, x86-64 and x32 targets are verified to work.
+
'--disable-profile'
Don't build libraries with profiling information. You may want to
use this option if you don't plan to do profiling.
diff --git a/Makeconfig b/Makeconfig
index b51904b..b45209f 100644
--- a/Makeconfig
+++ b/Makeconfig
@@ -386,6 +386,16 @@ LDFLAGS.so += $(hashstyle-LDFLAGS)
LDFLAGS-rtld += $(hashstyle-LDFLAGS)
endif
+ifeq (yes,$(enable-static-pie))
+pic-default = -DPIC
+pie-default = $(pie-ccflag)
+ifeq (yes,$(have-static-pie))
+default-pie-ldflag = -static-pie
+else
+default-pie-ldflag = -Wl,-pie,--no-dynamic-linker,--eh-frame-hdr,-z,text
+endif
+endif
+
# If lazy relocations are disabled, add the -z now flag. Use
# LDFLAGS-lib.so instead of LDFLAGS.so, to avoid adding the flag to
# test modules.
@@ -435,6 +445,7 @@ endif
# Command for statically linking programs with the C library.
ifndef +link-static
+link-static-before-libc = $(CC) -nostdlib -nostartfiles -static -o $@ \
+ $(default-pie-ldflag) \
$(sysdep-LDFLAGS) $(LDFLAGS) $(LDFLAGS-$(@F)) \
$(addprefix $(csu-objpfx),$(static-start-installed-name)) \
$(+preinit) $(+prectorT) \
@@ -651,8 +662,13 @@ endif
+prectorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginS.o`
+postctorS = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtendS.o`
# Variants of the two previous definitions for statically linking programs.
+ifeq (yes,$(enable-static-pie))
++prectorT = $(+prectorS)
++postctorT = $(+postctorS)
+else
+prectorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtbeginT.o`
+postctorT = `$(CC) $(sysdep-LDFLAGS) --print-file-name=crtend.o`
+endif
csu-objpfx = $(common-objpfx)csu/
elf-objpfx = $(common-objpfx)elf/
@@ -973,7 +989,7 @@ libtypes = $(foreach o,$(object-suffixes-for-libc),$(libtype$o))
all-object-suffixes := .o .os .oS
object-suffixes :=
CPPFLAGS-.o = $(pic-default)
-CFLAGS-.o = $(filter %frame-pointer,$(+cflags))
+CFLAGS-.o = $(filter %frame-pointer,$(+cflags)) $(pie-default)
libtype.o := lib%.a
object-suffixes += .o
ifeq (yes,$(build-shared))
@@ -998,7 +1014,7 @@ ifeq (yes,$(build-profile))
all-object-suffixes += .op
object-suffixes += .op
CPPFLAGS-.op = -DPROF $(pic-default)
-CFLAGS-.op = -pg
+CFLAGS-.op = -pg $(pie-default)
libtype.op = lib%_p.a
endif
diff --git a/NEWS b/NEWS
index f582141..60f5def 100644
--- a/NEWS
+++ b/NEWS
@@ -9,6 +9,12 @@ Version 2.27
Major new features:
+* Add --enable-static-pie configure option to build static PIE. The
+ resulting libc.a can be used with the GCC option, -static-pie, which
+ is available with GCC 8 or above, to create static position independent
+ executable (static PIE). Only i686, x86-64 and x32 targets are verified
+ to work.
+
* Optimized x86-64 asin, atan2, exp, expf, log, pow, atan, sin and tan
with FMA, contributed by Arjan van de Ven and H.J. Lu from Intel.
diff --git a/config.h.in b/config.h.in
index 014fb4e..26ed786 100644
--- a/config.h.in
+++ b/config.h.in
@@ -236,6 +236,9 @@
/* Build glibc with tunables support. */
#define HAVE_TUNABLES 0
+/* Define if static PIE is enabled. */
+#define ENABLE_STATIC_PIE 0
+
/* Some compiler options may now allow to use ebp in __asm__ (used mainly
in i386 6 argument syscall issue). */
#define CAN_USE_REGISTER_ASM_EBP 0
diff --git a/configure b/configure
index 067d92d..cd5cf57 100755
--- a/configure
+++ b/configure
@@ -767,6 +767,7 @@ with_default_link
enable_sanity_checks
enable_shared
enable_profile
+enable_static_pie
enable_timezone_tools
enable_hardcoded_path_in_tests
enable_stackguard_randomization
@@ -1424,6 +1425,7 @@ Optional Features:
in special situations) [default=yes]
--enable-shared build shared library [default=yes if GNU ld]
--enable-profile build profiled library [default=no]
+ --enable-static-pie build static executables as PIE [default=no]
--disable-timezone-tools
do not install timezone tools [default=install]
--enable-hardcoded-path-in-tests
@@ -3372,6 +3374,13 @@ else
profile=no
fi
+# Check whether --enable-static-pie was given.
+if test "${enable_static_pie+set}" = set; then :
+ enableval=$enable_static_pie; static_pie=$enableval
+else
+ static_pie=no
+fi
+
# Check whether --enable-timezone-tools was given.
if test "${enable_timezone_tools+set}" = set; then :
enableval=$enable_timezone_tools; enable_timezone_tools=$enableval
@@ -5994,6 +6003,62 @@ fi
$as_echo "$libc_linker_feature" >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker that supports --no-dynamic-linker" >&5
+$as_echo_n "checking for linker that supports --no-dynamic-linker... " >&6; }
+libc_linker_feature=no
+if test x"$gnu_ld" = x"yes"; then
+ libc_linker_check=`$LD -v --help 2>/dev/null | grep "\--no-dynamic-linker"`
+ if test -n "$libc_linker_check"; then
+ cat > conftest.c <<EOF
+int _start (void) { return 42; }
+EOF
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS $no_ssp
+ -Wl,--no-dynamic-linker -nostdlib -nostartfiles
+ -fPIC -shared -o conftest.so conftest.c
+ 1>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }
+ then
+ libc_linker_feature=yes
+ fi
+ rm -f conftest*
+ fi
+fi
+if test $libc_linker_feature = yes; then
+ libc_cv_no_dynamic_linker=yes
+else
+ libc_cv_no_dynamic_linker=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_linker_feature" >&5
+$as_echo "$libc_linker_feature" >&6; }
+config_vars="$config_vars
+have-no-dynamic-linker = $libc_cv_no_dynamic_linker"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -static-pie" >&5
+$as_echo_n "checking for -static-pie... " >&6; }
+if ${libc_cv_static_pie+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if { ac_try='${CC-cc} -static-pie -xc /dev/null -S -o /dev/null'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ libc_cv_static_pie=yes
+else
+ libc_cv_static_pie=no
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_static_pie" >&5
+$as_echo "$libc_cv_static_pie" >&6; }
+config_vars="$config_vars
+have-static-pie = $libc_cv_static_pie"
+
{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for -fpie" >&5
$as_echo_n "checking for -fpie... " >&6; }
if ${libc_cv_fpie+:} false; then :
@@ -6888,6 +6953,19 @@ fi
$as_echo "$libc_cv_pie_default" >&6; }
+if test "$static_pie" = yes; then
+ # The linker must support --no-dynamic-linker.
+ if test "$libc_cv_no_dynamic_linker" != yes; then
+ as_fn_error $? "linker support for --no-dynamic-linker needed" "$LINENO" 5
+ fi
+ # Default to PIE.
+ libc_cv_pie_default=yes
+ $as_echo "#define ENABLE_STATIC_PIE 1" >>confdefs.h
+
+fi
+config_vars="$config_vars
+enable-static-pie = $static_pie"
+
diff --git a/configure.ac b/configure.ac
index d412104..09e1c7f 100644
--- a/configure.ac
+++ b/configure.ac
@@ -176,6 +176,11 @@ AC_ARG_ENABLE([profile],
[build profiled library @<:@default=no@:>@]),
[profile=$enableval],
[profile=no])
+AC_ARG_ENABLE([static-pie],
+ AC_HELP_STRING([--enable-static-pie],
+ [build static executables as PIE @<:@default=no@:>@]),
+ [static_pie=$enableval],
+ [static_pie=no])
AC_ARG_ENABLE([timezone-tools],
AC_HELP_STRING([--disable-timezone-tools],
[do not install timezone tools @<:@default=install@:>@]),
@@ -1460,6 +1465,19 @@ LIBC_LINKER_FEATURE([-z execstack], [-Wl,-z,execstack],
[libc_cv_z_execstack=yes], [libc_cv_z_execstack=no])
AC_SUBST(libc_cv_z_execstack)
+LIBC_LINKER_FEATURE([--no-dynamic-linker],
+ [-Wl,--no-dynamic-linker],
+ [libc_cv_no_dynamic_linker=yes],
+ [libc_cv_no_dynamic_linker=no])
+LIBC_CONFIG_VAR([have-no-dynamic-linker], [$libc_cv_no_dynamic_linker])
+
+AC_CACHE_CHECK(for -static-pie, libc_cv_static_pie, [dnl
+LIBC_TRY_CC_OPTION([-static-pie],
+ [libc_cv_static_pie=yes],
+ [libc_cv_static_pie=no])
+])
+LIBC_CONFIG_VAR([have-static-pie], [$libc_cv_static_pie])
+
AC_CACHE_CHECK(for -fpie, libc_cv_fpie, [dnl
LIBC_TRY_CC_OPTION([-fpie], [libc_cv_fpie=yes], [libc_cv_fpie=no])
])
@@ -1962,6 +1980,17 @@ fi
rm -f conftest.*])
AC_SUBST(libc_cv_pie_default)
+if test "$static_pie" = yes; then
+ # The linker must support --no-dynamic-linker.
+ if test "$libc_cv_no_dynamic_linker" != yes; then
+ AC_MSG_ERROR([linker support for --no-dynamic-linker needed])
+ fi
+ # Default to PIE.
+ libc_cv_pie_default=yes
+ AC_DEFINE(ENABLE_STATIC_PIE)
+fi
+LIBC_CONFIG_VAR([enable-static-pie], [$static_pie])
+
AC_SUBST(profile)
AC_SUBST(static_nss)
diff --git a/csu/libc-start.c b/csu/libc-start.c
index 24c63be..34dd125 100644
--- a/csu/libc-start.c
+++ b/csu/libc-start.c
@@ -141,6 +141,8 @@ LIBC_START_MAIN (int (*main) (int, char **, char ** MAIN_AUXVEC_DECL),
__libc_multiple_libcs = &_dl_starting_up && !_dl_starting_up;
#ifndef SHARED
+ _dl_relocate_static_pie ();
+
char **ev = &argv[argc + 1];
__environ = ev;
diff --git a/csu/libc-tls.c b/csu/libc-tls.c
index 00138eb..1f8ddaf 100644
--- a/csu/libc-tls.c
+++ b/csu/libc-tls.c
@@ -114,6 +114,8 @@ __libc_setup_tls (void)
size_t tcb_offset;
const ElfW(Phdr) *phdr;
+ struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
+
/* Look through the TLS segment if there is any. */
if (_dl_phdr != NULL)
for (phdr = _dl_phdr; phdr < &_dl_phdr[_dl_phnum]; ++phdr)
@@ -122,7 +124,7 @@ __libc_setup_tls (void)
/* Remember the values we need. */
memsz = phdr->p_memsz;
filesz = phdr->p_filesz;
- initimage = (void *) phdr->p_vaddr;
+ initimage = (void *) phdr->p_vaddr + main_map->l_addr;
align = phdr->p_align;
if (phdr->p_align > max_align)
max_align = phdr->p_align;
@@ -163,8 +165,6 @@ __libc_setup_tls (void)
_dl_static_dtv[0].counter = (sizeof (_dl_static_dtv) / sizeof (_dl_static_dtv[0])) - 2;
// _dl_static_dtv[1].counter = 0; would be needed if not already done
- struct link_map *main_map = GL(dl_ns)[LM_ID_BASE]._ns_loaded;
-
/* Initialize the TLS block. */
#if TLS_TCB_AT_TP
_dl_static_dtv[2].pointer.val = ((char *) tlsblock + tcb_offset
diff --git a/elf/dl-support.c b/elf/dl-support.c
index 5e3de90..150ec00 100644
--- a/elf/dl-support.c
+++ b/elf/dl-support.c
@@ -26,7 +26,11 @@
#include <sys/param.h>
#include <stdint.h>
#include <ldsodefs.h>
-#include <dl-machine.h>
+#if ENABLE_STATIC_PIE
+# include "dynamic-link.h"
+#else
+# include <dl-machine.h>
+#endif
#include <libc-lock.h>
#include <dl-cache.h>
#include <dl-librecon.h>
@@ -199,7 +203,9 @@ const ElfW(Ehdr) *_dl_sysinfo_dso;
struct link_map *_dl_sysinfo_map;
-# include "get-dynamic-info.h"
+# if !ENABLE_STATIC_PIE
+# include "get-dynamic-info.h"
+# endif
#endif
#include "setup-vdso.h"
@@ -302,6 +308,40 @@ _dl_aux_init (ElfW(auxv_t) *av)
}
#endif
+#if ENABLE_STATIC_PIE
+/* Relocate static executable with PIE. */
+
+void
+_dl_relocate_static_pie (void)
+{
+# define STATIC_PIE_BOOTSTRAP
+# define BOOTSTRAP_MAP (&_dl_main_map)
+# define RESOLVE_MAP(sym, version, flags) BOOTSTRAP_MAP
+# include "dynamic-link.h"
+
+ /* Figure out the run-time load addres of static PIE. */
+ _dl_main_map.l_addr = elf_machine_load_address ();
+
+ /* Skip if this is a non-PIE static executable. */
+ if (!_dl_main_map.l_addr)
+ return;
+
+ /* Read our own dynamic section and fill in the info array. */
+ _dl_main_map.l_ld = ((void *) _dl_main_map.l_addr
+ + elf_machine_dynamic ());
+ elf_get_dynamic_info (&_dl_main_map, NULL);
+
+# ifdef ELF_MACHINE_BEFORE_RTLD_RELOC
+ ELF_MACHINE_BEFORE_RTLD_RELOC (_dl_main_map.l_info);
+# endif
+
+ /* Relocate ourselves so we can do normal function calls and
+ data access using the global offset table. */
+ ELF_DYNAMIC_RELOCATE (&_dl_main_map, 0, 0, 0);
+ _dl_main_map.l_relocated = 1;
+}
+#endif
+
void
_dl_non_dynamic_init (void)
diff --git a/elf/dynamic-link.h b/elf/dynamic-link.h
index ebea756..6278649 100644
--- a/elf/dynamic-link.h
+++ b/elf/dynamic-link.h
@@ -94,7 +94,7 @@ elf_machine_lazy_rel (struct link_map *map,
#ifdef RESOLVE_MAP
-# ifdef RTLD_BOOTSTRAP
+# if defined RTLD_BOOTSTRAP || defined STATIC_PIE_BOOTSTRAP
# define ELF_DURING_STARTUP (1)
# else
# define ELF_DURING_STARTUP (0)
diff --git a/elf/get-dynamic-info.h b/elf/get-dynamic-info.h
index 7525c3a..eb26d23 100644
--- a/elf/get-dynamic-info.h
+++ b/elf/get-dynamic-info.h
@@ -38,7 +38,7 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
typedef Elf64_Xword d_tag_utype;
#endif
-#ifndef RTLD_BOOTSTRAP
+#if !defined RTLD_BOOTSTRAP && !defined STATIC_PIE_BOOTSTRAP
if (dyn == NULL)
return;
#endif
@@ -139,9 +139,11 @@ elf_get_dynamic_info (struct link_map *l, ElfW(Dyn) *temp)
/* Only the bind now flags are allowed. */
assert (info[VERSYMIDX (DT_FLAGS_1)] == NULL
|| (info[VERSYMIDX (DT_FLAGS_1)]->d_un.d_val & ~DF_1_NOW) == 0);
+ /* Flags must not be set for ld.so. */
assert (info[DT_FLAGS] == NULL
|| (info[DT_FLAGS]->d_un.d_val & ~DF_BIND_NOW) == 0);
- /* Flags must not be set for ld.so. */
+#endif
+#if defined RTLD_BOOTSTRAP || defined STATIC_PIE_BOOTSTRAP
assert (info[DT_RUNPATH] == NULL);
assert (info[DT_RPATH] == NULL);
#else
diff --git a/manual/install.texi b/manual/install.texi
index 35948b1..54df6ab 100644
--- a/manual/install.texi
+++ b/manual/install.texi
@@ -136,6 +136,14 @@ Don't build shared libraries even if it is possible. Not all systems
support shared libraries; you need ELF support and (currently) the GNU
linker.
+@item --enable-static-pie
+Build static executables, including tests, as position independent
+executable (static PIE) which is similar to static executable, but can
+be loaded at any address without help from a dynamic linker. The
+resulting libc.a can be used with the GCC option, -static-pie, which
+is available with GCC 8 or above, to create static PIE. Only i686, x86-64
+and x32 targets are verified to work.
+
@item --disable-profile
Don't build libraries with profiling information. You may want to use
this option if you don't plan to do profiling.
diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h
index 1a4449e..b4c032a 100644
--- a/sysdeps/generic/ldsodefs.h
+++ b/sysdeps/generic/ldsodefs.h
@@ -1048,6 +1048,13 @@ extern void _dl_determine_tlsoffset (void) attribute_hidden;
stack protector, among other things). */
void __libc_setup_tls (void);
+# if ENABLE_STATIC_PIE
+/* Relocate static executable with PIE. */
+void _dl_relocate_static_pie (void) attribute_hidden;
+# else
+# define _dl_relocate_static_pie()
+# endif
+
/* Initialization of libpthread for statically linked applications.
If libpthread is not linked in, this is an empty function. */
void __pthread_initialize_minimal (void) weak_function;
diff --git a/sysdeps/x86_64/configure b/sysdeps/x86_64/configure
index efef46b..8ee15b8 100644
--- a/sysdeps/x86_64/configure
+++ b/sysdeps/x86_64/configure
@@ -85,6 +85,39 @@ if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
+if test "$static_pie" = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for linker static PIE support" >&5
+$as_echo_n "checking for linker static PIE support... " >&6; }
+if ${libc_cv_ld_static_pie+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat > conftest.s <<\EOF
+ .text
+ .global _start
+ .weak foo
+_start:
+ leaq foo(%rip), %rax
+EOF
+ libc_cv_pie_option="-Wl,-pie"
+ if { ac_try='${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_pie_option conftest.s 1>&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_try\""; } >&5
+ (eval $ac_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then
+ libc_cv_ld_static_pie=yes
+ else
+ libc_cv_ld_static_pie=no
+ fi
+rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $libc_cv_ld_static_pie" >&5
+$as_echo "$libc_cv_ld_static_pie" >&6; }
+ if test "$libc_cv_ld_static_pie" != yes; then
+ as_fn_error $? "linker support for static PIE needed" "$LINENO" 5
+ fi
+fi
+
$as_echo "#define PI_STATIC_AND_HIDDEN 1" >>confdefs.h
diff --git a/sysdeps/x86_64/configure.ac b/sysdeps/x86_64/configure.ac
index fa86e95..53e4a82 100644
--- a/sysdeps/x86_64/configure.ac
+++ b/sysdeps/x86_64/configure.ac
@@ -44,6 +44,31 @@ if test x"$build_mathvec" = xnotset; then
build_mathvec=yes
fi
+dnl Check if linker supports static PIE with the fix for
+dnl
+dnl https://sourceware.org/bugzilla/show_bug.cgi?id=21782
+dnl
+if test "$static_pie" = yes; then
+ AC_CACHE_CHECK(for linker static PIE support, libc_cv_ld_static_pie, [dnl
+cat > conftest.s <<\EOF
+ .text
+ .global _start
+ .weak foo
+_start:
+ leaq foo(%rip), %rax
+EOF
+ libc_cv_pie_option="-Wl,-pie"
+ if AC_TRY_COMMAND(${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -nostartfiles -nostdlib $no_ssp $libc_cv_pie_option conftest.s 1>&AS_MESSAGE_LOG_FD); then
+ libc_cv_ld_static_pie=yes
+ else
+ libc_cv_ld_static_pie=no
+ fi
+rm -f conftest*])
+ if test "$libc_cv_ld_static_pie" != yes; then
+ AC_MSG_ERROR([linker support for static PIE needed])
+ fi
+fi
+
dnl It is always possible to access static and hidden symbols in an
dnl position independent way.
AC_DEFINE(PI_STATIC_AND_HIDDEN)
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=e9d1a723c87b636cdb82eea5eff7ea2be78323c0
commit e9d1a723c87b636cdb82eea5eff7ea2be78323c0
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Thu Sep 28 05:11:03 2017 -0700
Add a test for non-PIE static executable
tst-tls1-static-non-pie is built with $(no-pie-ldflag) to make it a
non-PIE static executable, regardless if --enable-static-pie is used
to configure glibc.
* elf/Makefile (tests-static-internal): Add
tst-tls1-static-non-pie.
(LDFLAGS-tst-tls1-static-non-pie): New.
* elf/tst-tls1-static-non-pie.c: New file.
diff --git a/elf/Makefile b/elf/Makefile
index e21f37e..c6edebd 100644
--- a/elf/Makefile
+++ b/elf/Makefile
@@ -149,7 +149,10 @@ tests-static-normal := tst-leaks1-static tst-array1-static tst-array5-static \
tst-tlsalign-static tst-tlsalign-extern-static \
tst-linkall-static tst-env-setuid tst-env-setuid-tunables
tests-static-internal := tst-tls1-static tst-tls2-static \
- tst-ptrguard1-static tst-stackguard1-static
+ tst-ptrguard1-static tst-stackguard1-static \
+ tst-tls1-static-non-pie
+
+LDFLAGS-tst-tls1-static-non-pie = $(no-pie-ldflag)
tests := tst-tls9 tst-leaks1 \
tst-array1 tst-array2 tst-array3 tst-array4 tst-array5 \
diff --git a/elf/tst-tls1-static-non-pie.c b/elf/tst-tls1-static-non-pie.c
new file mode 100644
index 0000000..a010080
--- /dev/null
+++ b/elf/tst-tls1-static-non-pie.c
@@ -0,0 +1 @@
+#include "tst-tls1.c"
http://sourceware.org/git/gitweb.cgi?p=glibc.git;a=commitdiff;h=957b1d418c30056027a66843d14dfe1eb680cd68
commit 957b1d418c30056027a66843d14dfe1eb680cd68
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Fri Sep 29 01:09:48 2017 -0700
ld.so: Replace (&bootstrap_map) with BOOTSTRAP_MAP
(&_dl_main_map) is used instead of (&bootstrap_map) to bootstrap static
PIE. Define BOOTSTRAP_MAP with (&_dl_main_map) to avoid hardcode to
(&bootstrap_map).
* elf/rtld.c (BOOTSTRAP_MAP): New.
(RESOLVE_MAP): Replace (&bootstrap_map) with BOOTSTRAP_MAP.
* sysdeps/hppa/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
* sysdeps/ia64/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
* sysdeps/mips/dl-machine.h (ELF_MACHINE_BEFORE_RTLD_RELOC):
Likewise.
diff --git a/elf/rtld.c b/elf/rtld.c
index d8e75c0..90505ae 100644
--- a/elf/rtld.c
+++ b/elf/rtld.c
@@ -454,7 +454,8 @@ _dl_start (void *arg)
Since ld.so must not have any undefined symbols the result
is trivial: always the map of ld.so itself. */
#define RTLD_BOOTSTRAP
-#define RESOLVE_MAP(sym, version, flags) (&bootstrap_map)
+#define BOOTSTRAP_MAP (&bootstrap_map)
+#define RESOLVE_MAP(sym, version, flags) BOOTSTRAP_MAP
#include "dynamic-link.h"
if (HP_TIMING_INLINE && HP_SMALL_TIMING_AVAIL)
diff --git a/sysdeps/hppa/dl-machine.h b/sysdeps/hppa/dl-machine.h
index e24bd25..acfb9fc 100644
--- a/sysdeps/hppa/dl-machine.h
+++ b/sysdeps/hppa/dl-machine.h
@@ -62,7 +62,7 @@ __hppa_init_bootstrap_fdesc_table (struct link_map *map)
}
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
- __hppa_init_bootstrap_fdesc_table (&bootstrap_map); \
+ __hppa_init_bootstrap_fdesc_table (BOOTSTRAP_MAP); \
_dl_fptr_init();
/* Return nonzero iff ELF header is compatible with the running host. */
diff --git a/sysdeps/ia64/dl-machine.h b/sysdeps/ia64/dl-machine.h
index 8d0d3c9..b56f1c8 100644
--- a/sysdeps/ia64/dl-machine.h
+++ b/sysdeps/ia64/dl-machine.h
@@ -45,7 +45,7 @@ __ia64_init_bootstrap_fdesc_table (struct link_map *map)
}
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
- __ia64_init_bootstrap_fdesc_table (&bootstrap_map);
+ __ia64_init_bootstrap_fdesc_table (BOOTSTRAP_MAP);
/* Return nonzero iff ELF header is compatible with the running host. */
static inline int __attribute__ ((unused))
diff --git a/sysdeps/mips/dl-machine.h b/sysdeps/mips/dl-machine.h
index 74ead7f..da9d633 100644
--- a/sysdeps/mips/dl-machine.h
+++ b/sysdeps/mips/dl-machine.h
@@ -190,7 +190,7 @@ elf_machine_load_address (void)
fiddles with global data. */
#define ELF_MACHINE_BEFORE_RTLD_RELOC(dynamic_info) \
do { \
- struct link_map *map = &bootstrap_map; \
+ struct link_map *map = BOOTSTRAP_MAP; \
ElfW(Sym) *sym; \
ElfW(Addr) *got; \
int i, n; \
-----------------------------------------------------------------------
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--
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