[PATCH v7 00/13] glibc port to ARC processors

Vineet Gupta Vineet.Gupta1@synopsys.com
Tue Jun 23 16:56:59 GMT 2020


On 6/15/20 1:14 PM, Vineet Gupta wrote:
> Hi,
> 
> This patchset implements glibc port to ARC HS48x processor from Synopsys.

ping !

> 
> git@github.com:foss-for-synopsys-dwc-arc-processors/glibc.git  upstream-v7
> 
> v7:
>    * Addresses review comments from Adhemerval Zanella and Florian
>      Weimer (many thx to you both)
>    * Dropped ARC specific semaphore.h (following upstream 1270fbaaeebe)
>    * ARC specific dl-runtime.h (following upstream 8dbb7a08ec52)
>    * ARC specific math-use-builtins.h and dropped ARC specific sqrt/fma
>      routines (math-use-builtins.h will be disintegrated once done upstream)
>    * setjmp/longjmp to save GP, no need to save r25 (thread pointer)
>    * makecontext/startcontext use r14/r15 (vs. r13/r14)
>    * flatten out register file in mcontext_t (remove scratch/callee)
>    * Use of 'C' comments in asm code, LDR/STR macros
>    * Use of L (..) in asm code
>    * Dropped asm global register r25 specification for thread pointer
>      and rely on __builtin_thread_pointer
>    * NEWS update rewording
>    * Sweeping update of Copyright year 2020
> v6:
>    * Dropped 11/14: merged upstream
>    * _FPU_SETS() inline asm reworked
>    * Introduce fixup-asm-unistd.h to elide 32-bit time, offset syscalls and
>      regenerate arch-syscall.h
>    * Fix snafu in updating build-many-glibcs for ARC
>    * More code sytle fixes flagged by Joseph
> v5:
>    * Big Endian formally supported as multi-ABI
>    * Removed code for ARC700 processors
>    * Hard-float code updates: fegetmode, fesetround, feupdateenv
>    * socket-constant.h update for 64-bit ABI spun off as standalone patch
>    * __syscall_error made glibc_private
>    * math ulps regen
>    * gmp-mparam.h removed
>    * lint fixes as flagged by Joseph
> v4:
>    * Dropped 1/17: Merged upstream
>    * Dropped 17/17:
>        - 64-bit time/offset code chunked up into respective patches
>    * sysctl removed
>    * Updated README for arc gnu triplet
>    * Updated install files for ARC gcc/binutils requirements
>    * Updated NEWS with brief ISA/ABI info
> 
> v3:
>    * Support for Hardware Floating Point
>    * 64-bit time and offsets ABI (although all such changes are confined
>      to a single patch)
> 
> v5: https://sourceware.org/pipermail/libc-alpha/2020-April/112657.html
> v4: https://sourceware.org/pipermail/libc-alpha/2020-March/111855.html
> v3: https://sourceware.org/legacy-ml/libc-alpha/2020-03/msg00167.html
> v2: https://sourceware.org/legacy-ml/libc-alpha/2019-01/msg00681.html
> v1: https://sourceware.org/legacy-ml/libc-alpha/2018-12/msg00678.html
> 
> Documentation:
> --------------
> 
> (a) ABI doc:
> https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/wiki/files/ARCv2_ABI.pdf
> 
> (b) Programmer's Reference Manual (PRM) : needs a download request to be filled
> https://www.synopsys.com/dw/ipdir.php?ds=arc-hs44-hs46-hs48
> https://www.synopsys.com/dw/doc.php/ds/cc/programmers-reference-manual-ARC-HS.pdf
> 
> Test Results:
> --------------
> (a) build-many-glibcs.py
> 
> | Summary of test results:
> |   1251 PASS
> |     15 XFAIL
> 
> 
> (b) Full testsuite ran in a cross compile setup using buildroot on HSDK development
>     platform. Bulk of failures come from cross testing setup and I
>     intend to improve things with native testing going forward.
> 
> | Summary of test results:
> |     30 FAIL   (-3)
> |
> | FAIL: csu/test-as-const-tcb-offsets
> + FAIL: elf/tst-audit14
> + FAIL: elf/tst-audit15
> + FAIL: elf/tst-audit16
> | FAIL: elf/tst-ldconfig-ld_so_conf-update # not true: dlopen
> | FAIL: iconv/test-iconvconfig		# Needs gconv installed
> - FAIL: iconv/tst-gconv-init-failure
> | FAIL: io/ftwtest			# Requires execution by non-root
> - FAIL: io/tst-futimesat
> | FAIL: io/tst-lockf
> | FAIL: libio/tst-wfile-sync
> | FAIL: locale/tst-C-locale
> | FAIL: locale/tst-duplocale
> | FAIL: locale/tst-locale-locpath
> | FAIL: locale/tst-locname
> | FAIL: localedata/sort-test
> | FAIL: nptl/test-cond-printers		# needs Python3 and target GDB on target
> | FAIL: nptl/test-condattr-printers	#    ditto
> | FAIL: nptl/test-mutex-printers	#    ditto
> | FAIL: nptl/test-mutexattr-printers	#    ditto
> | FAIL: nptl/test-rwlock-printers	#    ditto
> | FAIL: nptl/test-rwlockattr-printers	#    ditto
> | FAIL: nptl/tst-umask1			# passes if run natively on target (NFS ACLv3 support needed)
> | FAIL: nss/bug-erange
> | FAIL: nss/tst-nss-files-hosts-getent	# Timed out
> | FAIL: nss/tst-nss-files-hosts-multi	# Timed out
> | FAIL: posix/bug-ga2			# DNS issue: google DNS vs. SNPS
> | FAIL: posix/globtest			# require same user on target and host
> | FAIL: posix/tst-getaddrinfo5		# passes outside corporate network
> - FAIL: resolv/tst-resolv-basic
> - FAIL: resolv/tst-resolv-edns
> - FAIL: resolv/tst-resolv-rotate
> - FAIL: resolv/tst-resolv-search
> | FAIL: stdio-common/bug22		# Needs more RAM: 2 GB memory
> | FAIL: sunrpc/bug20790			# missing cpp on target
> | FAIL: timezone/tst-tzset		# passes outside corporate network
> 
> 
> kindly review.
> 
> Thx,
> -Vineet
> 
> Vineet Gupta (13):
>   ARC: ABI Implementation
>   ARC: startup and dynamic linking code
>   ARC: Thread Local Storage support
>   ARC: Atomics and Locking primitives
>   ARC: math soft float support
>   ARC: hardware floating point support
>   ARC: Linux Syscall Interface
>   ARC: Linux ABI
>   ARC: Linux Startup and Dynamic Loading
>   ARC: ABI lists
>   ARC: Build Infrastructure
>   build-many-glibcs.py: Enable ARC builds
>   Documentation for ARC port
> 
>  NEWS                                          |   11 +
>  README                                        |    1 +
>  config.h.in                                   |    3 +
>  manual/install.texi                           |    4 +
>  scripts/build-many-glibcs.py                  |   10 +
>  sysdeps/arc/Implies                           |    3 +
>  sysdeps/arc/Makefile                          |   21 +
>  sysdeps/arc/Versions                          |    8 +
>  sysdeps/arc/__longjmp.S                       |   49 +
>  sysdeps/arc/abort-instr.h                     |    2 +
>  sysdeps/arc/atomic-machine.h                  |   69 +
>  sysdeps/arc/bits/endianness.h                 |   15 +
>  sysdeps/arc/bits/fenv.h                       |   78 +
>  sysdeps/arc/bits/link.h                       |   52 +
>  sysdeps/arc/bits/setjmp.h                     |   26 +
>  sysdeps/arc/bsd-_setjmp.S                     |    1 +
>  sysdeps/arc/bsd-setjmp.S                      |    1 +
>  sysdeps/arc/configure                         |  182 ++
>  sysdeps/arc/configure.ac                      |   26 +
>  sysdeps/arc/dl-machine.h                      |  341 +++
>  sysdeps/arc/dl-runtime.h                      |   42 +
>  sysdeps/arc/dl-sysdep.h                       |   25 +
>  sysdeps/arc/dl-tls.h                          |   30 +
>  sysdeps/arc/dl-trampoline.S                   |   72 +
>  sysdeps/arc/entry.h                           |    5 +
>  sysdeps/arc/fpu/fclrexcpt.c                   |   36 +
>  sysdeps/arc/fpu/fegetenv.c                    |   37 +
>  sysdeps/arc/fpu/fegetmode.c                   |   31 +
>  sysdeps/arc/fpu/fegetround.c                  |   32 +
>  sysdeps/arc/fpu/feholdexcpt.c                 |   43 +
>  sysdeps/arc/fpu/fesetenv.c                    |   48 +
>  sysdeps/arc/fpu/fesetexcept.c                 |   32 +
>  sysdeps/arc/fpu/fesetmode.c                   |   40 +
>  sysdeps/arc/fpu/fesetround.c                  |   40 +
>  sysdeps/arc/fpu/feupdateenv.c                 |   51 +
>  sysdeps/arc/fpu/fgetexcptflg.c                |   31 +
>  sysdeps/arc/fpu/fraiseexcpt.c                 |   39 +
>  sysdeps/arc/fpu/fsetexcptflg.c                |   38 +
>  sysdeps/arc/fpu/ftestexcept.c                 |   33 +
>  sysdeps/arc/fpu/libm-test-ulps                | 1140 +++++++++
>  sysdeps/arc/fpu/libm-test-ulps-name           |    1 +
>  sysdeps/arc/fpu/math-use-builtins.h           |   70 +
>  sysdeps/arc/fpu_control.h                     |  106 +
>  sysdeps/arc/gccframe.h                        |   21 +
>  sysdeps/arc/get-rounding-mode.h               |   38 +
>  sysdeps/arc/jmpbuf-offsets.h                  |   22 +
>  sysdeps/arc/jmpbuf-unwind.h                   |   47 +
>  sysdeps/arc/ldsodefs.h                        |   43 +
>  sysdeps/arc/libc-tls.c                        |   27 +
>  sysdeps/arc/machine-gmon.h                    |   35 +
>  sysdeps/arc/math-tests-trap.h                 |   27 +
>  sysdeps/arc/memusage.h                        |   23 +
>  sysdeps/arc/nofpu/Implies                     |    1 +
>  sysdeps/arc/nofpu/libm-test-ulps              |  270 +++
>  sysdeps/arc/nofpu/libm-test-ulps-name         |    1 +
>  sysdeps/arc/nofpu/math-tests-exceptions.h     |   27 +
>  sysdeps/arc/nofpu/math-tests-rounding.h       |   27 +
>  sysdeps/arc/nptl/Makefile                     |   22 +
>  sysdeps/arc/nptl/pthreaddef.h                 |   32 +
>  sysdeps/arc/nptl/tcb-offsets.sym              |   11 +
>  sysdeps/arc/nptl/tls.h                        |  148 ++
>  sysdeps/arc/preconfigure                      |   14 +
>  sysdeps/arc/setjmp.S                          |   66 +
>  sysdeps/arc/sfp-machine.h                     |   70 +
>  sysdeps/arc/sotruss-lib.c                     |   50 +
>  sysdeps/arc/stackinfo.h                       |   33 +
>  sysdeps/arc/start.S                           |   74 +
>  sysdeps/arc/sysdep.h                          |   53 +
>  sysdeps/arc/tininess.h                        |    1 +
>  sysdeps/arc/tls-macros.h                      |   47 +
>  sysdeps/arc/tst-audit.h                       |   23 +
>  sysdeps/unix/sysv/linux/arc/Implies           |    3 +
>  sysdeps/unix/sysv/linux/arc/Makefile          |   29 +
>  sysdeps/unix/sysv/linux/arc/Versions          |   16 +
>  sysdeps/unix/sysv/linux/arc/arch-syscall.h    |  303 +++
>  sysdeps/unix/sysv/linux/arc/bits/procfs.h     |   35 +
>  sysdeps/unix/sysv/linux/arc/bits/timesize.h   |   21 +
>  .../sysv/linux/arc/bits/types/__sigset_t.h    |   12 +
>  sysdeps/unix/sysv/linux/arc/c++-types.data    |   67 +
>  sysdeps/unix/sysv/linux/arc/clone.S           |   93 +
>  sysdeps/unix/sysv/linux/arc/configure         |    4 +
>  sysdeps/unix/sysv/linux/arc/configure.ac      |    4 +
>  sysdeps/unix/sysv/linux/arc/dl-static.c       |   84 +
>  .../unix/sysv/linux/arc/fixup-asm-unistd.h    |   41 +
>  sysdeps/unix/sysv/linux/arc/getcontext.S      |   64 +
>  sysdeps/unix/sysv/linux/arc/jmp_buf-macros.h  |    6 +
>  sysdeps/unix/sysv/linux/arc/kernel-features.h |   27 +
>  sysdeps/unix/sysv/linux/arc/kernel_stat.h     |   26 +
>  sysdeps/unix/sysv/linux/arc/ld.abilist        |    5 +
>  sysdeps/unix/sysv/linux/arc/ldconfig.h        |   27 +
>  sysdeps/unix/sysv/linux/arc/ldsodefs.h        |   32 +
>  .../sysv/linux/arc/libBrokenLocale.abilist    |    1 +
>  sysdeps/unix/sysv/linux/arc/libanl.abilist    |    4 +
>  sysdeps/unix/sysv/linux/arc/libc.abilist      | 2084 +++++++++++++++++
>  sysdeps/unix/sysv/linux/arc/libcrypt.abilist  |    2 +
>  sysdeps/unix/sysv/linux/arc/libdl.abilist     |    9 +
>  sysdeps/unix/sysv/linux/arc/libm.abilist      |  699 ++++++
>  .../unix/sysv/linux/arc/libpthread.abilist    |  213 ++
>  sysdeps/unix/sysv/linux/arc/libresolv.abilist |   79 +
>  sysdeps/unix/sysv/linux/arc/librt.abilist     |   35 +
>  .../unix/sysv/linux/arc/libthread_db.abilist  |   40 +
>  sysdeps/unix/sysv/linux/arc/libutil.abilist   |    6 +
>  sysdeps/unix/sysv/linux/arc/localplt.data     |   12 +
>  sysdeps/unix/sysv/linux/arc/makecontext.c     |   73 +
>  sysdeps/unix/sysv/linux/arc/mmap_internal.h   |   27 +
>  sysdeps/unix/sysv/linux/arc/setcontext.S      |   93 +
>  sysdeps/unix/sysv/linux/arc/shlib-versions    |    7 +
>  sysdeps/unix/sysv/linux/arc/sigaction.c       |   31 +
>  sysdeps/unix/sysv/linux/arc/sigcontextinfo.h  |   28 +
>  sysdeps/unix/sysv/linux/arc/sigrestorer.S     |   29 +
>  sysdeps/unix/sysv/linux/arc/swapcontext.S     |   94 +
>  sysdeps/unix/sysv/linux/arc/sys/cachectl.h    |   35 +
>  sysdeps/unix/sysv/linux/arc/sys/ucontext.h    |   57 +
>  sysdeps/unix/sysv/linux/arc/sys/user.h        |   31 +
>  sysdeps/unix/sysv/linux/arc/syscall.S         |   33 +
>  sysdeps/unix/sysv/linux/arc/syscalls.list     |    3 +
>  sysdeps/unix/sysv/linux/arc/sysdep.c          |   33 +
>  sysdeps/unix/sysv/linux/arc/sysdep.h          |  224 ++
>  sysdeps/unix/sysv/linux/arc/ucontext-macros.h |   25 +
>  sysdeps/unix/sysv/linux/arc/ucontext_i.sym    |   20 +
>  sysdeps/unix/sysv/linux/arc/vfork.S           |   42 +
>  121 files changed, 9146 insertions(+)
>  create mode 100644 sysdeps/arc/Implies
>  create mode 100644 sysdeps/arc/Makefile
>  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/bits/endianness.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/dl-machine.h
>  create mode 100644 sysdeps/arc/dl-runtime.h
>  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/entry.h
>  create mode 100644 sysdeps/arc/fpu/fclrexcpt.c
>  create mode 100644 sysdeps/arc/fpu/fegetenv.c
>  create mode 100644 sysdeps/arc/fpu/fegetmode.c
>  create mode 100644 sysdeps/arc/fpu/fegetround.c
>  create mode 100644 sysdeps/arc/fpu/feholdexcpt.c
>  create mode 100644 sysdeps/arc/fpu/fesetenv.c
>  create mode 100644 sysdeps/arc/fpu/fesetexcept.c
>  create mode 100644 sysdeps/arc/fpu/fesetmode.c
>  create mode 100644 sysdeps/arc/fpu/fesetround.c
>  create mode 100644 sysdeps/arc/fpu/feupdateenv.c
>  create mode 100644 sysdeps/arc/fpu/fgetexcptflg.c
>  create mode 100644 sysdeps/arc/fpu/fraiseexcpt.c
>  create mode 100644 sysdeps/arc/fpu/fsetexcptflg.c
>  create mode 100644 sysdeps/arc/fpu/ftestexcept.c
>  create mode 100644 sysdeps/arc/fpu/libm-test-ulps
>  create mode 100644 sysdeps/arc/fpu/libm-test-ulps-name
>  create mode 100644 sysdeps/arc/fpu/math-use-builtins.h
>  create mode 100644 sysdeps/arc/fpu_control.h
>  create mode 100644 sysdeps/arc/gccframe.h
>  create mode 100644 sysdeps/arc/get-rounding-mode.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/machine-gmon.h
>  create mode 100644 sysdeps/arc/math-tests-trap.h
>  create mode 100644 sysdeps/arc/memusage.h
>  create mode 100644 sysdeps/arc/nofpu/Implies
>  create mode 100644 sysdeps/arc/nofpu/libm-test-ulps
>  create mode 100644 sysdeps/arc/nofpu/libm-test-ulps-name
>  create mode 100644 sysdeps/arc/nofpu/math-tests-exceptions.h
>  create mode 100644 sysdeps/arc/nofpu/math-tests-rounding.h
>  create mode 100644 sysdeps/arc/nptl/Makefile
>  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/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/tininess.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-syscall.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/bits/procfs.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/bits/timesize.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/bits/types/__sigset_t.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/c++-types.data
>  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/dl-static.c
>  create mode 100644 sysdeps/unix/sysv/linux/arc/fixup-asm-unistd.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/getcontext.S
>  create mode 100644 sysdeps/unix/sysv/linux/arc/jmp_buf-macros.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/kernel-features.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/kernel_stat.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/ldsodefs.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/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/makecontext.c
>  create mode 100644 sysdeps/unix/sysv/linux/arc/mmap_internal.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/setcontext.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/sigrestorer.S
>  create mode 100644 sysdeps/unix/sysv/linux/arc/swapcontext.S
>  create mode 100644 sysdeps/unix/sysv/linux/arc/sys/cachectl.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/syscalls.list
>  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-macros.h
>  create mode 100644 sysdeps/unix/sysv/linux/arc/ucontext_i.sym
>  create mode 100644 sysdeps/unix/sysv/linux/arc/vfork.S
> 



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