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

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Hi,

This patchset implements glibc port to ARC HS48x processor from Synopsys.

git@xxxxxxxxxx: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

-- 
2.20.1


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