[v5,00/13] Glibc OpenRISC port

  This is the OpenRISC port for glibc that I have been working on.

Changes since v4:
 - Fix suggestion from Joseph Myers
   - Remove libnsl.abilist
 - Fixed suggestions from Adhemerval:
   - Use Elf32_Addr and Elf32_Sym on link.h and sotruss-lib.c.
   - Remove the superflous atomic typedefs on atomic-machine.h.
   - Add the _dl_find_object on libc.abilist.
   - Update wording for the NEWS entry.
 - Other fixes
   - Update date to 2022
   - Remove uneeded REGSIZE
   - Remove trailing newlines in Makefile
   - Fix space vs tabs indentation in sysdep.h

Changes since v3:
 - Fix suggestion from Paul Eggert
   - Fix typo pore/port
 - Fixed suggestions from Adhemerval:
   - Used ENTRY/END asm macros where missing
   - Remove block in dl-machine.h suggesting LD_PROFILE
   - Remove jmp_buf-macros.h  macros and use new default.
   - Remove tcb-offsets.sym file and Makefile reference.
   - Remove tcb-offsets.h include in tls.h.
   - Define lib-audit register layout inline with other architectures.
   - Fix usage of locally defined register in or1k_get_got.  Also, fixup
     indentation when using or1k_get_got.
   - Cleanup abilists after rebasing, adding rseq and removing
     empty files.
   - Remove prctl and other unused entries in the linux Makefile.
   - Fix STACK_ALIGN to 4 bytes, from incorrect copy-n-paste 16 bytes.
   - Use default pthreadtypes-arch.h.
   - Mention only soft-float supported in NEWS.
   - Remove sysdeps/unix/sysv/linux/or1k/bits/timesize.h and use new
     default.

Changes since v2:
 - Fixed suggestions from Joseph Myers:
   - Fix comment style, and description on top of each file
   - Make sure macros have parentheses when needed,
   - Bump required kernel down to 5.4.0 and document
   - Regenerate arch-syscall.h
 - Fixed suggestions from Adhemerval:
   - Remove kernel_stat.h
   - Just set MMAP2_PAGE_UNIT to 8K
   - Remove ioctl.c and syscall.c files
 - Update TCB alignment to 32 bytes

Changes since v1:
 - Update api's as suggested by Florian
 - Remove hard float support
 - Updates to get all tests passing
 - Split patch into managable bits similar to recent ARC port

Documentation:

  Architecture / ABI docs:
   https://raw.githubusercontent.com/openrisc/doc/master/openrisc-arch-1.3-rev1.pdf

Test Results:

  build-many-glibcs.py:

   PASS with mainline ang gcc-11.

  Full test suite:

  This time I ran the test suite with timeout of 300 and with patch for forcing
  O_LARGEFILE in open64 [0].  The test has one failure but it seems like flaky
  test as it passed after the second run.

    # results in file: /home/shorne/work/gnu-toolchain/log/test--20211226-162029.log
    # test start:    2021-12-26T16:20:29+09:00

    # failures
    FAIL: posix/tst-execveat   /* Running second time passes */

    # test finish:   2021-12-29T12:54:08+09:00
    # test duration: 2 days 20 hours 33 minutes and 39 seconds
    # test for file: tests.sum
    # test wrapper:  /home/shorne/work/gnu-toolchain/glibc/scripts/cross-test-ssh.sh --timeoutfactor 300 10.0.0.5

    # summary
	  1 FAIL
       4148 PASS
	 31 UNSUPPORTED
	 16 XFAIL
	  2 XPASS

    posix/tst-execveat.out:
	Timed out: killed the child process
	Termination time: 2021-12-29T01:02:42.433964340
	Last write to standard output: 2021-12-28T23:22:40.266363000

    tests.sum: https://gist.github.com/stffrdhrn/88c1fce0c54350258f1f5869068d015a

 [0] https://sourceware.org/pipermail/libc-alpha/2021-December/134634.html

Stafford Horne (13):
  elf: Add reloc for OpenRISC
  linux/syscalls: Add or1k_atomic syscall for OpenRISC
  or1k: ABI Implementation
  or1k: startup and dynamic linking code
  or1k: Thread Local Storage support
  or1k: Atomics and Locking primitives
  or1k: math soft float support
  or1k: Linux Syscall Interface
  or1k: Linux ABI
  or1k: ABI lists
  or1k: Build Infrastructure
  build-many-glibcs.py: add OpenRISC support
  Documentation for OpenRISC port

 NEWS                                          |    9 +
 README                                        |    1 +
 elf/elf.h                                     |   37 +
 scripts/build-many-glibcs.py                  |    5 +
 sysdeps/or1k/Implies                          |    3 +
 sysdeps/or1k/Makefile                         |    6 +
 sysdeps/or1k/__longjmp.S                      |   50 +
 sysdeps/or1k/atomic-machine.h                 |   71 +
 sysdeps/or1k/bits/endianness.h                |   11 +
 sysdeps/or1k/bits/fenv.h                      |   69 +
 sysdeps/or1k/bits/link.h                      |   54 +
 sysdeps/or1k/bits/setjmp.h                    |   32 +
 sysdeps/or1k/bsd-_setjmp.S                    |    1 +
 sysdeps/or1k/bsd-setjmp.S                     |    1 +
 sysdeps/or1k/dl-machine.h                     |  300 +++
 sysdeps/or1k/dl-start.S                       |   98 +
 sysdeps/or1k/dl-tls.h                         |   27 +
 sysdeps/or1k/dl-trampoline.S                  |   73 +
 sysdeps/or1k/jmpbuf-offsets.h                 |   23 +
 sysdeps/or1k/jmpbuf-unwind.h                  |   36 +
 sysdeps/or1k/ldsodefs.h                       |   40 +
 sysdeps/or1k/libc-tls.c                       |   34 +
 sysdeps/or1k/libm-test-ulps                   | 1112 +++++++++
 sysdeps/or1k/libm-test-ulps-name              |    1 +
 sysdeps/or1k/machine-gmon.h                   |   35 +
 sysdeps/or1k/memusage.h                       |   21 +
 sysdeps/or1k/nofpu/Implies                    |    1 +
 sysdeps/or1k/nofpu/math-tests-exceptions.h    |   29 +
 sysdeps/or1k/nofpu/math-tests-rounding.h      |   28 +
 sysdeps/or1k/nptl/pthreaddef.h                |   36 +
 sysdeps/or1k/nptl/tls.h                       |  184 ++
 sysdeps/or1k/preconfigure                     |   33 +
 sysdeps/or1k/setjmp.S                         |   56 +
 sysdeps/or1k/sfp-machine.h                    |   93 +
 sysdeps/or1k/sotruss-lib.c                    |   51 +
 sysdeps/or1k/stackinfo.h                      |   34 +
 sysdeps/or1k/start.S                          |   99 +
 sysdeps/or1k/sysdep.h                         |   80 +
 sysdeps/or1k/tininess.h                       |    1 +
 sysdeps/or1k/tst-audit.h                      |   24 +
 sysdeps/unix/sysv/linux/or1k/Implies          |    3 +
 sysdeps/unix/sysv/linux/or1k/Makefile         |    7 +
 sysdeps/unix/sysv/linux/or1k/arch-syscall.h   |  325 +++
 sysdeps/unix/sysv/linux/or1k/bits/procfs.h    |   38 +
 sysdeps/unix/sysv/linux/or1k/c++-types.data   |   67 +
 sysdeps/unix/sysv/linux/or1k/clone.c          |   61 +
 sysdeps/unix/sysv/linux/or1k/configure        |    4 +
 sysdeps/unix/sysv/linux/or1k/configure.ac     |    4 +
 sysdeps/unix/sysv/linux/or1k/getcontext.S     |   72 +
 sysdeps/unix/sysv/linux/or1k/ld.abilist       |    8 +
 .../sysv/linux/or1k/libBrokenLocale.abilist   |    1 +
 sysdeps/unix/sysv/linux/or1k/libc.abilist     | 2123 +++++++++++++++++
 .../sysv/linux/or1k/libc_malloc_debug.abilist |   26 +
 sysdeps/unix/sysv/linux/or1k/libcrypt.abilist |    2 +
 sysdeps/unix/sysv/linux/or1k/libm.abilist     |  759 ++++++
 .../unix/sysv/linux/or1k/libresolv.abilist    |   55 +
 .../unix/sysv/linux/or1k/libthread_db.abilist |   40 +
 sysdeps/unix/sysv/linux/or1k/localplt.data    |   14 +
 sysdeps/unix/sysv/linux/or1k/makecontext.c    |   77 +
 sysdeps/unix/sysv/linux/or1k/mmap_internal.h  |   28 +
 sysdeps/unix/sysv/linux/or1k/or1k_clone.S     |   89 +
 sysdeps/unix/sysv/linux/or1k/setcontext.S     |  108 +
 sysdeps/unix/sysv/linux/or1k/shlib-versions   |    2 +
 sysdeps/unix/sysv/linux/or1k/sigcontextinfo.h |   28 +
 sysdeps/unix/sysv/linux/or1k/swapcontext.S    |  116 +
 sysdeps/unix/sysv/linux/or1k/sys/ucontext.h   |   53 +
 sysdeps/unix/sysv/linux/or1k/sys/user.h       |    1 +
 sysdeps/unix/sysv/linux/or1k/sysdep.c         |   34 +
 sysdeps/unix/sysv/linux/or1k/sysdep.h         |  201 ++
 sysdeps/unix/sysv/linux/or1k/ucontext_i.sym   |   26 +
 sysdeps/unix/sysv/linux/syscall-names.list    |    1 +
 71 files changed, 7272 insertions(+)
 create mode 100644 sysdeps/or1k/Implies
 create mode 100644 sysdeps/or1k/Makefile
 create mode 100644 sysdeps/or1k/__longjmp.S
 create mode 100644 sysdeps/or1k/atomic-machine.h
 create mode 100644 sysdeps/or1k/bits/endianness.h
 create mode 100644 sysdeps/or1k/bits/fenv.h
 create mode 100644 sysdeps/or1k/bits/link.h
 create mode 100644 sysdeps/or1k/bits/setjmp.h
 create mode 100644 sysdeps/or1k/bsd-_setjmp.S
 create mode 100644 sysdeps/or1k/bsd-setjmp.S
 create mode 100644 sysdeps/or1k/dl-machine.h
 create mode 100644 sysdeps/or1k/dl-start.S
 create mode 100644 sysdeps/or1k/dl-tls.h
 create mode 100644 sysdeps/or1k/dl-trampoline.S
 create mode 100644 sysdeps/or1k/jmpbuf-offsets.h
 create mode 100644 sysdeps/or1k/jmpbuf-unwind.h
 create mode 100644 sysdeps/or1k/ldsodefs.h
 create mode 100644 sysdeps/or1k/libc-tls.c
 create mode 100644 sysdeps/or1k/libm-test-ulps
 create mode 100644 sysdeps/or1k/libm-test-ulps-name
 create mode 100644 sysdeps/or1k/machine-gmon.h
 create mode 100644 sysdeps/or1k/memusage.h
 create mode 100644 sysdeps/or1k/nofpu/Implies
 create mode 100644 sysdeps/or1k/nofpu/math-tests-exceptions.h
 create mode 100644 sysdeps/or1k/nofpu/math-tests-rounding.h
 create mode 100644 sysdeps/or1k/nptl/pthreaddef.h
 create mode 100644 sysdeps/or1k/nptl/tls.h
 create mode 100644 sysdeps/or1k/preconfigure
 create mode 100644 sysdeps/or1k/setjmp.S
 create mode 100644 sysdeps/or1k/sfp-machine.h
 create mode 100644 sysdeps/or1k/sotruss-lib.c
 create mode 100644 sysdeps/or1k/stackinfo.h
 create mode 100644 sysdeps/or1k/start.S
 create mode 100644 sysdeps/or1k/sysdep.h
 create mode 100644 sysdeps/or1k/tininess.h
 create mode 100644 sysdeps/or1k/tst-audit.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/Implies
 create mode 100644 sysdeps/unix/sysv/linux/or1k/Makefile
 create mode 100644 sysdeps/unix/sysv/linux/or1k/arch-syscall.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/bits/procfs.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/c++-types.data
 create mode 100644 sysdeps/unix/sysv/linux/or1k/clone.c
 create mode 100644 sysdeps/unix/sysv/linux/or1k/configure
 create mode 100644 sysdeps/unix/sysv/linux/or1k/configure.ac
 create mode 100644 sysdeps/unix/sysv/linux/or1k/getcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/or1k/ld.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libBrokenLocale.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libc.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libc_malloc_debug.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libcrypt.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libm.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libresolv.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/libthread_db.abilist
 create mode 100644 sysdeps/unix/sysv/linux/or1k/localplt.data
 create mode 100644 sysdeps/unix/sysv/linux/or1k/makecontext.c
 create mode 100644 sysdeps/unix/sysv/linux/or1k/mmap_internal.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/or1k_clone.S
 create mode 100644 sysdeps/unix/sysv/linux/or1k/setcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/or1k/shlib-versions
 create mode 100644 sysdeps/unix/sysv/linux/or1k/sigcontextinfo.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/swapcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/or1k/sys/ucontext.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/sys/user.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/sysdep.c
 create mode 100644 sysdeps/unix/sysv/linux/or1k/sysdep.h
 create mode 100644 sysdeps/unix/sysv/linux/or1k/ucontext_i.sym
  

On 04/01/2022 00:14, Stafford Horne via Libc-alpha wrote:
> This is the OpenRISC port for glibc that I have been working on.
> 
> Changes since v4:
>  - Fix suggestion from Joseph Myers
>    - Remove libnsl.abilist
>  - Fixed suggestions from Adhemerval:
>    - Use Elf32_Addr and Elf32_Sym on link.h and sotruss-lib.c.
>    - Remove the superflous atomic typedefs on atomic-machine.h.
>    - Add the _dl_find_object on libc.abilist.
>    - Update wording for the NEWS entry.
>  - Other fixes
>    - Update date to 2022
>    - Remove uneeded REGSIZE
>    - Remove trailing newlines in Makefile
>    - Fix space vs tabs indentation in sysdep.h
> 
> Changes since v3:
>  - Fix suggestion from Paul Eggert
>    - Fix typo pore/port
>  - Fixed suggestions from Adhemerval:
>    - Used ENTRY/END asm macros where missing
>    - Remove block in dl-machine.h suggesting LD_PROFILE
>    - Remove jmp_buf-macros.h  macros and use new default.
>    - Remove tcb-offsets.sym file and Makefile reference.
>    - Remove tcb-offsets.h include in tls.h.
>    - Define lib-audit register layout inline with other architectures.
>    - Fix usage of locally defined register in or1k_get_got.  Also, fixup
>      indentation when using or1k_get_got.
>    - Cleanup abilists after rebasing, adding rseq and removing
>      empty files.
>    - Remove prctl and other unused entries in the linux Makefile.
>    - Fix STACK_ALIGN to 4 bytes, from incorrect copy-n-paste 16 bytes.
>    - Use default pthreadtypes-arch.h.
>    - Mention only soft-float supported in NEWS.
>    - Remove sysdeps/unix/sysv/linux/or1k/bits/timesize.h and use new
>      default.
> 
> Changes since v2:
>  - Fixed suggestions from Joseph Myers:
>    - Fix comment style, and description on top of each file
>    - Make sure macros have parentheses when needed,
>    - Bump required kernel down to 5.4.0 and document
>    - Regenerate arch-syscall.h
>  - Fixed suggestions from Adhemerval:
>    - Remove kernel_stat.h
>    - Just set MMAP2_PAGE_UNIT to 8K
>    - Remove ioctl.c and syscall.c files
>  - Update TCB alignment to 32 bytes
> 
> Changes since v1:
>  - Update api's as suggested by Florian
>  - Remove hard float support
>  - Updates to get all tests passing
>  - Split patch into managable bits similar to recent ARC port
> 
> Documentation:
> 
>   Architecture / ABI docs:
>    https://raw.githubusercontent.com/openrisc/doc/master/openrisc-arch-1.3-rev1.pdf
> 
> Test Results:
> 
>   build-many-glibcs.py:
> 
>    PASS with mainline ang gcc-11.
> 
>   Full test suite:
> 
>   This time I ran the test suite with timeout of 300 and with patch for forcing
>   O_LARGEFILE in open64 [0].  The test has one failure but it seems like flaky
>   test as it passed after the second run.
This is already approved, so I take these tests were done against and slight order
tree (which is fine btw).

> 
>     # results in file: /home/shorne/work/gnu-toolchain/log/test--20211226-162029.log
>     # test start:    2021-12-26T16:20:29+09:00
> 
>     # failures
>     FAIL: posix/tst-execveat   /* Running second time passes */
> 
>     # test finish:   2021-12-29T12:54:08+09:00
>     # test duration: 2 days 20 hours 33 minutes and 39 seconds
>     # test for file: tests.sum
>     # test wrapper:  /home/shorne/work/gnu-toolchain/glibc/scripts/cross-test-ssh.sh --timeoutfactor 300 10.0.0.5
> 
>     # summary
> 	  1 FAIL
>        4148 PASS
> 	 31 UNSUPPORTED
> 	 16 XFAIL
> 	  2 XPASS
> 
>     posix/tst-execveat.out:
> 	Timed out: killed the child process
> 	Termination time: 2021-12-29T01:02:42.433964340
> 	Last write to standard output: 2021-12-28T23:22:40.266363000
> 
>     tests.sum: https://gist.github.com/stffrdhrn/88c1fce0c54350258f1f5869068d015a
> 
>  [0] https://sourceware.org/pipermail/libc-alpha/2021-December/134634.html
> 

I approved the missing patch and I think the patches are ok to go in.  I am
curious about the posix/tst-execveat issues, but since it does not really 
have any arch-specific implementation I think it might be related to the
test environment (it would be good to know exactly what has caused the
failure so we can improve it).
  

On Tue, Jan 04, 2022 at 09:34:47AM -0300, Adhemerval Zanella wrote:
> 
> 
> On 04/01/2022 00:14, Stafford Horne via Libc-alpha wrote:
> > This is the OpenRISC port for glibc that I have been working on.
> > 
> > Changes since v4:
> >  - Fix suggestion from Joseph Myers
> >    - Remove libnsl.abilist
> >  - Fixed suggestions from Adhemerval:
> >    - Use Elf32_Addr and Elf32_Sym on link.h and sotruss-lib.c.
> >    - Remove the superflous atomic typedefs on atomic-machine.h.
> >    - Add the _dl_find_object on libc.abilist.
> >    - Update wording for the NEWS entry.
> >  - Other fixes
> >    - Update date to 2022
> >    - Remove uneeded REGSIZE
> >    - Remove trailing newlines in Makefile
> >    - Fix space vs tabs indentation in sysdep.h
> > 
> > Changes since v3:
> >  - Fix suggestion from Paul Eggert
> >    - Fix typo pore/port
> >  - Fixed suggestions from Adhemerval:
> >    - Used ENTRY/END asm macros where missing
> >    - Remove block in dl-machine.h suggesting LD_PROFILE
> >    - Remove jmp_buf-macros.h  macros and use new default.
> >    - Remove tcb-offsets.sym file and Makefile reference.
> >    - Remove tcb-offsets.h include in tls.h.
> >    - Define lib-audit register layout inline with other architectures.
> >    - Fix usage of locally defined register in or1k_get_got.  Also, fixup
> >      indentation when using or1k_get_got.
> >    - Cleanup abilists after rebasing, adding rseq and removing
> >      empty files.
> >    - Remove prctl and other unused entries in the linux Makefile.
> >    - Fix STACK_ALIGN to 4 bytes, from incorrect copy-n-paste 16 bytes.
> >    - Use default pthreadtypes-arch.h.
> >    - Mention only soft-float supported in NEWS.
> >    - Remove sysdeps/unix/sysv/linux/or1k/bits/timesize.h and use new
> >      default.
> > 
> > Changes since v2:
> >  - Fixed suggestions from Joseph Myers:
> >    - Fix comment style, and description on top of each file
> >    - Make sure macros have parentheses when needed,
> >    - Bump required kernel down to 5.4.0 and document
> >    - Regenerate arch-syscall.h
> >  - Fixed suggestions from Adhemerval:
> >    - Remove kernel_stat.h
> >    - Just set MMAP2_PAGE_UNIT to 8K
> >    - Remove ioctl.c and syscall.c files
> >  - Update TCB alignment to 32 bytes
> > 
> > Changes since v1:
> >  - Update api's as suggested by Florian
> >  - Remove hard float support
> >  - Updates to get all tests passing
> >  - Split patch into managable bits similar to recent ARC port
> > 
> > Documentation:
> > 
> >   Architecture / ABI docs:
> >    https://raw.githubusercontent.com/openrisc/doc/master/openrisc-arch-1.3-rev1.pdf
> > 
> > Test Results:
> > 
> >   build-many-glibcs.py:
> > 
> >    PASS with mainline ang gcc-11.
> > 
> >   Full test suite:
> > 
> >   This time I ran the test suite with timeout of 300 and with patch for forcing
> >   O_LARGEFILE in open64 [0].  The test has one failure but it seems like flaky
> >   test as it passed after the second run.
> This is already approved, so I take these tests were done against and slight order
> tree (which is fine btw).

Sorry, I forgot to update this bit for v5.  The patch for open64 is already
upstream.

> > 
> >     # results in file: /home/shorne/work/gnu-toolchain/log/test--20211226-162029.log
> >     # test start:    2021-12-26T16:20:29+09:00
> > 
> >     # failures
> >     FAIL: posix/tst-execveat   /* Running second time passes */
> > 
> >     # test finish:   2021-12-29T12:54:08+09:00
> >     # test duration: 2 days 20 hours 33 minutes and 39 seconds
> >     # test for file: tests.sum
> >     # test wrapper:  /home/shorne/work/gnu-toolchain/glibc/scripts/cross-test-ssh.sh --timeoutfactor 300 10.0.0.5
> > 
> >     # summary
> > 	  1 FAIL
> >        4148 PASS
> > 	 31 UNSUPPORTED
> > 	 16 XFAIL
> > 	  2 XPASS
> > 
> >     posix/tst-execveat.out:
> > 	Timed out: killed the child process
> > 	Termination time: 2021-12-29T01:02:42.433964340
> > 	Last write to standard output: 2021-12-28T23:22:40.266363000
> > 
> >     tests.sum: https://gist.github.com/stffrdhrn/88c1fce0c54350258f1f5869068d015a
> > 
> >  [0] https://sourceware.org/pipermail/libc-alpha/2021-December/134634.html
> > 
> 
> I approved the missing patch and I think the patches are ok to go in.  I am
> curious about the posix/tst-execveat issues, but since it does not really 
> have any arch-specific implementation I think it might be related to the
> test environment (it would be good to know exactly what has caused the
> failure so we can improve it).

It fails with what looks like a deadlock but I cannot reproduce it.  When it
fails it times our after several minutes, when I run it again it passes right
away.

The platform I run on loads binaries over NFS.  There may be some kind of race
condition caused when binaries are loading slowly.

I will wait a day or so for comments then push this upstream.  If no objections,
thanks for all your help reviewing.  Note, after pushing up stream I will also
publish all of the updates to the glibc wiki.

-Stafford
  

Thank you.

On Wed, Jan 05, 2022 at 06:36:25AM +0900, Stafford Horne wrote:
> On Tue, Jan 04, 2022 at 09:34:47AM -0300, Adhemerval Zanella wrote:
> > 
> > 
> > On 04/01/2022 00:14, Stafford Horne via Libc-alpha wrote:
> > > This is the OpenRISC port for glibc that I have been working on.
> > > 
> > > Changes since v4:
> > >  - Fix suggestion from Joseph Myers
> > >    - Remove libnsl.abilist
> > >  - Fixed suggestions from Adhemerval:
> > >    - Use Elf32_Addr and Elf32_Sym on link.h and sotruss-lib.c.
> > >    - Remove the superflous atomic typedefs on atomic-machine.h.
> > >    - Add the _dl_find_object on libc.abilist.
> > >    - Update wording for the NEWS entry.
> > >  - Other fixes
> > >    - Update date to 2022
> > >    - Remove uneeded REGSIZE
> > >    - Remove trailing newlines in Makefile
> > >    - Fix space vs tabs indentation in sysdep.h
> > > 
> > > Changes since v3:
> > >  - Fix suggestion from Paul Eggert
> > >    - Fix typo pore/port
> > >  - Fixed suggestions from Adhemerval:
> > >    - Used ENTRY/END asm macros where missing
> > >    - Remove block in dl-machine.h suggesting LD_PROFILE
> > >    - Remove jmp_buf-macros.h  macros and use new default.
> > >    - Remove tcb-offsets.sym file and Makefile reference.
> > >    - Remove tcb-offsets.h include in tls.h.
> > >    - Define lib-audit register layout inline with other architectures.
> > >    - Fix usage of locally defined register in or1k_get_got.  Also, fixup
> > >      indentation when using or1k_get_got.
> > >    - Cleanup abilists after rebasing, adding rseq and removing
> > >      empty files.
> > >    - Remove prctl and other unused entries in the linux Makefile.
> > >    - Fix STACK_ALIGN to 4 bytes, from incorrect copy-n-paste 16 bytes.
> > >    - Use default pthreadtypes-arch.h.
> > >    - Mention only soft-float supported in NEWS.
> > >    - Remove sysdeps/unix/sysv/linux/or1k/bits/timesize.h and use new
> > >      default.
> > > 
> > > Changes since v2:
> > >  - Fixed suggestions from Joseph Myers:
> > >    - Fix comment style, and description on top of each file
> > >    - Make sure macros have parentheses when needed,
> > >    - Bump required kernel down to 5.4.0 and document
> > >    - Regenerate arch-syscall.h
> > >  - Fixed suggestions from Adhemerval:
> > >    - Remove kernel_stat.h
> > >    - Just set MMAP2_PAGE_UNIT to 8K
> > >    - Remove ioctl.c and syscall.c files
> > >  - Update TCB alignment to 32 bytes
> > > 
> > > Changes since v1:
> > >  - Update api's as suggested by Florian
> > >  - Remove hard float support
> > >  - Updates to get all tests passing
> > >  - Split patch into managable bits similar to recent ARC port
> > > 
> > > Documentation:
> > > 
> > >   Architecture / ABI docs:
> > >    https://raw.githubusercontent.com/openrisc/doc/master/openrisc-arch-1.3-rev1.pdf
> > > 
> > > Test Results:
> > > 
> > >   build-many-glibcs.py:
> > > 
> > >    PASS with mainline ang gcc-11.
> > > 
> > >   Full test suite:
> > > 
> > >   This time I ran the test suite with timeout of 300 and with patch for forcing
> > >   O_LARGEFILE in open64 [0].  The test has one failure but it seems like flaky
> > >   test as it passed after the second run.
> > This is already approved, so I take these tests were done against and slight order
> > tree (which is fine btw).
> 
> Sorry, I forgot to update this bit for v5.  The patch for open64 is already
> upstream.
> 
> > > 
> > >     # results in file: /home/shorne/work/gnu-toolchain/log/test--20211226-162029.log
> > >     # test start:    2021-12-26T16:20:29+09:00
> > > 
> > >     # failures
> > >     FAIL: posix/tst-execveat   /* Running second time passes */
> > > 
> > >     # test finish:   2021-12-29T12:54:08+09:00
> > >     # test duration: 2 days 20 hours 33 minutes and 39 seconds
> > >     # test for file: tests.sum
> > >     # test wrapper:  /home/shorne/work/gnu-toolchain/glibc/scripts/cross-test-ssh.sh --timeoutfactor 300 10.0.0.5
> > > 
> > >     # summary
> > > 	  1 FAIL
> > >        4148 PASS
> > > 	 31 UNSUPPORTED
> > > 	 16 XFAIL
> > > 	  2 XPASS
> > > 
> > >     posix/tst-execveat.out:
> > > 	Timed out: killed the child process
> > > 	Termination time: 2021-12-29T01:02:42.433964340
> > > 	Last write to standard output: 2021-12-28T23:22:40.266363000
> > > 
> > >     tests.sum: https://gist.github.com/stffrdhrn/88c1fce0c54350258f1f5869068d015a
> > > 
> > >  [0] https://sourceware.org/pipermail/libc-alpha/2021-December/134634.html
> > > 
> > 
> > I approved the missing patch and I think the patches are ok to go in.  I am
> > curious about the posix/tst-execveat issues, but since it does not really 
> > have any arch-specific implementation I think it might be related to the
> > test environment (it would be good to know exactly what has caused the
> > failure so we can improve it).
> 
> It fails with what looks like a deadlock but I cannot reproduce it.  When it
> fails it times our after several minutes, when I run it again it passes right
> away.
> 
> The platform I run on loads binaries over NFS.  There may be some kind of race
> condition caused when binaries are loading slowly.
> 
> I will wait a day or so for comments then push this upstream.  If no objections,
> thanks for all your help reviewing.  Note, after pushing up stream I will also
> publish all of the updates to the glibc wiki.
> 
> -Stafford
  

* Stafford Horne:

> This is the OpenRISC port for glibc that I have been working on.

The port does not define PI_STATIC_AND_HIDDEN.  Is this really
necessary, or just an oversight due to the way the port was constructed
(presumably with MIPS as the template)?

PI_STATIC_AND_HIDDEN means that references to static functions and data
and symbols with hidden visibility do not need any run-time relocations
after the final link, with the build flags used by glibc.

Thanks,
Florian
  

On 24/01/2022 10:23, Florian Weimer via Libc-alpha wrote:
> * Stafford Horne:
> 
>> This is the OpenRISC port for glibc that I have been working on.
> 
> The port does not define PI_STATIC_AND_HIDDEN.  Is this really
> necessary, or just an oversight due to the way the port was constructed
> (presumably with MIPS as the template)?
> 
> PI_STATIC_AND_HIDDEN means that references to static functions and data
> and symbols with hidden visibility do not need any run-time relocations
> after the final link, with the build flags used by glibc.

At least the loader with a simple hello world does not fail with qemu with 
PI_STATIC_AND_HIDDEN set.

Staffork, could you confirm it is ok to make or1k use PI_STATIC_AND_HIDDEN?
  

On Mon, Jan 24, 2022 at 10:54:58AM -0300, Adhemerval Zanella wrote:
> 
> 
> On 24/01/2022 10:23, Florian Weimer via Libc-alpha wrote:
> > * Stafford Horne:
> > 
> >> This is the OpenRISC port for glibc that I have been working on.
> > 
> > The port does not define PI_STATIC_AND_HIDDEN.  Is this really
> > necessary, or just an oversight due to the way the port was constructed
> > (presumably with MIPS as the template)?
> > 
> > PI_STATIC_AND_HIDDEN means that references to static functions and data
> > and symbols with hidden visibility do not need any run-time relocations
> > after the final link, with the build flags used by glibc.
> 
> At least the loader with a simple hello world does not fail with qemu with 
> PI_STATIC_AND_HIDDEN set.
> 
> Staffork, could you confirm it is ok to make or1k use PI_STATIC_AND_HIDDEN?

Yes, this was just an oversight and it didn't show up during testing. I think
this is OK as described or1k does not need runtime relocations for hidden
symbols after the final link.

Shall I make the patch to add configure.ac?  Or do you have that ready to go
already?

-Stafford
  

On 24/01/2022 22:19, Stafford Horne wrote:
> On Mon, Jan 24, 2022 at 10:54:58AM -0300, Adhemerval Zanella wrote:
>>
>>
>> On 24/01/2022 10:23, Florian Weimer via Libc-alpha wrote:
>>> * Stafford Horne:
>>>
>>>> This is the OpenRISC port for glibc that I have been working on.
>>>
>>> The port does not define PI_STATIC_AND_HIDDEN.  Is this really
>>> necessary, or just an oversight due to the way the port was constructed
>>> (presumably with MIPS as the template)?
>>>
>>> PI_STATIC_AND_HIDDEN means that references to static functions and data
>>> and symbols with hidden visibility do not need any run-time relocations
>>> after the final link, with the build flags used by glibc.
>>
>> At least the loader with a simple hello world does not fail with qemu with 
>> PI_STATIC_AND_HIDDEN set.
>>
>> Staffork, could you confirm it is ok to make or1k use PI_STATIC_AND_HIDDEN?
> 
> Yes, this was just an oversight and it didn't show up during testing. I think
> this is OK as described or1k does not need runtime relocations for hidden
> symbols after the final link.
> 
> Shall I make the patch to add configure.ac?  Or do you have that ready to go
> already?

I would tested briefly with qemu-system, I will send a patch so you can
review.