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[PATCH v3 00/13] nds32 glibc port, v3


This is the third submission of the nds32 port. Based on the commit
2b69fecb9d0681a124662dfba89291ad473aa55f (10 Jun), we modify the nds32
port to fit the newer glibc generic flow and Joseph's comments. The
nds32 port for Linux had been included in 4.17. However, the nds32 port
for GCC and Binutils on upstream still cannot work for this patchest.
Therefore, we put the workable GCC and Binutils in our private git
repository as below.

1. GCC git repo path:
  path: https://github.com/andestech/gcc.git
  branch: nds32-8.1.0-upstream
2. Binutils git repo path:
  path: https://github.com/andestech/binutils.git 
  branch: nds32-binutils-2.30-branch-open
3. Glibc git repo
  path: https://github.com/andestech/glibc.git 
  branch: nds32-glibc-2.27-v3

The patchest is also cross-tested on the FPGA board with Linux 4.17 and
the FAIL cases are same with v2 patchset. The testing result is
summarized as below.

 8 FAIL (16 XFAIL cases are not included)
 4982 PASS (2 XPASS cases are not included)
 15 UNSUPPORTED

Detail result:
https://github.com/andestech/glibc/blob/nds32-glibc-2.27-v0/sysdeps/nds32/misc/glibc_final_testing_result

FAIL cases:
 1.   The following 6 testcase fail because the testing environment lacks
    native python: 
      ./nptl/test-condattr-printers.test-result
      ./nptl/test-cond-printers.test-result
      ./nptl/test-mutexattr-printers.test-result
      ./nptl/test-mutex-printers.test-result
      ./nptl/test-rwlockattr-printers.test-result
      ./nptl/test-rwlock-printers.test-result

 2. stdio-common/bug22: 
      The required memory size for this testcase is more than 2 GB but the
    DRAM size on our FPGA is just 2GB. Therefore, the errno is set as
    ENOMEM instead of EOVERFLOW. 
 3. sunrpc/bug20790: 
      It fails because the testing environment lacks native cpp


A short log of the changes since our v2 includes:
* Add MAP_FIXED_NOREPLACE definition to mman.h
* Mark _init and _fini as hidden in nds32 crti.S
* Replace u_long with unsigned long int
* Add a space between __attribute__ and '((' in sysdeps/nds32/bits/setjmp.h.
* Remove fno-isolate-erroneous-paths-dereference option from nds32 Makefile
  after adding __builtin_trap support to gcc
* Set arch_minimum_kernel as 4.17.0
* Replace 'long' and 'unsigned long' with 'long int' and 'unsigned long int'
* Remove the comma which is after the last element of an enum in
  sysdeps/nds32/bits/fenv.h
* Correct copyright
* Remove empty ABI test baselines
* Code cleanup for syscall.c
* Code cleanup for sysdeps/nds32/tls-macros.h

[v2] The highlight of the changes since our v1 includes:
* Update ABI list.
* Upadate libm-test-ulps file.
* Add fno-isolate-erroneous-paths-dereference compile option to
  CFLAGS-divrem.c to avoid compiler calling abort() function for
  divde-by-zero case.
* Update the list of register preservation and move the list from
  sysdeps/nds32/__longjmp.S to sysdeps/nds32/setjmp.h.
* Remove sysdeps/nds32/backtrace.c.
* Remove big endian support.
* Add description for compile option -minline-asm-r15 to configure file.
* Refine sysdeps/nds32/dl-machine.h.
* Remove sysdeps/nds32/math_private.h
* Refine memcpy and memset function of nds32 version
* Define THREAD_GSCOPE_IN_TCB in sysdeps/nds32/nptl/tls.h to fix compiler
  error
* Rename dynamic linker based on supported ABI.
* Remove big endian support
* To use generic fork function, define __ASSUME_CLONE_BACKWARDS and remove
  nds32 arch-fork.h
* Remove nds32 kernel_sigaction.h
* Remove nds32 readahead.c
* Remove unused macro from sigcontextinfo.h
* Refine nds32 syscall.c
* Add MAP_SYNC from Linux 4.15
* Add change log to the end of each commit.


CheWei Chunang (1):
  Add nds32 port to build-many-glibcs.py

Vincent Chen (12):
  nds32: Build Infastructure
  nds32: ABI Implementation
  nds32: Thread-Local Storage Support
  nds32: Startup and Dynamic Loader
  nds32: Generic <math.h> and soft-fp Routines
  nds32: Atomic and Locking Routines
  nds32: Linux Syscall Interface
  nds32: Linux ABI
  nds32: Add ABI list
  Skeleton documentation for the nds32 port
  Add Andes nds32 dynamic relocation type to elf/elf.h.
  Add nds32 entries to config.h.in

 NEWS                                               |    4 +
 README                                             |    1 +
 config.h.in                                        |    3 +
 elf/elf.h                                          |   10 +
 scripts/build-many-glibcs.py                       |    6 +
 sysdeps/nds32/Implies                              |    3 +
 sysdeps/nds32/Makefile                             |    9 +
 sysdeps/nds32/__longjmp.S                          |   35 +
 sysdeps/nds32/atomic-machine.h                     |  163 ++
 sysdeps/nds32/bits/endian.h                        |   29 +
 sysdeps/nds32/bits/fenv.h                          |   49 +
 sysdeps/nds32/bits/link.h                          |   54 +
 sysdeps/nds32/bits/setjmp.h                        |   54 +
 sysdeps/nds32/bsd-_setjmp.S                        |    1 +
 sysdeps/nds32/bsd-setjmp.S                         |    1 +
 sysdeps/nds32/configure                            |   10 +
 sysdeps/nds32/configure.ac                         |   10 +
 sysdeps/nds32/crti.S                               |   79 +
 sysdeps/nds32/crtn.S                               |   53 +
 sysdeps/nds32/dl-machine.h                         |  405 ++++
 sysdeps/nds32/dl-sysdep.h                          |   22 +
 sysdeps/nds32/dl-tls.h                             |   28 +
 sysdeps/nds32/dl-tlsdesc.S                         |  104 +
 sysdeps/nds32/dl-tlsdesc.h                         |   62 +
 sysdeps/nds32/dl-trampoline.S                      |  164 ++
 sysdeps/nds32/gccframe.h                           |   21 +
 sysdeps/nds32/jmpbuf-offsets.h                     |   34 +
 sysdeps/nds32/jmpbuf-unwind.h                      |   47 +
 sysdeps/nds32/ldsodefs.h                           |   44 +
 sysdeps/nds32/linkmap.h                            |   26 +
 sysdeps/nds32/machine-gmon.h                       |   34 +
 sysdeps/nds32/math-tests.h                         |   29 +
 sysdeps/nds32/memcpy.S                             |  102 +
 sysdeps/nds32/memset.S                             |  120 ++
 sysdeps/nds32/memusage.h                           |   21 +
 sysdeps/nds32/nofpu/Implies                        |    1 +
 sysdeps/nds32/nofpu/libm-test-ulps                 |  390 ++++
 sysdeps/nds32/nofpu/libm-test-ulps-name            |    1 +
 sysdeps/nds32/nptl/Makefile                        |    4 +
 sysdeps/nds32/nptl/bits/pthreadtypes-arch.h        |   71 +
 sysdeps/nds32/nptl/bits/semaphore.h                |   32 +
 sysdeps/nds32/nptl/pthread-offsets.h               |   24 +
 sysdeps/nds32/nptl/pthreaddef.h                    |   33 +
 sysdeps/nds32/nptl/tcb-offsets.sym                 |    7 +
 sysdeps/nds32/nptl/tls.h                           |  161 ++
 sysdeps/nds32/preconfigure                         |   30 +
 sysdeps/nds32/setjmp.S                             |   66 +
 sysdeps/nds32/sfp-machine.h                        |   69 +
 sysdeps/nds32/sotruss-lib.c                        |   50 +
 sysdeps/nds32/stackinfo.h                          |   32 +
 sysdeps/nds32/start.S                              |  124 ++
 sysdeps/nds32/strcmp.S                             |  105 +
 sysdeps/nds32/strcpy.S                             |   75 +
 sysdeps/nds32/sysdep.h                             |   70 +
 sysdeps/nds32/tls-macros.h                         |   75 +
 sysdeps/nds32/tlsdesc.c                            |   38 +
 sysdeps/nds32/tlsdesc.sym                          |   16 +
 sysdeps/nds32/tst-audit.h                          |   23 +
 sysdeps/unix/sysv/linux/nds32/Implies              |    3 +
 sysdeps/unix/sysv/linux/nds32/Makefile             |   17 +
 sysdeps/unix/sysv/linux/nds32/Versions             |   11 +
 sysdeps/unix/sysv/linux/nds32/bits/fcntl.h         |   54 +
 sysdeps/unix/sysv/linux/nds32/bits/mman.h          |   40 +
 sysdeps/unix/sysv/linux/nds32/bits/shm.h           |  102 +
 sysdeps/unix/sysv/linux/nds32/c++-types.data       |   67 +
 sysdeps/unix/sysv/linux/nds32/clone.S              |   66 +
 sysdeps/unix/sysv/linux/nds32/configure            |    4 +
 sysdeps/unix/sysv/linux/nds32/configure.ac         |    4 +
 sysdeps/unix/sysv/linux/nds32/dl-static.c          |   84 +
 sysdeps/unix/sysv/linux/nds32/getcontext.S         |   52 +
 sysdeps/unix/sysv/linux/nds32/init-first.c         |   50 +
 sysdeps/unix/sysv/linux/nds32/ipc_priv.h           |   22 +
 sysdeps/unix/sysv/linux/nds32/jmp_buf-macros.h     |   26 +
 sysdeps/unix/sysv/linux/nds32/kernel-features.h    |   31 +
 sysdeps/unix/sysv/linux/nds32/ld.abilist           |    9 +
 sysdeps/unix/sysv/linux/nds32/ldconfig.h           |   27 +
 sysdeps/unix/sysv/linux/nds32/ldsodefs.h           |   32 +
 .../unix/sysv/linux/nds32/libBrokenLocale.abilist  |    1 +
 sysdeps/unix/sysv/linux/nds32/libanl.abilist       |    4 +
 sysdeps/unix/sysv/linux/nds32/libc-vdso.h          |   36 +
 sysdeps/unix/sysv/linux/nds32/libc.abilist         | 2077 ++++++++++++++++++++
 sysdeps/unix/sysv/linux/nds32/libcrypt.abilist     |    7 +
 sysdeps/unix/sysv/linux/nds32/libdl.abilist        |    9 +
 sysdeps/unix/sysv/linux/nds32/libm.abilist         |  753 +++++++
 sysdeps/unix/sysv/linux/nds32/libnsl.abilist       |  120 ++
 sysdeps/unix/sysv/linux/nds32/libpthread.abilist   |  216 ++
 sysdeps/unix/sysv/linux/nds32/libresolv.abilist    |   79 +
 sysdeps/unix/sysv/linux/nds32/librt.abilist        |   35 +
 sysdeps/unix/sysv/linux/nds32/libthread_db.abilist |   40 +
 sysdeps/unix/sysv/linux/nds32/libutil.abilist      |    6 +
 sysdeps/unix/sysv/linux/nds32/localplt.data        |   19 +
 sysdeps/unix/sysv/linux/nds32/makecontext.c        |   57 +
 sysdeps/unix/sysv/linux/nds32/profil-counter.h     |   31 +
 sysdeps/unix/sysv/linux/nds32/pt-vfork.S           |    1 +
 sysdeps/unix/sysv/linux/nds32/setcontext.S         |   65 +
 sysdeps/unix/sysv/linux/nds32/shlib-versions       |    7 +
 sysdeps/unix/sysv/linux/nds32/sigcontextinfo.h     |   35 +
 sysdeps/unix/sysv/linux/nds32/swapcontext.S        |   57 +
 sysdeps/unix/sysv/linux/nds32/sys/cachectl.h       |   34 +
 sysdeps/unix/sysv/linux/nds32/sys/procfs.h         |  123 ++
 sysdeps/unix/sysv/linux/nds32/sys/ucontext.h       |   85 +
 sysdeps/unix/sysv/linux/nds32/sys/user.h           |   26 +
 sysdeps/unix/sysv/linux/nds32/syscall.c            |   39 +
 sysdeps/unix/sysv/linux/nds32/syscalls.list        |    2 +
 sysdeps/unix/sysv/linux/nds32/sysctl.mk            |    1 +
 sysdeps/unix/sysv/linux/nds32/sysdep.c             |   30 +
 sysdeps/unix/sysv/linux/nds32/sysdep.h             |  337 ++++
 sysdeps/unix/sysv/linux/nds32/ucontext_i.sym       |   25 +
 sysdeps/unix/sysv/linux/nds32/vfork.S              |   46 +
 109 files changed, 8438 insertions(+)
 create mode 100644 sysdeps/nds32/Implies
 create mode 100644 sysdeps/nds32/Makefile
 create mode 100644 sysdeps/nds32/__longjmp.S
 create mode 100644 sysdeps/nds32/atomic-machine.h
 create mode 100644 sysdeps/nds32/bits/endian.h
 create mode 100644 sysdeps/nds32/bits/fenv.h
 create mode 100644 sysdeps/nds32/bits/link.h
 create mode 100644 sysdeps/nds32/bits/setjmp.h
 create mode 100644 sysdeps/nds32/bsd-_setjmp.S
 create mode 100644 sysdeps/nds32/bsd-setjmp.S
 create mode 100755 sysdeps/nds32/configure
 create mode 100644 sysdeps/nds32/configure.ac
 create mode 100644 sysdeps/nds32/crti.S
 create mode 100644 sysdeps/nds32/crtn.S
 create mode 100644 sysdeps/nds32/dl-machine.h
 create mode 100644 sysdeps/nds32/dl-sysdep.h
 create mode 100644 sysdeps/nds32/dl-tls.h
 create mode 100644 sysdeps/nds32/dl-tlsdesc.S
 create mode 100644 sysdeps/nds32/dl-tlsdesc.h
 create mode 100644 sysdeps/nds32/dl-trampoline.S
 create mode 100644 sysdeps/nds32/gccframe.h
 create mode 100644 sysdeps/nds32/jmpbuf-offsets.h
 create mode 100644 sysdeps/nds32/jmpbuf-unwind.h
 create mode 100644 sysdeps/nds32/ldsodefs.h
 create mode 100644 sysdeps/nds32/linkmap.h
 create mode 100644 sysdeps/nds32/machine-gmon.h
 create mode 100644 sysdeps/nds32/math-tests.h
 create mode 100644 sysdeps/nds32/memcpy.S
 create mode 100644 sysdeps/nds32/memset.S
 create mode 100644 sysdeps/nds32/memusage.h
 create mode 100644 sysdeps/nds32/nofpu/Implies
 create mode 100644 sysdeps/nds32/nofpu/libm-test-ulps
 create mode 100644 sysdeps/nds32/nofpu/libm-test-ulps-name
 create mode 100644 sysdeps/nds32/nptl/Makefile
 create mode 100644 sysdeps/nds32/nptl/bits/pthreadtypes-arch.h
 create mode 100644 sysdeps/nds32/nptl/bits/semaphore.h
 create mode 100644 sysdeps/nds32/nptl/pthread-offsets.h
 create mode 100644 sysdeps/nds32/nptl/pthreaddef.h
 create mode 100644 sysdeps/nds32/nptl/tcb-offsets.sym
 create mode 100644 sysdeps/nds32/nptl/tls.h
 create mode 100644 sysdeps/nds32/preconfigure
 create mode 100644 sysdeps/nds32/setjmp.S
 create mode 100644 sysdeps/nds32/sfp-machine.h
 create mode 100644 sysdeps/nds32/sotruss-lib.c
 create mode 100644 sysdeps/nds32/stackinfo.h
 create mode 100644 sysdeps/nds32/start.S
 create mode 100644 sysdeps/nds32/strcmp.S
 create mode 100644 sysdeps/nds32/strcpy.S
 create mode 100644 sysdeps/nds32/sysdep.h
 create mode 100644 sysdeps/nds32/tls-macros.h
 create mode 100644 sysdeps/nds32/tlsdesc.c
 create mode 100644 sysdeps/nds32/tlsdesc.sym
 create mode 100644 sysdeps/nds32/tst-audit.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Implies
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Makefile
 create mode 100644 sysdeps/unix/sysv/linux/nds32/Versions
 create mode 100644 sysdeps/unix/sysv/linux/nds32/bits/fcntl.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/bits/mman.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/bits/shm.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/c++-types.data
 create mode 100644 sysdeps/unix/sysv/linux/nds32/clone.S
 create mode 100755 sysdeps/unix/sysv/linux/nds32/configure
 create mode 100644 sysdeps/unix/sysv/linux/nds32/configure.ac
 create mode 100644 sysdeps/unix/sysv/linux/nds32/dl-static.c
 create mode 100644 sysdeps/unix/sysv/linux/nds32/getcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/nds32/init-first.c
 create mode 100644 sysdeps/unix/sysv/linux/nds32/ipc_priv.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/jmp_buf-macros.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/kernel-features.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/ld.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/ldconfig.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/ldsodefs.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libBrokenLocale.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libanl.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libc-vdso.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libc.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libcrypt.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libdl.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libm.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libnsl.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libpthread.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libresolv.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/librt.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libthread_db.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/libutil.abilist
 create mode 100644 sysdeps/unix/sysv/linux/nds32/localplt.data
 create mode 100644 sysdeps/unix/sysv/linux/nds32/makecontext.c
 create mode 100644 sysdeps/unix/sysv/linux/nds32/profil-counter.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/pt-vfork.S
 create mode 100644 sysdeps/unix/sysv/linux/nds32/setcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/nds32/shlib-versions
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sigcontextinfo.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/swapcontext.S
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sys/cachectl.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sys/procfs.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sys/ucontext.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sys/user.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/syscall.c
 create mode 100644 sysdeps/unix/sysv/linux/nds32/syscalls.list
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sysctl.mk
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sysdep.c
 create mode 100644 sysdeps/unix/sysv/linux/nds32/sysdep.h
 create mode 100644 sysdeps/unix/sysv/linux/nds32/ucontext_i.sym
 create mode 100644 sysdeps/unix/sysv/linux/nds32/vfork.S

-- 
2.7.4


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