Le 24/06/2022 à 20:32, Sathvika Vasireddy a écrit :

These patches are rebased on top of objtool/core
branch of the tip tree, and are tested on
ppc64le with ppc64le_defconfig.

Seems like objtool/core has been merged in 5.19. I was able to apply 
your series on top of powerpc/merge branch. Only a small conflict with 
patch "objtool: Add --mnop as an option to --mcount" because of commit 
b42d23065024 ("kbuild: factor out the common objtool arguments")

Christophe Leroy (3):
   objtool: Fix SEGFAULT
   objtool: Use target file endianness instead of a compiled constant
   objtool: Use target file class size instead of a compiled constant

Sathvika Vasireddy(9):
   objtool: Add --mnop as an option to --mcount
   powerpc: Skip objtool from running on VDSO files
   objtool: Read special sections with alts only when specific options are selected
   objtool: Use macros to define arch specific reloc types
   objtool: Add arch specific function arch_ftrace_match()
   objtool/powerpc: Enable objtool to be built on ppc
   objtool/powerpc: Add --mcount specific implementation
   powerpc: Remove unreachable() from WARN_ON()
   objtool/powerpc: Fix unannotated intra-function call warnings

  Makefile                                      |  4 +-
  arch/powerpc/Kconfig                          |  2 +
  arch/powerpc/include/asm/bug.h                |  1 -
  arch/powerpc/kernel/entry_64.S                |  2 +
  arch/powerpc/kernel/exceptions-64s.S          |  7 +-
  arch/powerpc/kernel/head_64.S                 |  7 +-
  arch/powerpc/kernel/misc_64.S                 |  4 +-
  arch/powerpc/kernel/vdso/Makefile             |  2 +
  arch/powerpc/kernel/vector.S                  |  4 +-
  arch/powerpc/kvm/book3s_hv_interrupts.S       |  4 +-
  arch/powerpc/kvm/book3s_hv_rmhandlers.S       | 25 +++--
  arch/x86/Kconfig                              |  1 +
  scripts/Makefile.build                        |  1 +
  tools/objtool/arch/powerpc/Build              |  2 +
  tools/objtool/arch/powerpc/decode.c           | 96 +++++++++++++++++++
  .../arch/powerpc/include/arch/cfi_regs.h      | 11 +++
  tools/objtool/arch/powerpc/include/arch/elf.h | 10 ++
  .../arch/powerpc/include/arch/special.h       | 21 ++++
  tools/objtool/arch/powerpc/special.c          | 19 ++++
  tools/objtool/arch/x86/decode.c               |  8 ++
  tools/objtool/arch/x86/include/arch/elf.h     |  2 +
  .../arch/x86/include/arch/endianness.h        |  9 --
  tools/objtool/builtin-check.c                 | 14 +++
  tools/objtool/check.c                         | 51 +++++-----
  tools/objtool/elf.c                           |  8 +-
  tools/objtool/include/objtool/arch.h          |  2 +
  tools/objtool/include/objtool/builtin.h       |  1 +
  tools/objtool/include/objtool/elf.h           |  8 ++
  tools/objtool/include/objtool/endianness.h    | 32 +++----
  tools/objtool/orc_dump.c                      | 11 ++-
  tools/objtool/orc_gen.c                       |  4 +-
  tools/objtool/special.c                       |  3 +-
  32 files changed, 305 insertions(+), 71 deletions(-)
  create mode 100644 tools/objtool/arch/powerpc/Build
  create mode 100644 tools/objtool/arch/powerpc/decode.c
  create mode 100644 tools/objtool/arch/powerpc/include/arch/cfi_regs.h
  create mode 100644 tools/objtool/arch/powerpc/include/arch/elf.h
  create mode 100644 tools/objtool/arch/powerpc/include/arch/special.h
  create mode 100644 tools/objtool/arch/powerpc/special.c
  delete mode 100644 tools/objtool/arch/x86/include/arch/endianness.h