[PATCH v2 0/3] objtool: Extend CFA updating/checking

[Julien Thierry]

Hi,

The following patches are the result of limitation found on the CFA
management code when trying to validate arm64 frames. I tried to keep
things simple and not contradict current CFA management logic nor
introduce too many corner cases.

Changes since V1[1]:
- Minor cleanups/rewording from discussion with Josh

[1] https://www.spinics.net/lists/kernel/msg3662146.html

Thanks,

Julien

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Julien Thierry (3):
  objtool: check: Fully validate the stack frame
  objtool: check: Support addition to set CFA base
  objtool: check: Make SP memory operation match PUSH/POP semantics

 tools/objtool/arch/x86/include/cfi_regs.h |  3 ++
 tools/objtool/cfi.h                       |  2 +
 tools/objtool/check.c                     | 54 +++++++++++++++++++++--
 3 files changed, 55 insertions(+), 4 deletions(-)

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2.25.4