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

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





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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