diff options
| author | Josh Poimboeuf <[email protected]> | 2017-07-27 15:56:55 -0500 |
|---|---|---|
| committer | Ingo Molnar <[email protected]> | 2017-07-28 08:33:32 +0200 |
| commit | 5b8de48e82ba322483c925ce33f193e28e59a5fd (patch) | |
| tree | 27123a9427335b2d74a829af560a0d2dd117df8a /arch/x86/kernel/dumpstack.c | |
| parent | 0e2bb2bc14b3df754b0a86e87cd8923df0701a1b (diff) | |
objtool: Fix '-mtune=atom' decoding support in objtool 2.0
With '-mtune=atom', which is enabled with CONFIG_MATOM=y, GCC uses some
unusual instructions for setting up the stack.
Instead of:
mov %rsp, %rbp
it does:
lea (%rsp), %rbp
And instead of:
add imm, %rsp
it does:
lea disp(%rsp), %rsp
Add support for these instructions to the objtool decoder.
Reported-by: Arnd Bergmann <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Cc: Linus Torvalds <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Fixes: baa41469a7b9 ("objtool: Implement stack validation 2.0")
Link: http://lkml.kernel.org/r/4ea1db896e821226efe1f8e09f270771bde47e65.1501188854.git.jpoimboe@redhat.com
Signed-off-by: Ingo Molnar <[email protected]>
Diffstat (limited to 'arch/x86/kernel/dumpstack.c')
0 files changed, 0 insertions, 0 deletions