diff options
| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2021-09-14 17:41:32 +0300 |
|---|---|---|
| committer | Steven Rostedt (VMware) <rostedt@goodmis.org> | 2021-10-01 04:24:07 +0300 |
| commit | eb4a3f7d78c7cf03654dfebdb2df64bd00a7af10 (patch) | |
| tree | 3d897ca5ef027b54f7715b6989ae194bb26afaeb /arch/x86/include/asm/unwind_hints.h | |
| parent | 5b284b1933688ff18099b2cb8e83456bdd149e10 (diff) | |
| download | linux-eb4a3f7d78c7cf03654dfebdb2df64bd00a7af10.tar.xz | |
x86/kprobes: Add UNWIND_HINT_FUNC on kretprobe_trampoline()
Add UNWIND_HINT_FUNC on __kretprobe_trampoline() code so that ORC
information is generated on the __kretprobe_trampoline() correctly.
Also, this uses STACK_FRAME_NON_STANDARD_FP(), CONFIG_FRAME_POINTER-
-specific version of STACK_FRAME_NON_STANDARD().
Link: https://lkml.kernel.org/r/163163049242.489837.11970969750993364293.stgit@devnote2
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Tested-by: Andrii Nakryiko <andrii@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/x86/include/asm/unwind_hints.h')
| -rw-r--r-- | arch/x86/include/asm/unwind_hints.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/arch/x86/include/asm/unwind_hints.h b/arch/x86/include/asm/unwind_hints.h index 8e574c0afef8..8b33674288ea 100644 --- a/arch/x86/include/asm/unwind_hints.h +++ b/arch/x86/include/asm/unwind_hints.h @@ -52,6 +52,11 @@ UNWIND_HINT sp_reg=ORC_REG_SP sp_offset=8 type=UNWIND_HINT_TYPE_FUNC .endm +#else + +#define UNWIND_HINT_FUNC \ + UNWIND_HINT(ORC_REG_SP, 8, UNWIND_HINT_TYPE_FUNC, 0) + #endif /* __ASSEMBLY__ */ #endif /* _ASM_X86_UNWIND_HINTS_H */ |