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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2021-01-21 22:29:23 +0100 |
|---|---|---|
| committer | Josh Poimboeuf <jpoimboe@redhat.com> | 2021-01-26 18:12:00 +0100 |
| commit | 081df94301e317e84c3413686043987da2c3e39d (patch) | |
| tree | 7084e05cb43a65f658eff17cdc15eabc51522118 /tools | |
| parent | objtool: Assume only ELF functions do sibling calls (diff) | |
| download | linux-081df94301e317e84c3413686043987da2c3e39d.tar.xz linux-081df94301e317e84c3413686043987da2c3e39d.zip | |
objtool: Add asm version of STACK_FRAME_NON_STANDARD
To be used for adding asm functions to the ignore list. The "aw" is
needed to help the ELF section metadata match GCC-created sections.
Otherwise the linker creates duplicate sections instead of combining
them.
Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com>
Link: https://lore.kernel.org/r/8faa476f9a5ac89af27944ec184c89f95f3c6c49.1611263462.git.jpoimboe@redhat.com
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/include/linux/objtool.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/tools/include/linux/objtool.h b/tools/include/linux/objtool.h index 577f51436cf9..add1c6eb157e 100644 --- a/tools/include/linux/objtool.h +++ b/tools/include/linux/objtool.h @@ -109,6 +109,12 @@ struct unwind_hint { .popsection .endm +.macro STACK_FRAME_NON_STANDARD func:req + .pushsection .discard.func_stack_frame_non_standard, "aw" + .long \func - . + .popsection +.endm + #endif /* __ASSEMBLY__ */ #else /* !CONFIG_STACK_VALIDATION */ @@ -122,6 +128,8 @@ struct unwind_hint { #define ANNOTATE_INTRA_FUNCTION_CALL .macro UNWIND_HINT sp_reg:req sp_offset=0 type:req end=0 .endm +.macro STACK_FRAME_NON_STANDARD func:req +.endm #endif #endif /* CONFIG_STACK_VALIDATION */ |