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| author | Jiri Olsa <jolsa@kernel.org> | 2024-03-22 16:49:36 +0300 |
|---|---|---|
| committer | Andrii Nakryiko <andrii@kernel.org> | 2024-03-22 20:01:17 +0300 |
| commit | af8d27bf15c8d68c60d830552055fcdba5b5f045 (patch) | |
| tree | 1cf13aac3cf073e16278b5a97614019bca93123e /tools/include | |
| parent | 1684d6eb99e480ff653af60e20ff5e7e55e69ccd (diff) | |
| download | linux-af8d27bf15c8d68c60d830552055fcdba5b5f045.tar.xz | |
selftests/bpf: Mark uprobe trigger functions with nocf_check attribute
Some distros seem to enable the -fcf-protection=branch by default,
which breaks our setup on first instruction of uprobe trigger
functions and place there endbr64 instruction.
Marking them with nocf_check attribute to skip that.
Ignoring unknown attribute warning in gcc for bench objects, because
nocf_check can be used only when -fcf-protection=branch is enabled,
otherwise we get a warning and break compilation.
Signed-off-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Andrii Nakryiko <andrii@kernel.org>
Link: https://lore.kernel.org/bpf/20240322134936.1075395-1-jolsa@kernel.org
Diffstat (limited to 'tools/include')
| -rw-r--r-- | tools/include/linux/compiler.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 7b65566f3e42..8a63a9913495 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -58,6 +58,10 @@ #define noinline #endif +#ifndef __nocf_check +#define __nocf_check __attribute__((nocf_check)) +#endif + /* Are two types/vars the same type (ignoring qualifiers)? */ #ifndef __same_type # define __same_type(a, b) __builtin_types_compatible_p(typeof(a), typeof(b)) |