diff options
| author | Arnd Bergmann <arnd@arndb.de> | 2026-03-06 17:33:07 +0100 |
|---|---|---|
| committer | Nicolas Schier <nsc@kernel.org> | 2026-03-20 21:43:35 +0100 |
| commit | a261f6dff3c1653c19c065c3b3650c625447b8a7 (patch) | |
| tree | f2075e1b998413cf70863e582b1b6a0f94b8498e /scripts | |
| parent | c9bb03ac2c66bc5aa81b51ea0792477524c2763a (diff) | |
check-uapi: link into shared objects
While testing ABI changes across all architectures, I found that abidiff
sometimes produces nonsensical output. Further debugging identified
missing or broken libelf support for architecture specific relocations
in ET_REL binaries as the source of the problem[1].
Change the script to no longer produce a relocatable object file but
instead create a shared library for each header. This makes abidiff
work for all of the architectures in upstream linux kernels.
Link: https://sourceware.org/bugzilla/show_bug.cgi?id=33869
Cc: stable@vger.kernel.org
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Thomas Weißschuh <linux@weissschuh.net>
Acked-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20260306163309.2015837-2-arnd@kernel.org
Signed-off-by: Nicolas Schier <nsc@kernel.org>
Diffstat (limited to 'scripts')
| -rwxr-xr-x | scripts/check-uapi.sh | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/scripts/check-uapi.sh b/scripts/check-uapi.sh index 955581735cb3..9fa45cbdecc2 100755 --- a/scripts/check-uapi.sh +++ b/scripts/check-uapi.sh @@ -178,8 +178,11 @@ do_compile() { local -r inc_dir="$1" local -r header="$2" local -r out="$3" - printf "int main(void) { return 0; }\n" | \ - "$CC" -c \ + printf "int f(void) { return 0; }\n" | \ + "$CC" \ + -shared \ + -nostdlib \ + -fPIC \ -o "$out" \ -x c \ -O0 \ |