2 Commits

Author SHA1 Message Date
Carlos Llamas
946d462346 kbuild: prefer ${NM} in check-function-names.sh
The check-function-names.sh scripts invokes 'nm' directly and this can
be problematic during cross-compilation when the toolchain is different
from the system's default (e.g. LLVM=1).

  scripts/check-function-names.sh: nm: not found

Let's prefer the ${NM} variable which is already set by kbuild. However,
still fallback to plain 'nm' to ensure the script is still usable when
called directly.

Fixes: 93863f3f85 ("kbuild: Check for functions with ambiguous -ffunction-sections section names")
Signed-off-by: Carlos Llamas <cmllamas@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Link: https://patch.msgid.link/20251218175824.3122690-1-cmllamas@google.com
Signed-off-by: Nicolas Schier <nsc@kernel.org>
2026-01-14 14:13:41 +01:00
Josh Poimboeuf
93863f3f85 kbuild: Check for functions with ambiguous -ffunction-sections section names
Commit 9c7dc1dd89 ("objtool: Warn on functions with ambiguous
-ffunction-sections section names") only works for drivers which are
compiled on architectures supported by objtool.

Make a script to perform the same check for all architectures.

Signed-off-by: Josh Poimboeuf <jpoimboe@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Link: https://patch.msgid.link/a6a49644a34964f7e02f3a8ce43af03e72817180.1763669451.git.jpoimboe@kernel.org
2025-11-21 10:04:10 +01:00