diff options
| author | Masahiro Yamada <masahiroy@kernel.org> | 2023-01-04 23:04:59 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2023-01-05 16:53:48 +0900 |
| commit | 735aec59afb18c3e2da0a637037e69ad62dbda6a (patch) | |
| tree | e822cfb13ab2bc9a81d66584a70fa298dac1241c /scripts | |
| parent | a53da43decaa3936998fa7dce2346855a6942166 (diff) | |
| download | lwn-735aec59afb18c3e2da0a637037e69ad62dbda6a.tar.gz lwn-735aec59afb18c3e2da0a637037e69ad62dbda6a.zip | |
kbuild: readd -w option when vmlinux.o or Module.symver is missing
Commit 63ffe00d8c93 ("kbuild: Fix running modpost with musl libc")
accidentally turned the unresolved symbol warnings into errors when
vmlinux.o (for in-tree builds) or Module.symver (for external module
builds) is missing.
In those cases, unresolved symbols are expected, but the -w option
is not set because 'missing-input' is referenced before set.
Move $(missing-input) back to the original place. This should be fine
for musl libc because vmlinux.o and -w are not added at the same time.
With this change, -w may be passed twice, but it is not a big deal.
Link: https://lore.kernel.org/all/b56a03b8-2a2a-f833-a5d2-cdc50a7ca2bb@cschramm.eu/
Fixes: 63ffe00d8c93 ("kbuild: Fix running modpost with musl libc")
Reported-by: Christopher Schramm <debian@cschramm.eu>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Tested-by: Samuel Holland <samuel@sholland.org>
Diffstat (limited to 'scripts')
| -rw-r--r-- | scripts/Makefile.modpost | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/scripts/Makefile.modpost b/scripts/Makefile.modpost index 0ee296cf520c..43343e13c542 100644 --- a/scripts/Makefile.modpost +++ b/scripts/Makefile.modpost @@ -44,6 +44,7 @@ modpost-args = \ $(if $(CONFIG_MODVERSIONS),-m) \ $(if $(CONFIG_MODULE_SRCVERSION_ALL),-a) \ $(if $(CONFIG_SECTION_MISMATCH_WARN_ONLY),,-E) \ + $(if $(KBUILD_MODPOST_WARN),-w) \ $(if $(KBUILD_NSDEPS),-d $(MODULES_NSDEPS)) \ $(if $(CONFIG_MODULE_ALLOW_MISSING_NAMESPACE_IMPORTS)$(KBUILD_NSDEPS),-N) \ -o $@ @@ -55,10 +56,6 @@ ifneq ($(findstring i,$(filter-out --%,$(MAKEFLAGS))),) modpost-args += -n endif -ifneq ($(KBUILD_MODPOST_WARN)$(missing-input),) -modpost-args += -w -endif - # Read out modules.order to pass in modpost. # Otherwise, allmodconfig would fail with "Argument list too long". ifdef KBUILD_MODULES @@ -124,6 +121,10 @@ modpost-args += -e $(addprefix -i , $(KBUILD_EXTRA_SYMBOLS)) endif # ($(KBUILD_EXTMOD),) +ifneq ($(missing-input),) +modpost-args += -w +endif + quiet_cmd_modpost = MODPOST $@ cmd_modpost = \ $(if $(missing-input), \ |