diff options
| author | Ilias Apalodimas <ilias.apalodimas@linaro.org> | 2025-05-20 08:21:24 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2025-05-29 18:42:37 -0600 |
| commit | 3679f24373d609b59e6434afb5253fd8c7af730a (patch) | |
| tree | 5d84f7f0fe8b3813104cd54ef1704c52a1c2f967 | |
| parent | 2c180949ec3e924020edbff00884f206e120b028 (diff) | |
kbuild: refactor modversions build rules
Backport from kernel
commit ee3e46b7efd2 ("kbuild: refactor modversions build rules")
Signed-off-by: Ilias Apalodimas <ilias.apalodimas@linaro.org>
| -rw-r--r-- | scripts/Makefile.build | 22 |
1 files changed, 9 insertions, 13 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index b2bf5a2c000..639091e7b29 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -171,34 +171,30 @@ $(obj)/%.symtypes : $(src)/%.c FORCE # (See cmd_cc_o_c + relevant part of rule_cc_o_c) quiet_cmd_cc_o_c = CC $(quiet_modtag) $@ - -ifndef CONFIG_MODVERSIONS cmd_cc_o_c = $(CC) $(c_flags) -c -o $@ $< -else +ifdef CONFIG_MODVERSIONS # When module versioning is enabled the following steps are executed: -# o compile a .tmp_<file>.o from <file>.c -# o if .tmp_<file>.o doesn't contain a __ksymtab version, i.e. does -# not export symbols, we just rename .tmp_<file>.o to <file>.o and -# are done. +# o compile a <file>.o from <file>.c +# o if <file>.o doesn't contain a __ksymtab version, i.e. does +# not export symbols, it's done # o otherwise, we calculate symbol versions using the good old # genksyms on the preprocessed source and postprocess them in a way # that they are usable as a linker script -# o generate <file>.o from .tmp_<file>.o using the linker to +# o generate .tmp_<file>.o from <file>.o using the linker to # replace the unresolved symbols __crc_exported_symbol with # the actual value of the checksum generated by genksyms -cmd_cc_o_c = $(CC) $(c_flags) -c -o $(@D)/.tmp_$(@F) $< +# o remove .tmp_<file>.o to <file>.o cmd_modversions = \ - if $(OBJDUMP) -h $(@D)/.tmp_$(@F) | grep -q __ksymtab; then \ + if $(OBJDUMP) -h $@ | grep -q __ksymtab; then \ $(call cmd_gensymtypes,$(KBUILD_SYMTYPES),$(@:.o=.symtypes)) \ > $(@D)/.tmp_$(@F:.o=.ver); \ \ - $(LD) $(KBUILD_LDFLAGS) -r -o $@ $(@D)/.tmp_$(@F) \ + $(LD) $(KBUILD_LDFLAGS) -r -o $(@D)/.tmp_$(@F) $@ \ -T $(@D)/.tmp_$(@F:.o=.ver); \ - rm -f $(@D)/.tmp_$(@F) $(@D)/.tmp_$(@F:.o=.ver); \ - else \ mv -f $(@D)/.tmp_$(@F) $@; \ + rm -f $(@D)/.tmp_$(@F:.o=.ver); \ fi; endif |