Messages in this thread Patch in this message | | | From | Uwe Kleine-König <> | Date | Fri, 7 Oct 2011 15:19:21 +0200 | Subject | [PATCH] kbuild: let object files depend on recordmcount instead of its sources |
| |
This has the upside that distributions only have to ship the recordmcount binary to allow building modules instead of recordmcount and it's sources.
Make still notices that the object files need to be rebuilt when recordmcount's sources change.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- scripts/Makefile.build | 9 ++++----- 1 files changed, 4 insertions(+), 5 deletions(-)
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index a0fd502..bc83e94 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -271,8 +271,7 @@ sub_cmd_record_mcount = \ if [ $(@) != "scripts/mod/empty.o" ]; then \ $(objtree)/scripts/recordmcount $(RECORDMCOUNT_FLAGS) "$(@)"; \ fi; -recordmcount_source := $(srctree)/scripts/recordmcount.c \ - $(srctree)/scripts/recordmcount.h +recordmcount_exec := $(objtree)/scripts/recordmcount else sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \ "$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \ @@ -280,7 +279,7 @@ sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH "$(OBJDUMP)" "$(OBJCOPY)" "$(CC) $(KBUILD_CFLAGS)" \ "$(LD)" "$(NM)" "$(RM)" "$(MV)" \ "$(if $(part-of-module),1,0)" "$(@)"; -recordmcount_source := $(srctree)/scripts/recordmcount.pl +recordmcount_exec := $(srctree)/scripts/recordmcount.pl endif cmd_record_mcount = \ if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then \ @@ -301,13 +300,13 @@ define rule_cc_o_c endef # Built-in and composite module parts -$(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE +$(obj)/%.o: $(src)/%.c $(recordmcount_exec) FORCE $(call cmd,force_checksrc) $(call if_changed_rule,cc_o_c) # Single-part modules are special since we need to mark them in $(MODVERDIR) -$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE +$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_exec) FORCE $(call cmd,force_checksrc) $(call if_changed_rule,cc_o_c) @{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod) -- 1.7.6.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |