Commit 44e6a206 authored by Michal Marek's avatar Michal Marek Committed by Steven Rostedt
Browse files

ftrace/kbuild: Add recordmcount files to force full build 



Modifications to recordmcount must be performed on all object
files to stay consistent with what the kernel code may expect.
Add the recordmcount files to the main dependencies to make sure
any change to them causes a full recompile.

Signed-off-by: default avatarMichal Marek <mmarek@suse.cz>
Link: http://lkml.kernel.org/r/20110517133646.GP13293@sepie.suse.cz


Signed-off-by: default avatarSteven Rostedt <rostedt@goodmis.org>
parent 449a66fd

scripts/Makefile.build

+5 −2
Original line number Diff line number Diff line
@@ -252,6 +252,8 @@ sub_cmd_record_mcount = \ 
	if [ $(@) != "scripts/mod/empty.o" ]; then	\

		$(objtree)/scripts/recordmcount "$(@)";	\

	fi;

recordmcount_source := $(srctree)/scripts/recordmcount.c \

		    $(srctree)/scripts/recordmcount.h

else

sub_cmd_record_mcount = set -e ; perl $(srctree)/scripts/recordmcount.pl "$(ARCH)" \

	"$(if $(CONFIG_CPU_BIG_ENDIAN),big,little)" \
@@ -259,6 +261,7 @@ 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

endif

cmd_record_mcount = 						\

	if [ "$(findstring -pg,$(_c_flags))" = "-pg" ]; then	\
@@ -279,13 +282,13 @@ define rule_cc_o_c 
endef



# Built-in and composite module parts

$(obj)/%.o: $(src)/%.c FORCE

$(obj)/%.o: $(src)/%.c $(recordmcount_source) 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 FORCE

$(single-used-m): $(obj)/%.o: $(src)/%.c $(recordmcount_source) FORCE

	$(call cmd,force_checksrc)

	$(call if_changed_rule,cc_o_c)

	@{ echo $(@:.o=.ko); echo $@; } > $(MODVERDIR)/$(@F:.o=.mod)

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