objtool: Query pkg-config for libelf location

If it is not in the default location, compilation fails at several points.

Signed-off-by: Rolf Eike Beer <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lkml.kernel.org/r/91a25e992566a7968fedc89ec80e7f4c83ad0548.1553622500.git.jpoimboe@redhat.com
This commit is contained in:
Rolf Eike Beer 2019-03-26 12:48:39 -05:00 • committed by Thomas Gleixner
commit 056d28d135
2 changed files with 8 additions and 3 deletions

View file

@ -950,9 +950,11 @@ mod_sign_cmd = true
endif
export mod_sign_cmd
HOST_LIBELF_LIBS = $(shell pkg-config libelf --libs 2>/dev/null || echo -lelf)
ifdef CONFIG_STACK_VALIDATION
has_libelf := $(call try-run,\
echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf -,1,0)
echo "int main() {}" | $(HOSTCC) -xc -o /dev/null $(HOST_LIBELF_LIBS) -,1,0)
ifeq ($(has_libelf),1)
objtool_target := tools/objtool FORCE
else