diff options
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 13 |
1 files changed, 12 insertions, 1 deletions
@@ -995,8 +995,19 @@ prepare0: archprepare FORCE # All the preparing.. prepare: prepare0 prepare-objtool +ifdef CONFIG_STACK_VALIDATION + has_libelf := $(shell echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf - &> /dev/null && echo 1 || echo 0) + ifeq ($(has_libelf),1) + objtool_target := tools/objtool FORCE + else + $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev or elfutils-libelf-devel") + SKIP_STACK_VALIDATION := 1 + export SKIP_STACK_VALIDATION + endif +endif + PHONY += prepare-objtool -prepare-objtool: $(if $(CONFIG_STACK_VALIDATION), tools/objtool FORCE) +prepare-objtool: $(objtool_target) # Generate some files # --------------------------------------------------------------------------- |