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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-28 10:15:59 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-02-28 10:15:59 -0800 |
| commit | e72e58faa709d554f95431dbafd3374db5ed3fbb (patch) | |
| tree | f73ee22c1f93a5e56d1930a29f82aae4f39aa956 /Makefile | |
| parent | 74e3f63ce60eb81fbd39aa6c0353059b7e2cb5f7 (diff) | |
| parent | 4e4636cf981b5b629fbfb78aa9f232e015f7d521 (diff) | |
Merge branch 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fixes from Ingo Molnar:
"A handful of objtool fixes related to unreachable code, plus a build
fix for out of tree modules"
* 'core-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Enclose contents of unreachable() macro in a block
objtool: Prevent GCC from merging annotate_unreachable()
objtool: Improve detection of BUG() and other dead ends
objtool: Fix CONFIG_STACK_VALIDATION=y warning for out-of-tree modules
Diffstat (limited to 'Makefile')
| -rw-r--r-- | Makefile | 24 |
1 files changed, 12 insertions, 12 deletions
@@ -910,6 +910,18 @@ mod_sign_cmd = true endif export mod_sign_cmd +ifdef CONFIG_STACK_VALIDATION + has_libelf := $(call try-run,\ + echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf -,1,0) + ifeq ($(has_libelf),1) + objtool_target := tools/objtool FORCE + else + $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev, libelf-devel or elfutils-libelf-devel") + SKIP_STACK_VALIDATION := 1 + export SKIP_STACK_VALIDATION + endif +endif + ifeq ($(KBUILD_EXTMOD),) core-y += kernel/ certs/ mm/ fs/ ipc/ security/ crypto/ block/ @@ -1037,18 +1049,6 @@ prepare0: archprepare gcc-plugins # All the preparing.. prepare: prepare0 prepare-objtool -ifdef CONFIG_STACK_VALIDATION - has_libelf := $(call try-run,\ - echo "int main() {}" | $(HOSTCC) -xc -o /dev/null -lelf -,1,0) - ifeq ($(has_libelf),1) - objtool_target := tools/objtool FORCE - else - $(warning "Cannot use CONFIG_STACK_VALIDATION, please install libelf-dev, libelf-devel or elfutils-libelf-devel") - SKIP_STACK_VALIDATION := 1 - export SKIP_STACK_VALIDATION - endif -endif - PHONY += prepare-objtool prepare-objtool: $(objtool_target) |