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authorLinus Torvalds <torvalds@linux-foundation.org>2017-02-28 10:15:59 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-02-28 10:15:59 -0800
commite72e58faa709d554f95431dbafd3374db5ed3fbb (patch)
treef73ee22c1f93a5e56d1930a29f82aae4f39aa956 /Makefile
parent74e3f63ce60eb81fbd39aa6c0353059b7e2cb5f7 (diff)
parent4e4636cf981b5b629fbfb78aa9f232e015f7d521 (diff)
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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--Makefile24
1 files changed, 12 insertions, 12 deletions
diff --git a/Makefile b/Makefile
index b83109b5d217..4cb6b0a1152b 100644
--- a/Makefile
+++ b/Makefile
@@ -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)