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authorJosh Poimboeuf <jpoimboe@redhat.com>2016-02-29 07:22:42 +0300
committerIngo Molnar <mingo@kernel.org>2016-02-29 10:35:13 +0300
commitb9ab5ebb14ec389bd80f66613f1fe3f8f65f2521 (patch)
treee7c31bac2c2bec5e8b3b2192b4f116c0204eb015 /Makefile
parent442f04c34a1a467759d024a1d2c1df0f744dcb06 (diff)
downloadlinux-b9ab5ebb14ec389bd80f66613f1fe3f8f65f2521.tar.xz
objtool: Add CONFIG_STACK_VALIDATION option
Add a CONFIG_STACK_VALIDATION option which will run "objtool check" for each .o file to ensure the validity of its stack metadata. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@kernel.org> Cc: Bernd Petrovitsch <bernd@petrovitsch.priv.at> Cc: Borislav Petkov <bp@alien8.de> Cc: Chris J Arges <chris.j.arges@canonical.com> Cc: Jiri Slaby <jslaby@suse.cz> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Marek <mmarek@suse.cz> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Pedro Alves <palves@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: live-patching@vger.kernel.org Link: http://lkml.kernel.org/r/92baab69a6bf9bc7043af0bfca9fb964a1d45546.1456719558.git.jpoimboe@redhat.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'Makefile')
-rw-r--r--Makefile5
1 files changed, 4 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index fbe1b921798f..62be03b2add4 100644
--- a/Makefile
+++ b/Makefile
@@ -993,7 +993,10 @@ prepare0: archprepare FORCE
$(Q)$(MAKE) $(build)=.
# All the preparing..
-prepare: prepare0
+prepare: prepare0 prepare-objtool
+
+PHONY += prepare-objtool
+prepare-objtool: $(if $(CONFIG_STACK_VALIDATION), tools/objtool FORCE)
# Generate some files
# ---------------------------------------------------------------------------