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authorJosh Poimboeuf <jpoimboe@redhat.com>2022-04-18 09:50:36 -0700
committerPeter Zijlstra <peterz@infradead.org>2022-04-22 12:32:03 +0200
commit03f16cd020eb8bb2eb837e2090086f296a9fa91d (patch)
tree7fea369cfc86508e8c7d3742c85e80ffe33478db /lib/Kconfig.ubsan
parentc2bdd61c98d915ad2cc1f8cd4661fcda1f1e4c16 (diff)
objtool: Add CONFIG_OBJTOOL
Now that stack validation is an optional feature of objtool, add CONFIG_OBJTOOL and replace most usages of CONFIG_STACK_VALIDATION with it. CONFIG_STACK_VALIDATION can now be considered to be frame-pointer specific. CONFIG_UNWINDER_ORC is already inherently valid for live patching, so no need to "validate" it. Signed-off-by: Josh Poimboeuf <jpoimboe@redhat.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Miroslav Benes <mbenes@suse.cz> Link: https://lkml.kernel.org/r/939bf3d85604b2a126412bf11af6e3bd3b872bcb.1650300597.git.jpoimboe@redhat.com
Diffstat (limited to 'lib/Kconfig.ubsan')
-rw-r--r--lib/Kconfig.ubsan2
1 files changed, 1 insertions, 1 deletions
diff --git a/lib/Kconfig.ubsan b/lib/Kconfig.ubsan
index f3c57ed51838..c4fe15d38b60 100644
--- a/lib/Kconfig.ubsan
+++ b/lib/Kconfig.ubsan
@@ -94,7 +94,7 @@ config UBSAN_UNREACHABLE
bool "Perform checking for unreachable code"
# objtool already handles unreachable checking and gets angry about
# seeing UBSan instrumentation located in unreachable places.
- depends on !STACK_VALIDATION
+ depends on !(OBJTOOL && (STACK_VALIDATION || UNWINDER_ORC || X86_SMAP))
depends on $(cc-option,-fsanitize=unreachable)
help
This option enables -fsanitize=unreachable which checks for control