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| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2022-04-18 09:50:36 -0700 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-04-22 12:32:03 +0200 |
| commit | 03f16cd020eb8bb2eb837e2090086f296a9fa91d (patch) | |
| tree | 7fea369cfc86508e8c7d3742c85e80ffe33478db /lib/Kconfig.ubsan | |
| parent | c2bdd61c98d915ad2cc1f8cd4661fcda1f1e4c16 (diff) | |
| download | lwn-03f16cd020eb8bb2eb837e2090086f296a9fa91d.tar.gz lwn-03f16cd020eb8bb2eb837e2090086f296a9fa91d.zip | |
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.ubsan | 2 |
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 |