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authorJosh Poimboeuf <jpoimboe@redhat.com>2022-04-18 19:50:36 +0300
committerPeter Zijlstra <peterz@infradead.org>2022-04-22 13:32:03 +0300
commit03f16cd020eb8bb2eb837e2090086f296a9fa91d (patch)
tree7fea369cfc86508e8c7d3742c85e80ffe33478db /lib/Kconfig.kcsan
parentc2bdd61c98d915ad2cc1f8cd4661fcda1f1e4c16 (diff)
downloadlinux-03f16cd020eb8bb2eb837e2090086f296a9fa91d.tar.xz
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.kcsan')
-rw-r--r--lib/Kconfig.kcsan3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Kconfig.kcsan b/lib/Kconfig.kcsan
index de022445fbba..901c3b509aca 100644
--- a/lib/Kconfig.kcsan
+++ b/lib/Kconfig.kcsan
@@ -187,7 +187,8 @@ config KCSAN_WEAK_MEMORY
# We can either let objtool nop __tsan_func_{entry,exit}() and builtin
# atomics instrumentation in .noinstr.text, or use a compiler that can
# implement __no_kcsan to really remove all instrumentation.
- depends on STACK_VALIDATION || CC_IS_GCC || CLANG_VERSION >= 140000
+ depends on HAVE_OBJTOOL || CC_IS_GCC || CLANG_VERSION >= 140000
+ select OBJTOOL if HAVE_OBJTOOL
help
Enable support for modeling a subset of weak memory, which allows
detecting a subset of data races due to missing memory barriers.