diff options
| author | Josh Poimboeuf <jpoimboe@redhat.com> | 2022-04-18 19:50:36 +0300 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2022-04-22 13:32:03 +0300 |
| commit | 03f16cd020eb8bb2eb837e2090086f296a9fa91d (patch) | |
| tree | 7fea369cfc86508e8c7d3742c85e80ffe33478db /lib/Kconfig.kcsan | |
| parent | c2bdd61c98d915ad2cc1f8cd4661fcda1f1e4c16 (diff) | |
| download | linux-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.kcsan | 3 |
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. |