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authorIngo Molnar <mingo@kernel.org>2019-11-19 19:54:39 +0100
committerIngo Molnar <mingo@kernel.org>2019-11-19 19:56:28 +0100
commit8e1d58ae0c8d4af9ab0141f7e8a9ca95720df01c (patch)
tree7b09138ee1aca2825f86f5534bfd2caad83190ec /tools
parentaf42d3466bdc8f39806b26f593604fdc54140bcb (diff)
parent40d04110f87940b6a03bf0aa19cd29e84f465f20 (diff)
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Merge branch 'for-mingo' of git://git.kernel.org/pub/scm/linux/kernel/git/paulmck/linux-rcu into locking/kcsan
Pull the KCSAN subsystem from Paul E. McKenney: "This pull request contains base kernel concurrency sanitizer (KCSAN) enablement for x86, courtesy of Marco Elver. KCSAN is a sampling watchpoint-based data-race detector, and is documented in Documentation/dev-tools/kcsan.rst. KCSAN was announced in September, and much feedback has since been incorporated: http://lkml.kernel.org/r/CANpmjNPJ_bHjfLZCAPV23AXFfiPiyXXqqu72n6TgWzb2Gnu1eA@mail.gmail.com The data races located thus far have resulted in a number of fixes: https://github.com/google/ktsan/wiki/KCSAN#upstream-fixes-of-data-races-found-by-kcsan Additional information may be found here: https://lore.kernel.org/lkml/20191114180303.66955-1-elver@google.com/ " Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'tools')
-rw-r--r--tools/objtool/check.c18
1 files changed, 18 insertions, 0 deletions
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 044c9a3cb247..e022a9a00ca1 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -466,6 +466,24 @@ static const char *uaccess_safe_builtin[] = {
"__asan_report_store4_noabort",
"__asan_report_store8_noabort",
"__asan_report_store16_noabort",
+ /* KCSAN */
+ "kcsan_found_watchpoint",
+ "kcsan_setup_watchpoint",
+ /* KCSAN/TSAN */
+ "__tsan_func_entry",
+ "__tsan_func_exit",
+ "__tsan_read_range",
+ "__tsan_write_range",
+ "__tsan_read1",
+ "__tsan_read2",
+ "__tsan_read4",
+ "__tsan_read8",
+ "__tsan_read16",
+ "__tsan_write1",
+ "__tsan_write2",
+ "__tsan_write4",
+ "__tsan_write8",
+ "__tsan_write16",
/* KCOV */
"write_comp_data",
"__sanitizer_cov_trace_pc",