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* [tip: locking/core] objtool: whitelist __sanitizer_cov_trace_switch()
@ 2020-03-28 11:06 tip-bot2 for Al Viro
  0 siblings, 0 replies; only message in thread
From: tip-bot2 for Al Viro @ 2020-03-28 11:06 UTC (permalink / raw)
  To: linux-tip-commits; +Cc: Al Viro, x86, LKML

The following commit has been merged into the locking/core branch of tip:

Commit-ID:     36b1c7006736517f5a9d86eb6f8d5930a2aa64bf
Gitweb:        https://git.kernel.org/tip/36b1c7006736517f5a9d86eb6f8d5930a2aa64bf
Author:        Al Viro <viro@zeniv.linux.org.uk>
AuthorDate:    Sun, 16 Feb 2020 13:07:49 -05:00
Committer:     Al Viro <viro@zeniv.linux.org.uk>
CommitterDate: Fri, 27 Mar 2020 23:58:53 -04:00

objtool: whitelist __sanitizer_cov_trace_switch()

it's not really different from e.g. __sanitizer_cov_trace_cmp4();
as it is, the switches that generate an array of labels get
rejected by objtool, while slightly different set of cases
that gets compiled into a series of comparisons is accepted.

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
 tools/objtool/check.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 4768d91..3667c5d 100644
--- a/tools/objtool/check.c
+++ b/tools/objtool/check.c
@@ -478,6 +478,7 @@ static const char *uaccess_safe_builtin[] = {
 	"__sanitizer_cov_trace_cmp2",
 	"__sanitizer_cov_trace_cmp4",
 	"__sanitizer_cov_trace_cmp8",
+	"__sanitizer_cov_trace_switch",
 	/* UBSAN */
 	"ubsan_type_mismatch_common",
 	"__ubsan_handle_type_mismatch",

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