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objtool: whitelist __sanitizer_cov_trace_switch()

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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>
This commit is contained in:
Al Viro 2020-02-16 13:07:49 -05:00
parent dc88588990
commit 36b1c70067
1 changed files with 1 additions and 0 deletions
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tools/objtool/check.c
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@ -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",