build: improve -fsanitize-coverage-allowlist check

The sancov filter check still fails when unused arguments are treated as
errors. To work around that, add a SanitizerCoverage flag to the
build-check.

Fixes: aa4f3a3b88 ("build: fix check for -fsanitize-coverage-allowlist")
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Message-Id: <20220621204507.698711-1-alxndr@bu.edu>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Alexander Bulekov 2022-06-21 16:45:07 -04:00 committed by Paolo Bonzini
parent 92e288fcfb
commit e56d097028

View file

@ -212,7 +212,8 @@ if get_option('fuzzing')
if cc.compiles('int main () { return 0; }',
name: '-fsanitize-coverage-allowlist=/dev/null',
args: ['-fsanitize-coverage-allowlist=/dev/null'] )
args: ['-fsanitize-coverage-allowlist=/dev/null',
'-fsanitize-coverage=trace-pc'] )
add_global_arguments('-fsanitize-coverage-allowlist=instrumentation-filter',
native: false, language: ['c', 'cpp', 'objc'])
endif