diff options
Diffstat (limited to 'src/cmd')
| -rw-r--r-- | src/cmd/cgo/internal/testsanitizers/testdata/msan8.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/cmd/cgo/internal/testsanitizers/testdata/msan8.go b/src/cmd/cgo/internal/testsanitizers/testdata/msan8.go index 1cb5c5677f..484028a2ad 100644 --- a/src/cmd/cgo/internal/testsanitizers/testdata/msan8.go +++ b/src/cmd/cgo/internal/testsanitizers/testdata/msan8.go @@ -26,12 +26,22 @@ void msanGoTraceback(void* parg) { arg->buf[0] = 0; } +// Don't warn if the compiler doesn't support the maybe_undef attribute. +#pragma GCC diagnostic ignored "-Wattributes" + // msanGoWait will be called with all registers undefined as far as // msan is concerned. It just waits for a signal. // Because the registers are msan-undefined, the signal handler will // be invoked with all registers msan-undefined. +// The maybe_undef attribute tells clang to not complain about +// passing uninitialized values. __attribute__((noinline)) -void msanGoWait(unsigned long a1, unsigned long a2, unsigned long a3, unsigned long a4, unsigned long a5, unsigned long a6) { +void msanGoWait(unsigned long a1 __attribute__((maybe_undef)), + unsigned long a2 __attribute__((maybe_undef)), + unsigned long a3 __attribute__((maybe_undef)), + unsigned long a4 __attribute__((maybe_undef)), + unsigned long a5 __attribute__((maybe_undef)), + unsigned long a6 __attribute__((maybe_undef))) { sigset_t mask; sigemptyset(&mask); |