[SanitizerCoverage][Fuchsia] Make TracePcGuardController linker-initialized
It was always intended to be.
Patch By: mcgrathr
@@ -49,7 +49,7 @@ constexpr const char kSancovSinkName[] = "sancov";
// Collects trace-pc guard coverage.
// This class relies on zero-initialization.
-class TracePcGuardController {
+class TracePcGuardController final {
public:
// For each PC location being tracked, there is a u32 reserved in global
// data called the "guard". At startup, we assign each guard slot a
@@ -113,11 +113,11 @@ class TracePcGuardController {
// We can always spare the 32G of address space.
static constexpr size_t MappingSize = sizeof(uptr) << 32;
- BlockingMutex setup_lock_;
- uptr *array_;
- u32 next_index_;
- zx_handle_t vmo_;
- char vmo_name_[ZX_MAX_NAME_LEN];
+ BlockingMutex setup_lock_{LINKER_INITIALIZED};
+ uptr *array_{};
+ u32 next_index_{};
+ zx_handle_t vmo_{};
+ char vmo_name_[ZX_MAX_NAME_LEN]{};
size_t DataSize() const { return next_index_ * sizeof(uintptr_t); }
