[CompilerRT][Darwin] Silence the warnings for deprecated APIs (#102977)

Silence deprecated API warnings in compiler-rt on Darwin platforms.

Author: cachemeifyoucan

compiler-rt/lib/sanitizer_common/sanitizer_mac.cpp

@@ -788,7 +788,11 @@ void WriteOneLineToSyslog(const char *s) {
   if (GetMacosAlignedVersion() >= MacosVersion(10, 12)) {
     os_log_error(OS_LOG_DEFAULT, "%{public}s", s);
   } else {
+#pragma clang diagnostic push
+// as_log is deprecated.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
     asl_log(nullptr, nullptr, ASL_LEVEL_ERR, "%s", s);
+#pragma clang diagnostic pop
   }
 #endif
 }
@@ -843,6 +847,9 @@ void LogFullErrorReport(const char *buffer) {
 #if !SANITIZER_GO
   // Log with os_trace. This will make it into the crash log.
 #if SANITIZER_OS_TRACE
+#pragma clang diagnostic push
+// os_trace is deprecated.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
   if (GetMacosAlignedVersion() >= MacosVersion(10, 10)) {
     // os_trace requires the message (format parameter) to be a string literal.
     if (internal_strncmp(SanitizerToolName, "AddressSanitizer",
@@ -860,6 +867,7 @@ void LogFullErrorReport(const char *buffer) {
     if (common_flags()->log_to_syslog)
       os_trace("Consult syslog for more information.");
   }
+#pragma clang diagnostic pop
 #endif
 
   // Log to syslog.

compiler-rt/lib/tsan/rtl/tsan_interceptors_mac.cpp

@@ -94,6 +94,10 @@ static constexpr morder kMacFailureOrder = mo_relaxed;
   m_orig(int32_t, uint32_t, a32, f##32##OrigBarrier,                           \
     __tsan_atomic32_##tsan_atomic_f, kMacOrderBarrier)
 
+
+#pragma clang diagnostic push
+// OSAtomic* functions are deprecated.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 OSATOMIC_INTERCEPTORS_ARITHMETIC(OSAtomicAdd, fetch_add,
                                  OSATOMIC_INTERCEPTOR_PLUS_X)
 OSATOMIC_INTERCEPTORS_ARITHMETIC(OSAtomicIncrement, fetch_add,
@@ -123,6 +127,9 @@ OSATOMIC_INTERCEPTORS_BITWISE(OSAtomicXor, fetch_xor,
         kMacOrderBarrier, kMacFailureOrder);                                \
   }
 
+#pragma clang diagnostic push
+// OSAtomicCompareAndSwap* functions are deprecated.
+#pragma clang diagnostic ignored "-Wdeprecated-declarations"
 OSATOMIC_INTERCEPTORS_CAS(OSAtomicCompareAndSwapInt, __tsan_atomic32, a32, int)
 OSATOMIC_INTERCEPTORS_CAS(OSAtomicCompareAndSwapLong, __tsan_atomic64, a64,
                           long_t)
@@ -132,6 +139,7 @@ OSATOMIC_INTERCEPTORS_CAS(OSAtomicCompareAndSwap32, __tsan_atomic32, a32,
                           int32_t)
 OSATOMIC_INTERCEPTORS_CAS(OSAtomicCompareAndSwap64, __tsan_atomic64, a64,
                           int64_t)
+#pragma clang diagnostic pop
 
 #define OSATOMIC_INTERCEPTOR_BITOP(f, op, clear, mo)             \
   TSAN_INTERCEPTOR(bool, f, uint32_t n, volatile void *ptr) {    \