support asan in 3.1_opensource_release

deps/oblib/src/lib/allocator/ob_tc_malloc.cpp

@@ -174,7 +174,9 @@ void __attribute__((constructor(MALLOC_INIT_PRIORITY))) init_global_memory_pool(
     return OB_SUCCESS;
   };
   global_default_allocator = ObMallocAllocator::get_instance();
+#ifndef OB_USE_ASAN
   abort_unless(OB_SUCCESS == install_ob_signal_handler());
+#endif
 }
 
 void __attribute__((destructor(MALLOC_INIT_PRIORITY))) deinit_global_memory_pool()

src/observer/ob_server.cpp

@@ -234,8 +234,10 @@ int ObServer::init(const ObServerOptions& opts, const ObPLogWriterCfg& log_cfg)
     LOG_ERROR("should never reach here!", K(ret));
   } else if (OB_FAIL(init_restore_ctx())) {
     LOG_ERROR("init restore context fail", K(ret));
+#ifndef OB_USE_ASAN
   } else if (OB_FAIL(ObMemoryDump::get_instance().init())) {
     LOG_ERROR("init memory dumper fail", K(ret));
+#endif
   } else if (OB_FAIL(ObDagScheduler::get_instance().init(OBSERVER.get_self()))) {
     LOG_ERROR("init scheduler fail, ", K(ret));
   } else if (OB_FAIL(init_global_kvcache())) {

src/observer/ob_signal_handle.cpp

@@ -221,8 +221,10 @@ int ObSignalHandle::deal_signals(int signum)
       break;
     }
     case 60: {
+#ifndef OB_USE_ASAN
       send_request_and_wait(VERB_LEVEL_1, syscall(SYS_gettid) /*exclude_id*/);
       break;
+#endif
     }
     case 62: {
       // RESP_DUMP_TRACE_TO_FILE();

src/storage/blocksstable/ob_data_buffer.cpp

@@ -97,17 +97,21 @@ int ObSelfBufferWriter::ensure_space(int64_t size)
 void ObSelfBufferWriter::free()
 {
   if (NULL != data_) {
+#ifndef OB_USE_ASAN
     if (macro_block_mem_ctx_.get_allocator().contains(data_)) {
       macro_block_mem_ctx_.free(data_);
-    } else {
+      data_ = NULL;
+    }
+#endif
+    if (NULL != data_) {
       if (is_aligned_) {
         ob_free_align(data_);
       } else {
         ob_free(data_);
       }
-    }
-  }
       data_ = NULL;
     }
+  }
+}
 }  // namespace blocksstable
 }  // namespace oceanbase