From a88ecf476d8d60253a0bd3da15bb2d51f6706e25 Mon Sep 17 00:00:00 2001
From: Megvii Engine Team <megengine@megvii.com>
Date: Mon, 9 Aug 2021 19:03:01 +0800
Subject: [PATCH] feat(debug): change megbrain do not catch SEGV signal by
 default change to enable SEGV catch when set MGB_REGISTER_SEGV_HANDLER env
 only take effect on Linux and MacOS

GitOrigin-RevId: ceb76ff953be27285faa04c3a43139ecdb632415
---
 src/core/impl/utils/debug.cpp | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/core/impl/utils/debug.cpp b/src/core/impl/utils/debug.cpp
index 088dca356..eb3a996d3 100644
--- a/src/core/impl/utils/debug.cpp
+++ b/src/core/impl/utils/debug.cpp
@@ -194,7 +194,14 @@ class InitCaller {
 
     InitCaller() {
 #ifndef WIN32
-        SigHandlerInit::init_for_segv();
+        if (MGB_GETENV("MGB_REGISTER_SEGV_HANDLER")) {
+            mgb_log_warn(
+                    "env config MGB_REGISTER_SEGV_HANDLER, which means "
+                    "megbrain will catch crash SEGV signal, if you do not want "
+                    "to megbrain do this, do unset MGB_REGISTER_SEGV_HANDLER "
+                    "and rerun");
+            SigHandlerInit::init_for_segv();
+        }
 #endif
 #if MGB_CUDA
         CudaCheckOnFork::init();
-- 
GitLab