[compiler-rt] 56ee6a1 - [compiler-rt][nsan] Disable coredump creation (#98807)

[via llvm-commits]

Author: Dmitriy Chestnykh
Date: 2024-07-15T11:15:37-07:00
New Revision: 56ee6a172a8c17944c3b776159b45e15b31444ef

URL: https://github.com/llvm/llvm-project/commit/56ee6a172a8c17944c3b776159b45e15b31444ef
DIFF: https://github.com/llvm/llvm-project/commit/56ee6a172a8c17944c3b776159b45e15b31444ef.diff

LOG: [compiler-rt][nsan] Disable coredump creation (#98807)

Disable core dump creation. 
If NSAN_OPTIONS includes abort_on_error=1, 
the process may hang as the kernel attempts
to create an excessively large core file.



Fix #98806

Added: 
    

Modified: 
    compiler-rt/lib/nsan/nsan.cpp

Removed: 
    


################################################################################
diff  --git a/compiler-rt/lib/nsan/nsan.cpp b/compiler-rt/lib/nsan/nsan.cpp
index e5a9b7a036e0e..194093c9679d0 100644
--- a/compiler-rt/lib/nsan/nsan.cpp
+++ b/compiler-rt/lib/nsan/nsan.cpp
@@ -537,7 +537,10 @@ int32_t checkFT(const FT value, ShadowFT Shadow, CheckTypeT CheckType,
   }
 
   if (flags().halt_on_error) {
-    Printf("Exiting\n");
+    if (common_flags()->abort_on_error)
+      Printf("ABORTING\n");
+    else
+      Printf("Exiting\n");
     Die();
   }
   return flags().resume_after_warning ? kResumeFromValue : kContinueWithShadow;
@@ -791,6 +794,8 @@ extern "C" SANITIZER_INTERFACE_ATTRIBUTE void __nsan_init() {
   InitializeSuppressions();
   InitializePlatformEarly();
 
+  DisableCoreDumperIfNecessary();
+
   if (!MmapFixedNoReserve(TypesAddr(), UnusedAddr() - TypesAddr()))
     Die();