[compiler-rt] [sanitizer] Skip /include/c++/ from summary (PR #78534)

[via llvm-commits]

llvmbot wrote:


<!--LLVM PR SUMMARY COMMENT-->

@llvm/pr-subscribers-compiler-rt-sanitizer

Author: Vitaly Buka (vitalybuka)

<details>
<summary>Changes</summary>

std:: usually is not a cause of the bug.


---
Full diff: https://github.com/llvm/llvm-project/pull/78534.diff


2 Files Affected:

- (modified) compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp (+2-1) 
- (modified) compiler-rt/test/sanitizer_common/TestCases/allocator_returns_null.cpp (+17-2) 


``````````diff
diff --git a/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp b/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
index 253dc10607a6eb..8438e019591b58 100644
--- a/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
+++ b/compiler-rt/lib/sanitizer_common/sanitizer_symbolizer_report.cpp
@@ -34,7 +34,8 @@ static bool FrameIsInternal(const SymbolizedStack *frame) {
     return true;
   const char *file = frame->info.file;
   const char *module = frame->info.module;
-  if (file && (internal_strstr(file, "/compiler-rt/lib/")))
+  if (file && (internal_strstr(file, "/compiler-rt/lib/") ||
+               internal_strstr(file, "/include/c++/")))
     return true;
   if (module && (internal_strstr(module, "libclang_rt.")))
     return true;
diff --git a/compiler-rt/test/sanitizer_common/TestCases/allocator_returns_null.cpp b/compiler-rt/test/sanitizer_common/TestCases/allocator_returns_null.cpp
index ca6f637b9a3f50..1e4b0ed520b8a4 100644
--- a/compiler-rt/test/sanitizer_common/TestCases/allocator_returns_null.cpp
+++ b/compiler-rt/test/sanitizer_common/TestCases/allocator_returns_null.cpp
@@ -34,17 +34,20 @@
 // RUN:   | FileCheck %s --check-prefix=CHECK-nnCRASH
 // RUN: %env_tool_opts=allocator_may_return_null=1     %run %t new-nothrow 2>&1 \
 // RUN:   | FileCheck %s --check-prefix=CHECK-NULL
+// RUN: %env_tool_opts=allocator_may_return_null=0 not %run %t vector 2>&1 \
+// RUN:   | FileCheck %s --check-prefix=CHECK-vCRASH
 
 // TODO(alekseyshl): win32 is disabled due to failing errno tests, fix it there.
 // UNSUPPORTED: ubsan, target={{.*windows-msvc.*}}
 
 #include <assert.h>
 #include <errno.h>
+#include <limits>
+#include <new>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
-#include <limits>
-#include <new>
+#include <vector>
 
 int main(int argc, char **argv) {
   assert(argc == 2);
@@ -60,6 +63,8 @@ int main(int argc, char **argv) {
       (3UL << 30) + 1;
 #endif
 
+  std::vector<char> v;
+
   void *x = nullptr;
   if (!strcmp(action, "malloc")) {
     x = malloc(kMaxAllowedMallocSizePlusOne);
@@ -82,6 +87,14 @@ int main(int argc, char **argv) {
     x = operator new(kMaxAllowedMallocSizePlusOne);
   } else if (!strcmp(action, "new-nothrow")) {
     x = operator new(kMaxAllowedMallocSizePlusOne, std::nothrow);
+  } else if (!strcmp(action, "vector")) {
+#if __LP64__ || defined(_WIN64)
+    v.resize(kMaxAllowedMallocSizePlusOne);
+    x = v.data();
+#else
+    // Fake it: 32bit fails early in std.
+    x = malloc(kMaxAllowedMallocSizePlusOne);
+#endif
   } else {
     assert(0);
   }
@@ -117,6 +130,8 @@ int main(int argc, char **argv) {
 // CHECK-nnCRASH: new-nothrow:
 // CHECK-nnCRASH: #{{[0-9]+.*}}allocator_returns_null.cpp
 // CHECK-nnCRASH: {{SUMMARY: .*Sanitizer: allocation-size-too-big.*allocator_returns_null.cpp.*}} in main
+// CHECK-vCRASH: #{{[0-9]+.*}}allocator_returns_null.cpp
+// CHECK-vCRASH: {{SUMMARY: .*Sanitizer: allocation-size-too-big.*allocator_returns_null.cpp.*}} in main
 
 // CHECK-NULL: {{malloc|calloc|calloc-overflow|realloc|realloc-after-malloc|new-nothrow}}
 // CHECK-NULL: errno: 12, x: 0

``````````

</details>


https://github.com/llvm/llvm-project/pull/78534