[PATCH] D97579: [compiler-rt] Silence warnings about large stack frames in ReadBinaryName

Martin Storsjö via Phabricator via llvm-commits llvm-commits at lists.llvm.org
Fri Feb 26 14:34:32 PST 2021


mstorsjo created this revision.
mstorsjo added reviewers: akhuang, rnk.
Herald added a subscriber: dberris.
mstorsjo requested review of this revision.
Herald added a project: Sanitizers.
Herald added a subscriber: Sanitizers.

The disabling of the warning also needs to cover ReadLongProcessName, which ends up inlining the function and producing a separate warning about stack size.

Other cases of the same were silenced similarly in D91853 <https://reviews.llvm.org/D91853>.


Repository:
  rG LLVM Github Monorepo

https://reviews.llvm.org/D97579

Files:
  compiler-rt/lib/sanitizer_common/sanitizer_win.cpp


Index: compiler-rt/lib/sanitizer_common/sanitizer_win.cpp
===================================================================
--- compiler-rt/lib/sanitizer_common/sanitizer_win.cpp
+++ compiler-rt/lib/sanitizer_common/sanitizer_win.cpp
@@ -1059,6 +1059,10 @@
   return "unknown exception";
 }
 
+#ifdef __clang__
+#pragma clang diagnostic push
+#pragma clang diagnostic ignored "-Wframe-larger-than="
+#endif
 uptr ReadBinaryName(/*out*/char *buf, uptr buf_len) {
   if (buf_len == 0)
     return 0;
@@ -1082,6 +1086,9 @@
 uptr ReadLongProcessName(/*out*/char *buf, uptr buf_len) {
   return ReadBinaryName(buf, buf_len);
 }
+#ifdef __clang__
+#pragma clang diagnostic pop
+#endif
 
 void CheckVMASize() {
   // Do nothing.


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