[PATCH] D124607: Add an error message to the default SIGPIPE handler

[Damian Malarczyk via Phabricator via llvm-commits]

dmcyk updated this revision to Diff 425816.
dmcyk added a comment.

- rebase main


Repository:
  rG LLVM Github Monorepo

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D124607/new/

https://reviews.llvm.org/D124607

Files:
  llvm/lib/Support/Unix/Signals.inc


Index: llvm/lib/Support/Unix/Signals.inc
===================================================================
--- llvm/lib/Support/Unix/Signals.inc
+++ llvm/lib/Support/Unix/Signals.inc
@@ -432,6 +432,10 @@
 }
 
 void llvm::sys::DefaultOneShotPipeSignalHandler() {
+  // UNIX03 conformance requires a non-zero exit code and an error message
+  // to stderr when writing to a closed stdout fails.
+  errs() << "error: write on a pipe with no reader\n";
+
   // Send a special return code that drivers can check for, from sysexits.h.
   exit(EX_IOERR);
 }


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