[libcxxabi] Disable calls to fprintf for baremetal targets.

We've been having issues with using libcxxabi and libunwind for baremetal targets because fprintf is dependent on io functions, this patch disables calls to fprintf when building for baremetal in release mode. Differential Revision: https://reviews.llvm.org/D30339 llvm-svn: 296136
llvm · Feb 24, 2017 · 4987856 · 4987856
1 parent 744dabc
commit 4987856
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/libcxxabi/src/abort_message.cpp b/libcxxabi/src/abort_message.cpp
@@ -35,6 +35,7 @@ __attribute__((visibility("hidden"), noreturn))
 void abort_message(const char* format, ...)
 {
     // write message to stderr
+#if !defined(NDEBUG) && !defined(LIBCXXABI_BAREMETAL)
 #ifdef __APPLE__
     fprintf(stderr, "libc++abi.dylib: ");
 #endif
@@ -43,6 +44,7 @@ void abort_message(const char* format, ...)
     vfprintf(stderr, format, list);
     va_end(list);
     fprintf(stderr, "\n");
+#endif
 
 #if defined(__APPLE__) && defined(HAVE_CRASHREPORTERCLIENT_H)
     // record message in crash report