[libclang] Expose abort()-ing LLVM fatal error handler

Differential Revision: https://reviews.llvm.org/D66775

llvm-svn: 371787

1 files changed, 28 insertions, 0 deletions

diff --git a/clang/tools/libclang/FatalErrorHandler.cpp b/clang/tools/libclang/FatalErrorHandler.cpp
new file mode 100644
index 00000000000..e9a0d41bab3
--- /dev/null
+++ b/clang/tools/libclang/FatalErrorHandler.cpp
@@ -0,0 +1,28 @@
+/*===-- clang-c/FatalErrorHandler.cpp - Fatal Error Handling ------*- C -*-===*\
+|*                                                                            *|
+|* Part of the LLVM Project, under the Apache License v2.0 with LLVM          *|
+|* Exceptions.                                                                *|
+|* See https://llvm.org/LICENSE.txt for license information.                  *|
+|* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception                    *|
+|*                                                                            *|
+\*===----------------------------------------------------------------------===*/
+
+#include "clang-c/FatalErrorHandler.h"
+#include "llvm/Support/ErrorHandling.h"
+
+static void aborting_fatal_error_handler(void *, const std::string &reason,
+                                         bool) {
+  // Write the result out to stderr avoiding errs() because raw_ostreams can
+  // call report_fatal_error.
+  fprintf(stderr, "LIBCLANG FATAL ERROR: %s\n", reason.c_str());
+  ::abort();
+}
+
+void clang_install_aborting_llvm_fatal_error_handler() {
+  llvm::remove_fatal_error_handler();
+  llvm::install_fatal_error_handler(aborting_fatal_error_handler, nullptr);
+}
+
+void clang_uninstall_llvm_fatal_error_handler() {
+  llvm::remove_fatal_error_handler();
+}