1 files changed, 152 insertions, 0 deletions
diff --git a/memory/mozalloc/throw_gcc.h b/memory/mozalloc/throw_gcc.h
new file mode 100644
index 0000000000..6a452ca5fc
--- /dev/null
+++ b/memory/mozalloc/throw_gcc.h
@@ -0,0 +1,152 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
+ * vim: sw=2 ts=4 et :
+ */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_throw_gcc_h
+#define mozilla_throw_gcc_h
+
+#if !defined(_LIBCPP_VERSION) || _LIBCPP_VERSION < 14000
+
+#  include "mozilla/Attributes.h"
+
+#  include <stdio.h>   // snprintf
+#  include <string.h>  // strerror
+
+// For gcc, we define these inline to abort so that we're absolutely
+// certain that (i) no exceptions are thrown from Gecko; (ii) these
+// errors are always terminal and caught by breakpad.
+
+#  include "mozilla/mozalloc_abort.h"
+
+// libc++ 4.0.0 and higher use C++11 [[noreturn]] attributes for the functions
+// below, and since clang does not allow mixing __attribute__((noreturn)) and
+// [[noreturn]], we have to explicitly use the latter here.  See bug 1329520.
+#  if defined(__clang__)
+#    if __has_feature(cxx_attributes) && defined(_LIBCPP_VERSION) && \
+        _LIBCPP_VERSION >= 4000
+#      define MOZ_THROW_NORETURN [[noreturn]]
+#    endif
+#  endif
+#  ifndef MOZ_THROW_NORETURN
+#    define MOZ_THROW_NORETURN MOZ_NORETURN
+#  endif
+
+// MinGW doesn't appropriately inline these functions in debug builds,
+// so we need to do some extra coercion for it to do so. Bug 1332747
+#  ifdef __MINGW32__
+#    define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE_EVEN_DEBUG
+#    define MOZ_THROW_EXPORT
+#  else
+#    define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE
+#    define MOZ_THROW_EXPORT MOZ_EXPORT
+#  endif
+
+namespace std {
+
+// NB: user code is not supposed to touch the std:: namespace.  We're
+// doing this after careful review because we want to define our own
+// exception throwing semantics.  Don't try this at home!
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_exception(
+    void) {
+  mozalloc_abort("fatal: STL threw bad_exception");
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_alloc(
+    void) {
+  mozalloc_abort("fatal: STL threw bad_alloc");
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_cast(
+    void) {
+  mozalloc_abort("fatal: STL threw bad_cast");
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_typeid(
+    void) {
+  mozalloc_abort("fatal: STL threw bad_typeid");
+}
+
+// used by <functional>
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
+__throw_bad_function_call(void) {
+  mozalloc_abort("fatal: STL threw bad_function_call");
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_logic_error(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_domain_error(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
+__throw_invalid_argument(const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_length_error(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_out_of_range(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_runtime_error(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_range_error(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
+__throw_overflow_error(const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
+__throw_underflow_error(const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_ios_failure(
+    const char* msg) {
+  mozalloc_abort(msg);
+}
+
+MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_system_error(
+    int err) {
+  char error[128];
+  snprintf(error, sizeof(error) - 1, "fatal: STL threw system_error: %s (%d)",
+           strerror(err), err);
+  mozalloc_abort(error);
+}
+
+MOZ_THROW_NORETURN MOZ_EXPORT MOZ_ALWAYS_INLINE void __throw_regex_error(
+    int err) {
+  char error[128];
+  snprintf(error, sizeof(error) - 1, "fatal: STL threw regex_error: %s (%d)",
+           strerror(err), err);
+  mozalloc_abort(error);
+}
+
+}  // namespace std
+
+#  undef MOZ_THROW_NORETURN
+#  undef MOZ_THROW_INLINE
+
+#endif
+
+#endif  // mozilla_throw_gcc_h