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025602a787
As of libc++ 14, the functions are defined in the std namespace rather than std::<something>, which makes them conflict with our wrapping. This is not a problem on libstdc++ because the functions are defined in the library itself rather than the headers. This was the real reason behind the addition of #ifndef __wasm__ ; this is a more generic fix for the same problem. Differential Revision: https://phabricator.services.mozilla.com/D177841
153 lines
4.4 KiB
C++
153 lines
4.4 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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* vim: sw=2 ts=4 et :
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*/
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef mozilla_throw_gcc_h
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#define mozilla_throw_gcc_h
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#if !defined(_LIBCPP_VERSION) || _LIBCPP_VERSION < 14000
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# include "mozilla/Attributes.h"
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# include <stdio.h> // snprintf
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# include <string.h> // strerror
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// For gcc, we define these inline to abort so that we're absolutely
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// certain that (i) no exceptions are thrown from Gecko; (ii) these
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// errors are always terminal and caught by breakpad.
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# include "mozilla/mozalloc_abort.h"
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// libc++ 4.0.0 and higher use C++11 [[noreturn]] attributes for the functions
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// below, and since clang does not allow mixing __attribute__((noreturn)) and
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// [[noreturn]], we have to explicitly use the latter here. See bug 1329520.
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# if defined(__clang__)
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# if __has_feature(cxx_attributes) && defined(_LIBCPP_VERSION) && \
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_LIBCPP_VERSION >= 4000
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# define MOZ_THROW_NORETURN [[noreturn]]
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# endif
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# endif
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# ifndef MOZ_THROW_NORETURN
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# define MOZ_THROW_NORETURN MOZ_NORETURN
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# endif
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// MinGW doesn't appropriately inline these functions in debug builds,
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// so we need to do some extra coercion for it to do so. Bug 1332747
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# ifdef __MINGW32__
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# define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE_EVEN_DEBUG
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# define MOZ_THROW_EXPORT
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# else
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# define MOZ_THROW_INLINE MOZ_ALWAYS_INLINE
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# define MOZ_THROW_EXPORT MOZ_EXPORT
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# endif
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namespace std {
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// NB: user code is not supposed to touch the std:: namespace. We're
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// doing this after careful review because we want to define our own
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// exception throwing semantics. Don't try this at home!
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_exception(
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void) {
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mozalloc_abort("fatal: STL threw bad_exception");
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_alloc(
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void) {
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mozalloc_abort("fatal: STL threw bad_alloc");
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_cast(
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void) {
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mozalloc_abort("fatal: STL threw bad_cast");
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_bad_typeid(
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void) {
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mozalloc_abort("fatal: STL threw bad_typeid");
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}
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// used by <functional>
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
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__throw_bad_function_call(void) {
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mozalloc_abort("fatal: STL threw bad_function_call");
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_logic_error(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_domain_error(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
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__throw_invalid_argument(const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_length_error(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_out_of_range(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_runtime_error(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_range_error(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
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__throw_overflow_error(const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void
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__throw_underflow_error(const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_ios_failure(
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const char* msg) {
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mozalloc_abort(msg);
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}
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MOZ_THROW_NORETURN MOZ_THROW_EXPORT MOZ_THROW_INLINE void __throw_system_error(
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int err) {
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char error[128];
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snprintf(error, sizeof(error) - 1, "fatal: STL threw system_error: %s (%d)",
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strerror(err), err);
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mozalloc_abort(error);
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}
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MOZ_THROW_NORETURN MOZ_EXPORT MOZ_ALWAYS_INLINE void __throw_regex_error(
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int err) {
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char error[128];
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snprintf(error, sizeof(error) - 1, "fatal: STL threw regex_error: %s (%d)",
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strerror(err), err);
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mozalloc_abort(error);
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}
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} // namespace std
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# undef MOZ_THROW_NORETURN
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# undef MOZ_THROW_INLINE
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#endif
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#endif // mozilla_throw_gcc_h
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