/* -*- 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 // snprintf # include // 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 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