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Release Cosmopolitan v3.6.0

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This release is an atomic upgrade to GCC 14.1.0 with C23 and C++23
This commit is contained in:
Justine Tunney 2024-07-23 03:16:17 -07:00
parent 62ace3623a
commit 5660ec4741
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GPG key ID: BE714B4575D6E328
1585 changed files with 117353 additions and 271644 deletions
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62
third_party/libcxxabi/cxa_exception.cc vendored
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@ -11,13 +11,14 @@
//===----------------------------------------------------------------------===//
#include "third_party/libcxxabi/include/cxxabi.h"
#include "third_party/libcxx/__thread/support.h"
#include "third_party/libcxx/exception" // for std::terminate
#include "libc/isystem/string.h" // for memset
#include "third_party/libcxxabi/cxa_exception.h"
#include "third_party/libcxxabi/cxa_handlers.h"
#include "third_party/libcxxabi/fallback_malloc.h"
#include "third_party/libcxx/src/include/atomic_support.h" // from libc++
#include <exception> // for std::terminate
#include <string.h> // for memset
#include "cxa_exception.h"
#include "cxa_handlers.h"
#include "fallback_malloc.h"
#include "third_party/libcxx/atomic_support.h" // from libc++
#if __has_feature(address_sanitizer)
#include <sanitizer/asan_interface.h>
@ -206,6 +207,24 @@ void __cxa_free_exception(void *thrown_object) throw() {
__aligned_free_with_fallback((void *)raw_buffer);
}
__cxa_exception* __cxa_init_primary_exception(void* object, std::type_info* tinfo,
#ifdef __wasm__
// In Wasm, a destructor returns its argument
void *(_LIBCXXABI_DTOR_FUNC* dest)(void*)) throw() {
#else
void(_LIBCXXABI_DTOR_FUNC* dest)(void*)) throw() {
#endif
__cxa_exception* exception_header = cxa_exception_from_thrown_object(object);
exception_header->referenceCount = 0;
exception_header->unexpectedHandler = std::get_unexpected();
exception_header->terminateHandler = std::get_terminate();
exception_header->exceptionType = tinfo;
exception_header->exceptionDestructor = dest;
setOurExceptionClass(&exception_header->unwindHeader);
exception_header->unwindHeader.exception_cleanup = exception_cleanup_func;
return exception_header;
}
// This function shall allocate a __cxa_dependent_exception and
// return a pointer to it. (Really to the object, not past its' end).
@ -254,23 +273,21 @@ will call terminate, assuming that there was no handler for the
exception.
*/
void
#ifdef __wasm__
// In Wasm, a destructor returns its argument
__cxa_throw(void *thrown_object, std::type_info *tinfo, void *(_LIBCXXABI_DTOR_FUNC *dest)(void *)) {
#else
__cxa_throw(void *thrown_object, std::type_info *tinfo, void (_LIBCXXABI_DTOR_FUNC *dest)(void *)) {
__cxa_eh_globals *globals = __cxa_get_globals();
__cxa_exception* exception_header = cxa_exception_from_thrown_object(thrown_object);
#endif
__cxa_eh_globals* globals = __cxa_get_globals();
globals->uncaughtExceptions += 1; // Not atomically, since globals are thread-local
exception_header->unexpectedHandler = std::get_unexpected();
exception_header->terminateHandler = std::get_terminate();
exception_header->exceptionType = tinfo;
exception_header->exceptionDestructor = dest;
setOurExceptionClass(&exception_header->unwindHeader);
exception_header->referenceCount = 1; // This is a newly allocated exception, no need for thread safety.
globals->uncaughtExceptions += 1; // Not atomically, since globals are thread-local
exception_header->unwindHeader.exception_cleanup = exception_cleanup_func;
__cxa_exception* exception_header = __cxa_init_primary_exception(thrown_object, tinfo, dest);
exception_header->referenceCount = 1; // This is a newly allocated exception, no need for thread safety.
#if __has_feature(address_sanitizer)
// Inform the ASan runtime that now might be a good time to clean stuff up.
__asan_handle_no_return();
// Inform the ASan runtime that now might be a good time to clean stuff up.
__asan_handle_no_return();
#endif
#ifdef __USING_SJLJ_EXCEPTIONS__
@ -573,6 +590,11 @@ void __cxa_end_catch() {
}
}
void __cxa_call_terminate(void* unwind_arg) throw() {
__cxa_begin_catch(unwind_arg);
std::terminate();
}
// Note: exception_header may be masquerading as a __cxa_dependent_exception
// and that's ok. exceptionType is there too.
// However watch out for foreign exceptions. Return null for them.
@ -771,6 +793,6 @@ __cxa_uncaught_exceptions() throw()
return globals->uncaughtExceptions;
}
} // extern "C"
} // extern "C"
} // abi