Atmosphere/libraries/libstratosphere/source/ams/ams_environment_weak.cpp

82 lines
2.3 KiB
C++

/*
* Copyright (c) 2018-2020 Atmosphère-NX
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stratosphere.hpp>
extern "C" void NORETURN __real_exit(int rc);
namespace ams {
WEAK_SYMBOL void *Malloc(size_t size) {
return std::malloc(size);
}
WEAK_SYMBOL void Free(void *ptr) {
return std::free(ptr);
}
WEAK_SYMBOL void *MallocForRapidJson(size_t size) {
return std::malloc(size);
}
WEAK_SYMBOL void *ReallocForRapidJson(void *ptr, size_t size) {
return std::realloc(ptr, size);
}
WEAK_SYMBOL void FreeForRapidJson(void *ptr) {
return std::free(ptr);
}
WEAK_SYMBOL void NORETURN Exit(int rc) {
__real_exit(rc);
__builtin_unreachable();
}
NOINLINE NORETURN void AbortImpl() {
/* Just perform a data abort. */
register u64 addr __asm__("x27") = FatalErrorContext::StdAbortMagicAddress;
register u64 val __asm__("x28") = FatalErrorContext::StdAbortMagicValue;
while (true) {
__asm__ __volatile__ (
"str %[val], [%[addr]]"
:
: [val]"r"(val), [addr]"r"(addr)
);
}
__builtin_unreachable();
}
}
extern "C" {
/* Redefine abort to trigger these handlers. */
void abort();
/* Redefine C++ exception handlers. Requires wrap linker flag. */
#define WRAP_ABORT_FUNC(func) void NORETURN __wrap_##func(void) { ::ams::AbortImpl(); __builtin_unreachable(); }
WRAP_ABORT_FUNC(__cxa_pure_virtual)
#undef WRAP_ABORT_FUNC
void NORETURN __wrap_exit(int rc) { ::ams::Exit(rc); __builtin_unreachable(); }
}
/* Custom abort handler, so that std::abort will trigger these. */
void abort() {
ams::AbortImpl();
__builtin_unreachable();
}