mirror of
https://git.suyu.dev/suyu/suyu
synced 2024-12-25 19:02:45 -06:00
42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
// SPDX-FileCopyrightText: Copyright 2023 yuzu Emulator Project
|
|
// SPDX-License-Identifier: GPL-2.0-or-later
|
|
|
|
#include <dlfcn.h>
|
|
|
|
#include "common/assert.h"
|
|
#include "common/dynamic_library.h"
|
|
#include "common/scope_exit.h"
|
|
#include "common/signal_chain.h"
|
|
|
|
namespace Common {
|
|
|
|
template <typename T>
|
|
T* LookupLibcSymbol(const char* name) {
|
|
#if defined(__BIONIC__)
|
|
Common::DynamicLibrary provider("libc.so");
|
|
if (!provider.IsOpen()) {
|
|
UNREACHABLE_MSG("Failed to open libc!");
|
|
}
|
|
#else
|
|
// For other operating environments, we assume the symbol is not overridden.
|
|
const char* base = nullptr;
|
|
Common::DynamicLibrary provider(base);
|
|
#endif
|
|
|
|
void* sym = provider.GetSymbolAddress(name);
|
|
if (sym == nullptr) {
|
|
sym = dlsym(RTLD_DEFAULT, name);
|
|
}
|
|
if (sym == nullptr) {
|
|
UNREACHABLE_MSG("Unable to find symbol {}!", name);
|
|
}
|
|
|
|
return reinterpret_cast<T*>(sym);
|
|
}
|
|
|
|
int SigAction(int signum, const struct sigaction* act, struct sigaction* oldact) {
|
|
static auto libc_sigaction = LookupLibcSymbol<decltype(sigaction)>("sigaction");
|
|
return libc_sigaction(signum, act, oldact);
|
|
}
|
|
|
|
} // namespace Common
|