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