llvm-project/llvm/lib/ExecutionEngine/Orc/TargetProcess/DefaultHostBootstrapValues.cpp
Lang Hames 76d5a79bed
[ORC] Drop EHFrameRegistrar, register eh-frames with AllocActions (#130719)
This simplifies resource management, and should improve performance for most use
cases.
2025-03-12 10:02:30 +11:00

37 lines
1.3 KiB
C++

//===----- DefaultHostBootstrapValues.cpp - Defaults for host process -----===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "llvm/ExecutionEngine/Orc/TargetProcess/DefaultHostBootstrapValues.h"
#include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h"
#include "llvm/ExecutionEngine/Orc/TargetProcess/RegisterEHFrames.h"
#ifdef __APPLE__
#include <dlfcn.h>
#endif // __APPLE__
namespace llvm::orc {
void addDefaultBootstrapValuesForHostProcess(
StringMap<std::vector<char>> &BootstrapMap,
StringMap<ExecutorAddr> &BootstrapSymbols) {
// FIXME: We probably shouldn't set these on Windows?
BootstrapSymbols[rt::RegisterEHFrameSectionAllocActionName] =
ExecutorAddr::fromPtr(&llvm_orc_registerEHFrameSectionAllocAction);
BootstrapSymbols[rt::DeregisterEHFrameSectionAllocActionName] =
ExecutorAddr::fromPtr(&llvm_orc_deregisterEHFrameSectionAllocAction);
#ifdef __APPLE__
if (!dlsym(RTLD_DEFAULT, "__unw_add_find_dynamic_unwind_sections"))
BootstrapMap["darwin-use-ehframes-only"].push_back(1);
#endif // __APPLE__
}
} // namespace llvm::orc