4268e677da
The `DebugObjectManagerPlugin` implements debugger support for ELF platforms with the GDB JIT Interface. It emits a separate debug object allocation in addition to the LinkGraph's own allocation. This used to happen in the plugin's `notifyEmitted()` callback, i.e. after the LinkGraph's allocation was finalized. In the meantime, it had to block finalization of the corresponding materialization unit to make sure that the debugger can register the object before the code runs. This patch switches the plugin to use an allocation action instead. We can remove the `notifyEmitted()` hook and implement all steps as JITLink passes.
41 lines
1.5 KiB
C++
41 lines
1.5 KiB
C++
//===----- DefaultHostBootstrapValues.cpp - Defaults for host process -----===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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#include "llvm/ExecutionEngine/Orc/TargetProcess/DefaultHostBootstrapValues.h"
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#include "llvm/ExecutionEngine/Orc/Shared/OrcRTBridge.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
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#include "llvm/ExecutionEngine/Orc/TargetProcess/RegisterEHFrames.h"
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#ifdef __APPLE__
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#include <dlfcn.h>
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#endif // __APPLE__
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namespace llvm::orc {
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void addDefaultBootstrapValuesForHostProcess(
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StringMap<std::vector<char>> &BootstrapMap,
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StringMap<ExecutorAddr> &BootstrapSymbols) {
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// FIXME: We probably shouldn't set these on Windows?
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BootstrapSymbols[rt::RegisterEHFrameSectionAllocActionName] =
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ExecutorAddr::fromPtr(&llvm_orc_registerEHFrameSectionAllocAction);
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BootstrapSymbols[rt::DeregisterEHFrameSectionAllocActionName] =
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ExecutorAddr::fromPtr(&llvm_orc_deregisterEHFrameSectionAllocAction);
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BootstrapSymbols[rt::RegisterJITLoaderGDBAllocActionName] =
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ExecutorAddr::fromPtr(&llvm_orc_registerJITLoaderGDBAllocAction);
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#ifdef __APPLE__
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if (!dlsym(RTLD_DEFAULT, "__unw_add_find_dynamic_unwind_sections"))
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BootstrapMap["darwin-use-ehframes-only"].push_back(1);
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#endif // __APPLE__
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}
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} // namespace llvm::orc
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