v.g.vassilev created this revision.
v.g.vassilev added reviewers: lhames, sgraenitz, junaire.
Herald added a subscriber: pengfei.
Herald added a project: All.
v.g.vassilev requested review of this revision.
This change follows llvm/llvm-project@21b5ebd and makes use of the jitlink
infrastructure. In order to use this feature inside lldb one needs to run the
lldb command: settings set plugin.jit-loader.gdb.enable on
This works currently only on Darwin since jitlink is not a default ELF/x86-64
backend yet.
https://reviews.llvm.org/D148481
Files:
clang/lib/Interpreter/IncrementalExecutor.cpp
Index: clang/lib/Interpreter/IncrementalExecutor.cpp
===================================================================
--- clang/lib/Interpreter/IncrementalExecutor.cpp
+++ clang/lib/Interpreter/IncrementalExecutor.cpp
@@ -21,11 +21,18 @@
#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
#include "llvm/ExecutionEngine/Orc/LLJIT.h"
#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
+#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/TargetSelect.h"
+// Force linking some of the runtimes that helps attaching to a debugger.
+LLVM_ATTRIBUTE_USED void linkComponents() {
+ llvm::errs() << (void *)&llvm_orc_registerJITLoaderGDBWrapper
+ << (void *)&llvm_orc_registerJITLoaderGDBAllocAction;
+}
+
namespace clang {
IncrementalExecutor::IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
@@ -37,7 +44,12 @@
auto JTMB = JITTargetMachineBuilder(TI.getTriple());
JTMB.addFeatures(TI.getTargetOpts().Features);
- if (auto JitOrErr = LLJITBuilder().setJITTargetMachineBuilder(JTMB).create())
+ LLJITBuilder Builder;
+ Builder.setJITTargetMachineBuilder(JTMB);
+ // Enable debugging of JIT'd code (only works on JITLink for ELF and MachO).
+ Builder.setEnableDebuggerSupport(true);
+
+ if (auto JitOrErr = Builder.create())
Jit = std::move(*JitOrErr);
else {
Err = JitOrErr.takeError();
Index: clang/lib/Interpreter/IncrementalExecutor.cpp
===================================================================
--- clang/lib/Interpreter/IncrementalExecutor.cpp
+++ clang/lib/Interpreter/IncrementalExecutor.cpp
@@ -21,11 +21,18 @@
#include "llvm/ExecutionEngine/Orc/IRCompileLayer.h"
#include "llvm/ExecutionEngine/Orc/LLJIT.h"
#include "llvm/ExecutionEngine/Orc/RTDyldObjectLinkingLayer.h"
+#include "llvm/ExecutionEngine/Orc/TargetProcess/JITLoaderGDB.h"
#include "llvm/ExecutionEngine/SectionMemoryManager.h"
#include "llvm/IR/Module.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/TargetSelect.h"
+// Force linking some of the runtimes that helps attaching to a debugger.
+LLVM_ATTRIBUTE_USED void linkComponents() {
+ llvm::errs() << (void *)&llvm_orc_registerJITLoaderGDBWrapper
+ << (void *)&llvm_orc_registerJITLoaderGDBAllocAction;
+}
+
namespace clang {
IncrementalExecutor::IncrementalExecutor(llvm::orc::ThreadSafeContext &TSC,
@@ -37,7 +44,12 @@
auto JTMB = JITTargetMachineBuilder(TI.getTriple());
JTMB.addFeatures(TI.getTargetOpts().Features);
- if (auto JitOrErr = LLJITBuilder().setJITTargetMachineBuilder(JTMB).create())
+ LLJITBuilder Builder;
+ Builder.setJITTargetMachineBuilder(JTMB);
+ // Enable debugging of JIT'd code (only works on JITLink for ELF and MachO).
+ Builder.setEnableDebuggerSupport(true);
+
+ if (auto JitOrErr = Builder.create())
Jit = std::move(*JitOrErr);
else {
Err = JitOrErr.takeError();
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