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Add support for fetching inlining context (stack of source code locations)

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by instruction address from DWARF.

Add --inlining flag to llvm-dwarfdump to demonstrate and test this functionality,
so that "llvm-dwarfdump --inlining --address=0x..." now works much like
"addr2line -i 0x...", provided that the binary has debug info
(Clang's -gline-tables-only *is* enough).


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@163128 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Alexey Samsonov
2012-09-04 08:12:33 +00:00
parent 2d5c28da0d
commit 5eae90d727
12 changed files with 359 additions and 88 deletions
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24
include/llvm/DebugInfo/DIContext.h
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@ -15,6 +15,7 @@
#ifndef LLVM_DEBUGINFO_DICONTEXT_H
#define LLVM_DEBUGINFO_DICONTEXT_H
#include "llvm/ADT/SmallVector.h"
#include "llvm/ADT/SmallString.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/DataTypes.h"
@ -54,6 +55,23 @@ public:
}
};
/// DIInliningInfo - a format-neutral container for inlined code description.
class DIInliningInfo {
SmallVector<DILineInfo, 4> Frames;
public:
DIInliningInfo() {}
DILineInfo getFrame(unsigned Index) const {
assert(Index < Frames.size());
return Frames[Index];
}
uint32_t getNumberOfFrames() const {
return Frames.size();
}
void addFrame(const DILineInfo &Frame) {
Frames.push_back(Frame);
}
};
/// DILineInfoSpecifier - controls which fields of DILineInfo container
/// should be filled with data.
class DILineInfoSpecifier {
@ -86,8 +104,10 @@ public:
virtual void dump(raw_ostream &OS) = 0;
virtual DILineInfo getLineInfoForAddress(uint64_t address,
DILineInfoSpecifier specifier = DILineInfoSpecifier()) = 0;
virtual DILineInfo getLineInfoForAddress(uint64_t Address,
DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
virtual DIInliningInfo getInliningInfoForAddress(uint64_t Address,
DILineInfoSpecifier Specifier = DILineInfoSpecifier()) = 0;
};
}