diff options
author | Paul Semel <semelpaul@gmail.com> | 2018-07-18 16:39:21 +0000 |
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committer | Paul Semel <semelpaul@gmail.com> | 2018-07-18 16:39:21 +0000 |
commit | baea3f05000a15e5c87fbe5ae04781c216941c3a (patch) | |
tree | bfaf0655938701886e64db103dfc66b41f11d55d /tools/llvm-objdump/llvm-objdump.cpp | |
parent | c279de70f628db9c7fa2534ada27da77bc4a95e2 (diff) |
[llvm-objdump] Add -demangle (-C) option
Differential Revision: https://reviews.llvm.org/D49043
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@337401 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'tools/llvm-objdump/llvm-objdump.cpp')
-rw-r--r-- | tools/llvm-objdump/llvm-objdump.cpp | 38 |
1 files changed, 37 insertions, 1 deletions
diff --git a/tools/llvm-objdump/llvm-objdump.cpp b/tools/llvm-objdump/llvm-objdump.cpp index 4d8a10db0e5..bbac90e74ed 100644 --- a/tools/llvm-objdump/llvm-objdump.cpp +++ b/tools/llvm-objdump/llvm-objdump.cpp @@ -25,6 +25,7 @@ #include "llvm/CodeGen/FaultMaps.h" #include "llvm/DebugInfo/DWARF/DWARFContext.h" #include "llvm/DebugInfo/Symbolize/Symbolize.h" +#include "llvm/Demangle/Demangle.h" #include "llvm/MC/MCAsmInfo.h" #include "llvm/MC/MCContext.h" #include "llvm/MC/MCDisassembler/MCDisassembler.h" @@ -90,6 +91,13 @@ static cl::alias DisassembleAlld("D", cl::desc("Alias for --disassemble-all"), cl::aliasopt(DisassembleAll)); +cl::opt<std::string> llvm::Demangle("demangle", + cl::desc("Demangle symbols names"), + cl::ValueOptional, cl::init("none")); + +static cl::alias DemangleShort("C", cl::desc("Alias for --demangle"), + cl::aliasopt(Demangle)); + static cl::list<std::string> DisassembleFunctions("df", cl::CommaSeparated, @@ -330,6 +338,11 @@ LLVM_ATTRIBUTE_NORETURN void llvm::error(Twine Message) { exit(1); } +void llvm::warn(StringRef Message) { + errs() << ToolName << ": warning: " << Message << ".\n"; + errs().flush(); +} + LLVM_ATTRIBUTE_NORETURN void llvm::report_error(StringRef File, Twine Message) { errs() << ToolName << ": '" << File << "': " << Message << ".\n"; @@ -1511,7 +1524,25 @@ static void DisassembleObject(const ObjectFile *Obj, bool InlineRelocs) { } } - outs() << '\n' << std::get<1>(Symbols[si]) << ":\n"; + auto PrintSymbol = [](StringRef Name) { + outs() << '\n' << Name << ":\n"; + }; + StringRef SymbolName = std::get<1>(Symbols[si]); + if (Demangle.getValue() == "" || Demangle.getValue() == "itanium") { + char *DemangledSymbol = nullptr; + size_t Size = 0; + int Status; + DemangledSymbol = + itaniumDemangle(SymbolName.data(), DemangledSymbol, &Size, &Status); + if (Status == 0) + PrintSymbol(StringRef(DemangledSymbol)); + else + PrintSymbol(SymbolName); + + if (Size != 0) + free(DemangledSymbol); + } else + PrintSymbol(SymbolName); // Don't print raw contents of a virtual section. A virtual section // doesn't have any contents in the file. @@ -2359,6 +2390,11 @@ int main(int argc, char **argv) { if (DisassembleAll || PrintSource || PrintLines) Disassemble = true; + + if (Demangle.getValue() != "none" && Demangle.getValue() != "" && + Demangle.getValue() != "itanium") + warn("Unsupported demangling style"); + if (!Disassemble && !Relocations && !DynamicRelocations |