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llvm-objdump: Detach symbol listing from section enumeration for mach-o.

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This reduces memory usage as we don't add the same symbol multiple times anymore.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@140278 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer 2011-09-21 22:16:43 +00:00
parent 3ca2ad1156
commit afbaf48fc4
1 changed files with 16 additions and 19 deletions
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35
tools/llvm-objdump/MachODump.cpp
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@ -230,15 +230,6 @@ static void getSectionsAndSymbols(const macho::Header &Header,
MachOObj->ReadSection(LCI, SectNum, Sect);
Sections.push_back(copySection(Sect));
// Store the symbols in this section.
if (SymtabLC) {
for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) {
InMemoryStruct<macho::SymbolTableEntry> STE;
MachOObj->ReadSymbolTableEntry((*SymtabLC)->SymbolTableOffset, i,
STE);
Symbols.push_back(copySymbol(STE));
}
}
}
} else if (LCI.Command.Type == macho::LCT_Segment64) {
InMemoryStruct<macho::Segment64LoadCommand> Segment64LC;
@ -250,16 +241,6 @@ static void getSectionsAndSymbols(const macho::Header &Header,
InMemoryStruct<macho::Section64> Sect64;
MachOObj->ReadSection64(LCI, SectNum, Sect64);
Sections.push_back(copySection(Sect64));
// Store the symbols in this section.
if (SymtabLC) {
for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) {
InMemoryStruct<macho::Symbol64TableEntry> STE;
MachOObj->ReadSymbol64TableEntry((*SymtabLC)->SymbolTableOffset, i,
STE);
Symbols.push_back(copySymbol(STE));
}
}
}
} else if (LCI.Command.Type == macho::LCT_FunctionStarts) {
// We found a function starts segment, parse the addresses for later
@ -270,6 +251,22 @@ static void getSectionsAndSymbols(const macho::Header &Header,
MachOObj->ReadULEB128s(LLC->DataOffset, FoundFns);
}
}
// Store the symbols.
if (SymtabLC) {
for (unsigned i = 0; i != (*SymtabLC)->NumSymbolTableEntries; ++i) {
if (MachOObj->is64Bit()) {
InMemoryStruct<macho::Symbol64TableEntry> STE;
MachOObj->ReadSymbol64TableEntry((*SymtabLC)->SymbolTableOffset, i,
STE);
Symbols.push_back(copySymbol(STE));
} else {
InMemoryStruct<macho::SymbolTableEntry> STE;
MachOObj->ReadSymbolTableEntry((*SymtabLC)->SymbolTableOffset, i,
STE);
Symbols.push_back(copySymbol(STE));
}
}
}
}
void llvm::DisassembleInputMachO(StringRef Filename) {