6502/llvm-6502
1
0
Fork 0
mirror of https://github.com/c64scene-ar/llvm-6502.git synced 2024-12-12 13:30:51 +00:00
Code Issues Projects Releases Wiki Activity

llvm-nm: Update to use the new LLVMObject library.

Browse Source 
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@123897 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Michael J. Spencer 2011-01-20 06:38:57 +00:00
parent b84551a14f
commit 20d335aa04
3 changed files with 192 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
tools/llvm-nm/CMakeLists.txt
View File

@ -1,4 +1,4 @@
set(LLVM_LINK_COMPONENTS archive bitreader)
set(LLVM_LINK_COMPONENTS archive bitreader object)
add_llvm_tool(llvm-nm
llvm-nm.cpp

2
tools/llvm-nm/Makefile
View File

@ -9,7 +9,7 @@
LEVEL = ../..
TOOLNAME = llvm-nm
LINK_COMPONENTS = archive bitreader
LINK_COMPONENTS = archive bitreader object
# This tool has no plugins, optimize startup time.
TOOL_NO_EXPORTS = 1

220
tools/llvm-nm/llvm-nm.cpp
View File

@ -20,18 +20,23 @@
#include "llvm/Module.h"
#include "llvm/Bitcode/ReaderWriter.h"
#include "llvm/Bitcode/Archive.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/raw_ostream.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/system_error.h"
#include <algorithm>
#include <cctype>
#include <cerrno>
#include <cstring>
#include <vector>
using namespace llvm;
using namespace object;
namespace {
enum OutputFormatTy { bsd, sysv, posix };
@ -65,11 +70,148 @@ namespace {
cl::opt<bool> BSDFormat("B", cl::desc("Alias for --format=bsd"));
cl::opt<bool> POSIXFormat("P", cl::desc("Alias for --format=posix"));
cl::opt<bool> PrintFileName("print-file-name",
cl::desc("Precede each symbol with the object file it came from"));
cl::alias PrintFileNameA("A", cl::desc("Alias for --print-file-name"),
cl::aliasopt(PrintFileName));
cl::alias PrintFileNameo("o", cl::desc("Alias for --print-file-name"),
cl::aliasopt(PrintFileName));
cl::opt<bool> DebugSyms("debug-syms",
cl::desc("Show all symbols, even debugger only"));
cl::alias DebugSymsa("a", cl::desc("Alias for --debug-syms"),
cl::aliasopt(DebugSyms));
cl::opt<bool> NumericSort("numeric-sort",
cl::desc("Sort symbols by address"));
cl::alias NumericSortn("n", cl::desc("Alias for --numeric-sort"),
cl::aliasopt(NumericSort));
cl::alias NumericSortv("v", cl::desc("Alias for --numeric-sort"),
cl::aliasopt(NumericSort));
cl::opt<bool> NoSort("no-sort",
cl::desc("Show symbols in order encountered"));
cl::alias NoSortp("p", cl::desc("Alias for --no-sort"),
cl::aliasopt(NoSort));
cl::opt<bool> PrintSize("print-size",
cl::desc("Show symbol size instead of address"));
cl::alias PrintSizeS("S", cl::desc("Alias for --print-size"),
cl::aliasopt(PrintSize));
cl::opt<bool> SizeSort("size-sort", cl::desc("Sort symbols by size"));
bool PrintAddress = true;
bool MultipleFiles = false;
std::string ToolName;
}
namespace {
struct NMSymbol {
uint64_t Address;
uint64_t Size;
char TypeChar;
StringRef Name;
};
static bool CompareSymbolAddress(const NMSymbol &a, const NMSymbol &b) {
if (a.Address < b.Address)
return true;
else if (a.Address == b.Address && a.Name < b.Name)
return true;
else
return false;
}
static bool CompareSymbolSize(const NMSymbol &a, const NMSymbol &b) {
if (a.Size < b.Size)
return true;
else if (a.Size == b.Size && a.Name < b.Name)
return true;
else
return false;
}
static bool CompareSymbolName(const NMSymbol &a, const NMSymbol &b) {
return a.Name < b.Name;
}
StringRef CurrentFilename;
typedef std::vector<NMSymbol> SymbolListT;
SymbolListT SymbolList;
}
static void SortAndPrintSymbolList() {
if (!NoSort) {
if (NumericSort)
std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolAddress);
else if (SizeSort)
std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolSize);
else
std::sort(SymbolList.begin(), SymbolList.end(), CompareSymbolName);
}
if (OutputFormat == posix && MultipleFiles) {
outs() << '\n' << CurrentFilename << ":\n";
} else if (OutputFormat == bsd && MultipleFiles) {
outs() << "\n" << CurrentFilename << ":\n";
} else if (OutputFormat == sysv) {
outs() << "\n\nSymbols from " << CurrentFilename << ":\n\n"
<< "Name Value Class Type"
<< " Size Line Section\n";
}
for (SymbolListT::iterator i = SymbolList.begin(),
e = SymbolList.end(); i != e; ++i) {
if ((i->TypeChar != 'U') && UndefinedOnly)
continue;
if ((i->TypeChar == 'U') && DefinedOnly)
continue;
if (SizeSort && !PrintAddress && i->Size == UnknownAddressOrSize)
continue;
char SymbolAddrStr[10] = "";
char SymbolSizeStr[10] = "";
if (OutputFormat == sysv || i->Address == object::UnknownAddressOrSize)
strcpy(SymbolAddrStr, " ");
if (OutputFormat == sysv)
strcpy(SymbolSizeStr, " ");
if (i->Address != object::UnknownAddressOrSize)
format("%08x", i->Address).print(SymbolAddrStr, sizeof(SymbolAddrStr));
if (i->Size != object::UnknownAddressOrSize)
format("%08x", i->Size).print(SymbolSizeStr, sizeof(SymbolSizeStr));
if (OutputFormat == posix) {
outs() << i->Name << " " << i->TypeChar << " "
<< SymbolAddrStr << SymbolSizeStr << "\n";
} else if (OutputFormat == bsd) {
if (PrintAddress)
outs() << SymbolAddrStr << ' ';
if (PrintSize) {
outs() << SymbolSizeStr;
if (i->Size != object::UnknownAddressOrSize)
outs() << ' ';
}
outs() << i->TypeChar << " " << i->Name << "\n";
} else if (OutputFormat == sysv) {
std::string PaddedName (i->Name);
while (PaddedName.length () < 20)
PaddedName += " ";
outs() << PaddedName << "|" << SymbolAddrStr << "| "
<< i->TypeChar
<< " | |" << SymbolSizeStr << "| |\n";
}
}
SymbolList.clear();
}
static char TypeCharForSymbol(GlobalValue &GV) {
if (GV.isDeclaration()) return 'U';
if (GV.hasLinkOnceLinkage()) return 'C';
@ -95,53 +237,57 @@ static void DumpSymbolNameForGlobalValue(GlobalValue &GV) {
GV.hasLinkerPrivateWeakDefAutoLinkage() ||
GV.hasAvailableExternallyLinkage())
return;
const std::string SymbolAddrStr = " "; // Not used yet...
char TypeChar = TypeCharForSymbol(GV);
if ((TypeChar != 'U') && UndefinedOnly)
return;
if ((TypeChar == 'U') && DefinedOnly)
return;
if (GV.hasLocalLinkage () && ExternalOnly)
return;
if (OutputFormat == posix) {
outs() << GV.getName () << " " << TypeCharForSymbol(GV) << " "
<< SymbolAddrStr << "\n";
} else if (OutputFormat == bsd) {
outs() << SymbolAddrStr << " " << TypeCharForSymbol(GV) << " "
<< GV.getName () << "\n";
} else if (OutputFormat == sysv) {
std::string PaddedName (GV.getName ());
while (PaddedName.length () < 20)
PaddedName += " ";
outs() << PaddedName << "|" << SymbolAddrStr << "| "
<< TypeCharForSymbol(GV)
<< " | | | |\n";
}
NMSymbol s;
s.Address = object::UnknownAddressOrSize;
s.Size = object::UnknownAddressOrSize;
s.TypeChar = TypeChar;
s.Name = GV.getName();
SymbolList.push_back(s);
}
static void DumpSymbolNamesFromModule(Module *M) {
const std::string &Filename = M->getModuleIdentifier ();
if (OutputFormat == posix && MultipleFiles) {
outs() << Filename << ":\n";
} else if (OutputFormat == bsd && MultipleFiles) {
outs() << "\n" << Filename << ":\n";
} else if (OutputFormat == sysv) {
outs() << "\n\nSymbols from " << Filename << ":\n\n"
<< "Name Value Class Type"
<< " Size Line Section\n";
}
CurrentFilename = M->getModuleIdentifier();
std::for_each (M->begin(), M->end(), DumpSymbolNameForGlobalValue);
std::for_each (M->global_begin(), M->global_end(),
DumpSymbolNameForGlobalValue);
std::for_each (M->alias_begin(), M->alias_end(),
DumpSymbolNameForGlobalValue);
SortAndPrintSymbolList();
}
static void DumpSymbolNamesFromObject(ObjectFile *obj) {
for (ObjectFile::symbol_iterator i = obj->begin_symbols(),
e = obj->end_symbols(); i != e; ++i) {
if (!DebugSyms && i->isInternal())
continue;
NMSymbol s;
s.Size = object::UnknownAddressOrSize;
s.Address = object::UnknownAddressOrSize;
if (PrintSize || SizeSort)
s.Size = i->getSize();
if (PrintAddress)
s.Address = i->getAddress();
s.TypeChar = i->getNMTypeChar();
s.Name = i->getName();
SymbolList.push_back(s);
}
CurrentFilename = obj->getFilename();
SortAndPrintSymbolList();
}
static void DumpSymbolNamesFromFile(std::string &Filename) {
LLVMContext &Context = getGlobalContext();
std::string ErrorMessage;
sys::Path aPath(Filename);
bool exists;
if (sys::fs::exists(aPath.str(), exists) || !exists)
errs() << ToolName << ": '" << Filename << "': " << "No such file\n";
// Note: Currently we do not support reading an archive from stdin.
if (Filename == "-" || aPath.isBitcodeFile()) {
OwningPtr<MemoryBuffer> Buffer;
@ -170,6 +316,14 @@ static void DumpSymbolNamesFromFile(std::string &Filename) {
}
MultipleFiles = true;
std::for_each (Modules.begin(), Modules.end(), DumpSymbolNamesFromModule);
} else if (aPath.isObjectFile()) {
std::auto_ptr<ObjectFile> obj(ObjectFile::createObjectFile(aPath.str()));
if (!obj.get()) {
errs() << ToolName << ": " << Filename << ": "
<< "Failed to open object file\n";
return;
}
DumpSymbolNamesFromObject(obj.get());
} else {
errs() << ToolName << ": " << Filename << ": "
<< "unrecognizable file type\n";
@ -189,6 +343,12 @@ int main(int argc, char **argv) {
if (BSDFormat) OutputFormat = bsd;
if (POSIXFormat) OutputFormat = posix;
// The relative order of these is important. If you pass --size-sort it should
// only print out the size. However, if you pass -S --size-sort, it should
// print out both the size and address.
if (SizeSort && !PrintSize) PrintAddress = false;
if (OutputFormat == sysv || SizeSort) PrintSize = true;
switch (InputFilenames.size()) {
case 0: InputFilenames.push_back("-");
case 1: break;