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llvm-project/llvm/tools/llvm-size/llvm-size.cpp
Fangrui Song 47db32e542 [llvm-size] Switch command line parsing from llvm::cl to OptTable 
Part of https://lists.llvm.org/pipermail/llvm-dev/2021-July/151622.html
"Binary utilities: switch command line parsing from llvm::cl to OptTable"

* `--totals=false` and `--totals=0` cannot be used. Omit the option.
* `--help-list` is removed. This is a `cl::` specific option.

OptTable avoids global option collision if we decide to support multiplexing for binary utilities.

Note: because the tool is simple, and its long options are uncommon, I just drop
the one-dash forms except `-arch <value>` (Darwin style).

Reviewed By: jhenderson

Differential Revision: https://reviews.llvm.org/D105598
2021-07-09 10:26:53 -07:00

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//===-- llvm-size.cpp - Print the size of each object section ---*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This program is a utility that works like traditional Unix "size",
// that is, it prints out the size of each section, and the total size of all
// sections.
//
//===----------------------------------------------------------------------===//
#include "llvm/ADT/APInt.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/ELFObjectFile.h"
#include "llvm/Object/MachO.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Option/Arg.h"
#include "llvm/Option/ArgList.h"
#include "llvm/Option/Option.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/InitLLVM.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/WithColor.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <string>
#include <system_error>
using namespace llvm;
using namespace object;
namespace {
using namespace llvm::opt; // for HelpHidden in Opts.inc
enum ID {
OPT_INVALID = 0, // This is not an option ID.
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
OPT_##ID,
#include "Opts.inc"
#undef OPTION
};
#define PREFIX(NAME, VALUE) const char *const NAME[] = VALUE;
#include "Opts.inc"
#undef PREFIX
const opt::OptTable::Info InfoTable[] = {
#define OPTION(PREFIX, NAME, ID, KIND, GROUP, ALIAS, ALIASARGS, FLAGS, PARAM, \
HELPTEXT, METAVAR, VALUES) \
{ \
PREFIX, NAME, HELPTEXT, \
METAVAR, OPT_##ID, opt::Option::KIND##Class, \
PARAM, FLAGS, OPT_##GROUP, \
OPT_##ALIAS, ALIASARGS, VALUES},
#include "Opts.inc"
#undef OPTION
};
class SizeOptTable : public opt::OptTable {
public:
SizeOptTable() : OptTable(InfoTable) { setGroupedShortOptions(true); }
};
enum OutputFormatTy { berkeley, sysv, darwin };
enum RadixTy { octal = 8, decimal = 10, hexadecimal = 16 };
} // namespace
static bool ArchAll = false;
static std::vector<StringRef> ArchFlags;
static bool ELFCommons;
static OutputFormatTy OutputFormat;
static bool DarwinLongFormat;
static RadixTy Radix;
static bool TotalSizes;
static std::vector<std::string> InputFilenames;
static std::string ToolName;
// States
static bool HadError = false;
static bool BerkeleyHeaderPrinted = false;
static bool MoreThanOneFile = false;
static uint64_t TotalObjectText = 0;
static uint64_t TotalObjectData = 0;
static uint64_t TotalObjectBss = 0;
static uint64_t TotalObjectTotal = 0;
static void error(const Twine &Message, StringRef File = "") {
HadError = true;
if (File.empty())
WithColor::error(errs(), ToolName) << Message << '\n';
else
WithColor::error(errs(), ToolName)
<< "'" << File << "': " << Message << '\n';
}
// This version of error() prints the archive name and member name, for example:
// "libx.a(foo.o)" after the ToolName before the error message. It sets
// HadError but returns allowing the code to move on to other archive members.
static void error(llvm::Error E, StringRef FileName, const Archive::Child &C,
StringRef ArchitectureName = StringRef()) {
HadError = true;
WithColor::error(errs(), ToolName) << "'" << FileName << "'";
Expected<StringRef> NameOrErr = C.getName();
// TODO: if we have a error getting the name then it would be nice to print
// the index of which archive member this is and or its offset in the
// archive instead of "???" as the name.
if (!NameOrErr) {
consumeError(NameOrErr.takeError());
errs() << "(" << "???" << ")";
} else
errs() << "(" << NameOrErr.get() << ")";
if (!ArchitectureName.empty())
errs() << " (for architecture " << ArchitectureName << ") ";
std::string Buf;
raw_string_ostream OS(Buf);
logAllUnhandledErrors(std::move(E), OS);
OS.flush();
errs() << ": " << Buf << "\n";
}
// This version of error() prints the file name and which architecture slice it // is from, for example: "foo.o (for architecture i386)" after the ToolName
// before the error message. It sets HadError but returns allowing the code to
// move on to other architecture slices.
static void error(llvm::Error E, StringRef FileName,
StringRef ArchitectureName = StringRef()) {
HadError = true;
WithColor::error(errs(), ToolName) << "'" << FileName << "'";
if (!ArchitectureName.empty())
errs() << " (for architecture " << ArchitectureName << ") ";
std::string Buf;
raw_string_ostream OS(Buf);
logAllUnhandledErrors(std::move(E), OS);
OS.flush();
errs() << ": " << Buf << "\n";
}
/// Get the length of the string that represents @p num in Radix including the
/// leading 0x or 0 for hexadecimal and octal respectively.
static size_t getNumLengthAsString(uint64_t num) {
APInt conv(64, num);
SmallString<32> result;
conv.toString(result, Radix, false, true);
return result.size();
}
/// Return the printing format for the Radix.
static const char *getRadixFmt() {
switch (Radix) {
case octal:
return PRIo64;
case decimal:
return PRIu64;
case hexadecimal:
return PRIx64;
}
return nullptr;
}
/// Remove unneeded ELF sections from calculation
static bool considerForSize(ObjectFile *Obj, SectionRef Section) {
if (!Obj->isELF())
return true;
switch (static_cast<ELFSectionRef>(Section).getType()) {
case ELF::SHT_NULL:
case ELF::SHT_SYMTAB:
return false;
case ELF::SHT_STRTAB:
case ELF::SHT_REL:
case ELF::SHT_RELA:
return static_cast<ELFSectionRef>(Section).getFlags() & ELF::SHF_ALLOC;
}
return true;
}
/// Total size of all ELF common symbols
static Expected<uint64_t> getCommonSize(ObjectFile *Obj) {
uint64_t TotalCommons = 0;
for (auto &Sym : Obj->symbols()) {
Expected<uint32_t> SymFlagsOrErr =
Obj->getSymbolFlags(Sym.getRawDataRefImpl());
if (!SymFlagsOrErr)
return SymFlagsOrErr.takeError();
if (*SymFlagsOrErr & SymbolRef::SF_Common)
TotalCommons += Obj->getCommonSymbolSize(Sym.getRawDataRefImpl());
}
return TotalCommons;
}
/// Print the size of each Mach-O segment and section in @p MachO.
///
/// This is when used when @c OutputFormat is darwin and produces the same
/// output as darwin's size(1) -m output.
static void printDarwinSectionSizes(MachOObjectFile *MachO) {
std::string fmtbuf;
raw_string_ostream fmt(fmtbuf);
const char *radix_fmt = getRadixFmt();
if (Radix == hexadecimal)
fmt << "0x";
fmt << "%" << radix_fmt;
uint32_t Filetype = MachO->getHeader().filetype;
uint64_t total = 0;
for (const auto &Load : MachO->load_commands()) {
if (Load.C.cmd == MachO::LC_SEGMENT_64) {
MachO::segment_command_64 Seg = MachO->getSegment64LoadCommand(Load);
outs() << "Segment " << Seg.segname << ": "
<< format(fmt.str().c_str(), Seg.vmsize);
if (DarwinLongFormat)
outs() << " (vmaddr 0x" << format("%" PRIx64, Seg.vmaddr) << " fileoff "
<< Seg.fileoff << ")";
outs() << "\n";
total += Seg.vmsize;
uint64_t sec_total = 0;
for (unsigned J = 0; J < Seg.nsects; ++J) {
MachO::section_64 Sec = MachO->getSection64(Load, J);
if (Filetype == MachO::MH_OBJECT)
outs() << "\tSection (" << format("%.16s", &Sec.segname) << ", "
<< format("%.16s", &Sec.sectname) << "): ";
else
outs() << "\tSection " << format("%.16s", &Sec.sectname) << ": ";
outs() << format(fmt.str().c_str(), Sec.size);
if (DarwinLongFormat)
outs() << " (addr 0x" << format("%" PRIx64, Sec.addr) << " offset "
<< Sec.offset << ")";
outs() << "\n";
sec_total += Sec.size;
}
if (Seg.nsects != 0)
outs() << "\ttotal " << format(fmt.str().c_str(), sec_total) << "\n";
} else if (Load.C.cmd == MachO::LC_SEGMENT) {
MachO::segment_command Seg = MachO->getSegmentLoadCommand(Load);
uint64_t Seg_vmsize = Seg.vmsize;
outs() << "Segment " << Seg.segname << ": "
<< format(fmt.str().c_str(), Seg_vmsize);
if (DarwinLongFormat)
outs() << " (vmaddr 0x" << format("%" PRIx32, Seg.vmaddr) << " fileoff "
<< Seg.fileoff << ")";
outs() << "\n";
total += Seg.vmsize;
uint64_t sec_total = 0;
for (unsigned J = 0; J < Seg.nsects; ++J) {
MachO::section Sec = MachO->getSection(Load, J);
if (Filetype == MachO::MH_OBJECT)
outs() << "\tSection (" << format("%.16s", &Sec.segname) << ", "
<< format("%.16s", &Sec.sectname) << "): ";
else
outs() << "\tSection " << format("%.16s", &Sec.sectname) << ": ";
uint64_t Sec_size = Sec.size;
outs() << format(fmt.str().c_str(), Sec_size);
if (DarwinLongFormat)
outs() << " (addr 0x" << format("%" PRIx32, Sec.addr) << " offset "
<< Sec.offset << ")";
outs() << "\n";
sec_total += Sec.size;
}
if (Seg.nsects != 0)
outs() << "\ttotal " << format(fmt.str().c_str(), sec_total) << "\n";
}
}
outs() << "total " << format(fmt.str().c_str(), total) << "\n";
}
/// Print the summary sizes of the standard Mach-O segments in @p MachO.
///
/// This is when used when @c OutputFormat is berkeley with a Mach-O file and
/// produces the same output as darwin's size(1) default output.
static void printDarwinSegmentSizes(MachOObjectFile *MachO) {
uint64_t total_text = 0;
uint64_t total_data = 0;
uint64_t total_objc = 0;
uint64_t total_others = 0;
for (const auto &Load : MachO->load_commands()) {
if (Load.C.cmd == MachO::LC_SEGMENT_64) {
MachO::segment_command_64 Seg = MachO->getSegment64LoadCommand(Load);
if (MachO->getHeader().filetype == MachO::MH_OBJECT) {
for (unsigned J = 0; J < Seg.nsects; ++J) {
MachO::section_64 Sec = MachO->getSection64(Load, J);
StringRef SegmentName = StringRef(Sec.segname);
if (SegmentName == "__TEXT")
total_text += Sec.size;
else if (SegmentName == "__DATA")
total_data += Sec.size;
else if (SegmentName == "__OBJC")
total_objc += Sec.size;
else
total_others += Sec.size;
}
} else {
StringRef SegmentName = StringRef(Seg.segname);
if (SegmentName == "__TEXT")
total_text += Seg.vmsize;
else if (SegmentName == "__DATA")
total_data += Seg.vmsize;
else if (SegmentName == "__OBJC")
total_objc += Seg.vmsize;
else
total_others += Seg.vmsize;
}
} else if (Load.C.cmd == MachO::LC_SEGMENT) {
MachO::segment_command Seg = MachO->getSegmentLoadCommand(Load);
if (MachO->getHeader().filetype == MachO::MH_OBJECT) {
for (unsigned J = 0; J < Seg.nsects; ++J) {
MachO::section Sec = MachO->getSection(Load, J);
StringRef SegmentName = StringRef(Sec.segname);
if (SegmentName == "__TEXT")
total_text += Sec.size;
else if (SegmentName == "__DATA")
total_data += Sec.size;
else if (SegmentName == "__OBJC")
total_objc += Sec.size;
else
total_others += Sec.size;
}
} else {
StringRef SegmentName = StringRef(Seg.segname);
if (SegmentName == "__TEXT")
total_text += Seg.vmsize;
else if (SegmentName == "__DATA")
total_data += Seg.vmsize;
else if (SegmentName == "__OBJC")
total_objc += Seg.vmsize;
else
total_others += Seg.vmsize;
}
}
}
uint64_t total = total_text + total_data + total_objc + total_others;
if (!BerkeleyHeaderPrinted) {
outs() << "__TEXT\t__DATA\t__OBJC\tothers\tdec\thex\n";
BerkeleyHeaderPrinted = true;
}
outs() << total_text << "\t" << total_data << "\t" << total_objc << "\t"
<< total_others << "\t" << total << "\t" << format("%" PRIx64, total)
<< "\t";
}
/// Print the size of each section in @p Obj.
///
/// The format used is determined by @c OutputFormat and @c Radix.
static void printObjectSectionSizes(ObjectFile *Obj) {
uint64_t total = 0;
std::string fmtbuf;
raw_string_ostream fmt(fmtbuf);
const char *radix_fmt = getRadixFmt();
// If OutputFormat is darwin and we have a MachOObjectFile print as darwin's
// size(1) -m output, else if OutputFormat is darwin and not a Mach-O object
// let it fall through to OutputFormat berkeley.
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(Obj);
if (OutputFormat == darwin && MachO)
printDarwinSectionSizes(MachO);
// If we have a MachOObjectFile and the OutputFormat is berkeley print as
// darwin's default berkeley format for Mach-O files.
else if (MachO && OutputFormat == berkeley)
printDarwinSegmentSizes(MachO);
else if (OutputFormat == sysv) {
// Run two passes over all sections. The first gets the lengths needed for
// formatting the output. The second actually does the output.
std::size_t max_name_len = strlen("section");
std::size_t max_size_len = strlen("size");
std::size_t max_addr_len = strlen("addr");
for (const SectionRef &Section : Obj->sections()) {
if (!considerForSize(Obj, Section))
continue;
uint64_t size = Section.getSize();
total += size;
Expected<StringRef> name_or_err = Section.getName();
if (!name_or_err) {
error(name_or_err.takeError(), Obj->getFileName());
return;
}
uint64_t addr = Section.getAddress();
max_name_len = std::max(max_name_len, name_or_err->size());
max_size_len = std::max(max_size_len, getNumLengthAsString(size));
max_addr_len = std::max(max_addr_len, getNumLengthAsString(addr));
}
// Add extra padding.
max_name_len += 2;
max_size_len += 2;
max_addr_len += 2;
// Setup header format.
fmt << "%-" << max_name_len << "s "
<< "%" << max_size_len << "s "
<< "%" << max_addr_len << "s\n";
// Print header
outs() << format(fmt.str().c_str(), static_cast<const char *>("section"),
static_cast<const char *>("size"),
static_cast<const char *>("addr"));
fmtbuf.clear();
// Setup per section format.
fmt << "%-" << max_name_len << "s "
<< "%#" << max_size_len << radix_fmt << " "
<< "%#" << max_addr_len << radix_fmt << "\n";
// Print each section.
for (const SectionRef &Section : Obj->sections()) {
if (!considerForSize(Obj, Section))
continue;
Expected<StringRef> name_or_err = Section.getName();
if (!name_or_err) {
error(name_or_err.takeError(), Obj->getFileName());
return;
}
uint64_t size = Section.getSize();
uint64_t addr = Section.getAddress();
outs() << format(fmt.str().c_str(), name_or_err->str().c_str(), size, addr);
}
if (ELFCommons) {
if (Expected<uint64_t> CommonSizeOrErr = getCommonSize(Obj)) {
total += *CommonSizeOrErr;
outs() << format(fmt.str().c_str(), std::string("*COM*").c_str(),
*CommonSizeOrErr, static_cast<uint64_t>(0));
} else {
error(CommonSizeOrErr.takeError(), Obj->getFileName());
return;
}
}
// Print total.
fmtbuf.clear();
fmt << "%-" << max_name_len << "s "
<< "%#" << max_size_len << radix_fmt << "\n";
outs() << format(fmt.str().c_str(), static_cast<const char *>("Total"),
total)
<< "\n\n";
} else {
// The Berkeley format does not display individual section sizes. It
// displays the cumulative size for each section type.
uint64_t total_text = 0;
uint64_t total_data = 0;
uint64_t total_bss = 0;
// Make one pass over the section table to calculate sizes.
for (const SectionRef &Section : Obj->sections()) {
uint64_t size = Section.getSize();
bool isText = Section.isBerkeleyText();
bool isData = Section.isBerkeleyData();
bool isBSS = Section.isBSS();
if (isText)
total_text += size;
else if (isData)
total_data += size;
else if (isBSS)
total_bss += size;
}
if (ELFCommons) {
if (Expected<uint64_t> CommonSizeOrErr = getCommonSize(Obj))
total_bss += *CommonSizeOrErr;
else {
error(CommonSizeOrErr.takeError(), Obj->getFileName());
return;
}
}
total = total_text + total_data + total_bss;
if (TotalSizes) {
TotalObjectText += total_text;
TotalObjectData += total_data;
TotalObjectBss += total_bss;
TotalObjectTotal += total;
}
if (!BerkeleyHeaderPrinted) {
outs() << " text\t"
" data\t"
" bss\t"
" "
<< (Radix == octal ? "oct" : "dec")
<< "\t"
" hex\t"
"filename\n";
BerkeleyHeaderPrinted = true;
}
// Print result.
fmt << "%#7" << radix_fmt << "\t"
<< "%#7" << radix_fmt << "\t"
<< "%#7" << radix_fmt << "\t";
outs() << format(fmt.str().c_str(), total_text, total_data, total_bss);
fmtbuf.clear();
fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << "\t"
<< "%7" PRIx64 "\t";
outs() << format(fmt.str().c_str(), total, total);
}
}
/// Checks to see if the @p O ObjectFile is a Mach-O file and if it is and there
/// is a list of architecture flags specified then check to make sure this
/// Mach-O file is one of those architectures or all architectures was
/// specificed. If not then an error is generated and this routine returns
/// false. Else it returns true.
static bool checkMachOAndArchFlags(ObjectFile *O, StringRef Filename) {
auto *MachO = dyn_cast<MachOObjectFile>(O);
if (!MachO || ArchAll || ArchFlags.empty())
return true;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArchTriple(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArchTriple(H.cputype, H.cpusubtype);
}
if (!is_contained(ArchFlags, T.getArchName())) {
error("no architecture specified", Filename);
return false;
}
return true;
}
/// Print the section sizes for @p file. If @p file is an archive, print the
/// section sizes for each archive member.
static void printFileSectionSizes(StringRef file) {
// Attempt to open the binary.
Expected<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
if (!BinaryOrErr) {
error(BinaryOrErr.takeError(), file);
return;
}
Binary &Bin = *BinaryOrErr.get().getBinary();
if (Archive *a = dyn_cast<Archive>(&Bin)) {
// This is an archive. Iterate over each member and display its sizes.
Error Err = Error::success();
for (auto &C : a->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(ChildOrErr.takeError()))
error(std::move(E), a->getFileName(), C);
continue;
}
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (!checkMachOAndArchFlags(o, file))
return;
if (OutputFormat == sysv)
outs() << o->getFileName() << " (ex " << a->getFileName() << "):\n";
else if (MachO && OutputFormat == darwin)
outs() << a->getFileName() << "(" << o->getFileName() << "):\n";
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << a->getFileName() << "(" << o->getFileName() << ")\n";
else
outs() << o->getFileName() << " (ex " << a->getFileName() << ")\n";
}
}
}
if (Err)
error(std::move(Err), a->getFileName());
} else if (MachOUniversalBinary *UB =
dyn_cast<MachOUniversalBinary>(&Bin)) {
// If we have a list of architecture flags specified dump only those.
if (!ArchAll && !ArchFlags.empty()) {
// Look for a slice in the universal binary that matches each ArchFlag.
bool ArchFound;
for (unsigned i = 0; i < ArchFlags.size(); ++i) {
ArchFound = false;
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
if (ArchFlags[i] == I->getArchFlagName()) {
ArchFound = true;
Expected<std::unique_ptr<ObjectFile>> UO = I->getAsObjectFile();
if (UO) {
if (ObjectFile *o = dyn_cast<ObjectFile>(&*UO.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
else if (MachO && OutputFormat == darwin) {
if (MoreThanOneFile || ArchFlags.size() > 1)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << "): \n";
}
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || MoreThanOneFile || ArchFlags.size() > 1)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << ")";
outs() << "\n";
}
}
} else if (auto E = isNotObjectErrorInvalidFileType(
UO.takeError())) {
error(std::move(E), file, ArchFlags.size() > 1 ?
StringRef(I->getArchFlagName()) : StringRef());
return;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &UA = *AOrErr;
// This is an archive. Iterate over each member and display its
// sizes.
Error Err = Error::success();
for (auto &C : UA->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(
ChildOrErr.takeError()))
error(std::move(E), UA->getFileName(), C,
ArchFlags.size() > 1 ?
StringRef(I->getArchFlagName()) : StringRef());
continue;
}
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< "):\n";
else if (MachO && OutputFormat == darwin)
outs() << UA->getFileName() << "(" << o->getFileName()
<< ")"
<< " (for architecture " << I->getArchFlagName()
<< "):\n";
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO) {
outs() << UA->getFileName() << "(" << o->getFileName()
<< ")";
if (ArchFlags.size() > 1)
outs() << " (for architecture " << I->getArchFlagName()
<< ")";
outs() << "\n";
} else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
if (Err)
error(std::move(Err), UA->getFileName());
} else {
consumeError(AOrErr.takeError());
error("mach-o universal file for architecture " +
StringRef(I->getArchFlagName()) +
" is not a mach-o file or an archive file",
file);
}
}
}
if (!ArchFound) {
error("file does not contain architecture " + ArchFlags[i], file);
return;
}
}
return;
}
// No architecture flags were specified so if this contains a slice that
// matches the host architecture dump only that.
if (!ArchAll) {
StringRef HostArchName = MachOObjectFile::getHostArch().getArchName();
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
if (HostArchName == I->getArchFlagName()) {
Expected<std::unique_ptr<ObjectFile>> UO = I->getAsObjectFile();
if (UO) {
if (ObjectFile *o = dyn_cast<ObjectFile>(&*UO.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
else if (MachO && OutputFormat == darwin) {
if (MoreThanOneFile)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << "):\n";
}
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || MoreThanOneFile)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << ")";
outs() << "\n";
}
}
} else if (auto E = isNotObjectErrorInvalidFileType(UO.takeError())) {
error(std::move(E), file);
return;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &UA = *AOrErr;
// This is an archive. Iterate over each member and display its
// sizes.
Error Err = Error::success();
for (auto &C : UA->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(
ChildOrErr.takeError()))
error(std::move(E), UA->getFileName(), C);
continue;
}
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< "):\n";
else if (MachO && OutputFormat == darwin)
outs() << UA->getFileName() << "(" << o->getFileName() << ")"
<< " (for architecture " << I->getArchFlagName()
<< "):\n";
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << UA->getFileName() << "(" << o->getFileName()
<< ")\n";
else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
if (Err)
error(std::move(Err), UA->getFileName());
} else {
consumeError(AOrErr.takeError());
error("mach-o universal file for architecture " +
StringRef(I->getArchFlagName()) +
" is not a mach-o file or an archive file",
file);
}
return;
}
}
}
// Either all architectures have been specified or none have been specified
// and this does not contain the host architecture so dump all the slices.
bool MoreThanOneArch = UB->getNumberOfObjects() > 1;
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
Expected<std::unique_ptr<ObjectFile>> UO = I->getAsObjectFile();
if (UO) {
if (ObjectFile *o = dyn_cast<ObjectFile>(&*UO.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
else if (MachO && OutputFormat == darwin) {
if (MoreThanOneFile || MoreThanOneArch)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << "):";
outs() << "\n";
}
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || MoreThanOneFile || MoreThanOneArch)
outs() << o->getFileName() << " (for architecture "
<< I->getArchFlagName() << ")";
outs() << "\n";
}
}
} else if (auto E = isNotObjectErrorInvalidFileType(UO.takeError())) {
error(std::move(E), file, MoreThanOneArch ?
StringRef(I->getArchFlagName()) : StringRef());
return;
} else if (Expected<std::unique_ptr<Archive>> AOrErr =
I->getAsArchive()) {
std::unique_ptr<Archive> &UA = *AOrErr;
// This is an archive. Iterate over each member and display its sizes.
Error Err = Error::success();
for (auto &C : UA->children(Err)) {
Expected<std::unique_ptr<Binary>> ChildOrErr = C.getAsBinary();
if (!ChildOrErr) {
if (auto E = isNotObjectErrorInvalidFileType(
ChildOrErr.takeError()))
error(std::move(E), UA->getFileName(), C, MoreThanOneArch ?
StringRef(I->getArchFlagName()) : StringRef());
continue;
}
if (ObjectFile *o = dyn_cast<ObjectFile>(&*ChildOrErr.get())) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< "):\n";
else if (MachO && OutputFormat == darwin)
outs() << UA->getFileName() << "(" << o->getFileName() << ")"
<< " (for architecture " << I->getArchFlagName() << "):\n";
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << UA->getFileName() << "(" << o->getFileName() << ")"
<< " (for architecture " << I->getArchFlagName()
<< ")\n";
else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
if (Err)
error(std::move(Err), UA->getFileName());
} else {
consumeError(AOrErr.takeError());
error("mach-o universal file for architecture " +
StringRef(I->getArchFlagName()) +
" is not a mach-o file or an archive file",
file);
}
}
} else if (ObjectFile *o = dyn_cast<ObjectFile>(&Bin)) {
if (!checkMachOAndArchFlags(o, file))
return;
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
else if (MachO && OutputFormat == darwin && MoreThanOneFile)
outs() << o->getFileName() << ":\n";
printObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || MoreThanOneFile)
outs() << o->getFileName();
outs() << "\n";
}
} else {
error("unsupported file type", file);
}
}
static void printBerkeleyTotals() {
std::string fmtbuf;
raw_string_ostream fmt(fmtbuf);
const char *radix_fmt = getRadixFmt();
fmt << "%#7" << radix_fmt << "\t"
<< "%#7" << radix_fmt << "\t"
<< "%#7" << radix_fmt << "\t";
outs() << format(fmt.str().c_str(), TotalObjectText, TotalObjectData,
TotalObjectBss);
fmtbuf.clear();
fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << "\t"
<< "%7" PRIx64 "\t";
outs() << format(fmt.str().c_str(), TotalObjectTotal, TotalObjectTotal)
<< "(TOTALS)\n";
}
int main(int argc, char **argv) {
InitLLVM X(argc, argv);
BumpPtrAllocator A;
StringSaver Saver(A);
SizeOptTable Tbl;
ToolName = argv[0];
opt::InputArgList Args = Tbl.parseArgs(argc, argv, OPT_UNKNOWN, Saver,
[&](StringRef Msg) { error(Msg); });
if (Args.hasArg(OPT_help)) {
Tbl.printHelp(
outs(),
(Twine(ToolName) + " [options] <input object files>").str().c_str(),
"LLVM object size dumper");
// TODO Replace this with OptTable API once it adds extrahelp support.
outs() << "\nPass @FILE as argument to read options from FILE.\n";
return 0;
}
if (Args.hasArg(OPT_version)) {
outs() << ToolName << '\n';
cl::PrintVersionMessage();
return 0;
}
ELFCommons = Args.hasArg(OPT_common);
DarwinLongFormat = Args.hasArg(OPT_l);
TotalSizes = Args.hasArg(OPT_totals);
StringRef V = Args.getLastArgValue(OPT_format_EQ, "berkeley");
if (V == "berkeley")
OutputFormat = berkeley;
else if (V == "darwin")
OutputFormat = darwin;
else if (V == "sysv")
OutputFormat = sysv;
else
error("--format value should be one of: 'berkeley', 'darwin', 'sysv'");
V = Args.getLastArgValue(OPT_radix_EQ, "10");
if (V == "8")
Radix = RadixTy::octal;
else if (V == "10")
Radix = RadixTy::decimal;
else if (V == "16")
Radix = RadixTy::hexadecimal;
else
error("--radix value should be one of: 8, 10, 16 ");
for (const auto *A : Args.filtered(OPT_arch_EQ)) {
SmallVector<StringRef, 2> Values;
llvm::SplitString(A->getValue(), Values, ",");
for (StringRef V : Values) {
if (V == "all")
ArchAll = true;
else if (MachOObjectFile::isValidArch(V))
ArchFlags.push_back(V);
else {
outs() << ToolName << ": for the -arch option: Unknown architecture "
<< "named '" << V << "'";
return 1;
}
}
}
InputFilenames = Args.getAllArgValues(OPT_INPUT);
if (InputFilenames.empty())
InputFilenames.push_back("a.out");
MoreThanOneFile = InputFilenames.size() > 1;
llvm::for_each(InputFilenames, printFileSectionSizes);
if (OutputFormat == berkeley && TotalSizes)
printBerkeleyTotals();
if (HadError)
return 1;
}
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