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llvm-mirror/tools/llvm-size/llvm-size.cpp
Hemant Kulkarni 944f75148f Correct size calculations for ELF files 
llvm-svn: 259578
2016-02-02 21:41:49 +00:00

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29 KiB
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//===-- llvm-size.cpp - Print the size of each object section ---*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// 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/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/ELF.h"
#include "llvm/Support/FileSystem.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/ManagedStatic.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/PrettyStackTrace.h"
#include "llvm/Support/Signals.h"
#include "llvm/Support/raw_ostream.h"
#include <algorithm>
#include <string>
#include <system_error>
using namespace llvm;
using namespace object;
enum OutputFormatTy { berkeley, sysv, darwin };
static cl::opt<OutputFormatTy>
OutputFormat("format", cl::desc("Specify output format"),
cl::values(clEnumVal(sysv, "System V format"),
clEnumVal(berkeley, "Berkeley format"),
clEnumVal(darwin, "Darwin -m format"), clEnumValEnd),
cl::init(berkeley));
static cl::opt<OutputFormatTy> OutputFormatShort(
cl::desc("Specify output format"),
cl::values(clEnumValN(sysv, "A", "System V format"),
clEnumValN(berkeley, "B", "Berkeley format"),
clEnumValN(darwin, "m", "Darwin -m format"), clEnumValEnd),
cl::init(berkeley));
static bool berkeleyHeaderPrinted = false;
static bool moreThanOneFile = false;
cl::opt<bool>
DarwinLongFormat("l", cl::desc("When format is darwin, use long format "
"to include addresses and offsets."));
static cl::list<std::string>
ArchFlags("arch", cl::desc("architecture(s) from a Mach-O file to dump"),
cl::ZeroOrMore);
bool ArchAll = false;
enum RadixTy { octal = 8, decimal = 10, hexadecimal = 16 };
static cl::opt<unsigned int>
Radix("-radix", cl::desc("Print size in radix. Only 8, 10, and 16 are valid"),
cl::init(decimal));
static cl::opt<RadixTy>
RadixShort(cl::desc("Print size in radix:"),
cl::values(clEnumValN(octal, "o", "Print size in octal"),
clEnumValN(decimal, "d", "Print size in decimal"),
clEnumValN(hexadecimal, "x", "Print size in hexadecimal"),
clEnumValEnd),
cl::init(decimal));
static cl::list<std::string>
InputFilenames(cl::Positional, cl::desc("<input files>"), cl::ZeroOrMore);
static std::string ToolName;
/// @brief If ec is not success, print the error and return true.
static bool error(std::error_code ec) {
if (!ec)
return false;
errs() << ToolName << ": error reading file: " << ec.message() << ".\n";
errs().flush();
return true;
}
/// @brief 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();
}
/// @brief 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;
}
/// @brief Remove unneeded ELF sections from calculation
static bool ConsiderForSize(ObjectFile *Obj, SectionRef Section) {
if (Obj->isELF()) {
switch (static_cast<ELFSectionRef>(Section).getType()) {
case ELF::SHT_NULL:
case ELF::SHT_SYMTAB:
case ELF::SHT_STRTAB:
case ELF::SHT_REL:
case ELF::SHT_RELA:
return false;
}
}
return true;
}
/// @brief 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);
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 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) << ": ";
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";
}
}
outs() << "total " << format(fmt.str().c_str(), total) << "\n";
}
/// @brief 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";
}
/// @brief 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;
StringRef name;
if (error(Section.getName(name)))
return;
uint64_t addr = Section.getAddress();
max_name_len = std::max(max_name_len, name.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;
StringRef name;
if (error(Section.getName(name)))
return;
uint64_t size = Section.getSize();
uint64_t addr = Section.getAddress();
std::string namestr = name;
outs() << format(fmt.str().c_str(), namestr.c_str(), size, addr);
}
// 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);
} 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.isText();
bool isData = Section.isData();
bool isBSS = Section.isBSS();
if (isText)
total_text += size;
else if (isData)
total_data += size;
else if (isBSS)
total_bss += size;
}
total = total_text + total_data + total_bss;
if (!berkeleyHeaderPrinted) {
outs() << " text data bss "
<< (Radix == octal ? "oct" : "dec") << " hex filename\n";
berkeleyHeaderPrinted = true;
}
// Print result.
fmt << "%#7" << radix_fmt << " "
<< "%#7" << radix_fmt << " "
<< "%#7" << radix_fmt << " ";
outs() << format(fmt.str().c_str(), total_text, total_data, total_bss);
fmtbuf.clear();
fmt << "%7" << (Radix == octal ? PRIo64 : PRIu64) << " "
<< "%7" PRIx64 " ";
outs() << format(fmt.str().c_str(), total, total);
}
}
/// @brief 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 file) {
if (isa<MachOObjectFile>(o) && !ArchAll && ArchFlags.size() != 0) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
bool ArchFound = false;
MachO::mach_header H;
MachO::mach_header_64 H_64;
Triple T;
if (MachO->is64Bit()) {
H_64 = MachO->MachOObjectFile::getHeader64();
T = MachOObjectFile::getArch(H_64.cputype, H_64.cpusubtype);
} else {
H = MachO->MachOObjectFile::getHeader();
T = MachOObjectFile::getArch(H.cputype, H.cpusubtype);
}
unsigned i;
for (i = 0; i < ArchFlags.size(); ++i) {
if (ArchFlags[i] == T.getArchName())
ArchFound = true;
break;
}
if (!ArchFound) {
errs() << ToolName << ": file: " << file
<< " does not contain architecture: " << ArchFlags[i] << ".\n";
return false;
}
}
return true;
}
/// @brief 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.
ErrorOr<OwningBinary<Binary>> BinaryOrErr = createBinary(file);
if (std::error_code EC = BinaryOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message() << ".\n";
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.
for (object::Archive::child_iterator i = a->child_begin(),
e = a->child_end();
i != e; ++i) {
if (i->getError()) {
errs() << ToolName << ": " << file << ": " << i->getError().message()
<< ".\n";
exit(1);
}
auto &c = i->get();
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = c.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message() << ".\n";
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";
}
}
}
} else if (MachOUniversalBinary *UB =
dyn_cast<MachOUniversalBinary>(&Bin)) {
// If we have a list of architecture flags specified dump only those.
if (!ArchAll && ArchFlags.size() != 0) {
// 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->getArchTypeName()) {
ArchFound = true;
ErrorOr<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->getArchTypeName() << "): \n";
}
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || moreThanOneFile || ArchFlags.size() > 1)
outs() << o->getFileName() << " (for architecture "
<< I->getArchTypeName() << ")";
outs() << "\n";
}
}
} else if (ErrorOr<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.
for (object::Archive::child_iterator i = UA->child_begin(),
e = UA->child_end();
i != e; ++i) {
if (std::error_code EC = i->getError()) {
errs() << ToolName << ": " << file << ": " << EC.message()
<< ".\n";
exit(1);
}
auto &c = i->get();
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = c.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message()
<< ".\n";
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->getArchTypeName()
<< "):\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO) {
outs() << UA->getFileName() << "(" << o->getFileName()
<< ")";
if (ArchFlags.size() > 1)
outs() << " (for architecture " << I->getArchTypeName()
<< ")";
outs() << "\n";
} else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
}
}
}
if (!ArchFound) {
errs() << ToolName << ": file: " << file
<< " does not contain architecture" << ArchFlags[i] << ".\n";
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->getArchTypeName()) {
ErrorOr<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->getArchTypeName() << "):\n";
}
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || moreThanOneFile)
outs() << o->getFileName() << " (for architecture "
<< I->getArchTypeName() << ")";
outs() << "\n";
}
}
} else if (ErrorOr<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.
for (object::Archive::child_iterator i = UA->child_begin(),
e = UA->child_end();
i != e; ++i) {
if (std::error_code EC = i->getError()) {
errs() << ToolName << ": " << file << ": " << EC.message()
<< ".\n";
exit(1);
}
auto &c = i->get();
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = c.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message()
<< ".\n";
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->getArchTypeName()
<< "):\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << UA->getFileName() << "(" << o->getFileName()
<< ")\n";
else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
}
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) {
ErrorOr<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->getArchTypeName() << "):";
outs() << "\n";
}
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (!MachO || moreThanOneFile || moreThanOneArch)
outs() << o->getFileName() << " (for architecture "
<< I->getArchTypeName() << ")";
outs() << "\n";
}
}
} else if (ErrorOr<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.
for (object::Archive::child_iterator i = UA->child_begin(),
e = UA->child_end();
i != e; ++i) {
if (std::error_code EC = i->getError()) {
errs() << ToolName << ": " << file << ": " << EC.message() << ".\n";
exit(1);
}
auto &c = i->get();
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = c.getAsBinary();
if (std::error_code EC = ChildOrErr.getError()) {
errs() << ToolName << ": " << file << ": " << EC.message() << ".\n";
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->getArchTypeName() << "):\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << UA->getFileName() << "(" << o->getFileName() << ")"
<< " (for architecture " << I->getArchTypeName()
<< ")\n";
else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
}
}
} else if (ObjectFile *o = dyn_cast<ObjectFile>(&Bin)) {
if (!checkMachOAndArchFlags(o, file))
return;
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (!MachO || moreThanOneFile)
outs() << o->getFileName();
outs() << "\n";
}
} else {
errs() << ToolName << ": " << file << ": "
<< "Unrecognized file type.\n";
}
// System V adds an extra newline at the end of each file.
if (OutputFormat == sysv)
outs() << "\n";
}
int main(int argc, char **argv) {
// Print a stack trace if we signal out.
sys::PrintStackTraceOnErrorSignal();
PrettyStackTraceProgram X(argc, argv);
llvm_shutdown_obj Y; // Call llvm_shutdown() on exit.
cl::ParseCommandLineOptions(argc, argv, "llvm object size dumper\n");
ToolName = argv[0];
if (OutputFormatShort.getNumOccurrences())
OutputFormat = static_cast<OutputFormatTy>(OutputFormatShort);
if (RadixShort.getNumOccurrences())
Radix = RadixShort;
for (unsigned i = 0; i < ArchFlags.size(); ++i) {
if (ArchFlags[i] == "all") {
ArchAll = true;
} else {
if (!MachOObjectFile::isValidArch(ArchFlags[i])) {
outs() << ToolName << ": for the -arch option: Unknown architecture "
<< "named '" << ArchFlags[i] << "'";
return 1;
}
}
}
if (InputFilenames.size() == 0)
InputFilenames.push_back("a.out");
moreThanOneFile = InputFilenames.size() > 1;
std::for_each(InputFilenames.begin(), InputFilenames.end(),
PrintFileSectionSizes);
return 0;
}
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