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Teach llvm-size to know about Mach-O universal files (aka fat files) and

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fat files containing archives.

Also fix a bug in MachOUniversalBinary::ObjectForArch::ObjectForArch()
where it needed a >= when comparing the Index with the number of
objects in a fat file.  As the index starts at 0.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@211230 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Kevin Enderby 2014-06-18 22:04:40 +00:00
parent ce09bda96e
commit fb2b9fb894
3 changed files with 65 additions and 1 deletions
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2
lib/Object/MachOUniversal.cpp
View File

@ -53,7 +53,7 @@ static T getUniversalBinaryStruct(const char *Ptr) {
MachOUniversalBinary::ObjectForArch::ObjectForArch(
const MachOUniversalBinary *Parent, uint32_t Index)
: Parent(Parent), Index(Index) {
if (!Parent || Index > Parent->getNumberOfObjects()) {
if (!Parent || Index >= Parent->getNumberOfObjects()) {
clear();
} else {
// Parse object header.

12
test/Object/size-trivial-macho.test
View File

@ -10,6 +10,10 @@ RUN: llvm-size -format darwin %p/Inputs/macho-archive-x86_64.a \
RUN: | FileCheck %s -check-prefix mAR
RUN: llvm-size -format darwin -x -l %p/Inputs/hello-world.macho-x86_64 \
RUN: | FileCheck %s -check-prefix mxl
RUN: llvm-size %p/Inputs/macho-universal.x86_64.i386 \
RUN: | FileCheck %s -check-prefix u
RUN: llvm-size %p/Inputs/macho-universal-archive.x86_64.i386 \
RUN: | FileCheck %s -check-prefix uAR
A: section size addr
A: __text 12 0
@ -65,3 +69,11 @@ mxl: Section __la_symbol_ptr: 0x8 (addr 0x100001010 offset 4112)
mxl: total 0x18
mxl: Segment __LINKEDIT: 0x1000 (vmaddr 0x100002000 fileoff 8192)
mxl: total 0x100003000
u: __TEXT __DATA __OBJC others dec hex
u: 4096 0 0 4294971392 4294975488 100002000 {{.*}}/macho-universal.x86_64.i386:x86_64
u: 4096 0 0 8192 12288 3000 {{.*}}/macho-universal.x86_64.i386:i386
uAR: __TEXT __DATA __OBJC others dec hex
uAR: 136 0 0 32 168 a8 {{.*}}/macho-universal-archive.x86_64.i386:x86_64(hello.o)
uAR: 5 4 0 0 9 9 {{.*}}/macho-universal-archive.x86_64.i386:i386(foo.o)

52
tools/llvm-size/llvm-size.cpp
View File

@ -17,6 +17,7 @@
#include "llvm/Object/Archive.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Object/MachO.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Support/Casting.h"
#include "llvm/Support/CommandLine.h"
#include "llvm/Support/FileSystem.h"
@ -456,6 +457,57 @@ static void PrintFileSectionSizes(StringRef file) {
}
}
}
} else if (MachOUniversalBinary *UB =
dyn_cast<MachOUniversalBinary>(binary.get())) {
// This is a Mach-O universal binary. Iterate over each object and
// display its sizes.
bool moreThanOneArch = UB->getNumberOfObjects() > 1;
for (MachOUniversalBinary::object_iterator I = UB->begin_objects(),
E = UB->end_objects();
I != E; ++I) {
std::unique_ptr<ObjectFile> UO;
std::unique_ptr<Archive> UA;
if (!I->getAsObjectFile(UO)) {
if (ObjectFile *o = dyn_cast<ObjectFile>(&*UO.get())) {
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
MachOObjectFile *MachO = dyn_cast<MachOObjectFile>(o);
if (!MachO || moreThanOneFile || moreThanOneArch)
outs() << o->getFileName();
outs() << "\n";
}
}
}
else if (!I->getAsArchive(UA)) {
// 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) {
ErrorOr<std::unique_ptr<Binary>> ChildOrErr = i->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() << "):\n";
PrintObjectSectionSizes(o);
if (OutputFormat == berkeley) {
if (MachO)
outs() << UA->getFileName() << "(" << o->getFileName() << ")\n";
else
outs() << o->getFileName() << " (ex " << UA->getFileName()
<< ")\n";
}
}
}
}
}
} else if (ObjectFile *o = dyn_cast<ObjectFile>(binary.get())) {
if (OutputFormat == sysv)
outs() << o->getFileName() << " :\n";