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Update dump_syms to correctly filter on cpu subtype.

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Right now, if an archive contain multiple executable for the same CPU but with different subtype, there is no way to dump any but the first one.
Review URL: https://breakpad.appspot.com/476002

git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@1061 4c0a9323-5329-0410-9bdc-e9ce6186880e
This commit is contained in:
qsr@chromium.org 2012-10-04 13:26:47 +00:00
parent a1da3a504b
commit 872d464500
9 changed files with 95 additions and 65 deletions
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8
src/client/mac/handler/minidump_generator.cc
View file

@ -31,6 +31,7 @@
#include <cstdio>
#include <mach/host_info.h>
#include <mach/machine.h>
#include <mach/vm_statistics.h>
#include <mach-o/dyld.h>
#include <mach-o/loader.h>
@ -1304,14 +1305,15 @@ bool MinidumpGenerator::WriteCVRecord(MDRawModule *module, int cpu_type,
MacFileUtilities::MachoID macho(module_path,
reinterpret_cast<void *>(module->base_of_image),
static_cast<size_t>(module->size_of_image));
result = macho.UUIDCommand(cpu_type, identifier);
result = macho.UUIDCommand(cpu_type, CPU_SUBTYPE_MULTIPLE, identifier);
if (!result)
result = macho.MD5(cpu_type, identifier);
result = macho.MD5(cpu_type, CPU_SUBTYPE_MULTIPLE, identifier);
}
if (!result) {
FileID file_id(module_path);
result = file_id.MachoIdentifier(cpu_type, identifier);
result = file_id.MachoIdentifier(cpu_type, CPU_SUBTYPE_MULTIPLE,
identifier);
}
if (result) {

1
src/common/mac/arch_utilities.cc
View file

@ -53,6 +53,7 @@ const NXArchInfo* ArchInfo_armv7s() {
CPU_SUBTYPE_ARM_V7);
armv7s->name = "armv7s";
armv7s->cpusubtype = CPU_SUBTYPE_ARM_V7S;
armv7s->description = "arm v7s";
return armv7s;
}

3
src/common/mac/dump_syms.mm
View file

@ -204,7 +204,8 @@ string DumpSymbols::Identifier() {
FileID file_id([object_filename_ fileSystemRepresentation]);
unsigned char identifier_bytes[16];
cpu_type_t cpu_type = selected_object_file_->cputype;
if (!file_id.MachoIdentifier(cpu_type, identifier_bytes)) {
cpu_subtype_t cpu_subtype = selected_object_file_->cpusubtype;
if (!file_id.MachoIdentifier(cpu_type, cpu_subtype, identifier_bytes)) {
fprintf(stderr, "Unable to calculate UUID of mach-o binary %s!\n",
[object_filename_ fileSystemRepresentation]);
return "";

8
src/common/mac/file_id.cc
View file

@ -70,13 +70,15 @@ bool FileID::FileIdentifier(unsigned char identifier[16]) {
return true;
}
bool FileID::MachoIdentifier(int cpu_type, unsigned char identifier[16]) {
bool FileID::MachoIdentifier(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]) {
MachoID macho(path_);
if (macho.UUIDCommand(cpu_type, identifier))
if (macho.UUIDCommand(cpu_type, cpu_subtype, identifier))
return true;
return macho.MD5(cpu_type, identifier);
return macho.MD5(cpu_type, cpu_subtype, identifier);
}
// static

17
src/common/mac/file_id.h
View file

@ -35,6 +35,7 @@
#define COMMON_MAC_FILE_ID_H__
#include <limits.h>
#include <mach/machine.h>
namespace google_breakpad {
@ -50,15 +51,18 @@ class FileID {
bool FileIdentifier(unsigned char identifier[16]);
// Treat the file as a mach-o file that will contain one or more archicture.
// Accepted values for |cpu_type| (e.g., CPU_TYPE_X86 or CPU_TYPE_POWERPC)
// are listed in /usr/include/mach/machine.h.
// If |cpu_type| is 0, then the native cpu type is used.
// Returns false if opening the file failed or if the |cpu_type| is not
// present in the file.
// Accepted values for |cpu_type| and |cpu_subtype| (e.g., CPU_TYPE_X86 or
// CPU_TYPE_POWERPC) are listed in /usr/include/mach/machine.h.
// If |cpu_type| is 0, then the native cpu type is used. If |cpu_subtype| is
// CPU_SUBTYPE_MULTIPLE, the match is only done on |cpu_type|.
// Returns false if opening the file failed or if the |cpu_type|/|cpu_subtype|
// is not present in the file.
// Return the unique identifier in |identifier|.
// The current implementation will look for the (in order of priority):
// LC_UUID, LC_ID_DYLIB, or MD5 hash of the given |cpu_type|.
bool MachoIdentifier(int cpu_type, unsigned char identifier[16]);
bool MachoIdentifier(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]);
// Convert the |identifier| data to a NULL terminated string. The string will
// be formatted as a UUID (e.g., 22F065BB-FC9C-49F7-80FE-26A7CEBD7BCE).
@ -75,4 +79,3 @@ class FileID {
} // namespace google_breakpad
#endif // COMMON_MAC_FILE_ID_H__

27
src/common/mac/macho_id.cc
View file

@ -153,10 +153,12 @@ void MachoID::Update(MachoWalker *walker, off_t offset, size_t size) {
}
}
bool MachoID::UUIDCommand(int cpu_type, unsigned char bytes[16]) {
bool MachoID::UUIDCommand(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char bytes[16]) {
struct breakpad_uuid_command uuid_cmd;
uuid_cmd.cmd = 0;
if (!WalkHeader(cpu_type, UUIDWalkerCB, &uuid_cmd))
if (!WalkHeader(cpu_type, cpu_subtype, UUIDWalkerCB, &uuid_cmd))
return false;
// If we found the command, we'll have initialized the uuid_command
@ -169,10 +171,12 @@ bool MachoID::UUIDCommand(int cpu_type, unsigned char bytes[16]) {
return false;
}
bool MachoID::IDCommand(int cpu_type, unsigned char identifier[16]) {
bool MachoID::IDCommand(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]) {
struct dylib_command dylib_cmd;
dylib_cmd.cmd = 0;
if (!WalkHeader(cpu_type, IDWalkerCB, &dylib_cmd))
if (!WalkHeader(cpu_type, cpu_subtype, IDWalkerCB, &dylib_cmd))
return false;
// If we found the command, we'll have initialized the dylib_command
@ -210,37 +214,38 @@ bool MachoID::IDCommand(int cpu_type, unsigned char identifier[16]) {
return false;
}
uint32_t MachoID::Adler32(int cpu_type) {
uint32_t MachoID::Adler32(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) {
update_function_ = &MachoID::UpdateCRC;
crc_ = 0;
if (!WalkHeader(cpu_type, WalkerCB, this))
if (!WalkHeader(cpu_type, cpu_subtype, WalkerCB, this))
return 0;
return crc_;
}
bool MachoID::MD5(int cpu_type, unsigned char identifier[16]) {
bool MachoID::MD5(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype, unsigned char identifier[16]) {
update_function_ = &MachoID::UpdateMD5;
MD5Init(&md5_context_);
if (!WalkHeader(cpu_type, WalkerCB, this))
if (!WalkHeader(cpu_type, cpu_subtype, WalkerCB, this))
return false;
MD5Final(identifier, &md5_context_);
return true;
}
bool MachoID::WalkHeader(int cpu_type,
bool MachoID::WalkHeader(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
MachoWalker::LoadCommandCallback callback,
void *context) {
if (memory_) {
MachoWalker walker(memory_, memory_size_, callback, context);
return walker.WalkHeader(cpu_type);
return walker.WalkHeader(cpu_type, cpu_subtype);
} else {
MachoWalker walker(path_, callback, context);
return walker.WalkHeader(cpu_type);
return walker.WalkHeader(cpu_type, cpu_subtype);
}
}

33
src/common/mac/macho_id.h
View file

@ -35,6 +35,7 @@
#define COMMON_MAC_MACHO_ID_H__
#include <limits.h>
#include <mach/machine.h>
#include <mach-o/loader.h>
#include "common/mac/macho_walker.h"
@ -48,22 +49,32 @@ class MachoID {
MachoID(const char *path, void *memory, size_t size);
~MachoID();
// For the given |cpu_type|, return a UUID from the LC_UUID command.
// For the given |cpu_type| and |cpu_subtype|, return a UUID from the LC_UUID
// command.
// Return false if there isn't a LC_UUID command.
bool UUIDCommand(int cpu_type, unsigned char identifier[16]);
bool UUIDCommand(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]);
// For the given |cpu_type|, return a UUID from the LC_ID_DYLIB command.
// For the given |cpu_type| and |cpu_subtype|, return a UUID from the
// LC_ID_DYLIB command.
// Return false if there isn't a LC_ID_DYLIB command.
bool IDCommand(int cpu_type, unsigned char identifier[16]);
bool IDCommand(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]);
// For the given |cpu_type|, return the Adler32 CRC for the mach-o data
// segment(s).
// For the given |cpu_type| and |cpu_subtype|, return the Adler32 CRC for the
// mach-o data segment(s).
// Return 0 on error (e.g., if the file is not a mach-o file)
uint32_t Adler32(int cpu_type);
uint32_t Adler32(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype);
// For the given |cpu_type|, return the MD5 for the mach-o data segment(s).
// For the given |cpu_type|, and |cpu_subtype| return the MD5 for the mach-o
// data segment(s).
// Return true on success, false otherwise
bool MD5(int cpu_type, unsigned char identifier[16]);
bool MD5(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
unsigned char identifier[16]);
private:
// Signature of class member function to be called with data read from file
@ -81,8 +92,8 @@ class MachoID {
void Update(MachoWalker *walker, off_t offset, size_t size);
// Factory for the MachoWalker
bool WalkHeader(int cpu_type, MachoWalker::LoadCommandCallback callback,
void *context);
bool WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype,
MachoWalker::LoadCommandCallback callback, void *context);
// The callback from the MachoWalker for CRC and MD5
static bool WalkerCB(MachoWalker *walker, load_command *cmd, off_t offset,

37
src/common/mac/macho_walker.cc
View file

@ -79,21 +79,18 @@ MachoWalker::~MachoWalker() {
close(file_);
}
int MachoWalker::ValidateCPUType(int cpu_type) {
// If the user didn't specify, use the local architecture.
bool MachoWalker::WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) {
cpu_type_t valid_cpu_type = cpu_type;
cpu_subtype_t valid_cpu_subtype = cpu_subtype;
// if |cpu_type| is 0, use the native cpu type.
if (cpu_type == 0) {
const NXArchInfo *arch = NXGetLocalArchInfo();
assert(arch);
cpu_type = arch->cputype;
valid_cpu_type = arch->cputype;
valid_cpu_subtype = CPU_SUBTYPE_MULTIPLE;
}
return cpu_type;
}
bool MachoWalker::WalkHeader(int cpu_type) {
int valid_cpu_type = ValidateCPUType(cpu_type);
off_t offset;
if (FindHeader(valid_cpu_type, offset)) {
if (FindHeader(valid_cpu_type, valid_cpu_subtype, offset)) {
if (cpu_type & CPU_ARCH_ABI64)
return WalkHeader64AtOffset(offset);
@ -131,8 +128,9 @@ bool MachoWalker::CurrentHeader(struct mach_header_64 *header, off_t *offset) {
return false;
}
bool MachoWalker::FindHeader(int cpu_type, off_t &offset) {
int valid_cpu_type = ValidateCPUType(cpu_type);
bool MachoWalker::FindHeader(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
off_t &offset) {
// Read the magic bytes that's common amongst all mach-o files
uint32_t magic;
if (!ReadBytes(&magic, sizeof(magic), 0))
@ -153,15 +151,18 @@ bool MachoWalker::FindHeader(int cpu_type, off_t &offset) {
if (!is_fat) {
// If we don't have a fat header, check if the cpu type matches the single
// header
cpu_type_t header_cpu_type;
if (!ReadBytes(&header_cpu_type, sizeof(header_cpu_type), offset))
struct mach_header header;
if (!ReadBytes(&header, sizeof(header), 0))
return false;
if (magic == MH_CIGAM || magic == MH_CIGAM_64)
header_cpu_type = ByteSwap(header_cpu_type);
swap_mach_header(&header, NXHostByteOrder());
if (valid_cpu_type != header_cpu_type)
if (cpu_type != header.cputype ||
(cpu_subtype != CPU_SUBTYPE_MULTIPLE &&
cpu_subtype != header.cpusubtype)) {
return false;
}
offset = 0;
return true;
@ -186,7 +187,9 @@ bool MachoWalker::FindHeader(int cpu_type, off_t &offset) {
if (NXHostByteOrder() != NX_BigEndian)
swap_fat_arch(&arch, 1, NXHostByteOrder());
if (arch.cputype == valid_cpu_type) {
if (arch.cputype == cpu_type &&
(cpu_subtype == CPU_SUBTYPE_MULTIPLE ||
arch.cpusubtype == cpu_subtype)) {
offset = arch.offset;
return true;
}

26
src/common/mac/macho_walker.h
View file

@ -34,6 +34,7 @@
#ifndef COMMON_MAC_MACHO_WALKER_H__
#define COMMON_MAC_MACHO_WALKER_H__
#include <mach/machine.h>
#include <mach-o/loader.h>
#include <sys/types.h>
@ -56,16 +57,14 @@ class MachoWalker {
void *context);
~MachoWalker();
// Begin walking the header for |cpu_type|. If |cpu_type| is 0, then the
// native cpu type is used. Otherwise, accepted values are listed in
// /usr/include/mach/machine.h (e.g., CPU_TYPE_X86 or CPU_TYPE_POWERPC).
// Returns false if opening the file failed or if the |cpu_type| is not
// present in the file.
bool WalkHeader(int cpu_type);
// Locate (if any) the header offset for |cpu_type| and return in |offset|.
// Return true if found, false otherwise.
bool FindHeader(int cpu_type, off_t &offset);
// Begin walking the header for |cpu_type| and |cpu_subtype|. If |cpu_type|
// is 0, then the native cpu type is used. Otherwise, accepted values are
// listed in /usr/include/mach/machine.h (e.g., CPU_TYPE_X86 or
// CPU_TYPE_POWERPC). If |cpu_subtype| is CPU_SUBTYPE_MULTIPLE, the match is
// only done on |cpu_type|.
// Returns false if opening the file failed or if the |cpu_type|/|cpu_subtype|
// is not present in the file.
bool WalkHeader(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype);
// Read |size| bytes from the opened file at |offset| into |buffer|
bool ReadBytes(void *buffer, size_t size, off_t offset);
@ -74,8 +73,11 @@ class MachoWalker {
bool CurrentHeader(struct mach_header_64 *header, off_t *offset);
private:
// Validate the |cpu_type|
int ValidateCPUType(int cpu_type);
// Locate (if any) the header offset for |cpu_type| and return in |offset|.
// Return true if found, false otherwise.
bool FindHeader(cpu_type_t cpu_type,
cpu_subtype_t cpu_subtype,
off_t &offset);
// Process an individual header starting at |offset| from the start of the
// file. Return true if successful, false otherwise.