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upx/src/p_mach.h
Markus F.X.J. Oberhumer 5ed689ceb0 Enter 2009.
2008-12-31 17:07:18 +01:00

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/* p_mach.h --
This file is part of the UPX executable compressor.
Copyright (C) 1996-2009 Markus Franz Xaver Johannes Oberhumer
Copyright (C) 1996-2009 Laszlo Molnar
All Rights Reserved.
UPX and the UCL library are free software; you can redistribute them
and/or modify them under the terms of the GNU General Public License as
published by the Free Software Foundation; either version 2 of
the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; see the file COPYING.
If not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
Markus F.X.J. Oberhumer Laszlo Molnar
<markus@oberhumer.com> <ml1050@users.sourceforge.net>
*/
#ifndef __UPX_P_MACHO_H
#define __UPX_P_MACHO_H
__packed_struct(Mach_fat_header)
BE32 magic;
enum { // note conflict with java bytecode PackLinuxI386
FAT_MAGIC = 0xcafebabe,
FAT_MAGIC_SWAB = 0xbebafeca
};
BE32 nfat_arch; // Number of Mach_fat_arch which follow.
__packed_struct_end()
__packed_struct(Mach_fat_arch)
BE32 cputype;
BE32 cpusubtype;
BE32 offset;
BE32 size;
BE32 align; /* shift count; log base 2 */
__packed_struct_end()
/*************************************************************************
// Mach Mach Object executable; all structures are target-endian
// 'otool' is the Mach analog of 'readelf' (convert executable file to ASCII).
**************************************************************************/
namespace N_Mach {
// integral types
template <class TWord, class TXword, class TAddr, class TOff>
struct MachITypes
{
typedef TWord Word;
typedef TXword Xword;
typedef TAddr Addr;
typedef TOff Off;
};
template <class TMachITypes>
__packed_struct(Mach_header)
typedef typename TMachITypes::Word Word;
Word magic;
Word cputype;
Word cpysubtype;
Word filetype;
Word ncmds;
Word sizeofcmds;
Word flags;
#define WANT_MACH_HEADER_ENUM 1
#include "p_mach_enum.h"
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_header64)
// only difference is padding to 0 mod 8
typedef typename TMachITypes::Word Word;
Word magic;
Word cputype;
Word cpysubtype;
Word filetype;
Word ncmds;
Word sizeofcmds;
Word flags;
Word reserved; // pad to 0 mod 8
#define WANT_MACH_HEADER_ENUM 1
#include "p_mach_enum.h"
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_segment_command)
typedef typename TMachITypes::Word Word;
typedef typename TMachITypes::Addr Addr;
typedef typename TMachITypes::Off Off;
Word cmd;
Word cmdsize;
char segname[16];
Addr vmaddr;
Addr vmsize;
Off fileoff;
Off filesize;
Word maxprot;
Word initprot;
Word nsects;
Word flags;
#define WANT_MACH_SEGMENT_ENUM 1
#include "p_mach_enum.h"
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_section_command)
typedef typename TMachITypes::Word Word;
typedef typename TMachITypes::Addr Addr;
typedef typename TMachITypes::Off Off;
char sectname[16];
char segname[16];
Addr addr; /* memory address */
Addr size; /* size in bytes */
Word offset; /* file offset */ // FIXME: 64 bit?
Word align; /* power of 2 */
Word reloff; /* file offset of relocation entries */
Word nreloc; /* number of relocation entries */
Word flags; /* section type and attributes */
Word reserved1;
Word reserved2;
#define WANT_MACH_SECTION_ENUM 1
#include "p_mach_enum.h"
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_ppc_thread_state)
typedef typename TMachITypes::Addr Addr;
Addr srr0; /* Instruction address register (PC; entry addr) */
Addr srr1; /* Machine state register (supervisor) */
Addr r0, r1, r2, r3, r4, r5, r6, r7;
Addr r8, r9,r10,r11,r12,r13,r14,r15;
Addr r16,r17,r18,r19,r20,r21,r22,r23;
Addr r24,r25,r26,r27,r28,r29,r30,r31;
Addr cr; /* Condition register */ // FIXME: Word?
Addr xer; /* User's integer exception register */
Addr lr; /* Link register */
Addr ctr; /* Count register */
Addr mq; /* MQ register (601 only) */
Addr vrsave; /* Vector Save Register */
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_i386_thread_state)
typedef typename TMachITypes::Word Word;
Word eax, ebx, ecx, edx;
Word edi, esi, ebp;
Word esp, ss;
Word eflags;
Word eip, cs;
Word ds, es, fs, gs;
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_i386_new_thread_state)
typedef typename TMachITypes::Word Word;
Word gs, fs, es, ds;
Word edi, esi, ebp, esp;
Word ebx, edx, ecx, eax;
Word eip, cs, efl;
Word uesp, ss;
__packed_struct_end()
template <class TMachITypes>
__packed_struct(Mach_ARM_thread_state)
typedef typename TMachITypes::Word Word;
Word r[13]; // r0-r12
Word sp; // r13
Word lr; // r14
Word pc; // r15
Word cpsr;
__packed_struct_end()
} // namespace N_Mach
namespace N_Mach32 {
} // namespace N_Mach32
namespace N_Mach64 {
template <class TMachITypes>
__packed_struct(Mach_ppc_thread_state64)
typedef typename TMachITypes::Word Word;
typedef typename TMachITypes::Xword Xword;
Xword srr0; /* Instruction address register (PC; entry addr) */
Xword srr1; /* Machine state register (supervisor) */
Xword r0, r1, r2, r3, r4, r5, r6, r7;
Xword r8, r9,r10,r11,r12,r13,r14,r15;
Xword r16,r17,r18,r19,r20,r21,r22,r23;
Xword r24,r25,r26,r27,r28,r29,r30,r31;
Word cr; /* Condition register */ // FIXME: Xword?
Xword xer; /* User's integer exception register */
Xword lr; /* Link register */
Xword ctr; /* Count register */
Word vrsave; /* Vector Save Register */
__packed_struct_end()
} // namespace N_Mach64
namespace N_Mach {
template <class TP>
struct MachClass_32
{
typedef TP BeLePolicy;
// integral types (target endianness)
typedef typename TP::U16 TE16;
typedef typename TP::U32 TE32;
typedef typename TP::U64 TE64;
typedef N_Mach::MachITypes<TE32, TE64, TE32, TE32> MachITypes;
#if (ACC_CC_BORLANDC)
typedef TE32 Addr;
#else
typedef typename MachITypes::Addr Addr;
#endif
// Mach types
typedef N_Mach::Mach_header<MachITypes> Mach_header;
typedef N_Mach::Mach_segment_command<MachITypes> Mach_segment_command;
typedef N_Mach::Mach_section_command<MachITypes> Mach_section_command;
typedef N_Mach::Mach_ppc_thread_state<MachITypes> Mach_ppc_thread_state;
typedef N_Mach::Mach_i386_thread_state<MachITypes> Mach_i386_thread_state;
typedef N_Mach::Mach_ARM_thread_state<MachITypes> Mach_ARM_thread_state;
static void compileTimeAssertions() {
BeLePolicy::compileTimeAssertions();
COMPILE_TIME_ASSERT(sizeof(Addr) == 4)
}
};
template <class TP>
struct MachClass_64
{
typedef TP BeLePolicy;
// integral types (target endianness)
typedef typename TP::U16 TE16;
typedef typename TP::U32 TE32;
typedef typename TP::U64 TE64;
typedef N_Mach::MachITypes<TE32, TE64, TE64, TE64> MachITypes;
// Mach types
typedef N_Mach::Mach_header64<MachITypes> Mach_header;
typedef N_Mach::Mach_segment_command<MachITypes> Mach_segment_command;
typedef N_Mach::Mach_section_command<MachITypes> Mach_section_command;
static void compileTimeAssertions() {
BeLePolicy::compileTimeAssertions();
}
};
} // namespace N_Mach
typedef N_Mach::MachClass_32<N_BELE_CTP::HostPolicy> MachClass_Host32;
typedef N_Mach::MachClass_64<N_BELE_CTP::HostPolicy> MachClass_Host64;
typedef N_Mach::MachClass_32<N_BELE_CTP::BEPolicy> MachClass_BE32;
typedef N_Mach::MachClass_64<N_BELE_CTP::BEPolicy> MachClass_BE64;
typedef N_Mach::MachClass_32<N_BELE_CTP::LEPolicy> MachClass_LE32;
typedef N_Mach::MachClass_64<N_BELE_CTP::LEPolicy> MachClass_LE64;
// shortcuts
typedef MachClass_Host32::Mach_segment_command Mach32_segment_command;
typedef MachClass_Host32::Mach_section_command Mach32_section_command;
typedef MachClass_Host64::Mach_segment_command Mach64_segment_command;
typedef MachClass_Host64::Mach_section_command Mach64_section_command;
typedef MachClass_BE32::Mach_segment_command MachBE32_segment_command;
typedef MachClass_BE32::Mach_section_command MachBE32_section_command;
typedef MachClass_BE64::Mach_segment_command MachBE64_segment_command;
typedef MachClass_BE64::Mach_section_command MachBE64_section_command;
typedef MachClass_LE32::Mach_segment_command MachLE32_segment_command;
typedef MachClass_LE32::Mach_section_command MachLE32_section_command;
typedef MachClass_LE64::Mach_segment_command MachLE64_segment_command;
typedef MachClass_LE64::Mach_section_command MachLE64_section_command;
typedef MachClass_BE32::Mach_ppc_thread_state Mach_ppc_thread_state;
typedef MachClass_LE32::Mach_i386_thread_state Mach_i386_thread_state;
typedef MachClass_LE32::Mach_ARM_thread_state Mach_ARM_thread_state;
#include "p_unix.h"
template <class TMachClass>
class PackMachBase : public PackUnix
{
typedef PackUnix super;
protected:
typedef TMachClass MachClass;
typedef typename MachClass::BeLePolicy BeLePolicy;
typedef typename MachClass::MachITypes MachITypes;
// integral types (target endianness)
typedef typename MachClass::TE16 TE16;
typedef typename MachClass::TE32 TE32;
typedef typename MachClass::TE64 TE64;
typedef typename MachClass::Addr Addr;
// Mach types
typedef typename MachClass::Mach_header Mach_header;
typedef typename MachClass::Mach_segment_command Mach_segment_command;
typedef typename MachClass::Mach_section_command Mach_section_command;
public:
PackMachBase(InputFile *, unsigned cpuid, unsigned t_flavor, unsigned ts_word_cnt, unsigned tc_size);
virtual ~PackMachBase();
virtual int getVersion() const { return 13; }
virtual const int *getCompressionMethods(int method, int level) const;
// called by the generic pack()
virtual void pack1(OutputFile *, Filter &); // generate executable header
virtual void pack2(OutputFile *, Filter &); // append compressed data
virtual void pack3(OutputFile *, Filter &) = 0; // append loader
virtual void pack4(OutputFile *, Filter &) = 0; // append PackHeader
virtual void pack1_setup_threado(OutputFile *const fo) = 0;
virtual void unpack(OutputFile *fo);
virtual bool canPack();
virtual unsigned find_SEGMENT_gap(unsigned const k);
protected:
virtual void patchLoader();
virtual void patchLoaderChecksum();
virtual void updateLoader(OutputFile *);
virtual void buildMachLoader(
upx_byte const *const proto,
unsigned const szproto,
upx_byte const *const fold,
unsigned const szfold,
Filter const *ft );
virtual void defineSymbols(Filter const *);
virtual void addStubEntrySections(Filter const *);
static int __acc_cdecl_qsort compare_segment_command(void const *aa, void const *bb);
unsigned my_cputype;
unsigned my_thread_flavor;
unsigned my_thread_state_word_count;
unsigned my_thread_command_size;
unsigned n_segment;
unsigned sz_segment;
unsigned sz_mach_headers;
Mach_segment_command *rawmseg; // as input, with sections
Mach_segment_command *msegcmd; // LC_SEGMENT first, without sections
Mach_header mhdri;
Mach_header mhdro;
Mach_segment_command segcmdo;
__packed_struct(b_info) // 12-byte header before each compressed block
TE32 sz_unc; // uncompressed_size
TE32 sz_cpr; // compressed_size
unsigned char b_method; // compression algorithm
unsigned char b_ftid; // filter id
unsigned char b_cto8; // filter parameter
unsigned char b_unused;
__packed_struct_end()
__packed_struct(l_info) // 12-byte trailer in header for loader
TE32 l_checksum;
LE32 l_magic;
TE16 l_lsize;
unsigned char l_version;
unsigned char l_format;
__packed_struct_end()
__packed_struct(p_info) // 12-byte packed program header
TE32 p_progid;
TE32 p_filesize;
TE32 p_blocksize;
__packed_struct_end()
struct l_info linfo;
static void compileTimeAssertions() {
MachClass::compileTimeAssertions();
COMPILE_TIME_ASSERT(sizeof(b_info) == 12)
COMPILE_TIME_ASSERT(sizeof(l_info) == 12)
COMPILE_TIME_ASSERT(sizeof(p_info) == 12)
COMPILE_TIME_ASSERT_ALIGNED1(b_info)
COMPILE_TIME_ASSERT_ALIGNED1(l_info)
COMPILE_TIME_ASSERT_ALIGNED1(p_info)
}
};
class PackMachPPC32 : public PackMachBase<MachClass_BE32>
{
typedef PackMachBase<MachClass_BE32> super;
public:
PackMachPPC32(InputFile *f) : super(f, Mach_header::CPU_TYPE_POWERPC,
Mach_thread_command::PPC_THREAD_STATE,
sizeof(Mach_ppc_thread_state)>>2, sizeof(threado)) { }
virtual int getFormat() const { return UPX_F_MACH_PPC32; }
virtual const char *getName() const { return "Mach/ppc32"; }
virtual const char *getFullName(const options_t *) const { return "powerpc-darwin.macho"; }
protected:
virtual const int *getFilters() const;
virtual void pack1_setup_threado(OutputFile *const fo);
virtual void pack3(OutputFile *, Filter &); // append loader
virtual void pack4(OutputFile *, Filter &); // append PackHeader
virtual Linker* newLinker() const;
virtual void buildLoader(const Filter *ft);
__packed_struct(Mach_thread_command)
BE32 cmd; /* LC_THREAD or LC_UNIXTHREAD */
BE32 cmdsize; /* total size of this command */
BE32 flavor;
BE32 count; /* sizeof(following_thread_state)/4 */
Mach_ppc_thread_state state;
#define WANT_MACH_THREAD_ENUM
#include "p_mach_enum.h"
__packed_struct_end()
Mach_thread_command threado;
};
class PackMachI386 : public PackMachBase<MachClass_LE32>
{
typedef PackMachBase<MachClass_LE32> super;
public:
PackMachI386(InputFile *f) : super(f, Mach_header::CPU_TYPE_I386,
(unsigned)Mach_thread_command::i386_THREAD_STATE,
sizeof(Mach_i386_thread_state)>>2, sizeof(threado)) { }
virtual int getFormat() const { return UPX_F_MACH_i386; }
virtual const char *getName() const { return "Mach/i386"; }
virtual const char *getFullName(const options_t *) const { return "i386-darwin.macho"; }
protected:
virtual const int *getFilters() const;
virtual void pack1_setup_threado(OutputFile *const fo);
virtual void pack3(OutputFile *, Filter &); // append loader
virtual void pack4(OutputFile *, Filter &); // append PackHeader
virtual Linker* newLinker() const;
virtual void buildLoader(const Filter *ft);
virtual void addStubEntrySections(Filter const *);
__packed_struct(Mach_thread_command)
LE32 cmd; /* LC_THREAD or LC_UNIXTHREAD */
LE32 cmdsize; /* total size of this command */
LE32 flavor;
LE32 count; /* sizeof(following_thread_state)/4 */
Mach_i386_thread_state state;
#define WANT_MACH_THREAD_ENUM
#include "p_mach_enum.h"
__packed_struct_end()
Mach_thread_command threado;
};
class PackMachARMEL : public PackMachBase<MachClass_LE32>
{
typedef PackMachBase<MachClass_LE32> super;
public:
PackMachARMEL(InputFile *f) : super(f, Mach_header::CPU_TYPE_ARM,
(unsigned)Mach_thread_command::ARM_THREAD_STATE,
sizeof(Mach_ARM_thread_state)>>2, sizeof(threado)) { }
virtual int getFormat() const { return UPX_F_MACH_ARMEL; }
virtual const char *getName() const { return "Mach/ARMEL"; }
virtual const char *getFullName(const options_t *) const { return "ARMEL-darwin.macho"; }
protected:
virtual const int *getCompressionMethods(int method, int level) const;
virtual const int *getFilters() const;
virtual void pack1_setup_threado(OutputFile *const fo);
virtual void pack3(OutputFile *, Filter &); // append loader
virtual void pack4(OutputFile *, Filter &); // append PackHeader
virtual Linker* newLinker() const;
virtual void buildLoader(const Filter *ft);
virtual void addStubEntrySections(Filter const *);
__packed_struct(Mach_thread_command)
LE32 cmd; /* LC_THREAD or LC_UNIXTHREAD */
LE32 cmdsize; /* total size of this command */
LE32 flavor;
LE32 count; /* sizeof(following_thread_state)/4 */
Mach_ARM_thread_state state;
#define WANT_MACH_THREAD_ENUM
#include "p_mach_enum.h"
__packed_struct_end()
Mach_thread_command threado;
};
class PackMachFat : public Packer
{
typedef Packer super;
public:
PackMachFat(InputFile *f);
virtual ~PackMachFat();
virtual int getVersion() const { return 13; }
virtual int getFormat() const { return UPX_F_MACH_FAT; }
virtual const char *getName() const { return "Mach/fat"; }
virtual const char *getFullName(const options_t *) const { return "fat-darwin.macho"; }
virtual const int *getCompressionMethods(int method, int level) const;
virtual const int *getFilters() const;
protected:
// implementation
virtual void pack(OutputFile *fo);
virtual void unpack(OutputFile *fo);
virtual void list();
public:
virtual bool canPack();
virtual int canUnpack();
protected:
// loader core
virtual void buildLoader(const Filter *ft);
virtual Linker* newLinker() const;
#if (ACC_CC_BORLANDC)
public:
#endif
enum { N_FAT_ARCH = 5 };
protected:
__packed_struct(Fat_head)
struct Mach_fat_header fat;
struct Mach_fat_arch arch[N_FAT_ARCH];
__packed_struct_end()
Fat_head fat_head;
// UI handler
UiPacker *uip;
// linker
Linker *linker;
#define WANT_MACH_HEADER_ENUM
#include "p_mach_enum.h"
};
#endif /* already included */
/*
vi:ts=4:et
*/
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