Chameleon

Chameleon Commit Details

Date:2011-08-01 04:27:11 (12 years 8 months ago)
Author:Evan Lojewski
Commit:1247
Parents: 1246
Message:Update makefiles... initial work for fat modules
Changes:
A/branches/xZen/src/modules/ModuleSystem/macho.c
M/branches/xZen/src/i386/libsa/Makefile
M/branches/xZen/src/modules/HelloWorld/Makefile
M/branches/xZen/src/modules/Disk/GUIDPartition.cpp
M/branches/xZen/src/i386/Makefile
M/branches/xZen/src/Make.rules
M/branches/xZen/src/modules/uClibcxx/Makefile
M/branches/xZen/src/modules/uClibcxx/include/unwind-cxx.h
M/branches/xZen/src/modules/Disk/Main.cpp
M/branches/xZen/src/modules/FileSystem/Makefile
M/branches/xZen/src/modules/klibc/Makefile
M/branches/xZen/src/include/unwind.h
M/branches/xZen/src/modules/Disk/Makefile
M/branches/xZen/src/modules/ModuleSystem/Makefile
M/branches/xZen/src/modules/klibc/memmove.c
M/branches/xZen/src/modules/ModuleSystem/include/modules.h
M/branches/xZen/src/arm/Make.rules
M/branches/xZen/src/modules/Makefile
M/branches/xZen/src/ppc/Make.rules
M/branches/xZen/src/modules/FileSystem/HFS/Makefile
M/branches/xZen/src/util/fdisk/Makefile
M/branches/xZen/src/util/Makefile
M/branches/xZen/src/modules/ModuleSystem/modules.c
M/branches/xZen/src/modules/MakeInc.dir
M/branches/xZen/src/i386/Make.rules

File differences

branches/xZen/src/arm/Make.rules
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␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␉␊
$(OBJROOT)/%.armo: %.s␊
␉@echo "\t[AS:I386] $<"␊
␉@$(ARM_CC) $(CPPFLAGS) -c $(INC) -arch arm -o $@ $< \␊
␉␉ -MD -dependency-file $*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $*.d␊
␊
␉␊
ACTUAL_OBJECTS := ${ACTUAL_OBJECTS} $(addsuffix .armo, $(addprefix $(OBJROOT)/, $(OBJECTS)))␊
MODULE_OBJECTS := ${MODULE_OBJECTS} $(addsuffix .armo, $(addprefix $(OBJROOT)/, $(MODULE_OBJS)))␊
branches/xZen/src/ppc/Make.rules
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␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␉␊
$(OBJROOT)/%.ppco: %.s␊
␉@echo "\t[AS:PPC] $<"␊
␉@$(PPC_CC) $(CPPFLAGS) -c $(INC) -arch ppc -o $@ $< \␊
␉␉ -MD -dependency-file $*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $*.d␊
␊
␉␊
ACTUAL_OBJECTS := ${ACTUAL_OBJECTS} $(addsuffix .ppco, $(addprefix $(OBJROOT)/, $(OBJECTS)))␊
MODULE_OBJECTS := ${MODULE_OBJECTS} $(addsuffix .ppco, $(addprefix $(OBJROOT)/, $(MODULE_OBJS)))␊
branches/xZen/src/include/unwind.h
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#ifdef __cplusplus␊
extern "C" {␊
#endif␊
␉␊
␉typedef unsigned _Unwind_Exception_Class __attribute__((__mode__(__DI__)));␊
␊
␊
/* Level 1: Base ABI */␊
␊
/* @@@ The IA-64 ABI uses uint64 throughout. Most places this is␊
consumer of an exception. We'll go along with this for now even on␊
32-bit machines. We'll need to provide some other option for␊
16-bit machines and for machines with > 8 bits per byte. */␊
typedef unsigned _Unwind_Exception_Class __attribute__((__mode__(__DI__)));␊
␊
/* The unwind interface uses reason codes in several contexts to␊
identify the reasons for failures or other actions. */␊
branches/xZen/src/Make.rules
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-include $(SRCROOT)/auto.conf␊
␊
-include ${SRCROOT}/i386/Make.rules␊
#-include ${SRCROOT}/x86_64/Make.rules␊
-include ${SRCROOT}/ppc/Make.rules␊
-include ${SRCROOT}/arm/Make.rules␊
␊
branches/xZen/src/modules/uClibcxx/Makefile
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MODULE_DEPENDENCIES = klibc␊
␊
DIR = uClibc++␊
# sstream.o fstream.o␊
MODULE_OBJS = uClibc++.o abi.o algorithm.o associative_base.o bitset.o \␊
␉␉complex.o del_op.o del_opnt.o del_opv.o del_opvnt.o \␊
␉␉deque.o eh_alloc.o eh_globals.o exception.o \␊
␉␉func_exception.o iomanip.o char_traits.o \␊
␉␉iterator.o limits.o list.o locale.o \␊
␉␉map.o new_handler.o new_op.o new_opnt.o new_opv.o \␊
␉␉new_opvnt.o numeric.o queue.o set.o \␊
␉␉stack.o stdexcept.o streambuf.o string.o typeinfo.o \␊
␉␉utility.o valarray.o vector.o support.o \␊
␉␉ios.o iostream.o istream.o ostream.o ␊
# sstream fstream␊
MODULE_OBJS = uClibc++ abi algorithm associative_base bitset \␊
␉␉complex del_op del_opnt del_opv del_opvnt \␊
␉␉deque eh_alloc eh_globals exception \␊
␉␉func_exception iomanip char_traits \␊
␉␉iterator limits list locale \␊
␉␉map new_handler new_op new_opnt new_opv \␊
␉␉new_opvnt numeric queue set \␊
␉␉stack stdexcept streambuf string typeinfo \␊
␉␉utility valarray vector support \␊
␉␉ios iostream istream ostream ␊
␊
include ../MakeInc.dir
branches/xZen/src/modules/uClibcxx/include/unwind-cxx.h
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#include <typeinfo>␍␊
#include <exception>␍␊
#include <cstddef>␍␊
#include "unwind.h"␍␊
#include <unwind.h>␍␊
␍␊
#pragma GCC visibility push(default)␍␊
␍␊
// The current installed user handlers.␍␊
extern std::terminate_handler __terminate_handler;␍␊
extern std::unexpected_handler __unexpected_handler;␍␊
␍␊
// These are explicitly GNU C++ specific.␍␊
␍␊
// This is the exception class we report -- "GNUCC++\0".␍␊
const _Unwind_Exception_Class __gxx_exception_class␍␊
= ((((((((_Unwind_Exception_Class) 'G' ␍␊
␉ << 8 | (_Unwind_Exception_Class) 'N')␍␊
␉<< 8 | (_Unwind_Exception_Class) 'U')␍␊
<< 8 | (_Unwind_Exception_Class) 'C')␍␊
<< 8 | (_Unwind_Exception_Class) 'C')␍␊
<< 8 | (_Unwind_Exception_Class) '+')␍␊
<< 8 | (_Unwind_Exception_Class) '+')␍␊
<< 8 | (_Unwind_Exception_Class) '\0');␍␊
␍␊
// GNU C++ personality routine, Version 0.␍␊
extern "C" _Unwind_Reason_Code __gxx_personality_v0␍␊
(int, _Unwind_Action, _Unwind_Exception_Class,␍␊
struct _Unwind_Exception *, struct _Unwind_Context *);␍␊
␍␊
// GNU C++ sjlj personality routine, Version 0.␍␊
extern "C" _Unwind_Reason_Code __gxx_personality_sj0␍␊
(int, _Unwind_Action, _Unwind_Exception_Class,␍␊
struct _Unwind_Exception *, struct _Unwind_Context *);␍␊
␍␊
␉␍␊
#ifdef __UCLIBCXX_EXCEPTION_SUPPORT__␍␊
// Acquire the C++ exception header from the C++ object.␍␊
branches/xZen/src/modules/FileSystem/HFS/Makefile
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␊
DIR = HelloWorld␊
␊
MODULE_OBJS = HelloWorld.o␊
MODULE_OBJS = HelloWorld␊
␊
include ../MakeInc.dir
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DIR = HelloWorld␊
SUBDIRS = HFS␊
␊
MODULE_OBJS = Main.o FileSystem.o␊
MODULE_OBJS = Main FileSystem␊
␊
include ../MakeInc.dir
branches/xZen/src/modules/MakeInc.dir
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override OBJROOT = $(ROOT)/obj/boot2_modules/$(DIR)␊
endif␊
␊
include ${ROOT}/Make.rules␊
␊
ifeq ($(BUILT_IN),yes)␊
␊
CFLAGS␉:= $(RC_CFLAGS) $(OPTIM) $(MORECPP) -arch i386 -g -Wmost -Werror \␊
␉␉-fno-builtin -DSAIO_INTERNAL_USER -static $(OMIT_FRAME_POINTER_CFLAG) \␊
␉␉-mpreferred-stack-boundary=2 -fno-align-functions -fno-stack-protector \␊
␉␉-march=pentium4 -msse2 -mfpmath=sse -msoft-float -nostdinc -include $(SRCROOT)/autoconf.h␊
CFLAGS␉:= $(RC_CFLAGS) $(OPTIM) $(MORECPP) -g -Wmost -Werror \␊
␉␉-fno-builtin -DSAIO_INTERNAL_USER $(OMIT_FRAME_POINTER_CFLAG) \␊
␉␉-fno-align-functions -fno-stack-protector \␊
␉␉-msoft-float -nostdinc -include $(SRCROOT)/autoconf.h␊
␉ ␊
CPPFLAGS := $(CPPFLAGS) -arch i386 -static -nostdinc++ -Wmost -Werror \␊
␉-fno-builtin -mpreferred-stack-boundary=2 \␊
␉-fno-align-functions -fno-stack-protector \␊
␉-march=pentium4 -msse2 -mfpmath=sse -msoft-float \␊
␉-arch i386 -include $(SRCROOT)/autoconf.h␊
CPPFLAGS := $(CPPFLAGS) -nostdinc++ -Wmost -Werror \␊
␉-fno-builtin -msoft-float \␊
␉-fno-rtti -fno-exceptions \␊
␉-include $(SRCROOT)/autoconf.h␊
␊
else␊
␊
CFLAGS := $(CLFAGS) -nostdinc -Wmost -Werror \␊
␉-fno-builtin -mpreferred-stack-boundary=2 \␊
␉-fno-builtin \␊
␉-fno-align-functions -fno-stack-protector \␊
␉-march=pentium4 -msse2 -mfpmath=sse -msoft-float \␊
␉-arch i386 -include $(SRCROOT)/autoconf.h␊
␉-msoft-float \␊
␉-include $(SRCROOT)/autoconf.h␊
␉␊
CPPFLAGS := $(CPPFLAGS) -nostdinc++ -Wmost -Werror \␊
␉-fno-builtin -mpreferred-stack-boundary=2 \␊
␉-fno-builtin \␊
␉-fno-align-functions -fno-stack-protector \␊
␉-march=pentium4 -msse2 -mfpmath=sse -msoft-float \␊
␉-arch i386 -include $(SRCROOT)/autoconf.h␊
␉-msoft-float \␊
␉-fno-rtti -fno-exceptions \␊
␉-include $(SRCROOT)/autoconf.h␊
␊
endif␊
␊
include ${ROOT}/Make.rules␊
␊
␊
␊
UTILDIR = ../../util␊
LIBSADIR = ../../libsa␊
LIBSAIODIR = ../../libsaio␊
BOOT2DIR = ../../boot2␊
␊
MODULE_INCLUDES := $(foreach x,ModuleSystem $(MODULE_DEPENDENCIES),-I$(SRCROOT)/i386/modules/$(x)/include/)␊
MODULE_INCLUDES := $(foreach x,ModuleSystem $(MODULE_DEPENDENCIES),-I$(SRCROOT)/modules/$(x)/include/)␊
␊
␊
INC = -I$(SRCROOT)/sym/i386/ -I$(SRCROOT)/i386/modules/include/ -Iinclude/ -I$(SRCROOT)/i386/libsaio/ -I$(SRCROOT)/i386/libsa/ -I$(SRCROOT)/i386/include/ -I$(SRCROOT)/i386/boot2/ $(MODULE_INCLUDES)␊
INC = -I$(SRCROOT)/include/ -I$(SRCROOT)/sym/ -I$(SRCROOT)/modules/include/ -Iinclude/ -I$(SRCROOT)/i386/libsaio/ -I$(SRCROOT)/i386/libsa/ -I$(SRCROOT)/i386/include/ -I$(SRCROOT)/i386/boot2/ $(MODULE_INCLUDES)␊
DEFINES := -D__KLIBC__ $(DEFINES)␊
␊
MODULE_DEPENDENCIES := $(wildcard $(foreach x,$(MODULE_DEPENDENCIES),$(SYMROOT)/$(x).dylib)) \␊
␊
MODULE_DEFINITION := $(CONFIG_$(shell echo $(MODULE_NAME) | tr '[:lower:]' '[:upper:]')_MODULE)␊
␊
␊
ifeq ($(MODULE_DEFINITION),m)␊
ifneq ($(BUILT_IN),yes)␊
␊
␊
###### Build module into the code binary ######␊
$(SYMROOT)/$(MODULE_NAME).dylib: $(MODULE_DEPENDENCIES) ${MODULE_OBJECTS} $(OBJROOT)/$(MODULE_NAME).desc $(OBJROOT)/$(MODULE_NAME).author Makefile␊
␉@echo "\t[LD] $(MODULE_NAME).dylib"␊
␉@echo "\t[LD:I386] $(MODULE_NAME).dylib"␊
␉@ld -arch i386 -undefined dynamic_lookup \␊
␉-dylib -read_only_relocs suppress \␊
␉-S -x -Z -dead_strip_dylibs \␊
␉-no_uuid \␊
␉-current_version $(MODULE_VERSION) -compatibility_version $(MODULE_COMPAT_VERSION) \␊
␉-final_output $(MODULE_NAME) \␊
␉$(filter %.o,$^) \␊
␉$(filter %.i386o,$^) \␊
␉-macosx_version_min 10.6 \␊
␉-sectcreate __INFO __author $(OBJROOT)/$(MODULE_NAME).author \␊
␉-sectcreate __INFO __description $(OBJROOT)/$(MODULE_NAME).desc \␊
␉-o $(SYMROOT)/modules/$(MODULE_NAME).dylib␊
␊
␉-o $(SYMROOT)/$(MODULE_NAME).i386.dylib␊
␉␊
␉@echo "\t[LD:PPC] $(MODULE_NAME).dylib"␊
␉@ld -arch ppc -undefined dynamic_lookup \␊
␉-dylib -read_only_relocs suppress \␊
␉-S -x -Z -dead_strip_dylibs \␊
␉-no_uuid \␊
␉-current_version $(MODULE_VERSION) -compatibility_version $(MODULE_COMPAT_VERSION) \␊
␉-final_output $(MODULE_NAME) \␊
␉$(filter %.ppco,$^) \␊
␉/usr/lib/dylib1.o \␊
␉-macosx_version_min 10.6 \␊
␉-sectcreate __INFO __author $(OBJROOT)/$(MODULE_NAME).author \␊
␉-sectcreate __INFO __description $(OBJROOT)/$(MODULE_NAME).desc \␊
␉-o $(SYMROOT)/$(MODULE_NAME).ppc.dylib␊
␉␊
␉@echo "\t[LD:ARM] $(MODULE_NAME).dylib"␊
␉@ld -arch arm -undefined dynamic_lookup \␊
␉-dylib -read_only_relocs suppress \␊
␉-S -x -Z -dead_strip_dylibs \␊
␉-no_uuid \␊
␉-current_version $(MODULE_VERSION) -compatibility_version $(MODULE_COMPAT_VERSION) \␊
␉-final_output $(MODULE_NAME) \␊
␉$(filter %.armo,$^) \␊
␉/Developer/Platforms/iPhoneOS.platform//Developer/SDKs/iPhoneOS4.3.sdk/usr/lib/dylib1.o \␊
␉-macosx_version_min 10.6 \␊
␉-sectcreate __INFO __author $(OBJROOT)/$(MODULE_NAME).author \␊
␉-sectcreate __INFO __description $(OBJROOT)/$(MODULE_NAME).desc \␊
␉-o $(SYMROOT)/$(MODULE_NAME).arm.dylib␊
␉␊
␉@echo "\t[LIPO] $(@F)"␊
␉@lipo -create -arch i386 $(SYMROOT)/$(MODULE_NAME).i386.dylib \␊
␉␉␉ ␉ -arch ppc $(SYMROOT)/$(MODULE_NAME).ppc.dylib \␊
␉␉␉ ␉ -arch arm $(SYMROOT)/$(MODULE_NAME).arm.dylib \␊
␉␉␉ ␉ -output $(SYMROOT)/$(MODULE_NAME).dylib␊
␉␉␉ ␉ ␊
␉@rm $(SYMROOT)/$(MODULE_NAME).i386.dylib $(SYMROOT)/$(MODULE_NAME).ppc.dylib $(SYMROOT)/$(MODULE_NAME).arm.dylib␊
else␊
␊
##### BUild module as a seperate module #####␊
$(SYMROOT)/modules/$(MODULE_NAME).dylib: $(MODULE_DEPENDENCIES) ${MODULE_OBJECTS} $(OBJROOT)/$(MODULE_NAME).desc $(OBJROOT)/$(MODULE_NAME).author $(SRCROOT)/obj/i386/boot2/Symbols_LINKER_ONLY.dylib Makefile␊
$(SYMROOT)/$(MODULE_NAME).dylib: $(MODULE_DEPENDENCIES) ${MODULE_OBJECTS} $(OBJROOT)/$(MODULE_NAME).desc $(OBJROOT)/$(MODULE_NAME).author $(SRCROOT)/obj/i386/boot2/Symbols_LINKER_ONLY.dylib Makefile␊
␉@echo "\t[LD] $(MODULE_NAME).dylib"␊
␉␊
␉@ld -arch i386 \␊
branches/xZen/src/modules/klibc/memmove.c
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/*␊
* memmove.c␊
*/␊
#include <sys/types.h>␊
␊
#include "libsaio.h"␊
␊
void *memmove(void *dst, const void *src, size_t n)␊
{␊
␉const char *p = src;␊
branches/xZen/src/modules/klibc/Makefile
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␊
DIR = klibc␊
␊
MODULE_OBJS = ␉klibc.o \␊
␉␉__ashldi3.o __ashrdi3.o __clzsi2.o __divdi3.o __divsi3.o \␊
␉␉__lshrdi3.o __moddi3.o __modsi3.o __udivdi3.o \␊
␉␉__udivmoddi4.o __udivmodsi4.o __udivsi3.o \␊
␉␉__umoddi3.o __umodsi3.o \␊
␉␉strntoumax.o strntoimax.o atol.o atoll.o \␊
␉␉strcasecmp.o strncasecmp.o strlcat.o strndup.o strnlen.o \␊
␉␉strsep.o strtoimax.o strtok_r.o strtok.o strtol.o strtoll.o strtotimespec.o strtotimeval.o \␊
␉␉strtoul.o strtoull.o strtoumax.o strxspn.o strpbrk.o \␊
␉␉bsearch.o calloc.o \␊
␉␉jrand48.o lrand48.o mrand48.o srand48.o nrand48.o seed48.o \␊
␉␉memccpy.o memchr.o memmem.o memmove.o memrchr.o memswap.o \␊
␉␉qsort.o sha1hash.o onexit.o atexit.o exit.o \␊
␉␉snprintf.o vsnprintf.o sscanf.o vsscanf.o\␊
␉␉fwrite.o fprintf.o vfprintf.o printf.o␊
MODULE_OBJS = ␉klibc \␊
␉␉__ashldi3 __ashrdi3 __clzsi2 __divdi3 __divsi3 \␊
␉␉__lshrdi3 __moddi3 __modsi3 __udivdi3 \␊
␉␉__udivmoddi4 __udivmodsi4 __udivsi3 \␊
␉␉__umoddi3 __umodsi3 \␊
␉␉strntoumax strntoimax atol atoll \␊
␉␉strcasecmp strncasecmp strlcat strndup strnlen \␊
␉␉strsep strtoimax strtok_r strtok strtol strtoll \␊
␉␉strtotimespec strtotimeval \␊
␉␉strtoul strtoull strtoumax strxspn strpbrk \␊
␉␉bsearch calloc \␊
␉␉jrand48 lrand48 mrand48 srand48 nrand48 seed48 \␊
␉␉memccpy memchr memmem memmove memrchr memswap \␊
␉␉qsort sha1hash onexit atexit exit \␊
␉␉snprintf vsnprintf sscanf vsscanf\␊
␉␉fwrite fprintf vfprintf printf␊
␊
include ../MakeInc.dir␊
branches/xZen/src/modules/Disk/GUIDPartition.cpp
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␊
UInt32 offset = (mPartitionNumber % 4) * entrySize;␊
␊
mGPTEntry = (GPTEntry*) /*mLBABUffer*/ BIOS_ADDR + offset;␊
mGPTEntry = (GPTEntry*) mLBABUffer + offset;␊
␊
// TODO: verify partition type != NULL␊
␊
branches/xZen/src/modules/Disk/Main.cpp
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#include <GUIDPartition.hpp>␊
#include <FDiskPartition.hpp>␊
␊
#define MAXBIOSDEV 32␊
#define MAXDEV 32␊
#define BIOSBUFFER 512 * 8 /* 4Kb */␊
extern "C"␊
{␊
}␊
␊
␊
BiosDisk* disks[MAXBIOSDEV];␊
Disk*␉␉disks[MAXDEV];␊
UInt8 numBiosDisks = 0;␊
UInt8* diskBuffer = NULL;␊
␊
␊
void Disk_start()␊
{␊
diskBuffer = (UInt8*)malloc(BIOSBUFFER);␊
//diskBuffer = (UInt8*)malloc(BIOSBUFFER);␊
/*UInt8* mbr = (UInt8*)malloc(512);␊
␊
disk->Read(0, 1, mbr);␊
␊
void DetermineDisks()␊
{␊
char diskName[] = "bios:/hd%s/";␊
/*char diskName[] = "bios:/hd%s/";␊
␊
for(int i = 0; i < MAXBIOSDEV; i++)␊
{␊
}␊
␊
}␊
␉ */␊
}␊
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␊
DIR = Disk␊
␊
MODULE_OBJS = Disk.o BiosDisk.o Partition.o FDiskPartition.o GUIDPartition.o Main.o␊
#i386 only -> BiosDisk␊
MODULE_OBJS = Disk Partition FDiskPartition GUIDPartition Main␊
␊
include ../MakeInc.dir
branches/xZen/src/modules/ModuleSystem/include/modules.h
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long long(*symbol_handler)(char*, long long, char),␊
void (*section_handler)(char* section, char* segment, long long offset, long long address)␊
);␊
unsigned int␉handle_symtable(UInt32 base,␊
void*␉␉␉handle_symtable(UInt32 base,␊
struct symtab_command* symtabCommand,␊
long long(*symbol_handler)(char*, long long, char),␊
char is64);␊
branches/xZen/src/modules/ModuleSystem/macho.c
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/*␊
* Copyright 2010 Evan Lojewski. All rights reserved.␊
*␊
*/␊
#ifndef CONFIG_MACHO_DEBUG␊
#define CONFIG_MACHO_DEBUG 0␊
#endif␊
␊
␊
#include "boot.h"␊
#include "modules.h"␊
␊
extern void start_built_in_modules();␊
␊
#if CONFIG_MACHO_DEBUG␊
#define DBG(x...)␉printf(x);␊
#define DBGPAUSE()␉getchar()␊
#else␊
#define DBG(x...)␊
#define DBGPAUSE()␊
#endif␊
␊
// NOTE: Global so that modules can link with this␊
UInt64 textAddress = 0;␊
UInt64 textSection = 0;␊
␊
/********************************************************************************/␊
/*␉Macho Parser␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉*/␊
/********************************************************************************/␊
␊
/*␊
* Parse through a macho module. The module will be rebased and binded␊
* as specified in the macho header. If the module is sucessfuly laoded␊
* the module iinit address will be returned.␊
* NOTE; all dependecies will be loaded before this module is started␊
* NOTE: If the module is unable to load ot completeion, the modules␊
* symbols will still be available.␊
*/␊
void* parse_mach(void* binary, ␊
int(*dylib_loader)(char*), ␊
long long(*symbol_handler)(char*, long long, char),␊
void (*section_handler)(char* section, char* segment, long long offset, long long address)␊
)␊
{␉␊
␉char is64 = false;␊
␉void (*module_start)(void) = NULL;␊
␉␊
␉// Module info␊
␉/*char* moduleName = NULL;␊
␉ UInt32 moduleVersion = 0;␊
␉ UInt32 moduleCompat = 0;␊
␉ */␊
␉// TODO convert all of the structs to a union␊
␉struct load_command *loadCommand = NULL;␊
␉struct dylib_command* dylibCommand = NULL;␊
␉struct dyld_info_command* dyldInfoCommand = NULL;␊
␉␊
␉struct symtab_command* symtabCommand = NULL;␊
␉struct segment_command *segCommand = NULL;␊
␉struct segment_command_64 *segCommand64 = NULL;␊
␉␊
␉//struct dysymtab_command* dysymtabCommand = NULL;␊
␉UInt32 binaryIndex = 0;␊
␉UInt16 cmd = 0;␊
␉␊
␉textSection = 0;␊
␉textAddress = 0;␉// reinitialize text location in case it doesn't exist;␊
␉␊
␉// Parse through the load commands␊
␉if(((struct mach_header*)binary)->magic == MH_MAGIC)␊
␉{␊
␉␉is64 = false;␊
␉␉binaryIndex += sizeof(struct mach_header);␊
␉}␊
␉else if(((struct mach_header_64*)binary)->magic == MH_MAGIC_64)␊
␉{␊
␉␉// NOTE: modules cannot be 64bit...␊
␉␉is64 = true;␊
␉␉binaryIndex += sizeof(struct mach_header_64);␊
␉}␊
␉else␊
␉{␊
␉␉verbose("Invalid mach magic 0x%X\n", ((struct mach_header*)binary)->magic);␊
␉␉//getchar();␊
␉␉return NULL;␊
␉}␊
␉␊
␉␊
␉␊
␉/*if(((struct mach_header*)binary)->filetype != MH_DYLIB)␊
␉ {␊
␉ printf("Module is not a dylib. Unable to load.\n");␊
␉ getchar();␊
␉ return NULL; // Module is in the incorrect format␊
␉ }*/␊
␉␊
␉while(cmd < ((struct mach_header*)binary)->ncmds)␊
␉{␊
␉␉cmd++;␊
␉␉␊
␉␉loadCommand = binary + binaryIndex;␊
␉␉UInt32 cmdSize = loadCommand->cmdsize;␊
␉␉␊
␉␉␊
␉␉switch ((loadCommand->cmd & 0x7FFFFFFF))␊
␉␉{␊
␉␉␉case LC_SYMTAB:␊
␉␉␉␉symtabCommand = binary + binaryIndex;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_SEGMENT: // 32bit macho␊
{␊
segCommand = binary + binaryIndex;␊
␊
UInt32 sectionIndex;␊
␊
sectionIndex = sizeof(struct segment_command);␊
␊
struct section *sect;␊
␊
while(sectionIndex < segCommand->cmdsize)␊
{␊
sect = binary + binaryIndex + sectionIndex;␊
␊
sectionIndex += sizeof(struct section);␊
␊
if(section_handler) section_handler(sect->sectname, segCommand->segname, sect->offset, sect->addr);␊
␊
␊
␊
if((strcmp("__TEXT", segCommand->segname) == 0) && (strcmp("__text", sect->sectname) == 0))␊
{␊
// __TEXT,__text found, save the offset and address for when looking for the calls.␊
textSection = sect->offset;␊
textAddress = sect->addr;␊
}␉␉␉␉␉␊
}␊
}␊
␉␉␉␉break;␊
␉␉␉case LC_SEGMENT_64:␉// 64bit macho's␊
{␊
segCommand64 = binary + binaryIndex;␉␉␉␉␊
UInt32 sectionIndex;␊
␊
sectionIndex = sizeof(struct segment_command_64);␊
␊
struct section_64 *sect;␊
␊
while(sectionIndex < segCommand64->cmdsize)␊
{␊
sect = binary + binaryIndex + sectionIndex;␊
␊
sectionIndex += sizeof(struct section_64);␊
␊
if(section_handler) section_handler(sect->sectname, segCommand->segname, sect->offset, sect->addr);␊
␊
␊
if((strcmp("__TEXT", segCommand->segname) == 0) && (strcmp("__text", sect->sectname) == 0))␊
{␊
// __TEXT,__text found, save the offset and address for when looking for the calls.␊
textSection = sect->offset;␊
textAddress = sect->addr;␊
}␉␉␉␉␉␊
}␉␊
␉␉␉␉}␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case LC_LOAD_DYLIB:␊
␉␉␉case LC_LOAD_WEAK_DYLIB ^ LC_REQ_DYLD:␊
␉␉␉␉dylibCommand = binary + binaryIndex;␊
␉␉␉␉char* module = binary + binaryIndex + ((UInt32)*((UInt32*)&dylibCommand->dylib.name));␊
␉␉␉␉// Possible enhancments: verify version␊
␉␉␉␉// =␉dylibCommand->dylib.current_version;␊
␉␉␉␉// =␉dylibCommand->dylib.compatibility_version;␊
␉␉␉␉if(dylib_loader)␊
␉␉␉␉{␊
␉␉␉␉␉char* name = malloc(strlen(module) + strlen(".dylib") + 1);␊
␉␉␉␉␉sprintf(name, "%s.dylib", module);␊
␉␉␉␉␉␊
␉␉␉␉␉if (!dylib_loader(name))␊
␉␉␉␉␉{␊
␉␉␉␉␉␉// NOTE: any symbols exported by dep will be replace with the void function␊
␉␉␉␉␉␉free(name);␊
␉␉␉␉␉}␊
␉␉␉␉}␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_ID_DYLIB:␊
␉␉␉␉dylibCommand = binary + binaryIndex;␊
␉␉␉␉/*moduleName =␉binary + binaryIndex + ((UInt32)*((UInt32*)&dylibCommand->dylib.name));␊
␉␉␉␉ moduleVersion =␉dylibCommand->dylib.current_version;␊
␉␉␉␉ moduleCompat =␉dylibCommand->dylib.compatibility_version;␊
␉␉␉␉ */␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_DYLD_INFO:␊
␉␉␉//case LC_DYLD_INFO_ONLY:␉// compressed info, 10.6+ macho files, already handeled␊
␉␉␉␉// Bind and rebase info is stored here␊
␉␉␉␉dyldInfoCommand = binary + binaryIndex;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_DYSYMTAB:␊
␉␉␉case LC_UUID:␊
␉␉␉case LC_UNIXTHREAD:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉default:␊
␉␉␉␉DBG("Unhandled loadcommand 0x%X\n", loadCommand->cmd & 0x7FFFFFFF);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉}␊
␉␉␊
␉␉binaryIndex += cmdSize;␊
␉}␊
␊
␉// bind_macho uses the symbols, if the textAdd does not exist (Symbols.dylib, no code), addresses are static and not relative␊
␉module_start = (void*)handle_symtable((UInt32)binary, symtabCommand, symbol_handler, is64);␊
␉␊
␉if(dyldInfoCommand)␊
␉{␊
␉␉// Rebase the module before binding it.␊
␉␉if(dyldInfoCommand->rebase_off)␉␉rebase_macho(binary, (char*)dyldInfoCommand->rebase_off,␉dyldInfoCommand->rebase_size);␊
␉␉// Bind all symbols. ␊
␉␉if(dyldInfoCommand->bind_off)␉␉bind_macho(binary, (UInt8*)dyldInfoCommand->bind_off,␉␉dyldInfoCommand->bind_size);␊
␉␉if(dyldInfoCommand->weak_bind_off)␉bind_macho(binary, (UInt8*)dyldInfoCommand->weak_bind_off,␉dyldInfoCommand->weak_bind_size);␊
␉␉if(dyldInfoCommand->lazy_bind_off)␉bind_macho(binary, (UInt8*)dyldInfoCommand->lazy_bind_off,␉dyldInfoCommand->lazy_bind_size);␊
␉}␊
␉␊
␉return module_start;␊
␉␊
}␊
␊
/*␊
* parse the symbol table␊
* Lookup any undefined symbols␊
*/␊
␊
void* handle_symtable(UInt32 base, struct symtab_command* symtabCommand, long long(*symbol_handler)(char*, long long, char), char is64)␊
{␊
␉␊
␉void* module_start␉= (void*) -1;␉␊
␉UInt32 symbolIndex␉␉␉= 0;␊
␉char* symbolString␉␉␉= base + (char*)symtabCommand->stroff;␊
␊
␉if(!is64)␊
␉{␊
␉␉struct nlist* symbolEntry = (void*)base + symtabCommand->symoff;␊
␉␉while(symbolIndex < symtabCommand->nsyms)␊
␉␉{␊
␉␉␉// If the symbol is exported by this module␊
␉␉␉if(symbolEntry->n_value &&␊
␉␉␉ symbol_handler(symbolString + symbolEntry->n_un.n_strx, textAddress ? (long long)base + symbolEntry->n_value : symbolEntry->n_value, is64) != 0xFFFFFFFF)␊
␉␉␉{␊
␉␉␉␉␊
␉␉␉␉// Module start located. Start is an alias so don't register it␊
␉␉␉␉module_start = (void*)(textAddress ? base + symbolEntry->n_value : symbolEntry->n_value);␊
␉␉␉}␊
␉␉␉␊
␉␉␉symbolEntry++;␊
␉␉␉symbolIndex++;␉// TODO remove␊
␉␉}␊
␉}␊
␉else␊
␉{␊
␉␉/*␊
␉␉struct nlist_64* symbolEntry = (void*)base + symtabCommand->symoff;␊
␉␉// NOTE First entry is *not* correct, but we can ignore it (i'm getting radar:// right now, verify later)␉␊
␉␉while(symbolIndex < symtabCommand->nsyms)␊
␉␉{␊
␉␉␉␊
␉␉␉␊
␉␉␉// If the symbol is exported by this module␊
␉␉␉if(symbolEntry->n_value &&␊
␉␉␉ symbol_handler(symbolString + symbolEntry->n_un.n_strx, textAddress ? (long long)base + symbolEntry->n_value : symbolEntry->n_value, is64) != 0xFFFFFFFF)␊
␉␉␉{␊
␉␉␉␉␊
␉␉␉␉// Module start located. Start is an alias so don't register it␊
␉␉␉␉module_start = textAddress ? base + symbolEntry->n_value : symbolEntry->n_value;␊
␉␉␉}␊
␉␉␉␊
␉␉␉symbolEntry++;␊
␉␉␉symbolIndex++;␉// TODO remove␊
␉␉}␊
␉␉ */␊
␉}␊
␉return module_start;␊
}␊
␊
// Based on code from dylibinfo.cpp and ImageLoaderMachOCompressed.cpp␊
void rebase_macho(void* base, char* rebase_stream, UInt32 size)␊
{␊
␉rebase_stream += (UInt32)base;␊
␉␊
␉UInt8 immediate = 0;␊
␉UInt8 opcode = 0;␊
␉UInt8 type = 0;␊
␉UInt32 segmentAddress = 0;␊
␉␊
␉␊
␉UInt32 tmp = 0;␊
␉UInt32 tmp2 = 0;␊
␉UInt8 bits = 0;␊
␉int index = 0;␊
␉unsigned int i = 0;␊
␉␊
␉while(i < size)␊
␉{␊
␉␉immediate = rebase_stream[i] & REBASE_IMMEDIATE_MASK;␊
␉␉opcode = rebase_stream[i] & REBASE_OPCODE_MASK;␊
␉␉␊
␉␉␊
␉␉switch(opcode)␊
␉␉{␊
␉␉␉case REBASE_OPCODE_DONE:␊
␉␉␉␉// Rebase complete, reset vars␊
␉␉␉␉immediate = 0;␊
␉␉␉␉opcode = 0;␊
␉␉␉␉type = 0;␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉default:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_SET_TYPE_IMM:␊
␉␉␉␉type = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:␊
␉␉␉␉// Locate address to begin rebasing␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉struct segment_command* segCommand = NULL; // NOTE: 32bit only␊
␉␉␉␉␊
␉␉␉␉unsigned int binIndex = 0;␊
␉␉␉␉index = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉segCommand = base + sizeof(struct mach_header) + binIndex;␊
␉␉␉␉␉␊
␉␉␉␉␉␊
␉␉␉␉␉binIndex += segCommand->cmdsize;␊
␉␉␉␉␉index++;␊
␉␉␉␉}␊
␉␉␉␉while(index <= immediate);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉segmentAddress = segCommand->fileoff;␊
␉␉␉␉␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉segmentAddress += tmp;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_ADD_ADDR_ULEB:␊
␉␉␉␉// Add value to rebase address␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp <<= bits;␊
␉␉␉␉␉tmp |= rebase_stream[++i] & 0x7f;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉segmentAddress +=␉tmp; ␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_ADD_ADDR_IMM_SCALED:␊
␉␉␉␉segmentAddress += immediate * sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_IMM_TIMES:␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < immediate; ++index) {␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ULEB_TIMES:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < tmp; ++index) {␊
␉␉␉␉␉//DBG("\tRebasing 0x%X\n", segmentAddress);␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␉␉␉␉␉␊
␉␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␊
␉␉␉␉segmentAddress += tmp + sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉tmp2 = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp2 |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < tmp; ++index) {␊
␉␉␉␉␉␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␉␊
␉␉␉␉␉segmentAddress += tmp2 + sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉}␊
␉␉i++;␊
␉}␊
}␊
␊
inline void rebase_location(UInt32* location, char* base, int type)␊
{␉␊
␉switch(type)␊
␉{␊
␉␉case REBASE_TYPE_POINTER:␊
␉␉case REBASE_TYPE_TEXT_ABSOLUTE32:␊
␉␉␉*location += (UInt32)base;␊
␉␉␉break;␊
␉␉␉␊
␉␉default:␊
␉␉␉break;␊
␉}␊
}␊
␊
␊
UInt32 read_uleb(UInt8* bind_stream, unsigned int* i)␊
{␊
// Read in offset␊
UInt32 tmp = 0;␊
UInt8 bits = 0;␊
do␊
{␊
if(bits < sizeof(UInt32)*8) // hack␊
{␊
tmp |= (bind_stream[++(*i)] & 0x7f) << bits;␊
bits += 7;␊
}␊
else␊
{␊
++(*i);␊
}␊
}␊
while(bind_stream[*i] & 0x80);␊
return tmp;␊
}␊
␊
␊
// Based on code from dylibinfo.cpp and ImageLoaderMachOCompressed.cpp␊
// NOTE: this uses 32bit values, and not 64bit values. ␊
// There is a possibility that this could cause issues,␊
// however the modules are 32 bits, so it shouldn't matter too much␊
void bind_macho(void* base, UInt8* bind_stream, UInt32 size)␊
{␉␊
␉bind_stream += (UInt32)base;␊
␉␊
␉UInt8 immediate = 0;␊
␉UInt8 opcode = 0;␊
␉UInt8 type = BIND_TYPE_POINTER;␊
␉␊
␉UInt32 segmentAddress = 0;␊
␉␊
␉UInt32 address = 0;␊
␉␊
␉SInt32 addend = 0;␊
␉SInt32 libraryOrdinal = 0;␊
␉␊
␉const char* symbolName = NULL;␊
␉UInt8 symboFlags = 0;␊
␉UInt32 symbolAddr = 0xFFFFFFFF;␊
␉␊
␉// Temperary variables␊
␉UInt32 tmp = 0;␊
␉UInt32 tmp2 = 0;␊
␉UInt32 index = 0;␊
␉unsigned int i = 0;␊
␉␊
␉while(i < size)␊
␉{␊
␉␉immediate = bind_stream[i] & BIND_IMMEDIATE_MASK;␊
␉␉opcode = bind_stream[i] & BIND_OPCODE_MASK;␊
␉␉␊
␉␉␊
␉␉switch(opcode)␊
␉␉{␊
␉␉␉case BIND_OPCODE_DONE:␊
␉␉␉␉// reset vars␊
␉␉␉␉type = BIND_TYPE_POINTER;␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉address = 0;␊
␉␉␉␉addend = 0;␊
␉␉␉␉libraryOrdinal = 0;␊
␉␉␉␉symbolAddr = 0xFFFFFFFF;␊
␉␉␉default:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_ORDINAL_IMM:␊
␉␉␉␉libraryOrdinal = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB:␊
␉␉␉␉libraryOrdinal = read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_SPECIAL_IMM:␊
␉␉␉␉libraryOrdinal = immediate ? (SInt8)(BIND_OPCODE_MASK | immediate) : immediate;␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM:␊
␉␉␉␉symboFlags = immediate;␊
␉␉␉␉symbolName = (char*)&bind_stream[++i];␊
␉␉␉␉i += strlen((char*)&bind_stream[i]);␊
␊
␉␉␉␉symbolAddr = lookup_all_symbols(symbolName);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_TYPE_IMM:␊
␉␉␉␉type = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_ADDEND_SLEB:␊
␉␉␉␉addend = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉if(!(bind_stream[i-1] & 0x40)) addend *= -1;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉␊
␉␉␉␉// Locate address␊
␉␉␉␉struct segment_command* segCommand = NULL;␉// NOTE: 32bit only␊
␉␉␉␉␊
␉␉␉␉unsigned int binIndex = 0;␊
␉␉␉␉index = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉segCommand = base + sizeof(struct mach_header) + binIndex;␊
␉␉␉␉␉binIndex += segCommand->cmdsize;␊
␉␉␉␉␉index++;␊
␉␉␉␉}␊
␉␉␉␉while(index <= immediate);␊
␉␉␉␉␊
␉␉␉␉segmentAddress = segCommand->fileoff;␊
␉␉␉␉␉␉␉␉␊
␉␉␉␉segmentAddress += read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_ADD_ADDR_ULEB:␊
␉␉␉␉segmentAddress += read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND:␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉␊
␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB:␊
␉␉␉␉// Read in offset␊
␉␉␉␉tmp = read_uleb(bind_stream, &i);␊
␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␊
␉␉␉␉segmentAddress += tmp + sizeof(void*);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED:␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉segmentAddress += (immediate * sizeof(void*)) + sizeof(void*);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB:␊
␉␉␉␉tmp = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉tmp2 = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉for(index = 0; index < tmp; index++)␊
␉␉␉␉␉{␊
␉␉␉␉␉␉␊
␉␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉␉␉segmentAddress += tmp2 + sizeof(void*);␊
␉␉␉␉␉}␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉}␊
␉␉i++;␊
␉}␊
}␊
␊
␊
inline void bind_location(UInt32* location, char* value, UInt32 addend, int type)␊
{␉␊
␉// do actual update␊
␉char* newValue = value + addend;␊
␉␊
␉switch (type) {␊
␉␉case BIND_TYPE_POINTER:␊
␉␉case BIND_TYPE_TEXT_ABSOLUTE32:␊
␉␉␉break;␊
␉␉␉␊
␉␉case BIND_TYPE_TEXT_PCREL32:␊
␉␉␉newValue -= ((UInt32)location + 4);␊
␉␉␉␊
␉␉␉break;␊
␉␉default:␊
␉␉␉return;␊
␉}␊
␉//DBG("Binding 0x%X to 0x%X (was 0x%X)\n", location, newValue, *location);␊
␉*location = (UInt32)newValue;␊
}␊
␊
/*␊
* Locate the symbol for an already loaded function and modify the beginning of␊
* the function to jump directly to the new one␊
* example: replace_function("_HelloWorld_start", &replacement_start);␊
*/␊
int replace_function(const char* symbol, void* newAddress)␊
{␊
␉UInt32* jumpPointer = malloc(sizeof(UInt32*));␉ ␊
␉UInt32 addr = lookup_all_symbols(symbol);␊
␉␊
␉char* binary = (char*)addr;␊
␉if(addr != 0xFFFFFFFF)␊
␉{␊
␉␉//DBG("Replacing %s to point to 0x%x\n", symbol, newAddress);␊
␉␉*binary++ = 0xFF;␉// Jump␊
␉␉*binary++ = 0x25;␉// Long Jump␊
␉␉*((UInt32*)binary) = (UInt32)jumpPointer;␊
␉␉␊
␉␉*jumpPointer = (UInt32)newAddress;␊
␉␉return 1;␊
␉}␊
␉return 0;␊
}␊
␊
/********************************************************************************/␊
/*␉dyld / Linker Interface␉␉␉␉␉␉␉␉␉␉␉␉␉␉*/␊
/********************************************************************************/␊
␊
void dyld_stub_binder()␊
{␊
␉printf("ERROR: dyld_stub_binder was called, should have been take care of by the linker.\n");␊
␉getchar();␊
}
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␊
#include "boot.h"␊
#include "modules.h"␊
#include <vers.h>␊
//#include <vers.h>␊
␊
extern void start_built_in_modules();␊
␊
␉else return lookup_all_symbols(VOID_SYMBOL);␉␊
}␊
␊
/********************************************************************************/␊
/*␉Macho Parser␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉*/␊
/********************************************************************************/␊
␊
/*␊
* Parse through a macho module. The module will be rebased and binded␊
* as specified in the macho header. If the module is sucessfuly laoded␊
* the module iinit address will be returned.␊
* NOTE; all dependecies will be loaded before this module is started␊
* NOTE: If the module is unable to load ot completeion, the modules␊
* symbols will still be available.␊
*/␊
void* parse_mach(void* binary, ␊
int(*dylib_loader)(char*), ␊
long long(*symbol_handler)(char*, long long, char),␊
void (*section_handler)(char* section, char* segment, long long offset, long long address)␊
)␊
{␉␊
␉char is64 = false;␊
␉void (*module_start)(void) = NULL;␊
␉␊
␉// Module info␊
␉/*char* moduleName = NULL;␊
␉ UInt32 moduleVersion = 0;␊
␉ UInt32 moduleCompat = 0;␊
␉ */␊
␉// TODO convert all of the structs to a union␊
␉struct load_command *loadCommand = NULL;␊
␉struct dylib_command* dylibCommand = NULL;␊
␉struct dyld_info_command* dyldInfoCommand = NULL;␊
␉␊
␉struct symtab_command* symtabCommand = NULL;␊
␉struct segment_command *segCommand = NULL;␊
␉struct segment_command_64 *segCommand64 = NULL;␊
␉␊
␉//struct dysymtab_command* dysymtabCommand = NULL;␊
␉UInt32 binaryIndex = 0;␊
␉UInt16 cmd = 0;␊
␉␊
␉textSection = 0;␊
␉textAddress = 0;␉// reinitialize text location in case it doesn't exist;␊
␉␊
␉// Parse through the load commands␊
␉if(((struct mach_header*)binary)->magic == MH_MAGIC)␊
␉{␊
␉␉is64 = false;␊
␉␉binaryIndex += sizeof(struct mach_header);␊
␉}␊
␉else if(((struct mach_header_64*)binary)->magic == MH_MAGIC_64)␊
␉{␊
␉␉// NOTE: modules cannot be 64bit...␊
␉␉is64 = true;␊
␉␉binaryIndex += sizeof(struct mach_header_64);␊
␉}␊
␉else␊
␉{␊
␉␉verbose("Invalid mach magic 0x%X\n", ((struct mach_header*)binary)->magic);␊
␉␉//getchar();␊
␉␉return NULL;␊
␉}␊
␉␊
␉␊
␉␊
␉/*if(((struct mach_header*)binary)->filetype != MH_DYLIB)␊
␉ {␊
␉ printf("Module is not a dylib. Unable to load.\n");␊
␉ getchar();␊
␉ return NULL; // Module is in the incorrect format␊
␉ }*/␊
␉␊
␉while(cmd < ((struct mach_header*)binary)->ncmds)␊
␉{␊
␉␉cmd++;␊
␉␉␊
␉␉loadCommand = binary + binaryIndex;␊
␉␉UInt32 cmdSize = loadCommand->cmdsize;␊
␉␉␊
␉␉␊
␉␉switch ((loadCommand->cmd & 0x7FFFFFFF))␊
␉␉{␊
␉␉␉case LC_SYMTAB:␊
␉␉␉␉symtabCommand = binary + binaryIndex;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_SEGMENT: // 32bit macho␊
{␊
segCommand = binary + binaryIndex;␊
␊
UInt32 sectionIndex;␊
␊
sectionIndex = sizeof(struct segment_command);␊
␊
struct section *sect;␊
␊
while(sectionIndex < segCommand->cmdsize)␊
{␊
sect = binary + binaryIndex + sectionIndex;␊
␊
sectionIndex += sizeof(struct section);␊
␊
if(section_handler) section_handler(sect->sectname, segCommand->segname, sect->offset, sect->addr);␊
␊
␊
␊
if((strcmp("__TEXT", segCommand->segname) == 0) && (strcmp("__text", sect->sectname) == 0))␊
{␊
// __TEXT,__text found, save the offset and address for when looking for the calls.␊
textSection = sect->offset;␊
textAddress = sect->addr;␊
}␉␉␉␉␉␊
}␊
}␊
␉␉␉␉break;␊
␉␉␉case LC_SEGMENT_64:␉// 64bit macho's␊
{␊
segCommand64 = binary + binaryIndex;␉␉␉␉␊
UInt32 sectionIndex;␊
␊
sectionIndex = sizeof(struct segment_command_64);␊
␊
struct section_64 *sect;␊
␊
while(sectionIndex < segCommand64->cmdsize)␊
{␊
sect = binary + binaryIndex + sectionIndex;␊
␊
sectionIndex += sizeof(struct section_64);␊
␊
if(section_handler) section_handler(sect->sectname, segCommand->segname, sect->offset, sect->addr);␊
␊
␊
if((strcmp("__TEXT", segCommand->segname) == 0) && (strcmp("__text", sect->sectname) == 0))␊
{␊
// __TEXT,__text found, save the offset and address for when looking for the calls.␊
textSection = sect->offset;␊
textAddress = sect->addr;␊
}␉␉␉␉␉␊
}␉␊
␉␉␉␉}␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case LC_LOAD_DYLIB:␊
␉␉␉case LC_LOAD_WEAK_DYLIB ^ LC_REQ_DYLD:␊
␉␉␉␉dylibCommand = binary + binaryIndex;␊
␉␉␉␉char* module = binary + binaryIndex + ((UInt32)*((UInt32*)&dylibCommand->dylib.name));␊
␉␉␉␉// Possible enhancments: verify version␊
␉␉␉␉// =␉dylibCommand->dylib.current_version;␊
␉␉␉␉// =␉dylibCommand->dylib.compatibility_version;␊
␉␉␉␉if(dylib_loader)␊
␉␉␉␉{␊
␉␉␉␉␉char* name = malloc(strlen(module) + strlen(".dylib") + 1);␊
␉␉␉␉␉sprintf(name, "%s.dylib", module);␊
␉␉␉␉␉␊
␉␉␉␉␉if (!dylib_loader(name))␊
␉␉␉␉␉{␊
␉␉␉␉␉␉// NOTE: any symbols exported by dep will be replace with the void function␊
␉␉␉␉␉␉free(name);␊
␉␉␉␉␉}␊
␉␉␉␉}␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_ID_DYLIB:␊
␉␉␉␉dylibCommand = binary + binaryIndex;␊
␉␉␉␉/*moduleName =␉binary + binaryIndex + ((UInt32)*((UInt32*)&dylibCommand->dylib.name));␊
␉␉␉␉ moduleVersion =␉dylibCommand->dylib.current_version;␊
␉␉␉␉ moduleCompat =␉dylibCommand->dylib.compatibility_version;␊
␉␉␉␉ */␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_DYLD_INFO:␊
␉␉␉//case LC_DYLD_INFO_ONLY:␉// compressed info, 10.6+ macho files, already handeled␊
␉␉␉␉// Bind and rebase info is stored here␊
␉␉␉␉dyldInfoCommand = binary + binaryIndex;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case LC_DYSYMTAB:␊
␉␉␉case LC_UUID:␊
␉␉␉case LC_UNIXTHREAD:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉default:␊
␉␉␉␉DBG("Unhandled loadcommand 0x%X\n", loadCommand->cmd & 0x7FFFFFFF);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉}␊
␉␉␊
␉␉binaryIndex += cmdSize;␊
␉}␊
␊
␉// bind_macho uses the symbols, if the textAdd does not exist (Symbols.dylib, no code), addresses are static and not relative␊
␉module_start = (void*)handle_symtable((UInt32)binary, symtabCommand, symbol_handler, is64);␊
␉␊
␉if(dyldInfoCommand)␊
␉{␊
␉␉// Rebase the module before binding it.␊
␉␉if(dyldInfoCommand->rebase_off)␉␉rebase_macho(binary, (char*)dyldInfoCommand->rebase_off,␉dyldInfoCommand->rebase_size);␊
␉␉// Bind all symbols. ␊
␉␉if(dyldInfoCommand->bind_off)␉␉bind_macho(binary, (UInt8*)dyldInfoCommand->bind_off,␉␉dyldInfoCommand->bind_size);␊
␉␉if(dyldInfoCommand->weak_bind_off)␉bind_macho(binary, (UInt8*)dyldInfoCommand->weak_bind_off,␉dyldInfoCommand->weak_bind_size);␊
␉␉if(dyldInfoCommand->lazy_bind_off)␉bind_macho(binary, (UInt8*)dyldInfoCommand->lazy_bind_off,␉dyldInfoCommand->lazy_bind_size);␊
␉}␊
␉␊
␉return module_start;␊
␉␊
}␊
␊
/*␊
* parse the symbol table␊
* Lookup any undefined symbols␊
*/␊
␊
unsigned int handle_symtable(UInt32 base, struct symtab_command* symtabCommand, long long(*symbol_handler)(char*, long long, char), char is64)␊
{␊
␉unsigned int module_start␉= 0xFFFFFFFF;␉␊
␉UInt32 symbolIndex␉␉␉= 0;␊
␉char* symbolString␉␉␉= base + (char*)symtabCommand->stroff;␊
␊
␉if(!is64)␊
␉{␊
␉␉struct nlist* symbolEntry = (void*)base + symtabCommand->symoff;␊
␉␉while(symbolIndex < symtabCommand->nsyms)␊
␉␉{␊
␉␉␉// If the symbol is exported by this module␊
␉␉␉if(symbolEntry->n_value &&␊
␉␉␉ symbol_handler(symbolString + symbolEntry->n_un.n_strx, textAddress ? (long long)base + symbolEntry->n_value : symbolEntry->n_value, is64) != 0xFFFFFFFF)␊
␉␉␉{␊
␉␉␉␉␊
␉␉␉␉// Module start located. Start is an alias so don't register it␊
␉␉␉␉module_start = textAddress ? base + symbolEntry->n_value : symbolEntry->n_value;␊
␉␉␉}␊
␉␉␉␊
␉␉␉symbolEntry++;␊
␉␉␉symbolIndex++;␉// TODO remove␊
␉␉}␊
␉}␊
␉else␊
␉{␊
␉␉struct nlist_64* symbolEntry = (void*)base + symtabCommand->symoff;␊
␉␉// NOTE First entry is *not* correct, but we can ignore it (i'm getting radar:// right now, verify later)␉␊
␉␉while(symbolIndex < symtabCommand->nsyms)␊
␉␉{␊
␉␉␉␊
␉␉␉␊
␉␉␉// If the symbol is exported by this module␊
␉␉␉if(symbolEntry->n_value &&␊
␉␉␉ symbol_handler(symbolString + symbolEntry->n_un.n_strx, textAddress ? (long long)base + symbolEntry->n_value : symbolEntry->n_value, is64) != 0xFFFFFFFF)␊
␉␉␉{␊
␉␉␉␉␊
␉␉␉␉// Module start located. Start is an alias so don't register it␊
␉␉␉␉module_start = textAddress ? base + symbolEntry->n_value : symbolEntry->n_value;␊
␉␉␉}␊
␉␉␉␊
␉␉␉symbolEntry++;␊
␉␉␉symbolIndex++;␉// TODO remove␊
␉␉}␊
␉}␊
␉return module_start;␊
}␊
␊
// Based on code from dylibinfo.cpp and ImageLoaderMachOCompressed.cpp␊
void rebase_macho(void* base, char* rebase_stream, UInt32 size)␊
{␊
␉rebase_stream += (UInt32)base;␊
␉␊
␉UInt8 immediate = 0;␊
␉UInt8 opcode = 0;␊
␉UInt8 type = 0;␊
␉UInt32 segmentAddress = 0;␊
␉␊
␉␊
␉UInt32 tmp = 0;␊
␉UInt32 tmp2 = 0;␊
␉UInt8 bits = 0;␊
␉int index = 0;␊
␉unsigned int i = 0;␊
␉␊
␉while(i < size)␊
␉{␊
␉␉immediate = rebase_stream[i] & REBASE_IMMEDIATE_MASK;␊
␉␉opcode = rebase_stream[i] & REBASE_OPCODE_MASK;␊
␉␉␊
␉␉␊
␉␉switch(opcode)␊
␉␉{␊
␉␉␉case REBASE_OPCODE_DONE:␊
␉␉␉␉// Rebase complete, reset vars␊
␉␉␉␉immediate = 0;␊
␉␉␉␉opcode = 0;␊
␉␉␉␉type = 0;␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉default:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_SET_TYPE_IMM:␊
␉␉␉␉type = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:␊
␉␉␉␉// Locate address to begin rebasing␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉struct segment_command* segCommand = NULL; // NOTE: 32bit only␊
␉␉␉␉␊
␉␉␉␉unsigned int binIndex = 0;␊
␉␉␉␉index = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉segCommand = base + sizeof(struct mach_header) + binIndex;␊
␉␉␉␉␉␊
␉␉␉␉␉␊
␉␉␉␉␉binIndex += segCommand->cmdsize;␊
␉␉␉␉␉index++;␊
␉␉␉␉}␊
␉␉␉␉while(index <= immediate);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉segmentAddress = segCommand->fileoff;␊
␉␉␉␉␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉segmentAddress += tmp;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_ADD_ADDR_ULEB:␊
␉␉␉␉// Add value to rebase address␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp <<= bits;␊
␉␉␉␉␉tmp |= rebase_stream[++i] & 0x7f;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉segmentAddress +=␉tmp; ␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_ADD_ADDR_IMM_SCALED:␊
␉␉␉␉segmentAddress += immediate * sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_IMM_TIMES:␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < immediate; ++index) {␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ULEB_TIMES:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < tmp; ++index) {␊
␉␉␉␉␉//DBG("\tRebasing 0x%X\n", segmentAddress);␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␉␉␉␉␉␊
␉␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ADD_ADDR_ULEB:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␊
␉␉␉␉segmentAddress += tmp + sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case REBASE_OPCODE_DO_REBASE_ULEB_TIMES_SKIPPING_ULEB:␊
␉␉␉␉tmp = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉tmp2 = 0;␊
␉␉␉␉bits = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉tmp2 |= (rebase_stream[++i] & 0x7f) << bits;␊
␉␉␉␉␉bits += 7;␊
␉␉␉␉}␊
␉␉␉␉while(rebase_stream[i] & 0x80);␊
␉␉␉␉␊
␉␉␉␉index = 0;␊
␉␉␉␉for (index = 0; index < tmp; ++index) {␊
␉␉␉␉␉␊
␉␉␉␉␉rebase_location(base + segmentAddress, (char*)base, type);␊
␉␉␉␉␉␊
␉␉␉␉␉segmentAddress += tmp2 + sizeof(void*);␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉}␊
␉␉i++;␊
␉}␊
}␊
␊
inline void rebase_location(UInt32* location, char* base, int type)␊
{␉␊
␉switch(type)␊
␉{␊
␉␉case REBASE_TYPE_POINTER:␊
␉␉case REBASE_TYPE_TEXT_ABSOLUTE32:␊
␉␉␉*location += (UInt32)base;␊
␉␉␉break;␊
␉␉␉␊
␉␉default:␊
␉␉␉break;␊
␉}␊
}␊
␊
␊
UInt32 read_uleb(UInt8* bind_stream, unsigned int* i)␊
{␊
// Read in offset␊
UInt32 tmp = 0;␊
UInt8 bits = 0;␊
do␊
{␊
if(bits < sizeof(UInt32)*8) // hack␊
{␊
tmp |= (bind_stream[++(*i)] & 0x7f) << bits;␊
bits += 7;␊
}␊
else␊
{␊
++(*i);␊
}␊
}␊
while(bind_stream[*i] & 0x80);␊
return tmp;␊
}␊
␊
␊
// Based on code from dylibinfo.cpp and ImageLoaderMachOCompressed.cpp␊
// NOTE: this uses 32bit values, and not 64bit values. ␊
// There is a possibility that this could cause issues,␊
// however the modules are 32 bits, so it shouldn't matter too much␊
void bind_macho(void* base, UInt8* bind_stream, UInt32 size)␊
{␉␊
␉bind_stream += (UInt32)base;␊
␉␊
␉UInt8 immediate = 0;␊
␉UInt8 opcode = 0;␊
␉UInt8 type = BIND_TYPE_POINTER;␊
␉␊
␉UInt32 segmentAddress = 0;␊
␉␊
␉UInt32 address = 0;␊
␉␊
␉SInt32 addend = 0;␊
␉SInt32 libraryOrdinal = 0;␊
␉␊
␉const char* symbolName = NULL;␊
␉UInt8 symboFlags = 0;␊
␉UInt32 symbolAddr = 0xFFFFFFFF;␊
␉␊
␉// Temperary variables␊
␉UInt32 tmp = 0;␊
␉UInt32 tmp2 = 0;␊
␉UInt32 index = 0;␊
␉unsigned int i = 0;␊
␉␊
␉while(i < size)␊
␉{␊
␉␉immediate = bind_stream[i] & BIND_IMMEDIATE_MASK;␊
␉␉opcode = bind_stream[i] & BIND_OPCODE_MASK;␊
␉␉␊
␉␉␊
␉␉switch(opcode)␊
␉␉{␊
␉␉␉case BIND_OPCODE_DONE:␊
␉␉␉␉// reset vars␊
␉␉␉␉type = BIND_TYPE_POINTER;␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉address = 0;␊
␉␉␉␉addend = 0;␊
␉␉␉␉libraryOrdinal = 0;␊
␉␉␉␉symbolAddr = 0xFFFFFFFF;␊
␉␉␉default:␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_ORDINAL_IMM:␊
␉␉␉␉libraryOrdinal = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_ORDINAL_ULEB:␊
␉␉␉␉libraryOrdinal = read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_DYLIB_SPECIAL_IMM:␊
␉␉␉␉libraryOrdinal = immediate ? (SInt8)(BIND_OPCODE_MASK | immediate) : immediate;␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_SYMBOL_TRAILING_FLAGS_IMM:␊
␉␉␉␉symboFlags = immediate;␊
␉␉␉␉symbolName = (char*)&bind_stream[++i];␊
␉␉␉␉i += strlen((char*)&bind_stream[i]);␊
␊
␉␉␉␉symbolAddr = lookup_all_symbols(symbolName);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_TYPE_IMM:␊
␉␉␉␉type = immediate;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_ADDEND_SLEB:␊
␉␉␉␉addend = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉if(!(bind_stream[i-1] & 0x40)) addend *= -1;␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_SET_SEGMENT_AND_OFFSET_ULEB:␊
␉␉␉␉segmentAddress = 0;␊
␉␉␉␉␊
␉␉␉␉// Locate address␊
␉␉␉␉struct segment_command* segCommand = NULL;␉// NOTE: 32bit only␊
␉␉␉␉␊
␉␉␉␉unsigned int binIndex = 0;␊
␉␉␉␉index = 0;␊
␉␉␉␉do␊
␉␉␉␉{␊
␉␉␉␉␉segCommand = base + sizeof(struct mach_header) + binIndex;␊
␉␉␉␉␉binIndex += segCommand->cmdsize;␊
␉␉␉␉␉index++;␊
␉␉␉␉}␊
␉␉␉␉while(index <= immediate);␊
␉␉␉␉␊
␉␉␉␉segmentAddress = segCommand->fileoff;␊
␉␉␉␉␉␉␉␉␊
␉␉␉␉segmentAddress += read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_ADD_ADDR_ULEB:␊
␉␉␉␉segmentAddress += read_uleb(bind_stream, &i);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND:␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉␊
␉␉␉␉segmentAddress += sizeof(void*);␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ADD_ADDR_ULEB:␊
␉␉␉␉// Read in offset␊
␉␉␉␉tmp = read_uleb(bind_stream, &i);␊
␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␊
␉␉␉␉segmentAddress += tmp + sizeof(void*);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ADD_ADDR_IMM_SCALED:␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␊
␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉segmentAddress += (immediate * sizeof(void*)) + sizeof(void*);␊
␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉break;␊
␉␉␉␉␊
␉␉␉case BIND_OPCODE_DO_BIND_ULEB_TIMES_SKIPPING_ULEB:␊
␉␉␉␉tmp = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉tmp2 = read_uleb(bind_stream, &i);␉␉␉␉␊
␉␉␉␉␊
␉␉␉␉if(symbolAddr != 0xFFFFFFFF)␊
␉␉␉␉{␊
␉␉␉␉␉for(index = 0; index < tmp; index++)␊
␉␉␉␉␉{␊
␉␉␉␉␉␉␊
␉␉␉␉␉␉address = segmentAddress + (UInt32)base;␊
␉␉␉␉␉␉bind_location((UInt32*)address, (char*)symbolAddr, addend, type);␊
␉␉␉␉␉␉segmentAddress += tmp2 + sizeof(void*);␊
␉␉␉␉␉}␊
␉␉␉␉}␊
␉␉␉␉else␊
␉␉␉␉{␊
␉␉␉␉␉printf("Unable to bind symbol %s\n", symbolName);␊
␉␉␉␉␉getchar();␊
␉␉␉␉}␊
␉␉␉␉break;␊
␉␉}␊
␉␉i++;␊
␉}␊
}␊
␊
␊
inline void bind_location(UInt32* location, char* value, UInt32 addend, int type)␊
{␉␊
␉// do actual update␊
␉char* newValue = value + addend;␊
␉␊
␉switch (type) {␊
␉␉case BIND_TYPE_POINTER:␊
␉␉case BIND_TYPE_TEXT_ABSOLUTE32:␊
␉␉␉break;␊
␉␉␉␊
␉␉case BIND_TYPE_TEXT_PCREL32:␊
␉␉␉newValue -= ((UInt32)location + 4);␊
␉␉␉␊
␉␉␉break;␊
␉␉default:␊
␉␉␉return;␊
␉}␊
␉//DBG("Binding 0x%X to 0x%X (was 0x%X)\n", location, newValue, *location);␊
␉*location = (UInt32)newValue;␊
}␊
␊
/********************************************************************************/␊
/*␉Module Hook Interface␉␉␉␉␉␉␉␉␉␉␉␉␉␉*/␊
/********************************************************************************/␊
␊
/*␊
* Locate the symbol for an already loaded function and modify the beginning of␊
* the function to jump directly to the new one␊
* example: replace_function("_HelloWorld_start", &replacement_start);␊
*/␊
int replace_function(const char* symbol, void* newAddress)␊
{␊
␉UInt32* jumpPointer = malloc(sizeof(UInt32*));␉ ␊
␉UInt32 addr = lookup_all_symbols(symbol);␊
␉␊
␉char* binary = (char*)addr;␊
␉if(addr != 0xFFFFFFFF)␊
␉{␊
␉␉//DBG("Replacing %s to point to 0x%x\n", symbol, newAddress);␊
␉␉*binary++ = 0xFF;␉// Jump␊
␉␉*binary++ = 0x25;␉// Long Jump␊
␉␉*((UInt32*)binary) = (UInt32)jumpPointer;␊
␉␉␊
␉␉*jumpPointer = (UInt32)newAddress;␊
␉␉return 1;␊
␉}␊
␉return 0;␊
}␊
␊
␊
/*␊
*␉execute_hook( const char* name )␊
*␉␉name - Name of the module hook␊
branches/xZen/src/modules/ModuleSystem/Makefile
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␊
DIR = ModuleSystem␊
␊
MODULE_OBJS = modules_support modules␊
MODULE_OBJS = macho modules_support modules␊
␊
include ../MakeInc.dir
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DIR = HelloWorld␊
␊
MODULE_OBJS = HelloWorld.o␊
MODULE_OBJS = HelloWorld␊
␊
include ../MakeInc.dir
branches/xZen/src/modules/Makefile
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include ${ROOT}/Make.rules␊
␊
# The order of building is important.␊
SUBDIRS = ModuleSystem klibc uClibcxx HelloWorld Disk FileSystem␊
SUBDIRS = klibc uClibcxx HelloWorld Disk FileSystem␊
# ModuleSystem␊
␊
␊
CFLAGS= -O3 $(MORECPP) -arch i386 -g -static␊
CFLAGS= -O3 $(MORECPP) -g -static␊
DEFINES=␊
CONFIG = hd␊
LIBSAIODIR = $(SRCROOT)/i386/libsaio␊
branches/xZen/src/i386/Make.rules
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␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␊
##### x86_64 Rules #####␊
$(OBJROOT)/%.i386o: %.s␊
␉@echo "\t[AS:I386] $<"␊
␉@$(X86_CC) $(CPPFLAGS) -c $(INC) -arch i386 -o $@ $< \␊
␉␉ -MD -dependency-file $*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $*.d␊
␊
$(OBJROOT)/%.x86_64o: %.c $(OBJROOT)␊
␉@echo "\t[CC:X86_64] $<"␊
␉@$(X86_CC) -arch x86_64 $(CFLAGS) $(DEFINES) -c $(INC) $< -o $@ \␊
␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␊
$(OBJROOT)/%.x86_64o: %.m $(OBJROOT)␊
␉@echo "\t[M:X86_64] $<"␊
␉@$(X86_CC) -arch x86_64 $(CFLAGS) $(DEFINES) -c $(INC) $< -o $@ \␊
␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␊
$(OBJROOT)/%.x86_64o: %.x86_64 $(OBJROOT)␊
␉@echo "\t[CPP:X86_64] $<"␊
␉@$(X86_CPP) -arch i386 $(CPPFLAGS) $(CFLAGS) -c "$<" $(INC) -o $@ \␊
␉ -MD -dependency-file $(OBJROOT)/$*.d␊
␉@md -u $(OBJROOT)/Makedep -f -d $(OBJROOT)/$*.d␊
␉␊
␉␊
ACTUAL_OBJECTS := ${ACTUAL_OBJECTS} $(addsuffix .i386o , $(addprefix $(OBJROOT)/, $(OBJECTS)))␊
ACTUAL_OBJECTS := ${ACTUAL_OBJECTS} $(addsuffix .x86_64o, $(addprefix $(OBJROOT)/, $(OBJECTS)))␊
␊
MODULE_OBJECTS := ${MODULE_OBJECTS} $(addsuffix .i386o, $(addprefix $(OBJROOT)/, $(MODULE_OBJS)))␊
MODULE_OBJECTS := ${MODULE_OBJECTS} $(addsuffix .x86_64o, $(addprefix $(OBJROOT)/, $(MODULE_OBJS)))
branches/xZen/src/i386/libsa/Makefile
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ROOT = $(shell pwd)/../../␊
ROOT = $(shell pwd)/../../../␊
DIR = libsa␊
SRCROOT = ${ROOT}/src␊
OBJROOT = $(ROOT)/obj/i386␊
SYMROOT = $(ROOT)/sym/i386␊
DSTROOT = $(ROOT)/dst/usr/standalone/i386␊
OBJROOT = $(ROOT)/obj/i386/${DIR}␊
SYMROOT = $(ROOT)/sym/util␊
DSTROOT = $(ROOT)/dst/usr/standalone/i386/␊
DOCROOT = $(ROOT)/doc␊
␊
DIR = libsa␊
include ${ROOT}/Make.rules␊
␊
LIBSAIODIR = ../libsaio␊
␊
CFLAGS␉:= $(CFLAGS) $(RC_CFLAGS) $(MORECPP) -arch i386 \␊
␉ -fno-builtin -static $(OMIT_FRAME_POINTER_CFLAG) \␊
␉ -mpreferred-stack-boundary=2 -fno-align-functions -fno-stack-protector \␊
␉ -march=pentium4 -msse2 -mfpmath=sse -msoft-float \␊
␉ -nostdinc -include $(SRCROOT)/autoconf.h␊
␊
CPPFLAGS := $(CPPFLAGS) -nostdinc++␊
␊
INC = -I. -I$(SYMROOT) -I$(LIBSAIODIR) -I${SRCROOT}/i386/include␊
INC = -I. -I$(SYMROOT) -I$(LIBSAIODIR) -I${SRCROOT}/include␊
␊
SA_OBJS = prf.o printf.o zalloc.o \␊
␉string.o strtol.o error.o \␊
␉setjmp.o qsort.o efi_tables.o␊
OBJECTS = prf printf zalloc \␊
␉string strtol error \␊
␉setjmp qsort efi_tables␊
␊
LIBS = libsa.a␊
LIBS := $(addprefix $(SYMROOT)/, $(LIBS))␊
␊
include ${SRCROOT}/i386/Make.rules␊
␊
␊
␊
DIRS_NEEDED = $(OBJROOT) $(SYMROOT)␊
␊
all embedtheme: $(DIRS_NEEDED) $(LIBS)␊
$(warning $(ACTUAL_OBJECTS))␊
␊
␊
$(LIBS): $(addprefix $(OBJROOT)/, $(SA_OBJS))␊
$(LIBS): ${ACTUAL_OBJECTS}␊
␉@echo "\t[RM] $@"␊
␉@rm -f $@␊
␉@echo "\t[AR] $(@F)"␊
␉@echo "\t[RANLIB] $(@F)"␊
␉@ranlib $@␊
␊
$(DIRS_NEEDED) $(INSTALLDIR) $(OBJROOT) $(SYMROOT):␊
␉@echo "\t[MKDIR] $@"␊
␉@$(MKDIRS) $@␊
␊
␊
# dependencies␊
-include $(OBJROOT)/Makedep␊
branches/xZen/src/i386/Makefile
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# The order of building is important.␊
SUBDIRS = libsa libsaio boot0 boot1 boot2 cdboot modules␊
␊
all:␊
all: ${OBJROOT} ${SYMROOT}␊
␉@#cd modules; ${MAKE} BUILT_IN=yes $@␊
␊
␊
␉␉␉cd $$i; ${MAKE}␉␉␉␉␉␉␉␉␉␉ \␊
␉␉␉$@ ␉␉␉ ␉␉␉␉␉␉␉␉␉␉ \␊
␉␉) || exit $$?; ␉␉␉␉␉␉␉␉␉␉␉ \␊
␉done␊
␊
config rebuild_config:␊
␉@for i in config; ␉␉␉␉␉␉␉␉␉␉␉ \␊
␉do␉␉␉␉␉␉␉␉␉␉␉␉␉␉␉ \␊
␉␉echo ================= make $@ for $$i =================; \␊
␉␉( ROOT=$(ROOT);␉␉␉␉␉␉␉␉␉␉ ␉ \␊
␉␉␉cd $$i; ${MAKE}␉␉␉␉␉␉␉␉␉␉ \␊
␉␉␉$@ ␉␉␉ ␉␉␉␉␉␉␉␉␉␉ \␊
␉␉) || exit $$?; ␉␉␉␉␉␉␉␉␉␉␉ \␊
␉done␊
␊
␊
.PHONY: config
␉done
branches/xZen/src/util/fdisk/Makefile
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SRCROOT = $(shell pwd)/../../../␊
override OBJROOT = $(SRCROOT)/obj/i386/util/fdisk␊
SYMROOT = $(SRCROOT)/sym/i386␊
DSTROOT = $(SRCROOT)/dst/i386␊
DOCROOT = $(SRCROOT)/doc␊
IMGROOT = $(SRCROOT)/sym/cache␊
IMGSKELROOT = $(SRCROOT)/imgskel␊
CDBOOT = ${IMGROOT}/usr/standalone/i386/cdboot␊
␊
ROOT = $(shell pwd)/../../../␊
DIR = fdisk␊
SRCROOT = ${ROOT}/src␊
OBJROOT = $(ROOT)/obj/util/${DIR}␊
SYMROOT = $(ROOT)/sym/util␊
DSTROOT = $(ROOT)/dst/usr/bin/␊
DOCROOT = $(ROOT)/doc␊
␊
OBJECTS = cmd disk fdisk getrawpartition mbr misc opendev part user auto␊
␊
LDFLAGS := $(LDFALGS) -mmacosx-version-min=10.5␊
branches/xZen/src/util/Makefile
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endif␊
␊
␊
LDFLAGS := $(LDFALGS) -framework IOKit -framework CoreFoundation -mmacosx-version-min=10.5␊
LDFLAGS := $(LDFALGS) -framework IOKit -framework CoreFoundation -mmacosx-version-min=10.4␊
␊
SYMPROG = $(addprefix $(SYMROOT)/, $(PROGRAMS))␊
␊
DIRS_NEEDED = $(OBJROOT) $(SYMROOT)␊
␊
␊
include ${SRCROOT}/../Make.rules␊
include ${ROOT}/Make.rules␊
␊
␊
␊

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Revision: 1247