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support darwin/x86_64

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This commit is contained in:
Joel Dice
2009-10-14 10:01:37 -06:00
parent 0ae02511c6
commit 7b0378c180
10 changed files with 90 additions and 41 deletions
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30
src/binaryToObject/mach-o.cpp
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@ -12,10 +12,12 @@
#include "stdio.h"
#include "string.h"
#define MH_MAGIC_64 0xfeedfacf
#define MH_MAGIC 0xfeedface
#define MH_OBJECT 1
#define LC_SEGMENT_64 0x19
#define LC_SEGMENT 1
#define LC_SYMTAB 2
@ -35,13 +37,19 @@
#define CPU_SUBTYPE_POWERPC_ALL 0
#if (BITS_PER_WORD == 64)
# define Magic MH_MAGIC_64
# define Segment LC_SEGMENT_64
# define FileHeader mach_header_64
# define SegmentCommand segment_command_64
# define Section section_64
# define NList struct nlist_64
#elif (BITS_PER_WORD == 32)
# define Magic MH_MAGIC
# define Segment LC_SEGMENT
# define FileHeader mach_header
# define SegmentCommand segment_command
# define Section section
# define NList struct nlist
#else
# error
#endif
@ -92,6 +100,16 @@ struct section_64 {
uint32_t reserved3;
};
struct nlist_64 {
union {
uint32_t n_strx;
} n_un;
uint8_t n_type;
uint8_t n_sect;
uint16_t n_desc;
uint64_t n_value;
};
struct mach_header {
uint32_t magic;
cpu_type_t cputype;
@ -173,7 +191,7 @@ writeObject(const uint8_t* data, unsigned size, FILE* out,
unsigned endNameLength = strlen(endName) + 1;
FileHeader header = {
MH_MAGIC, // magic
Magic, // magic
cpuType,
cpuSubType,
MH_OBJECT, // filetype,
@ -185,7 +203,7 @@ writeObject(const uint8_t* data, unsigned size, FILE* out,
};
SegmentCommand segment = {
LC_SEGMENT, // cmd
Segment, // cmd
sizeof(SegmentCommand) + sizeof(Section), // cmdsize
"", // segname
0, // vmaddr
@ -237,11 +255,11 @@ writeObject(const uint8_t* data, unsigned size, FILE* out,
+ sizeof(Section)
+ sizeof(symtab_command)
+ pad(size)
+ (sizeof(struct nlist) * 2), // stroff
+ (sizeof(NList) * 2), // stroff
1 + startNameLength + endNameLength, // strsize
};
struct nlist symbolList[] = {
NList symbolList[] = {
{
1, // n_un
N_SECT | N_EXT, // n_type
@ -284,7 +302,7 @@ bool
MAKE_NAME(writeMachO, BITS_PER_WORD, Object)
(uint8_t* data, unsigned size, FILE* out, const char* startName,
const char* endName, const char* architecture, unsigned alignment,
bool, bool executable)
bool writable, bool)
{
cpu_type_t cpuType;
cpu_subtype_t cpuSubType;
@ -304,7 +322,7 @@ MAKE_NAME(writeMachO, BITS_PER_WORD, Object)
const char* segmentName;
const char* sectionName;
if (executable) {
if (writable) {
segmentName = "__RWX";
sectionName = "__rwx";
} else {