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doesnt compile, changing the architecture

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This commit is contained in:
Jack Halford 2017-03-23 18:58:08 +01:00
parent 2189c15ce9
commit 83c2942694
8 changed files with 255 additions and 128 deletions
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10
nm-otool/Makefile
View file

@ -6,7 +6,7 @@
# By: jhalford <jack@crans.org> +#+ +:+ +#+ #
# +#+#+#+#+#+ +#+ #
# Created: 2017/02/19 03:29:38 by jhalford #+# #+# #
# Updated: 2017/03/01 16:00:29 by jhalford ### ########.fr #
# Updated: 2017/03/23 17:04:19 by jhalford ### ########.fr #
# #
# **************************************************************************** #
@ -35,10 +35,12 @@ FT_NM_OBJ = $(OBJ_DIR)ft_nm.o
FT_OTOOL_OBJ= $(OBJ_DIR)ft_otool.o
SRC_BASE = \
dump_symtab.c\
fetch_header.c\
ft_nm.c\
ft_otool.c\
hexdump.c
get_symbols.c\
hexdump.c\
symprint.c
SRCS = $(addprefix $(SRC_DIR), $(SRC_BASE))
OBJS = $(addprefix $(OBJ_DIR), $(SRC_BASE:.c=.o))
@ -51,6 +53,7 @@ OBJS := $(filter-out $(FT_OTOOL_OBJ), $(OBJS))
all: $(NAME)
ft_nm: $(LIBFT_LIB) $(OBJ_DIR) $(OBJS) $(FT_NM_OBJ)
@echo $(FT_NM_OBJ)
@$(CC) $(FLAGS) $(D_FLAGS) \
-I $(INC_DIR) \
-I $(LIBFT_INC) \
@ -72,7 +75,6 @@ ft_otool: $(LIBFT_LIB) $(OBJ_DIR) $(OBJS) $(FT_OTOOL_OBJ)
@strip -x $@
@printf "\r\e[48;5;15;38;5;25m✅ MAKE $@\e[0m\e[K\n"
$(OBJ_DIR)%.o: $(SRC_DIR)%.c | $(OBJ_DIR)
@$(eval DONE=$(shell echo $$(($(INDEX)*20/$(NB)))))
@$(eval PERCENT=$(shell echo $$(($(INDEX)*100/$(NB)))))

51
nm-otool/includes/ft_nm_otool.h
View file

@ -6,7 +6,7 @@
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/20 14:36:10 by jhalford #+# #+# */
/* Updated: 2017/03/01 17:52:35 by jhalford ### ########.fr */
/* Updated: 2017/03/23 17:04:06 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
@ -16,10 +16,12 @@
# include "libft.h"
# include <stdio.h>
# include <sys/mman.h>
# include <mach-o/loader.h>
# include <mach-o/nlist.h>
# include <mach-o/fat.h>
# include <mach/machine.h>
# include <fcntl.h>
# include <sys/stat.h>
# include <stdlib.h>
@ -27,7 +29,52 @@
# define IS_MAGIC_64(x) (x == MH_MAGIC_64 || x == MH_CIGAM_64)
# define IS_FAT(x) (x == FAT_MAGIC || x == FAT_CIGAM)
void dump_symtab(struct symtab_command *sym, struct dysymtab_command *dysym, void *file);
typedef enum e_symtype t_symtype;
typedef struct s_symbol t_symbol;
typedef struct s_symbolmap t_symbolmap;
typedef struct s_machodata t_machodata;
enum e_symtype
{
SYM_UNDEF,
SYM_ABS,
SYM_TEXT,
SYM_DATA,
SYM_BSS,
SYM_COMMON,
SYM_DEBUG,
SYM_OTHER,
SYM_INDIRECT,
};
struct s_machodata
{
struct symtab_command *symtab;
struct dysymtab_command *dysymtab;
};
struct s_symbol
{
t_symtype type;
long value;
char *name;
};
struct s_symbolmap
{
char c;
int (*format)();
};
extern t_symbolmap g_symbolmap[];
t_list *get_symbols(char *file);
int fetch_header(t_machodata *data, void *file);
int symprint(t_symbol *symbol);
int symprint_text(t_symbol *symbol);
void *hexdump(void *addr, unsigned int offset, unsigned int size);
#endif

2
nm-otool/libft

@ -1 +1 @@
Subproject commit 0ca8ca817f32fc0345ef93ef74a3abe2583bd89c
Subproject commit 04b8d5cd090e86b0f9d8160b01e49d43666deddf

61
nm-otool/src/dump_symtab.c
View file

@ -1,61 +0,0 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* dump_symtab.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/20 13:20:22 by jhalford #+# #+# */
/* Updated: 2017/03/01 17:55:11 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_nm_otool.h"
void dump_symtab(struct symtab_command *sym, struct dysymtab_command *dysym, void *file)
{
int i;
int nsyms;
char *stringtable;
char *string;
struct nlist_64 *array;
struct dylib_reference *ref;
nsyms = sym->nsyms;
array = file + sym->symoff;
stringtable = file + sym->stroff;
ft_printf("LC_SYMTAB [%d] symbols:\n", sym->nsyms);
i = 0;
while (++i < nsyms)
{
ft_printf("%s\n", stringtable + array[i].n_un.n_strx);
}
ft_putendl("");
ft_printf("ilocalsym %i\n", dysym->ilocalsym);
ft_printf("nlocalsym %i\n", dysym->nlocalsym);
ft_printf("iextdefsym %i\n", dysym->iextdefsym);
ft_printf("nextdefsym %i\n", dysym->nextdefsym);
ft_printf("iundefsym %i\n", dysym->iundefsym);
ft_printf("nundefsym %i\n", dysym->nundefsym);
i = -1;
ft_printf("LC_DYSYMTAB ntoc=[%d]\n", dysym->ntoc);
ft_printf("LC_DYSYMTAB nmodtab=[%d]\n", dysym->nmodtab);
ft_printf("LC_DYSYMTAB nextrefsyms=[%d]\n", dysym->nextrefsyms);
ft_printf("LC_DYSYMTAB nmodtab=[%d]\n", dysym->nmodtab);
ft_printf("LC_DYSYMTAB nindirectsyms=[%d]\n", dysym->nindirectsyms);
ft_printf("LC_DYSYMTAB nextrel=[%d]\n", dysym->nextrel);
ft_printf("LC_DYSYMTAB nlocrel=[%d]\n", dysym->nlocrel);
ft_putendl("");
ref = file + dysym->indirectsymoff;
while (++i < (int)dysym->nindirectsyms)
{
string = stringtable + array[ref->isym].n_un.n_strx;
ft_printf("%i: %s,%#x\n", ref->isym, string, ref->flags);
ref += 1;
}
(void)file;
}

68
nm-otool/src/fetch_header.c Normal file
View file

@ -0,0 +1,68 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* fetch_header.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/03/23 15:56:37 by jhalford #+# #+# */
/* Updated: 2017/03/23 16:25:49 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_nm_otool.h"
static void fetch_machheader64(t_machodata *data, void *file)
{
uint32_t ncmds;
uint32_t i;
struct load_command *lc;
struct mach_header_64 *header = file;
ncmds = header->ncmds;
lc = (void*)(header + 1);
/* ft_printf("{blu}{inv}mach_header_64 w/ [%d] load_commands{eoc}\n", ncmds); */
for (i = 0; i < ncmds; i++)
{
/* ft_printf("{yel}{inv}load_command #%d: %#x{eoc}\n", i, lc->cmd); */
if (lc->cmd == LC_SYMTAB)
data->symtab = (struct symtab_command*)lc;
else if (lc->cmd == LC_DYSYMTAB)
data->dysymtab = (struct dysymtab_command*)lc;
lc = (void*)lc + lc->cmdsize;
}
}
static void fetch_fatheader(t_machodata *data, void *file)
{
struct fat_header *header = file;
struct fat_arch *arch;
int i;
int nfat_arch;
nfat_arch = header->nfat_arch;
arch = (void*)(header + 1);
ft_printf("{yel}{inv}FAT header w/ [%i] architures{eoc}\n", nfat_arch);
for (i = 0; i < nfat_arch; i++)
{
ft_printf("CPU type=[%i]", arch->cputype);
fetch_machheader64(data, file + arch->offset);
arch += 1;
}
}
int fetch_header(t_machodata *data, void *file)
{
uint32_t magic = *(int *)file;
int is_fat = IS_FAT(magic);
int is_64 = IS_MAGIC_64(magic);
if (is_64)
fetch_machheader64(data, file);
if (is_fat)
fetch_fatheader(data, file);
else
ft_printf("{red}unsupported architecture:{eoc} magic = %#x\n", magic);
return (0);
}

79
nm-otool/src/ft_nm.c
View file

@ -6,15 +6,29 @@
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/19 03:09:12 by jhalford #+# #+# */
/* Updated: 2017/03/01 17:53:31 by jhalford ### ########.fr */
/* Updated: 2017/03/23 17:04:13 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_nm_otool.h"
t_symbolmap g_symbolmap[] =
{
{'U', NULL},
{'A', NULL},
{'T', symprint_text},
{'D', NULL},
{'B', NULL},
{'C', NULL},
{'-', NULL},
{'S', NULL},
{'I', NULL},
};
void dump_section_64(struct section_64 *sect)
{
ft_printf("section64: segname=[%s], sectname=[%s]\n", sect->segname, sect->sectname);
ft_printf("section64: segname=[%s], sectname=[%s]\n",
sect->segname, sect->sectname);
}
void dump_segment_64(struct segment_command_64 *seg, void *file)
@ -34,66 +48,12 @@ void dump_segment_64(struct segment_command_64 *seg, void *file)
}
}
void print_output(int nsyms, int symoff, int stroff, void *ptr);
void dump_mach_header_64(void *file)
{
uint32_t ncmds;
uint32_t i;
struct load_command *lc;
struct symtab_command *symtab;
struct dysymtab_command *dysymtab;
struct mach_header_64 *header = file;
ncmds = header->ncmds;
lc = (void*)(header + 1);
/* ft_printf("{blu}{inv}mach_header_64 w/ [%d] load_commands{eoc}\n", ncmds); */
for (i = 0; i < ncmds; i++)
{
/* ft_printf("{yel}{inv}load_command #%d: %#x{eoc}\n", i, lc->cmd); */
if (lc->cmd == LC_SYMTAB)
symtab = (struct symtab_command*)lc;
/* dump_symtab((struct symtab_command*)lc, file); */
else if (lc->cmd == LC_DYSYMTAB)
dysymtab = (struct dysymtab_command*)lc;
/* dump_dysymtab((struct dysymtab_command*)lc, file); */
/* else if (lc->cmd == LC_SEGMENT_64) */
/* dump_segment_64((struct segment_command_64*)lc, file); */
lc = (void*)lc + lc->cmdsize;
}
dump_symtab(symtab, dysymtab, file);
}
void dump_fat_header(void *file)
{
struct fat_header *header = file;
struct fat_arch *arch;
int i;
int nfat_arch;
nfat_arch = header->nfat_arch;
arch = (void*)(header + 1);
ft_printf("{yel}{inv}FAT header w/ [%i] architures{eoc}\n", nfat_arch);
for (i = 0; i < nfat_arch; i++)
{
ft_printf("CPU type=[%i]", arch->cputype);
dump_mach_header_64(file + arch->offset);
arch += 1;
}
}
void nm(void *file)
{
uint32_t magic = *(int *)file;
int is_fat = IS_FAT(magic);
int is_64 = IS_MAGIC_64(magic);
t_list *symbols;
if (is_fat)
dump_fat_header(file);
else if (is_64)
dump_mach_header_64(file);
else
ft_printf("{red}unsupported architecture:{eoc} magic = %#x\n", magic);
symbols = get_symbols(file);
ft_lstiter(symbols, symprint);
}
int main(int ac, char **av)
@ -101,7 +61,6 @@ int main(int ac, char **av)
int fd;
char *file;
struct stat buf;
if (ac != 2)
{
ft_dprintf(2, "Please give me an arg\n");

81
nm-otool/src/get_symbols.c Normal file
View file

@ -0,0 +1,81 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* dump_symtab.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/02/20 13:20:22 by jhalford #+# #+# */
/* Updated: 2017/03/23 16:49:03 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_nm_otool.h"
static t_flag get_symtype(uint32_t i, struct dysymtab_command *dysym)
{
if (dysym->ilocalsym <= i && i <= dysym->ilocalsym + dysym->nlocalsym)
return (SYM_DEBUG);
if (dysym->iextdefsym <= i && i <= dysym->iextdefsym + dysym->nextdefsym)
return (SYM_TEXT);
if (dysym->iundefsym <= i && i <= dysym->iundefsym + dysym->nundefsym)
return (SYM_UNDEF);
return (0);
}
t_list *get_symbols(char *file)
{
int i;
int nsyms;
char *stringtable;
char *string;
struct nlist_64 *array;
struct dylib_reference *ref;
t_symbol sym;
t_machodata data;
t_list *symbols;
fetch_header(&data, file);
nsyms = data.symtab->nsyms;
array = (struct nlist_64*)(file + data.symtab->symoff);
stringtable = file + data.symtab->stroff;
ft_printf("LC_SYMTAB [%d] symbols:\n", data.symtab->nsyms);
i = -1;
symbols = NULL;
while (++i < nsyms)
{
sym.name = stringtable + array[i].n_un.n_strx;
sym.type = get_symtype(i, data.dysymtab);
sym.value = 0;
ft_lstadd(&symbols, ft_lstnew(&sym, sizeof(sym)));
}
return (symbols);
ft_putendl("");
ft_printf("ilocalsym %i\n", data.dysymtab->ilocalsym);
ft_printf("nlocalsym %i\n", data.dysymtab->nlocalsym);
ft_printf("iextdefsym %i\n", data.dysymtab->iextdefsym);
ft_printf("nextdefsym %i\n", data.dysymtab->nextdefsym);
ft_printf("iundefsym %i\n", data.dysymtab->iundefsym);
ft_printf("nundefsym %i\n", data.dysymtab->nundefsym);
ft_printf("LC_DYSYMTAB ntoc=[%d]\n", data.dysymtab->ntoc);
ft_printf("LC_DYSYMTAB nmodtab=[%d]\n", data.dysymtab->nmodtab);
ft_printf("LC_DYSYMTAB nextrefsyms=[%d]\n", data.dysymtab->nextrefsyms);
ft_printf("LC_DYSYMTAB nmodtab=[%d]\n", data.dysymtab->nmodtab);
ft_printf("LC_DYSYMTAB nindirectsyms=[%d]\n", data.dysymtab->nindirectsyms);
ft_printf("LC_DYSYMTAB nextrel=[%d]\n", data.dysymtab->nextrel);
ft_printf("LC_DYSYMTAB nlocrel=[%d]\n", data.dysymtab->nlocrel);
ft_putendl("");
ref = (struct dylib_reference *)(file + data.dysymtab->indirectsymoff);
i = -1;
while (++i < (int)data.dysymtab->nindirectsyms)
{
string = stringtable + array[ref->isym].n_un.n_strx;
ft_printf("%i: %s,%#x\n", ref->isym, string, ref->flags);
ref += 1;
}
(void)file;
}

31
nm-otool/src/symprint.c Normal file
View file

@ -0,0 +1,31 @@
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* symprint.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2017/03/23 16:05:55 by jhalford #+# #+# */
/* Updated: 2017/03/23 16:59:36 by jhalford ### ########.fr */
/* */
/* ************************************************************************** */
#include "ft_nm_otool.h"
int symprint_text(t_symbol *symbol)
{
ft_printf("%16x %c %s\n", " ", symbol->value, symbol->name);
return (0);
}
int symprint(t_symbol *symbol)
{
t_symbolmap map;
map = g_symbolmap[symbol->type];
if (map.format)
map.format(symbol);
else
ft_printf("%16s %c %s\n", " ", map.c, symbol->name);
return (0);
}