127 lines
3.4 KiB
C
127 lines
3.4 KiB
C
/* ************************************************************************** */
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/* */
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/* ::: :::::::: */
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/* ft_nm.c :+: :+: :+: */
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/* +:+ +:+ +:+ */
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/* By: jhalford <jack@crans.org> +#+ +:+ +#+ */
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/* +#+#+#+#+#+ +#+ */
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/* Created: 2017/02/19 03:09:12 by jhalford #+# #+# */
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/* Updated: 2017/10/31 19:45:02 by jhalford ### ########.fr */
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/* */
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/* ************************************************************************** */
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#include "ft_nm_otool.h"
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#define NM_USAGE "usage: nm [-agmnpruU] filename ..."
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t_machodata *g_data = NULL;
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int g_rev = 0;
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t_cliopts g_nm_opts[] =
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{
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{'n', NULL, NM_NSORT, NM_ASORT, NULL, 0},
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{'p', NULL, NM_NOSORT, 0, NULL, 0},
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{'r', NULL, NM_RSORT, 0, NULL, 0},
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{'a', NULL, NM_ALL, 0, NULL, 0},
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{'g', NULL, NM_NO_LOCAL, 0, NULL, 0},
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{'u', NULL, NM_ONLY_UNDF, 0, NULL, 0},
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{'U', NULL, NM_NO_UNDF, 0, NULL, 0},
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{0xff, "full", NM_FULL, 0, NULL, 0},
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{'o', NULL, NM_OFORMAT, 0, NULL, 0},
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{'m', NULL, NM_MFORMAT, 0, NULL, 0},
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{0, 0, 0, 0, 0, 0},
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};
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void nm_single_file(void *file, t_nmdata *data);
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void nm_fat_file(struct fat_header *fat, t_nmdata *data)
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{
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uint32_t narch;
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struct fat_arch *obj;
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g_rev = IS_REV(fat);
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obj = fat_extract(fat, CPU_TYPE_X86_64, CPU_SUBTYPE_X86_64_ALL);
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if (obj)
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nm_single_file(obj, data);
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else
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{
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narch = endian(fat->nfat_arch, 32);
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obj = (struct fat_arch*)(fat + 1);
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while (narch--)
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{
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const NXArchInfo *arch = NXGetArchInfoFromCpuType(
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endian(obj->cputype, 32),
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endian(obj->cpusubtype, 32));
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ft_printf("\n%s (for architecture %s):\n", data->filename, arch->name);
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nm_single_file((void*)fat + endian(obj->offset, 32), data);
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g_rev = IS_REV(fat);
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++obj;
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}
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}
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}
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void nm_single_file(void *file, t_nmdata *data)
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{
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g_rev = IS_REV(file);
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if (IS_MACH_32(file))
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nm_mach(file, data);
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else if (IS_MACH_64(file))
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nm_mach_64(file, data);
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else
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{
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const NXArchInfo *arch = NXGetArchInfoFromCpuType(
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endian(*((int32_t*)file + 1), 32),
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endian(*((int32_t*)file + 2), 32));
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if (arch)
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ft_printf("{red}%s unsupported architecture{eoc}\n", arch->name);
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else
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ft_dprintf(2, "unknown architecture, magic=%#x\n", *((int32_t*)file));
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}
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}
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int nm(int ac, char **av, t_nmdata data)
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{
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int i;
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struct stat buf;
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int fd;
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void *file;
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i = data.av_data - av;
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while (i < ac && av[i])
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{
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g_rev = 0;
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data.filename = av[i];
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if ((fd = open((data.filename), O_RDONLY)) < 0)
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return (1);
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if ((fstat(fd, &buf)) < 0)
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return (1);
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if ((file = mmap(NULL, buf.st_size, PROT_READ, MAP_PRIVATE, fd, 0))
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== MAP_FAILED)
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return (1);
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if (!(data.flag & NM_OFORMAT) && ac - (data.av_data - av) > 1)
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ft_printf("\n%s:\n", data.filename);
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if (IS_FAT(file))
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nm_fat_file(file, &data);
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else
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nm_single_file(file, &data);
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if (munmap(file, buf.st_size))
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return (1);
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i++;
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}
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return (0);
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}
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int main(int ac, char **av)
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{
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t_nmdata data;
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data.flag = NM_ASORT;
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if (cliopts_get(av, g_nm_opts, &data))
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{
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ft_perror("ft_nm");
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ft_dprintf(2, NM_USAGE"\n");
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return (1);
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}
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return (nm(ac, av, data));
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}
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