| | 1 | #include <stdio.h> |
| | 2 | #include <err.h> |
| | 3 | #include <crt_externs.h> |
| | 4 | #include <string.h> |
| | 5 | #include <mach/mach.h> |
| | 6 | #include <mach-o/ldsyms.h> |
| | 7 | #include <mach-o/dyld_images.h> |
| | 8 | #include <mach-o/arch.h> |
| | 9 | #include <stdlib.h> |
| | 10 | #include <sys/sysctl.h> |
| | 11 | |
| | 12 | __attribute__((constructor)) |
| | 13 | void init(int argc, const char *argv[], const char *envp[], const char *appl[], void *vars __attribute__((unused))) { |
| | 14 | int i; |
| | 15 | |
| | 16 | printf("argv = %p\n", argv); |
| | 17 | for (i=0; argv[i]; i++) { |
| | 18 | printf("argv[%2d] = %p %.100s%s\n", i, argv[i], argv[i], strlen(argv[i]) > 100 ? "..." : ""); |
| | 19 | } |
| | 20 | printf("envp = %p\n", envp); |
| | 21 | for (i=0; envp[i]; i++) { |
| | 22 | printf("envp[%2d] = %p %.100s%s\n", i, envp[i], envp[i], strlen(envp[i]) > 100 ? "..." : ""); |
| | 23 | } |
| | 24 | printf("appl = %p\n", appl); |
| | 25 | for (i=0; appl[i]; i++) { |
| | 26 | printf("appl[%2d] = %p %.100s%s\n", i, appl[i], appl[i], strlen(appl[i]) > 100 ? "..." : ""); |
| | 27 | } |
| | 28 | } |
| | 29 | |
| | 30 | void printexecinfo(void) |
| | 31 | { |
| | 32 | int ret; |
| | 33 | uint64_t stackaddr; |
| | 34 | size_t len = sizeof(stackaddr); |
| | 35 | const NXArchInfo *arch = NXGetArchInfoFromCpuType(_mh_execute_header.cputype, _mh_execute_header.cpusubtype & ~CPU_SUBTYPE_MASK); |
| | 36 | |
| | 37 | printf("executable load address = 0x%016llx\n", (uint64_t)(uintptr_t)&_mh_execute_header); |
| | 38 | printf("executable cputype 0x%08x cpusubtype 0x%08x (%s:%s)\n", |
| | 39 | _mh_execute_header.cputype, |
| | 40 | _mh_execute_header.cpusubtype, |
| | 41 | arch ? arch->name : "unknown", |
| | 42 | arch ? arch->description : "unknown"); |
| | 43 | |
| | 44 | ret = sysctlbyname("kern.usrstack64", &stackaddr, &len, NULL, 0); |
| | 45 | if (ret == -1) |
| | 46 | err(1, "sysctlbyname"); |
| | 47 | |
| | 48 | printf(" stack address = 0x%016llx\n", stackaddr); |
| | 49 | } |
| | 50 | |
| | 51 | void printdyldinfo(void) |
| | 52 | { |
| | 53 | task_dyld_info_data_t info; |
| | 54 | mach_msg_type_number_t size = TASK_DYLD_INFO_COUNT; |
| | 55 | kern_return_t kret; |
| | 56 | struct dyld_all_image_infos *all_image_infos; |
| | 57 | |
| | 58 | kret = task_info(mach_task_self(), TASK_DYLD_INFO, |
| | 59 | (void *)&info, &size); |
| | 60 | if (kret != KERN_SUCCESS) |
| | 61 | errx(1, "task_info: %s", mach_error_string(kret)); |
| | 62 | |
| | 63 | all_image_infos = (struct dyld_all_image_infos *)(uintptr_t)info.all_image_info_addr; |
| | 64 | |
| | 65 | printf(" dyld load address = 0x%016llx\n", (uint64_t)(uintptr_t)all_image_infos->dyldImageLoadAddress); |
| | 66 | printf(" shared cache slide = 0x%016llx\n", (uint64_t)(uintptr_t)all_image_infos->sharedCacheSlide); |
| | 67 | |
| | 68 | } |
| | 69 | |
| | 70 | int main(int argc, char *argv[]) { |
| | 71 | |
| | 72 | printexecinfo(); |
| | 73 | printdyldinfo(); |
| | 74 | |
| | 75 | return 0; |
| | 76 | } |
projects / apple / xnu.git / blame_incremental