This is xnu-11215.1.10. See this file in:
#include <stdio.h>
#include <err.h>
#include <crt_externs.h>
#include <string.h>
#include <mach/mach.h>
#include <mach-o/ldsyms.h>
#include <mach-o/dyld_images.h>
#include <mach-o/arch.h>
#include <stdlib.h>
#include <sys/sysctl.h>
__attribute__((constructor))
void
init(int argc, const char *argv[], const char *envp[], const char *appl[], void *vars __attribute__((unused)))
{
int i;
printf("argv = %p\n", argv);
for (i = 0; argv[i]; i++) {
printf("argv[%2d] = %p %.100s%s\n", i, argv[i], argv[i], strlen(argv[i]) > 100 ? "..." : "");
}
printf("envp = %p\n", envp);
for (i = 0; envp[i]; i++) {
printf("envp[%2d] = %p %.100s%s\n", i, envp[i], envp[i], strlen(envp[i]) > 100 ? "..." : "");
}
printf("appl = %p\n", appl);
for (i = 0; appl[i]; i++) {
printf("appl[%2d] = %p %.100s%s\n", i, appl[i], appl[i], strlen(appl[i]) > 100 ? "..." : "");
}
}
void
printexecinfo(void)
{
int ret;
uint64_t stackaddr;
size_t len = sizeof(stackaddr);
const NXArchInfo *arch = NXGetArchInfoFromCpuType(_mh_execute_header.cputype, _mh_execute_header.cpusubtype & ~CPU_SUBTYPE_MASK);
printf("executable load address = 0x%016llx\n", (uint64_t)(uintptr_t)&_mh_execute_header);
printf("executable cputype 0x%08x cpusubtype 0x%08x (%s:%s)\n",
_mh_execute_header.cputype,
_mh_execute_header.cpusubtype,
arch ? arch->name : "unknown",
arch ? arch->description : "unknown");
ret = sysctlbyname("kern.usrstack64", &stackaddr, &len, NULL, 0);
if (ret == -1) {
err(1, "sysctlbyname");
}
printf(" stack address = 0x%016llx\n", stackaddr);
}
void
printdyldinfo(void)
{
task_dyld_info_data_t info;
mach_msg_type_number_t size = TASK_DYLD_INFO_COUNT;
kern_return_t kret;
struct dyld_all_image_infos *all_image_infos;
kret = task_info(mach_task_self(), TASK_DYLD_INFO,
(void *)&info, &size);
if (kret != KERN_SUCCESS) {
errx(1, "task_info: %s", mach_error_string(kret));
}
all_image_infos = (struct dyld_all_image_infos *)(uintptr_t)info.all_image_info_addr;
printf(" dyld load address = 0x%016llx\n", (uint64_t)(uintptr_t)all_image_infos->dyldImageLoadAddress);
printf(" shared cache slide = 0x%016llx\n", (uint64_t)(uintptr_t)all_image_infos->sharedCacheSlide);
}
int
main(int argc, char *argv[])
{
printexecinfo();
printdyldinfo();
return 0;
}