#include <stdio.h> // fprintf(), NULL
#include <stdlib.h> // exit(), EXIT_SUCCESS
#include <dlfcn.h>
#include <mach-o/dyld.h>
#include <mach-o/dyld_images.h>
#include <mach/mach.h>
#include "test.h" // PASS(), FAIL(), XPASS(), XFAIL()
static uintptr_t libSystemSlide()
{
Dl_info info;
if ( dladdr(&malloc, &info) == 0 ) {
FAIL("all_image_infos-cache-slide: dladdr(&malloc, xx) failed");
exit(0);
}
const struct mach_header* mallocMh = (struct mach_header*)info.dli_fbase;
if ( (mallocMh->flags & 0x80000000) == 0 ) {
FAIL("all_image_infos-cache-slide: image containing _malloc not in shared cache");
exit(0);
}
int count = _dyld_image_count();
for(int i=0; i < count; ++i) {
if ( mallocMh == _dyld_get_image_header(i) ) {
return _dyld_get_image_vmaddr_slide(i);
}
}
FAIL("all_image_infos-cache-slide: slide of image containing _malloc not found");
exit(0);
}
int main(int argc, const char* argv[])
{
task_dyld_info_data_t task_dyld_info;
mach_msg_type_number_t count = TASK_DYLD_INFO_COUNT;
if ( task_info(mach_task_self(), TASK_DYLD_INFO, (task_info_t)&task_dyld_info, &count) ) {
FAIL("all_image_infos-cache-slide: task_info() failed");
return 0;
}
struct dyld_all_image_infos* infos = (struct dyld_all_image_infos*)(uintptr_t)task_dyld_info.all_image_info_addr;
if ( infos->version < 12 ) {
FAIL("all_image_infos-cache-slide: version < 12");
return 0;
}
if ( libSystemSlide() != infos->sharedCacheSlide ) {
FAIL("all_image_infos-cache-slide: dyld infos sharedCacheSlide (0x%08X) does not match computed slide (0x%08X)",
infos->sharedCacheSlide, libSystemSlide());
return 0;
}
PASS("all_image_infos-cache-slide");
return EXIT_SUCCESS;
}