1/* 2 * Part of the execve tests. This program should not be compiled fat. xnu_quick_test 3 * will call the various single-architecture builds of this program as helpers to test 4 * the exec() transitions it cannot test itself. 5 * 6 * When running on a 64-bit machine (x86_64 or PPC64), the 32-bit version of 7 * xnu_quick_test will fork and exec a 64-bit helper process that performs 8 * the following tests. 9 * 1. 64 bit process forking() 64-bit child, child execing() 64-bit file(4GB pagezero) 10 * 2. 64 bit process forking() 64-bit child, child execing() 64-bit file (4KB pagezero) 11 * 3. 64 bit process forking() 64-bit child, child execing() 32-bit file 12 * 13 * The 64-bit version of xnu_quick_test will fork and exec a 32-bit process 14 * that performs the following tests. 15 * 4. 32 bit process forking() 32-bit child, child execing() 32-bit file 16 * 5. 32 bit process forking() 32-bit child, child execing() 64 bit file (4GB pagezero) 17 * 6. 32 bit process forking() 32-bit child, child execing() 64 bit file (4KB pagezero) 18 */ 19 20#include <stdio.h> 21#include <unistd.h> 22#include <sys/types.h> 23#include <sys/syscall.h> 24 25extern int do_execve_test(char * path, char * argv[], void * envp, int killwait); 26extern int get_bits(void); 27 28 29int main(int argc, const char * argv[]) 30{ 31 int my_err, my_status; 32 pid_t my_pid, my_wait_pid; 33 char * errmsg = NULL; 34 char * argvs[2] = {"", NULL}; 35 int bits = get_bits(); /* Gets actual processor bit-ness. */ 36 37#if defined(__i386__) 38 /* 39 * This is the helper binary for the x86_64 version of xnu_quick_test. xnu_quick_test 40 * forks and execs this code to test exec()ing from a 32-bit binary. 41 */ 42 errmsg = "execve failed: from i386 forking and exec()ing i386 process.\n"; 43 argvs[0] = "sleep-i386"; 44 if (do_execve_test("helpers/sleep-i386", argvs, NULL, 0)) goto test_failed_exit; 45 46 errmsg = "execve failed: from i386 forking and exec()ing x86_64 process w/ 4G pagezero.\n"; 47 argvs[0] = "sleep-x86_64-4G"; 48 if (do_execve_test("helpers/sleep-x86_64-4G", argvs, NULL, 0)) goto test_failed_exit; 49 50 errmsg = "execve failed: from i386 forking and exec()ing x86_64 process w/ 4K pagezero.\n"; 51 argvs[0] = "sleep-x86_64-4K"; 52 if (do_execve_test("helpers/sleep-x86_64-4K", argvs, NULL, 0)) goto test_failed_exit; 53#endif 54 55 56#if defined(__x86_64__) 57 /* 58 * This is the helper binary for the i386 version of xnu_quick_test. xnu_quick_test 59 * forks and execs this code to test exec()ing from a 64-bit binary. 60 */ 61 errmsg = "execve failed: from x86_64 forking and exec()ing 64-bit x86_64 process w/ 4G pagezero.\n"; 62 argvs[0] = "sleep-x86_64-4G"; 63 if (do_execve_test("helpers/sleep-x86_64-4G", argvs, NULL, 1)) goto test_failed_exit; 64 65 errmsg = "execve failed: from x86_64 forking and exec()ing 64-bit x86_64 process w/ 4K Pagezero.\n"; 66 argvs[0] = "sleep-x86_64-4K"; 67 if (do_execve_test("helpers/sleep-x86_64-4K", argvs, NULL, 1)) goto test_failed_exit; 68 69 errmsg = "execve failed: from x64_64 forking and exec()ing 32-bit i386 process.\n"; 70 argvs[0] = "sleep-i386"; 71 if (do_execve_test("helpers/sleep-i386", argvs, NULL, 1)) goto test_failed_exit; 72#endif 73 74 75 /* 76 * We are ourselves launched with do_execve_test, which wants a chance to 77 * send a SIGKILL 78 */ 79 sleep(4); 80 return 0; 81 82test_failed_exit: 83 if (errmsg) 84 printf("%s", errmsg); 85 return -1; 86} 87 88