1 #include <darwintest.h> 2 #include <mach-o/dyld.h> 3 #include <spawn.h> 4 #include <spawn_private.h> 5 #include <unistd.h> 6 #include <sys/wait.h> 7 #include <fcntl.h> 8 #include <stdlib.h> 9 10 #include <TargetConditionals.h> 11 12 T_DECL(posix_spawn_alt_rosetta, "verify posix_spawn_set_alt_rosetta_np switches to alternative rosetta runtime", 13 T_META_ASROOT(true), T_META_REQUIRES_SYSCTL_EQ("kern.development", 1)) 14 { 15 #if TARGET_OS_OSX && defined(__arm64__) 16 int ret, pid; 17 posix_spawnattr_t spawnattr; 18 char path[1024]; 19 uint32_t size = sizeof(path); 20 cpu_type_t cpuprefs[] = { CPU_TYPE_X86_64 }; 21 cpu_type_t subcpuprefs[] = { CPU_SUBTYPE_ANY }; 22 int wait_ret = 0; 23 24 if (access("/Library/Apple/usr/libexec/oah/libRosettaRuntime", O_RDONLY) != 0) { 25 T_SKIP("Rosetta not installed"); 26 return; 27 } 28 29 if (access("/usr/local/libexec/rosetta/runtime_internal", O_RDONLY) != 0) { 30 system("mkdir -p /usr/local/libexec/oah"); 31 system("cp /Library/Apple/usr/libexec/rosetta/runtime /usr/local/libexec/rosetta/runtime_internal"); 32 } 33 34 T_QUIET; T_ASSERT_EQ(_NSGetExecutablePath(path, &size), 0, NULL); 35 T_QUIET; T_ASSERT_LT(strlcat(path, "_helper", size), (unsigned long)size, NULL); 36 37 ret = posix_spawnattr_init(&spawnattr); 38 T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "posix_spawnattr_init"); 39 40 // 1) Run natively 41 42 ret = posix_spawn(&pid, path, NULL, &spawnattr, NULL, NULL); 43 T_ASSERT_EQ(ret, 0, "posix_spawn should succeed"); 44 ret = waitpid(pid, &wait_ret, 0); 45 T_QUIET; T_ASSERT_EQ(ret, pid, "child pid"); 46 T_QUIET; T_ASSERT_EQ(WIFEXITED(wait_ret), 1, "child process should have called exit()"); 47 T_ASSERT_EQ(WEXITSTATUS(wait_ret), 0, "running natively should return 0"); 48 49 // 2) Set archpref to run under Rosetta 50 51 ret = posix_spawnattr_setarchpref_np(&spawnattr, sizeof(cpuprefs) / sizeof(cpuprefs[0]), cpuprefs, subcpuprefs, NULL); 52 T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "posix_spawnattr_setarchpref_np"); 53 54 ret = posix_spawn(&pid, path, NULL, &spawnattr, NULL, NULL); 55 T_ASSERT_EQ(ret, 0, "posix_spawn should succeed"); 56 ret = waitpid(pid, &wait_ret, 0); 57 T_QUIET; T_ASSERT_EQ(ret, pid, "child pid"); 58 T_QUIET; T_ASSERT_EQ(WIFEXITED(wait_ret), 1, "child process should have called exit()"); 59 T_ASSERT_EQ(WEXITSTATUS(wait_ret), 1, "running in rosetta should return 1"); 60 61 // 3) Request alternative Rosetta runtime 62 63 ret = posix_spawnattr_set_alt_rosetta_np(&spawnattr, 0); 64 T_QUIET; T_ASSERT_POSIX_SUCCESS(ret, "posix_spawnattr_setarchpref_np"); 65 66 ret = posix_spawn(&pid, path, NULL, &spawnattr, NULL, NULL); 67 T_ASSERT_EQ(ret, 0, "posix_spawn should succeed"); 68 ret = waitpid(pid, &wait_ret, 0); 69 T_QUIET; T_ASSERT_EQ(ret, pid, "child pid"); 70 T_QUIET; T_ASSERT_EQ(WIFEXITED(wait_ret), 1, "child process should have called exit()"); 71 T_ASSERT_EQ(WEXITSTATUS(wait_ret), 2, "running with alternative rosetta runtime should return 2"); 72 73 ret = posix_spawnattr_destroy(&spawnattr); 74 T_QUIET; T_ASSERT_EQ(ret, 0, "posix_spawnattr_destroy"); 75 #else 76 T_SKIP("Not arm64 macOS"); 77 #endif 78 } 79