| // Copyright 2018 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // +build darwin,go1.12,amd64 darwin,go1.12,386 |
| |
| package unix |
| |
| import ( |
| "os" |
| "os/exec" |
| "strings" |
| "testing" |
| ) |
| |
| type darwinTest struct { |
| name string |
| f func() |
| } |
| |
| // TODO(khr): decide whether to keep this test enabled permanently or |
| // only temporarily. |
| func TestDarwinLoader(t *testing.T) { |
| // Make sure the Darwin dynamic loader can actually resolve |
| // all the system calls into libSystem.dylib. Unfortunately |
| // there is no easy way to test this at compile time. So we |
| // implement a crazy hack here, calling into the syscall |
| // function with all its arguments set to junk, and see what |
| // error we get. We are happy with any error (or none) except |
| // an error from the dynamic loader. |
| // |
| // We have to run each test in a separate subprocess for fault isolation. |
| // |
| // Hopefully the junk args won't accidentally ask the system to do "rm -fr /". |
| // |
| // In an ideal world each syscall would have its own test, so this test |
| // would be unnecessary. Unfortunately, we do not live in that world. |
| for _, test := range darwinTests { |
| // Call the test binary recursively, giving it a magic argument |
| // (see init below) and the name of the test to run. |
| cmd := exec.Command(os.Args[0], "testDarwinLoader", test.name) |
| |
| // Run subprocess, collect results. Note that we expect the subprocess |
| // to fail somehow, so the error is irrelevant. |
| out, _ := cmd.CombinedOutput() |
| |
| if strings.Contains(string(out), "dyld: Symbol not found:") { |
| t.Errorf("can't resolve %s in libSystem.dylib", test.name) |
| } |
| if !strings.Contains(string(out), "success") { |
| // Not really an error. Might be a syscall that never returns, |
| // like exit, or one that segfaults, like gettimeofday. |
| t.Logf("test never finished: %s: %s", test.name, string(out)) |
| } |
| } |
| } |
| |
| func init() { |
| // The test binary execs itself with the "testDarwinLoader" argument. |
| // Run the test specified by os.Args[2], then panic. |
| if len(os.Args) >= 3 && os.Args[1] == "testDarwinLoader" { |
| for _, test := range darwinTests { |
| if test.name == os.Args[2] { |
| test.f() |
| } |
| } |
| // Panic with a "success" label, so the parent process can check it. |
| panic("success") |
| } |
| } |
| |
| // All the _trampoline functions in zsyscall_darwin_$ARCH.s |
| var darwinTests = [...]darwinTest{ |
| {"getgroups", libc_getgroups_trampoline}, |
| {"setgroups", libc_setgroups_trampoline}, |
| {"wait4", libc_wait4_trampoline}, |
| {"accept", libc_accept_trampoline}, |
| {"bind", libc_bind_trampoline}, |
| {"connect", libc_connect_trampoline}, |
| {"socket", libc_socket_trampoline}, |
| {"getsockopt", libc_getsockopt_trampoline}, |
| {"setsockopt", libc_setsockopt_trampoline}, |
| {"getpeername", libc_getpeername_trampoline}, |
| {"getsockname", libc_getsockname_trampoline}, |
| {"shutdown", libc_shutdown_trampoline}, |
| {"socketpair", libc_socketpair_trampoline}, |
| {"recvfrom", libc_recvfrom_trampoline}, |
| {"sendto", libc_sendto_trampoline}, |
| {"recvmsg", libc_recvmsg_trampoline}, |
| {"sendmsg", libc_sendmsg_trampoline}, |
| {"kevent", libc_kevent_trampoline}, |
| {"__sysctl", libc___sysctl_trampoline}, |
| {"utimes", libc_utimes_trampoline}, |
| {"futimes", libc_futimes_trampoline}, |
| {"fcntl", libc_fcntl_trampoline}, |
| {"poll", libc_poll_trampoline}, |
| {"madvise", libc_madvise_trampoline}, |
| {"mlock", libc_mlock_trampoline}, |
| {"mlockall", libc_mlockall_trampoline}, |
| {"mprotect", libc_mprotect_trampoline}, |
| {"msync", libc_msync_trampoline}, |
| {"munlock", libc_munlock_trampoline}, |
| {"munlockall", libc_munlockall_trampoline}, |
| {"ptrace", libc_ptrace_trampoline}, |
| {"pipe", libc_pipe_trampoline}, |
| {"getxattr", libc_getxattr_trampoline}, |
| {"fgetxattr", libc_fgetxattr_trampoline}, |
| {"setxattr", libc_setxattr_trampoline}, |
| {"fsetxattr", libc_fsetxattr_trampoline}, |
| {"removexattr", libc_removexattr_trampoline}, |
| {"fremovexattr", libc_fremovexattr_trampoline}, |
| {"listxattr", libc_listxattr_trampoline}, |
| {"flistxattr", libc_flistxattr_trampoline}, |
| {"kill", libc_kill_trampoline}, |
| {"ioctl", libc_ioctl_trampoline}, |
| {"access", libc_access_trampoline}, |
| {"adjtime", libc_adjtime_trampoline}, |
| {"chdir", libc_chdir_trampoline}, |
| {"chflags", libc_chflags_trampoline}, |
| {"chmod", libc_chmod_trampoline}, |
| {"chown", libc_chown_trampoline}, |
| {"chroot", libc_chroot_trampoline}, |
| {"close", libc_close_trampoline}, |
| {"dup", libc_dup_trampoline}, |
| {"dup2", libc_dup2_trampoline}, |
| {"exchangedata", libc_exchangedata_trampoline}, |
| {"exit", libc_exit_trampoline}, |
| {"faccessat", libc_faccessat_trampoline}, |
| {"fchdir", libc_fchdir_trampoline}, |
| {"fchflags", libc_fchflags_trampoline}, |
| {"fchmod", libc_fchmod_trampoline}, |
| {"fchmodat", libc_fchmodat_trampoline}, |
| {"fchown", libc_fchown_trampoline}, |
| {"fchownat", libc_fchownat_trampoline}, |
| {"flock", libc_flock_trampoline}, |
| {"fpathconf", libc_fpathconf_trampoline}, |
| {"fstat64", libc_fstat64_trampoline}, |
| {"fstatat64", libc_fstatat64_trampoline}, |
| {"fstatfs64", libc_fstatfs64_trampoline}, |
| {"fsync", libc_fsync_trampoline}, |
| {"ftruncate", libc_ftruncate_trampoline}, |
| {"__getdirentries64", libc___getdirentries64_trampoline}, |
| {"getdtablesize", libc_getdtablesize_trampoline}, |
| {"getegid", libc_getegid_trampoline}, |
| {"geteuid", libc_geteuid_trampoline}, |
| {"getgid", libc_getgid_trampoline}, |
| {"getpgid", libc_getpgid_trampoline}, |
| {"getpgrp", libc_getpgrp_trampoline}, |
| {"getpid", libc_getpid_trampoline}, |
| {"getppid", libc_getppid_trampoline}, |
| {"getpriority", libc_getpriority_trampoline}, |
| {"getrlimit", libc_getrlimit_trampoline}, |
| {"getrusage", libc_getrusage_trampoline}, |
| {"getsid", libc_getsid_trampoline}, |
| {"getuid", libc_getuid_trampoline}, |
| {"issetugid", libc_issetugid_trampoline}, |
| {"kqueue", libc_kqueue_trampoline}, |
| {"lchown", libc_lchown_trampoline}, |
| {"link", libc_link_trampoline}, |
| {"linkat", libc_linkat_trampoline}, |
| {"listen", libc_listen_trampoline}, |
| {"lstat64", libc_lstat64_trampoline}, |
| {"mkdir", libc_mkdir_trampoline}, |
| {"mkdirat", libc_mkdirat_trampoline}, |
| {"mkfifo", libc_mkfifo_trampoline}, |
| {"mknod", libc_mknod_trampoline}, |
| {"open", libc_open_trampoline}, |
| {"openat", libc_openat_trampoline}, |
| {"pathconf", libc_pathconf_trampoline}, |
| {"pread", libc_pread_trampoline}, |
| {"pwrite", libc_pwrite_trampoline}, |
| {"read", libc_read_trampoline}, |
| {"readlink", libc_readlink_trampoline}, |
| {"readlinkat", libc_readlinkat_trampoline}, |
| {"rename", libc_rename_trampoline}, |
| {"renameat", libc_renameat_trampoline}, |
| {"revoke", libc_revoke_trampoline}, |
| {"rmdir", libc_rmdir_trampoline}, |
| {"lseek", libc_lseek_trampoline}, |
| {"select", libc_select_trampoline}, |
| {"setegid", libc_setegid_trampoline}, |
| {"seteuid", libc_seteuid_trampoline}, |
| {"setgid", libc_setgid_trampoline}, |
| {"setlogin", libc_setlogin_trampoline}, |
| {"setpgid", libc_setpgid_trampoline}, |
| {"setpriority", libc_setpriority_trampoline}, |
| {"setprivexec", libc_setprivexec_trampoline}, |
| {"setregid", libc_setregid_trampoline}, |
| {"setreuid", libc_setreuid_trampoline}, |
| {"setrlimit", libc_setrlimit_trampoline}, |
| {"setsid", libc_setsid_trampoline}, |
| {"settimeofday", libc_settimeofday_trampoline}, |
| {"setuid", libc_setuid_trampoline}, |
| {"stat64", libc_stat64_trampoline}, |
| {"statfs64", libc_statfs64_trampoline}, |
| {"symlink", libc_symlink_trampoline}, |
| {"symlinkat", libc_symlinkat_trampoline}, |
| {"sync", libc_sync_trampoline}, |
| {"truncate", libc_truncate_trampoline}, |
| {"umask", libc_umask_trampoline}, |
| {"undelete", libc_undelete_trampoline}, |
| {"unlink", libc_unlink_trampoline}, |
| {"unlinkat", libc_unlinkat_trampoline}, |
| {"unmount", libc_unmount_trampoline}, |
| {"write", libc_write_trampoline}, |
| {"mmap", libc_mmap_trampoline}, |
| {"munmap", libc_munmap_trampoline}, |
| {"gettimeofday", libc_gettimeofday_trampoline}, |
| {"getfsstat64", libc_getfsstat64_trampoline}, |
| } |