.config/coc/extensions/coc-go-data/tools/pkg/mod/golang.org/x/sys@v0.0.0-20210124154548-22da62e12c0c/unix/darwin_test.go

   1 // Copyright 2018 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 // +build darwin,go1.12,amd64 darwin,go1.12,386
   6
   7 package unix
   8
   9 import (
  10         "os"
  11         "os/exec"
  12         "strings"
  13         "testing"
  14 )
  15
  16 type darwinTest struct {
  17         name string
  18         f    func()
  19 }
  20
  21 // TODO(khr): decide whether to keep this test enabled permanently or
  22 // only temporarily.
  23 func TestDarwinLoader(t *testing.T) {
  24         // Make sure the Darwin dynamic loader can actually resolve
  25         // all the system calls into libSystem.dylib. Unfortunately
  26         // there is no easy way to test this at compile time. So we
  27         // implement a crazy hack here, calling into the syscall
  28         // function with all its arguments set to junk, and see what
  29         // error we get. We are happy with any error (or none) except
  30         // an error from the dynamic loader.
  31         //
  32         // We have to run each test in a separate subprocess for fault isolation.
  33         //
  34         // Hopefully the junk args won't accidentally ask the system to do "rm -fr /".
  35         //
  36         // In an ideal world each syscall would have its own test, so this test
  37         // would be unnecessary. Unfortunately, we do not live in that world.
  38         for _, test := range darwinTests {
  39                 // Call the test binary recursively, giving it a magic argument
  40                 // (see init below) and the name of the test to run.
  41                 cmd := exec.Command(os.Args[0], "testDarwinLoader", test.name)
  42
  43                 // Run subprocess, collect results. Note that we expect the subprocess
  44                 // to fail somehow, so the error is irrelevant.
  45                 out, _ := cmd.CombinedOutput()
  46
  47                 if strings.Contains(string(out), "dyld: Symbol not found:") {
  48                         t.Errorf("can't resolve %s in libSystem.dylib", test.name)
  49                 }
  50                 if !strings.Contains(string(out), "success") {
  51                         // Not really an error. Might be a syscall that never returns,
  52                         // like exit, or one that segfaults, like gettimeofday.
  53                         t.Logf("test never finished: %s: %s", test.name, string(out))
  54                 }
  55         }
  56 }
  57
  58 func init() {
  59         // The test binary execs itself with the "testDarwinLoader" argument.
  60         // Run the test specified by os.Args[2], then panic.
  61         if len(os.Args) >= 3 && os.Args[1] == "testDarwinLoader" {
  62                 for _, test := range darwinTests {
  63                         if test.name == os.Args[2] {
  64                                 test.f()
  65                         }
  66                 }
  67                 // Panic with a "success" label, so the parent process can check it.
  68                 panic("success")
  69         }
  70 }
  71
  72 // All the _trampoline functions in zsyscall_darwin_$ARCH.s
  73 var darwinTests = [...]darwinTest{
  74         {"getgroups", libc_getgroups_trampoline},
  75         {"setgroups", libc_setgroups_trampoline},
  76         {"wait4", libc_wait4_trampoline},
  77         {"accept", libc_accept_trampoline},
  78         {"bind", libc_bind_trampoline},
  79         {"connect", libc_connect_trampoline},
  80         {"socket", libc_socket_trampoline},
  81         {"getsockopt", libc_getsockopt_trampoline},
  82         {"setsockopt", libc_setsockopt_trampoline},
  83         {"getpeername", libc_getpeername_trampoline},
  84         {"getsockname", libc_getsockname_trampoline},
  85         {"shutdown", libc_shutdown_trampoline},
  86         {"socketpair", libc_socketpair_trampoline},
  87         {"recvfrom", libc_recvfrom_trampoline},
  88         {"sendto", libc_sendto_trampoline},
  89         {"recvmsg", libc_recvmsg_trampoline},
  90         {"sendmsg", libc_sendmsg_trampoline},
  91         {"kevent", libc_kevent_trampoline},
  92         {"sysctl", libc_sysctl_trampoline},
  93         {"utimes", libc_utimes_trampoline},
  94         {"futimes", libc_futimes_trampoline},
  95         {"fcntl", libc_fcntl_trampoline},
  96         {"poll", libc_poll_trampoline},
  97         {"madvise", libc_madvise_trampoline},
  98         {"mlock", libc_mlock_trampoline},
  99         {"mlockall", libc_mlockall_trampoline},
 100         {"mprotect", libc_mprotect_trampoline},
 101         {"msync", libc_msync_trampoline},
 102         {"munlock", libc_munlock_trampoline},
 103         {"munlockall", libc_munlockall_trampoline},
 104         {"ptrace", libc_ptrace_trampoline},
 105         {"pipe", libc_pipe_trampoline},
 106         {"getxattr", libc_getxattr_trampoline},
 107         {"fgetxattr", libc_fgetxattr_trampoline},
 108         {"setxattr", libc_setxattr_trampoline},
 109         {"fsetxattr", libc_fsetxattr_trampoline},
 110         {"removexattr", libc_removexattr_trampoline},
 111         {"fremovexattr", libc_fremovexattr_trampoline},
 112         {"listxattr", libc_listxattr_trampoline},
 113         {"flistxattr", libc_flistxattr_trampoline},
 114         {"kill", libc_kill_trampoline},
 115         {"ioctl", libc_ioctl_trampoline},
 116         {"access", libc_access_trampoline},
 117         {"adjtime", libc_adjtime_trampoline},
 118         {"chdir", libc_chdir_trampoline},
 119         {"chflags", libc_chflags_trampoline},
 120         {"chmod", libc_chmod_trampoline},
 121         {"chown", libc_chown_trampoline},
 122         {"chroot", libc_chroot_trampoline},
 123         {"close", libc_close_trampoline},
 124         {"dup", libc_dup_trampoline},
 125         {"dup2", libc_dup2_trampoline},
 126         {"exchangedata", libc_exchangedata_trampoline},
 127         {"exit", libc_exit_trampoline},
 128         {"faccessat", libc_faccessat_trampoline},
 129         {"fchdir", libc_fchdir_trampoline},
 130         {"fchflags", libc_fchflags_trampoline},
 131         {"fchmod", libc_fchmod_trampoline},
 132         {"fchmodat", libc_fchmodat_trampoline},
 133         {"fchown", libc_fchown_trampoline},
 134         {"fchownat", libc_fchownat_trampoline},
 135         {"flock", libc_flock_trampoline},
 136         {"fpathconf", libc_fpathconf_trampoline},
 137         {"fstat64", libc_fstat64_trampoline},
 138         {"fstatat64", libc_fstatat64_trampoline},
 139         {"fstatfs64", libc_fstatfs64_trampoline},
 140         {"fsync", libc_fsync_trampoline},
 141         {"ftruncate", libc_ftruncate_trampoline},
 142         {"getdtablesize", libc_getdtablesize_trampoline},
 143         {"getegid", libc_getegid_trampoline},
 144         {"geteuid", libc_geteuid_trampoline},
 145         {"getgid", libc_getgid_trampoline},
 146         {"getpgid", libc_getpgid_trampoline},
 147         {"getpgrp", libc_getpgrp_trampoline},
 148         {"getpid", libc_getpid_trampoline},
 149         {"getppid", libc_getppid_trampoline},
 150         {"getpriority", libc_getpriority_trampoline},
 151         {"getrlimit", libc_getrlimit_trampoline},
 152         {"getrusage", libc_getrusage_trampoline},
 153         {"getsid", libc_getsid_trampoline},
 154         {"getuid", libc_getuid_trampoline},
 155         {"issetugid", libc_issetugid_trampoline},
 156         {"kqueue", libc_kqueue_trampoline},
 157         {"lchown", libc_lchown_trampoline},
 158         {"link", libc_link_trampoline},
 159         {"linkat", libc_linkat_trampoline},
 160         {"listen", libc_listen_trampoline},
 161         {"lstat64", libc_lstat64_trampoline},
 162         {"mkdir", libc_mkdir_trampoline},
 163         {"mkdirat", libc_mkdirat_trampoline},
 164         {"mkfifo", libc_mkfifo_trampoline},
 165         {"mknod", libc_mknod_trampoline},
 166         {"open", libc_open_trampoline},
 167         {"openat", libc_openat_trampoline},
 168         {"pathconf", libc_pathconf_trampoline},
 169         {"pread", libc_pread_trampoline},
 170         {"pwrite", libc_pwrite_trampoline},
 171         {"read", libc_read_trampoline},
 172         {"readlink", libc_readlink_trampoline},
 173         {"readlinkat", libc_readlinkat_trampoline},
 174         {"rename", libc_rename_trampoline},
 175         {"renameat", libc_renameat_trampoline},
 176         {"revoke", libc_revoke_trampoline},
 177         {"rmdir", libc_rmdir_trampoline},
 178         {"lseek", libc_lseek_trampoline},
 179         {"select", libc_select_trampoline},
 180         {"setegid", libc_setegid_trampoline},
 181         {"seteuid", libc_seteuid_trampoline},
 182         {"setgid", libc_setgid_trampoline},
 183         {"setlogin", libc_setlogin_trampoline},
 184         {"setpgid", libc_setpgid_trampoline},
 185         {"setpriority", libc_setpriority_trampoline},
 186         {"setprivexec", libc_setprivexec_trampoline},
 187         {"setregid", libc_setregid_trampoline},
 188         {"setreuid", libc_setreuid_trampoline},
 189         {"setrlimit", libc_setrlimit_trampoline},
 190         {"setsid", libc_setsid_trampoline},
 191         {"settimeofday", libc_settimeofday_trampoline},
 192         {"setuid", libc_setuid_trampoline},
 193         {"stat64", libc_stat64_trampoline},
 194         {"statfs64", libc_statfs64_trampoline},
 195         {"symlink", libc_symlink_trampoline},
 196         {"symlinkat", libc_symlinkat_trampoline},
 197         {"sync", libc_sync_trampoline},
 198         {"truncate", libc_truncate_trampoline},
 199         {"umask", libc_umask_trampoline},
 200         {"undelete", libc_undelete_trampoline},
 201         {"unlink", libc_unlink_trampoline},
 202         {"unlinkat", libc_unlinkat_trampoline},
 203         {"unmount", libc_unmount_trampoline},
 204         {"write", libc_write_trampoline},
 205         {"mmap", libc_mmap_trampoline},
 206         {"munmap", libc_munmap_trampoline},
 207         {"gettimeofday", libc_gettimeofday_trampoline},
 208         {"getfsstat64", libc_getfsstat64_trampoline},
 209 }