7a9389330e
gcc/: * gcc.c (default_compilers): Add entry for ".go". * common.opt: Add -static-libgo as a driver option. * doc/install.texi (Configuration): Mention libgo as an option for --enable-shared. Mention go as an option for --enable-languages. * doc/invoke.texi (Overall Options): Mention .go as a file name suffix. Mention go as a -x option. * doc/frontends.texi (G++ and GCC): Mention Go as a supported language. * doc/sourcebuild.texi (Top Level): Mention libgo. * doc/standards.texi (Standards): Add section on Go language. Move references for other languages into their own section. * doc/contrib.texi (Contributors): Mention that I contributed the Go frontend. gcc/testsuite/: * lib/go.exp: New file. * lib/go-dg.exp: New file. * lib/go-torture.exp: New file. * lib/target-supports.exp (check_compile): Match // Go. From-SVN: r167407
114 lines
3.8 KiB
Go
114 lines
3.8 KiB
Go
// Copyright 2009 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package os
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import syscall "syscall"
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// An Error can represent any printable error condition.
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type Error interface {
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String() string
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}
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// A helper type that can be embedded or wrapped to simplify satisfying
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// Error.
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type ErrorString string
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func (e ErrorString) String() string { return string(e) }
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func (e ErrorString) Temporary() bool { return false }
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func (e ErrorString) Timeout() bool { return false }
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// Note: If the name of the function NewError changes,
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// pkg/go/doc/doc.go should be adjusted since it hardwires
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// this name in a heuristic.
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// NewError converts s to an ErrorString, which satisfies the Error interface.
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func NewError(s string) Error { return ErrorString(s) }
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// Errno is the Unix error number. Names such as EINVAL are simple
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// wrappers to convert the error number into an Error.
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type Errno int64
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func (e Errno) String() string { return syscall.Errstr(int(e)) }
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func (e Errno) Temporary() bool {
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return e == Errno(syscall.EINTR) || e.Timeout()
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}
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func (e Errno) Timeout() bool {
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return e == Errno(syscall.EAGAIN) || e == Errno(syscall.EWOULDBLOCK)
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}
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// Commonly known Unix errors.
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var (
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EPERM Error = Errno(syscall.EPERM)
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ENOENT Error = Errno(syscall.ENOENT)
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ESRCH Error = Errno(syscall.ESRCH)
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EINTR Error = Errno(syscall.EINTR)
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EIO Error = Errno(syscall.EIO)
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ENXIO Error = Errno(syscall.ENXIO)
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E2BIG Error = Errno(syscall.E2BIG)
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ENOEXEC Error = Errno(syscall.ENOEXEC)
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EBADF Error = Errno(syscall.EBADF)
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ECHILD Error = Errno(syscall.ECHILD)
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EDEADLK Error = Errno(syscall.EDEADLK)
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ENOMEM Error = Errno(syscall.ENOMEM)
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EACCES Error = Errno(syscall.EACCES)
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EFAULT Error = Errno(syscall.EFAULT)
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EBUSY Error = Errno(syscall.EBUSY)
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EEXIST Error = Errno(syscall.EEXIST)
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EXDEV Error = Errno(syscall.EXDEV)
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ENODEV Error = Errno(syscall.ENODEV)
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ENOTDIR Error = Errno(syscall.ENOTDIR)
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EISDIR Error = Errno(syscall.EISDIR)
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EINVAL Error = Errno(syscall.EINVAL)
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ENFILE Error = Errno(syscall.ENFILE)
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EMFILE Error = Errno(syscall.EMFILE)
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ENOTTY Error = Errno(syscall.ENOTTY)
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EFBIG Error = Errno(syscall.EFBIG)
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ENOSPC Error = Errno(syscall.ENOSPC)
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ESPIPE Error = Errno(syscall.ESPIPE)
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EROFS Error = Errno(syscall.EROFS)
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EMLINK Error = Errno(syscall.EMLINK)
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EPIPE Error = Errno(syscall.EPIPE)
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EAGAIN Error = Errno(syscall.EAGAIN)
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EDOM Error = Errno(syscall.EDOM)
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ERANGE Error = Errno(syscall.ERANGE)
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EADDRINUSE Error = Errno(syscall.EADDRINUSE)
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ECONNREFUSED Error = Errno(syscall.ECONNREFUSED)
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ENAMETOOLONG Error = Errno(syscall.ENAMETOOLONG)
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EAFNOSUPPORT Error = Errno(syscall.EAFNOSUPPORT)
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)
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// PathError records an error and the operation and file path that caused it.
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type PathError struct {
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Op string
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Path string
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Error Error
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}
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func (e *PathError) String() string { return e.Op + " " + e.Path + ": " + e.Error.String() }
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// SyscallError records an error from a specific system call.
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type SyscallError struct {
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Syscall string
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Errno Errno
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}
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func (e *SyscallError) String() string { return e.Syscall + ": " + e.Errno.String() }
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// Note: If the name of the function NewSyscallError changes,
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// pkg/go/doc/doc.go should be adjusted since it hardwires
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// this name in a heuristic.
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// NewSyscallError returns, as an Error, a new SyscallError
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// with the given system call name and error number.
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// As a convenience, if errno is 0, NewSyscallError returns nil.
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func NewSyscallError(syscall string, errno int) Error {
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if errno == 0 {
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return nil
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}
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return &SyscallError{syscall, Errno(errno)}
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}
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