libgo/go/syscall/errno.c

   1 /* errno.c -- functions for getting and setting errno
   2
   3    Copyright 2010 The Go Authors. All rights reserved.
   4    Use of this source code is governed by a BSD-style
   5    license that can be found in the LICENSE file.  */
   6 #include <errno.h>
   7 #include <stdint.h>
   8
   9 #include "runtime.h"
  10
  11 /* errno is typically a macro. These functions set
  12    and get errno specific to the libc being used.  */
  13
  14 uintptr_t GetErrno(void) __asm__ (GOSYM_PREFIX "syscall.GetErrno");
  15 void SetErrno(uintptr_t) __asm__ (GOSYM_PREFIX "syscall.SetErrno");
  16
  17 uintptr_t
  18 GetErrno(void)
  19 {
  20   return (uintptr_t) errno;
  21 }
  22
  23 void
  24 SetErrno(uintptr_t value)
  25 {
  26   errno = (int) value;
  27 }