Files
rtems/cpukit/libcsupport/src/hosterr.c
Joel Sherrill 4cc631db0f Added functions to access the errno of the native system when using the
newlib C library.

Fixed bug where length did not take into account amount added
for alignment requirements.
1995-08-11 14:33:04 +00:00

43 lines
951 B
C

/*
* Routines to access a host errno
*
* COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994.
* On-Line Applications Research Corporation (OAR).
* All rights assigned to U.S. Government, 1994.
*
* This material may be reproduced by or for the U.S. Government pursuant
* to the copyright license under the clause at DFARS 252.227-7013. This
* notice must appear in all copies of this file and its derivatives.
*
*/
#include <rtems.h>
#include <errno.h>
int host_errno(void);
/*
* copy host errno, if any to thread aware errno, if any
*/
void fix_syscall_errno(void)
{
errno = host_errno();
}
/*
* Get the host system errno, if any
* When using newlib (or possibly other libc's) on top of UNIX
* the errno returned by system calls may be unavailable due
* to trickery of making errno thread aware.
* This provides a kludge of getting at it.
*/
#undef errno
extern int errno;
int host_errno(void)
{
return errno;
}