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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-08-11 14:33:04 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-08-11 14:33:04 +0000 |
commit | 4cc631db0f14afeb28c54aab262e5ddf252d3910 (patch) | |
tree | c6634cd15897f2bb2cc3665f0acf9667b6dd06b7 /c/src/exec/libcsupport/src/hosterr.c | |
parent | Added functions to access the errno of the native system when using the (diff) | |
download | rtems-4cc631db0f14afeb28c54aab262e5ddf252d3910.tar.bz2 |
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.
Diffstat (limited to 'c/src/exec/libcsupport/src/hosterr.c')
-rw-r--r-- | c/src/exec/libcsupport/src/hosterr.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/c/src/exec/libcsupport/src/hosterr.c b/c/src/exec/libcsupport/src/hosterr.c new file mode 100644 index 0000000000..d842cc072a --- /dev/null +++ b/c/src/exec/libcsupport/src/hosterr.c @@ -0,0 +1,42 @@ +/* + * 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; +} + |