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Make cerror thread aware by calling __error() to get a pointer to the

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thread-specific error variable. This change make libc use the same cerror
code that libc_r has been using.
This commit is contained in:
John Birrell 1998-04-30 09:32:48 +00:00
parent 68f87034f2
commit 3fece7a1aa
2 changed files with 10 additions and 44 deletions
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27
lib/libc/amd64/sys/cerror.S
View File

@ -33,21 +33,22 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: cerror.S,v 1.8 1997/02/22 14:59:29 peter Exp $
*/
#if defined(SYSLIBC_RCS) && !defined(lint)
.text
.asciz "$Id$"
.asciz "$Id: cerror.S,v 1.8 1997/02/22 14:59:29 peter Exp $"
#endif /* SYSLIBC_RCS and not lint */
#include "SYS.h"
.globl HIDENAME(cerror)
#ifdef _THREAD_SAFE
/*
* Threaded version using __error().
* The __error() function is thread aware. For non-threaded
* programs and the initial threaded in threaded programs,
* it returns a pointer to the global errno variable.
*/
.globl CNAME(__error)
.type CNAME(__error),@function
@ -67,21 +68,3 @@ HIDENAME(cerror):
movl $-1,%edx
ret
#else /* _THREAD_SAFE */
/*
* Non-threaded version using global errno.
*/
.globl CNAME(errno)
HIDENAME(cerror):
#ifdef PIC
/* The caller must execute the PIC prologue before jumping to cerror. */
movl PIC_GOT(CNAME(errno)),%ecx
movl %eax,(%ecx)
PIC_EPILOGUE
#else
movl %eax,CNAME(errno)
#endif
movl $-1,%eax
movl $-1,%edx
ret
#endif /* _THREAD_SAFE */

27
lib/libc/i386/sys/cerror.S
View File

@ -33,21 +33,22 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id$
* $Id: cerror.S,v 1.8 1997/02/22 14:59:29 peter Exp $
*/
#if defined(SYSLIBC_RCS) && !defined(lint)
.text
.asciz "$Id$"
.asciz "$Id: cerror.S,v 1.8 1997/02/22 14:59:29 peter Exp $"
#endif /* SYSLIBC_RCS and not lint */
#include "SYS.h"
.globl HIDENAME(cerror)
#ifdef _THREAD_SAFE
/*
* Threaded version using __error().
* The __error() function is thread aware. For non-threaded
* programs and the initial threaded in threaded programs,
* it returns a pointer to the global errno variable.
*/
.globl CNAME(__error)
.type CNAME(__error),@function
@ -67,21 +68,3 @@ HIDENAME(cerror):
movl $-1,%edx
ret
#else /* _THREAD_SAFE */
/*
* Non-threaded version using global errno.
*/
.globl CNAME(errno)
HIDENAME(cerror):
#ifdef PIC
/* The caller must execute the PIC prologue before jumping to cerror. */
movl PIC_GOT(CNAME(errno)),%ecx
movl %eax,(%ecx)
PIC_EPILOGUE
#else
movl %eax,CNAME(errno)
#endif
movl $-1,%eax
movl $-1,%edx
ret
#endif /* _THREAD_SAFE */