Made bzero a function vector and added a 586/686 optimized version of
bzero. Deprecated blkclr (removed it). Removed some old cruft from cpufunc.h. The optimized bzero was submitted by Torbjorn Granlund <tege@matematik.su.se> The kernel adaption and other changes by me.
This commit is contained in:
David Greenman
parent
83e33b0197
commit
d079690c14
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@ -30,7 +30,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: cpufunc.h,v 1.42 1995/12/03 13:45:27 bde Exp $
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* $Id: cpufunc.h,v 1.43 1995/12/19 14:30:42 davidg Exp $
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*/
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/*
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@ -329,66 +329,6 @@ void bcopyb __P((const void *from, void *to, size_t len));
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void bcopyw __P((const void *from, void *to, size_t len));
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void bcopyx __P((const void *from, void *to, size_t len,
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int stride));
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#if 0
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/*
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* These functions in support.s are declared elsewhere.
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*/
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void bcopy __P((const void *from, void *to, size_t len));
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void blkclr __P((void *buf, size_t len));
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void bzero __P((void *buf, size_t len));
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int copyin __P((void *udaddr, void *kaddr, size_t len));
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int copyinstr __P((void *udaddr, void *kaddr, size_t len,
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size_t *lencopied));
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int copyout __P((void *kaddr, void *udaddr, size_t len));
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int copystr __P((void *kfaddr, void *kdaddr, size_t len,
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size_t *lencopied));
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int fubyte __P((void *base));
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int fuswintr __P((void *base));
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int fuibyte __P((void *base));
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int fuword __P((void *base));
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struct region_descriptor;
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void lgdt __P((struct region_descriptor *rdp));
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void lidt __P((struct region_descriptor *rdp));
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void lldt __P((u_short sel));
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/*
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* longjmp() and setjmp() are only used by ddb. They probably shouldn't
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* shouldn't be supported in the kernel.
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*/
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#include <setjmp.h>
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void longjmp __P((jmp_buf jb, int rv));
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void ovbcopy __P((const void *from, void *to, size_t len);
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int setjmp __P((jmp_buf jb));
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struct soft_segment_descriptor;
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union descriptor;
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int ssdtosd __P((struct soft_segment_descriptor *ssdp,
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union descriptor *sdp));
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int subyte __P((void *base, int byte));
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int suibyte __P((void *base, int byte));
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int suswintr __P((void *base, int word));
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int suword __P((void *base, int word));
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/*
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* These functions in support.s are declared elsewhere, but never used.
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* A silly amount of effort went into copyoutstr(). It's not worth
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* maintaining, since the string length is usually known so copyout
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* works better, or is easy to find so copyout() can be used.
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*/
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int copyoutstr __P((void *kaddr, void *udaddr, size_t len,
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size_t *lencopied));
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int fuiword __P((void *base));
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int suiword __P((void *base, int word));
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/*
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* These functions in support.s are also in libkern.a and are declared in
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* libkern.h.
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* ffs() is built in to gcc-2 and was buggy in gcc-2.4.5 so we may may the
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* buggy version if we don't replace it by an inline.
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*/
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int bcmp __P((const void *b1, const void *b2, size_t length));
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int ffs __P((int mask));
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#endif /* 0 */
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/*
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* These variables and functions in support.s are used.
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*/
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@ -30,7 +30,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: cpufunc.h,v 1.42 1995/12/03 13:45:27 bde Exp $
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* $Id: cpufunc.h,v 1.43 1995/12/19 14:30:42 davidg Exp $
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*/
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/*
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@ -329,66 +329,6 @@ void bcopyb __P((const void *from, void *to, size_t len));
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void bcopyw __P((const void *from, void *to, size_t len));
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void bcopyx __P((const void *from, void *to, size_t len,
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int stride));
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#if 0
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/*
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* These functions in support.s are declared elsewhere.
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*/
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void bcopy __P((const void *from, void *to, size_t len));
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void blkclr __P((void *buf, size_t len));
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void bzero __P((void *buf, size_t len));
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int copyin __P((void *udaddr, void *kaddr, size_t len));
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int copyinstr __P((void *udaddr, void *kaddr, size_t len,
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size_t *lencopied));
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int copyout __P((void *kaddr, void *udaddr, size_t len));
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int copystr __P((void *kfaddr, void *kdaddr, size_t len,
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size_t *lencopied));
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int fubyte __P((void *base));
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int fuswintr __P((void *base));
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int fuibyte __P((void *base));
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int fuword __P((void *base));
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struct region_descriptor;
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void lgdt __P((struct region_descriptor *rdp));
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void lidt __P((struct region_descriptor *rdp));
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void lldt __P((u_short sel));
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/*
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* longjmp() and setjmp() are only used by ddb. They probably shouldn't
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* shouldn't be supported in the kernel.
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*/
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#include <setjmp.h>
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void longjmp __P((jmp_buf jb, int rv));
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void ovbcopy __P((const void *from, void *to, size_t len);
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int setjmp __P((jmp_buf jb));
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struct soft_segment_descriptor;
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union descriptor;
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int ssdtosd __P((struct soft_segment_descriptor *ssdp,
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union descriptor *sdp));
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int subyte __P((void *base, int byte));
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int suibyte __P((void *base, int byte));
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int suswintr __P((void *base, int word));
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int suword __P((void *base, int word));
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/*
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* These functions in support.s are declared elsewhere, but never used.
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* A silly amount of effort went into copyoutstr(). It's not worth
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* maintaining, since the string length is usually known so copyout
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* works better, or is easy to find so copyout() can be used.
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*/
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int copyoutstr __P((void *kaddr, void *udaddr, size_t len,
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size_t *lencopied));
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int fuiword __P((void *base));
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int suiword __P((void *base, int word));
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/*
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* These functions in support.s are also in libkern.a and are declared in
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* libkern.h.
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* ffs() is built in to gcc-2 and was buggy in gcc-2.4.5 so we may may the
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* buggy version if we don't replace it by an inline.
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*/
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int bcmp __P((const void *b1, const void *b2, size_t length));
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int ffs __P((int mask));
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#endif /* 0 */
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/*
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* These variables and functions in support.s are used.
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*/
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@ -36,7 +36,7 @@
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* SUCH DAMAGE.
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*
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* @(#)buf.h 8.7 (Berkeley) 1/21/94
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* $Id: buf.h,v 1.24 1995/11/20 12:35:16 phk Exp $
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* $Id: buf.h,v 1.25 1995/12/11 04:57:20 dyson Exp $
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*/
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#ifndef _SYS_BUF_H_
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@ -179,7 +179,7 @@ extern TAILQ_HEAD(bqueues, buf) bufqueues[BUFFER_QUEUES];
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* Zero out the buffer's data area.
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*/
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#define clrbuf(bp) { \
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blkclr((bp)->b_data, (u_int)(bp)->b_bcount); \
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bzero((bp)->b_data, (u_int)(bp)->b_bcount); \
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(bp)->b_resid = 0; \
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}
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@ -36,7 +36,7 @@
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* SUCH DAMAGE.
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*
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* @(#)buf.h 8.7 (Berkeley) 1/21/94
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* $Id: buf.h,v 1.24 1995/11/20 12:35:16 phk Exp $
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* $Id: buf.h,v 1.25 1995/12/11 04:57:20 dyson Exp $
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*/
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#ifndef _SYS_BUF_H_
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@ -179,7 +179,7 @@ extern TAILQ_HEAD(bqueues, buf) bufqueues[BUFFER_QUEUES];
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* Zero out the buffer's data area.
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*/
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#define clrbuf(bp) { \
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blkclr((bp)->b_data, (u_int)(bp)->b_bcount); \
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bzero((bp)->b_data, (u_int)(bp)->b_bcount); \
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(bp)->b_resid = 0; \
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}
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@ -36,7 +36,7 @@
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* SUCH DAMAGE.
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*
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* @(#)systm.h 8.4 (Berkeley) 2/23/94
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* $Id: systm.h,v 1.26 1995/10/08 00:06:22 swallace Exp $
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* $Id: systm.h,v 1.27 1995/11/09 09:23:05 bde Exp $
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*/
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#ifndef _SYS_SYSTM_H_
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@ -125,8 +125,7 @@ void kprintf __P((const char *fmt, int flags, struct tty *tp, va_list ap));
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void bcopy __P((const void *from, void *to, size_t len));
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void ovbcopy __P((const void *from, void *to, size_t len));
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void blkclr __P((void *buf, u_int len));
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void bzero __P((void *buf, size_t len));
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void (*bzero) __P((void *buf, size_t len));
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void *memcpy __P((void *to, const void *from, size_t len));
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