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Build the syscalls (in libc, not libc_r) with weak symbols so that

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libpthread can override them as required.
This commit is contained in:
John Birrell 1998-05-05 22:06:16 +00:00
parent e659da100d
commit 75831c5b8f
2 changed files with 18 additions and 6 deletions
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12
lib/libc/amd64/SYS.h
View File

@ -35,17 +35,23 @@
*
* from: @(#)SYS.h 5.5 (Berkeley) 5/7/91
*
* $Id: SYS.h,v 1.10 1997/02/22 14:58:30 peter Exp $
* $Id: SYS.h,v 1.11 1997/04/19 17:05:30 bde Exp $
*/
#include <sys/syscall.h>
#include "DEFS.h"
#define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \
ENTRY(x); lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b
ENTRY(__CONCAT(_,x)); \
.weak CNAME(x); \
.set CNAME(x),CNAME(__CONCAT(_,x)); \
lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b
#define RSYSCALL(x) SYSCALL(x); ret
#define PSEUDO(x,y) ENTRY(x); lea __CONCAT(SYS_,y), %eax; KERNCALL; ret
#define PSEUDO(x,y) ENTRY(__CONCAT(_,x)); \
.weak CNAME(x); \
.set CNAME(x),CNAME(__CONCAT(_,x)); \
lea __CONCAT(SYS_,y), %eax; KERNCALL; ret
/* gas messes up offset -- although we don't currently need it, do for BCS */
#define LCALL(x,y) .byte 0x9a ; .long y; .word x

12
lib/libc/i386/SYS.h
View File

@ -35,17 +35,23 @@
*
* from: @(#)SYS.h 5.5 (Berkeley) 5/7/91
*
* $Id: SYS.h,v 1.10 1997/02/22 14:58:30 peter Exp $
* $Id: SYS.h,v 1.11 1997/04/19 17:05:30 bde Exp $
*/
#include <sys/syscall.h>
#include "DEFS.h"
#define SYSCALL(x) 2: PIC_PROLOGUE; jmp PIC_PLT(HIDENAME(cerror)); \
ENTRY(x); lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b
ENTRY(__CONCAT(_,x)); \
.weak CNAME(x); \
.set CNAME(x),CNAME(__CONCAT(_,x)); \
lea __CONCAT(SYS_,x),%eax; KERNCALL; jb 2b
#define RSYSCALL(x) SYSCALL(x); ret
#define PSEUDO(x,y) ENTRY(x); lea __CONCAT(SYS_,y), %eax; KERNCALL; ret
#define PSEUDO(x,y) ENTRY(__CONCAT(_,x)); \
.weak CNAME(x); \
.set CNAME(x),CNAME(__CONCAT(_,x)); \
lea __CONCAT(SYS_,y), %eax; KERNCALL; ret
/* gas messes up offset -- although we don't currently need it, do for BCS */
#define LCALL(x,y) .byte 0x9a ; .long y; .word x