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PIC generation when -DPIC flag is on.

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This commit is contained in:
pk 1993-09-28 21:04:38 +00:00
parent 308358ebde
commit d9a465e8af
8 changed files with 107 additions and 12 deletions
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24
lib/libc/i386/gen/fixunsdfsi.s
View File

@ -34,17 +34,26 @@
* SUCH DAMAGE.
*/
#include "SYS.h"
#if defined(LIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)fixunsdfsi.s 5.1 12/17/90"*/
.asciz "$Id: fixunsdfsi.s,v 1.3 1993/08/26 02:13:27 mycroft Exp $"
.asciz "$Id: fixunsdfsi.s,v 1.4 1993/09/28 21:04:38 pk Exp $"
#endif /* LIBC_SCCS and not lint */
.globl ___fixunsdfsi
___fixunsdfsi:
fldl 4(%esp) /* argument double to accum stack */
frndint /* create integer */
fcoml fbiggestsigned /* bigger than biggest signed? */
#ifdef PIC
PIC_PROLOGUE
leal PIC_GOTOFF(fbiggestsigned),%eax
PIC_EPILOGUE
fcoml (%eax)
#else
fcoml PIC_GOTOFF(fbiggestsigned) /* bigger than biggest signed? */
#endif
fstsw %ax
sahf
jnb 1f
@ -53,10 +62,19 @@ ___fixunsdfsi:
movl 4(%esp),%eax
ret
1: fsubl fbiggestsigned /* reduce for proper conversion */
1:
#ifdef PIC
PIC_PROLOGUE
leal PIC_GOTOFF(fbiggestsigned),%eax
PIC_EPILOGUE
fsubl (%eax)
#else
fsubl PIC_GOTOFF(fbiggestsigned) /* reduce for proper conversion */
#endif
fistpl 4(%esp) /* convert */
movl 4(%esp),%eax
orl $0x80000000,%eax /* restore bias */
PIC_EPILOGUE
ret
fbiggestsigned: .double 0r2147483648.0

7
lib/libc/i386/gen/setjmp.s
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@ -37,7 +37,7 @@
#if defined(LIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)setjmp.s 5.1 (Berkeley) 4/23/90"*/
.asciz "$Id: setjmp.s,v 1.3 1993/08/26 02:13:28 mycroft Exp $"
.asciz "$Id: setjmp.s,v 1.4 1993/09/28 21:04:39 pk Exp $"
#endif /* LIBC_SCCS and not lint */
/*
@ -51,10 +51,11 @@
*/
#include "DEFS.h"
#include "SYS.h"
ENTRY(setjmp)
pushl $0
call _sigblock
call PIC_PLT(_sigblock)
popl %edx
movl 4(%esp),%ecx
movl 0(%esp),%edx
@ -71,7 +72,7 @@ ENTRY(setjmp)
ENTRY(longjmp)
movl 4(%esp),%edx
pushl 24(%edx)
call _sigsetmask
call PIC_PLT(_sigsetmask)
popl %eax
movl 4(%esp),%edx
movl 8(%esp),%eax

9
lib/libc/i386/sys/Ovfork.s
View File

@ -37,7 +37,7 @@
#if defined(SYSLIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)Ovfork.s 5.1 (Berkeley) 4/23/90"*/
.asciz "$Id: Ovfork.s,v 1.4 1993/08/26 02:14:11 mycroft Exp $"
.asciz "$Id: Ovfork.s,v 1.5 1993/09/28 21:04:52 pk Exp $"
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
@ -61,7 +61,14 @@ vforkok:
jmp parent
.globl _errno
verror:
#ifdef PIC
PIC_PROLOGUE
movl PIC_GOT(_errno), %edx
movl %eax,(%edx)
PIC_EPILOGUE
#else
movl %eax,_errno
#endif
movl $-1,%eax
jmp %ecx
child:

26
lib/libc/i386/sys/brk.s
View File

@ -37,7 +37,7 @@
#if defined(SYSLIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)brk.s 5.2 (Berkeley) 12/17/90"*/
.asciz "$Id: brk.s,v 1.3 1993/08/26 02:14:12 mycroft Exp $"
.asciz "$Id: brk.s,v 1.4 1993/09/28 21:04:53 pk Exp $"
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
@ -50,6 +50,29 @@ ENTRY(_brk)
jmp ok
ENTRY(brk)
#ifdef PIC
movl 4(%esp),%eax
PIC_PROLOGUE
movl %edx,PIC_GOT(curbrk) # set up GOT addressing
movl %ecx,PIC_GOT(minbrk) #
cmpl %eax,(%ecx)
PIC_EPILOGUE
jl ok
movl (%ecx),%eax
movl %eax,4(%esp)
ok:
lea SYS_brk,%eax
LCALL(7,0)
jb err
movl 4(%esp),%eax
movl %eax,(%edx)
movl $0,%eax
ret
err:
jmp PIC_PLT(cerror)
#else
movl 4(%esp),%eax
cmpl %eax,minbrk
jl ok
@ -65,3 +88,4 @@ ok:
ret
err:
jmp cerror
#endif

9
lib/libc/i386/sys/cerror.s
View File

@ -37,13 +37,20 @@
#if defined(SYSLIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)cerror.s 5.1 (Berkeley) 4/23/90"*/
.asciz "$Id: cerror.s,v 1.3 1993/08/26 02:14:12 mycroft Exp $"
.asciz "$Id: cerror.s,v 1.4 1993/09/28 21:04:54 pk Exp $"
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
.globl _errno
cerror:
#ifdef PIC
PIC_PROLOGUE
movl PIC_GOT(_errno),%ecx
movl %eax,(%ecx)
PIC_EPILOGUE
#else
movl %eax,_errno
#endif
movl $-1,%eax
ret

9
lib/libc/i386/sys/ptrace.s
View File

@ -37,14 +37,21 @@
#if defined(SYSLIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)ptrace.s 5.1 (Berkeley) 4/23/90"*/
.asciz "$Id: ptrace.s,v 1.3 1993/08/26 02:14:16 mycroft Exp $"
.asciz "$Id: ptrace.s,v 1.4 1993/09/28 21:04:55 pk Exp $"
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
ENTRY(ptrace)
xorl %eax,%eax
#ifdef PIC
PIC_PROLOGUE
movl PIC_GOT(_errno),%edx
movl %eax,(%edx)
PIC_EPILOGUE
#else
movl %eax,_errno
#endif
lea SYS_ptrace,%eax
LCALL(7,0)
jb err

24
lib/libc/i386/sys/sbrk.s
View File

@ -37,7 +37,7 @@
#if defined(SYSLIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)sbrk.s 5.1 (Berkeley) 4/23/90"*/
.asciz "$Id: sbrk.s,v 1.3 1993/08/26 02:14:18 mycroft Exp $"
.asciz "$Id: sbrk.s,v 1.4 1993/09/28 21:04:56 pk Exp $"
#endif /* SYSLIBC_SCCS and not lint */
#include "SYS.h"
@ -54,6 +54,27 @@ curbrk: .long _end
.text
ENTRY(sbrk)
#ifdef PIC
movl 4(%esp),%ecx
PIC_PROLOGUE
movl PIC_GOT(curbrk),%edx
movl (%edx),%eax
PIC_EPILOGUE
addl %eax,4(%esp)
lea SYS_brk,%eax
LCALL(7,0)
jb err
PIC_PROLOGUE
movl PIC_GOT(curbrk),%edx
movl (%edx),%eax
addl %ecx,(%edx)
PIC_EPILOGUE
ret
err:
jmp PIC_PLT(cerror)
#else
movl 4(%esp),%ecx
movl curbrk,%eax
addl %eax,4(%esp)
@ -65,3 +86,4 @@ ENTRY(sbrk)
ret
err:
jmp cerror
#endif

11
lib/libc/i386/sys/setlogin.s
View File

@ -37,7 +37,7 @@
#if defined(LIBC_SCCS) && !defined(lint)
.text
/*.asciz "from: @(#)setlogin.s 5.2 (Berkeley) 4/12/91"*/
.asciz "$Id: setlogin.s,v 1.3 1993/08/26 02:14:19 mycroft Exp $"
.asciz "$Id: setlogin.s,v 1.4 1993/09/28 21:04:57 pk Exp $"
#endif /* LIBC_SCCS and not lint */
#include "SYS.h"
@ -45,5 +45,14 @@
.globl __logname_valid /* in getlogin() */
SYSCALL(setlogin)
#ifdef PIC
PIC_PROLOGUE
pushl %eax
movl PIC_GOT(__logname_valid),%eax
movl $0,(%eax)
popl %eax
PIC_EPILOGUE
#else
movl $0,__logname_valid
#endif
ret /* setlogin(name) */