Added setjmp(), sigsetjmp(), and friends from FreeBSD.
git-svn-id: file:///srv/svn/repos/haiku/trunk/current@8761 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler
parent
6914fa8c77
commit
7be5564a86
8
src/kernel/libroot/posix/arch/x86/Jamfile
Normal file
8
src/kernel/libroot/posix/arch/x86/Jamfile
Normal file
@ -0,0 +1,8 @@
|
||||
SubDir OBOS_TOP src kernel libroot posix arch x86 ;
|
||||
|
||||
KernelMergeObject posix_arch_$(OBOS_ARCH).o :
|
||||
_setjmp.S
|
||||
setjmp.S
|
||||
sigsetjmp.S
|
||||
: -fPIC -DPIC
|
||||
;
|
||||
79
src/kernel/libroot/posix/arch/x86/_setjmp.S
Normal file
79
src/kernel/libroot/posix/arch/x86/_setjmp.S
Normal file
@ -0,0 +1,79 @@
|
||||
/*
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "asm.h"
|
||||
|
||||
/*
|
||||
* C library -- _setjmp, _longjmp
|
||||
*
|
||||
* _longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* _setjmp(a)
|
||||
* by restoring registers from the environment 'a'.
|
||||
* The previous signal state is NOT restored.
|
||||
*/
|
||||
|
||||
ENTRY(_setjmp)
|
||||
movl 4(%esp),%eax
|
||||
movl 0(%esp),%edx
|
||||
movl %edx, 0(%eax) /* rta */
|
||||
movl %ebx, 4(%eax)
|
||||
movl %esp, 8(%eax)
|
||||
movl %ebp,12(%eax)
|
||||
movl %esi,16(%eax)
|
||||
movl %edi,20(%eax)
|
||||
fnstcw 24(%eax)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
|
||||
.weak CNAME(_longjmp)
|
||||
.set CNAME(_longjmp),CNAME(___longjmp)
|
||||
ENTRY(___longjmp)
|
||||
movl 4(%esp),%edx
|
||||
movl 8(%esp),%eax
|
||||
movl 0(%edx),%ecx
|
||||
movl 4(%edx),%ebx
|
||||
movl 8(%edx),%esp
|
||||
movl 12(%edx),%ebp
|
||||
movl 16(%edx),%esi
|
||||
movl 20(%edx),%edi
|
||||
fninit
|
||||
fldcw 24(%edx)
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movl %ecx,0(%esp)
|
||||
ret
|
||||
166
src/kernel/libroot/posix/arch/x86/asm.h
Normal file
166
src/kernel/libroot/posix/arch/x86/asm.h
Normal file
@ -0,0 +1,166 @@
|
||||
/*
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#ifndef _MACHINE_ASM_H_
|
||||
#define _MACHINE_ASM_H_
|
||||
|
||||
#ifdef PIC
|
||||
#define PIC_PROLOGUE \
|
||||
pushl %ebx; \
|
||||
call 1f; \
|
||||
1: \
|
||||
popl %ebx; \
|
||||
addl $_GLOBAL_OFFSET_TABLE_+[.-1b],%ebx
|
||||
#define PIC_EPILOGUE \
|
||||
popl %ebx
|
||||
#define PIC_PLT(x) x@PLT
|
||||
#define PIC_GOT(x) x@GOT(%ebx)
|
||||
#else
|
||||
#define PIC_PROLOGUE
|
||||
#define PIC_EPILOGUE
|
||||
#define PIC_PLT(x) x
|
||||
#define PIC_GOT(x) x
|
||||
#endif
|
||||
|
||||
/*
|
||||
* CNAME and HIDENAME manage the relationship between symbol names in C
|
||||
* and the equivalent assembly language names. CNAME is given a name as
|
||||
* it would be used in a C program. It expands to the equivalent assembly
|
||||
* language name. HIDENAME is given an assembly-language name, and expands
|
||||
* to a possibly-modified form that will be invisible to C programs.
|
||||
*/
|
||||
#define CNAME(csym) csym
|
||||
#define HIDENAME(asmsym) __CONCAT(.,asmsym)
|
||||
|
||||
/* XXX should use .p2align 4,0x90 for -m486. */
|
||||
#define _START_ENTRY .text; .p2align 2,0x90
|
||||
|
||||
#define _ENTRY(x) _START_ENTRY; \
|
||||
.globl CNAME(x); .type CNAME(x),@function; CNAME(x):
|
||||
|
||||
#ifdef PROF
|
||||
#define ALTENTRY(x) _ENTRY(x); \
|
||||
pushl %ebp; movl %esp,%ebp; \
|
||||
call PIC_PLT(HIDENAME(mcount)); \
|
||||
popl %ebp; \
|
||||
jmp 9f
|
||||
#define ENTRY(x) _ENTRY(x); \
|
||||
pushl %ebp; movl %esp,%ebp; \
|
||||
call PIC_PLT(HIDENAME(mcount)); \
|
||||
popl %ebp; \
|
||||
9:
|
||||
#else
|
||||
#define ALTENTRY(x) _ENTRY(x)
|
||||
#define ENTRY(x) _ENTRY(x)
|
||||
#endif
|
||||
|
||||
#define RCSID(x) .text; .asciz x
|
||||
|
||||
#undef __FBSDID
|
||||
#if !defined(lint) && !defined(STRIP_FBSDID)
|
||||
#define __FBSDID(s) .ident s
|
||||
#else
|
||||
#define __FBSDID(s) /* nothing */
|
||||
#endif /* not lint and not STRIP_FBSDID */
|
||||
|
||||
#ifdef _ARCH_INDIRECT
|
||||
/*
|
||||
* Generate code to select between the generic functions and _ARCH_INDIRECT
|
||||
* specific ones.
|
||||
* XXX nested __CONCATs don't work with non-ANSI cpp's.
|
||||
*/
|
||||
#define ANAME(x) CNAME(__CONCAT(__CONCAT(__,_ARCH_INDIRECT),x))
|
||||
#define ASELNAME(x) CNAME(__CONCAT(__arch_select_,x))
|
||||
#define AVECNAME(x) CNAME(__CONCAT(__arch_,x))
|
||||
#define GNAME(x) CNAME(__CONCAT(__generic_,x))
|
||||
|
||||
/* Don't bother profiling this. */
|
||||
#ifdef PIC
|
||||
#define ARCH_DISPATCH(x) \
|
||||
_START_ENTRY; \
|
||||
.globl CNAME(x); .type CNAME(x),@function; CNAME(x): ; \
|
||||
PIC_PROLOGUE; \
|
||||
movl PIC_GOT(AVECNAME(x)),%eax; \
|
||||
PIC_EPILOGUE; \
|
||||
jmpl *(%eax)
|
||||
|
||||
#define ARCH_SELECT(x) _START_ENTRY; \
|
||||
.type ASELNAME(x),@function; \
|
||||
ASELNAME(x): \
|
||||
PIC_PROLOGUE; \
|
||||
call PIC_PLT(CNAME(__get_hw_float)); \
|
||||
testl %eax,%eax; \
|
||||
movl PIC_GOT(ANAME(x)),%eax; \
|
||||
jne 8f; \
|
||||
movl PIC_GOT(GNAME(x)),%eax; \
|
||||
8: \
|
||||
movl PIC_GOT(AVECNAME(x)),%edx; \
|
||||
movl %eax,(%edx); \
|
||||
PIC_EPILOGUE; \
|
||||
jmpl *%eax
|
||||
#else /* !PIC */
|
||||
#define ARCH_DISPATCH(x) \
|
||||
_START_ENTRY; \
|
||||
.globl CNAME(x); .type CNAME(x),@function; CNAME(x): ; \
|
||||
jmpl *AVECNAME(x)
|
||||
|
||||
#define ARCH_SELECT(x) _START_ENTRY; \
|
||||
.type ASELNAME(x),@function; \
|
||||
ASELNAME(x): \
|
||||
call CNAME(__get_hw_float); \
|
||||
testl %eax,%eax; \
|
||||
movl $ANAME(x),%eax; \
|
||||
jne 8f; \
|
||||
movl $GNAME(x),%eax; \
|
||||
8: \
|
||||
movl %eax,AVECNAME(x); \
|
||||
jmpl *%eax
|
||||
#endif /* PIC */
|
||||
|
||||
#define ARCH_VECTOR(x) .data; .p2align 2; \
|
||||
.globl AVECNAME(x); \
|
||||
.type AVECNAME(x),@object; \
|
||||
.size AVECNAME(x),4; \
|
||||
AVECNAME(x): .long ASELNAME(x)
|
||||
|
||||
#undef _ENTRY
|
||||
#define _ENTRY(x) ARCH_VECTOR(x); ARCH_SELECT(x); ARCH_DISPATCH(x); \
|
||||
_START_ENTRY; \
|
||||
.globl ANAME(x); .type ANAME(x),@function; ANAME(x):
|
||||
|
||||
#endif /* _ARCH_INDIRECT */
|
||||
|
||||
#endif /* !_MACHINE_ASM_H_ */
|
||||
97
src/kernel/libroot/posix/arch/x86/setjmp.S
Normal file
97
src/kernel/libroot/posix/arch/x86/setjmp.S
Normal file
@ -0,0 +1,97 @@
|
||||
/*
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "asm.h"
|
||||
|
||||
/*
|
||||
* C library -- _setjmp, _longjmp
|
||||
*
|
||||
* longjmp(a,v)
|
||||
* will generate a "return(v)" from the last call to
|
||||
* setjmp(a)
|
||||
* by restoring registers from the environment 'a'.
|
||||
* The previous signal state is restored.
|
||||
*/
|
||||
|
||||
ENTRY(setjmp)
|
||||
movl 4(%esp),%ecx
|
||||
PIC_PROLOGUE
|
||||
leal 28(%ecx), %eax
|
||||
pushl %eax /* (sigset_t*)oset */
|
||||
pushl $0 /* (sigset_t*)set */
|
||||
pushl $1 /* SIG_BLOCK */
|
||||
call PIC_PLT(CNAME(sigprocmask))
|
||||
addl $12,%esp
|
||||
PIC_EPILOGUE
|
||||
movl 4(%esp),%ecx
|
||||
movl 0(%esp),%edx
|
||||
movl %edx, 0(%ecx)
|
||||
movl %ebx, 4(%ecx)
|
||||
movl %esp, 8(%ecx)
|
||||
movl %ebp,12(%ecx)
|
||||
movl %esi,16(%ecx)
|
||||
movl %edi,20(%ecx)
|
||||
fnstcw 24(%ecx)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
|
||||
.weak CNAME(longjmp)
|
||||
.set CNAME(longjmp),CNAME(__longjmp)
|
||||
ENTRY(__longjmp)
|
||||
movl 4(%esp),%edx
|
||||
PIC_PROLOGUE
|
||||
pushl $0 /* (sigset_t*)oset */
|
||||
leal 28(%edx), %eax
|
||||
pushl %eax /* (sigset_t*)set */
|
||||
pushl $3 /* SIG_SETMASK */
|
||||
call PIC_PLT(CNAME(sigprocmask))
|
||||
addl $12,%esp
|
||||
PIC_EPILOGUE
|
||||
movl 4(%esp),%edx
|
||||
movl 8(%esp),%eax
|
||||
movl 0(%edx),%ecx
|
||||
movl 4(%edx),%ebx
|
||||
movl 8(%edx),%esp
|
||||
movl 12(%edx),%ebp
|
||||
movl 16(%edx),%esi
|
||||
movl 20(%edx),%edi
|
||||
fninit
|
||||
fldcw 24(%edx)
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movl %ecx,0(%esp)
|
||||
ret
|
||||
105
src/kernel/libroot/posix/arch/x86/sigsetjmp.S
Normal file
105
src/kernel/libroot/posix/arch/x86/sigsetjmp.S
Normal file
@ -0,0 +1,105 @@
|
||||
/*
|
||||
* Copyright (c) 1990 The Regents of the University of California.
|
||||
* All rights reserved.
|
||||
*
|
||||
* This code is derived from software contributed to Berkeley by
|
||||
* William Jolitz.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by the University of
|
||||
* California, Berkeley and its contributors.
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
#include "asm.h"
|
||||
|
||||
/* TODO:
|
||||
* Rename sigsetjmp to __sigsetjmp and siglongjmp to __siglongjmp,
|
||||
* remove the other *jmp functions and define everything in terms
|
||||
* of the renamed functions. This requires compiler support for
|
||||
* the renamed functions (introduced in gcc-2.5.3; previous versions
|
||||
* only supported *jmp with 0 or 1 leading underscores).
|
||||
*
|
||||
* Restore _all_ the registers and the signal mask atomically. Can
|
||||
* use sigreturn() if sigreturn() works.
|
||||
*/
|
||||
|
||||
ENTRY(__sigsetjmp)
|
||||
//ENTRY(sigsetjmp)
|
||||
movl 8(%esp),%eax
|
||||
movl 4(%esp),%ecx
|
||||
movl %eax,44(%ecx)
|
||||
testl %eax,%eax
|
||||
jz 2f
|
||||
PIC_PROLOGUE
|
||||
leal 28(%ecx), %eax
|
||||
pushl %eax /* (sigset_t*)oset */
|
||||
pushl $0 /* (sigset_t*)set */
|
||||
pushl $1 /* SIG_BLOCK */
|
||||
call PIC_PLT(CNAME(sigprocmask))
|
||||
addl $12,%esp
|
||||
PIC_EPILOGUE
|
||||
movl 4(%esp),%ecx
|
||||
2: movl 0(%esp),%edx
|
||||
movl %edx, 0(%ecx)
|
||||
movl %ebx, 4(%ecx)
|
||||
movl %esp, 8(%ecx)
|
||||
movl %ebp,12(%ecx)
|
||||
movl %esi,16(%ecx)
|
||||
movl %edi,20(%ecx)
|
||||
fnstcw 24(%ecx)
|
||||
xorl %eax,%eax
|
||||
ret
|
||||
|
||||
.weak CNAME(siglongjmp);
|
||||
.set CNAME(siglongjmp),CNAME(__siglongjmp);
|
||||
ENTRY(__siglongjmp);
|
||||
movl 4(%esp),%edx
|
||||
cmpl $0,44(%edx)
|
||||
jz 2f
|
||||
PIC_PROLOGUE
|
||||
pushl $0 /* (sigset_t*)oset */
|
||||
leal 28(%edx), %eax
|
||||
pushl %eax /* (sigset_t*)set */
|
||||
pushl $3 /* SIG_SETMASK */
|
||||
call PIC_PLT(CNAME(sigprocmask))
|
||||
addl $12,%esp
|
||||
PIC_EPILOGUE
|
||||
movl 4(%esp),%edx
|
||||
2: movl 8(%esp),%eax
|
||||
movl 0(%edx),%ecx
|
||||
movl 4(%edx),%ebx
|
||||
movl 8(%edx),%esp
|
||||
movl 12(%edx),%ebp
|
||||
movl 16(%edx),%esi
|
||||
movl 20(%edx),%edi
|
||||
fninit
|
||||
fldcw 24(%edx)
|
||||
testl %eax,%eax
|
||||
jnz 1f
|
||||
incl %eax
|
||||
1: movl %ecx,0(%esp)
|
||||
ret
|
||||
Loading…
Reference in New Issue
Block a user