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freebsd-dev/lib/libc/amd64/gen/sigsetjmp.S

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First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
/*-
* 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.
*
Stop renaming these in libc_r because wrappered versions don't make sense. PR: i386/4826, bin/5953
1998-04-29 09:14:35 +00:00
* $Id: sigsetjmp.S,v 1.10 1997/02/22 14:58:43 peter Exp $
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
*/
First round of changes to clean up the RCSID mess in libc: 1) Changed LIB_SCCS and SYSLIB_SCCS to LIB_RCS and SYSLIB_RCS. 2) Changed sccsid[] variables to rcsid[] 3) Moved all RCSID strings into .text 4) Converted all SCCSID's to RCS $Id$'s 5) Added missing $Id$'s after copyright.
1995-01-23 01:30:24 +00:00
#if defined(LIBC_RCS) && !defined(lint)
.text
Stop renaming these in libc_r because wrappered versions don't make sense. PR: i386/4826, bin/5953
1998-04-29 09:14:35 +00:00
.asciz "$Id: sigsetjmp.S,v 1.10 1997/02/22 14:58:43 peter Exp $"
First round of changes to clean up the RCSID mess in libc: 1) Changed LIB_SCCS and SYSLIB_SCCS to LIB_RCS and SYSLIB_RCS. 2) Changed sccsid[] variables to rcsid[] 3) Moved all RCSID strings into .text 4) Converted all SCCSID's to RCS $Id$'s 5) Added missing $Id$'s after copyright.
1995-01-23 01:30:24 +00:00
#endif /* LIBC_RCS and not lint */
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
#include "DEFS.h"
#include "SYS.h"
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
/*-
* 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).
*
* Use sigprocmask() instead of sigblock() and sigsetmask(), and
* check for and handle errors.
*
* Restore _all_ the registers and the signal mask atomically. Can
* use sigreturn() if sigreturn() works.
*/
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
ENTRY(sigsetjmp)
movl 8(%esp),%eax
movl 4(%esp),%ecx
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
movl %eax,32(%ecx)
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
testl %eax,%eax
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
jz 2f
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
PIC_PROLOGUE
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
pushl $0
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#ifdef _THREAD_SAFE
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
call PIC_PLT(CNAME(_thread_sys_sigblock))
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#else
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
call PIC_PLT(CNAME(sigblock))
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#endif
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
addl $4,%esp
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
PIC_EPILOGUE
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
movl 4(%esp),%ecx
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
movl %eax,24(%ecx)
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
2: movl 0(%esp),%edx
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
movl %edx, 0(%ecx)
movl %ebx, 4(%ecx)
movl %esp, 8(%ecx)
movl %ebp,12(%ecx)
movl %esi,16(%ecx)
movl %edi,20(%ecx)
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
fnstcw 28(%ecx)
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
xorl %eax,%eax
ret
ENTRY(siglongjmp)
movl 4(%esp),%edx
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
cmpl $0,32(%edx)
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
jz 2f
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
PIC_PROLOGUE
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
pushl 24(%edx)
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#ifdef _THREAD_SAFE
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
call PIC_PLT(CNAME(_thread_sys_sigsetmask))
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#else
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
call PIC_PLT(CNAME(sigsetmask))
Reviewed by: julian and (hsu?) Submitted by: John Birrel(L?) changes for threadsafe operations
1996-01-22 00:02:33 +00:00
#endif
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
addl $4,%esp
Add support to enable libc to be compiled in ELF format. (#ifdef __ELF__) In a nutshell, this macroizes the local/global symbol scoping rules that are different in a.out and ELF. It also makes the i386 assembler stubs conform to i386 PIC calling conventions - the a.out ld.so didn't object, but the ELF one needs it as it implements PIC jumps via PLT's as well as calls. The a.out rtld only worked because it was accidently snooping the grandparent calling function's return address off the stack.. This also affects the libc_r code a little, because of cpp macro nesting.
1996-05-05 07:56:21 +00:00
PIC_EPILOGUE
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
2: movl 4(%esp),%edx
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
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
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
fninit
fldcw 28(%edx)
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
testl %eax,%eax
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
jnz 1f
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
incl %eax
Fix a bug caused by the collision of a local assembler label with another use of the same label in a recently-introduced PIC_PROLOGUE. This should solve the recent core dumps from pdksh.
1996-05-11 13:28:11 +00:00
1: movl %ecx,0(%esp)
First crack at making libc work with the new make macros. It compiles on my machine, and a simple static (genassym) and shared (sysctl) executable both work. Still to be done: RPCand YP merge.
1994-08-05 01:19:12 +00:00
ret
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