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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.
* 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.
Restore CSRG ID's lost in January 1995.
2002-03-23 02:10:28 +00:00
*
* @(#)setjmp.s 5.1 (Berkeley) 4/23/90"
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
*/
Restore CSRG ID's lost in January 1995.
2002-03-23 02:10:28 +00:00
#if defined(LIBC_SCCS) && !defined(lint)
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
.text
Restore CSRG ID's lost in January 1995.
2002-03-23 02:10:28 +00:00
.asciz "$Id: sigsetjmp.S,v 1.1 1993/12/05 13:01:05 ats Exp $"
#endif /* LIBC_SCCS and not lint */
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
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 "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).
*
* Restore _all_ the registers and the signal mask atomically. Can
* use sigreturn() if sigreturn() works.
*/
Remove unnecessary alternate entry points for *setjmp(). Make the main entry point the standard name when not compiling libc_r (for example, longjmp is the main entry point instead of __longjmp). Suggested by: bde
2000-01-20 21:58:27 +00:00
ENTRY(sigsetjmp)
Cosmetic; record offsets used within jmpbuf
2003-06-02 22:37:53 +00:00
movl %esi,88(%rdi) /* 11; savemask */
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
testl %esi,%esi
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
Fix an embarresing transcription error from i386 to amd64. Put the arguments to sigprocmask(2) int the correct order. *blush*. For sigsetjmp(), match up the pushq/popq in the non-savemask case.
2003-05-08 06:25:03 +00:00
pushq %rdi
Fix sigsetjmp(). It helps if we do not try to save the old signal mask to a random memory location. Perl works a lot better with this.
2003-06-02 21:59:13 +00:00
movq %rdi,%rcx
Fix an embarresing transcription error from i386 to amd64. Put the arguments to sigprocmask(2) int the correct order. *blush*. For sigsetjmp(), match up the pushq/popq in the non-savemask case.
2003-05-08 06:25:03 +00:00
movq $1,%rdi /* SIG_BLOCK */
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
movq $0,%rsi /* (sigset_t*)set */
Cosmetic; record offsets used within jmpbuf
2003-06-02 22:37:53 +00:00
leaq 72(%rcx),%rdx /* 9,10 (sigset_t*)oset */
Remove _THREAD_SAFE and make libc thread-safe by default by adding (weak definitions to) stubs for some of the pthread functions. If the threads library is linked in, the real pthread functions will pulled in. Use the following convention for system calls wrapped by the threads library: __sys_foo - actual system call _foo - weak definition to __sys_foo foo - weak definition to __sys_foo Change all libc uses of system calls wrapped by the threads library from foo to _foo. In order to define the prototypes for _foo(), we introduce namespace.h and un-namespace.h (suggested by bde). All files that need to reference these system calls, should include namespace.h before any standard includes, then include un-namespace.h after the standard includes and before any local includes. <db.h> is an exception and shouldn't be included in between namespace.h and un-namespace.h namespace.h will define foo to _foo, and un-namespace.h will undefine foo. Try to eliminate some of the recursive calls to MT-safe functions in libc/stdio in preparation for adding a mutex to FILE. We have recursive mutexes, but would like to avoid using them if possible. Remove uneeded includes of <errno.h> from a few files. Add $FreeBSD$ to a few files in order to pass commitprep. Approved by: -arch
2001-01-24 13:01:12 +00:00
call PIC_PLT(CNAME(_sigprocmask))
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
popq %rdi
Fix an embarresing transcription error from i386 to amd64. Put the arguments to sigprocmask(2) int the correct order. *blush*. For sigsetjmp(), match up the pushq/popq in the non-savemask case.
2003-05-08 06:25:03 +00:00
2: movq %rdi,%rcx
movq 0(%rsp),%rdx /* retval */
Cosmetic; record offsets used within jmpbuf
2003-06-02 22:37:53 +00:00
movq %rdx, 0(%rcx) /* 0; retval */
movq %rbx, 8(%rcx) /* 1; rbx */
movq %rsp,16(%rcx) /* 2; rsp */
movq %rbp,24(%rcx) /* 3; rbp */
movq %r12,32(%rcx) /* 4; r12 */
movq %r13,40(%rcx) /* 5; r13 */
movq %r14,48(%rcx) /* 6; r14 */
movq %r15,56(%rcx) /* 7; r15 */
fnstcw 64(%rcx) /* 8; fpu cw */
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
xorq %rax,%rax
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
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
.weak CNAME(siglongjmp)
.set CNAME(siglongjmp),CNAME(__siglongjmp)
ENTRY(__siglongjmp)
cmpl $0,88(%rdi)
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
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
movq %rdi,%rdx
pushq %rdi
pushq %rsi
Fix an embarresing transcription error from i386 to amd64. Put the arguments to sigprocmask(2) int the correct order. *blush*. For sigsetjmp(), match up the pushq/popq in the non-savemask case.
2003-05-08 06:25:03 +00:00
movq $3,%rdi /* SIG_SETMASK */
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
leaq 72(%rdx),%rsi /* (sigset_t*)set */
Fix an embarresing transcription error from i386 to amd64. Put the arguments to sigprocmask(2) int the correct order. *blush*. For sigsetjmp(), match up the pushq/popq in the non-savemask case.
2003-05-08 06:25:03 +00:00
movq $0,%rdx /* (sigset_t*)oset */
Remove _THREAD_SAFE and make libc thread-safe by default by adding (weak definitions to) stubs for some of the pthread functions. If the threads library is linked in, the real pthread functions will pulled in. Use the following convention for system calls wrapped by the threads library: __sys_foo - actual system call _foo - weak definition to __sys_foo foo - weak definition to __sys_foo Change all libc uses of system calls wrapped by the threads library from foo to _foo. In order to define the prototypes for _foo(), we introduce namespace.h and un-namespace.h (suggested by bde). All files that need to reference these system calls, should include namespace.h before any standard includes, then include un-namespace.h after the standard includes and before any local includes. <db.h> is an exception and shouldn't be included in between namespace.h and un-namespace.h namespace.h will define foo to _foo, and un-namespace.h will undefine foo. Try to eliminate some of the recursive calls to MT-safe functions in libc/stdio in preparation for adding a mutex to FILE. We have recursive mutexes, but would like to avoid using them if possible. Remove uneeded includes of <errno.h> from a few files. Add $FreeBSD$ to a few files in order to pass commitprep. Approved by: -arch
2001-01-24 13:01:12 +00:00
call PIC_PLT(CNAME(_sigprocmask))
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
popq %rsi
popq %rdi /* jmpbuf */
2: movq %rdi,%rdx
movq %rsi,%rax /* retval */
movq 0(%rdx),%rcx
movq 8(%rdx),%rbx
movq 16(%rdx),%rsp
movq 24(%rdx),%rbp
movq 32(%rdx),%r12
movq 40(%rdx),%r13
movq 48(%rdx),%r14
movq 56(%rdx),%r15
Reenable sigsetjmp.S. Preserve the FP state. Rearrange offsets to match setjmp.S.
1994-10-25 14:08:13 +00:00
fninit
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
fldcw 64(%rdx)
testq %rax,%rax
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
Update for AMD64 contexts. Note that this still has some x87-style FPU instructions here, these may need to be updated for SSE. (Repocopied from i386/gen)
2003-04-30 18:09:33 +00:00
incq %rax
1: movq %rcx,0(%rsp)
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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