glibc/sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S
Ulrich Drepper 8e2949409c Update.
2001-08-14  Tom Rix  <trix@redhat.com>

	* iconv/gconv_cache.c (find_module): Add #ifndef STATIC_GCONV.
	* iconv/Makefile: Fix gconv_cache.c CFLAGS.

2001-08-13  Tom Rix  <trix@redhat.com>

	* sysdeps/unix/sysv/aix/Makefile: Add rule to import kernel symbols.
	* sysdeps/unix/sysv/aix/bits/types.h: Fix type of __id_t, __useconds_t
	and __intptr_t.

2001-08-15  Martin Schwidefsky  <schwidefsky@de.ibm.com>

	* sysdeps/unix/sysv/linux/s390/s390-32/getcontext.S (__getcontext):
	Store the access registers to the ucontext structure.
	* sysdeps/unix/sysv/linux/s390/s390-64/getcontext.S (__getcontext):
	Likewise.

	* sysdeps/unix/sysv/linux/s390/s390-32/setcontext.S (__setcontext):
	Load the access registers from the ucontext structure.
	* sysdeps/unix/sysv/linux/s390/s390-64/setcontext.S (__setcontext):
	Likewise.

	* sysdeps/unix/sysv/linux/s390/s390-32/ucontext_i.h: Adjust the SC_xxx
	offsets to the new ucontext layout.
	* sysdeps/unix/sysv/linux/s390/s390-64/ucontext_i.h: Likewise.

	* sysdeps/unix/sysv/linux/s390/s390-32/sys/ucontext.h: Fix the layout
	of the ucontext structure.
	* sysdeps/unix/sysv/linux/s390/s390-64/sys/ucontext.h: Likewise.
2001-08-16 05:39:18 +00:00

73 lines
2.2 KiB
ArmAsm

/* Copyright (C) 2001 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <sysdep.h>
#include <features.h>
#include "ucontext_i.h"
/* __setcontext (const ucontext_t *ucp)
Restores the machine context in UCP and thereby resumes execution
in that context.
This implementation is intended to be used for *synchronous* context
switches only. Therefore, it does not have to restore anything
other than the PRESERVED state. */
ENTRY(__setcontext)
lr %r5,%r2
/* sigprocmask (SIG_SETMASK, &sc->sc_mask, NULL). */
la %r2,SIG_BLOCK
la %r3,SC_MASK(%r5)
slr %r4,%r4
svc SYS_ify(rt_sigprocmask)
/* Load fpu context. */
lfpc SC_FPC(%r5)
ld %f0,SC_FPRS(%r5)
ld %f1,SC_FPRS+8(%r5)
ld %f2,SC_FPRS+16(%r5)
ld %f3,SC_FPRS+24(%r5)
ld %f4,SC_FPRS+32(%r5)
ld %f5,SC_FPRS+40(%r5)
ld %f6,SC_FPRS+48(%r5)
ld %f7,SC_FPRS+56(%r5)
ld %f8,SC_FPRS+64(%r5)
ld %f9,SC_FPRS+72(%r5)
ld %f10,SC_FPRS+80(%r5)
ld %f11,SC_FPRS+88(%r5)
ld %f12,SC_FPRS+96(%r5)
ld %f13,SC_FPRS+104(%r5)
ld %f14,SC_FPRS+112(%r5)
ld %f15,SC_FPRS+120(%r5)
/* Don't touch %a0, used for thread purposes. */
lam %a1,%a15,SC_ACRS+4(%r5)
/* Load general purpose registers. */
lm %r0,%r15,SC_GPRS(%r5)
/* Return. */
br %r14
END(__setcontext)
weak_alias(__setcontext, setcontext)