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567678b685
2003-01-30 Jakub Jelinek <jakub@redhat.com> * sysdeps/alpha/tls.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Avoid warnings about unused self variable. * sysdeps/ia64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/s390/s390-32/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/s390/s390-64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/sh/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/sparc/sparc32/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise. * sysdeps/sparc/sparc64/pt-machine.h (THREAD_GETMEM, THREAD_GETMEM_NC, THREAD_SETMEM, THREAD_SETMEM_NC): Likewise.
76 lines
2.7 KiB
ArmAsm
76 lines
2.7 KiB
ArmAsm
/* Copyright (C) 2000, 2001 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, write to the Free
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Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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02111-1307 USA. */
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/* clone is even more special than fork as it mucks with stacks
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and invokes a function in the right context after its all over. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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/* int __clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
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pid_t *parent_tid, void *tls, pid_t *child_tid); */
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/* sys_clone (void *child_stack, unsigned long flags,
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pid_t *parent_tid, pid_t *child_tid, void *tls); */
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.text
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ENTRY(__clone)
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st %r6,24(%r15) /* store %r6 to save area */
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lr %r0,%r5 /* move *arg out of the way */
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ltr %r1,%r2 /* check fn and move to %r1 */
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jz error /* no NULL function pointers */
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ltr %r2,%r3 /* check child_stack and move to %r2 */
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jz error /* no NULL stack pointers */
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lr %r3,%r4 /* move flags to %r3 */
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lr %r4,%r6 /* move parent_tid to %r4 */
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l %r5,100(%r15) /* load child_tid from stack */
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l %r6,96(%r15) /* load tls from stack */
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svc SYS_ify(clone)
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ltr %r2,%r2 /* check return code */
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jz thread_start
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l %r6,24(%r15) /* restore %r6 */
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jm SYSCALL_ERROR_LABEL
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br %r14
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error:
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lhi %r2,-EINVAL
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j SYSCALL_ERROR_LABEL
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thread_start:
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/* fn is in gpr 1, arg in gpr 0 */
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lr %r2,%r0 /* set first parameter to void *arg */
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ahi %r15,-96 /* make room on the stack for the save area */
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xc 0(4,%r15),0(%r15)
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basr %r14,%r1 /* jump to fn */
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#ifdef PIC
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basr %r12,0
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.L0: lr %r1,%r12
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al %r12,.L1-.L0(%r12)
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al %r1,.L2-.L0(%r1)
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br %r1 /* branch to _exit -> thread termination */
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.L1: .long _GLOBAL_OFFSET_TABLE_ - .L0
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.L2: .long _exit@PLT - .L0
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#else
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basr %r1,0
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.L0: al %r1,.L1-.L0(0,%r1)
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br %r1 /* branch to _exit -> thread termination */
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.L1: .long _exit - .L0
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#endif
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PSEUDO_END (__clone)
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weak_alias (__clone, clone)
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