diff options
author | Ulrich Drepper <drepper@redhat.com> | 2000-10-07 22:28:05 +0000 |
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committer | Ulrich Drepper <drepper@redhat.com> | 2000-10-07 22:28:05 +0000 |
commit | 9b767d19e6f76c10bb0486c113f28145fdd850e5 (patch) | |
tree | caf551d34b76bb965f7a4861057670a19f71b43b /sysdeps/unix/sysv/linux/ia64/clone.S | |
parent | 19e89d15a12b23d3737991e9b2f094445b2123fa (diff) |
Update.
2000-10-07 Ulrich Drepper <drepper@redhat.com>
* include/features.h (__STDC_ISO_10646__): Set to correct date.
Patch by Markus Kuhn <Markus.Kuhn@cl.cam.ac.uk>.
2000-10-06 Jes Sorensen <jes@linuxcare.com>
* sysdeps/ia64/fpu/fraiseexcpt.c (feraiseexcept): Implement
overflow generation by adding DBL_MAX to DBL_MAX instead of
setting the bits manually in the fpsr and generating the exception
with kill() if necessary.
(feraiseexcept): Implement underflow by dividing DBL_MIN by
DBL_MIN - similar to the overflow change described above.
2000-08-27 H.J. Lu <hjl@gnu.org>
* sysdeps/unix/sysv/linux/ia64/clone.S: Make it a dummy as clone
is not supported under Linux/ia64, use clone2.
2000-10-06 Jakub Jelinek <jakub@redhat.com>
* malloc/malloc.h (__THROW): Define to nothing if not gcc.
* misc/sys/cdefs.h (__THROW): Likewise.
Diffstat (limited to 'sysdeps/unix/sysv/linux/ia64/clone.S')
-rw-r--r-- | sysdeps/unix/sysv/linux/ia64/clone.S | 77 |
1 files changed, 1 insertions, 76 deletions
diff --git a/sysdeps/unix/sysv/linux/ia64/clone.S b/sysdeps/unix/sysv/linux/ia64/clone.S index 75a33d2f2c..0cfaeab64e 100644 --- a/sysdeps/unix/sysv/linux/ia64/clone.S +++ b/sysdeps/unix/sysv/linux/ia64/clone.S @@ -1,76 +1 @@ -/* Copyright (C) 1999,2000 Free Software Foundation, Inc. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Library General Public License as - published by the Free Software Foundation; either version 2 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 - Library General Public License for more details. - - You should have received a copy of the GNU Library General Public - License along with the GNU C Library; see the file COPYING.LIB. If not, - write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, - Boston, MA 02111-1307, USA. */ - -/* clone is even more special than fork as it mucks with stacks - and invokes a function in the right context after its all over. */ - -#include <sysdep.h> - -/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg); */ - -/* - * Used for both clone and fork system calls. Note that if fn is NULL - * then clone was called from fork. - */ - -ENTRY(__clone) - add r2 = -16, r33 // save space for fn and arg - cmp.ne p6,p0 = 0,r33 - ;; -(p6) add r33 = -16, r33 - add r12 = -16, r12 - ;; -(p6) st8 [r2] = r32, 8 // save fn for child - st8 [r12] = r32 // save fn for parent - ;; -(p6) st8 [r2] = r35 // save arg for child - mov r32 = r34 // put flags in out0 - DO_CALL (SYS_ify (clone)) -1: - ld8 r33 = [r12], 8 // recover fn - ;; - ld8 r32 = [r12], 8 // recover arg - - cmp.eq p6,p0=-1,r10 -(p6) br.cond.spnt.many __syscall_error // handle error - - cmp.ne p7,p0=0,r8 -(p7) ret // parent process, just return - - cmp.eq p8,p0=0,r33 -(p8) ret // fork call, return - - alloc loc0 = ar.pfs,2,2,2,0 - ;; - ld8 r2 = [in1], 8 // get address of fn - mov out0 = in0 - mov loc1 = gp // save gp across indirect call - ;; - ld8 gp = [in1] // set new gp - mov b6 = r2 - br.call.sptk b0 = b6 // call thread routine - ;; - - mov ar.pfs = loc0 - mov gp = loc1 - mov r32 = r8 // exit value - ;; - br.call.sptk b0 = _exit // we're out of here - -PSEUDO_END(__clone) - -weak_alias (__clone, clone) +/* clone is not supported under Linux/ia64, use clone2. */ |