This is the mail archive of the libc-hacker@sources.redhat.com mailing list for the glibc project.
Note that libc-hacker is a closed list. You may look at the archives of this list, but subscription and posting are not open.
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |
Other format: | [Raw text] |
Here are the corresponding changes for ia64. Andreas. 2004-03-10 Andreas Schwab <schwab@suse.de> * sysdeps/ia64/tcb-offsets.sym: Add PID. * sysdeps/unix/sysv/linux/ia64/vfork.S: New file. * sysdeps/unix/sysv/linux/ia64/pt-vfork.S: Properly handle PID cache. --- nptl/sysdeps/ia64/tcb-offsets.sym.~1.5.~ 2003-12-11 11:35:12.000000000 +0100 +++ nptl/sysdeps/ia64/tcb-offsets.sym 2004-03-09 10:49:45.000000000 +0100 @@ -1,5 +1,6 @@ #include <sysdep.h> #include <tls.h> +PID offsetof (struct pthread, pid) - sizeof (struct pthread) MULTIPLE_THREADS_OFFSET offsetof (struct pthread, header.multiple_threads) - sizeof (struct pthread) SYSINFO_OFFSET offsetof (tcbhead_t, private) --- nptl/sysdeps/unix/sysv/linux/ia64/pt-vfork.S.~1.2.~ 2003-12-11 11:35:12.000000000 +0100 +++ nptl/sysdeps/unix/sysv/linux/ia64/pt-vfork.S 2004-03-10 11:28:34.057587179 +0100 @@ -1,4 +1,4 @@ -/* Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc. +/* Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -32,13 +32,22 @@ ENTRY(__vfork) .prologue // work around a GAS bug which triggers if .body // first .prologue is not at the beginning of proc. - alloc r2=ar.pfs,0,0,2,0 + alloc r2=ar.pfs,0,1,2,0 + adds r14=PID,r13 + ;; + ld4 loc0=[r14] + ;; + sub r15=0,loc0 mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD mov out1=0 /* Standard sp value. */ ;; + st4 [r14]=r15 DO_CALL (SYS_ify (clone)) + cmp.eq p0,p7=0,r8 cmp.eq p6,p0=-1,r10 + adds r14=PID,r13 ;; +(p7) st4 [r14]=loc0 (p6) br.cond.spnt.few __syscall_error ret PSEUDO_END(__vfork) --- /dev/null 2004-02-28 23:52:18.000000000 +0100 +++ nptl/sysdeps/unix/sysv/linux/ia64/vfork.S 2004-03-10 09:36:47.000000000 +0100 @@ -0,0 +1,58 @@ +/* Copyright (C) 2000, 2002, 2004 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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> +#define _SIGNAL_H +#include <bits/signum.h> +#include <tcb-offsets.h> + +/* The following are defined in linux/sched.h, which unfortunately */ +/* is not safe for inclusion in an assembly file. */ +#define CLONE_VM 0x00000100 /* set if VM shared between processes */ +#define CLONE_VFORK 0x00004000 /* set if the parent wants the child to wake it up on mm_release */ + +/* pid_t vfork(void); */ +/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */ + +ENTRY(__vfork) + alloc r2=ar.pfs,0,1,2,0 + adds r14=PID,r13 + ;; + ld4 loc0=[r14] + ;; + sub r15=0,loc0 + cmp.eq p0,p6=0,loc0 + ;; +(p6) movl r15=0x80000000 + mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD + mov out1=0 /* Standard sp value. */ + st4 [r14]=r15 + ;; + DO_CALL_VIA_BREAK (SYS_ify (clone)) + cmp.eq p0,p7=0,r8 + cmp.eq p6,p0=-1,r10 + adds r14=PID,r13 + ;; +(p7) st4 [r14]=loc0 +(p6) br.cond.spnt.few __syscall_error + ret +PSEUDO_END(__vfork) +libc_hidden_def (__vfork) + +weak_alias (__vfork, vfork) -- Andreas Schwab, SuSE Labs, schwab@suse.de SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5 "And now for something completely different."
Index Nav: | [Date Index] [Subject Index] [Author Index] [Thread Index] | |
---|---|---|
Message Nav: | [Date Prev] [Date Next] | [Thread Prev] [Thread Next] |