2014-08-04 Roland McGrath <roland@hack.frob.com>
+ * sysdeps/unix/sysv/linux/ia64/nptl/vfork.S: Moved ...
+ * sysdeps/unix/sysv/linux/ia64/vfork.S: ... here.
+ (__libc_vfork): Define function under this name.
+ (__vfork): Define as an alias.
+ * sysdeps/unix/sysv/linux/ia64/pt-vfork.S: New file.
+ * sysdeps/unix/sysv/linux/ia64/nptl/pt-vfork.S: File removed.
+
+2014-08-04 Roland McGrath <roland@hack.frob.com>
+
* sysdeps/unix/sysv/linux/ia64/clone2.S: Deconditionalize the code
that was previously under [RESET_PID].
* sysdeps/unix/sysv/linux/ia64/nptl/clone2.S: File removed.
+++ /dev/null
-/* Copyright (C) 2000-2014 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, see
- <http://www.gnu.org/licenses/>. */
-
-
-#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)
- .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
- adds r14=PID,r13
- ;;
- ld4 r16=[r14]
- ;;
- sub r15=0,r16
- 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
- adds r14=PID,r13
- ;;
-(p7) ld4 r16=[r14]
- cmp.eq p6,p0=-1,r10
- ;;
-(p7) sub r15=0,r16
- ;;
-(p7) st4 [r14]=r15
-(p6) br.cond.spnt.few __syscall_error
- ret
-PSEUDO_END(__vfork)
-
-weak_alias (__vfork, vfork)
+++ /dev/null
-/* Copyright (C) 2000-2014 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, see
- <http://www.gnu.org/licenses/>. */
-
-
-#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)
- .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
- adds r14=PID,r13
- ;;
- ld4 r16=[r14]
- ;;
- sub r15=0,r16
- cmp.eq p6,p0=0,r16
- ;;
-(p6) movl r15=0x80000000
- mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
- mov out1=0 /* Standard sp value. */
- ;;
- st4 [r14]=r15
- DO_CALL (SYS_ify (clone))
- cmp.eq p6,p0=0,r8
- adds r14=PID,r13
-(p6) br.cond.dptk 1f
- ;;
- ld4 r15=[r14]
- ;;
- extr.u r16=r15,0,31
- ;;
- cmp.eq p0,p6=0,r16
- ;;
-(p6) sub r16=0,r15
- ;;
- st4 [r14]=r16
-1:
- cmp.eq p6,p0=-1,r10
-(p6) br.cond.spnt.few __syscall_error
- ret
-PSEUDO_END(__vfork)
-libc_hidden_def (__vfork)
-weak_alias (__vfork, vfork)
--- /dev/null
+/* vfork ABI-compatibility entry points for libpthread. IA64 version.
+ Copyright (C) 2014 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, see
+ <http://www.gnu.org/licenses/>. */
+
+#include <sysdep.h>
+#include <shlib-compat.h>
+
+/* libpthread used to have its own vfork implementation that differed
+ from libc's only in having a pointless micro-optimization. There
+ is no longer any use to having a separate copy in libpthread, but
+ the historical ABI requires it. For static linking, there is no
+ need to provide anything here--the libc version will be linked in.
+ For shared library ABI compatibility, there must be __vfork and
+ vfork symbols in libpthread.so. */
+
+#if (SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20) \
+ || SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20))
+
+LOCAL_LEAF (vfork_compat)
+ br __libc_vfork
+ ;;
+END (vfork_compat)
+
+#endif
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_0, GLIBC_2_20)
+weak_alias (vfork_compat, vfork)
+compat_symbol (libpthread, vfork_compat, vfork, GLIBC_2_0);
+#endif
+
+#if SHLIB_COMPAT (libpthread, GLIBC_2_1_2, GLIBC_2_20)
+strong_alias (vfork_compat, __vfork_compat)
+compat_symbol (libpthread, __vfork_compat, __vfork, GLIBC_2_1_2);
+#endif
#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. */
/* pid_t vfork(void); */
/* Implemented as __clone_syscall(CLONE_VFORK | CLONE_VM | SIGCHLD, 0) */
-ENTRY(__vfork)
+ENTRY (__libc_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
+ adds r14=PID,r13
+ ;;
+ ld4 r16=[r14]
+ ;;
+ sub r15=0,r16
+ cmp.eq p6,p0=0,r16
+ ;;
+(p6) movl r15=0x80000000
mov out0=CLONE_VM+CLONE_VFORK+SIGCHLD
mov out1=0 /* Standard sp value. */
;;
- DO_CALL_VIA_BREAK (SYS_ify (clone))
+ st4 [r14]=r15
+ DO_CALL (SYS_ify (clone))
+ cmp.eq p6,p0=0,r8
+ adds r14=PID,r13
+(p6) br.cond.dptk 1f
+ ;;
+ ld4 r15=[r14]
+ ;;
+ extr.u r16=r15,0,31
+ ;;
+ cmp.eq p0,p6=0,r16
+ ;;
+(p6) sub r16=0,r15
+ ;;
+ st4 [r14]=r16
+1:
cmp.eq p6,p0=-1,r10
(p6) br.cond.spnt.few __syscall_error
ret
-PSEUDO_END(__vfork)
-libc_hidden_def (__vfork)
+PSEUDO_END (__libc_vfork)
+strong_alias (__libc_vfork, __vfork)
+libc_hidden_def (__vfork)
weak_alias (__vfork, vfork)
projects / platform / upstream / glibc.git / commitdiff