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| author | Roland McGrath <roland@gnu.org> | 1995-03-06 00:27:08 +0000 |
|---|---|---|
| committer | Roland McGrath <roland@gnu.org> | 1995-03-06 00:27:08 +0000 |
| commit | 6408bdde65cac02ef96ae9f2b77f222b534c0e75 (patch) | |
| tree | 3a10be5fdb3d11bdd95f31a2615c266d5f3e0762 /sysdeps/unix/bsd/vax | |
| parent | 4933a099c29045e0615139c9a55d77862ae8ae6c (diff) | |
| download | glibc-6408bdde65cac02ef96ae9f2b77f222b534c0e75.tar.gz glibc-6408bdde65cac02ef96ae9f2b77f222b534c0e75.tar.xz glibc-6408bdde65cac02ef96ae9f2b77f222b534c0e75.zip | |
Fri Mar 3 12:24:52 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/generic/sys/mman.h (__mmap, __munmap): Declare these. * sysdeps/unix/sysv/irix4/sys/mman.h: Likewise. * sysdeps/unix/bsd/ultrix4/sys/mman.h: Likewise. * sysdeps/unix/bsd/osf1/sys/mman.h: Likewise. * sysdeps/unix/bsd/sun/sunos4/sys/mman.h: Likewise. * sysdeps/stub/munmap.c (munmap): Rename to __munmap, add weak alias munmap. * sysdeps/unix/mman/munmap.S: Likewise. * sysdeps/mach/munmap.c: Likewise. * sysdeps/mach/hurd/mmap.c (mmap): Rename to __mmap, add weak alias mmap. * sysdeps/unix/mman/mmap.S: Likewise. * sysdeps/unix/bsd/sun/sunos4/mmap.c: Likewise. * sysdeps/stub/mmap.c: Likewise. * sysdeps/unix/bsd/setsid.c: Use __getpgid instead of __getpgrp. * sysdeps/unix/dirfd.c: #undef dirfd before function defn. Thu Mar 2 12:15:24 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu> * misc/search.h: Add missing semicolon. * sysdeps/unix/dirfd.c: Fix typo. * sysdeps/generic/sys/mman.h (mmap): Use __off_t instead of off_t in decl. * stdio/vfscanf.c (%c): In no-assign case, fix loop to decrement WIDTH before test.
Diffstat (limited to 'sysdeps/unix/bsd/vax')
| -rw-r--r-- | sysdeps/unix/bsd/vax/vfork.S | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/sysdeps/unix/bsd/vax/vfork.S b/sysdeps/unix/bsd/vax/vfork.S new file mode 100644 index 0000000000..daf8f0f20d --- /dev/null +++ b/sysdeps/unix/bsd/vax/vfork.S @@ -0,0 +1,57 @@ +/* Copyright (C) 1991, 1992, 1995 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 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., 675 Mass Ave, +Cambridge, MA 02139, USA. */ + +#include <sysdep.h> + +#ifndef SYS_vfork +#define SYS_vfork 66 +#endif + +/* Clone the calling process, but without copying the whole address space. + The the calling process is suspended until the the new process exits or is + replaced by a call to `execve'. Return -1 for errors, 0 to the new process, + and the process ID of the new process to the old process. */ +.globl ___vfork +error: jmp syscall_error +___vfork: + .word 0 + /* Save our return address in R2, and return to code below. */ + movl 16(fp), r2 + movab unwind, 16(fp) + ret +unwind: + /* Do the system call. */ + chmk $SYS_vfork + bcs error + + tstl r1 + beq parent + + /* We are the child. Return zero. */ + clrl r0 + + /* Return to the saved address. */ +parent: jmp (r2) + +.globl _errno +error: + movl r0, _errno + mnegl $1, r0 + jmp (r2) + +weak_alias (__vfork, vfork) |