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authorRoland McGrath <roland@gnu.org>1995-03-06 00:27:08 +0000
committerRoland McGrath <roland@gnu.org>1995-03-06 00:27:08 +0000
commit6408bdde65cac02ef96ae9f2b77f222b534c0e75 (patch)
tree3a10be5fdb3d11bdd95f31a2615c266d5f3e0762 /sysdeps/unix/bsd/sun
parent4933a099c29045e0615139c9a55d77862ae8ae6c (diff)
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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/sun')
-rw-r--r--sysdeps/unix/bsd/sun/m68k/vfork.S55
-rw-r--r--sysdeps/unix/bsd/sun/sunos4/mmap.c7
-rw-r--r--sysdeps/unix/bsd/sun/sunos4/sys/mman.h5
3 files changed, 63 insertions, 4 deletions
diff --git a/sysdeps/unix/bsd/sun/m68k/vfork.S b/sysdeps/unix/bsd/sun/m68k/vfork.S
new file mode 100644
index 0000000000..cb7dae8d2b
--- /dev/null
+++ b/sysdeps/unix/bsd/sun/m68k/vfork.S
@@ -0,0 +1,55 @@
+/* Copyright (C) 1991, 1992, 1993, 1994, 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
+___vfork:
+ /* Pop the return PC value into A0. */
+ movel sp@+, a0
+
+ /* Push the syscall number and trap into the kernel. */
+ movel #SYS_vfork, sp@-
+ trap #0
+ bcs error /* Branch forward if it failed. */
+
+ /* It succeeded. See which fork we're in. D1 is now 0 for the
+ parent and 1 for the child. Decrement it to make it -1 (all
+ bits set) for the parent, and 0 (no bits set) for the child.
+ Then AND it with D0, so the parent gets D0&-1==R0, and the child
+ gets D0&0==0. */
+ decl d1
+ andl d1, d0
+
+ /* Jump to the return PC. */
+ jmp a0@
+
+error:
+ movel d0, _errno
+ moveq #-1, d0
+ jmp a0@
+
+weak_alias (__vfork, vfork)
diff --git a/sysdeps/unix/bsd/sun/sunos4/mmap.c b/sysdeps/unix/bsd/sun/sunos4/mmap.c
index 4dfc1ca2da..b71937381b 100644
--- a/sysdeps/unix/bsd/sun/sunos4/mmap.c
+++ b/sysdeps/unix/bsd/sun/sunos4/mmap.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1994 Free Software Foundation, Inc.
+/* Copyright (C) 1994, 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
@@ -34,8 +34,9 @@ extern caddr_t __mmap_syscall (caddr_t addr, size_t len,
caddr_t
-mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
+__mmap (caddr_t addr, size_t len, int prot, int flags, int fd, off_t offset)
{
return __mmap_syscall (addr, len, prot, flags | _MAP_NEW, fd, offset);
}
-
+
+weak_alias (__mmap, mmap)
diff --git a/sysdeps/unix/bsd/sun/sunos4/sys/mman.h b/sysdeps/unix/bsd/sun/sunos4/sys/mman.h
index 727e665fb6..10f31a898e 100644
--- a/sysdeps/unix/bsd/sun/sunos4/sys/mman.h
+++ b/sysdeps/unix/bsd/sun/sunos4/sys/mman.h
@@ -1,5 +1,5 @@
/* Definitions for BSD-style memory management. SunOS 4 version.
-Copyright (C) 1994 Free Software Foundation, Inc.
+Copyright (C) 1994, 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
@@ -80,11 +80,14 @@ __BEGIN_DECLS
for errors (in which case `errno' is set). A successful `mmap' call
deallocates any previous mapping for the affected region. */
+__caddr_t __mmap __P ((__caddr_t __addr, size_t __len,
+ int __prot, int __flags, int __fd, __off_t __offset));
__caddr_t mmap __P ((__caddr_t __addr, size_t __len,
int __prot, int __flags, int __fd, __off_t __offset));
/* Deallocate any mapping for the region starting at ADDR and extending LEN
bytes. Returns 0 if successful, -1 for errors (and sets errno). */
+int __munmap __P ((__caddr_t __addr, size_t __len));
int munmap __P ((__caddr_t __addr, size_t __len));
/* Change the memory protection of the region starting at ADDR and