diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/m68k/mmap.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/m68k/mmap.S | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/m68k/mmap.S b/ports/sysdeps/unix/sysv/linux/m68k/mmap.S new file mode 100644 index 0000000000..b0d9714228 --- /dev/null +++ b/ports/sysdeps/unix/sysv/linux/m68k/mmap.S @@ -0,0 +1,42 @@ +/* Copyright (C) 1996, 1997, 1998 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> + + .text +ENTRY (__mmap) + + move.l #SYS_ify (mmap), %d0 /* System call number in %d0. */ + + lea 4(%sp), %a0 /* Address of args is 1st arg. */ + move.l %a0, %d1 + + /* Do the system call trap. */ + trap #0 + + /* Kludge: negative numbers are among the legal return values. + If %d0 is between -4096 and 0 then there was an error. */ + cmp.l #-4096, %d0 + jhi SYSCALL_ERROR_LABEL + + /* Successful; return the syscall's value. Copy it to %a0 because + mmap is declared to return a pointer. */ + move.l %d0, %a0 + rts +PSEUDO_END (__mmap) + +weak_alias (__mmap, mmap) |