projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| 46d7de19 RM |
1 | /* Copyright (C) 1996 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. | |
| 3 | ||
| 4 | The GNU C Library is free software; you can redistribute it and/or | |
| 5 | modify it under the terms of the GNU Library General Public License as | |
| 6 | published by the Free Software Foundation; either version 2 of the | |
| 7 | License, or (at your option) any later version. | |
| 8 | ||
| 9 | The GNU C Library is distributed in the hope that it will be useful, | |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
| 12 | Library General Public License for more details. | |
| 13 | ||
| 14 | You should have received a copy of the GNU Library General Public | |
| 15 | License along with the GNU C Library; see the file COPYING.LIB. If | |
| 16 | not, write to the Free Software Foundation, Inc., 675 Mass Ave, | |
| 17 | Cambridge, MA 02139, USA. */ | |
| 18 | ||
| 19 | #include <sysdep.h> | |
| 20 | ||
| 21 | .text | |
| 46d7de19 RM |
22 | ENTRY (__mmap) |
| 23 | ||
| 24 | move.l #SYS_ify (mmap), %d0 /* System call number in %d0. */ | |
| 25 | ||
| 26 | lea 4(%sp), %a0 /* Address of args is 1st arg. */ | |
| 27 | move.l %a0, %d1 | |
| 28 | ||
| 29 | /* Do the system call trap. */ | |
| 30 | trap #0 | |
| 31 | ||
| 32 | /* Kludge: negative numbers are among the legal return values. | |
| 33 | If %d0 is between -4096 and 0 then there was an error. */ | |
| 34 | cmp.l #-4096, %d0 | |
| 35 | jhi syscall_error | |
| 36 | ||
| 37 | /* Successful; return the syscall's value. Copy it to %a0 because | |
| 38 | mmap is declared to return a pointer. */ | |
| 39 | move.l %d0, %a0 | |
| 40 | rts | |
| 0d204b0a | 41 | PSEUDO_END (__mmap) |
| 46d7de19 RM |
42 | |
| 43 | weak_alias (__mmap, mmap) |