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authorJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
committerJoseph Myers <joseph@codesourcery.com>2012-07-01 13:08:59 +0000
commite84eabb3871c9b39e59323bf3f6b98c2ca9d1cd0 (patch)
treedff3f1b79454b518d15a7b9bbedeb57ff156bbe8 /ports/sysdeps/unix/sysv/linux/m68k/mmap.S
parent75f0d3040a2c2de8842bfa7a09e11da1a73e17d0 (diff)
parente64ac02c24b43659048622714afdc92fedf561fa (diff)
Merge glibc-ports into ports/ directory.glibc-2.16-ports-merge
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/m68k/mmap.S')
-rw-r--r--ports/sysdeps/unix/sysv/linux/m68k/mmap.S42
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)