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authorWaldemar Brodkorb <wbx@uclibc-ng.org>2015-12-28 22:43:01 +0100
committerWaldemar Brodkorb <wbx@uclibc-ng.org>2016-01-02 16:57:03 +0100
commit82b948ef8ffd2770fb09a8640dab82f3cb2af443 (patch)
tree17380b9ddad8301a6feadc66f18986074e5e5ce8 /libc/sysdeps/linux/i960/mmap.S
parentbad1263e3316825b5ef0037ad7a897ae62a30d7e (diff)
remove deprecated architectures v850/i960
Both architectures are more or less deprecated. No Linux upstream support, no gcc support for uClinux.
Diffstat (limited to 'libc/sysdeps/linux/i960/mmap.S')
-rw-r--r--libc/sysdeps/linux/i960/mmap.S51
1 files changed, 0 insertions, 51 deletions
diff --git a/libc/sysdeps/linux/i960/mmap.S b/libc/sysdeps/linux/i960/mmap.S
deleted file mode 100644
index 63a284384..000000000
--- a/libc/sysdeps/linux/i960/mmap.S
+++ /dev/null
@@ -1,51 +0,0 @@
-#
-# __mmap.S, part of the i960 support for the uClibc library.
-#
-# Copyright (C) 2002 by Okiok Data Ltd. http://www.okiok.com/
-#
-# This program 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.
-#
-# This program 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 this program; if not, see <http://www.gnu.org/licenses/>.
-#
-# Derived from an old port of uC-libc to the i960 by Keith Adams (kma@cse.ogi.edu).
-#
-
-#include <sys/syscall.h>
-
-/* This is a plain system call. The 6 arguments are already set up correctly */
-/* void * mmap(void *start, size_t length, int prot , int flags, int fd, off_t offset) */
-
-
- .globl _mmap
-_mmap:
- mov g13, r3
- ldconst __NR_mmap, g13
- calls 0
- mov r3, g13
-
- /* We now need to check if the return value is a small negative integer. */
- /* This is somewhat tricky as the return code (normally an address) is an */
- /* unsigned type, or an ordinal in i960 assembler. */
- /* We'll use the fact that, integers from -256 to -1 are ordinals 0xFFFFFF00 to 0xFFFFFFFF. */
- /* So by checking that the return address is in the top range of the ordinals, we'll */
- /* in fact be checking if it's not an encoded negated erro code. */
-
- /* The range -256 to -1 should be enough since that in uClinux 2.0.39, there are */
- /* 124 system calls for the i960. */
-
- ldconst 0xFFFFFF00, r3 /* This is the integer's -256 representation */
- cmpobl g0, r3, 1f /* Something smaller than this means it's out of the range, and a valid address */
- subi g0, 0, r3 /* If it's an errno, save its negated (now positive) value in _errno. */
- st r3, _errno
- subi 1, 0, g0 /* And return -1. */
-1:
- ret