source: mainline/uspace/lib/libc/arch/mips32/src/entry.s@ 8ccd2ea

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 8ccd2ea was 00acd66, checked in by Jakub Jermar <jakub@…>, 18 years ago

New, better-structured, directory layout for uspace.

  • Property mode set to 100644
File size: 2.3 KB
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[c2a864b]1#
[df4ed85]2# Copyright (c) 2005 Martin Decky
[c2a864b]3# All rights reserved.
4#
5# Redistribution and use in source and binary forms, with or without
6# modification, are permitted provided that the following conditions
7# are met:
8#
9# - Redistributions of source code must retain the above copyright
10# notice, this list of conditions and the following disclaimer.
11# - Redistributions in binary form must reproduce the above copyright
12# notice, this list of conditions and the following disclaimer in the
13# documentation and/or other materials provided with the distribution.
14# - The name of the author may not be used to endorse or promote products
15# derived from this software without specific prior written permission.
16#
17# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27#
28
29.text
[8f9239e]30.section .init, "ax"
[25f9823]31.global __entry
32.global __entry_driver
[a71d9af9]33.set noreorder
34.option pic2
[c2a864b]35
36## User-space task entry point
37#
38#
[25f9823]39.ent __entry
40__entry:
[a71d9af9]41 .frame $sp, 32, $31
42 .cpload $25
43
[29a9f62]44
[a71d9af9]45 # Mips o32 may store its arguments on stack, make space (16 bytes),
[29a9f62]46 # so that it could work with -O0
[a71d9af9]47 # Make space additional 16 bytes for the stack frame
48
49 addiu $sp, -32
50 .cprestore 16 # Allow PIC code
[29a9f62]51
52 jal __main
[a71d9af9]53 nop
[29a9f62]54
[25f9823]55 jal __io_init
56 nop
57
[c2a864b]58 jal main
[a71d9af9]59 nop
[c2a864b]60
61 jal __exit
[a71d9af9]62 nop
[07d7870]63.end
[25f9823]64
65.ent __entry_driver
66__entry_driver:
67 .frame $sp, 32, $31
68 .cpload $25
69
[c2a864b]70
[25f9823]71 # Mips o32 may store its arguments on stack, make space (16 bytes),
72 # so that it could work with -O0
73 # Make space additional 16 bytes for the stack frame
74
75 addiu $sp, -32
76 .cprestore 16 # Allow PIC code
77
78 jal __main
79 nop
80
81 jal main
82 nop
83
84 jal __exit
85 nop
[07d7870]86.end
[a71d9af9]87# Alignment of output section data to 0x4000
88.section .data
89.align 14
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