source: mainline/uspace/lib/c/arch/mips32/src/thread_entry.S@ a52e2f4

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since a52e2f4 was 6d123b3, checked in by Martin Decky <martin@…>, 13 years ago

respect the o32 ABI when calling C functions from assembler and creating contexts
(thx Adam Hraska)

  • Property mode set to 100644
File size: 1.9 KB
Line 
1#
2# Copyright (c) 2006 Jakub Jermar
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#include <libarch/stack.h>
30
31.text
32
33.set noat
34.set noreorder
35.option pic2
36
37.globl __thread_entry
38
39## User-space thread entry point for all but the first threads.
40#
41#
42.ent __thread_entry
43__thread_entry:
44 .frame $sp, ABI_STACK_FRAME, $ra
45 .cpload $t9
46
47 #
48 # v0 contains address of uarg.
49 #
50 add $a0, $v0, 0
51
52 # Allocate the stack frame.
53 addiu $sp, -ABI_STACK_FRAME
54
55 # Allow PIC code
56 .cprestore 16
57
58 jal __thread_main
59 nop
60
61 #
62 # Not reached.
63 #
64 addiu $sp, ABI_STACK_FRAME
65.end __thread_entry
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