source: mainline/uspace/lib/c/arch/sparc32/src/entry.S@ 1a5eca4

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 1a5eca4 was 38ad239, checked in by Jakub Jermar <jakub@…>, 9 years ago

sparc32: use asmtool.h macros for defining symbols

  • Property mode set to 100644
File size: 1.9 KB
RevLine 
[b6b02c0]1#
2# Copyright (c) 2006 Martin Decky
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
[38ad239]29#include <abi/asmtool.h>
30
[b6b02c0]31.section .init, "ax"
32
33.org 0
34
35## User-space task entry point
36#
37# %o0 contains uarg
38# %o1 contains pcb_ptr
39#
[38ad239]40SYMBOL(__entry)
[b6b02c0]41 #
42 # Create the first stack frame.
43 #
[1df1905]44
[b6b02c0]45 save %sp, -176, %sp
[1df1905]46 ## XXX flushw
[3bc42bd]47 mov 7, %g1
[1df1905]48 1:
49 subcc %g1, 1, %g1
50 bg 1b
[208b5f5]51 save %sp, -64, %sp
[1df1905]52
53 mov 7, %g1
54 1:
55 subcc %g1, 1, %g1
56 bg 1b
57 restore
58
59 ## XXX end flush
60 ## add %g0, -0x7ff, %fp
[1f12fab]61 set 0x80000000, %fp
[b6b02c0]62
63 # Pass pcb_ptr as the first argument to __main()
64 mov %i1, %o0
65 sethi %hi(_gp), %l7
66 call __main
67 or %l7, %lo(_gp), %l7
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