source: mainline/uspace/lib/c/arch/ia64/src/thread_entry.S@ 241ab7e

serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 241ab7e was a949f4a, checked in by Jiri Svoboda <jiri@…>, 6 years ago

Dynamic linking on IA-64 (WIP)

  • 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 <abi/asmtool.h>
30
31.text
32
33## User-space thread entry point for all but the first threads.
34#
35#
36SYMBOL_BEGIN(__thread_entry)
37 alloc loc0 = ar.pfs, 0, 1, 1, 0
38
39#ifndef CONFIG_RTLD
40 # XXX This does not work in a shared library
41 movl gp = __gp
42#endif
43
44 #
45 # r8 contains address of uarg structure.
46 #
47
48 mov out0 = r8 ;;
49 # XXX br.call.sptk.many b0 = FUNCTION_REF(__thread_main)
50 br.call.sptk.many b0 = __thread_main
51
52 #
53 # Not reached.
54 #
55
56SYMBOL_END(__thread_entry)
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