source: mainline/uspace/lib/c/arch/ia64/src/entry.s@ 89c57b6

lfn serial ticket/834-toolchain-update topic/msim-upgrade topic/simplify-dev-export
Last change on this file since 89c57b6 was 47b7006, checked in by Martin Decky <martin@…>, 15 years ago

improve run-time termination

  • get rid of exit()
  • get rid of _exit(), use the common exit()
  • get rid of core(), use the common abort()
  • make main() more fail-safe (call abort() on unhealthy conditions), call async_sess_init() explicitly
  • add several libc-private headers for cleaner environment
  • use SYS_TASK_EXIT in exit() and abort()
  • Property mode set to 100644
File size: 1.7 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.section .init, "ax"
30
31.org 0
32
33.globl __entry
34
35## User-space task entry point
36#
37# r2 contains the PCB pointer
38#
39__entry:
40 alloc loc0 = ar.pfs, 0, 1, 2, 0
41 movl gp = _gp
42
43 # Pass PCB pointer as the first argument to __main
44 mov out0 = r2
45 br.call.sptk.many b0 = __main
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