source: trunk/libs/newlib/src/libgloss/microblaze/sim-pgcrtinit.S @ 467

Last change on this file since 467 was 444, checked in by satin@…, 6 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 2.7 KB
Line 
1## Copyright (c) 2001, 2009 Xilinx, Inc.  All rights reserved.
2##
3## Redistribution and use in source and binary forms, with or without
4## modification, are permitted provided that the following conditions are
5## met:
6##
7## 1.  Redistributions source code must retain the above copyright notice,
8## this list of conditions and the following disclaimer.
9##
10## 2.  Redistributions in binary form must reproduce the above copyright
11## notice, this list of conditions and the following disclaimer in the
12## documentation and/or other materials provided with the distribution.
13##
14## 3.  Neither the name of Xilinx nor the names of its contributors may be
15## used to endorse or promote products derived from this software without
16## specific prior written permission.
17##
18## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDER AND CONTRIBUTORS "AS
19## IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
20## TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
21## PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22## HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
24## TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
25## PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
26## LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
27## NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
28## SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29#
30# sim-pgcrtinit.s
31#
32# Default second stage of C run-time initialization for use with software
33# intrusive profiling. Does not peform BSS initialization to zero.
34# (Typical use is on a simulator)
35#   
36
37        .globl _crtinit
38        .align 2
39        .ent _crtinit
40
41_crtinit:
42        addi    r1, r1, -20                     /* Save Link register    */
43        swi     r15, r1, 0
44
45        brlid   r15, _program_init              /* Initialize the program */
46        nop
47
48        brlid   r15, _profile_init              /* Initialize profiling library */
49        nop
50
51        brlid   r15, __init                     /* Invoke language initialization functions */
52        nop
53   
54        addi    r6, r0, 0                       /* Initialize argc = 1 and argv = NULL and envp = NULL  */
55        addi    r7, r0, 0                       
56        brlid   r15, main                       /* Execute the program */
57        addi    r5, r0, 0                       
58
59        brlid   r15, __fini                     /* Invoke language cleanup functions */
60        nop
61
62        brlid   r15, _profile_clean             /* Cleanup profiling library */
63        nop
64   
65        brlid   r15, _program_clean             /* Cleanup the program */
66        nop
67
68        lw      r15, r1, r0                     /* Return back to CRT */
69        rtsd    r15, 8
70        addi    r1, r1, 20
71        .end _crtinit
72
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