source: trunk/libs/newlib/src/libgloss/rs6000/sim-crt0.S @ 546

Last change on this file since 546 was 444, checked in by satin@…, 6 years ago

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

File size: 1.3 KB
Line 
1/*
2 * crt0.S -- startup file for PowerPC systems.
3 *
4 * Copyright (c) 1995 Cygnus Support
5 *
6 * The authors hereby grant permission to use, copy, modify, distribute,
7 * and license this software and its documentation for any purpose, provided
8 * that existing copyright notices are retained in all copies and that this
9 * notice is included verbatim in any distributions. No written agreement,
10 * license, or royalty fee is required for any of the authorized uses.
11 * Modifications to this software may be copyrighted by their authors
12 * and need not follow the licensing terms described here, provided that
13 * the new terms are clearly indicated on the first page of each file where
14 * they apply.
15 */
16
17#include "ppc-asm.h"
18
19        .file   "sim-crt0.S"
20        .text
21        .globl  _start
22        .type   _start,@function
23_start:
24        lis     r0,0
25        stw     r0,0(sp)        /* clear back chain */
26        stwu    sp,-64(sp)      /* push another stack frame */
27
28        /* Let her rip */
29        bl      FUNC_NAME(main)
30
31        /* return value from main is argument to exit */
32        bl      FUNC_NAME(exit)
33.Lstart:
34        .size   _start,.Lstart-_start
35
36        .extern FUNC_NAME(atexit)
37        .globl  FUNC_NAME(__atexit)
38        .section ".sdata","aw"
39        .align  2
40FUNC_NAME(__atexit):                    /* tell C's eabi-ctor's we have an atexit function */
41        .long   FUNC_NAME(atexit)@fixup /* and that it is to register __do_global_dtors */
42
43        .section ".fixup","aw"
44        .align  2
45        .long   FUNC_NAME(__atexit)
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