1 | /* Copyright (C) 1995-2022 Free Software Foundation, Inc. |
2 | |
3 | This file is part of the GNU C Library. |
4 | |
5 | The GNU C Library is free software; you can redistribute it and/or |
6 | modify it under the terms of the GNU Lesser General Public |
7 | License as published by the Free Software Foundation; either |
8 | version 2.1 of the License, or (at your option) any later version. |
9 | |
10 | In addition to the permissions in the GNU Lesser General Public |
11 | License, the Free Software Foundation gives you unlimited |
12 | permission to link the compiled version of this file with other |
13 | programs, and to distribute those programs without any restriction |
14 | coming from the use of this file. (The GNU Lesser General Public |
15 | License restrictions do apply in other respects; for example, they |
16 | cover modification of the file, and distribution when not linked |
17 | into another program.) |
18 | |
19 | Note that people who make modified versions of this file are not |
20 | obligated to grant this special exception for their modified |
21 | versions; it is their choice whether to do so. The GNU Lesser |
22 | General Public License gives permission to release a modified |
23 | version without this exception; this exception also makes it |
24 | possible to release a modified version which carries forward this |
25 | exception. |
26 | |
27 | The GNU C Library is distributed in the hope that it will be useful, |
28 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
29 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
30 | Lesser General Public License for more details. |
31 | |
32 | You should have received a copy of the GNU Lesser General Public |
33 | License along with the GNU C Library. If not, see |
34 | <https://www.gnu.org/licenses/>. */ |
35 | |
36 | .text |
37 | .globl _start |
38 | .type _start,@function |
39 | _start: |
40 | /* On entry the stack contains the following args: |
41 | r1+0 - argc |
42 | r1+4 - argv[0] |
43 | ... |
44 | r1+4*(argc-1) - argv[argc-1] |
45 | r1+4*argc - NULL |
46 | r1+4*argc + 4 - envp[0] |
47 | ... |
48 | NULL |
49 | */ |
50 | addk r3,r0,r0 |
51 | addk r5,r1,r0 |
52 | 1: |
53 | addik r5,r5,4 |
54 | lw r4,r5,r0 |
55 | bneid r4,1b |
56 | addik r3,r3,1 |
57 | addik r6,r3,-1 |
58 | sw r6,r1,r0 |
59 | addik r7,r1,4 |
60 | addik r1,r1,-24 |
61 | #ifdef SHARED |
62 | /* Setup PIC. */ |
63 | mfs r20,rpc |
64 | addik r20,r20,_GLOBAL_OFFSET_TABLE_+8 |
65 | lwi r5,r20,main@GOT |
66 | addk r8,r0,r0 /* Used to be init. */ |
67 | addk r9,r0,r0 /* Used to be fini. */ |
68 | brid __libc_start_main@PLT |
69 | addk r10,r0,r0 |
70 | #else |
71 | addik r5,r0,main |
72 | addk r8,r0,r0 /* Used to be init. */ |
73 | addk r9,r0,r0 /* Used to be fini. */ |
74 | brid __libc_start_main |
75 | addk r10,r0,r0 |
76 | #endif |
77 | |
78 | /* Define a symbol for the first piece of initialized data. */ |
79 | .data |
80 | .globl __data_start |
81 | __data_start: |
82 | .long 0 |
83 | .weak data_start |
84 | data_start = __data_start |
85 | |