1 /* ELF startup code for HPPA.
2 Copyright (C) 2002 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.)
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
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.
32 You should have received a copy of the GNU Lesser General Public
33 License along with the GNU C Library; if not, write to the Free
34 Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
38 .import $global$, data
39 .import __libc_start_main, code
40 .import __libc_csu_fini, code
41 .import __libc_csu_init, code
43 /* Have the linker create plabel words
44 so we get PLABEL32 relocs and not 21/14 */
50 .word P%__libc_start_main
52 .word P%__libc_csu_fini
54 .word P%__libc_csu_init
60 .type _start,@function
66 /* Expand the stack to store the 5th through 7th args */
68 /* TODO: Follow ABI? Place more things on the stack here... */
71 /* load main (1st argument) */
72 addil LR'.Lpmain, %r19
73 ldw RR'.Lpmain(%r1), %r26
75 /* argc and argv should be in 25 and 24 (2nd and 3rd argument) */
76 /* void (*init) (void) (4th argument) */
77 addil LR'.Lp__libc_csu_init, %r19
78 ldw RR'.Lp__libc_csu_init(%r1), %r23
80 /* void (*fini) (void) (5th argument) */
81 addil LR'.Lp__libc_csu_fini, %r19
82 ldw RR'.Lp__libc_csu_fini(%r1), %r22
85 /* load main (1st argument) */
87 ldw RR'.Lpmain(%r26), %r26
88 /* argc and argv should be in 25 and 24 (2nd and 3rd argument) */
89 /* void (*init) (void) (4th argument) */
90 ldil LR'.Lp__libc_csu_init, %r23
91 ldw RR'.Lp__libc_csu_init(%r23), %r23
92 /* void (*fini) (void) (5th argument) */
93 ldil LR'.Lp__libc_csu_fini, %r22
94 ldw RR'.Lp__libc_csu_fini(%r22), %r22
96 /* Store 5th argument */
98 /* void (*rtld_fini) (void) (6th argument) */
100 /* void *stack_end (7th argument) */
105 ldo R%$global$(%dp), %dp
107 bl __libc_start_main,%r2
109 /* die horribly if it returned (it shouldn't) */
110 iitlbp %r0,(%sr0,%r0)
115 /* Define a symbol for the first piece of initialized data. */
121 data_start = __data_start