OpenCores
URL https://opencores.org/ocsvn/openrisc_me/openrisc_me/trunk

Subversion Repositories openrisc_me

[/] [openrisc/] [trunk/] [gnu-src/] [gcc-4.5.1/] [gcc/] [config/] [mips/] [irix-crti.asm] - Blame information for rev 298

Go to most recent revision | Details | Compare with Previous | View Log

Line No. Rev Author Line
1 282 jeremybenn
/* Copyright (C) 2004, 2008 Free Software Foundation, Inc.
2
 
3
This file is part of GCC.
4
 
5
GCC is free software; you can redistribute it and/or modify it under
6
the terms of the GNU General Public License as published by the Free
7
Software Foundation; either version 3, or (at your option) any later
8
version.
9
 
10
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
11
WARRANTY; without even the implied warranty of MERCHANTABILITY or
12
FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
13
for more details.
14
 
15
Under Section 7 of GPL version 3, you are granted additional
16
permissions described in the GCC Runtime Library Exception, version
17
3.1, as published by the Free Software Foundation.
18
 
19
You should have received a copy of the GNU General Public License and
20
a copy of the GCC Runtime Library Exception along with this program;
21
see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
22
.  */
23
 
24
        .abicalls
25
        .set    noreorder
26
        .set    nomacro
27
 
28
/* The GNU and SGI linkers differ in their implementation of -init and -fini.
29
   With the GNU linker, there can only be a single -init option, and the
30
   linker simply sets DT_INIT to that value.  gcc's initialization and
31
   finalization code can go directly in .init, with the prologue and
32
   epilogue of the main initialization routine being provided by external
33
   object files (*crti.o and *crtn.o in this case).
34
 
35
   The SGI linker instead accepts several -init options.  It will set DT_INIT
36
   to a linker-created function (placed in .init) that calls each of the -init
37
   functions in turn.  If there is any user code in .init, this linker-created
38
   function will be placed after it.  Note that such user code is not treated
39
   specially; it will only be called if the -init options arrange for it to
40
   be called.
41
 
42
   In theory, the SGI model should allow the crti, crtn and intermediate code
43
   to go in .init, just like it can with the GNU linker.  However, doing this
44
   seems to confuse the linker and triggers an internal error:
45
 
46
      ld32: FATAL   2  : Internal: at ../../ld/mips_code.c mips_code_fixup()
47
         text section overflow!
48
 
49
   (seen with MIPSpro 7.30).  We therefore put everything in a special
50
   .gcc_init section instead.  */
51
 
52
        .section .gcc_init,"ax",@progbits
53
        .globl  __gcc_init
54
__gcc_init:
55
#if _MIPS_SIM == _ABIO32
56
        addiu   $sp,$sp,-16
57
        sw      $31,0($sp)
58
#else
59
        daddiu  $sp,$sp,-16
60
        sd      $31,0($sp)
61
        sd      $28,8($sp)
62
#endif
63
 
64
        .section .gcc_fini,"ax",@progbits
65
        .globl  __gcc_fini
66
__gcc_fini:
67
#if _MIPS_SIM == _ABIO32
68
        addiu   $sp,$sp,-16
69
        sw      $31,0($sp)
70
#else
71
        daddiu  $sp,$sp,-16
72
        sd      $31,0($sp)
73
        sd      $28,8($sp)
74
#endif
75
 
76
/* This object will typically be included in the final link for both
77
   shared libraries and executable, and we need to hide the symbols to
78
   prevent possible symbol preemption warnings from the SGI linker.  */
79
.hidden __gcc_init
80
.hidden __gcc_fini
81
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.