source: rtems/c/src/lib/libbsp/m68k/mvme147s/startup/linkcmds @ 9b2c969

4.104.114.84.95
Last change on this file since 9b2c969 was 9b2c969, checked in by Joel Sherrill <joel.sherrill@…>, on 01/13/00 at 15:07:03

Made sweep of changes to get all BSPs to the same point on the linkcmds
and memory layout. Next step is to share the same bsp_pretasking_hook.
  • Property mode set to 100644
File size: 3.4 KB
Line 
1/*
2 *  This file contains directives for the GNU linker which are specific
3 *  to the Motorola MVME147 boards.
4 *
5 *  COPYRIGHT (c) 1989-1999.
6 *  On-Line Applications Research Corporation (OAR).
7 *
8 *  The license and distribution terms for this file may be
9 *  found in the file LICENSE in this distribution or at
10 *  http://www.OARcorp.com/rtems/license.html.
11 *
12 *  MVME147 port for TNI - Telecom Bretagne
13 *  by Dominique LE CAMPION (Dominique.LECAMPION@enst-bretagne.fr)
14 *  May 1996
15 *
16 *  $Id$
17 */
18
19/*
20 * Declare some sizes.
21 */
22HeapSize = DEFINED(HeapSize) ? HeapSize : 0x10000;
23StackSize = DEFINED(StackSize) ? StackSize : 0x1000;
24
25MEMORY
26{
27        ram : org = 0x0, l = 0x400000
28}
29
30SECTIONS
31{
32        ram : {
33                . = 0x7000;
34        } >ram
35
36        /*
37         * Text, data and bss segments
38         */
39        .text : {
40                *(.text)
41
42                /*
43                 * C++ constructors/destructors
44                 */
45                *(.gnu.linkonce.t.*)
46
47                /*
48                 * Initialization and finalization code.
49                 *
50                 * Various files can provide initialization and finalization
51                 * functions.  crtbegin.o and crtend.o are two instances. The
52                 * body of these functions are in .init and .fini sections. We
53                 * accumulate the bodies here, and prepend function prologues
54                 * from crti.o and function epilogues from crtn.o. crti.o must
55                 * be linked first; crtn.o must be linked last.  Because these
56                 * are wildcards, it doesn't matter if the user does not
57                 * actually link against crti.o and crtn.o; the linker won't
58                 * look for a file to match a wildcard.  The wildcard also
59                 * means that it doesn't matter which directory crti.o and
60                 * crtn.o are in.
61                 */
62                PROVIDE (_init = .);
63                *crti.o(.init)
64                *(.init)
65                *crtn.o(.init)
66                PROVIDE (_fini = .);
67                *crti.o(.fini)
68                *(.fini)
69                *crtn.o(.fini)
70
71                /*
72                 * C++ constructors/destructors
73                 *
74                 * gcc uses crtbegin.o to find the start of the constructors
75                 * and destructors so we make sure it is first.  Because this
76                 * is a wildcard, it doesn't matter if the user does not
77                 * actually link against crtbegin.o; the linker won't look for
78                 * a file to match a wildcard.  The wildcard also means that
79                 * it doesn't matter which directory crtbegin.o is in. The
80                 * constructor and destructor list are terminated in
81                 * crtend.o.  The same comments apply to it.
82                 */
83                . = ALIGN (16);
84                *crtbegin.o(.ctors)
85                *(.ctors)
86                *crtend.o(.ctors)
87                *crtbegin.o(.dtors)
88                *(.dtors)
89                *crtend.o(.dtors)
90
91                /*
92                 * Exception frame info
93                 */
94                . = ALIGN (16);
95                *(.eh_frame)
96
97                /*
98                 * Read-only data
99                 */
100                . = ALIGN (16);
101                _rodata_start = . ;
102                *(.rodata)
103                *(.gnu.linkonce.r*)
104
105                 . = ALIGN (16);
106                PROVIDE (_etext = .);
107        } >ram
108        .data : {
109                PROVIDE (_copy_start = .);
110                *(.data)
111                *(.gnu.linkonce.d*)
112                *(.gcc_except_table)
113                . = ALIGN (16);
114                PROVIDE (_edata = .);
115                PROVIDE (_copy_end = .);
116        } >ram
117        .bss : {
118                PROVIDE (_bss_start = .);
119                PROVIDE (_clear_start = .);
120                *(.bss)
121                *(COMMON)
122                . = ALIGN (16);
123                PROVIDE (end = .);
124
125                . += StackSize;
126                PROVIDE (_stack_init = .);
127
128                . = ALIGN (16);
129                PROVIDE (_HeapStart = .);
130                . += HeapSize;
131                PROVIDE (_HeapEnd = .);
132
133                PROVIDE (_clear_end = .);
134
135                PROVIDE (_WorkspaceBase = .);
136        } >ram
137}
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