source: rtems/c/src/lib/libbsp/m68k/idp/startup/linkcmds @ 1144653

4.104.114.84.95
Last change on this file since 1144653 was 1144653, checked in by Joel Sherrill <joel.sherrill@…>, on 05/03/07 at 20:33:33

2007-05-03 Joel Sherrill <joel@…>

  • startup/linkcmds: Handle .data.* sections
  • Property mode set to 100644
File size: 4.8 KB
Line 
1/* This file is a derivation of that found with the newlib-1.6 distribution
2 * for the idp.ld file.  That file, it appears, was originally written by
3 * Rob Savoye.  Other ideas came from Joel Sherrill for the RTEMS linkcmds
4 * file (this is basically a mixture of the two).
5 *
6 *  $Id$
7 */
8
9/*
10 * Setup the memory map of the MC68ec0x0 Board (IDP)
11 * stack grows up towards high memory. This works for
12 * both the rom68k and the mon68k monitors.
13 */
14
15MEMORY
16{
17     ram : org = 0x10000, l = 2M
18}
19
20/*
21 * Declare some sizes.
22 */
23_RamBase = DEFINED(_RamBase) ? _RamBase : 0x0;
24_RamSize = DEFINED(_RamSize) ? _RamSize : 2M;
25_HeapSize = DEFINED(_HeapSize) ? _HeapSize : 0x10000;
26_StackSize = DEFINED(_StackSize) ? _StackSize : 0x1000;
27
28SECTIONS
29{
30        ram : {
31                . = .;
32        } >ram
33
34        /*
35         * Text, data and bss segments
36         */
37        .text : {
38                *(.text*)
39
40                /*
41                 * C++ constructors/destructors
42                 */
43                *(.gnu.linkonce.t.*)
44
45                /*
46                 * Initialization and finalization code.
47                 *
48                 * Various files can provide initialization and finalization
49                 * functions.  crtbegin.o and crtend.o are two instances. The
50                 * body of these functions are in .init and .fini sections. We
51                 * accumulate the bodies here, and prepend function prologues
52                 * from crti.o and function epilogues from crtn.o. crti.o must
53                 * be linked first; crtn.o must be linked last.  Because these
54                 * are wildcards, it doesn't matter if the user does not
55                 * actually link against crti.o and crtn.o; the linker won't
56                 * look for a file to match a wildcard.  The wildcard also
57                 * means that it doesn't matter which directory crti.o and
58                 * crtn.o are in.
59                 */
60                PROVIDE (_init = .);
61                *crti.o(.init)
62                *(.init)
63                *crtn.o(.init)
64                PROVIDE (_fini = .);
65                *crti.o(.fini)
66                *(.fini)
67                *crtn.o(.fini)
68
69                /*
70                 * Special FreeBSD sysctl sections.
71                 */
72                . = ALIGN (16);
73                __start_set_sysctl_set = .;
74                *(set_sysctl_*);
75                __stop_set_sysctl_set = ABSOLUTE(.);
76                *(set_domain_*);
77                *(set_pseudo_*);
78
79                /*
80                 * C++ constructors/destructors
81                 *
82                 * gcc uses crtbegin.o to find the start of the constructors
83                 * and destructors so we make sure it is first.  Because this
84                 * is a wildcard, it doesn't matter if the user does not
85                 * actually link against crtbegin.o; the linker won't look for
86                 * a file to match a wildcard.  The wildcard also means that
87                 * it doesn't matter which directory crtbegin.o is in. The
88                 * constructor and destructor list are terminated in
89                 * crtend.o.  The same comments apply to it.
90                 */
91                . = ALIGN (16);
92                *crtbegin.o(.ctors)
93                *(.ctors)
94                *crtend.o(.ctors)
95                *crtbegin.o(.dtors)
96                *(.dtors)
97                *crtend.o(.dtors)
98
99                /*
100                 * Exception frame info
101                 */
102                . = ALIGN (16);
103                *(.eh_frame)
104
105                /*
106                 * Read-only data
107                 */
108                . = ALIGN (16);
109                _rodata_start = .;
110                *(.rodata*)
111                *(.gnu.linkonce.r*)
112
113                 . = ALIGN (16);
114                PROVIDE (_etext = .);
115        } >ram
116        .data : {
117                PROVIDE (_copy_start = .);
118                *(.data*)
119                *(.gnu.linkonce.d*)
120                *(.gcc_except_table)
121                *(.jcr)
122                . = ALIGN (16);
123                PROVIDE (_edata = .);
124                PROVIDE (_copy_end = .);
125        } >ram
126        .bss : {
127                _clear_start = .;
128                *(.dynbss)
129                *(.bss* .gnu.linkonce.b.*)
130                *(COMMON)
131                . = ALIGN (16);
132                PROVIDE (end = .);
133
134                . += _StackSize;
135                . = ALIGN (16);
136                _stack_init = .;
137                _clear_end = .;
138
139                _WorkspaceBase = .;
140        } >ram
141
142  /* Stabs debugging sections.  */
143  .stab 0 : { *(.stab) }
144  .stabstr 0 : { *(.stabstr) }
145  .stab.excl 0 : { *(.stab.excl) }
146  .stab.exclstr 0 : { *(.stab.exclstr) }
147  .stab.index 0 : { *(.stab.index) }
148  .stab.indexstr 0 : { *(.stab.indexstr) }
149  .comment 0 : { *(.comment) }
150
151  /* DWARF debug sections.
152     Symbols in the DWARF debugging sections are relative to the beginning
153     of the section so we begin them at 0.  */
154  /* DWARF 1 */
155  .debug          0 : { *(.debug) }
156  .line           0 : { *(.line) }
157 
158  /* GNU DWARF 1 extensions */
159  .debug_srcinfo  0 : { *(.debug_srcinfo) }
160  .debug_sfnames  0 : { *(.debug_sfnames) }
161 
162  /* DWARF 1.1 and DWARF 2 */
163  .debug_aranges  0 : { *(.debug_aranges) }
164  .debug_pubnames 0 : { *(.debug_pubnames) }
165 
166  /* DWARF 2 */
167  .debug_info     0 : { *(.debug_info) }
168  .debug_abbrev   0 : { *(.debug_abbrev) }
169  .debug_line     0 : { *(.debug_line) }
170  .debug_frame    0 : { *(.debug_frame) }
171  .debug_str      0 : { *(.debug_str) }
172  .debug_loc      0 : { *(.debug_loc) }
173  .debug_macinfo  0 : { *(.debug_macinfo) }
174 
175  /* SGI/MIPS DWARF 2 extensions */
176  .debug_weaknames 0 : { *(.debug_weaknames) }
177  .debug_funcnames 0 : { *(.debug_funcnames) }
178  .debug_typenames 0 : { *(.debug_typenames) }
179  .debug_varnames  0 : { *(.debug_varnames) }
180  /* These must appear regardless of  .  */
181}
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