source: rtems/c/src/lib/libbsp/i960/rxgen960/startup/dram.ld @ 3299388d

4.104.114.84.95
Last change on this file since 3299388d was 2ea8df3, checked in by Joel Sherrill <joel.sherrill@…>, on 10/27/99 at 16:27:34

Added CVS Ids and a basic header. More header cleanup needed.
  • Property mode set to 100644
File size: 3.7 KB
Line 
1/*------------------------------------*/
2/* rom.ld                             */
3/* Last change : 19. 4.95             */
4/*------------------------------------*
5 * To build ROM based i960 image.
6 *------------------------------------*/
7/*
8 *  $Id$
9 */
10
11
12
13MEMORY
14{
15  dram   : org = 0xa2000000, len = 120K
16}
17
18
19_bootAddr = 0xa0200000;
20_HEAP = 0xA0100000 ;
21
22SECTIONS
23{
24    /* Only monitor start point and fault handler
25     * will live in ROM as far as text is concerned.
26     * Only fault table will live in ROM as far as data
27     * is concerned. 
28     */
29  romCode :
30    {
31        /* Make sure that the monitor start point
32         * is the first location in EPROM.
33         */
34      rommon.o960(.text)
35        /* Procedures to copy code and
36         * initialize bss in RAM.
37         */
38      sctns.o960(.text)   
39        /* Make Sure Fault Table (and its handler's data)
40         * live here so that they wouldn't get destroyed).
41         */
42      asmfault.o960   
43      flttbl.o960
44        /* 16 byte aligned PRCB.
45         */
46      . = ALIGN(16);
47      rom_prcb.o960(.data)
48        /* 16 byte aligned Control Table.
49         */
50      . = ALIGN(16);
51      rom_cntrltbl.o960(.data)       
52      . = ALIGN(16);
53        intrtbl.o960(.data)
54      . = ALIGN(16);
55        nulsystbl.o960(.data)
56      . = ALIGN(16);
57        /* I need this symbol to know where code which is
58         * to be copied reside in ROM. Align it on a 16
59         * boundary.
60         */       
61      . = ALIGN(16); 
62      _codeRomStart = .;   
63    } > dram
64   
65    /* All the rest of the code will live in RAM.
66     * Relocation are created as though code resides
67     * in RAM, while code is placed right after romCode.
68     * This is responsiblity of the ROM monitor to
69     * copy code into ROM.
70     */   
71  ramCode : AT(ADDR(romCode) + SIZEOF(romCode))
72    {
73        /* RAM-based code section start.
74         * I need this symbol to know where to copy code
75         * at initialization time .
76         */
77      _codeRamStart = .;
78        /* RAM based fault recovery stuff.
79         */
80      _faultStart = .;
81      fault.o960
82      _faultEnd = .;
83        /* Check sum to gurantee that
84         * the above section wasn't broken.
85         */
86      . = ALIGN(16);
87      _faultCheckSum = .;
88      . += 4;
89        /* Fault Buffer to keep the state of
90         * the fauled procedure.
91         */
92      _faultBuffer = .;
93      . += 256;   
94        /* All the rest of the text goes here.
95         */
96      . = ALIGN(16);   
97      *(.text)
98        /* 16 byte aligned PRCB.
99         */
100      . = ALIGN(16);
101      prcb.o960(.data)
102        /* 16 byte aligned Control Table.
103         */
104      . = ALIGN(16);
105      cntrltbl.o960(.data)                 
106      . = ALIGN(16);
107        systbl.o960(.data)
108        /* All the rest of program defined data goes here.
109         */
110      *(.data)
111        /* RAM-based code section end.
112         * I need this symbol to know where to copy code
113         * at initialization time .
114         */   
115      _codeRamEnd = .;
116    } > sram
117 
118    /* RAM based uninitialized data.
119     */   
120  bss (NOLOAD) :
121    {
122        /* BSS section start. I need this symbol to
123         * zero BSS on initialization.
124         */
125      _bssStart = .;
126        /* Supervisor Stack. Aligned on a 16 boundary.
127         */
128      . = ALIGN(16);
129      _svrStackPtr = .;
130      . += 4K;
131        /* Interrupt Stack. Aligned on a 16 boundary.
132         */
133      . = ALIGN(16);
134      _intStackPtr = .;
135      . += 4K;
136        /* Program defined BSS.
137         */
138      *(.bss)
139        /* Program defined COMMON.
140         */
141      *(COMMON)
142        /* BSS section end. I need this symbol to
143         * zero BSS on initialization.
144         */
145      _bssEnd = .;
146      _bssStart_1 = .;
147      _bssEnd_1 = .;
148    } > dram
149
150}
151
152/*-------------*/
153/* End of file */
154/*-------------*/
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