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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [ts_386ex/] [startup/] [linkcmds] - Blame information for rev 173

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/*
 *  This file contains directives for the GNU linker which are specific
 *  to the Technologic Systems TS-1325 (i386ex) board.
 *
 *  Copyright (c) 1989-1998.
 *  On-Line Applications Research Corporation (OAR).
 *  Copyright assigned to U.S. Government, 1994.
 *
 *  The license and distribution terms for this file may be
 *  found in the file LICENSE in this distribution or at
 *  http://www.OARcorp.com/rtems/license.html.
 *
 *  $Id: linkcmds,v 1.2 2001-09-27 11:59:50 chris Exp $
 *
 * Memory layout:
 *
 * 0x0008000 ->    ...    : initial section ( init 386ex, goto protected mode)
 *    ...    ->    ...    : text section ( executable code )
 *    ...    -> 0x00A0000 : data section ( initialized storage )
 * 0x0100000 -> 0x0200000 : bss section, stack space, heap storage
 */
 
        ENTRY(_init_i386ex) ;
 
SECTIONS
{
 
/***************************************************************************
 * initial section:
 *
 * This subsection of ".text" is the first in memory, and executed by the DOS
 * loader. It initializes the i386ex, sets up the gdt in RAM, loads the gdt,
 * jumps to protected mode, loads the idt, zeros the bss section, sets up
 * the stack and calls the rest of the RTEMS initialization.
 ***************************************************************************/
 
        _DOS_ld_addr    =       0x0008000 ;
 
/***************************************************************************
 * text section:
 *
 * Nobody here but us opcodes.
 ***************************************************************************/
 
        .text _DOS_ld_addr :
        {
        CREATE_OBJECT_SYMBOLS
        text_start = . ;
        _text_start = . ;
 
        *(.initial);
        . = ALIGN(0x20);
 
        *(.text );
        . = ALIGN (0x20);
 
        *(.eh_frame)
        . = ALIGN (0x20);
 
        *(.gnu.linkonce.t*)
        . = ALIGN(0x20);
 
        /*
         * C++ constructors
         */
 
        __CTOR_LIST__ = .;
        LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
        *(.ctors)
        LONG(0)
        __CTOR_END__ = .;
        . = ALIGN (4) ;
        __DTOR_LIST__ = .;
        LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
        *(.dtors)
        LONG(0)
        __DTOR_END__ = .;
 
        _rodata_start = . ;
        *(.rodata)
        . = ALIGN(0x20);
        _erodata = .;
 
        *(.gnu.linkonce.r*)
        . = ALIGN(0x20);
        _endtext = . ;
        }
 
/***************************************************************************
 * ctor/dtor sections:
 *
 * These sections house the  global constructors and destructors.
 ***************************************************************************/
 
        .init BLOCK(0x20) :
        {
        *(.init)
        } = 0x9090
 
        .fini BLOCK(0x20) :
        {
        *(.fini)
        } = 0x9090
 
/***************************************************************************
 * data section:
 *
 * This section defines the location of the data section in RAM.
 ***************************************************************************/
 
        .data  BLOCK(0x20) :
        {
        _sdata = .;
        *(.data);
        . = ALIGN(0x20);
        *(.gnu.linkonce.d*)
        . = ALIGN(0x20);
        *(.gcc_except_table)
        . = ALIGN(0x20);
        _edata = .;
        }
        _data_size        = _edata - _sdata ;
 
/***************************************************************************
 * bss section:
 *
 * The bss section is the first section in extended RAM ( > 1MB).
 ***************************************************************************/
 
        .bss 0x100000 (NOLOAD) :
        {
        _bss_start = .;
        *(.bss);
        *(COMMON);
        _ebss = ALIGN(0x20);
        }
        _bss_size   = _ebss - _bss_start ;
 
/***************************************************************************
 * discard section:
 *
 * This section is used to throw away stuff we don't want.
 ***************************************************************************/
 
        /DISCARD/ :
        {
        *(.comment);
        *(.note);
        }
 
/***************************************************************************
 * General variables:
 *
 * The stack_size variable is customizable here.  The heap is located directly
 * after the stack in RAM.  A routine within bspstart.c uses these variables
 * to ensure that the heap used by RTEMS is as large as the RAM remaining
 * after all workspace configurations are complete.
 ***************************************************************************/
 
        stack_size  = 0x8000 ;
        stack_origin = _ebss + stack_size ;
        heap_bottom  = stack_origin + 4 ;
 
}

Line No.	Rev	Author	Line
1	30	unneback	`/*`
2			`* This file contains directives for the GNU linker which are specific`
3			`* to the Technologic Systems TS-1325 (i386ex) board.`
4			`*`
5			`* Copyright (c) 1989-1998.`
6			`* On-Line Applications Research Corporation (OAR).`
7			`* Copyright assigned to U.S. Government, 1994.`
8			`*`
9			`* The license and distribution terms for this file may be`
10			`* found in the file LICENSE in this distribution or at`
11			`* http://www.OARcorp.com/rtems/license.html.`
12			`*`
13			`* $Id: linkcmds,v 1.2 2001-09-27 11:59:50 chris Exp $`
14			`*`
15			`* Memory layout:`
16			`*`
17			`* 0x0008000 -> ... : initial section ( init 386ex, goto protected mode)`
18			`* ... -> ... : text section ( executable code )`
19			`* ... -> 0x00A0000 : data section ( initialized storage )`
20			`* 0x0100000 -> 0x0200000 : bss section, stack space, heap storage`
21			`*/`
22
23			`ENTRY(_init_i386ex) ;`
24
25			`SECTIONS`
26			`{`
27
28			`/***************************************************************************`
29			`* initial section:`
30			`*`
31			`* This subsection of ".text" is the first in memory, and executed by the DOS`
32			`* loader. It initializes the i386ex, sets up the gdt in RAM, loads the gdt,`
33			`* jumps to protected mode, loads the idt, zeros the bss section, sets up`
34			`* the stack and calls the rest of the RTEMS initialization.`
35			`***************************************************************************/`
36
37			`_DOS_ld_addr = 0x0008000 ;`
38
39			`/***************************************************************************`
40			`* text section:`
41			`*`
42			`* Nobody here but us opcodes.`
43			`***************************************************************************/`
44
45			`.text _DOS_ld_addr :`
46			`{`
47			`CREATE_OBJECT_SYMBOLS`
48			`text_start = . ;`
49			`_text_start = . ;`
50
51			`*(.initial);`
52			`. = ALIGN(0x20);`
53
54			`*(.text );`
55			`. = ALIGN (0x20);`
56
57			`*(.eh_frame)`
58			`. = ALIGN (0x20);`
59
60			`(.gnu.linkonce.t)`
61			`. = ALIGN(0x20);`
62
63			`/*`
64			`* C++ constructors`
65			`*/`
66
67			`__CTOR_LIST__ = .;`
68			`LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)`
69			`*(.ctors)`
70			`LONG(0)`
71			`__CTOR_END__ = .;`
72			`. = ALIGN (4) ;`
73			`__DTOR_LIST__ = .;`
74			`LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)`
75			`*(.dtors)`
76			`LONG(0)`
77			`__DTOR_END__ = .;`
78
79			`_rodata_start = . ;`
80			`*(.rodata)`
81			`. = ALIGN(0x20);`
82			`_erodata = .;`
83
84			`(.gnu.linkonce.r)`
85			`. = ALIGN(0x20);`
86			`_endtext = . ;`
87			`}`
88
89			`/***************************************************************************`
90			`* ctor/dtor sections:`
91			`*`
92			`* These sections house the global constructors and destructors.`
93			`***************************************************************************/`
94
95			`.init BLOCK(0x20) :`
96			`{`
97			`*(.init)`
98			`} = 0x9090`
99
100			`.fini BLOCK(0x20) :`
101			`{`
102			`*(.fini)`
103			`} = 0x9090`
104
105			`/***************************************************************************`
106			`* data section:`
107			`*`
108			`* This section defines the location of the data section in RAM.`
109			`***************************************************************************/`
110
111			`.data BLOCK(0x20) :`
112			`{`
113			`_sdata = .;`
114			`*(.data);`
115			`. = ALIGN(0x20);`
116			`(.gnu.linkonce.d)`
117			`. = ALIGN(0x20);`
118			`*(.gcc_except_table)`
119			`. = ALIGN(0x20);`
120			`_edata = .;`
121			`}`
122			`_data_size = _edata - _sdata ;`
123
124			`/***************************************************************************`
125			`* bss section:`
126			`*`
127			`* The bss section is the first section in extended RAM ( > 1MB).`
128			`***************************************************************************/`
129
130			`.bss 0x100000 (NOLOAD) :`
131			`{`
132			`_bss_start = .;`
133			`*(.bss);`
134			`*(COMMON);`
135			`_ebss = ALIGN(0x20);`
136			`}`
137			`_bss_size = _ebss - _bss_start ;`
138
139			`/***************************************************************************`
140			`* discard section:`
141			`*`
142			`* This section is used to throw away stuff we don't want.`
143			`***************************************************************************/`
144
145			`/DISCARD/ :`
146			`{`
147			`*(.comment);`
148			`*(.note);`
149			`}`
150
151			`/***************************************************************************`
152			`* General variables:`
153			`*`
154			`* The stack_size variable is customizable here. The heap is located directly`
155			`* after the stack in RAM. A routine within bspstart.c uses these variables`
156			`* to ensure that the heap used by RTEMS is as large as the RAM remaining`
157			`* after all workspace configurations are complete.`
158			`***************************************************************************/`
159
160			`stack_size = 0x8000 ;`
161			`stack_origin = _ebss + stack_size ;`
162			`heap_bottom = stack_origin + 4 ;`
163
164			`}`

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[/] [openrisc/] [trunk/] [rtos/] [rtems/] [c/] [src/] [lib/] [libbsp/] [i386/] [ts_386ex/] [startup/] [linkcmds] - Blame information for rev 173