source: trunk/libs/newlib/src/libgloss/sparc/erc32.ld @ 621

Last change on this file since 621 was 444, checked in by satin@…, 7 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc

File size: 3.2 KB
Line 
1/*
2 *uncomment this if you want the linker to output srecords.
3OUTPUT_FORMAT(srec)
4 *
5 */
6STARTUP(traps.o)
7INPUT(sim-crt0.o)
8OUTPUT_ARCH(sparc)
9SEARCH_DIR(.)
10__DYNAMIC  =  0;
11GROUP(-lc -lsim -lgcc)
12
13/*
14 * The memory map looks like this:
15 * +--------------------+ <- low memory
16 * | .text              |
17 * |        _stext       |
18 * |        _etext      |
19 * |        ctor list   | the ctor and dtor lists are for
20 * |        dtor list   | C++ support
21 * |        _end_text   |
22 * +--------------------+
23 * | .data              | initialized data goes here
24 * |        _sdata      |
25 * |        _edata      |
26 * +--------------------+
27 * | .bss               |
28 * |        __bss_start | start of bss, cleared by crt0
29 * |        _end        | start of heap, used by sbrk()
30 * +--------------------+
31 * |    heap space      |
32 * |        _ENDHEAP    |
33 * |    stack space     |
34 * |        __stack     | top of stack
35 * +--------------------+ <- high memory
36 */
37
38/*
39 * User modifiable values:
40 *
41 * _CLOCK_SPEED               in Mhz (used to program the counter/timers)
42 *
43 * _PROM_SIZE                 size of PROM (permissible values are 4K, 8K, 16K
44 *                               32K, 64K, 128K, 256K, and 512K)
45 * _RAM_SIZE                  size of RAM (permissible values are 256K, 512K,
46 *                               1MB, 2Mb, 4Mb, 8Mb, 16Mb, and 32Mb)
47 *
48 * These symbols are only used in assembler code, so they only need to
49 * be listed once. They should always be refered to without SYM().
50 */
51
52_CLOCK_SPEED = 10;
53
54_PROM_SIZE = 4M;
55_RAM_SIZE = 2M;
56
57_RAM_START = 0x02020000;
58_RAM_END = _RAM_START + _RAM_SIZE;
59_STACK_SIZE = (16 * 1024);
60_PROM_START = 0x00000000;
61_PROM_END = _PROM_START + _PROM_SIZE;
62
63
64/*
65 *  Base address of the on-CPU peripherals
66 */
67
68_ERC32_MEC = 0x01f80000;
69
70/*
71 * Setup the memory map for the SIS simulator.
72 * stack grows up towards low memory.
73 */
74/*
75MEMORY
76{
77  rom       : ORIGIN = 0x00000000, LENGTH = 4M
78  ram (rwx) : ORIGIN = 0x02000000, LENGTH = 2M
79}
80*/
81
82__stack = _RAM_START + _RAM_SIZE - 4 * 16;
83__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
84
85/*
86 * All the symbols that might be accessed from C code need to be
87 * listed twice, once with an additional underscore. aout format needs
88 * and extra underscore, whereas coff & elf doesn't. This is to work
89 * with both.
90 */
91SECTIONS
92{
93  .text 0x02000000 :  {
94    stext = .;
95    _stext = .;
96    *(.text)
97     _etext  =  .;
98    __CTOR_LIST__ = .;
99    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
100    *(.ctors)
101    LONG(0)
102    __CTOR_END__ = .;
103    __DTOR_LIST__ = .;
104    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
105    *(.dtors)
106    LONG(0)
107    __DTOR_END__ = .;
108    *(.lit)
109    *(.shdata)
110    _endtext = .;
111  }  > ram
112  .shbss SIZEOF(.text) + ADDR(.text) :  {
113    *(.shbss)
114  }
115  .talias :      { }  > ram
116  .data : {
117    sdata  =  .;
118    _sdata  =  .;
119    *(.data)
120    edata  =  .;
121    _edata  =  .;
122  } > ram
123  .bss SIZEOF(.data) + ADDR(.data) :
124  {
125   sbss = . ;
126   _sbss = . ;
127   __bss_start = ALIGN(0x8);
128   *(.bss)
129   *(COMMON)
130   end = ALIGN(0x8);
131   _end = ALIGN(0x8);
132   __end = ALIGN(0x8);
133   ebss = .;
134   _ebss = .;
135  }
136  .mstack  : { }  > ram
137  .rstack  : { }  > ram
138  .stab  0 (NOLOAD) :
139  {
140    [ .stab ]
141  }
142  .stabstr  0 (NOLOAD) :
143  {
144    [ .stabstr ]
145  }
146}
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