source: trunk/libs/newlib/src/libgloss/microblaze/xilinx.ld @ 543

Last change on this file since 543 was 444, checked in by satin@…, 7 years ago

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

File size: 4.2 KB
RevLine 
[444]1/* Default linker script, for normal executables */
2/*SEARCH_DIR("/proj/fv1/gnu_builds/head/mb/release/lin/mb/microblaze-xilinx-elf/lib");*/
3/*SEARCH_DIR("/proj/fv1/gnu_builds/head/mb/release/lin/mb/microblaze-xilinx-elf/lib");*/
4ENTRY(_start)
5_TEXT_START_ADDR = DEFINED(_TEXT_START_ADDR) ? _TEXT_START_ADDR : 0x50;
6_HEAP_SIZE = DEFINED(_HEAP_SIZE) ? _HEAP_SIZE : 0x0;
7_STACK_SIZE = DEFINED(_STACK_SIZE) ? _STACK_SIZE : 0x400;
8SECTIONS
9{
10  .vectors.reset 0x0 : { KEEP (*(.vectors.reset)) } = 0
11  .vectors.sw_exception 0x8 : { KEEP (*(.vectors.sw_exception)) } = 0
12  .vectors.interrupt 0x10 : { KEEP (*(.vectors.interrupt)) } = 0
13  .vectors.debug_sw_break 0x18 : { KEEP (*(.vectors.debug_sw_break)) } = 0
14  .vectors.hw_exception 0x20 : { KEEP (*(.vectors.hw_exception)) } = 0
15  . = _TEXT_START_ADDR;
16   _ftext  =  .;
17  .text : {
18    *(.text)
19    *(.text.*)
20    *(.gnu.linkonce.t.*)
21  }
22   _etext  =  .;
23  .init : { KEEP (*(.init))     } =0
24  .fini : { KEEP (*(.fini))     } =0
25  PROVIDE (__CTOR_LIST__ = .);
26  PROVIDE (___CTOR_LIST__ = .);
27  .ctors   :
28  {
29    /* gcc uses crtbegin.o to find the start of
30       the constructors, so we make sure it is
31       first.  Because this is a wildcard, it
32       doesn't matter if the user does not
33       actually link against crtbegin.o; the
34       linker won't look for a file to match a
35       wildcard.  The wildcard also means that it
36       doesn't matter which directory crtbegin.o
37       is in.  */
38    KEEP (*crtbegin.o(.ctors))
39    /* We don't want to include the .ctor section from
40       from the crtend.o file until after the sorted ctors.
41       The .ctor section from the crtend file contains the
42       end of ctors marker and it must be last */
43    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
44    KEEP (*(SORT(.ctors.*)))
45    KEEP (*(.ctors))
46  }
47  PROVIDE (__CTOR_END__ = .);
48  PROVIDE (___CTOR_END__ = .);
49  PROVIDE (__DTOR_LIST__ = .);
50  PROVIDE (___DTOR_LIST__ = .);
51   .dtors         :
52  {
53    KEEP (*crtbegin.o(.dtors))
54    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
55    KEEP (*(SORT(.dtors.*)))
56    KEEP (*(.dtors))
57  }
58  PROVIDE (__DTOR_END__ = .);
59  PROVIDE (___DTOR_END__ = .);
60   . = ALIGN(4);
61    _frodata = . ;
62  .rodata : {
63    *(.rodata)
64    *(.rodata.*)
65    *(.gnu.linkonce.r.*)
66    CONSTRUCTORS; /* Is this needed? */
67  }
68   _erodata = .;
69  /* Alignments by 8 to ensure that _SDA2_BASE_ on a word boundary */
70  /* Note that .sdata2 and .sbss2 must be contiguous */
71  . = ALIGN(8);
72   _ssrw = .;
73  .sdata2 : {
74    *(.sdata2)
75    *(.sdata2.*)
76    *(.gnu.linkonce.s2.*)
77  }
78  . = ALIGN(4);
79  .sbss2 : {
80    PROVIDE (__sbss2_start = .);
81    *(.sbss2)
82    *(.sbss2.*)
83    *(.gnu.linkonce.sb2.*)
84    PROVIDE (__sbss2_end = .);
85  }
86  . = ALIGN(8);
87   _essrw = .;
88   _ssrw_size = _essrw - _ssrw;
89   PROVIDE (_SDA2_BASE_ = _ssrw + (_ssrw_size / 2 ));
90   . = ALIGN(4);
91   _fdata = .;
92  .data : {
93    *(.data)
94    *(.gnu.linkonce.d.*)
95    CONSTRUCTORS; /* Is this needed? */
96  }
97   _edata = . ;
98   /* Added to handle pic code */
99  .got : {
100    *(.got)
101  }
102  .got1 : {
103    *(.got1)
104  }
105  .got2 : {
106    *(.got2)
107  }
108  /* Added by Sathya to handle C++ exceptions */
109  .eh_frame : {
110    *(.eh_frame)
111  }
112  .jcr : {
113    *(.jcr)
114  }
115  .gcc_except_table : {
116    *(.gcc_except_table)
117  }
118  /* Alignments by 8 to ensure that _SDA_BASE_ on a word boundary */
119  /* Note that .sdata and .sbss must be contiguous */
120  . = ALIGN(8);
121   _ssro = .;
122  .sdata : {
123    *(.sdata)
124    *(.sdata.*)
125    *(.gnu.linkonce.s.*)
126  }
127  . = ALIGN(4);
128  .sbss : {
129    PROVIDE (__sbss_start = .);
130    *(.sbss)
131    *(.sbss.*)
132    *(.gnu.linkonce.sb.*)
133    PROVIDE (__sbss_end = .);
134  }
135  . = ALIGN(8);
136   _essro = .;
137   _ssro_size = _essro - _ssro;
138  PROVIDE (_SDA_BASE_ = _ssro + (_ssro_size / 2 ));
139  . = ALIGN(4);
140   _fbss = .;
141  .bss : {
142    PROVIDE (__bss_start = .);
143    *(.bss)
144    *(.bss.*)
145    *(.gnu.linkonce.b.*)
146    *(COMMON)
147    . = ALIGN(4);
148    PROVIDE (__bss_end = .);
149  }
150
151  . = ALIGN(4);
152  .heap : {
153     _heap = .;
154     _heap_start = .;
155     . += _HEAP_SIZE;
156     _heap_end = .;
157  }
158
159  . = ALIGN(4);
160  .stack : {
161     _stack_end = .;
162     . += _STACK_SIZE;
163     . = ALIGN(8);
164     _stack = .;
165     _end = .;
166  }
167
168  .tdata : {
169    *(.tdata)
170    *(.tdata.*)
171    *(.gnu.linkonce.td.*)
172  }
173  .tbss : {
174    *(.tbss)
175    *(.tbss.*)
176    *(.gnu.linkonce.tb.*)
177  }
178}
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