summaryrefslogtreecommitdiff
path: root/arch/arm/lpc17xx/ldscript
blob: 2468d126f2f88206a68a036040d099ebea7072c2 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
/* Linker script for Cortex-M3
 *
 * Version:CodeSourcery Sourcery G++ Lite 2007q3-53
 * BugURL:https://support.codesourcery.com/GNUToolchain/
 *
 *  Copyright 2007 CodeSourcery.
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply. */

OUTPUT_FORMAT ("elf32-littlearm", "elf32-bigarm", "elf32-littlearm")
/*ENTRY(_start)*/
SEARCH_DIR(.)
GROUP(-lgcc -lc)

MEMORY
{
  rom (rx)  : ORIGIN = 0x00000000, LENGTH = 512K
  ram (rwx) : ORIGIN = 0x10000000, LENGTH =  32K
  
  ram1(rwx) : ORIGIN = 0x2007C000, LENGTH = 16k
  ram2(rwx) : ORIGIN = 0x20080000, LENGTH = 16k
  ram3(rwx) : ORIGIN = 0x40038000, LENGTH = 2k
}

/* These force the linker to search for particular symbols from
 * the start of the link process and thus ensure the user's
 * overrides are picked up
 */
EXTERN(__cs3_reset_cortex_m)
EXTERN(__cs3_interrupt_vector_cortex_m)
EXTERN(__cs3_interrupt_vector_cortex_m_mutable)
EXTERN(__cs3_start_c main __cs3_stack __cs3_stack_size __cs3_heap_end)

PROVIDE(__cs3_stack = __cs3_region_start_ram + __cs3_region_size_ram);
PROVIDE(__cs3_stack_size = __cs3_region_start_ram + __cs3_region_size_ram - _end);
PROVIDE(__cs3_heap_start = _end);
PROVIDE(__cs3_heap_end = __cs3_region_start_ram + __cs3_region_size_ram);

PROVIDE(__rom_data_len = __rom_data_end - __rom_data_begin);

PROVIDE(__heap_start = __cs3_heap_start);
PROVIDE(__heap_end = __cs3_heap_end);

PROVIDE(__bss_ram_len = __bss_ram_end - __bss_ram_begin);

SECTIONS
{
  .text :
  {
    . = ALIGN(32);
    CREATE_OBJECT_SYMBOLS
    __cs3_region_start_rom = .;
    __privileged_code_start__ = . ;
    
    *(.cs3.region-head.rom)
    __cs3_interrupt_vector = __cs3_interrupt_vector_cortex_m;
    *(.cs3.interrupt_vector)
    /* Make sure we pulled in an interrupt vector.  */
    ASSERT (. != __cs3_interrupt_vector_cortex_m, "No interrupt vector");
    *(.rom)
    *(.rom.b)

    *( .privileged_code )
    *( privileged_functions )
    
    __privileged_code_end___len = . - __privileged_code_start__ - 1 ;
    __privileged_code_end___len |= __privileged_code_end___len >> 1 ;
    __privileged_code_end___len |= __privileged_code_end___len >> 2 ;
    __privileged_code_end___len |= __privileged_code_end___len >> 4 ;
    __privileged_code_end___len |= __privileged_code_end___len >> 8 ;
    __privileged_code_end___len |= __privileged_code_end___len >> 16 ;
    . = ALIGN( MAX( __privileged_code_end___len + 1, 32 ) ) ;

    __privileged_code_end__ = .;
    __privileged_functions_end__ = .;

    __cs3_reset = __cs3_reset_cortex_m;
    *(.cs3.reset)
    /* Make sure we pulled in some reset code.  */
    ASSERT (. != __cs3_reset, "No reset code");
    
    *(.handlers)
    
    *(.text .text.* .gnu.linkonce.t.*)
    *(.plt)
    *(.gnu.warning)
    *(.glue_7t) *(.glue_7) *(.vfp11_veneer)

    *(.rodata .rodata.* .gnu.linkonce.r.*)

    *(.ARM.extab* .gnu.linkonce.armextab.*)
    *(.gcc_except_table)
    *(.eh_frame_hdr)
    *(.eh_frame)

    . = ALIGN(4);
    KEEP(*(.init))

    . = ALIGN(4);
    __preinit_array_start = .;
    KEEP (*(.preinit_array))
    __preinit_array_end = .;

    . = ALIGN(4);
    __init_array_start = .;
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array))
    __init_array_end = .;

    . = ALIGN(0x4);
    KEEP (*crtbegin.o(.ctors))
    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*crtend.o(.ctors))

    . = ALIGN(4);
    KEEP(*(.fini))

    . = ALIGN(4);
    __fini_array_start = .;
    KEEP (*(.fini_array))
    KEEP (*(SORT(.fini_array.*)))
    __fini_array_end = .;

    KEEP (*crtbegin.o(.dtors))
    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*crtend.o(.dtors))

    . = ALIGN(4);
    __cs3_regions = .;
    LONG (0)
    LONG (__cs3_region_init_ram)
    LONG (__cs3_region_start_ram)
    LONG (__cs3_region_init_size_ram)
    LONG (__cs3_region_zero_size_ram)
  }

  /* .ARM.exidx is sorted, so has to go in its own output section.  */
  __exidx_start = .;
  .ARM.exidx :
  {
    *(.ARM.exidx* .gnu.linkonce.armexidx.*)
  } >rom
  __exidx_end = .;
  .text.align :
  {
    . = ALIGN(8);
    _etext = .;
  } >rom
  __cs3_region_size_rom = LENGTH(rom);
  __cs3_region_num = 1;
  
  .data_begin :
  {
    . = ALIGN(32);
    __rom_data_begin = .;
  } > rom

  .data :
  {
    __cs3_region_start_ram = .;
    __ram_data_begin = .;
    __privileged_data_start__ = .;
    __cs3_interrupt_vector_mutable = __cs3_interrupt_vector_cortex_m_mutable;
    *(.cs3.interrupt_vector_mutable)
    /* Make sure we pulled in an interrupt vector.  */
    ASSERT (. != __cs3_interrupt_vector_cortex_m_mutable, "No interrupt vector mutable table");
    *( privileged_data )

    __privileged_data_end___len = . - __privileged_data_start__ - 1 ;
    __privileged_data_end___len |= __privileged_data_end___len >> 1 ;
    __privileged_data_end___len |= __privileged_data_end___len >> 2 ;
    __privileged_data_end___len |= __privileged_data_end___len >> 4 ;
    __privileged_data_end___len |= __privileged_data_end___len >> 8 ;
    __privileged_data_end___len |= __privileged_data_end___len >> 16 ;
    . = ALIGN( MAX( __privileged_data_end___len + 1, 32 ) ) ;

    __privileged_data_end__ = .;
    *(.cs3.region-head.ram)
    KEEP(*(.jcr))
    *(.got.plt) *(.got)
    *(.shdata)
    *(.data .data.* .gnu.linkonce.d.*)
    *(.ram)
    . = ALIGN (32);
    _edata = .;
  } >ram AT>rom
  .data_end :
  {
    . = ALIGN(32);
    __rom_data_end = .;
  } > rom

  .bss :
  {
    . = ALIGN(32);
    __bss_ram_begin = .;
    *(.shbss)
    *(.bss .bss.* .gnu.linkonce.b.*)
    *(COMMON)
    *(.ram.b)
    . = ALIGN(32);
    __bss_ram_end = .;
    _end = .;
    __end = .;
  } >ram

  /* This used for USB RAM section */
	.usb_ram (NOLOAD):
	{
		*.o (USB_RAM)
	} > ram2
  .heap (NOLOAD) :
  {
    *(.heap)
  } >ram
  .stack (__cs3_stack - __cs3_stack_size) (NOLOAD):
  {
    *(.stack)
    _estack = .;
    PROVIDE(estack = .);
  } >ram

  __cs3_region_init_ram = LOADADDR (.data);
  __cs3_region_init_size_ram = _edata - __cs3_region_start_ram;
  __cs3_region_zero_size_ram = _end - _edata;
  __cs3_region_size_ram = LENGTH(ram);
  __cs3_region_num = 1;
  
  __FLASH_segment_start__ = ORIGIN(rom);
  __FLASH_segment_end__ = __FLASH_segment_start__ + LENGTH(rom);
  __SRAM_segment_start__ = ORIGIN(ram);
  __SRAM_segment_end__ = __SRAM_segment_start__ + LENGTH(ram);

  .stab 0 (NOLOAD) : { *(.stab) }
  .stabstr 0 (NOLOAD) : { *(.stabstr) }
  /* DWARF debug sections.
   * Symbols in the DWARF debugging sections are relative to the beginning
   * of the section so we begin them at 0.  */
  /* DWARF 1 */
  .debug          0 : { *(.debug) }
  .line           0 : { *(.line) }
  /* GNU DWARF 1 extensions */
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_sfnames  0 : { *(.debug_sfnames) }
  /* DWARF 1.1 and DWARF 2 */
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }
  /* DWARF 2 */
  .debug_info     0 : { *(.debug_info .gnu.linkonce.wi.*) }
  .debug_abbrev   0 : { *(.debug_abbrev) }
  .debug_line     0 : { *(.debug_line) }
  .debug_frame    0 : { *(.debug_frame) }
  .debug_str      0 : { *(.debug_str) }
  .debug_loc      0 : { *(.debug_loc) }
  .debug_macinfo  0 : { *(.debug_macinfo) }
  /* SGI/MIPS DWARF 2 extensions */
  .debug_weaknames 0 : { *(.debug_weaknames) }
  .debug_funcnames 0 : { *(.debug_funcnames) }
  .debug_typenames 0 : { *(.debug_typenames) }
  .debug_varnames  0 : { *(.debug_varnames) }

  .note.gnu.arm.ident 0 : { KEEP (*(.note.gnu.arm.ident)) }
  .ARM.attributes 0 : { KEEP (*(.ARM.attributes)) }
  /DISCARD/ : { *(.note.GNU-stack) }
}