8746ad98 |
1 | /* |
a074364c |
2 | * linker script for configurable keymap |
3 | * |
4 | * This adds keymap section which places keymap at fixed address and |
5 | * is based on binutils-avr ldscripts(/usr/lib/ldscripts/avr5.x). |
6 | */ |
7 | OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr") |
8 | OUTPUT_ARCH(avr:5) |
9 | MEMORY |
10 | { |
8746ad98 |
11 | /* With keymap section |
a074364c |
12 | * |
13 | * Flash Map of ATMega32U4(32KB) |
14 | * +------------+ 0x0000 |
15 | * | .vectors | |
16 | * | .progmem | |
17 | * | .init0-9 | > text region |
18 | * | .text | |
19 | * | .fini9-0 | |
20 | * | | |
21 | * |------------| _etext |
22 | * | .data | |
23 | * | .bss | > data region |
24 | * | .noinit | |
25 | * | | |
26 | * |------------| 0x6800 |
27 | * | .keymap | > keymap region(2KB) |
28 | * |------------| 0x7000 |
29 | * | bootloader | 4KB |
30 | * +------------+ 0x7FFF |
31 | */ |
32 | text (rx) : ORIGIN = 0, LENGTH = 128K |
33 | keymap (rw!x) : ORIGIN = 0x6800, LENGTH = 2K |
34 | data (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0 |
35 | eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 64K |
36 | fuse (rw!x) : ORIGIN = 0x820000, LENGTH = 1K |
37 | lock (rw!x) : ORIGIN = 0x830000, LENGTH = 1K |
38 | signature (rw!x) : ORIGIN = 0x840000, LENGTH = 1K |
39 | } |
40 | SECTIONS |
41 | { |
42 | /* Read-only sections, merged into text segment: */ |
43 | .hash : { *(.hash) } |
44 | .dynsym : { *(.dynsym) } |
45 | .dynstr : { *(.dynstr) } |
46 | .gnu.version : { *(.gnu.version) } |
47 | .gnu.version_d : { *(.gnu.version_d) } |
48 | .gnu.version_r : { *(.gnu.version_r) } |
49 | .rel.init : { *(.rel.init) } |
50 | .rela.init : { *(.rela.init) } |
51 | .rel.text : |
52 | { |
53 | *(.rel.text) |
54 | *(.rel.text.*) |
55 | *(.rel.gnu.linkonce.t*) |
56 | } |
57 | .rela.text : |
58 | { |
59 | *(.rela.text) |
60 | *(.rela.text.*) |
61 | *(.rela.gnu.linkonce.t*) |
62 | } |
63 | .rel.fini : { *(.rel.fini) } |
64 | .rela.fini : { *(.rela.fini) } |
65 | .rel.rodata : |
66 | { |
67 | *(.rel.rodata) |
68 | *(.rel.rodata.*) |
69 | *(.rel.gnu.linkonce.r*) |
70 | } |
71 | .rela.rodata : |
72 | { |
73 | *(.rela.rodata) |
74 | *(.rela.rodata.*) |
75 | *(.rela.gnu.linkonce.r*) |
76 | } |
77 | .rel.data : |
78 | { |
79 | *(.rel.data) |
80 | *(.rel.data.*) |
81 | *(.rel.gnu.linkonce.d*) |
82 | } |
83 | .rela.data : |
84 | { |
85 | *(.rela.data) |
86 | *(.rela.data.*) |
87 | *(.rela.gnu.linkonce.d*) |
88 | } |
89 | .rel.ctors : { *(.rel.ctors) } |
90 | .rela.ctors : { *(.rela.ctors) } |
91 | .rel.dtors : { *(.rel.dtors) } |
92 | .rela.dtors : { *(.rela.dtors) } |
93 | .rel.got : { *(.rel.got) } |
94 | .rela.got : { *(.rela.got) } |
95 | .rel.bss : { *(.rel.bss) } |
96 | .rela.bss : { *(.rela.bss) } |
97 | .rel.plt : { *(.rel.plt) } |
98 | .rela.plt : { *(.rela.plt) } |
99 | /* Internal text space or external memory. */ |
100 | .text : |
101 | { |
102 | *(.vectors) |
103 | KEEP(*(.vectors)) |
104 | /* For data that needs to reside in the lower 64k of progmem. */ |
105 | *(.progmem.gcc*) |
106 | *(.progmem*) |
107 | . = ALIGN(2); |
108 | __trampolines_start = . ; |
109 | /* The jump trampolines for the 16-bit limited relocs will reside here. */ |
110 | *(.trampolines) |
111 | *(.trampolines*) |
112 | __trampolines_end = . ; |
113 | /* For future tablejump instruction arrays for 3 byte pc devices. |
114 | We don't relax jump/call instructions within these sections. */ |
115 | *(.jumptables) |
116 | *(.jumptables*) |
117 | /* For code that needs to reside in the lower 128k progmem. */ |
118 | *(.lowtext) |
119 | *(.lowtext*) |
120 | __ctors_start = . ; |
121 | *(.ctors) |
122 | __ctors_end = . ; |
123 | __dtors_start = . ; |
124 | *(.dtors) |
125 | __dtors_end = . ; |
126 | KEEP(SORT(*)(.ctors)) |
127 | KEEP(SORT(*)(.dtors)) |
128 | /* From this point on, we don't bother about wether the insns are |
129 | below or above the 16 bits boundary. */ |
130 | *(.init0) /* Start here after reset. */ |
131 | KEEP (*(.init0)) |
132 | *(.init1) |
133 | KEEP (*(.init1)) |
134 | *(.init2) /* Clear __zero_reg__, set up stack pointer. */ |
135 | KEEP (*(.init2)) |
136 | *(.init3) |
137 | KEEP (*(.init3)) |
138 | *(.init4) /* Initialize data and BSS. */ |
139 | KEEP (*(.init4)) |
140 | *(.init5) |
141 | KEEP (*(.init5)) |
142 | *(.init6) /* C++ constructors. */ |
143 | KEEP (*(.init6)) |
144 | *(.init7) |
145 | KEEP (*(.init7)) |
146 | *(.init8) |
147 | KEEP (*(.init8)) |
148 | *(.init9) /* Call main(). */ |
149 | KEEP (*(.init9)) |
150 | *(.text) |
151 | . = ALIGN(2); |
152 | *(.text.*) |
153 | . = ALIGN(2); |
154 | *(.fini9) /* _exit() starts here. */ |
155 | KEEP (*(.fini9)) |
156 | *(.fini8) |
157 | KEEP (*(.fini8)) |
158 | *(.fini7) |
159 | KEEP (*(.fini7)) |
160 | *(.fini6) /* C++ destructors. */ |
161 | KEEP (*(.fini6)) |
162 | *(.fini5) |
163 | KEEP (*(.fini5)) |
164 | *(.fini4) |
165 | KEEP (*(.fini4)) |
166 | *(.fini3) |
167 | KEEP (*(.fini3)) |
168 | *(.fini2) |
169 | KEEP (*(.fini2)) |
170 | *(.fini1) |
171 | KEEP (*(.fini1)) |
172 | *(.fini0) /* Infinite loop after program termination. */ |
173 | KEEP (*(.fini0)) |
174 | _etext = . ; |
175 | } > text |
176 | .data : AT (ADDR (.text) + SIZEOF (.text)) |
177 | { |
178 | PROVIDE (__data_start = .) ; |
179 | *(.data) |
180 | *(.data*) |
181 | *(.rodata) /* We need to include .rodata here if gcc is used */ |
182 | *(.rodata*) /* with -fdata-sections. */ |
183 | *(.gnu.linkonce.d*) |
184 | . = ALIGN(2); |
185 | _edata = . ; |
186 | PROVIDE (__data_end = .) ; |
187 | } > data |
188 | .bss : AT (ADDR (.bss)) |
189 | { |
190 | PROVIDE (__bss_start = .) ; |
191 | *(.bss) |
192 | *(.bss*) |
193 | *(COMMON) |
194 | PROVIDE (__bss_end = .) ; |
195 | } > data |
196 | __data_load_start = LOADADDR(.data); |
197 | __data_load_end = __data_load_start + SIZEOF(.data); |
198 | /* Global data not cleared after reset. */ |
199 | .noinit : |
200 | { |
201 | PROVIDE (__noinit_start = .) ; |
202 | *(.noinit*) |
203 | PROVIDE (__noinit_end = .) ; |
204 | _end = . ; |
205 | PROVIDE (__heap_start = .) ; |
206 | } > data |
207 | /* keymap region is located at end of flash |
208 | * .fn_actions Fn actions definitions |
209 | * .keymaps Mapping layers |
210 | */ |
211 | .keymap : |
212 | { |
213 | PROVIDE(__keymap_start = .) ; |
214 | *(.keymap.fn_actions) /* 32*actions = 64bytes */ |
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215 | . = ALIGN(0x40); |
a074364c |
216 | *(.keymap.keymaps) /* rest of .keymap section */ |
217 | *(.keymap*) |
218 | /* . = ALIGN(0x800); */ /* keymap section takes 2KB- */ |
219 | } > keymap = 0x00 /* zero fill */ |
220 | .eeprom : |
221 | { |
222 | *(.eeprom*) |
223 | __eeprom_end = . ; |
224 | } > eeprom |
225 | .fuse : |
226 | { |
227 | KEEP(*(.fuse)) |
228 | KEEP(*(.lfuse)) |
229 | KEEP(*(.hfuse)) |
230 | KEEP(*(.efuse)) |
231 | } > fuse |
232 | .lock : |
233 | { |
234 | KEEP(*(.lock*)) |
235 | } > lock |
236 | .signature : |
237 | { |
238 | KEEP(*(.signature*)) |
239 | } > signature |
240 | /* Stabs debugging sections. */ |
241 | .stab 0 : { *(.stab) } |
242 | .stabstr 0 : { *(.stabstr) } |
243 | .stab.excl 0 : { *(.stab.excl) } |
244 | .stab.exclstr 0 : { *(.stab.exclstr) } |
245 | .stab.index 0 : { *(.stab.index) } |
246 | .stab.indexstr 0 : { *(.stab.indexstr) } |
247 | .comment 0 : { *(.comment) } |
248 | /* DWARF debug sections. |
249 | Symbols in the DWARF debugging sections are relative to the beginning |
250 | of the section so we begin them at 0. */ |
251 | /* DWARF 1 */ |
252 | .debug 0 : { *(.debug) } |
253 | .line 0 : { *(.line) } |
254 | /* GNU DWARF 1 extensions */ |
255 | .debug_srcinfo 0 : { *(.debug_srcinfo) } |
256 | .debug_sfnames 0 : { *(.debug_sfnames) } |
257 | /* DWARF 1.1 and DWARF 2 */ |
258 | .debug_aranges 0 : { *(.debug_aranges) } |
259 | .debug_pubnames 0 : { *(.debug_pubnames) } |
260 | /* DWARF 2 */ |
261 | .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) } |
262 | .debug_abbrev 0 : { *(.debug_abbrev) } |
263 | .debug_line 0 : { *(.debug_line) } |
264 | .debug_frame 0 : { *(.debug_frame) } |
265 | .debug_str 0 : { *(.debug_str) } |
266 | .debug_loc 0 : { *(.debug_loc) } |
267 | .debug_macinfo 0 : { *(.debug_macinfo) } |
268 | } |