Commit | Line | Data |
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82704155 | 1 | # Copyright (C) 2014-2019 Free Software Foundation, Inc. |
6c19b93b | 2 | # |
985743c7 NC |
3 | # Copying and distribution of this file, with or without modification, |
4 | # are permitted in any medium without royalty provided the copyright | |
5 | # notice and this notice are preserved. | |
f6c1a2d5 NC |
6 | # |
7 | # Unusual variables checked by this code: | |
8 | # NOP - four byte opcode for no-op (defaults to 0) | |
9 | # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start | |
10 | # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... | |
11 | # (e.g., .PARISC.global) | |
12 | # OTHER_SECTIONS - at the end | |
13 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an | |
14 | # executable (e.g., _DYNAMIC_LINK) | |
15 | # TEXT_START_SYMBOLS - symbols that appear at the start of the | |
16 | # .text section. | |
17 | # DATA_START_SYMBOLS - symbols that appear at the start of the | |
18 | # .data section. | |
19 | # OTHER_BSS_SYMBOLS - symbols that appear at the start of the | |
20 | # .bss section besides __bss_start. | |
6c19b93b | 21 | # EMBEDDED - whether this is for an embedded system. |
f6c1a2d5 NC |
22 | # |
23 | # When adding sections, do note that the names of some sections are used | |
24 | # when specifying the start address of the next. | |
25 | # | |
26 | test -z "$ENTRY" && ENTRY=_start | |
27 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
28 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
29 | if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi | |
30 | test "$LD_FLAG" = "N" && DATA_ADDR=. | |
31 | ||
6c19b93b | 32 | CTOR=".ctors ${CONSTRUCTING-0} : |
f6c1a2d5 NC |
33 | { |
34 | ${CONSTRUCTING+ PROVIDE (__CTOR_LIST__ = .); } | |
35 | ${CONSTRUCTING+${CTOR_START}} | |
36 | KEEP (*(.ctors)) | |
37 | ||
38 | ${CONSTRUCTING+${CTOR_END}} | |
39 | ${CONSTRUCTING+ PROVIDE(__CTOR_END__ = .); } | |
40 | } ${RELOCATING+ > ${TEXT_MEMORY}}" | |
41 | ||
42 | DTOR=" .dtors ${CONSTRUCTING-0} : | |
43 | { | |
44 | ${CONSTRUCTING+ PROVIDE(__DTOR_LIST__ = .); } | |
45 | KEEP (*(.dtors)) | |
46 | ${CONSTRUCTING+ PROVIDE(__DTOR_END__ = .); } | |
47 | } ${RELOCATING+ > ${TEXT_MEMORY}}" | |
48 | ||
49 | ||
50 | VECTORS=" | |
51 | /* If the 'vectors_addr' symbol is defined, it indicates the start address | |
52 | of interrupt vectors. This depends on the 68HC11 operating mode: | |
53 | ||
54 | Addr | |
55 | Single chip 0xffc0 | |
56 | Extended mode 0xffc0 | |
57 | Bootstrap 0x00c0 | |
58 | Test 0xbfc0 | |
59 | ||
6c19b93b | 60 | In general, the vectors address is 0xffc0. This can be overriden |
f6c1a2d5 NC |
61 | with the '-defsym vectors_addr=0xbfc0' ld option. |
62 | ||
63 | Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but | |
64 | they are redirected to 0x00c0 by the internal PROM. Application's vectors | |
65 | must also consist of jump instructions (see Motorola's manual). */ | |
66 | ||
67 | PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0); | |
68 | .vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 : | |
69 | { | |
70 | KEEP (*(.vectors)) | |
71 | }" | |
72 | ||
73 | # | |
74 | # We provide two emulations: a fixed on that defines some memory banks | |
75 | # and a configurable one that includes a user provided memory definition. | |
76 | # | |
77 | case $GENERIC_BOARD in | |
78 | yes|1|YES) | |
79 | MEMORY_DEF=" | |
80 | /* Get memory banks definition from some user configuration file. | |
81 | This file must be located in some linker directory (search path | |
82 | with -L<dir>). See fixed memory banks emulation script. */ | |
83 | INCLUDE memory.x; | |
84 | " | |
85 | ;; | |
86 | *) | |
87 | MEMORY_DEF=" | |
88 | /* Fixed definition of the available memory banks. | |
89 | See generic emulation script for a user defined configuration. */ | |
90 | MEMORY | |
91 | { | |
92 | page0 (rwx) : ORIGIN = 0x0, LENGTH = 256 | |
93 | text (rx) : ORIGIN = ${ROM_START_ADDR}, LENGTH = ${ROM_SIZE} | |
94 | data : ORIGIN = ${RAM_START_ADDR}, LENGTH = ${RAM_SIZE} | |
95 | eeprom : ORIGIN = ${EEPROM_START_ADDR}, LENGTH = ${EEPROM_SIZE} | |
96 | } | |
97 | ||
98 | /* Setup the stack on the top of the data memory bank. */ | |
99 | PROVIDE (_stack = ${RAM_START_ADDR} + ${RAM_SIZE} - 1); | |
100 | " | |
101 | ;; | |
102 | esac | |
103 | ||
104 | STARTUP_CODE=" | |
105 | /* Startup code. */ | |
106 | KEEP (*(.install0)) /* Section should setup the stack pointer. */ | |
107 | KEEP (*(.install1)) /* Place holder for applications. */ | |
108 | KEEP (*(.install2)) /* Optional installation of data sections in RAM. */ | |
109 | KEEP (*(.install3)) /* Place holder for applications. */ | |
110 | KEEP (*(.install4)) /* Section that calls the main. */ | |
111 | " | |
112 | ||
113 | FINISH_CODE=" | |
114 | /* Finish code. */ | |
115 | KEEP (*(.fini0)) /* Beginning of finish code (_exit symbol). */ | |
116 | KEEP (*(.fini1)) /* Place holder for applications. */ | |
117 | KEEP (*(.fini2)) /* C++ destructors. */ | |
118 | KEEP (*(.fini3)) /* Place holder for applications. */ | |
119 | KEEP (*(.fini4)) /* Runtime exit. */ | |
120 | " | |
121 | ||
122 | PRE_COMPUTE_DATA_SIZE=" | |
123 | /* SCz: this does not work yet... This is supposed to force the loading | |
124 | of _map_data.o (from libgcc.a) when the .data section is not empty. | |
125 | By doing so, this should bring the code that copies the .data section | |
126 | from ROM to RAM at init time. | |
127 | ||
128 | ___pre_comp_data_size = SIZEOF(.data); | |
129 | __install_data_sections = ___pre_comp_data_size > 0 ? | |
130 | __map_data_sections : 0; | |
131 | */ | |
132 | " | |
133 | ||
134 | INSTALL_RELOC=" | |
135 | .install0 0 : { *(.install0) } | |
136 | .install1 0 : { *(.install1) } | |
137 | .install2 0 : { *(.install2) } | |
138 | .install3 0 : { *(.install3) } | |
139 | .install4 0 : { *(.install4) } | |
140 | " | |
141 | ||
142 | FINISH_RELOC=" | |
143 | .fini0 0 : { *(.fini0) } | |
144 | .fini1 0 : { *(.fini1) } | |
145 | .fini2 0 : { *(.fini2) } | |
146 | .fini3 0 : { *(.fini3) } | |
147 | .fini4 0 : { *(.fini4) } | |
148 | " | |
149 | ||
150 | BSS_DATA_RELOC=" | |
151 | .data1 0 : { *(.data1) } | |
152 | ||
153 | /* We want the small data sections together, so single-instruction offsets | |
154 | can access them all, and initialized data all before uninitialized, so | |
155 | we can shorten the on-disk segment size. */ | |
156 | .sdata 0 : { *(.sdata) } | |
157 | .sbss 0 : { *(.sbss) } | |
158 | .scommon 0 : { *(.scommon) } | |
159 | " | |
160 | ||
161 | SOFT_REGS_RELOC=" | |
162 | .softregs 0 : { *(.softregs) } | |
163 | " | |
164 | ||
165 | cat <<EOF | |
166 | ${RELOCATING+/* Linker script for 68HC12 executable (PROM). */} | |
167 | ${RELOCATING-/* Linker script for 68HC12 object file (ld -r). */} | |
168 | ||
82704155 | 169 | /* Copyright (C) 2014-2019 Free Software Foundation, Inc. |
985743c7 NC |
170 | |
171 | Copying and distribution of this script, with or without modification, | |
172 | are permitted in any medium without royalty provided the copyright | |
173 | notice and this notice are preserved. */ | |
174 | ||
f6c1a2d5 NC |
175 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", |
176 | "${LITTLE_OUTPUT_FORMAT}") | |
177 | OUTPUT_ARCH(${OUTPUT_ARCH}) | |
178 | ${RELOCATING+ENTRY(${ENTRY})} | |
179 | ||
180 | ${RELOCATING+${LIB_SEARCH_DIRS}} | |
181 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} | |
182 | ${RELOCATING+${MEMORY_DEF}} | |
183 | ||
184 | SECTIONS | |
185 | { | |
186 | .hash ${RELOCATING-0} : { *(.hash) } | |
187 | .dynsym ${RELOCATING-0} : { *(.dynsym) } | |
188 | .dynstr ${RELOCATING-0} : { *(.dynstr) } | |
189 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } | |
190 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } | |
191 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } | |
192 | ||
193 | .rel.text ${RELOCATING-0} : | |
194 | { | |
195 | *(.rel.text) | |
196 | ${RELOCATING+*(.rel.text.*)} | |
197 | ${RELOCATING+*(.rel.gnu.linkonce.t.*)} | |
198 | } | |
199 | .rela.text ${RELOCATING-0} : | |
200 | { | |
201 | *(.rela.text) | |
202 | ${RELOCATING+*(.rela.text.*)} | |
203 | ${RELOCATING+*(.rela.gnu.linkonce.t.*)} | |
204 | } | |
205 | .rel.data ${RELOCATING-0} : | |
206 | { | |
207 | *(.rel.data) | |
208 | ${RELOCATING+*(.rel.data.*)} | |
209 | ${RELOCATING+*(.rel.gnu.linkonce.d.*)} | |
210 | } | |
211 | .rela.data ${RELOCATING-0} : | |
212 | { | |
213 | *(.rela.data) | |
214 | ${RELOCATING+*(.rela.data.*)} | |
215 | ${RELOCATING+*(.rela.gnu.linkonce.d.*)} | |
216 | } | |
217 | .rel.rodata ${RELOCATING-0} : | |
218 | { | |
219 | *(.rel.rodata) | |
220 | ${RELOCATING+*(.rel.rodata.*)} | |
221 | ${RELOCATING+*(.rel.gnu.linkonce.r.*)} | |
222 | } | |
223 | .rela.rodata ${RELOCATING-0} : | |
224 | { | |
225 | *(.rela.rodata) | |
226 | ${RELOCATING+*(.rela.rodata.*)} | |
227 | ${RELOCATING+*(.rela.gnu.linkonce.r.*)} | |
228 | } | |
229 | .rel.sdata ${RELOCATING-0} : | |
230 | { | |
231 | *(.rel.sdata) | |
232 | ${RELOCATING+*(.rel.sdata.*)} | |
233 | ${RELOCATING+*(.rel.gnu.linkonce.s.*)} | |
234 | } | |
235 | .rela.sdata ${RELOCATING-0} : | |
236 | { | |
237 | *(.rela.sdata) | |
238 | ${RELOCATING+*(.rela.sdata.*)} | |
239 | ${RELOCATING+*(.rela.gnu.linkonce.s.*)} | |
240 | } | |
241 | .rel.sbss ${RELOCATING-0} : | |
6c19b93b | 242 | { |
f6c1a2d5 NC |
243 | *(.rel.sbss) |
244 | ${RELOCATING+*(.rel.sbss.*)} | |
245 | ${RELOCATING+*(.rel.gnu.linkonce.sb.*)} | |
246 | } | |
247 | .rela.sbss ${RELOCATING-0} : | |
248 | { | |
249 | *(.rela.sbss) | |
250 | ${RELOCATING+*(.rela.sbss.*)} | |
251 | ${RELOCATING+*(.rel.gnu.linkonce.sb.*)} | |
252 | } | |
6c19b93b AM |
253 | .rel.bss ${RELOCATING-0} : |
254 | { | |
f6c1a2d5 NC |
255 | *(.rel.bss) |
256 | ${RELOCATING+*(.rel.bss.*)} | |
257 | ${RELOCATING+*(.rel.gnu.linkonce.b.*)} | |
258 | } | |
6c19b93b AM |
259 | .rela.bss ${RELOCATING-0} : |
260 | { | |
f6c1a2d5 NC |
261 | *(.rela.bss) |
262 | ${RELOCATING+*(.rela.bss.*)} | |
263 | ${RELOCATING+*(.rela.gnu.linkonce.b.*)} | |
264 | } | |
265 | .rel.stext ${RELOCATING-0} : { *(.rel.stest) } | |
266 | .rela.stext ${RELOCATING-0} : { *(.rela.stest) } | |
267 | .rel.etext ${RELOCATING-0} : { *(.rel.etest) } | |
268 | .rela.etext ${RELOCATING-0} : { *(.rela.etest) } | |
269 | .rel.sdata ${RELOCATING-0} : { *(.rel.sdata) } | |
270 | .rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } | |
271 | .rel.edata ${RELOCATING-0} : { *(.rel.edata) } | |
272 | .rela.edata ${RELOCATING-0} : { *(.rela.edata) } | |
273 | .rel.eit_v ${RELOCATING-0} : { *(.rel.eit_v) } | |
274 | .rela.eit_v ${RELOCATING-0} : { *(.rela.eit_v) } | |
275 | .rel.ebss ${RELOCATING-0} : { *(.rel.ebss) } | |
276 | .rela.ebss ${RELOCATING-0} : { *(.rela.ebss) } | |
277 | .rel.srodata ${RELOCATING-0} : { *(.rel.srodata) } | |
278 | .rela.srodata ${RELOCATING-0} : { *(.rela.srodata) } | |
279 | .rel.erodata ${RELOCATING-0} : { *(.rel.erodata) } | |
280 | .rela.erodata ${RELOCATING-0} : { *(.rela.erodata) } | |
281 | .rel.got ${RELOCATING-0} : { *(.rel.got) } | |
282 | .rela.got ${RELOCATING-0} : { *(.rela.got) } | |
283 | .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } | |
284 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } | |
285 | .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } | |
286 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } | |
287 | .rel.init ${RELOCATING-0} : { *(.rel.init) } | |
288 | .rela.init ${RELOCATING-0} : { *(.rela.init) } | |
289 | .rel.fini ${RELOCATING-0} : { *(.rel.fini) } | |
290 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } | |
291 | .rel.plt ${RELOCATING-0} : { *(.rel.plt) } | |
292 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } | |
293 | ||
294 | /* Concatenate .page0 sections. Put them in the page0 memory bank | |
295 | unless we are creating a relocatable file. */ | |
296 | .page0 : | |
297 | { | |
298 | *(.page0) | |
299 | } ${RELOCATING+ > page0} | |
300 | ||
301 | /* Start of text section. */ | |
6c19b93b | 302 | .stext ${RELOCATING-0} : |
f6c1a2d5 NC |
303 | { |
304 | *(.stext) | |
305 | } ${RELOCATING+ > ${TEXT_MEMORY}} | |
306 | ||
307 | .init ${RELOCATING-0} : | |
308 | { | |
2d3181c7 | 309 | KEEP (*(SORT_NONE(.init))) |
f6c1a2d5 NC |
310 | } ${RELOCATING+=${NOP-0}} |
311 | ||
312 | ${RELOCATING-${INSTALL_RELOC}} | |
313 | ${RELOCATING-${FINISH_RELOC}} | |
314 | ||
315 | .text ${RELOCATING-0}: | |
316 | { | |
317 | /* Put startup code at beginning so that _start keeps same address. */ | |
318 | ${RELOCATING+${STARTUP_CODE}} | |
319 | ||
f6c1a2d5 NC |
320 | *(.text) |
321 | ${RELOCATING+*(.text.*)} | |
075a2b89 | 322 | /* .gnu.warning sections are handled specially by elf.em. */ |
f6c1a2d5 NC |
323 | *(.gnu.warning) |
324 | ${RELOCATING+*(.gnu.linkonce.t.*)} | |
325 | ${RELOCATING+*(.tramp)} | |
326 | ${RELOCATING+*(.tramp.*)} | |
327 | ||
2d3181c7 | 328 | ${RELOCATING+KEEP (*(SORT_NONE(.fini)))} |
f6c1a2d5 NC |
329 | ${RELOCATING+${FINISH_CODE}} |
330 | ||
331 | ${RELOCATING+_etext = .;} | |
332 | ${RELOCATING+PROVIDE (etext = .);} | |
333 | ${RELOCATING+. = ALIGN(2);} | |
334 | } ${RELOCATING+ > ${TEXT_MEMORY} =0xa7a7a7a7} | |
335 | ||
336 | .eh_frame ${RELOCATING-0} : | |
337 | { | |
338 | KEEP (*(.eh_frame)) | |
339 | } ${RELOCATING+ > ${TEXT_MEMORY}} | |
340 | ||
341 | .gcc_except_table ${RELOCATING-0} : | |
342 | { | |
343 | *(.gcc_except_table) | |
344 | } ${RELOCATING+ > ${TEXT_MEMORY}} | |
345 | ||
346 | .rodata ${RELOCATING-0} : | |
347 | { | |
348 | *(.rodata) | |
349 | ${RELOCATING+*(.rodata.*)} | |
350 | ${RELOCATING+*(.gnu.linkonce.r*)} | |
351 | ${RELOCATING+. = ALIGN(2);} | |
352 | } ${RELOCATING+ > ${TEXT_MEMORY} =0xffffffff} | |
353 | ||
354 | .rodata1 ${RELOCATING-0} : | |
355 | { | |
356 | *(.rodata1) | |
357 | ${RELOCATING+. = ALIGN(2);} | |
358 | } ${RELOCATING+ > ${TEXT_MEMORY} =0xffffffff} | |
359 | ||
360 | /* Constructor and destructor tables are in ROM. */ | |
361 | ${RELOCATING+${CTOR}} | |
362 | ${RELOCATING+${DTOR}} | |
363 | ||
364 | .jcr ${RELOCATING-0} : | |
365 | { | |
366 | KEEP (*(.jcr)) | |
367 | } ${RELOCATING+ > ${TEXT_MEMORY}} | |
368 | ||
369 | /* Start of the data section image in ROM. */ | |
370 | ${RELOCATING+__data_image = .;} | |
371 | ${RELOCATING+PROVIDE (__data_image = .);} | |
372 | ||
373 | /* All read-only sections that normally go in PROM must be above. | |
374 | We construct the DATA image section in PROM at end of all these | |
375 | read-only sections. The data image must be copied at init time. | |
376 | Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */ | |
377 | .data ${RELOCATING-0} : ${RELOCATING+AT (__data_image)} | |
378 | { | |
379 | ${RELOCATING+__data_section_start = .;} | |
380 | ${RELOCATING+PROVIDE (__data_section_start = .);} | |
381 | ||
382 | ${RELOCATING+${DATA_START_SYMBOLS}} | |
383 | ${RELOCATING+*(.sdata)} | |
384 | *(.data) | |
385 | ${RELOCATING+*(.data.*)} | |
386 | ${RELOCATING+*(.data1)} | |
387 | ${RELOCATING+*(.gnu.linkonce.d.*)} | |
388 | ${CONSTRUCTING+CONSTRUCTORS} | |
389 | ||
390 | ${RELOCATING+_edata = .;} | |
391 | ${RELOCATING+PROVIDE (edata = .);} | |
392 | ${RELOCATING+. = ALIGN(2);} | |
393 | } ${RELOCATING+ > ${DATA_MEMORY} =0xffffffff} | |
394 | ||
395 | ${RELOCATING+__data_section_size = SIZEOF(.data);} | |
396 | ${RELOCATING+PROVIDE (__data_section_size = SIZEOF(.data));} | |
397 | ${RELOCATING+__data_image_end = __data_image + __data_section_size;} | |
398 | ||
399 | ${RELOCATING+${PRE_COMPUTE_DATA_SIZE}} | |
400 | ||
401 | /* .install ${RELOCATING-0}: | |
402 | { | |
403 | . = _data_image_end; | |
404 | } ${RELOCATING+ > ${TEXT_MEMORY}} */ | |
405 | ||
406 | /* Relocation for some bss and data sections. */ | |
407 | ${RELOCATING-${BSS_DATA_RELOC}} | |
408 | ${RELOCATING-${SOFT_REGS_RELOC}} | |
409 | ||
410 | .bss ${RELOCATING-0} : | |
411 | { | |
412 | ${RELOCATING+__bss_start = .;} | |
413 | ${RELOCATING+*(.softregs)} | |
414 | ${RELOCATING+*(.sbss)} | |
415 | ${RELOCATING+*(.scommon)} | |
2bf2bf23 | 416 | ${RELOCATING+*(.dynbss)} |
f6c1a2d5 NC |
417 | *(.bss) |
418 | ${RELOCATING+*(.bss.*)} | |
419 | ${RELOCATING+*(.gnu.linkonce.b.*)} | |
2bf2bf23 | 420 | ${RELOCATING+*(COMMON)} |
f6c1a2d5 NC |
421 | ${RELOCATING+PROVIDE (_end = .);} |
422 | } ${RELOCATING+ > ${DATA_MEMORY}} | |
423 | ${RELOCATING+__bss_size = SIZEOF(.bss);} | |
424 | ${RELOCATING+PROVIDE (__bss_size = SIZEOF(.bss));} | |
425 | ||
426 | .eeprom ${RELOCATING-0} : | |
427 | { | |
428 | *(.eeprom) | |
2bf2bf23 | 429 | ${RELOCATING+*(.eeprom.*)} |
f6c1a2d5 NC |
430 | } ${RELOCATING+ > ${EEPROM_MEMORY}} |
431 | ||
432 | ${RELOCATING+${VECTORS}} | |
433 | ||
434 | /* Stabs debugging sections. */ | |
435 | .stab 0 : { *(.stab) } | |
436 | .stabstr 0 : { *(.stabstr) } | |
437 | .stab.excl 0 : { *(.stab.excl) } | |
438 | .stab.exclstr 0 : { *(.stab.exclstr) } | |
439 | .stab.index 0 : { *(.stab.index) } | |
440 | .stab.indexstr 0 : { *(.stab.indexstr) } | |
441 | ||
442 | .comment 0 : { *(.comment) } | |
443 | ||
ceb0a680 NC |
444 | EOF |
445 | ||
d061dfac | 446 | . $srcdir/scripttempl/DWARF.sc |
ceb0a680 NC |
447 | |
448 | cat <<EOF | |
f6c1a2d5 NC |
449 | } |
450 | EOF |