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linkcmds.base @ 53c99b8

Last change on this file since 53c99b8 was 53c99b8, checked in by Sebastian Huber <sebastian.huber@…>, on 10/28/15 at 09:18:05

bsps: Generalize .nocacheheap to .nocachenoload

Add ability to place data in a non-loadable cache-inhibited area.

Property mode set to 100644

File size: 14.2 KB

Line
1	/**
2	* @file
3	*
4	* @ingroup bsp_linker
5	*
6	* @brief Linker command base file.
7	*/
8
9	/*
10	* Copyright (c) 2011-2015 embedded brains GmbH. All rights reserved.
11	*
12	* embedded brains GmbH
13	* Dornierstr. 4
14	* 82178 Puchheim
15	* Germany
16	* <rtems@embedded-brains.de>
17	*
18	* The license and distribution terms for this file may be
19	* found in the file LICENSE in this distribution or at
20	* http://www.rtems.org/license/LICENSE.
21	*/
22
23	OUTPUT_FORMAT ("elf32-powerpc", "elf32-powerpc", "elf32-powerpc")
24
25	OUTPUT_ARCH (powerpc:common)
26
27	ENTRY (_start)
28
29	/*
30	* Global symbols that may be defined externally
31	*/
32
33	bsp_section_xbarrier_align = DEFINED (bsp_section_xbarrier_align) ? bsp_section_xbarrier_align : 1;
34	bsp_section_robarrier_align = DEFINED (bsp_section_robarrier_align) ? bsp_section_robarrier_align : 1;
35	bsp_section_rwbarrier_align = DEFINED (bsp_section_rwbarrier_align) ? bsp_section_rwbarrier_align : 1;
36
37	MEMORY {
38	UNEXPECTED_SECTIONS : ORIGIN = 0xffffffff, LENGTH = 0
39	}
40
41	SECTIONS {
42	.start : ALIGN_WITH_INPUT {
43	bsp_section_start_begin = .;
44	KEEP (*(.bsp_start_text))
45	KEEP (*(.bsp_start_data))
46	bsp_section_start_end = .;
47	} > REGION_START AT > REGION_START
48	bsp_section_start_size = bsp_section_start_end - bsp_section_start_begin;
49
50	.xbarrier : ALIGN_WITH_INPUT {
51	. = ALIGN (bsp_section_xbarrier_align);
52	} > REGION_TEXT AT > REGION_TEXT
53
54	.text : ALIGN_WITH_INPUT {
55	bsp_section_text_begin = .;
56	(SORT(.bsp_text))
57	(.text.unlikely .text._unlikely)
58	(.text .stub .text. .gnu.linkonce.t.*)
59	*(.gnu.warning)
60	*(.glink)
61	} > REGION_TEXT AT > REGION_TEXT_LOAD
62	.init : ALIGN_WITH_INPUT {
63	KEEP (*(.init))
64	} > REGION_TEXT AT > REGION_TEXT_LOAD
65	.fini : ALIGN_WITH_INPUT {
66	PROVIDE (_fini = .);
67	KEEP (*(.fini))
68	bsp_section_text_end = .;
69	} > REGION_TEXT AT > REGION_TEXT_LOAD
70	bsp_section_text_size = bsp_section_text_end - bsp_section_text_begin;
71	bsp_section_text_load_begin = LOADADDR (.text);
72	bsp_section_text_load_end = bsp_section_text_load_begin + bsp_section_text_size;
73
74	.fast_text : ALIGN_WITH_INPUT {
75	bsp_section_fast_text_begin = .;
76	*(.bsp_fast_text)
77	bsp_section_fast_text_end = .;
78	} > REGION_FAST_TEXT AT > REGION_FAST_TEXT_LOAD
79	bsp_section_fast_text_size = bsp_section_fast_text_end - bsp_section_fast_text_begin;
80	bsp_section_fast_text_load_begin = LOADADDR (.fast_text);
81	bsp_section_fast_text_load_end = bsp_section_fast_text_load_begin + bsp_section_fast_text_size;
82
83	.robarrier : ALIGN_WITH_INPUT {
84	. = ALIGN (bsp_section_robarrier_align);
85	} > REGION_RODATA AT > REGION_RODATA
86
87	.rodata : ALIGN_WITH_INPUT {
88	bsp_section_rodata_begin = .;
89	(SORT(.bsp_rodata))
90	(.rodata .rodata. .gnu.linkonce.r.*)
91	} > REGION_RODATA AT > REGION_RODATA_LOAD
92	.rodata1 : ALIGN_WITH_INPUT {
93	*(.rodata1)
94	} > REGION_RODATA AT > REGION_RODATA_LOAD
95	.sdata2 : ALIGN_WITH_INPUT {
96	PROVIDE (_SDA2_BASE_ = 32768);
97	(.sdata2 .sdata2. .gnu.linkonce.s2.*)
98	} > REGION_RODATA AT > REGION_RODATA_LOAD
99	.sbss2 : ALIGN_WITH_INPUT {
100	(.sbss2 .sbss2. .gnu.linkonce.sb2.*)
101	} > REGION_RODATA AT > REGION_RODATA_LOAD
102	.eh_frame_hdr : ALIGN_WITH_INPUT {
103	*(.eh_frame_hdr)
104	} > REGION_RODATA AT > REGION_RODATA_LOAD
105	.eh_frame : ALIGN_WITH_INPUT {
106	KEEP (*(.eh_frame))
107	} > REGION_RODATA AT > REGION_RODATA_LOAD
108	.gcc_except_table : ALIGN_WITH_INPUT {
109	(.gcc_except_table .gcc_except_table.)
110	} > REGION_RODATA AT > REGION_RODATA_LOAD
111	.tdata : ALIGN_WITH_INPUT {
112	_TLS_Data_begin = .;
113	(.tdata .tdata. .gnu.linkonce.td.*)
114	_TLS_Data_end = .;
115	} > REGION_RODATA AT > REGION_RODATA_LOAD
116	.tbss : ALIGN_WITH_INPUT {
117	_TLS_BSS_begin = .;
118	(.tbss .tbss. .gnu.linkonce.tb.) (.tcommon)
119	_TLS_BSS_end = .;
120	} > REGION_RODATA AT > REGION_RODATA_LOAD
121	_TLS_Data_size = _TLS_Data_end - _TLS_Data_begin;
122	_TLS_Data_begin = _TLS_Data_size != 0 ? _TLS_Data_begin : _TLS_BSS_begin;
123	_TLS_Data_end = _TLS_Data_size != 0 ? _TLS_Data_end : _TLS_BSS_begin;
124	_TLS_BSS_size = _TLS_BSS_end - _TLS_BSS_begin;
125	_TLS_Size = _TLS_BSS_end - _TLS_Data_begin;
126	_TLS_Alignment = MAX (ALIGNOF (.tdata), ALIGNOF (.tbss));
127	.preinit_array : ALIGN_WITH_INPUT {
128	PROVIDE_HIDDEN (__preinit_array_start = .);
129	KEEP (*(.preinit_array))
130	PROVIDE_HIDDEN (__preinit_array_end = .);
131	} > REGION_RODATA AT > REGION_RODATA_LOAD
132	.init_array : ALIGN_WITH_INPUT {
133	PROVIDE_HIDDEN (__init_array_start = .);
134	KEEP ((SORT(.init_array.)))
135	KEEP (*(.init_array))
136	PROVIDE_HIDDEN (__init_array_end = .);
137	} > REGION_RODATA AT > REGION_RODATA_LOAD
138	.fini_array : ALIGN_WITH_INPUT {
139	PROVIDE_HIDDEN (__fini_array_start = .);
140	KEEP ((SORT(.fini_array.)))
141	KEEP (*(.fini_array))
142	PROVIDE_HIDDEN (__fini_array_end = .);
143	} > REGION_RODATA AT > REGION_RODATA_LOAD
144	.ctors : ALIGN_WITH_INPUT {
145	KEEP (*crtbegin.o(.ctors))
146	KEEP (*crtbegin?.o(.ctors))
147	KEEP ((EXCLUDE_FILE (crtend.o *crtend?.o ) .ctors))
148	KEEP ((SORT(.ctors.)))
149	KEEP (*(.ctors))
150	} > REGION_RODATA AT > REGION_RODATA_LOAD
151	.dtors : ALIGN_WITH_INPUT {
152	KEEP (*crtbegin.o(.dtors))
153	KEEP (*crtbegin?.o(.dtors))
154	KEEP ((EXCLUDE_FILE (crtend.o *crtend?.o ) .dtors))
155	KEEP ((SORT(.dtors.)))
156	KEEP (*(.dtors))
157	} > REGION_RODATA AT > REGION_RODATA_LOAD
158	.jcr : ALIGN_WITH_INPUT {
159	KEEP (*(.jcr))
160	} > REGION_RODATA AT > REGION_RODATA_LOAD
161	.data.rel.ro : ALIGN_WITH_INPUT {
162	(.data.rel.ro.local .gnu.linkonce.d.rel.ro.local.) (.data.rel.ro* .gnu.linkonce.d.rel.ro.*)
163	} > REGION_RODATA AT > REGION_RODATA_LOAD
164	.fixup : ALIGN_WITH_INPUT {
165	*(.fixup)
166	} > REGION_RODATA AT > REGION_RODATA_LOAD
167	.dynamic : ALIGN_WITH_INPUT {
168	*(.dynamic)
169	} > REGION_RODATA AT > REGION_RODATA_LOAD
170	.got1 : ALIGN_WITH_INPUT {
171	*(.got1)
172	} > REGION_RODATA AT > REGION_RODATA_LOAD
173	.got2 : ALIGN_WITH_INPUT {
174	*(.got2)
175	} > REGION_RODATA AT > REGION_RODATA_LOAD
176	.got : ALIGN_WITH_INPUT {
177	*(.got)
178	} > REGION_RODATA AT > REGION_RODATA_LOAD
179	.plt : ALIGN_WITH_INPUT {
180	*(.plt)
181	} > REGION_RODATA AT > REGION_RODATA_LOAD
182	.iplt : ALIGN_WITH_INPUT {
183	*(.iplt)
184	} > REGION_RODATA AT > REGION_RODATA_LOAD
185	.interp : ALIGN_WITH_INPUT {
186	*(.interp)
187	} > REGION_RODATA AT > REGION_RODATA_LOAD
188	.note.gnu.build-id : ALIGN_WITH_INPUT {
189	*(.note.gnu.build-id)
190	} > REGION_RODATA AT > REGION_RODATA_LOAD
191	.hash : ALIGN_WITH_INPUT {
192	*(.hash)
193	} > REGION_RODATA AT > REGION_RODATA_LOAD
194	.gnu.hash : ALIGN_WITH_INPUT {
195	*(.gnu.hash)
196	} > REGION_RODATA AT > REGION_RODATA_LOAD
197	.dynsym : ALIGN_WITH_INPUT {
198	*(.dynsym)
199	} > REGION_RODATA AT > REGION_RODATA_LOAD
200	.dynstr : ALIGN_WITH_INPUT {
201	*(.dynstr)
202	} > REGION_RODATA AT > REGION_RODATA_LOAD
203	.gnu.version : ALIGN_WITH_INPUT {
204	*(.gnu.version)
205	} > REGION_RODATA AT > REGION_RODATA_LOAD
206	.gnu.version_d : ALIGN_WITH_INPUT {
207	*(.gnu.version_d)
208	} > REGION_RODATA AT > REGION_RODATA_LOAD
209	.gnu.version_r : ALIGN_WITH_INPUT {
210	*(.gnu.version_r)
211	} > REGION_RODATA AT > REGION_RODATA_LOAD
212	.rela.dyn : ALIGN_WITH_INPUT {
213	*(.rela.init)
214	(.rela.text .rela.text. .rela.gnu.linkonce.t.*)
215	*(.rela.fini)
216	(.rela.rodata .rela.rodata. .rela.gnu.linkonce.r.*)
217	(.rela.data .rela.data. .rela.gnu.linkonce.d.*)
218	(.rela.tdata .rela.tdata. .rela.gnu.linkonce.td.*)
219	(.rela.tbss .rela.tbss. .rela.gnu.linkonce.tb.*)
220	*(.rela.ctors)
221	*(.rela.dtors)
222	*(.rela.got)
223	*(.rela.got1)
224	*(.rela.got2)
225	(.rela.sdata .rela.sdata. .rela.gnu.linkonce.s.*)
226	(.rela.sbss .rela.sbss. .rela.gnu.linkonce.sb.*)
227	(.rela.sdata2 .rela.sdata2. .rela.gnu.linkonce.s2.*)
228	(.rela.sbss2 .rela.sbss2. .rela.gnu.linkonce.sb2.*)
229	(.rela.bss .rela.bss. .rela.gnu.linkonce.b.*)
230	PROVIDE_HIDDEN (__rel_iplt_start = .);
231	PROVIDE_HIDDEN (__rel_iplt_end = .);
232	PROVIDE_HIDDEN (__rela_iplt_start = .);
233	*(.rela.iplt)
234	PROVIDE_HIDDEN (__rela_iplt_end = .);
235	} > REGION_RODATA AT > REGION_RODATA_LOAD
236	.rela.plt : ALIGN_WITH_INPUT {
237	*(.rela.plt)
238	} > REGION_RODATA AT > REGION_RODATA_LOAD
239	.rtemsroset : ALIGN_WITH_INPUT {
240	/* Special FreeBSD linker set sections */
241	__start_set_sysctl_set = .;
242	(set_sysctl_);
243	__stop_set_sysctl_set = .;
244	(set_domain_);
245	(set_pseudo_);
246
247	KEEP ((SORT(.rtemsroset.)))
248	bsp_section_rodata_end = .;
249	} > REGION_RODATA AT > REGION_RODATA_LOAD
250	bsp_section_rodata_size = bsp_section_rodata_end - bsp_section_rodata_begin;
251	bsp_section_rodata_load_begin = LOADADDR (.rodata);
252	bsp_section_rodata_load_end = bsp_section_rodata_load_begin + bsp_section_rodata_size;
253
254	.rwbarrier : ALIGN_WITH_INPUT {
255	. = ALIGN (bsp_section_rwbarrier_align);
256	} > REGION_DATA AT > REGION_DATA
257
258	.fast_data : ALIGN_WITH_INPUT {
259	bsp_section_fast_data_begin = .;
260	(SORT(.bsp_fast_data))
261	bsp_section_fast_data_end = .;
262	} > REGION_FAST_DATA AT > REGION_FAST_DATA_LOAD
263	bsp_section_fast_data_size = bsp_section_fast_data_end - bsp_section_fast_data_begin;
264	bsp_section_fast_data_load_begin = LOADADDR (.fast_data);
265	bsp_section_fast_data_load_end = bsp_section_fast_data_load_begin + bsp_section_fast_data_size;
266
267	.data : ALIGN_WITH_INPUT {
268	bsp_section_data_begin = .;
269	(SORT(.bsp_data))
270	(.data .data. .gnu.linkonce.d.*)
271	SORT(CONSTRUCTORS)
272	} > REGION_DATA AT > REGION_DATA_LOAD
273	.data1 : ALIGN_WITH_INPUT {
274	*(.data1)
275	} > REGION_DATA AT > REGION_DATA_LOAD
276	.rtemsrwset : ALIGN_WITH_INPUT {
277	KEEP ((SORT(.rtemsrwset.)))
278	} > REGION_DATA AT > REGION_DATA_LOAD
279	.sdata : ALIGN_WITH_INPUT {
280	PROVIDE (_SDA_BASE_ = 32768);
281	(.sdata .sdata. .gnu.linkonce.s.*)
282	bsp_section_data_end = .;
283	} > REGION_DATA AT > REGION_DATA_LOAD
284	bsp_section_data_size = bsp_section_data_end - bsp_section_data_begin;
285	bsp_section_data_load_begin = LOADADDR (.data);
286	bsp_section_data_load_end = bsp_section_data_load_begin + bsp_section_data_size;
287
288	.sbss : ALIGN_WITH_INPUT {
289	bsp_section_sbss_begin = .;
290	*(.dynsbss)
291	(.sbss .sbss. .gnu.linkonce.sb.*)
292	*(.scommon)
293	bsp_section_sbss_end = .;
294	} > REGION_DATA AT > REGION_DATA
295	bsp_section_sbss_size = bsp_section_sbss_end - bsp_section_sbss_begin;
296
297	.bss : ALIGN_WITH_INPUT {
298	bsp_section_bss_begin = .;
299	*(.dynbss)
300	(.bss .bss. .gnu.linkonce.b.*)
301	*(COMMON)
302	bsp_section_bss_end = .;
303	} > REGION_BSS AT > REGION_BSS
304	bsp_section_bss_size = bsp_section_bss_end - bsp_section_bss_begin;
305
306	.rwextra : ALIGN_WITH_INPUT {
307	bsp_section_rwextra_begin = .;
308	*(.bsp_rwextra)
309	bsp_section_rwextra_end = .;
310	} > REGION_RWEXTRA AT > REGION_RWEXTRA
311	bsp_section_rwextra_size = bsp_section_rwextra_end - bsp_section_rwextra_begin;
312
313	.work : ALIGN_WITH_INPUT {
314	/*
315	* The work section will occupy the remaining REGION_WORK region and
316	* contains the RTEMS work space and heap.
317	*/
318	bsp_section_work_begin = .;
319	. += ORIGIN (REGION_WORK) + LENGTH (REGION_WORK) - ABSOLUTE (.);
320	bsp_section_work_end = .;
321	} > REGION_WORK AT > REGION_WORK
322	bsp_section_work_size = bsp_section_work_end - bsp_section_work_begin;
323
324	.stack : ALIGN_WITH_INPUT {
325	/*
326	* The stack section will occupy the remaining REGION_STACK region and may
327	* contain the task stacks. Depending on the region distribution this
328	* section may be of zero size.
329	*/
330	bsp_section_stack_begin = .;
331	. += ORIGIN (REGION_STACK) + LENGTH (REGION_STACK) - ABSOLUTE (.);
332	bsp_section_stack_end = .;
333	} > REGION_STACK AT > REGION_STACK
334	bsp_section_stack_size = bsp_section_stack_end - bsp_section_stack_begin;
335
336	.nocache : ALIGN_WITH_INPUT {
337	bsp_section_nocache_begin = .;
338	(SORT(.bsp_nocache))
339	bsp_section_nocache_end = .;
340	} > REGION_NOCACHE AT > REGION_NOCACHE_LOAD
341	bsp_section_nocache_size = bsp_section_nocache_end - bsp_section_nocache_begin;
342	bsp_section_nocache_load_begin = LOADADDR (.nocache);
343	bsp_section_nocache_load_end = bsp_section_nocache_load_begin + bsp_section_nocache_size;
344
345	.nocachenoload (NOLOAD) : ALIGN_WITH_INPUT {
346	bsp_section_nocachenoload_begin = .;
347	(SORT(.bsp_noload_nocache))
348	bsp_section_nocacheheap_begin = .;
349	. += ORIGIN (REGION_NOCACHE) + LENGTH (REGION_NOCACHE) - ABSOLUTE (.);
350	bsp_section_nocacheheap_end = .;
351	bsp_section_nocachenoload_end = .;
352	} > REGION_NOCACHE AT > REGION_NOCACHE
353	bsp_section_nocacheheap_size = bsp_section_nocacheheap_end - bsp_section_nocacheheap_begin;
354	bsp_section_nocachenoload_size = bsp_section_nocachenoload_end - bsp_section_nocachenoload_begin;
355
356	.nvram (NOLOAD) : ALIGN_WITH_INPUT {
357	bsp_section_nvram_begin = .;
358	(SORT(.bsp_nvram))
359	bsp_section_nvram_end = .;
360	} > REGION_NVRAM AT > REGION_NVRAM
361	bsp_section_nvram_size = bsp_section_nvram_end - bsp_section_nvram_begin;
362
363	/* FIXME */
364	RamBase = ORIGIN (REGION_WORK);
365	RamSize = LENGTH (REGION_WORK);
366	WorkAreaBase = bsp_section_work_begin;
367	HeapSize = 0;
368
369	/* Stabs debugging sections. */
370	.stab 0 : { *(.stab) }
371	.stabstr 0 : { *(.stabstr) }
372	.stab.excl 0 : { *(.stab.excl) }
373	.stab.exclstr 0 : { *(.stab.exclstr) }
374	.stab.index 0 : { *(.stab.index) }
375	.stab.indexstr 0 : { *(.stab.indexstr) }
376	.comment 0 : { *(.comment) }
377	/* DWARF debug sections.
378	Symbols in the DWARF debugging sections are relative to the beginning
379	of the section so we begin them at 0. */
380	/* DWARF 1 */
381	.debug 0 : { *(.debug) }
382	.line 0 : { *(.line) }
383	/* GNU DWARF 1 extensions */
384	.debug_srcinfo 0 : { *(.debug_srcinfo) }
385	.debug_sfnames 0 : { *(.debug_sfnames) }
386	/* DWARF 1.1 and DWARF 2 */
387	.debug_aranges 0 : { *(.debug_aranges) }
388	.debug_pubnames 0 : { *(.debug_pubnames) }
389	/* DWARF 2 */
390	.debug_info 0 : { (.debug_info .gnu.linkonce.wi.) }
391	.debug_abbrev 0 : { *(.debug_abbrev) }
392	.debug_line 0 : { (.debug_line .debug_line. .debug_line_end ) }
393	.debug_frame 0 : { *(.debug_frame) }
394	.debug_str 0 : { *(.debug_str) }
395	.debug_loc 0 : { *(.debug_loc) }
396	.debug_macinfo 0 : { *(.debug_macinfo) }
397	/* SGI/MIPS DWARF 2 extensions */
398	.debug_weaknames 0 : { *(.debug_weaknames) }
399	.debug_funcnames 0 : { *(.debug_funcnames) }
400	.debug_typenames 0 : { *(.debug_typenames) }
401	.debug_varnames 0 : { *(.debug_varnames) }
402	/* DWARF 3 */
403	.debug_pubtypes 0 : { *(.debug_pubtypes) }
404	.debug_ranges 0 : { *(.debug_ranges) }
405	/* DWARF Extension. */
406	.debug_macro 0 : { *(.debug_macro) }
407	.gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }
408	.PPC.EMB.apuinfo 0 : { *(.PPC.EMB.apuinfo) }
409	/DISCARD/ : { (.note.GNU-stack) (.gnu_debuglink) (.gnu.lto_) }
410
411	/*
412	* This is a RTEMS specific section to catch all unexpected input
413	* sections. In case you get an error like
414	* "section `.unexpected_sections' will not fit in region
415	* `UNEXPECTED_SECTIONS'"
416	* you have to figure out the offending input section and add it to the
417	* appropriate output section definition above.
418	*/
419	.unexpected_sections : { () } > UNEXPECTED_SECTIONS
420	}

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