1 //===========================================================================
3 // MLT linker script for MIPS TX49
5 //===========================================================================
6 //####ECOSGPLCOPYRIGHTBEGIN####
7 // -------------------------------------------
8 // This file is part of eCos, the Embedded Configurable Operating System.
9 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
11 // eCos is free software; you can redistribute it and/or modify it under
12 // the terms of the GNU General Public License as published by the Free
13 // Software Foundation; either version 2 or (at your option) any later version.
15 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
16 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
17 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
20 // You should have received a copy of the GNU General Public License along
21 // with eCos; if not, write to the Free Software Foundation, Inc.,
22 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
24 // As a special exception, if other files instantiate templates or use macros
25 // or inline functions from this file, or you compile this file and link it
26 // with other works to produce a work based on this file, this file does not
27 // by itself cause the resulting work to be covered by the GNU General Public
28 // License. However the source code for this file must still be made available
29 // in accordance with section (3) of the GNU General Public License.
31 // This exception does not invalidate any other reasons why a work based on
32 // this file might be covered by the GNU General Public License.
34 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
35 // at http://sources.redhat.com/ecos/ecos-license/
36 // -------------------------------------------
37 //####ECOSGPLCOPYRIGHTEND####
38 //===========================================================================
40 #include <pkgconf/system.h>
42 OUTPUT_FORMAT("elf32-bigmips", "elf32-bigmips",
44 /* The preprocessor defines mips, but we know we're mips :-) */
46 OUTPUT_ARCH(mips:4000)
54 GROUP(libtarget.a libgcc.a libsupc++.a)
56 GROUP(libtarget.a libgcc.a)
59 /* FIXME: The MLT should pass in the required alignment since it must be
60 * the same as the VMA's alignment. As a result of this bug, all the REF4955
61 * ROM mlt files have alignment 8, when some should have alignment 4
65 #define FOLLOWING(_section_) AT ((LOADADDR (_section_) + SIZEOF (_section_) + ALIGN_LMA - 1) & ~ (ALIGN_LMA - 1))
67 #define FORCE_OUTPUT . = .
69 #define SECTIONS_BEGIN
71 #if defined(CYG_HAL_STARTUP_RAM)
73 /* this version for RAM startup */
74 #define SECTION_rom_vectors(_region_, _vma_, _lma_) \
75 .rom_vectors _vma_ : _lma_ \
76 { KEEP (*(.utlb_vector)) \
77 . = ALIGN(0x80); KEEP(*(.other_vector)) \
78 /* debug and reset vector not used in RAM version */ \
79 KEEP(*(.debug_vector)) \
80 KEEP (*(.reset_vector)) } \
83 #elif defined(CYG_HAL_STARTUP_ROM)
85 /* this version for ROM startup */
86 #define SECTION_rom_vectors(_region_, _vma_, _lma_) \
87 .rom_vectors _vma_ : _lma_ \
88 { KEEP (*(.reset_vector)) \
89 . = ALIGN(0x200); KEEP (*(.utlb_vector)) \
90 . = ALIGN(0x100); . = . + 4; \
91 . = ALIGN(0x80); KEEP(*(.other_vector)) \
92 . = ALIGN(0x100); KEEP(*(.debug_vector)) } \
95 #endif /* ROM startup version of ROM vectors */
97 #define SECTION_ROMISC(_region_, _vma_, _lma_) \
98 .interp _vma_ : _lma_ { *(.interp) } > _region_ \
99 .hash : FOLLOWING(.interp) { *(.hash) } > _region_ \
100 .dynsym : FOLLOWING(.hash) { *(.dynsym) } > _region_ \
101 .dynstr : FOLLOWING(.dynsym) { *(.dynstr) } > _region_ \
102 .gnu.version : FOLLOWING(.dynstr) { *(.gnu.version) } > _region_ \
103 .gnu.version_d : FOLLOWING(.gnu.version) { *(.gnu.version_d) } > _region_ \
104 .gnu.version_r : FOLLOWING(.gnu.version_d) { *(.gnu.version_r) } > _region_ \
105 .plt : FOLLOWING(.gnu.version_r) { *(.plt) } > _region_
107 #define SECTION_RELOCS(_region_, _vma_, _lma_) \
112 *(.rel.gnu.linkonce.t*) \
118 *(.rela.gnu.linkonce.t*) \
124 *(.rel.gnu.linkonce.d*) \
130 *(.rela.gnu.linkonce.d*) \
136 *(.rel.gnu.linkonce.r*) \
142 *(.rela.gnu.linkonce.r*) \
144 .rel.got : { *(.rel.got) } > _region_ \
145 .rela.got : { *(.rela.got) } > _region_ \
146 .rel.ctors : { *(.rel.ctors) } > _region_ \
147 .rela.ctors : { *(.rela.ctors) } > _region_ \
148 .rel.dtors : { *(.rel.dtors) } > _region_ \
149 .rela.dtors : { *(.rela.dtors) } > _region_ \
150 .rel.init : { *(.rel.init) } > _region_ \
151 .rela.init : { *(.rela.init) } > _region_ \
152 .rel.fini : { *(.rel.fini) } > _region_ \
153 .rela.fini : { *(.rela.fini) } > _region_ \
154 .rel.bss : { *(.rel.bss) } > _region_ \
155 .rela.bss : { *(.rela.bss) } > _region_ \
156 .rel.plt : { *(.rel.plt) } > _region_ \
157 .rela.plt : { *(.rela.plt) } > _region_ \
158 .rel.dyn : { *(.rel.dyn) } > _region_
160 #define SECTION_init(_region_, _vma_, _lma_) \
161 .init _vma_ : _lma_ \
163 FORCE_OUTPUT; KEEP (*(.init)) \
166 #define SECTION_text(_region_, _vma_, _lma_) \
167 .text _vma_ : _lma_ \
169 _stext = .; _ftext = . ; \
174 *(.gnu.linkonce.t*) \
175 *(.mips16.fn.*) *(.mips16.call.*) \
177 _etext = .; PROVIDE (etext = .);
179 #define SECTION_fini(_region_, _vma_, _lma_) \
180 .fini _vma_ : _lma_ \
182 FORCE_OUTPUT; KEEP (*(.fini)) \
185 #define SECTION_rodata(_region_, _vma_, _lma_) \
186 .rodata _vma_ : _lma_ \
188 FORCE_OUTPUT; *(.rodata) *(.rodata.*) *(.gnu.linkonce.r*) \
191 #define SECTION_rodata1(_region_, _vma_, _lma_) \
192 .rodata1 _vma_ : _lma_ \
194 FORCE_OUTPUT; *(.rodata1) *(.rodata1.*) \
197 #define SECTION_vsr_table(_region_, _vma_, _lma_) \
198 .vsr_table _vma_ : _lma_ \
200 FORCE_OUTPUT; *(.vsr_table) \
203 #define SECTION_data(_region_, _vma_, _lma_) \
204 .data _vma_ : _lma_ \
206 __ram_data_start = ABSOLUTE (.); _fdata = . ; \
207 *(.data) *(.data.*) *(.gnu.linkonce.d*) \
212 __rom_data_start = LOADADDR(.data);
214 #define SECTION_data1(_region_, _vma_, _lma_) \
215 .data1 _vma_ : _lma_ \
217 FORCE_OUTPUT; *(.data1) *(.data1.*) \
220 #define SECTION_eh_frame(_region_, _vma_, _lma_) \
221 .eh_frame _vma_ : _lma_ \
223 FORCE_OUTPUT; *(.eh_frame) \
226 #define SECTION_gcc_except_table(_region_, _vma_, _lma_) \
227 .gcc_except_table _vma_ : _lma_ \
229 FORCE_OUTPUT; *(.gcc_except_table) \
233 /* FIXME: We shouldn't need to define __CTOR_LIST__/__CTOR_END__
234 and __DTOR_LIST__/__DTOR_END__ except by the PROVIDE lines.
235 However this doesn't work for old (99r1-era) toolchains, so
238 /* The KEEP(*_ctors.o(.ctors)) rule is included to prevent
239 constructors from libgcc.a from turning up in the image.
240 They are NULL anyway. */
242 #define SECTION_ctors(_region_, _vma_, _lma_) \
243 .ctors _vma_ : _lma_ \
246 KEEP (*crtbegin.o(.ctors)) \
247 KEEP (*_ctors.o(.ctors)) \
249 PROVIDE (__CTOR_LIST__ = .); \
251 KEEP (*(SORT(.ctors.*))) \
253 PROVIDE (__CTOR_END__ = .); \
256 #define SECTION_dtors(_region_, _vma_, _lma_) \
257 .dtors _vma_ : _lma_ \
260 KEEP (*crtbegin.o(.dtors)) \
262 PROVIDE (__DTOR_LIST__ = .); \
263 KEEP (*(SORT(.dtors.*))) \
266 PROVIDE (__DTOR_END__ = .); \
269 #define SECTION_devtab(_region_, _vma_, _lma_) \
270 .devtab _vma_ : _lma_ \
273 KEEP(*( SORT (.ecos.table.*))) ; \
276 #define SECTION_got(_region_, _vma_, _lma_) \
277 _gp = ALIGN(16) + 0x7ff0; \
280 FORCE_OUTPUT; *(.got.plt) *(.got) \
283 #define SECTION_dynamic(_region_, _vma_, _lma_) \
284 .dynamic _vma_ : _lma_ \
286 FORCE_OUTPUT; *(.dynamic) \
289 /* We want the small data sections together, so single-instruction offsets
290 can access them all, and initialized data all before uninitialized, so
291 we can shorten the on-disk segment size. */
293 #define SECTION_sdata(_region_, _vma_, _lma_) \
294 .sdata _vma_ : _lma_ \
296 FORCE_OUTPUT; *(.sdata) *(.sdata.*) *(.gnu.linkonce.s*) \
299 #define SECTION_lit8(_region_, _vma_, _lma_) \
300 .lit8 _vma_ : _lma_ \
302 FORCE_OUTPUT; *(.lit8) \
305 #define SECTION_lit4(_region_, _vma_, _lma_) \
306 .lit4 : FOLLOWING(.lit8) \
308 FORCE_OUTPUT; *(.lit4) \
310 __ram_data_end = .; _edata = . ; \
313 #define SECTION_sbss(_region_, _vma_, _lma_) \
314 __bss_start = .; _fbss = .; \
315 .sbss _vma_ : _lma_ \
317 FORCE_OUTPUT; *(.dynsbss) *(.sbss) *(.sbss.*) *(.scommon) \
320 #define SECTION_bss(_region_, _vma_, _lma_) \
323 *(.dynbss) *(.bss) *(.bss.*) *(COMMON) \
327 /* The /DISCARD/ section ensures that the output will not contain a
328 * .mdebug section as it confuses GDB. This is a workaround for CR 100804.
331 #define SECTIONS_END . = ALIGN(4); _end = .; PROVIDE (end = .); \
332 /* Stabs debugging sections. */ \
333 .stab 0 : { *(.stab) } \
334 .stabstr 0 : { *(.stabstr) } \
335 .stab.excl 0 : { *(.stab.excl) } \
336 .stab.exclstr 0 : { *(.stab.exclstr) } \
337 .stab.index 0 : { *(.stab.index) } \
338 .stab.indexstr 0 : { *(.stab.indexstr) } \
339 .comment 0 : { *(.comment) } \
340 /* DWARF debug sections. \
341 Symbols in the DWARF debugging sections are relative to \
342 the beginning of the section so we begin them at 0. */ \
344 .debug 0 : { *(.debug) } \
345 .line 0 : { *(.line) } \
346 /* GNU DWARF 1 extensions */ \
347 .debug_srcinfo 0 : { *(.debug_srcinfo) } \
348 .debug_sfnames 0 : { *(.debug_sfnames) } \
349 /* DWARF 1.1 and DWARF 2 */ \
350 .debug_aranges 0 : { *(.debug_aranges) } \
351 .debug_pubnames 0 : { *(.debug_pubnames) } \
353 .debug_info 0 : { *(.debug_info) } \
354 .debug_abbrev 0 : { *(.debug_abbrev) } \
355 .debug_line 0 : { *(.debug_line) } \
356 .debug_frame 0 : { *(.debug_frame) } \
357 .debug_str 0 : { *(.debug_str) } \
358 .debug_loc 0 : { *(.debug_loc) } \
359 .debug_macinfo 0 : { *(.debug_macinfo) } \
360 /* SGI/MIPS DWARF 2 extensions */ \
361 .debug_weaknames 0 : { *(.debug_weaknames) } \
362 .debug_funcnames 0 : { *(.debug_funcnames) } \
363 .debug_typenames 0 : { *(.debug_typenames) } \
364 .debug_varnames 0 : { *(.debug_varnames) } \
365 /* These must appear regardless of . */ \
366 .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) } \
367 .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) } \
368 /DISCARD/ 0 : { *(.mdebug) }
370 #include CYGHWR_MEMORY_LAYOUT_LDI
372 // 0-0x200 reserved for vectors
373 hal_vsr_table = 0x80000200;
374 hal_virtual_vector_table = 0x80000300;