source: trunk/binutils/ld/scripttempl/iq2000.sc@ 2771

Last change on this file since 2771 was 607, checked in by bird, 22 years ago

Initial revision
  • Property cvs2svn:cvs-rev set to 1.1
  • Property svn:eol-style set to native
  • Property svn:executable set to *
File size: 14.2 KB
Line 
1#
2# Unusual variables checked by this code:
3# NOP - four byte opcode for no-op (defaults to 0)
4# DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
5# INITIAL_READONLY_SECTIONS - at start of data segment
6# OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
7# (e.g., .PARISC.milli)
8# OTHER_TEXT_SECTIONS - these get put in .text when relocating
9# OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
10# (e.g., .PARISC.global)
11# OTHER_BSS_SECTIONS - other than .bss .sbss ...
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_GOT_SYMBOLS - symbols defined just before .got.
20# OTHER_GOT_SECTIONS - sections just after .got.
21# OTHER_SDATA_SECTIONS - sections just after .sdata.
22# OTHER_BSS_SYMBOLS - symbols that appear at the start of the
23# .bss section besides __bss_start.
24# DATA_PLT - .plt should be in data segment, not text segment.
25# BSS_PLT - .plt should be in bss segment
26# TEXT_DYNAMIC - .dynamic in text segment, not data segment.
27# EMBEDDED - whether this is for an embedded system.
28# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
29# start address of shared library.
30# INPUT_FILES - INPUT command of files to always include
31# WRITABLE_RODATA - if set, the .rodata section should be writable
32# INIT_START, INIT_END - statements just before and just after
33# combination of .init sections.
34# FINI_START, FINI_END - statements just before and just after
35# combination of .fini sections.
36#
37# When adding sections, do note that the names of some sections are used
38# when specifying the start address of the next.
39#
40
41# Many sections come in three flavours. There is the 'real' section,
42# like ".data". Then there are the per-procedure or per-variable
43# sections, generated by -ffunction-sections and -fdata-sections in GCC,
44# and useful for --gc-sections, which for a variable "foo" might be
45# ".data.foo". Then there are the linkonce sections, for which the linker
46# eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
47# The exact correspondences are:
48#
49# Section Linkonce section
50# .text .gnu.linkonce.t.foo
51# .rodata .gnu.linkonce.r.foo
52# .data .gnu.linkonce.d.foo
53# .bss .gnu.linkonce.b.foo
54# .sdata .gnu.linkonce.s.foo
55# .sbss .gnu.linkonce.sb.foo
56# .sdata2 .gnu.linkonce.s2.foo
57# .sbss2 .gnu.linkonce.sb2.foo
58#
59# Each of these can also have corresponding .rel.* and .rela.* sections.
60
61test -z "$ENTRY" && ENTRY=_start
62test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
63test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
64if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
65test -z "${ELFSIZE}" && ELFSIZE=32
66test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
67test "$LD_FLAG" = "N" && DATA_ADDR=.
68INTERP=".interp ${RELOCATING-0} : { *(.interp) }"
69PLT=".plt ${RELOCATING-0} : { *(.plt) }"
70DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
71RODATA=".rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} }"
72SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) ${RELOCATING+*(.sbss2.*)} ${RELOCATING+*(.gnu.linkonce.sb2.*)} }"
73SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) ${RELOCATING+*(.sdata2.*)} ${RELOCATING+*(.gnu.linkonce.s2.*)} }"
74CTOR=".ctors ${CONSTRUCTING-0} :
75 {
76 ${CONSTRUCTING+${CTOR_START}}
77 /* gcc uses crtbegin.o to find the start of
78 the constructors, so we make sure it is
79 first. Because this is a wildcard, it
80 doesn't matter if the user does not
81 actually link against crtbegin.o; the
82 linker won't look for a file to match a
83 wildcard. The wildcard also means that it
84 doesn't matter which directory crtbegin.o
85 is in. */
86
87 KEEP (*crtbegin*.o(.ctors))
88
89 /* We don't want to include the .ctor section from
90 from the crtend.o file until after the sorted ctors.
91 The .ctor section from the crtend file contains the
92 end of ctors marker and it must be last */
93
94 KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .ctors))
95 KEEP (*(SORT(.ctors.*)))
96 KEEP (*(.ctors))
97 ${CONSTRUCTING+${CTOR_END}}
98 }"
99
100DTOR=" .dtors ${CONSTRUCTING-0} :
101 {
102 ${CONSTRUCTING+${DTOR_START}}
103 KEEP (*crtbegin*.o(.dtors))
104 KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .dtors))
105 KEEP (*(SORT(.dtors.*)))
106 KEEP (*(.dtors))
107 ${CONSTRUCTING+${DTOR_END}}
108 }"
109
110# if this is for an embedded system, don't add SIZEOF_HEADERS.
111if [ -z "$EMBEDDED" ]; then
112 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
113else
114 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
115fi
116
117cat <<EOF
118OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
119 "${LITTLE_OUTPUT_FORMAT}")
120OUTPUT_ARCH(${OUTPUT_ARCH})
121ENTRY(${ENTRY})
122
123${RELOCATING+${LIB_SEARCH_DIRS}}
124${RELOCATING+/* Do we need any of these for elf?
125 __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
126${RELOCATING+${EXECUTABLE_SYMBOLS}}
127${RELOCATING+${INPUT_FILES}}
128${RELOCATING- /* For some reason, the Solaris linker makes bad executables
129 if gld -r is used and the intermediate file has sections starting
130 at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
131 bug. But for now assigning the zero vmas works. */}
132
133SECTIONS
134{
135 ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
136 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
137 ${CREATE_SHLIB-${INTERP}}
138 ${TEXT_DYNAMIC+${DYNAMIC}}
139
140EOF
141if [ "x$COMBRELOC" = x ]; then
142 COMBRELOCCAT=cat
143else
144 COMBRELOCCAT="cat > $COMBRELOC"
145fi
146eval $COMBRELOCCAT <<EOF
147 .rel.init ${RELOCATING-0} : { *(.rel.init) }
148 .rela.init ${RELOCATING-0} : { *(.rela.init) }
149 .rel.text ${RELOCATING-0} :
150 {
151 *(.rel.text)
152 ${RELOCATING+*(.rel.text.*)}
153 ${RELOCATING+*(.rel.gnu.linkonce.t.*)}
154 }
155 .rela.text ${RELOCATING-0} :
156 {
157 *(.rela.text)
158 ${RELOCATING+*(.rela.text.*)}
159 ${RELOCATING+*(.rela.gnu.linkonce.t.*)}
160 }
161 .rel.fini ${RELOCATING-0} : { *(.rel.fini) }
162 .rela.fini ${RELOCATING-0} : { *(.rela.fini) }
163 .rel.rodata ${RELOCATING-0} :
164 {
165 *(.rel.rodata)
166 ${RELOCATING+*(.rel.rodata.*)}
167 ${RELOCATING+*(.rel.gnu.linkonce.r.*)}
168 }
169 .rela.rodata ${RELOCATING-0} :
170 {
171 *(.rela.rodata)
172 ${RELOCATING+*(.rela.rodata.*)}
173 ${RELOCATING+*(.rela.gnu.linkonce.r.*)}
174 }
175 ${OTHER_READONLY_RELOC_SECTIONS}
176 .rel.data ${RELOCATING-0} :
177 {
178 *(.rel.data)
179 ${RELOCATING+*(.rel.data.*)}
180 ${RELOCATING+*(.rel.gnu.linkonce.d.*)}
181 }
182 .rela.data ${RELOCATING-0} :
183 {
184 *(.rela.data)
185 ${RELOCATING+*(.rela.data.*)}
186 ${RELOCATING+*(.rela.gnu.linkonce.d.*)}
187 }
188 .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
189 .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
190 .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
191 .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
192 .rel.got ${RELOCATING-0} : { *(.rel.got) }
193 .rela.got ${RELOCATING-0} : { *(.rela.got) }
194 ${OTHER_GOT_RELOC_SECTIONS}
195 .rel.sdata ${RELOCATING-0} :
196 {
197 *(.rel.sdata)
198 ${RELOCATING+*(.rel.sdata.*)}
199 ${RELOCATING+*(.rel.gnu.linkonce.s.*)}
200 }
201 .rela.sdata ${RELOCATING-0} :
202 {
203 *(.rela.sdata)
204 ${RELOCATING+*(.rela.sdata.*)}
205 ${RELOCATING+*(.rela.gnu.linkonce.s.*)}
206 }
207 .rel.sbss ${RELOCATING-0} :
208 {
209 *(.rel.sbss)
210 ${RELOCATING+*(.rel.sbss.*)}
211 ${RELOCATING+*(.rel.gnu.linkonce.sb.*)}
212 }
213 .rela.sbss ${RELOCATING-0} :
214 {
215 *(.rela.sbss)
216 ${RELOCATING+*(.rela.sbss.*)}
217 ${RELOCATING+*(.rela.gnu.linkonce.sb.*)}
218 }
219 .rel.sdata2 ${RELOCATING-0} :
220 {
221 *(.rel.sdata2)
222 ${RELOCATING+*(.rel.sdata2.*)}
223 ${RELOCATING+*(.rel.gnu.linkonce.s2.*)}
224 }
225 .rela.sdata2 ${RELOCATING-0} :
226 {
227 *(.rela.sdata2)
228 ${RELOCATING+*(.rela.sdata2.*)}
229 ${RELOCATING+*(.rela.gnu.linkonce.s2.*)}
230 }
231 .rel.sbss2 ${RELOCATING-0} :
232 {
233 *(.rel.sbss2)
234 ${RELOCATING+*(.rel.sbss2.*)}
235 ${RELOCATING+*(.rel.gnu.linkonce.sb2.*)}
236 }
237 .rela.sbss2 ${RELOCATING-0} :
238 {
239 *(.rela.sbss2)
240 ${RELOCATING+*(.rela.sbss2.*)}
241 ${RELOCATING+*(.rela.gnu.linkonce.sb2.*)}
242 }
243 .rel.bss ${RELOCATING-0} :
244 {
245 *(.rel.bss)
246 ${RELOCATING+*(.rel.bss.*)}
247 ${RELOCATING+*(.rel.gnu.linkonce.b.*)}
248 }
249 .rela.bss ${RELOCATING-0} :
250 {
251 *(.rela.bss)
252 ${RELOCATING+*(.rela.bss.*)}
253 ${RELOCATING+*(.rela.gnu.linkonce.b.*)}
254 }
255EOF
256if [ -n "$COMBRELOC" ]; then
257cat <<EOF
258 .rel.dyn :
259 {
260EOF
261sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
262cat <<EOF
263 }
264 .rela.dyn :
265 {
266EOF
267sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
268cat <<EOF
269 }
270EOF
271fi
272cat <<EOF
273 .rel.plt ${RELOCATING-0} : { *(.rel.plt) }
274 .rela.plt ${RELOCATING-0} : { *(.rela.plt) }
275 ${OTHER_PLT_RELOC_SECTIONS}
276
277 .init ${RELOCATING-0} :
278 {
279 ${RELOCATING+${INIT_START}}
280 KEEP (*(.init))
281 ${RELOCATING+${INIT_END}}
282 } =${NOP-0}
283
284 ${DATA_PLT-${BSS_PLT-${PLT}}}
285 .text ${RELOCATING-0} :
286 {
287 ${RELOCATING+${TEXT_START_SYMBOLS}}
288 *(.text)
289 ${RELOCATING+*(.text.*)}
290 *(.stub)
291 /* .gnu.warning sections are handled specially by elf32.em. */
292 *(.gnu.warning)
293 ${RELOCATING+*(.gnu.linkonce.t.*)}
294 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
295 } =${NOP-0}
296 .fini ${RELOCATING-0} :
297 {
298 ${RELOCATING+${FINI_START}}
299 KEEP (*(.fini))
300 ${RELOCATING+${FINI_END}}
301 } =${NOP-0}
302 ${RELOCATING+PROVIDE (__etext = .);}
303 ${RELOCATING+PROVIDE (_etext = .);}
304 ${RELOCATING+PROVIDE (etext = .);}
305
306 /* Adjust the address for the data segment. We want to adjust up to
307 the same address within the page on the next page up. */
308 ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
309 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
310
311 .data ${RELOCATING-0} :
312 {
313 ${RELOCATING+${DATA_START_SYMBOLS}}
314 *(.data)
315 ${RELOCATING+*(.data.*)}
316 ${RELOCATING+*(.gnu.linkonce.d.*)}
317 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
318 }
319 .data1 ${RELOCATING-0} : { *(.data1) }
320 .eh_frame ${RELOCATING-0} :
321 {
322 ${RELOCATING+PROVIDE (__eh_frame_begin = .);}
323 *(.eh_frame)
324 LONG (0);
325 ${RELOCATING+PROVIDE (__eh_frame_end = .);}
326 } ${RELOCATING+}
327 .gcc_except_table : { *(.gcc_except_table) }
328 ${INITIAL_READONLY_SECTIONS}
329 .hash ${RELOCATING-0} : { *(.hash) }
330 .dynsym ${RELOCATING-0} : { *(.dynsym) }
331 .dynstr ${RELOCATING-0} : { *(.dynstr) }
332 .gnu.version ${RELOCATING-0} : { *(.gnu.version) }
333 .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) }
334 .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) }
335 ${RODATA}
336 .rodata1 ${RELOCATING-0} : { *(.rodata1) }
337 ${CREATE_SHLIB-${SDATA2}}
338 ${CREATE_SHLIB-${SBSS2}}
339 ${RELOCATING+${OTHER_READONLY_SECTIONS}}
340 ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
341 ${TEXT_DYNAMIC-${DYNAMIC}}
342 ${RELOCATING+${CTOR}}
343 ${RELOCATING+${DTOR}}
344 .jcr : { KEEP (*(.jcr)) }
345 ${DATA_PLT+${PLT}}
346 ${RELOCATING+${OTHER_GOT_SYMBOLS}}
347 .got ${RELOCATING-0} : { *(.got.plt) *(.got) }
348 ${RELOCATING+${OTHER_GOT_SECTIONS}}
349 ${CREATE_SHLIB+${SDATA2}}
350 ${CREATE_SHLIB+${SBSS2}}
351 /* We want the small data sections together, so single-instruction offsets
352 can access them all, and initialized data all before uninitialized, so
353 we can shorten the on-disk segment size. */
354 .sdata ${RELOCATING-0} :
355 {
356 ${RELOCATING+${SDATA_START_SYMBOLS}}
357 *(.sdata)
358 ${RELOCATING+*(.sdata.*)}
359 ${RELOCATING+*(.gnu.linkonce.s.*)}
360 }
361 ${RELOCATING+${OTHER_SDATA_SECTIONS}}
362 ${RELOCATING+_edata = .;}
363 ${RELOCATING+PROVIDE (edata = .);}
364 ${RELOCATING+__bss_start = .;}
365 ${RELOCATING+${OTHER_BSS_SYMBOLS}}
366 .sbss ${RELOCATING-0} :
367 {
368 ${RELOCATING+PROVIDE (__sbss_start = .);}
369 ${RELOCATING+PROVIDE (___sbss_start = .);}
370 *(.dynsbss)
371 *(.sbss)
372 ${RELOCATING+*(.sbss.*)}
373 ${RELOCATING+*(.gnu.linkonce.sb.*)}
374 *(.scommon)
375 ${RELOCATING+PROVIDE (__sbss_end = .);}
376 ${RELOCATING+PROVIDE (___sbss_end = .);}
377 }
378 ${BSS_PLT+${PLT}}
379 .bss ${RELOCATING-0} :
380 {
381 *(.dynbss)
382 *(.bss)
383 ${RELOCATING+*(.bss.*)}
384 ${RELOCATING+*(.gnu.linkonce.b.*)}
385 *(COMMON)
386 /* Align here to ensure that the .bss section occupies space up to
387 _end. Align after .bss to ensure correct alignment even if the
388 .bss section disappears because there are no input sections. */
389 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
390 }
391 ${RELOCATING+${OTHER_BSS_SECTIONS}}
392 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
393 ${RELOCATING+_end = .;}
394 ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
395 ${RELOCATING+PROVIDE (end = .);}
396
397 /* Stabs debugging sections. */
398 .stab 0 : { *(.stab) }
399 .stabstr 0 : { *(.stabstr) }
400 .stab.excl 0 : { *(.stab.excl) }
401 .stab.exclstr 0 : { *(.stab.exclstr) }
402 .stab.index 0 : { *(.stab.index) }
403 .stab.indexstr 0 : { *(.stab.indexstr) }
404
405 .comment 0 : { *(.comment) }
406
407 /* DWARF debug sections.
408 Symbols in the DWARF debugging sections are relative to the beginning
409 of the section so we begin them at 0. */
410
411 /* DWARF 1 */
412 .debug 0 : { *(.debug) }
413 .line 0 : { *(.line) }
414
415 /* GNU DWARF 1 extensions */
416 .debug_srcinfo 0 : { *(.debug_srcinfo) }
417 .debug_sfnames 0 : { *(.debug_sfnames) }
418
419 /* DWARF 1.1 and DWARF 2 */
420 .debug_aranges 0 : { *(.debug_aranges) }
421 .debug_pubnames 0 : { *(.debug_pubnames) }
422
423 /* DWARF 2 */
424 .debug_info 0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
425 .debug_abbrev 0 : { *(.debug_abbrev) }
426 .debug_line 0 : { *(.debug_line) }
427 .debug_frame 0 : { *(.debug_frame) }
428 .debug_str 0 : { *(.debug_str) }
429 .debug_loc 0 : { *(.debug_loc) }
430 .debug_macinfo 0 : { *(.debug_macinfo) }
431
432 /* SGI/MIPS DWARF 2 extensions */
433 .debug_weaknames 0 : { *(.debug_weaknames) }
434 .debug_funcnames 0 : { *(.debug_funcnames) }
435 .debug_typenames 0 : { *(.debug_typenames) }
436 .debug_varnames 0 : { *(.debug_varnames) }
437
438 ${RELOCATING+${OTHER_RELOCATING_SECTIONS}}
439
440 /* These must appear regardless of ${RELOCATING}. */
441 ${OTHER_SECTIONS}
442}
443EOF
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