constify to_open
[deliverable/binutils-gdb.git] / ld / scripttempl / iq2000.sc
... / ...
CommitLineData
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_SECTIONS - at the end
12# EXECUTABLE_SYMBOLS - symbols that must be defined for an
13# executable (e.g., _DYNAMIC_LINK)
14# TEXT_START_SYMBOLS - symbols that appear at the start of the
15# .text section.
16# DATA_START_SYMBOLS - symbols that appear at the start of the
17# .data section.
18# OTHER_GOT_SYMBOLS - symbols defined just before .got.
19# OTHER_GOT_SECTIONS - sections just after .got.
20# OTHER_SDATA_SECTIONS - sections just after .sdata.
21# OTHER_BSS_SYMBOLS - symbols that appear at the start of the
22# .bss section besides __bss_start.
23# DATA_PLT - .plt should be in data segment, not text segment.
24# BSS_PLT - .plt should be in bss segment
25# TEXT_DYNAMIC - .dynamic in text segment, not data segment.
26# EMBEDDED - whether this is for an embedded system.
27# SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
28# start address of shared library.
29# INPUT_FILES - INPUT command of files to always include
30# WRITABLE_RODATA - if set, the .rodata section should be writable
31# INIT_START, INIT_END - statements just before and just after
32# combination of .init sections.
33# FINI_START, FINI_END - statements just before and just after
34# combination of .fini sections.
35#
36# When adding sections, do note that the names of some sections are used
37# when specifying the start address of the next.
38#
39
40# Many sections come in three flavours. There is the 'real' section,
41# like ".data". Then there are the per-procedure or per-variable
42# sections, generated by -ffunction-sections and -fdata-sections in GCC,
43# and useful for --gc-sections, which for a variable "foo" might be
44# ".data.foo". Then there are the linkonce sections, for which the linker
45# eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
46# The exact correspondences are:
47#
48# Section Linkonce section
49# .text .gnu.linkonce.t.foo
50# .rodata .gnu.linkonce.r.foo
51# .data .gnu.linkonce.d.foo
52# .bss .gnu.linkonce.b.foo
53# .sdata .gnu.linkonce.s.foo
54# .sbss .gnu.linkonce.sb.foo
55# .sdata2 .gnu.linkonce.s2.foo
56# .sbss2 .gnu.linkonce.sb2.foo
57#
58# Each of these can also have corresponding .rel.* and .rela.* sections.
59
60test -z "$ENTRY" && ENTRY=_start
61test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
62test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
63if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
64test -z "${ELFSIZE}" && ELFSIZE=32
65test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
66test "$LD_FLAG" = "N" && DATA_ADDR=.
67INTERP=".interp ${RELOCATING-0} : { *(.interp) }"
68PLT=".plt ${RELOCATING-0} : { *(.plt) }"
69DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
70RODATA=".rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} }"
71SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) ${RELOCATING+*(.sbss2.*)} ${RELOCATING+*(.gnu.linkonce.sb2.*)} }"
72SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) ${RELOCATING+*(.sdata2.*)} ${RELOCATING+*(.gnu.linkonce.s2.*)} }"
73CTOR=".ctors ${CONSTRUCTING-0} :
74 {
75 ${CONSTRUCTING+${CTOR_START}}
76 /* gcc uses crtbegin.o to find the start of
77 the constructors, so we make sure it is
78 first. Because this is a wildcard, it
79 doesn't matter if the user does not
80 actually link against crtbegin.o; the
81 linker won't look for a file to match a
82 wildcard. The wildcard also means that it
83 doesn't matter which directory crtbegin.o
84 is in. */
85
86 KEEP (*crtbegin.o(.ctors))
87 KEEP (*crtbegin?.o(.ctors))
88
89 /* We don't want to include the .ctor section from
90 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 *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 (*crtbegin?.o(.dtors))
105 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
106 KEEP (*(SORT(.dtors.*)))
107 KEEP (*(.dtors))
108 ${CONSTRUCTING+${DTOR_END}}
109 }"
110
111# if this is for an embedded system, don't add SIZEOF_HEADERS.
112if [ -z "$EMBEDDED" ]; then
113 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
114else
115 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
116fi
117
118cat <<EOF
119OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
120 "${LITTLE_OUTPUT_FORMAT}")
121OUTPUT_ARCH(${OUTPUT_ARCH})
122${RELOCATING+ENTRY(${ENTRY})}
123
124${RELOCATING+${LIB_SEARCH_DIRS}}
125${RELOCATING+/* Do we need any of these for elf?
126 __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
127${RELOCATING+${EXECUTABLE_SYMBOLS}}
128${RELOCATING+${INPUT_FILES}}
129${RELOCATING- /* For some reason, the Solaris linker makes bad executables
130 if gld -r is used and the intermediate file has sections starting
131 at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
132 bug. But for now assigning the zero vmas works. */}
133
134SECTIONS
135{
136 ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
137 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
138 ${CREATE_SHLIB-${INTERP}}
139 ${TEXT_DYNAMIC+${DYNAMIC}}
140
141EOF
142if [ "x$COMBRELOC" = x ]; then
143 COMBRELOCCAT=cat
144else
145 COMBRELOCCAT="cat > $COMBRELOC"
146fi
147eval $COMBRELOCCAT <<EOF
148 .rel.init ${RELOCATING-0} : { *(.rel.init) }
149 .rela.init ${RELOCATING-0} : { *(.rela.init) }
150 .rel.text ${RELOCATING-0} :
151 {
152 *(.rel.text)
153 ${RELOCATING+*(.rel.text.*)}
154 ${RELOCATING+*(.rel.gnu.linkonce.t.*)}
155 }
156 .rela.text ${RELOCATING-0} :
157 {
158 *(.rela.text)
159 ${RELOCATING+*(.rela.text.*)}
160 ${RELOCATING+*(.rela.gnu.linkonce.t.*)}
161 }
162 .rel.fini ${RELOCATING-0} : { *(.rel.fini) }
163 .rela.fini ${RELOCATING-0} : { *(.rela.fini) }
164 .rel.rodata ${RELOCATING-0} :
165 {
166 *(.rel.rodata)
167 ${RELOCATING+*(.rel.rodata.*)}
168 ${RELOCATING+*(.rel.gnu.linkonce.r.*)}
169 }
170 .rela.rodata ${RELOCATING-0} :
171 {
172 *(.rela.rodata)
173 ${RELOCATING+*(.rela.rodata.*)}
174 ${RELOCATING+*(.rela.gnu.linkonce.r.*)}
175 }
176 ${OTHER_READONLY_RELOC_SECTIONS}
177 .rel.data ${RELOCATING-0} :
178 {
179 *(.rel.data)
180 ${RELOCATING+*(.rel.data.*)}
181 ${RELOCATING+*(.rel.gnu.linkonce.d.*)}
182 }
183 .rela.data ${RELOCATING-0} :
184 {
185 *(.rela.data)
186 ${RELOCATING+*(.rela.data.*)}
187 ${RELOCATING+*(.rela.gnu.linkonce.d.*)}
188 }
189 .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
190 .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
191 .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
192 .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
193 .rel.got ${RELOCATING-0} : { *(.rel.got) }
194 .rela.got ${RELOCATING-0} : { *(.rela.got) }
195 ${OTHER_GOT_RELOC_SECTIONS}
196 .rel.sdata ${RELOCATING-0} :
197 {
198 *(.rel.sdata)
199 ${RELOCATING+*(.rel.sdata.*)}
200 ${RELOCATING+*(.rel.gnu.linkonce.s.*)}
201 }
202 .rela.sdata ${RELOCATING-0} :
203 {
204 *(.rela.sdata)
205 ${RELOCATING+*(.rela.sdata.*)}
206 ${RELOCATING+*(.rela.gnu.linkonce.s.*)}
207 }
208 .rel.sbss ${RELOCATING-0} :
209 {
210 *(.rel.sbss)
211 ${RELOCATING+*(.rel.sbss.*)}
212 ${RELOCATING+*(.rel.gnu.linkonce.sb.*)}
213 }
214 .rela.sbss ${RELOCATING-0} :
215 {
216 *(.rela.sbss)
217 ${RELOCATING+*(.rela.sbss.*)}
218 ${RELOCATING+*(.rela.gnu.linkonce.sb.*)}
219 }
220 .rel.sdata2 ${RELOCATING-0} :
221 {
222 *(.rel.sdata2)
223 ${RELOCATING+*(.rel.sdata2.*)}
224 ${RELOCATING+*(.rel.gnu.linkonce.s2.*)}
225 }
226 .rela.sdata2 ${RELOCATING-0} :
227 {
228 *(.rela.sdata2)
229 ${RELOCATING+*(.rela.sdata2.*)}
230 ${RELOCATING+*(.rela.gnu.linkonce.s2.*)}
231 }
232 .rel.sbss2 ${RELOCATING-0} :
233 {
234 *(.rel.sbss2)
235 ${RELOCATING+*(.rel.sbss2.*)}
236 ${RELOCATING+*(.rel.gnu.linkonce.sb2.*)}
237 }
238 .rela.sbss2 ${RELOCATING-0} :
239 {
240 *(.rela.sbss2)
241 ${RELOCATING+*(.rela.sbss2.*)}
242 ${RELOCATING+*(.rela.gnu.linkonce.sb2.*)}
243 }
244 .rel.bss ${RELOCATING-0} :
245 {
246 *(.rel.bss)
247 ${RELOCATING+*(.rel.bss.*)}
248 ${RELOCATING+*(.rel.gnu.linkonce.b.*)}
249 }
250 .rela.bss ${RELOCATING-0} :
251 {
252 *(.rela.bss)
253 ${RELOCATING+*(.rela.bss.*)}
254 ${RELOCATING+*(.rela.gnu.linkonce.b.*)}
255 }
256EOF
257if [ -n "$COMBRELOC" ]; then
258cat <<EOF
259 .rel.dyn :
260 {
261EOF
262sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
263cat <<EOF
264 }
265 .rela.dyn :
266 {
267EOF
268sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
269cat <<EOF
270 }
271EOF
272fi
273cat <<EOF
274 .rel.plt ${RELOCATING-0} : { *(.rel.plt) }
275 .rela.plt ${RELOCATING-0} : { *(.rela.plt) }
276 ${OTHER_PLT_RELOC_SECTIONS}
277
278 .init ${RELOCATING-0} :
279 {
280 ${RELOCATING+${INIT_START}}
281 KEEP (*(.init))
282 ${RELOCATING+${INIT_END}}
283 } =${NOP-0}
284
285 ${DATA_PLT-${BSS_PLT-${PLT}}}
286 .text ${RELOCATING-0} :
287 {
288 ${RELOCATING+${TEXT_START_SYMBOLS}}
289 *(.text)
290 ${RELOCATING+*(.text.*)}
291 *(.stub)
292 /* .gnu.warning sections are handled specially by elf32.em. */
293 *(.gnu.warning)
294 ${RELOCATING+*(.gnu.linkonce.t.*)}
295 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
296 } =${NOP-0}
297 .fini ${RELOCATING-0} :
298 {
299 ${RELOCATING+${FINI_START}}
300 KEEP (*(.fini))
301 ${RELOCATING+${FINI_END}}
302 } =${NOP-0}
303 ${RELOCATING+PROVIDE (__etext = .);}
304 ${RELOCATING+PROVIDE (_etext = .);}
305 ${RELOCATING+PROVIDE (etext = .);}
306
307 /* Adjust the address for the data segment. We want to adjust up to
308 the same address within the page on the next page up. */
309 ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
310 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
311
312 .data ${RELOCATING-0} :
313 {
314 ${RELOCATING+${DATA_START_SYMBOLS}}
315 *(.data)
316 ${RELOCATING+*(.data.*)}
317 ${RELOCATING+*(.gnu.linkonce.d.*)}
318 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
319 }
320 .data1 ${RELOCATING-0} : { *(.data1) }
321 .eh_frame ${RELOCATING-0} :
322 {
323 ${RELOCATING+PROVIDE (__eh_frame_begin = .);}
324 *(.eh_frame)
325 LONG (0);
326 ${RELOCATING+PROVIDE (__eh_frame_end = .);}
327 } ${RELOCATING+}
328 .gcc_except_table : { *(.gcc_except_table) }
329 ${INITIAL_READONLY_SECTIONS}
330 .hash ${RELOCATING-0} : { *(.hash) }
331 .dynsym ${RELOCATING-0} : { *(.dynsym) }
332 .dynstr ${RELOCATING-0} : { *(.dynstr) }
333 .gnu.version ${RELOCATING-0} : { *(.gnu.version) }
334 .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) }
335 .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) }
336 ${RODATA}
337 .rodata1 ${RELOCATING-0} : { *(.rodata1) }
338 ${CREATE_SHLIB-${SDATA2}}
339 ${CREATE_SHLIB-${SBSS2}}
340 ${RELOCATING+${OTHER_READONLY_SECTIONS}}
341 ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
342 ${TEXT_DYNAMIC-${DYNAMIC}}
343 ${RELOCATING+${CTOR}}
344 ${RELOCATING+${DTOR}}
345 .jcr : { KEEP (*(.jcr)) }
346 ${DATA_PLT+${PLT}}
347 ${RELOCATING+${OTHER_GOT_SYMBOLS}}
348 .got ${RELOCATING-0} : { *(.got.plt) *(.got) }
349 ${RELOCATING+${OTHER_GOT_SECTIONS}}
350 ${CREATE_SHLIB+${SDATA2}}
351 ${CREATE_SHLIB+${SBSS2}}
352 /* We want the small data sections together, so single-instruction offsets
353 can access them all, and initialized data all before uninitialized, so
354 we can shorten the on-disk segment size. */
355 .sdata ${RELOCATING-0} :
356 {
357 ${RELOCATING+${SDATA_START_SYMBOLS}}
358 *(.sdata)
359 ${RELOCATING+*(.sdata.*)}
360 ${RELOCATING+*(.gnu.linkonce.s.*)}
361 }
362 ${RELOCATING+${OTHER_SDATA_SECTIONS}}
363 ${RELOCATING+_edata = .;}
364 ${RELOCATING+PROVIDE (edata = .);}
365 ${RELOCATING+__bss_start = .;}
366 ${RELOCATING+${OTHER_BSS_SYMBOLS}}
367 .sbss ${RELOCATING-0} :
368 {
369 ${RELOCATING+PROVIDE (__sbss_start = .);}
370 ${RELOCATING+PROVIDE (___sbss_start = .);}
371 *(.dynsbss)
372 *(.sbss)
373 ${RELOCATING+*(.sbss.*)}
374 ${RELOCATING+*(.gnu.linkonce.sb.*)}
375 *(.scommon)
376 ${RELOCATING+PROVIDE (__sbss_end = .);}
377 ${RELOCATING+PROVIDE (___sbss_end = .);}
378 }
379 ${BSS_PLT+${PLT}}
380 .bss ${RELOCATING-0} :
381 {
382 *(.dynbss)
383 *(.bss)
384 ${RELOCATING+*(.bss.*)}
385 ${RELOCATING+*(.gnu.linkonce.b.*)}
386 *(COMMON)
387 /* Align here to ensure that the .bss section occupies space up to
388 _end. Align after .bss to ensure correct alignment even if the
389 .bss section disappears because there are no input sections. */
390 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
391 }
392 ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
393 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
394 ${RELOCATING+${OTHER_END_SYMBOLS}}
395 ${RELOCATING+_end = .;}
396 ${RELOCATING+PROVIDE (end = .);}
397
398 /* Stabs debugging sections. */
399 .stab 0 : { *(.stab) }
400 .stabstr 0 : { *(.stabstr) }
401 .stab.excl 0 : { *(.stab.excl) }
402 .stab.exclstr 0 : { *(.stab.exclstr) }
403 .stab.index 0 : { *(.stab.index) }
404 .stab.indexstr 0 : { *(.stab.indexstr) }
405
406 .comment 0 : { *(.comment) }
407
408EOF
409
410. $srcdir/scripttempl/DWARF.sc
411
412cat <<EOF
413 ${RELOCATING+${OTHER_RELOCATING_SECTIONS}}
414
415 /* These must appear regardless of ${RELOCATING}. */
416 ${OTHER_SECTIONS}
417}
418EOF
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