]> git.ipfire.org Git - thirdparty/binutils-gdb.git/blob - ld/scripttempl/elf.sc
Rename elf32.em to elf.em
[thirdparty/binutils-gdb.git] / ld / scripttempl / elf.sc
1 # Copyright (C) 2014-2019 Free Software Foundation, Inc.
2 #
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.
6 #
7 # Unusual variables checked by this code:
8 # NOP - four byte opcode for no-op (defaults to none)
9 # NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not
10 # empty.
11 # SMALL_DATA_CTOR - .ctors contains small data.
12 # SMALL_DATA_DTOR - .dtors contains small data.
13 # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
14 # INITIAL_READONLY_SECTIONS - at start of text segment
15 # OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
16 # (e.g., .PARISC.milli)
17 # OTHER_TEXT_SECTIONS - these get put in .text when relocating
18 # INITIAL_READWRITE_SECTIONS - at start of data segment (after relro)
19 # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
20 # (e.g., .PARISC.global)
21 # OTHER_RELRO_SECTIONS - other than .data.rel.ro ...
22 # (e.g. PPC32 .fixup, .got[12])
23 # OTHER_RELRO_SECTIONS_2 - as above, but after .dynamic in text segment
24 # OTHER_BSS_SECTIONS - other than .bss .sbss ...
25 # ATTRS_SECTIONS - at the end
26 # OTHER_SECTIONS - at the end
27 # EXECUTABLE_SYMBOLS - symbols that must be defined for an
28 # executable (e.g., _DYNAMIC_LINK)
29 # TEXT_START_ADDR - the first byte of the text segment, after any
30 # headers.
31 # TEXT_BASE_ADDRESS - the first byte of the text segment.
32 # TEXT_START_SYMBOLS - symbols that appear at the start of the
33 # .text section.
34 # DATA_START_SYMBOLS - symbols that appear at the start of the
35 # .data section.
36 # DATA_END_SYMBOLS - symbols that appear at the end of the
37 # writeable data sections.
38 # OTHER_GOT_SYMBOLS - symbols defined just before .got.
39 # OTHER_GOT_SECTIONS - sections just after .got.
40 # OTHER_PLT_SECTIONS - sections just after .plt.
41 # OTHER_SDATA_SECTIONS - sections just after .sdata.
42 # OTHER_BSS_SYMBOLS - symbols that appear at the start of the
43 # .bss section besides __bss_start.
44 # PLT_NEXT_DATA - .plt next to data segment when .plt is in text segment.
45 # DATA_PLT - .plt should be in data segment, not text segment.
46 # PLT_BEFORE_GOT - .plt just before .got when .plt is in data segement.
47 # BSS_PLT - .plt should be in bss segment
48 # NO_REL_RELOCS - Don't include .rel.* sections in script
49 # NO_RELA_RELOCS - Don't include .rela.* sections in script
50 # NON_ALLOC_DYN - Place dynamic sections after data segment.
51 # TEXT_DYNAMIC - .dynamic in text segment, not data segment.
52 # EMBEDDED - whether this is for an embedded system.
53 # SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
54 # start address of shared library.
55 # INPUT_FILES - INPUT command of files to always include
56 # WRITABLE_RODATA - if set, the .rodata section should be writable
57 # INIT_START, INIT_END - statements just before and just after
58 # combination of .init sections.
59 # FINI_START, FINI_END - statements just before and just after
60 # combination of .fini sections.
61 # STACK_ADDR - start of a .stack section.
62 # OTHER_SYMBOLS - symbols to place right at the end of the script.
63 # ETEXT_NAME - name of a symbol for the end of the text section,
64 # normally etext.
65 # SEPARATE_CODE - if set, .text and similar sections containing
66 # actual machine instructions must be in wholly disjoint
67 # pages from any other data, including headers
68 # SEPARATE_GOTPLT - if set, .got.plt should be separate output section,
69 # so that .got can be in the RELRO area. It should be set to
70 # the number of bytes in the beginning of .got.plt which can be
71 # in the RELRO area as well.
72 # USER_LABEL_PREFIX - prefix to add to user-visible symbols.
73 # RODATA_NAME, SDATA_NAME, SBSS_NAME, BSS_NAME - base parts of names
74 # for standard sections, without initial "." or suffixes.
75 #
76 # When adding sections, do note that the names of some sections are used
77 # when specifying the start address of the next.
78 #
79
80 # Many sections come in three flavours. There is the 'real' section,
81 # like ".data". Then there are the per-procedure or per-variable
82 # sections, generated by -ffunction-sections and -fdata-sections in GCC,
83 # and useful for --gc-sections, which for a variable "foo" might be
84 # ".data.foo". Then there are the linkonce sections, for which the linker
85 # eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
86 # The exact correspondences are:
87 #
88 # Section Linkonce section
89 # .text .gnu.linkonce.t.foo
90 # .rodata .gnu.linkonce.r.foo
91 # .data .gnu.linkonce.d.foo
92 # .bss .gnu.linkonce.b.foo
93 # .sdata .gnu.linkonce.s.foo
94 # .sbss .gnu.linkonce.sb.foo
95 # .sdata2 .gnu.linkonce.s2.foo
96 # .sbss2 .gnu.linkonce.sb2.foo
97 # .debug_info .gnu.linkonce.wi.foo
98 # .tdata .gnu.linkonce.td.foo
99 # .tbss .gnu.linkonce.tb.foo
100 # .lrodata .gnu.linkonce.lr.foo
101 # .ldata .gnu.linkonce.l.foo
102 # .lbss .gnu.linkonce.lb.foo
103 #
104 # Each of these can also have corresponding .rel.* and .rela.* sections.
105
106 if test -n "$NOP"; then
107 FILL="=$NOP"
108 else
109 FILL=
110 fi
111
112 test -n "$CREATE_SHLIB$CREATE_PIE" && CREATE_PIC=" "
113 test -z "$RODATA_NAME" && RODATA_NAME=rodata
114 test -z "$SDATA_NAME" && SDATA_NAME=sdata
115 test -z "$SBSS_NAME" && SBSS_NAME=sbss
116 test -z "$BSS_NAME" && BSS_NAME=bss
117 test -z "$ENTRY" && ENTRY=${USER_LABEL_PREFIX}_start
118 test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
119 test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
120 if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
121 test -z "${ELFSIZE}" && ELFSIZE=32
122 test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
123 test "$LD_FLAG" = "N" && DATA_ADDR=.
124 test -z "${ETEXT_NAME}" && ETEXT_NAME=${USER_LABEL_PREFIX}etext
125 test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT
126 test -z "$ATTRS_SECTIONS" && ATTRS_SECTIONS=".gnu.attributes 0 : { KEEP (*(.gnu.attributes)) }"
127 if test -z "$DATA_SEGMENT_ALIGN"; then
128 test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
129 test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
130 DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
131 DATA_SEGMENT_RELRO_END=""
132 DATA_SEGMENT_END=""
133 if test -n "${COMMONPAGESIZE}"; then
134 if test "${SEGMENT_SIZE}" != "${MAXPAGESIZE}"; then
135 DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
136 else
137 DATA_SEGMENT_ALIGN="DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
138 fi
139 DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
140 DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (${SEPARATE_GOTPLT-0}, .);"
141 fi
142 fi
143 if test -z "${INITIAL_READONLY_SECTIONS}${CREATE_SHLIB}"; then
144 INITIAL_READONLY_SECTIONS=".interp ${RELOCATING-0} : { *(.interp) }"
145 fi
146 if test -z "$PLT"; then
147 IPLT=".iplt ${RELOCATING-0} : { *(.iplt) }"
148 PLT=".plt ${RELOCATING-0} : { *(.plt)${RELOCATING+${IREL_IN_PLT+ *(.iplt)}} }
149 ${IREL_IN_PLT-$IPLT}"
150 fi
151 test -n "${DATA_PLT-${BSS_PLT-text}}" && TEXT_PLT=
152 if test -z "$GOT"; then
153 if test -z "$SEPARATE_GOTPLT"; then
154 GOT=".got ${RELOCATING-0} : {${RELOCATING+ *(.got.plt) *(.igot.plt)} *(.got)${RELOCATING+ *(.igot)} }"
155 else
156 GOT=".got ${RELOCATING-0} : { *(.got)${RELOCATING+ *(.igot)} }"
157 GOTPLT=".got.plt ${RELOCATING-0} : { *(.got.plt)${RELOCATING+ *(.igot.plt)} }"
158 fi
159 fi
160 REL_IFUNC=".rel.ifunc ${RELOCATING-0} : { *(.rel.ifunc) }"
161 RELA_IFUNC=".rela.ifunc ${RELOCATING-0} : { *(.rela.ifunc) }"
162 REL_IPLT=".rel.iplt ${RELOCATING-0} :
163 {
164 ${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_start = .);}}
165 *(.rel.iplt)
166 ${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_end = .);}}
167 }"
168 RELA_IPLT=".rela.iplt ${RELOCATING-0} :
169 {
170 ${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_start = .);}}
171 *(.rela.iplt)
172 ${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_end = .);}}
173 }"
174 DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
175 RODATA=".${RODATA_NAME} ${RELOCATING-0} : { *(.${RODATA_NAME}${RELOCATING+ .${RODATA_NAME}.* .gnu.linkonce.r.*}) }"
176 DATARELRO=".data.rel.ro : { *(.data.rel.ro.local* .gnu.linkonce.d.rel.ro.local.*) *(.data.rel.ro .data.rel.ro.* .gnu.linkonce.d.rel.ro.*) }"
177 DISCARDED="/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }"
178 if test -z "${NO_SMALL_DATA}"; then
179 SBSS=".${SBSS_NAME} ${RELOCATING-0} :
180 {
181 ${RELOCATING+${SBSS_START_SYMBOLS}}
182 ${CREATE_SHLIB+*(.${SBSS_NAME}2 .${SBSS_NAME}2.* .gnu.linkonce.sb2.*)}
183 ${RELOCATING+*(.dyn${SBSS_NAME})}
184 *(.${SBSS_NAME}${RELOCATING+ .${SBSS_NAME}.* .gnu.linkonce.sb.*})
185 ${RELOCATING+*(.scommon)}
186 ${RELOCATING+${SBSS_END_SYMBOLS}}
187 }"
188 SBSS2=".${SBSS_NAME}2 ${RELOCATING-0} : { *(.${SBSS_NAME}2${RELOCATING+ .${SBSS_NAME}2.* .gnu.linkonce.sb2.*}) }"
189 SDATA="/* We want the small data sections together, so single-instruction offsets
190 can access them all, and initialized data all before uninitialized, so
191 we can shorten the on-disk segment size. */
192 .${SDATA_NAME} ${RELOCATING-0} :
193 {
194 ${RELOCATING+${SDATA_START_SYMBOLS}}
195 ${CREATE_SHLIB+*(.${SDATA_NAME}2 .${SDATA_NAME}2.* .gnu.linkonce.s2.*)}
196 *(.${SDATA_NAME}${RELOCATING+ .${SDATA_NAME}.* .gnu.linkonce.s.*})
197 }"
198 SDATA2=".${SDATA_NAME}2 ${RELOCATING-0} :
199 {
200 ${RELOCATING+${SDATA2_START_SYMBOLS}}
201 *(.${SDATA_NAME}2${RELOCATING+ .${SDATA_NAME}2.* .gnu.linkonce.s2.*})
202 }"
203 REL_SDATA=".rel.${SDATA_NAME} ${RELOCATING-0} : { *(.rel.${SDATA_NAME}${RELOCATING+ .rel.${SDATA_NAME}.* .rel.gnu.linkonce.s.*}) }
204 .rela.${SDATA_NAME} ${RELOCATING-0} : { *(.rela.${SDATA_NAME}${RELOCATING+ .rela.${SDATA_NAME}.* .rela.gnu.linkonce.s.*}) }"
205 REL_SBSS=".rel.${SBSS_NAME} ${RELOCATING-0} : { *(.rel.${SBSS_NAME}${RELOCATING+ .rel.${SBSS_NAME}.* .rel.gnu.linkonce.sb.*}) }
206 .rela.${SBSS_NAME} ${RELOCATING-0} : { *(.rela.${SBSS_NAME}${RELOCATING+ .rela.${SBSS_NAME}.* .rela.gnu.linkonce.sb.*}) }"
207 REL_SDATA2=".rel.${SDATA_NAME}2 ${RELOCATING-0} : { *(.rel.${SDATA_NAME}2${RELOCATING+ .rel.${SDATA_NAME}2.* .rel.gnu.linkonce.s2.*}) }
208 .rela.${SDATA_NAME}2 ${RELOCATING-0} : { *(.rela.${SDATA_NAME}2${RELOCATING+ .rela.${SDATA_NAME}2.* .rela.gnu.linkonce.s2.*}) }"
209 REL_SBSS2=".rel.${SBSS_NAME}2 ${RELOCATING-0} : { *(.rel.${SBSS_NAME}2${RELOCATING+ .rel.${SBSS_NAME}2.* .rel.gnu.linkonce.sb2.*}) }
210 .rela.${SBSS_NAME}2 ${RELOCATING-0} : { *(.rela.${SBSS_NAME}2${RELOCATING+ .rela.${SBSS_NAME}2.* .rela.gnu.linkonce.sb2.*}) }"
211 else
212 NO_SMALL_DATA=" "
213 fi
214 if test -z "${SDATA_GOT}${DATA_GOT}"; then
215 if test -n "${NO_SMALL_DATA}"; then
216 DATA_GOT=" "
217 fi
218 fi
219 if test -z "${SDATA_GOT}${DATA_GOT}"; then
220 if test -z "${NO_SMALL_DATA}"; then
221 SDATA_GOT=" "
222 fi
223 fi
224 test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "
225 test "${LARGE_SECTIONS}" = "yes" && REL_LARGE="
226 .rel.ldata ${RELOCATING-0} : { *(.rel.ldata${RELOCATING+ .rel.ldata.* .rel.gnu.linkonce.l.*}) }
227 .rela.ldata ${RELOCATING-0} : { *(.rela.ldata${RELOCATING+ .rela.ldata.* .rela.gnu.linkonce.l.*}) }
228 .rel.lbss ${RELOCATING-0} : { *(.rel.lbss${RELOCATING+ .rel.lbss.* .rel.gnu.linkonce.lb.*}) }
229 .rela.lbss ${RELOCATING-0} : { *(.rela.lbss${RELOCATING+ .rela.lbss.* .rela.gnu.linkonce.lb.*}) }
230 .rel.lrodata ${RELOCATING-0} : { *(.rel.lrodata${RELOCATING+ .rel.lrodata.* .rel.gnu.linkonce.lr.*}) }
231 .rela.lrodata ${RELOCATING-0} : { *(.rela.lrodata${RELOCATING+ .rela.lrodata.* .rela.gnu.linkonce.lr.*}) }"
232 test "${LARGE_SECTIONS}" = "yes" && LARGE_BSS="
233 .lbss ${RELOCATING-0} :
234 {
235 ${RELOCATING+*(.dynlbss)}
236 *(.lbss${RELOCATING+ .lbss.* .gnu.linkonce.lb.*})
237 ${RELOCATING+*(LARGE_COMMON)}
238 }"
239 test "${LARGE_SECTIONS}" = "yes" && LARGE_SECTIONS="
240 .lrodata ${RELOCATING-0} ${RELOCATING+ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))} :
241 {
242 *(.lrodata${RELOCATING+ .lrodata.* .gnu.linkonce.lr.*})
243 }
244 .ldata ${RELOCATING-0} ${RELOCATING+ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))} :
245 {
246 *(.ldata${RELOCATING+ .ldata.* .gnu.linkonce.l.*})
247 ${RELOCATING+. = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
248 }"
249 if test "${ENABLE_INITFINI_ARRAY}" = "yes"; then
250 SORT_INIT_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.init_array.*) SORT_BY_INIT_PRIORITY(.ctors.*)))"
251 SORT_FINI_ARRAY="KEEP (*(SORT_BY_INIT_PRIORITY(.fini_array.*) SORT_BY_INIT_PRIORITY(.dtors.*)))"
252 CTORS_IN_INIT_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors"
253 DTORS_IN_FINI_ARRAY="EXCLUDE_FILE (*crtbegin.o *crtbegin?.o *crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors"
254 else
255 SORT_INIT_ARRAY="KEEP (*(SORT(.init_array.*)))"
256 SORT_FINI_ARRAY="KEEP (*(SORT(.fini_array.*)))"
257 CTORS_IN_INIT_ARRAY=
258 DTORS_IN_FINI_ARRAY=
259 fi
260 PREINIT_ARRAY=".preinit_array :
261 {
262 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_start = .);}
263 KEEP (*(.preinit_array))
264 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__preinit_array_end = .);}
265 }"
266 INIT_ARRAY=".init_array :
267 {
268 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_start = .);}
269 ${SORT_INIT_ARRAY}
270 KEEP (*(.init_array ${CTORS_IN_INIT_ARRAY}))
271 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__init_array_end = .);}
272 }"
273 FINI_ARRAY=".fini_array :
274 {
275 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_start = .);}
276 ${SORT_FINI_ARRAY}
277 KEEP (*(.fini_array ${DTORS_IN_FINI_ARRAY}))
278 ${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__fini_array_end = .);}
279 }"
280 CTOR=".ctors ${CONSTRUCTING-0} :
281 {
282 ${CONSTRUCTING+${CTOR_START}}
283 /* gcc uses crtbegin.o to find the start of
284 the constructors, so we make sure it is
285 first. Because this is a wildcard, it
286 doesn't matter if the user does not
287 actually link against crtbegin.o; the
288 linker won't look for a file to match a
289 wildcard. The wildcard also means that it
290 doesn't matter which directory crtbegin.o
291 is in. */
292
293 KEEP (*crtbegin.o(.ctors))
294 KEEP (*crtbegin?.o(.ctors))
295
296 /* We don't want to include the .ctor section from
297 the crtend.o file until after the sorted ctors.
298 The .ctor section from the crtend file contains the
299 end of ctors marker and it must be last */
300
301 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
302 KEEP (*(SORT(.ctors.*)))
303 KEEP (*(.ctors))
304 ${CONSTRUCTING+${CTOR_END}}
305 }"
306 DTOR=".dtors ${CONSTRUCTING-0} :
307 {
308 ${CONSTRUCTING+${DTOR_START}}
309 KEEP (*crtbegin.o(.dtors))
310 KEEP (*crtbegin?.o(.dtors))
311 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
312 KEEP (*(SORT(.dtors.*)))
313 KEEP (*(.dtors))
314 ${CONSTRUCTING+${DTOR_END}}
315 }"
316 STACK=".stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
317 {
318 ${RELOCATING+${USER_LABEL_PREFIX}_stack = .;}
319 *(.stack)
320 ${RELOCATING+${STACK_SENTINEL}}
321 }"
322
323 TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${TEXT_START_ADDR})"
324 SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-0})"
325
326 # Don't bother with separate code segment when there are data sections
327 # between .plt and .text.
328 if test -z "$TINY_READONLY_SECTION"; then
329 case "$LD_FLAG" in
330 *textonly*)
331 SEPARATE_TEXT=" "
332 TEXT_SEGMENT_ALIGN=". = ALIGN(${MAXPAGESIZE});"
333 ;;
334 esac
335 fi
336
337 if [ -z "$SEPARATE_CODE" ]; then
338 SIZEOF_HEADERS_CODE=" + SIZEOF_HEADERS"
339 else
340 SIZEOF_HEADERS_CODE=
341 fi
342
343 # If this is for an embedded system, don't add SIZEOF_HEADERS.
344 if [ -z "$EMBEDDED" ]; then
345 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}${SIZEOF_HEADERS_CODE}"
346 else
347 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
348 fi
349
350 cat <<EOF
351 /* Copyright (C) 2014-2019 Free Software Foundation, Inc.
352
353 Copying and distribution of this script, with or without modification,
354 are permitted in any medium without royalty provided the copyright
355 notice and this notice are preserved. */
356
357 OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
358 "${LITTLE_OUTPUT_FORMAT}")
359 OUTPUT_ARCH(${OUTPUT_ARCH})
360 ${RELOCATING+ENTRY(${ENTRY})}
361
362 ${RELOCATING+${LIB_SEARCH_DIRS}}
363 ${RELOCATING+${CREATE_SHLIB-${EXECUTABLE_SYMBOLS}}}
364 ${RELOCATING+${INPUT_FILES}}
365 ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
366 if gld -r is used and the intermediate file has sections starting
367 at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
368 bug. But for now assigning the zero vmas works. */}
369
370 SECTIONS
371 {
372 ${RELOCATING+${SEPARATE_TEXT-/* Read-only sections, merged into text segment: */}}
373 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
374 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
375 ${CREATE_PIE+${RELOCATING+PROVIDE (__executable_start = ${SHLIB_TEXT_START_ADDR}); . = ${SHLIB_TEXT_START_ADDR}${SIZEOF_HEADERS_CODE};}}
376 EOF
377
378 emit_early_ro()
379 {
380 cat <<EOF
381 ${INITIAL_READONLY_SECTIONS}
382 .note.gnu.build-id ${RELOCATING-0}: { *(.note.gnu.build-id) }
383 EOF
384 }
385
386 test -n "${SEPARATE_CODE}" || emit_early_ro
387
388 test -n "${RELOCATING+0}" || unset NON_ALLOC_DYN
389 test -z "${NON_ALLOC_DYN}" || TEXT_DYNAMIC=
390 cat > ldscripts/dyntmp.$$ <<EOF
391 ${TEXT_DYNAMIC+${DYNAMIC}}
392 .hash ${RELOCATING-0} : { *(.hash) }
393 .gnu.hash ${RELOCATING-0} : { *(.gnu.hash) }
394 .dynsym ${RELOCATING-0} : { *(.dynsym) }
395 .dynstr ${RELOCATING-0} : { *(.dynstr) }
396 .gnu.version ${RELOCATING-0} : { *(.gnu.version) }
397 .gnu.version_d ${RELOCATING-0}: { *(.gnu.version_d) }
398 .gnu.version_r ${RELOCATING-0}: { *(.gnu.version_r) }
399 EOF
400
401 if [ "x$COMBRELOC" = x ]; then
402 COMBRELOCCAT="cat >> ldscripts/dyntmp.$$"
403 else
404 COMBRELOCCAT="cat > $COMBRELOC"
405 fi
406 eval $COMBRELOCCAT <<EOF
407 ${INITIAL_RELOC_SECTIONS}
408 .rel.init ${RELOCATING-0} : { *(.rel.init) }
409 .rela.init ${RELOCATING-0} : { *(.rela.init) }
410 .rel.text ${RELOCATING-0} : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
411 .rela.text ${RELOCATING-0} : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
412 .rel.fini ${RELOCATING-0} : { *(.rel.fini) }
413 .rela.fini ${RELOCATING-0} : { *(.rela.fini) }
414 .rel.${RODATA_NAME} ${RELOCATING-0} : { *(.rel.${RODATA_NAME}${RELOCATING+ .rel.${RODATA_NAME}.* .rel.gnu.linkonce.r.*}) }
415 .rela.${RODATA_NAME} ${RELOCATING-0} : { *(.rela.${RODATA_NAME}${RELOCATING+ .rela.${RODATA_NAME}.* .rela.gnu.linkonce.r.*}) }
416 ${OTHER_READONLY_RELOC_SECTIONS}
417 .rel.data.rel.ro ${RELOCATING-0} : { *(.rel.data.rel.ro${RELOCATING+ .rel.data.rel.ro.* .rel.gnu.linkonce.d.rel.ro.*}) }
418 .rela.data.rel.ro ${RELOCATING-0} : { *(.rela.data.rel.ro${RELOCATING+ .rela.data.rel.ro.* .rela.gnu.linkonce.d.rel.ro.*}) }
419 .rel.data ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
420 .rela.data ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
421 ${OTHER_READWRITE_RELOC_SECTIONS}
422 .rel.tdata ${RELOCATING-0} : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
423 .rela.tdata ${RELOCATING-0} : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
424 .rel.tbss ${RELOCATING-0} : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
425 .rela.tbss ${RELOCATING-0} : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
426 .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
427 .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
428 .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
429 .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
430 .rel.got ${RELOCATING-0} : { *(.rel.got) }
431 .rela.got ${RELOCATING-0} : { *(.rela.got) }
432 ${OTHER_GOT_RELOC_SECTIONS}
433 ${REL_SDATA}
434 ${REL_SBSS}
435 ${REL_SDATA2}
436 ${REL_SBSS2}
437 .rel.${BSS_NAME} ${RELOCATING-0} : { *(.rel.${BSS_NAME}${RELOCATING+ .rel.${BSS_NAME}.* .rel.gnu.linkonce.b.*}) }
438 .rela.${BSS_NAME} ${RELOCATING-0} : { *(.rela.${BSS_NAME}${RELOCATING+ .rela.${BSS_NAME}.* .rela.gnu.linkonce.b.*}) }
439 ${REL_LARGE}
440 ${IREL_IN_PLT+$REL_IFUNC}
441 ${IREL_IN_PLT+$RELA_IFUNC}
442 ${IREL_IN_PLT-$REL_IPLT}
443 ${IREL_IN_PLT-$RELA_IPLT}
444 EOF
445
446 if [ -n "$COMBRELOC" ]; then
447 cat >> ldscripts/dyntmp.$$ <<EOF
448 .rel.dyn ${RELOCATING-0} :
449 {
450 EOF
451 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;/__rela_iplt_/d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC >> ldscripts/dyntmp.$$
452 cat >> ldscripts/dyntmp.$$ <<EOF
453 }
454 .rela.dyn ${RELOCATING-0} :
455 {
456 EOF
457 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;/__rel_iplt_/d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC >> ldscripts/dyntmp.$$
458 cat >> ldscripts/dyntmp.$$ <<EOF
459 }
460 EOF
461 fi
462
463 cat >> ldscripts/dyntmp.$$ <<EOF
464 .rel.plt ${RELOCATING-0} :
465 {
466 *(.rel.plt)
467 ${IREL_IN_PLT+${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_start = .);}}}
468 ${IREL_IN_PLT+${RELOCATING+*(.rel.iplt)}}
469 ${IREL_IN_PLT+${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rel_iplt_end = .);}}}
470 }
471 .rela.plt ${RELOCATING-0} :
472 {
473 *(.rela.plt)
474 ${IREL_IN_PLT+${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_start = .);}}}
475 ${IREL_IN_PLT+${RELOCATING+*(.rela.iplt)}}
476 ${IREL_IN_PLT+${RELOCATING+${CREATE_PIC-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__rela_iplt_end = .);}}}
477 }
478 ${OTHER_PLT_RELOC_SECTIONS}
479 EOF
480
481 emit_dyn()
482 {
483 if test -z "${NO_REL_RELOCS}${NO_RELA_RELOCS}"; then
484 cat ldscripts/dyntmp.$$
485 else
486 if test -z "${NO_REL_RELOCS}"; then
487 sed -e '/^[ ]*\.rela\.[^}]*$/,/}/d;/^[ ]*\.rela\./d;/__rela_iplt_/d' ldscripts/dyntmp.$$
488 fi
489 if test -z "${NO_RELA_RELOCS}"; then
490 sed -e '/^[ ]*\.rel\.[^}]*$/,/}/d;/^[ ]*\.rel\./d;/__rel_iplt_/d' ldscripts/dyntmp.$$
491 fi
492 fi
493 rm -f ldscripts/dyntmp.$$
494 }
495
496 test -n "${NON_ALLOC_DYN}${SEPARATE_CODE}" || emit_dyn
497
498 cat <<EOF
499 ${RELOCATING+${TEXT_SEGMENT_ALIGN}}
500
501 .init ${RELOCATING-0}${RELOCATING+${INIT_ADDR}} :
502 {
503 ${RELOCATING+${INIT_START}}
504 KEEP (*(SORT_NONE(.init)))
505 ${RELOCATING+${INIT_END}}
506 } ${FILL}
507
508 ${TEXT_PLT+${PLT_NEXT_DATA-${PLT} ${OTHER_PLT_SECTIONS}}}
509 ${TINY_READONLY_SECTION}
510 .text ${RELOCATING-0} :
511 {
512 ${RELOCATING+${TEXT_START_SYMBOLS}}
513 ${RELOCATING+*(.text.unlikely .text.*_unlikely .text.unlikely.*)}
514 ${RELOCATING+*(.text.exit .text.exit.*)}
515 ${RELOCATING+*(.text.startup .text.startup.*)}
516 ${RELOCATING+*(.text.hot .text.hot.*)}
517 *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
518 /* .gnu.warning sections are handled specially by elf.em. */
519 *(.gnu.warning)
520 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
521 } ${FILL}
522 .fini ${RELOCATING-0}${RELOCATING+${FINI_ADDR}} :
523 {
524 ${RELOCATING+${FINI_START}}
525 KEEP (*(SORT_NONE(.fini)))
526 ${RELOCATING+${FINI_END}}
527 } ${FILL}
528 ${RELOCATING+PROVIDE (__${ETEXT_NAME} = .);}
529 ${RELOCATING+PROVIDE (_${ETEXT_NAME} = .);}
530 ${RELOCATING+PROVIDE (${ETEXT_NAME} = .);}
531 ${RELOCATING+${TEXT_SEGMENT_ALIGN}}
532 EOF
533
534 if test -n "${SEPARATE_CODE}${SEPARATE_TEXT}"; then
535 if test -n "${RODATA_ADDR}"; then
536 RODATA_ADDR="\
537 SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR}) + SIZEOF_HEADERS"
538 else
539 RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
540 RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${RODATA_ADDR})"
541 fi
542 if test -n "${SHLIB_RODATA_ADDR}"; then
543 SHLIB_RODATA_ADDR="\
544 SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR}) + SIZEOF_HEADERS"
545 else
546 SHLIB_RODATA_ADDR="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
547 SHLIB_RODATA_ADDR="SEGMENT_START(\"rodata-segment\", ${SHLIB_RODATA_ADDR})"
548 fi
549 cat <<EOF
550 ${RELOCATING+/* Adjust the address for the rodata segment. We want to adjust up to
551 the same address within the page on the next page up. */
552 ${CREATE_SHLIB-${CREATE_PIE-. = ${RODATA_ADDR};}}
553 ${CREATE_SHLIB+. = ${SHLIB_RODATA_ADDR};}
554 ${CREATE_PIE+. = ${SHLIB_RODATA_ADDR};}}
555 EOF
556 if test -n "${SEPARATE_CODE}"; then
557 emit_early_ro
558 emit_dyn
559 fi
560 fi
561
562 cat <<EOF
563 ${WRITABLE_RODATA-${RODATA}}
564 .${RODATA_NAME}1 ${RELOCATING-0} : { *(.${RODATA_NAME}1) }
565 ${CREATE_SHLIB-${SDATA2}}
566 ${CREATE_SHLIB-${SBSS2}}
567 ${OTHER_READONLY_SECTIONS}
568 .eh_frame_hdr ${RELOCATING-0} : { *(.eh_frame_hdr)${RELOCATING+ *(.eh_frame_entry .eh_frame_entry.*)} }
569 .eh_frame ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame))${RELOCATING+ *(.eh_frame.*)} }
570 .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
571 .gnu_extab ${RELOCATING-0} : ONLY_IF_RO { *(.gnu_extab*) }
572 /* These sections are generated by the Sun/Oracle C++ compiler. */
573 .exception_ranges ${RELOCATING-0} : ONLY_IF_RO { *(.exception_ranges${RELOCATING+*}) }
574 ${TEXT_PLT+${PLT_NEXT_DATA+${PLT} ${OTHER_PLT_SECTIONS}}}
575
576 ${RELOCATING+/* Adjust the address for the data segment. We want to adjust up to
577 the same address within the page on the next page up. */}
578 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
579 ${CREATE_SHLIB+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}
580 ${CREATE_PIE+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}
581
582 /* Exception handling */
583 .eh_frame ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame))${RELOCATING+ *(.eh_frame.*)} }
584 .gnu_extab ${RELOCATING-0} : ONLY_IF_RW { *(.gnu_extab) }
585 .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
586 .exception_ranges ${RELOCATING-0} : ONLY_IF_RW { *(.exception_ranges${RELOCATING+*}) }
587
588 /* Thread Local Storage sections */
589 .tdata ${RELOCATING-0} :
590 {
591 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (${USER_LABEL_PREFIX}__tdata_start = .);}}
592 *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*})
593 }
594 .tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
595
596 ${RELOCATING+${PREINIT_ARRAY}}
597 ${RELOCATING+${INIT_ARRAY}}
598 ${RELOCATING+${FINI_ARRAY}}
599 ${SMALL_DATA_CTOR-${RELOCATING+${CTOR}}}
600 ${SMALL_DATA_DTOR-${RELOCATING+${DTOR}}}
601 .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
602
603 ${RELOCATING+${DATARELRO}}
604 ${OTHER_RELRO_SECTIONS}
605 ${TEXT_DYNAMIC-${DYNAMIC}}
606 ${OTHER_RELRO_SECTIONS_2}
607 ${DATA_GOT+${RELRO_NOW+${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}}}
608 ${DATA_GOT+${RELRO_NOW+${GOT}}}
609 ${DATA_GOT+${RELRO_NOW+${GOTPLT}}}
610 ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT+${GOT}}}}
611 ${RELOCATING+${DATA_SEGMENT_RELRO_END}}
612 ${INITIAL_READWRITE_SECTIONS}
613 ${DATA_SDATA+${SDATA}}
614 ${DATA_SDATA+${OTHER_SDATA_SECTIONS}}
615 ${DATA_SDATA+${SBSS}}
616 ${DATA_GOT+${RELRO_NOW-${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}}}
617 ${DATA_GOT+${RELRO_NOW-${SEPARATE_GOTPLT-${GOT}}}}
618 ${DATA_GOT+${RELRO_NOW-${GOTPLT}}}
619
620 ${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}
621
622 .data ${RELOCATING-0} :
623 {
624 ${RELOCATING+${DATA_START_SYMBOLS}}
625 *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
626 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
627 }
628 .data1 ${RELOCATING-0} : { *(.data1) }
629 ${WRITABLE_RODATA+${RODATA}}
630 ${OTHER_READWRITE_SECTIONS}
631 ${SMALL_DATA_CTOR+${RELOCATING+${CTOR}}}
632 ${SMALL_DATA_DTOR+${RELOCATING+${DTOR}}}
633 ${SDATA_GOT+${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}}
634 ${SDATA_GOT+${RELOCATING+${OTHER_GOT_SYMBOLS+. = .; ${OTHER_GOT_SYMBOLS}}}}
635 ${SDATA_GOT+${GOT}}
636 ${SDATA_GOT+${OTHER_GOT_SECTIONS}}
637 ${DATA_SDATA-${SDATA}}
638 ${DATA_SDATA-${OTHER_SDATA_SECTIONS}}
639 ${RELOCATING+${DATA_END_SYMBOLS-${CREATE_SHLIB+PROVIDE (}${USER_LABEL_PREFIX}_edata = .${CREATE_SHLIB+)}; PROVIDE (${USER_LABEL_PREFIX}edata = .);}}
640 ${RELOCATING+. = .;}
641 ${RELOCATING+${CREATE_SHLIB+PROVIDE (}${USER_LABEL_PREFIX}__bss_start = .${CREATE_SHLIB+)};}
642 ${RELOCATING+${OTHER_BSS_SYMBOLS}}
643 ${DATA_SDATA-${SBSS}}
644 ${BSS_PLT+${PLT}}
645 .${BSS_NAME} ${RELOCATING-0} :
646 {
647 ${RELOCATING+*(.dynbss)}
648 *(.${BSS_NAME}${RELOCATING+ .${BSS_NAME}.* .gnu.linkonce.b.*})
649 ${RELOCATING+*(COMMON)
650 /* Align here to ensure that the .bss section occupies space up to
651 _end. Align after .bss to ensure correct alignment even if the
652 .bss section disappears because there are no input sections.
653 FIXME: Why do we need it? When there is no .bss section, we do not
654 pad the .data section. */
655 . = ALIGN(. != 0 ? ${ALIGNMENT} : 1);}
656 }
657 ${OTHER_BSS_SECTIONS}
658 ${LARGE_BSS_AFTER_BSS+${LARGE_BSS}}
659 ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
660 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
661 EOF
662
663 LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${LARGE_DATA_ADDR-.});"
664 SHLIB_LARGE_DATA_ADDR=". = SEGMENT_START(\"ldata-segment\", ${SHLIB_LARGE_DATA_ADDR-.});"
665
666 cat <<EOF
667 ${RELOCATING+${CREATE_SHLIB-${CREATE_PIE-${LARGE_DATA_ADDR}}}}
668 ${CREATE_SHLIB+${SHLIB_LARGE_DATA_ADDR}}
669 ${CREATE_PIE+${SHLIB_LARGE_DATA_ADDR}}
670 ${LARGE_SECTIONS}
671 ${LARGE_BSS_AFTER_BSS-${LARGE_BSS}}
672 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
673 ${RELOCATING+${OTHER_END_SYMBOLS}}
674 ${RELOCATING+${END_SYMBOLS-${CREATE_SHLIB+PROVIDE (}${USER_LABEL_PREFIX}_end = .${CREATE_SHLIB+)}; PROVIDE (${USER_LABEL_PREFIX}end = .);}}
675 ${RELOCATING+${DATA_SEGMENT_END}}
676 ${TINY_DATA_SECTION}
677 ${TINY_BSS_SECTION}
678 ${STACK_ADDR+${STACK}}
679 EOF
680
681 test -z "${NON_ALLOC_DYN}" || emit_dyn
682
683 cat <<EOF
684 /* Stabs debugging sections. */
685 .stab 0 : { *(.stab) }
686 .stabstr 0 : { *(.stabstr) }
687 .stab.excl 0 : { *(.stab.excl) }
688 .stab.exclstr 0 : { *(.stab.exclstr) }
689 .stab.index 0 : { *(.stab.index) }
690 .stab.indexstr 0 : { *(.stab.indexstr) }
691
692 .comment 0 : { *(.comment) }
693
694 .gnu.build.attributes : { *(.gnu.build.attributes${RELOCATING+ .gnu.build.attributes.*}) }
695
696 EOF
697
698 . $srcdir/scripttempl/DWARF.sc
699
700 cat <<EOF
701 ${ATTRS_SECTIONS}
702 ${OTHER_SECTIONS}
703 ${RELOCATING+${OTHER_SYMBOLS}}
704 ${RELOCATING+${DISCARDED}}
705 }
706 EOF