1 # This variant of elf.sc is used for ARM BPABI platforms, like Symbian
2 # OS, where a separate postlinker will operated on the generated
3 # executable or shared object. See elf.sc for configuration variables
4 # that apply; only BPABI-specific variables will be noted here.
6 test -z "$ENTRY" && ENTRY=_start
7 test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
8 test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
9 if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
10 test -z "${ELFSIZE}" && ELFSIZE=32
11 test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
12 test "$LD_FLAG" = "N" && DATA_ADDR=.
13 test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
14 test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
15 test -n "$RELRO_NOW" && unset SEPARATE_GOTPLT
16 DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
17 DATA_SEGMENT_RELRO_END=""
18 DATA_SEGMENT_RELRO_GOTPLT_END=""
20 if test -n "${COMMONPAGESIZE}"; then
21 DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
22 DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
23 if test -n "${SEPARATE_GOTPLT}"; then
24 DATA_SEGMENT_RELRO_GOTPLT_END=". = DATA_SEGMENT_RELRO_END (. + ${SEPARATE_GOTPLT});"
26 DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (.);"
29 INTERP=".interp 0 : { *(.interp) }"
30 PLT=".plt ${RELOCATING-0} : { *(.plt) }"
31 RODATA=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
32 DATARELRO=".data.rel.ro : { *(.data.rel.ro.local) *(.data.rel.ro*) }"
33 DISCARDED="/DISCARD/ : { *(.note.GNU-stack) *(.gnu_debuglink) *(.gnu.lto_*) }"
34 if test -z "${NO_SMALL_DATA}"; then
35 SBSS=".sbss ${RELOCATING-0} :
37 ${RELOCATING+PROVIDE (__sbss_start = .);}
38 ${RELOCATING+PROVIDE (___sbss_start = .);}
40 *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
42 ${RELOCATING+PROVIDE (__sbss_end = .);}
43 ${RELOCATING+PROVIDE (___sbss_end = .);}
45 SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }"
46 SDATA="/* We want the small data sections together, so single-instruction offsets
47 can access them all, and initialized data all before uninitialized, so
48 we can shorten the on-disk segment size. */
49 .sdata ${RELOCATING-0} :
51 ${RELOCATING+${SDATA_START_SYMBOLS}}
52 *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
54 SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"
55 REL_SDATA=".rel.sdata ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }
56 .rela.sdata ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"
57 REL_SBSS=".rel.sbss ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }
58 .rela.sbss ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"
59 REL_SDATA2=".rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }
60 .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"
61 REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
62 .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
66 test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "
67 INIT_ARRAY=".init_array ${RELOCATING-0} :
69 /* SymbianOS uses this symbol. */
70 ${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Base = .);}
71 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__init_array_start = .);}}
72 KEEP (*(SORT(.init_array.*)))
74 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__init_array_end = .);}}
75 /* SymbianOS uses this symbol. */
76 ${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Limit = .);}
78 FINI_ARRAY=".fini_array ${RELOCATING-0} :
80 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_start = .);}}
81 KEEP (*(SORT(.fini_array.*)))
83 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_end = .);}}
85 CTOR=".ctors ${CONSTRUCTING-0} :
87 ${CONSTRUCTING+${CTOR_START}}
88 /* gcc uses crtbegin.o to find the start of
89 the constructors, so we make sure it is
90 first. Because this is a wildcard, it
91 doesn't matter if the user does not
92 actually link against crtbegin.o; the
93 linker won't look for a file to match a
94 wildcard. The wildcard also means that it
95 doesn't matter which directory crtbegin.o
98 KEEP (*crtbegin.o(.ctors))
99 KEEP (*crtbegin?.o(.ctors))
101 /* We don't want to include the .ctor section from
102 the crtend.o file until after the sorted ctors.
103 The .ctor section from the crtend file contains the
104 end of ctors marker and it must be last */
106 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
107 KEEP (*(SORT(.ctors.*)))
109 ${CONSTRUCTING+${CTOR_END}}
111 DTOR=".dtors ${CONSTRUCTING-0} :
113 ${CONSTRUCTING+${DTOR_START}}
114 KEEP (*crtbegin.o(.dtors))
115 KEEP (*crtbegin?.o(.dtors))
116 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
117 KEEP (*(SORT(.dtors.*)))
119 ${CONSTRUCTING+${DTOR_END}}
121 STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
123 ${RELOCATING+_stack = .;}
127 TEXT_START_ADDR="SEGMENT_START(\"text\", ${TEXT_START_ADDR})"
128 SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text\", ${SHLIB_TEXT_START_ADDR:-0})"
129 DATA_ADDR="SEGMENT_START(\"data\", ${DATA_ADDR-${DATA_SEGMENT_ALIGN}})"
130 SHLIB_DATA_ADDR="SEGMENT_START(\"data\", ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}})"
132 # if this is for an embedded system, don't add SIZEOF_HEADERS.
133 if [ -z "$EMBEDDED" ]; then
134 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
135 SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR} + SIZEOF_HEADERS"
137 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
138 SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR}"
142 OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
143 "${LITTLE_OUTPUT_FORMAT}")
144 OUTPUT_ARCH(${OUTPUT_ARCH})
145 ${RELOCATING+ENTRY(${ENTRY})}
147 ${RELOCATING+${LIB_SEARCH_DIRS}}
148 ${RELOCATING+/* Do we need any of these for elf?
149 __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
150 ${RELOCATING+${EXECUTABLE_SYMBOLS}}
151 ${RELOCATING+${INPUT_FILES}}
152 ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
153 if gld -r is used and the intermediate file has sections starting
154 at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
155 bug. But for now assigning the zero vmas works. */}
157 /* ARM's proprietary toolchain generate these symbols to match the start
158 and end of particular sections of the image. SymbianOS uses these
159 symbols. We provide them for compatibility with ARM's toolchains.
160 These symbols should be bound locally; each shared object may define
161 its own version of these symbols. */
165 /* Give these a dummy version to work around linker lameness.
166 The name used shouldn't matter as these are all local symbols. */
169 Image\$\$ER_RO\$\$Base;
170 Image\$\$ER_RO\$\$Limit;
171 SHT\$\$INIT_ARRAY\$\$Base;
172 SHT\$\$INIT_ARRAY\$\$Limit;
180 /* Read-only sections, merged into text segment: */
181 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR});}}}
183 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+ . = ${TEXT_BASE_ADDRESS};}}}
184 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
185 ${CREATE_PIE+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
187 /* Define Image\$\$ER_RO\$\$Base. */
188 ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Base = .);}
190 ${INITIAL_READONLY_SECTIONS}
194 .init ${RELOCATING-0} :
196 ${RELOCATING+${INIT_START}}
198 ${RELOCATING+${INIT_END}}
200 .text ${RELOCATING-0} :
202 ${RELOCATING+${TEXT_START_SYMBOLS}}
203 *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
204 /* .gnu.warning sections are handled specially by elf32.em. */
206 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
208 .fini ${RELOCATING-0} :
210 ${RELOCATING+${FINI_START}}
212 ${RELOCATING+${FINI_END}}
214 /* The SymbianOS kernel requires that the PLT go at the end of the
216 ${DATA_PLT-${BSS_PLT-${PLT}}}
217 ${RELOCATING+PROVIDE (__etext = .);}
218 ${RELOCATING+PROVIDE (_etext = .);}
219 ${RELOCATING+PROVIDE (etext = .);}
221 /* Define Image\$\$ER_RO\$\$Limit. */
222 ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Limit = .);}
224 ${WRITABLE_RODATA-${RODATA}}
225 .rodata1 ${RELOCATING-0} : { *(.rodata1) }
226 ${CREATE_SHLIB-${SDATA2}}
227 ${CREATE_SHLIB-${SBSS2}}
229 /* On SymbianOS, put .init_array and friends in the read-only
230 segment; there is no runtime relocation applied to these
233 .preinit_array ${RELOCATING-0} :
235 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_start = .);}}
236 KEEP (*(.preinit_array))
237 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_end = .);}}
239 ${RELOCATING+${INIT_ARRAY}}
240 ${RELOCATING+${FINI_ARRAY}}
242 ${OTHER_READONLY_SECTIONS}
243 .eh_frame_hdr : { *(.eh_frame_hdr) }
244 .eh_frame ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.eh_frame)) }
245 .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }
247 /* Adjust the address for the data segment. We want to adjust up to
248 the same address within the page on the next page up. */
249 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR};}}}
250 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}
251 ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR};}}
253 /* Exception handling */
254 .eh_frame ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.eh_frame)) }
255 .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { KEEP (*(.gcc_except_table)) *(.gcc_except_table.*) }
257 /* Thread Local Storage sections */
258 .tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
259 .tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
261 ${RELOCATING+${CTOR}}
262 ${RELOCATING+${DTOR}}
263 .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
265 ${RELOCATING+${DATARELRO}}
266 ${OTHER_RELRO_SECTIONS}
267 ${RELOCATING+${DATA_SEGMENT_RELRO_END}}
269 ${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}
271 .data ${RELOCATING-0} :
273 ${RELOCATING+${DATA_START_SYMBOLS}}
274 *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
275 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
277 .data1 ${RELOCATING-0} : { *(.data1) }
278 ${WRITABLE_RODATA+${RODATA}}
279 ${OTHER_READWRITE_SECTIONS}
280 ${DATA_PLT+${PLT_BEFORE_GOT+${PLT}}}
281 ${CREATE_SHLIB+${SDATA2}}
282 ${CREATE_SHLIB+${SBSS2}}
284 ${OTHER_SDATA_SECTIONS}
285 ${RELOCATING+_edata = .;}
286 ${RELOCATING+PROVIDE (edata = .);}
287 ${RELOCATING+. = DEFINED(__bss_segment_start) ? __bss_segment_start : .;}
288 ${RELOCATING+__bss_start = .;}
289 ${RELOCATING+${OTHER_BSS_SYMBOLS}}
292 .bss ${RELOCATING-0} :
295 *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
297 /* Align here to ensure that the .bss section occupies space up to
298 _end. Align after .bss to ensure correct alignment even if the
299 .bss section disappears because there are no input sections. */
300 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
302 ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
303 ${RELOCATING+. = ALIGN(${ALIGNMENT});}
304 ${RELOCATING+${OTHER_END_SYMBOLS}}
305 ${RELOCATING+_end = .;}
306 ${RELOCATING+PROVIDE (end = .);}
307 ${RELOCATING+${DATA_SEGMENT_END}}
309 /* These sections are not mapped under the BPABI. */
310 .dynamic 0 : { *(.dynamic) }
311 .hash 0 : { *(.hash) }
312 .dynsym 0 : { *(.dynsym) }
313 .dynstr 0 : { *(.dynstr) }
314 .gnu.version 0 : { *(.gnu.version) }
315 .gnu.version_d 0: { *(.gnu.version_d) }
316 .gnu.version_r 0: { *(.gnu.version_r) }
317 ${CREATE_SHLIB-${INTERP}}
319 /* Stabs debugging sections. */
320 .stab 0 : { *(.stab) }
321 .stabstr 0 : { *(.stabstr) }
322 .stab.excl 0 : { *(.stab.excl) }
323 .stab.exclstr 0 : { *(.stab.exclstr) }
324 .stab.index 0 : { *(.stab.index) }
325 .stab.indexstr 0 : { *(.stab.indexstr) }
327 .comment 0 : { *(.comment) }
329 /* DWARF debug sections.
330 Symbols in the DWARF debugging sections are relative to the beginning
331 of the section so we begin them at 0. */
334 .debug 0 : { *(.debug) }
335 .line 0 : { *(.line) }
337 /* GNU DWARF 1 extensions */
338 .debug_srcinfo 0 : { *(.debug_srcinfo) }
339 .debug_sfnames 0 : { *(.debug_sfnames) }
341 /* DWARF 1.1 and DWARF 2 */
342 .debug_aranges 0 : { *(.debug_aranges) }
343 .debug_pubnames 0 : { *(.debug_pubnames) }
346 .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
347 .debug_abbrev 0 : { *(.debug_abbrev) }
348 .debug_line 0 : { *(.debug_line) }
349 .debug_frame 0 : { *(.debug_frame) }
350 .debug_str 0 : { *(.debug_str) }
351 .debug_loc 0 : { *(.debug_loc) }
352 .debug_macinfo 0 : { *(.debug_macinfo) }
354 /* SGI/MIPS DWARF 2 extensions */
355 .debug_weaknames 0 : { *(.debug_weaknames) }
356 .debug_funcnames 0 : { *(.debug_funcnames) }
357 .debug_typenames 0 : { *(.debug_typenames) }
358 .debug_varnames 0 : { *(.debug_varnames) }
360 ${STACK_ADDR+${STACK}}
362 ${RELOCATING+${OTHER_SYMBOLS}}
363 ${RELOCATING+${DISCARDED}}
366 # These relocations sections are part of the read-only segment in SVR4
367 # executables, but are not mapped in BPABI executables.
368 if [ "x$COMBRELOC" = x ]; then
371 COMBRELOCCAT="cat > $COMBRELOC"
373 eval $COMBRELOCCAT <<EOF
374 .rel.init 0 : { *(.rel.init) }
375 .rela.init 0 : { *(.rela.init) }
376 .rel.text 0 : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
377 .rela.text 0 : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
378 .rel.fini 0 : { *(.rel.fini) }
379 .rela.fini 0 : { *(.rela.fini) }
380 .rel.rodata 0 : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
381 .rela.rodata 0 : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
382 ${OTHER_READONLY_RELOC_SECTIONS}
383 .rel.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }
384 .rela.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+*}) }
385 .rel.data 0 : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
386 .rela.data 0 : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
387 .rel.tdata 0 : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
388 .rela.tdata 0 : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
389 .rel.tbss 0 : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
390 .rela.tbss 0 : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
391 .rel.ctors 0 : { *(.rel.ctors) }
392 .rela.ctors 0 : { *(.rela.ctors) }
393 .rel.dtors 0 : { *(.rel.dtors) }
394 .rela.dtors 0 : { *(.rela.dtors) }
399 .rel.bss 0 : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
400 .rela.bss 0 : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
401 .rel.init_array 0 : { *(.rel.init_array) }
402 .rela.init_array 0 : { *(.rela.init_array) }
403 .rel.fini_array 0 : { *(.rel.fini_array) }
404 .rela.fini_array 0 : { *(.rela.fini_array) }
406 if [ -n "$COMBRELOC" ]; then
411 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
417 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
423 .rel.plt 0 : { *(.rel.plt) }
424 .rela.plt 0 : { *(.rela.plt) }
425 ${OTHER_PLT_RELOC_SECTIONS}
426 .rel.other 0 : { *(.rel.*) }
427 .rela.other 0 : { *(.rela.*) }
428 .reli.other 0 : { *(.reli.*) }