aarch64: Add support for GNU indirect functions.
[binutils-gdb.git] / ld / scripttempl / armbpabi.sc
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.
5
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=""
19 DATA_SEGMENT_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});"
25 else
26 DATA_SEGMENT_RELRO_END=". = DATA_SEGMENT_RELRO_END (.);"
27 fi
28 fi
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 .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} :
36 {
37 ${RELOCATING+PROVIDE (__sbss_start = .);}
38 ${RELOCATING+PROVIDE (___sbss_start = .);}
39 *(.dynsbss)
40 *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
41 *(.scommon)
42 ${RELOCATING+PROVIDE (__sbss_end = .);}
43 ${RELOCATING+PROVIDE (___sbss_end = .);}
44 }"
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} :
50 {
51 ${RELOCATING+${SDATA_START_SYMBOLS}}
52 *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
53 }"
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.*}) }"
63 else
64 NO_SMALL_DATA=" "
65 fi
66 test -n "$SEPARATE_GOTPLT" && SEPARATE_GOTPLT=" "
67 INIT_ARRAY=".init_array ${RELOCATING-0} :
68 {
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.*)))
73 KEEP (*(.init_array))
74 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__init_array_end = .);}}
75 /* SymbianOS uses this symbol. */
76 ${RELOCATING+PROVIDE (SHT\$\$INIT_ARRAY\$\$Limit = .);}
77 }"
78 FINI_ARRAY=".fini_array ${RELOCATING-0} :
79 {
80 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_start = .);}}
81 KEEP (*(SORT(.fini_array.*)))
82 KEEP (*(.fini_array))
83 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__fini_array_end = .);}}
84 }"
85 CTOR=".ctors ${CONSTRUCTING-0} :
86 {
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
96 is in. */
97
98 KEEP (*crtbegin.o(.ctors))
99 KEEP (*crtbegin?.o(.ctors))
100
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 */
105
106 KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
107 KEEP (*(SORT(.ctors.*)))
108 KEEP (*(.ctors))
109 ${CONSTRUCTING+${CTOR_END}}
110 }"
111 DTOR=".dtors ${CONSTRUCTING-0} :
112 {
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.*)))
118 KEEP (*(.dtors))
119 ${CONSTRUCTING+${DTOR_END}}
120 }"
121 STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
122 {
123 ${RELOCATING+_stack = .;}
124 *(.stack)
125 }"
126
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}})"
131
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"
136 else
137 test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
138 SHLIB_BASE_ADDRESS="${SHLIB_TEXT_START_ADDR}"
139 fi
140
141 cat <<EOF
142 OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
143 "${LITTLE_OUTPUT_FORMAT}")
144 OUTPUT_ARCH(${OUTPUT_ARCH})
145 ${RELOCATING+ENTRY(${ENTRY})}
146
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. */}
156
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. */
162
163 VERSION
164 {
165 /* Give these a dummy version to work around linker lameness.
166 The name used shouldn't matter as these are all local symbols. */
167 __GNU {
168 local:
169 Image\$\$ER_RO\$\$Base;
170 Image\$\$ER_RO\$\$Limit;
171 SHT\$\$INIT_ARRAY\$\$Base;
172 SHT\$\$INIT_ARRAY\$\$Limit;
173 .ARM.exidx\$\$Base;
174 .ARM.exidx\$\$Limit;
175 };
176 }
177
178 SECTIONS
179 {
180 /* Read-only sections, merged into text segment: */
181 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR});}}}
182
183 ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+ . = ${TEXT_BASE_ADDRESS};}}}
184 ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
185 ${CREATE_PIE+${RELOCATING+. = ${SHLIB_BASE_ADDRESS};}}
186
187 /* Define Image\$\$ER_RO\$\$Base. */
188 ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Base = .);}
189
190 ${INITIAL_READONLY_SECTIONS}
191
192 EOF
193 cat <<EOF
194 .init ${RELOCATING-0} :
195 {
196 ${RELOCATING+${INIT_START}}
197 KEEP (*(.init))
198 ${RELOCATING+${INIT_END}}
199 } =${NOP-0}
200 .text ${RELOCATING-0} :
201 {
202 ${RELOCATING+${TEXT_START_SYMBOLS}}
203 *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
204 /* .gnu.warning sections are handled specially by elf32.em. */
205 *(.gnu.warning)
206 ${RELOCATING+${OTHER_TEXT_SECTIONS}}
207 } =${NOP-0}
208 .fini ${RELOCATING-0} :
209 {
210 ${RELOCATING+${FINI_START}}
211 KEEP (*(.fini))
212 ${RELOCATING+${FINI_END}}
213 } =${NOP-0}
214 /* The SymbianOS kernel requires that the PLT go at the end of the
215 text section. */
216 ${DATA_PLT-${BSS_PLT-${PLT}}}
217 ${RELOCATING+PROVIDE (__etext = .);}
218 ${RELOCATING+PROVIDE (_etext = .);}
219 ${RELOCATING+PROVIDE (etext = .);}
220
221 /* Define Image\$\$ER_RO\$\$Limit. */
222 ${RELOCATING+PROVIDE (Image\$\$ER_RO\$\$Limit = .);}
223
224 ${WRITABLE_RODATA-${RODATA}}
225 .rodata1 ${RELOCATING-0} : { *(.rodata1) }
226 ${CREATE_SHLIB-${SDATA2}}
227 ${CREATE_SHLIB-${SBSS2}}
228
229 /* On SymbianOS, put .init_array and friends in the read-only
230 segment; there is no runtime relocation applied to these
231 arrays. */
232
233 .preinit_array ${RELOCATING-0} :
234 {
235 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_start = .);}}
236 KEEP (*(.preinit_array))
237 ${RELOCATING+${CREATE_SHLIB-PROVIDE_HIDDEN (__preinit_array_end = .);}}
238 }
239 ${RELOCATING+${INIT_ARRAY}}
240 ${RELOCATING+${FINI_ARRAY}}
241
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.*) }
246
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};}}
252
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.*) }
256
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)} }
260
261 ${RELOCATING+${CTOR}}
262 ${RELOCATING+${DTOR}}
263 .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
264
265 ${RELOCATING+${DATARELRO}}
266 ${OTHER_RELRO_SECTIONS}
267 ${RELOCATING+${DATA_SEGMENT_RELRO_END}}
268
269 ${DATA_PLT+${PLT_BEFORE_GOT-${PLT}}}
270
271 .data ${RELOCATING-0} :
272 {
273 ${RELOCATING+${DATA_START_SYMBOLS}}
274 *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
275 ${CONSTRUCTING+SORT(CONSTRUCTORS)}
276 }
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}}
283 ${SDATA}
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}}
290 ${SBSS}
291 ${BSS_PLT+${PLT}}
292 .bss ${RELOCATING-0} :
293 {
294 *(.dynbss)
295 *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
296 *(COMMON)
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});}
301 }
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}}
308
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}}
318
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) }
326
327 .comment 0 : { *(.comment) }
328 EOF
329
330 . $srcdir/scripttempl/DWARF.sc
331
332 cat <<EOF
333 ${STACK_ADDR+${STACK}}
334 ${OTHER_SECTIONS}
335 ${RELOCATING+${OTHER_SYMBOLS}}
336 ${RELOCATING+${DISCARDED}}
337 EOF
338
339 # These relocations sections are part of the read-only segment in SVR4
340 # executables, but are not mapped in BPABI executables.
341 if [ "x$COMBRELOC" = x ]; then
342 COMBRELOCCAT=cat
343 else
344 COMBRELOCCAT="cat > $COMBRELOC"
345 fi
346 eval $COMBRELOCCAT <<EOF
347 .rel.init 0 : { *(.rel.init) }
348 .rela.init 0 : { *(.rela.init) }
349 .rel.text 0 : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
350 .rela.text 0 : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
351 .rel.fini 0 : { *(.rel.fini) }
352 .rela.fini 0 : { *(.rela.fini) }
353 .rel.rodata 0 : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
354 .rela.rodata 0 : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
355 ${OTHER_READONLY_RELOC_SECTIONS}
356 .rel.data.rel.ro 0 : { *(.rel.data.rel.ro${RELOCATING+ .rel.data.rel.ro.*}) }
357 .rela.data.rel.ro 0 : { *(.rela.data.rel.ro${RELOCATING+ .rela.data.rel.ro.*}) }
358 .rel.data 0 : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
359 .rela.data 0 : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
360 .rel.tdata 0 : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
361 .rela.tdata 0 : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
362 .rel.tbss 0 : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
363 .rela.tbss 0 : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
364 .rel.ctors 0 : { *(.rel.ctors) }
365 .rela.ctors 0 : { *(.rela.ctors) }
366 .rel.dtors 0 : { *(.rel.dtors) }
367 .rela.dtors 0 : { *(.rela.dtors) }
368 ${REL_SDATA}
369 ${REL_SBSS}
370 ${REL_SDATA2}
371 ${REL_SBSS2}
372 .rel.bss 0 : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
373 .rela.bss 0 : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
374 .rel.init_array 0 : { *(.rel.init_array) }
375 .rela.init_array 0 : { *(.rela.init_array) }
376 .rel.fini_array 0 : { *(.rel.fini_array) }
377 .rela.fini_array 0 : { *(.rela.fini_array) }
378 EOF
379 if [ -n "$COMBRELOC" ]; then
380 cat <<EOF
381 .rel.dyn 0 :
382 {
383 EOF
384 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
385 cat <<EOF
386 }
387 .rela.dyn 0 :
388 {
389 EOF
390 sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
391 cat <<EOF
392 }
393 EOF
394 fi
395 cat <<EOF
396 .rel.plt 0 : { *(.rel.plt) }
397 .rela.plt 0 : { *(.rela.plt) }
398 ${OTHER_PLT_RELOC_SECTIONS}
399 .rel.other 0 : { *(.rel.*) }
400 .rela.other 0 : { *(.rela.*) }
401 .reli.other 0 : { *(.reli.*) }
402 }
403 EOF