elfarc.sc 17 KB

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  1. #
  2. # Unusual variables checked by this code:
  3. # NOP - four byte opcode for no-op (defaults to 0)
  4. # NO_SMALL_DATA - no .sbss/.sbss2/.sdata/.sdata2 sections if not
  5. # empty.
  6. # DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
  7. # INITIAL_READONLY_SECTIONS - at start of text segment
  8. # OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
  9. # (e.g., .PARISC.milli)
  10. # OTHER_TEXT_SECTIONS - these get put in .text when relocating
  11. # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
  12. # (e.g., .PARISC.global)
  13. # OTHER_BSS_SECTIONS - other than .bss .sbss ...
  14. # OTHER_SECTIONS - at the end
  15. # EXECUTABLE_SYMBOLS - symbols that must be defined for an
  16. # executable (e.g., _DYNAMIC_LINK)
  17. # TEXT_START_SYMBOLS - symbols that appear at the start of the
  18. # .text section.
  19. # DATA_START_SYMBOLS - symbols that appear at the start of the
  20. # .data section.
  21. # OTHER_GOT_SYMBOLS - symbols defined just before .got.
  22. # OTHER_GOT_SECTIONS - sections just after .got.
  23. # OTHER_SDATA_SECTIONS - sections just after .sdata.
  24. # OTHER_BSS_SYMBOLS - symbols that appear at the start of the
  25. # .bss section besides __bss_start.
  26. # DATA_PLT - .plt should be in data segment, not text segment.
  27. # BSS_PLT - .plt should be in bss segment
  28. # TEXT_DYNAMIC - .dynamic in text segment, not data segment.
  29. # EMBEDDED - whether this is for an embedded system.
  30. # SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
  31. # start address of shared library.
  32. # INPUT_FILES - INPUT command of files to always include
  33. # WRITABLE_RODATA - if set, the .rodata section should be writable
  34. # INIT_START, INIT_END - statements just before and just after
  35. # combination of .init sections.
  36. # FINI_START, FINI_END - statements just before and just after
  37. # combination of .fini sections.
  38. # STACK_ADDR - start of a .stack section.
  39. # OTHER_END_SYMBOLS - symbols to place right at the end of the script.
  40. #
  41. # When adding sections, do note that the names of some sections are used
  42. # when specifying the start address of the next.
  43. #
  44. # Many sections come in three flavours. There is the 'real' section,
  45. # like ".data". Then there are the per-procedure or per-variable
  46. # sections, generated by -ffunction-sections and -fdata-sections in GCC,
  47. # and useful for --gc-sections, which for a variable "foo" might be
  48. # ".data.foo". Then there are the linkonce sections, for which the linker
  49. # eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
  50. # The exact correspondences are:
  51. #
  52. # Section Linkonce section
  53. # .text .gnu.linkonce.t.foo
  54. # .rodata .gnu.linkonce.r.foo
  55. # .data .gnu.linkonce.d.foo
  56. # .bss .gnu.linkonce.b.foo
  57. # .sdata .gnu.linkonce.s.foo
  58. # .sbss .gnu.linkonce.sb.foo
  59. # .sdata2 .gnu.linkonce.s2.foo
  60. # .sbss2 .gnu.linkonce.sb2.foo
  61. # .debug_info .gnu.linkonce.wi.foo
  62. # .tdata .gnu.linkonce.td.foo
  63. # .tbss .gnu.linkonce.tb.foo
  64. #
  65. # Each of these can also have corresponding .rel.* and .rela.* sections.
  66. test -z "$ENTRY" && ENTRY=start
  67. test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
  68. test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
  69. # If we request a big endian toolchain, give a big endian linker
  70. test "${ARC_ENDIAN}" = "big" && OUTPUT_FORMAT=${BIG_OUTPUT_FORMAT}
  71. if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
  72. test -z "${ELFSIZE}" && ELFSIZE=32
  73. test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
  74. test "$LD_FLAG" = "N" && DATA_ADDR=.
  75. test -n "$CREATE_SHLIB$CREATE_PIE" && test -n "$SHLIB_DATA_ADDR" && COMMONPAGESIZE=""
  76. test -z "$CREATE_SHLIB$CREATE_PIE" && test -n "$DATA_ADDR" && COMMONPAGESIZE=""
  77. DATA_SEGMENT_ALIGN="ALIGN(${SEGMENT_SIZE}) + (. & (${MAXPAGESIZE} - 1))"
  78. DATA_SEGMENT_END=""
  79. if test -n "${COMMONPAGESIZE}"; then
  80. DATA_SEGMENT_ALIGN="ALIGN (${SEGMENT_SIZE}) - ((${MAXPAGESIZE} - .) & (${MAXPAGESIZE} - 1)); . = DATA_SEGMENT_ALIGN (${MAXPAGESIZE}, ${COMMONPAGESIZE})"
  81. DATA_SEGMENT_END=". = DATA_SEGMENT_END (.);"
  82. fi
  83. INTERP=".interp ${RELOCATING-0} : { *(.interp) }"
  84. PLT=".plt ${RELOCATING-0} : { *(.plt) }"
  85. test -z "$GOT" && GOT=".got ${RELOCATING-0} : {${RELOCATING+ *(.got.plt)} *(.got) }"
  86. DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }"
  87. RODATA=".rodata ${RELOCATING-0} : { *(.rodata${RELOCATING+ .rodata.* .gnu.linkonce.r.*}) }"
  88. STACKNOTE="/DISCARD/ : { *(.note.GNU-stack) }"
  89. if test -z "${NO_SMALL_DATA}"; then
  90. SBSS=".sbss ${RELOCATING-0} :
  91. {
  92. ${RELOCATING+PROVIDE (__sbss_start = .);}
  93. ${RELOCATING+PROVIDE (___sbss_start = .);}
  94. ${RELOCATING+*(.dynsbss)}
  95. *(.sbss${RELOCATING+ .sbss.* .gnu.linkonce.sb.*})
  96. ${RELOCATING+*(.scommon)}
  97. ${RELOCATING+PROVIDE (__sbss_end = .);}
  98. ${RELOCATING+PROVIDE (___sbss_end = .);}
  99. }"
  100. SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2${RELOCATING+ .sbss2.* .gnu.linkonce.sb2.*}) }"
  101. SDATA="/* We want the small data sections together, so single-instruction offsets
  102. can access them all, and initialized data all before uninitialized, so
  103. we can shorten the on-disk segment size. */
  104. .sdata ${RELOCATING-0} :
  105. {
  106. ${RELOCATING+${SDATA_START_SYMBOLS}}
  107. *(.sdata${RELOCATING+ .sdata.* .gnu.linkonce.s.*})
  108. }"
  109. SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2${RELOCATING+ .sdata2.* .gnu.linkonce.s2.*}) }"
  110. REL_SDATA=".rel.sdata ${RELOCATING-0} : { *(.rel.sdata${RELOCATING+ .rel.sdata.* .rel.gnu.linkonce.s.*}) }
  111. .rela.sdata ${RELOCATING-0} : { *(.rela.sdata${RELOCATING+ .rela.sdata.* .rela.gnu.linkonce.s.*}) }"
  112. REL_SBSS=".rel.sbss ${RELOCATING-0} : { *(.rel.sbss${RELOCATING+ .rel.sbss.* .rel.gnu.linkonce.sb.*}) }
  113. .rela.sbss ${RELOCATING-0} : { *(.rela.sbss${RELOCATING+ .rela.sbss.* .rela.gnu.linkonce.sb.*}) }"
  114. REL_SDATA2=".rel.sdata2 ${RELOCATING-0} : { *(.rel.sdata2${RELOCATING+ .rel.sdata2.* .rel.gnu.linkonce.s2.*}) }
  115. .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2${RELOCATING+ .rela.sdata2.* .rela.gnu.linkonce.s2.*}) }"
  116. REL_SBSS2=".rel.sbss2 ${RELOCATING-0} : { *(.rel.sbss2${RELOCATING+ .rel.sbss2.* .rel.gnu.linkonce.sb2.*}) }
  117. .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2${RELOCATING+ .rela.sbss2.* .rela.gnu.linkonce.sb2.*}) }"
  118. fi
  119. INIT_ARRAY=".init_array ${RELOCATING-0} :
  120. {
  121. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_start = .);}}
  122. KEEP (*(SORT(.init_array.*)))
  123. KEEP (*(.init_array))
  124. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__init_array_end = .);}}
  125. }"
  126. FINI_ARRAY=".fini_array ${RELOCATING-0} :
  127. {
  128. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_start = .);}}
  129. KEEP (*(SORT(.fini_array.*)))
  130. KEEP (*(.fini_array))
  131. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__fini_array_end = .);}}
  132. }"
  133. CTOR=".ctors ${CONSTRUCTING-0} :
  134. {
  135. ${CONSTRUCTING+${CTOR_START}}
  136. /* gcc uses crtbegin.o to find the start of
  137. the constructors, so we make sure it is
  138. first. Because this is a wildcard, it
  139. doesn't matter if the user does not
  140. actually link against crtbegin.o; the
  141. linker won't look for a file to match a
  142. wildcard. The wildcard also means that it
  143. doesn't matter which directory crtbegin.o
  144. is in. */
  145. KEEP (*crtbegin*.o(.ctors))
  146. /* We don't want to include the .ctor section from
  147. from the crtend.o file until after the sorted ctors.
  148. The .ctor section from the crtend file contains the
  149. end of ctors marker and it must be last */
  150. KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .ctors))
  151. KEEP (*(SORT(.ctors.*)))
  152. KEEP (*(.ctors))
  153. ${CONSTRUCTING+${CTOR_END}}
  154. }"
  155. DTOR=".dtors ${CONSTRUCTING-0} :
  156. {
  157. ${CONSTRUCTING+${DTOR_START}}
  158. KEEP (*crtbegin*.o(.dtors))
  159. KEEP (*(EXCLUDE_FILE (*crtend*.o $OTHER_EXCLUDE_FILES) .dtors))
  160. KEEP (*(SORT(.dtors.*)))
  161. KEEP (*(.dtors))
  162. ${CONSTRUCTING+${DTOR_END}}
  163. }"
  164. STACK=" .stack ${RELOCATING-0}${RELOCATING+${STACK_ADDR}} :
  165. {
  166. ${RELOCATING+_stack = .;}
  167. *(.stack)
  168. }"
  169. TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${TEXT_START_ADDR})"
  170. SHLIB_TEXT_START_ADDR="SEGMENT_START(\"text-segment\", ${SHLIB_TEXT_START_ADDR:-0})"
  171. # if this is for an embedded system, don't add SIZEOF_HEADERS.
  172. if [ -z "$EMBEDDED" ]; then
  173. test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
  174. else
  175. test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
  176. fi
  177. cat <<EOF
  178. OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
  179. "${LITTLE_OUTPUT_FORMAT}")
  180. OUTPUT_ARCH(${OUTPUT_ARCH})
  181. ${RELOCATING+ENTRY(${ENTRY})}
  182. ${RELOCATING+${LIB_SEARCH_DIRS}}
  183. ${RELOCATING+/* Do we need any of these for elf?
  184. __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */}
  185. ${RELOCATING+${EXECUTABLE_SYMBOLS}}
  186. ${RELOCATING+${INPUT_FILES}}
  187. ${RELOCATING- /* For some reason, the Solaris linker makes bad executables
  188. if gld -r is used and the intermediate file has sections starting
  189. at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld
  190. bug. But for now assigning the zero vmas works. */}
  191. SECTIONS
  192. {
  193. /* Read-only sections, merged into text segment: */
  194. ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+PROVIDE (__executable_start = ${TEXT_START_ADDR}); . = ${TEXT_BASE_ADDRESS};}}}
  195. ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
  196. ${CREATE_PIE+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
  197. ${CREATE_SHLIB-${INTERP}}
  198. ${INITIAL_READONLY_SECTIONS}
  199. ${TEXT_DYNAMIC+${DYNAMIC}}
  200. .hash ${RELOCATING-0} : { *(.hash) }
  201. .dynsym ${RELOCATING-0} : { *(.dynsym) }
  202. .dynstr ${RELOCATING-0} : { *(.dynstr) }
  203. .gnu.version ${RELOCATING-0} : { *(.gnu.version) }
  204. .gnu.version_d ${RELOCATING-0}: { *(.gnu.version_d) }
  205. .gnu.version_r ${RELOCATING-0}: { *(.gnu.version_r) }
  206. EOF
  207. if [ "x$COMBRELOC" = x ]; then
  208. COMBRELOCCAT=cat
  209. else
  210. COMBRELOCCAT="cat > $COMBRELOC"
  211. fi
  212. eval $COMBRELOCCAT <<EOF
  213. .rel.init ${RELOCATING-0} : { *(.rel.init) }
  214. .rela.init ${RELOCATING-0} : { *(.rela.init) }
  215. .rel.text ${RELOCATING-0} : { *(.rel.text${RELOCATING+ .rel.text.* .rel.gnu.linkonce.t.*}) }
  216. .rela.text ${RELOCATING-0} : { *(.rela.text${RELOCATING+ .rela.text.* .rela.gnu.linkonce.t.*}) }
  217. .rel.fini ${RELOCATING-0} : { *(.rel.fini) }
  218. .rela.fini ${RELOCATING-0} : { *(.rela.fini) }
  219. .rel.rodata ${RELOCATING-0} : { *(.rel.rodata${RELOCATING+ .rel.rodata.* .rel.gnu.linkonce.r.*}) }
  220. .rela.rodata ${RELOCATING-0} : { *(.rela.rodata${RELOCATING+ .rela.rodata.* .rela.gnu.linkonce.r.*}) }
  221. ${OTHER_READONLY_RELOC_SECTIONS}
  222. .rel.data ${RELOCATING-0} : { *(.rel.data${RELOCATING+ .rel.data.* .rel.gnu.linkonce.d.*}) }
  223. .rela.data ${RELOCATING-0} : { *(.rela.data${RELOCATING+ .rela.data.* .rela.gnu.linkonce.d.*}) }
  224. .rel.tdata ${RELOCATING-0} : { *(.rel.tdata${RELOCATING+ .rel.tdata.* .rel.gnu.linkonce.td.*}) }
  225. .rela.tdata ${RELOCATING-0} : { *(.rela.tdata${RELOCATING+ .rela.tdata.* .rela.gnu.linkonce.td.*}) }
  226. .rel.tbss ${RELOCATING-0} : { *(.rel.tbss${RELOCATING+ .rel.tbss.* .rel.gnu.linkonce.tb.*}) }
  227. .rela.tbss ${RELOCATING-0} : { *(.rela.tbss${RELOCATING+ .rela.tbss.* .rela.gnu.linkonce.tb.*}) }
  228. .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) }
  229. .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) }
  230. .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) }
  231. .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) }
  232. .rel.got ${RELOCATING-0} : { *(.rel.got) }
  233. .rela.got ${RELOCATING-0} : { *(.rela.got) }
  234. ${OTHER_GOT_RELOC_SECTIONS}
  235. ${REL_SDATA}
  236. ${REL_SBSS}
  237. ${REL_SDATA2}
  238. ${REL_SBSS2}
  239. .rel.bss ${RELOCATING-0} : { *(.rel.bss${RELOCATING+ .rel.bss.* .rel.gnu.linkonce.b.*}) }
  240. .rela.bss ${RELOCATING-0} : { *(.rela.bss${RELOCATING+ .rela.bss.* .rela.gnu.linkonce.b.*}) }
  241. EOF
  242. if [ -n "$COMBRELOC" ]; then
  243. cat <<EOF
  244. .rel.dyn ${RELOCATING-0} :
  245. {
  246. EOF
  247. sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/ \1/' $COMBRELOC
  248. cat <<EOF
  249. }
  250. .rela.dyn ${RELOCATING-0} :
  251. {
  252. EOF
  253. sed -e '/^[ ]*[{}][ ]*$/d;/:[ ]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/ \1/' $COMBRELOC
  254. cat <<EOF
  255. }
  256. EOF
  257. fi
  258. cat <<EOF
  259. .rel.plt ${RELOCATING-0} : { *(.rel.plt) }
  260. .rela.plt ${RELOCATING-0} : { *(.rela.plt) }
  261. ${OTHER_PLT_RELOC_SECTIONS}
  262. .init ${RELOCATING-0} :
  263. {
  264. ${RELOCATING+${INIT_START}}
  265. KEEP (*(SORT_NONE(.init)))
  266. ${RELOCATING+${INIT_END}}
  267. } =${NOP-0}
  268. ${DATA_PLT-${BSS_PLT-${PLT}}}
  269. .jlitab ${RELOCATING-0} :
  270. {
  271. ${RELOCATING+${JLI_START_TABLE}}
  272. ${RELOCATING+jlitab*.o(.jlitab*)}
  273. *(.jlitab${RELOCATING+*})
  274. } =${NOP-0}
  275. .text ${RELOCATING-0} :
  276. {
  277. ${RELOCATING+${TEXT_START_SYMBOLS}}
  278. *(.text .stub${RELOCATING+ .text.* .gnu.linkonce.t.*})
  279. /* .gnu.warning sections are handled specially by elf.em. */
  280. *(.gnu.warning)
  281. ${RELOCATING+${OTHER_TEXT_SECTIONS}}
  282. } =${NOP-0}
  283. .text.init ${RELOCATING-0} :
  284. {
  285. *(.text.init)
  286. } =${NOP-0}
  287. .fini ${RELOCATING-0} :
  288. {
  289. ${RELOCATING+${FINI_START}}
  290. KEEP (*(SORT_NONE(.fini)))
  291. ${RELOCATING+${FINI_END}}
  292. } =${NOP-0}
  293. ${RELOCATING+PROVIDE (__etext = .);}
  294. ${RELOCATING+PROVIDE (_etext = .);}
  295. ${RELOCATING+PROVIDE (etext = .);}
  296. ${WRITABLE_RODATA-${RODATA}}
  297. .rodata1 ${RELOCATING-0} : { *(.rodata1) }
  298. ${CREATE_SHLIB-${SDATA2}}
  299. ${CREATE_SHLIB-${SBSS2}}
  300. ${OTHER_READONLY_SECTIONS}
  301. .eh_frame_hdr ${RELOCATING-0} : { *(.eh_frame_hdr) }
  302. .gcc_except_table ${RELOCATING-0} : ONLY_IF_RO { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
  303. /* Adjust the address for the data segment. We want to adjust up to
  304. the same address within the page on the next page up. */
  305. ${CREATE_SHLIB-${CREATE_PIE-${RELOCATING+. = ${DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}}
  306. ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
  307. ${CREATE_PIE+${RELOCATING+. = ${SHLIB_DATA_ADDR-${DATA_SEGMENT_ALIGN}};}}
  308. /* Exception handling */
  309. .gcc_except_table ${RELOCATING-0} : ONLY_IF_RW { *(.gcc_except_table${RELOCATING+ .gcc_except_table.*}) }
  310. /* Ensure the __preinit_array_start label is properly aligned. We
  311. could instead move the label definition inside the section, but
  312. the linker would then create the section even if it turns out to
  313. be empty, which isn't pretty. */
  314. ${RELOCATING+. = ALIGN(${ALIGNMENT});}
  315. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_start = .);}}
  316. .preinit_array ${RELOCATING-0} : { *(.preinit_array) }
  317. ${RELOCATING+${CREATE_SHLIB-PROVIDE (__preinit_array_end = .);}}
  318. ${RELOCATING+${INIT_ARRAY}}
  319. ${RELOCATING+${FINI_ARRAY}}
  320. .data ${RELOCATING-0} :
  321. {
  322. ${RELOCATING+${DATA_START_SYMBOLS}}
  323. *(.data${RELOCATING+ .data.* .gnu.linkonce.d.*})
  324. ${CONSTRUCTING+SORT(CONSTRUCTORS)}
  325. }
  326. .data.init ${RELOCATING-0} :
  327. {
  328. *(.data.init)
  329. }
  330. .data1 ${RELOCATING-0} : { *(.data1) }
  331. .tdata ${RELOCATING-0} : { *(.tdata${RELOCATING+ .tdata.* .gnu.linkonce.td.*}) }
  332. .tbss ${RELOCATING-0} : { *(.tbss${RELOCATING+ .tbss.* .gnu.linkonce.tb.*})${RELOCATING+ *(.tcommon)} }
  333. .eh_frame ${RELOCATING-0} : { KEEP (*(.eh_frame)) }
  334. .gcc_except_table ${RELOCATING-0} : { *(.gcc_except_table) }
  335. ${WRITABLE_RODATA+${RODATA}}
  336. ${OTHER_READWRITE_SECTIONS}
  337. ${TEXT_DYNAMIC-${DYNAMIC}}
  338. ${RELOCATING+${CTOR}}
  339. ${RELOCATING+${DTOR}}
  340. .jcr ${RELOCATING-0} : { KEEP (*(.jcr)) }
  341. ${DATA_PLT+${PLT}}
  342. ${RELOCATING+${OTHER_GOT_SYMBOLS}}
  343. ${GOT}
  344. ${OTHER_GOT_SECTIONS}
  345. ${CREATE_SHLIB+${SDATA2}}
  346. ${CREATE_SHLIB+${SBSS2}}
  347. ${SDATA}
  348. ${OTHER_SDATA_SECTIONS}
  349. ${RELOCATING+_edata = .;}
  350. ${RELOCATING+PROVIDE (edata = .);}
  351. ${RELOCATING+__bss_start = .;}
  352. ${RELOCATING+${OTHER_BSS_SYMBOLS}}
  353. ${SBSS}
  354. ${BSS_PLT+${PLT}}
  355. .bss ${RELOCATING-0} :
  356. {
  357. ${RELOCATING+*(.dynbss)}
  358. *(.bss${RELOCATING+ .bss.* .gnu.linkonce.b.*})
  359. ${RELOCATING+*(COMMON)
  360. /* Align here to ensure that the .bss section occupies space up to
  361. _end. Align after .bss to ensure correct alignment even if the
  362. .bss section disappears because there are no input sections. */
  363. . = ALIGN(${ALIGNMENT});}
  364. }
  365. ${OTHER_BSS_SECTIONS}
  366. ${RELOCATING+. = ALIGN(${ALIGNMENT});}
  367. ${RELOCATING+_end = .;}
  368. ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
  369. ${RELOCATING+PROVIDE (end = .);}
  370. ${RELOCATING+${DATA_SEGMENT_END}}
  371. EOF
  372. test -n "${RELOCATING}" && cat <<EOF
  373. /* We want to be able to set a default stack / heap size in a dejagnu
  374. board description file, but override it for selected test cases.
  375. The options appear in the wrong order to do this with a single symbol -
  376. ldflags comes after flags injected with per-file stanzas, and thus
  377. the setting from ldflags prevails. */
  378. .heap :
  379. {
  380. __start_heap = . ;
  381. . = . + (DEFINED(__HEAP_SIZE) ? __HEAP_SIZE : (DEFINED(__DEFAULT_HEAP_SIZE) ? __DEFAULT_HEAP_SIZE : 20k)) ;
  382. __end_heap = . ;
  383. }
  384. . = ALIGN(0x8);
  385. .stack :
  386. {
  387. __stack = . ;
  388. . = . + (DEFINED(__STACK_SIZE) ? __STACK_SIZE : (DEFINED(__DEFAULT_STACK_SIZE) ? __DEFAULT_STACK_SIZE : 64k)) ;
  389. __stack_top = . ;
  390. }
  391. EOF
  392. cat <<EOF
  393. /* Stabs debugging sections. */
  394. .stab 0 : { *(.stab) }
  395. .stabstr 0 : { *(.stabstr) }
  396. .stab.excl 0 : { *(.stab.excl) }
  397. .stab.exclstr 0 : { *(.stab.exclstr) }
  398. .stab.index 0 : { *(.stab.index) }
  399. .stab.indexstr 0 : { *(.stab.indexstr) }
  400. .comment 0 : { *(.comment) }
  401. .note.gnu.build-id : { *(.note.gnu.build-id) }
  402. EOF
  403. . $srcdir/scripttempl/DWARF.sc
  404. cat <<EOF
  405. /* ARC Extension Sections */
  406. .arcextmap 0 : { *(.arcextmap.*) }
  407. ${OTHER_SECTIONS}
  408. ${RELOCATING+${OTHER_END_SYMBOLS}}
  409. ${RELOCATING+${STACKNOTE}}
  410. }
  411. EOF