Commit | Line | Data |
---|---|---|
252b5132 RH |
1 | # |
2 | # Unusual variables checked by this code: | |
3 | # NOP - two 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 text 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) | |
904ecb2d | 11 | # OTHER_BSS_SECTIONS - other than .bss .sbss ... |
252b5132 RH |
12 | # OTHER_SECTIONS - at the end |
13 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an | |
14 | # executable (e.g., _DYNAMIC_LINK) | |
15 | # TEXT_START_SYMBOLS - symbols that appear at the start of the | |
16 | # .text section. | |
17 | # DATA_START_SYMBOLS - symbols that appear at the start of the | |
18 | # .data section. | |
19 | # OTHER_GOT_SYMBOLS - symbols defined just before .got. | |
20 | # OTHER_GOT_SECTIONS - sections just after .got and .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 | # TEXT_DYNAMIC - .dynamic in text segment, not data segment. | |
25 | # EMBEDDED - whether this is for an embedded system. | |
26 | # SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set | |
27 | # start address of shared library. | |
28 | # INPUT_FILES - INPUT command of files to always include | |
a8e53fb0 | 29 | # WRITABLE_RODATA - if set, the .rodata section should be writable |
904ecb2d JL |
30 | # INIT_START, INIT_END - statements just before and just after |
31 | # combination of .init sections. | |
32 | # FINI_START, FINI_END - statements just before and just after | |
33 | # combination of .fini sections. | |
252b5132 RH |
34 | # |
35 | # When adding sections, do note that the names of some sections are used | |
36 | # when specifying the start address of the next. | |
37 | # | |
38 | ||
39 | test -z "$ENTRY" && ENTRY=_start | |
40 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
41 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
42 | if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi | |
43 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
44 | test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8" | |
45 | test "$LD_FLAG" = "N" && DATA_ADDR=. | |
46 | INTERP=".interp ${RELOCATING-0} : { *(.interp) }" | |
47 | PLT=".plt ${RELOCATING-0} : { *(.plt) }" | |
48 | DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" | |
a8e53fb0 | 49 | RODATA=".rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r*)} }" |
252b5132 RH |
50 | CTOR=".ctors ${CONSTRUCTING-0} : |
51 | { | |
52 | ${CONSTRUCTING+${CTOR_START}} | |
53 | /* gcc uses crtbegin.o to find the start of | |
54 | the constructors, so we make sure it is | |
55 | first. Because this is a wildcard, it | |
56 | doesn't matter if the user does not | |
57 | actually link against crtbegin.o; the | |
58 | linker won't look for a file to match a | |
59 | wildcard. The wildcard also means that it | |
60 | doesn't matter which directory crtbegin.o | |
61 | is in. */ | |
62 | ||
63 | KEEP (*crtbegin.o(.ctors)) | |
64 | ||
65 | /* We don't want to include the .ctor section from | |
66 | from the crtend.o file until after the sorted ctors. | |
67 | The .ctor section from the crtend file contains the | |
68 | end of ctors marker and it must be last */ | |
69 | ||
70 | KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) | |
71 | KEEP (*(SORT(.ctors.*))) | |
72 | KEEP (*(.ctors)) | |
73 | ${CONSTRUCTING+${CTOR_END}} | |
74 | }" | |
75 | ||
76 | DTOR=" .dtors ${CONSTRUCTING-0} : | |
77 | { | |
78 | ${CONSTRUCTING+${DTOR_START}} | |
79 | KEEP (*crtbegin.o(.dtors)) | |
80 | KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) | |
81 | KEEP (*(SORT(.dtors.*))) | |
82 | KEEP (*(.dtors)) | |
83 | ${CONSTRUCTING+${DTOR_END}} | |
84 | }" | |
85 | ||
86 | # if this is for an embedded system, don't add SIZEOF_HEADERS. | |
87 | if [ -z "$EMBEDDED" ]; then | |
88 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS" | |
89 | else | |
90 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}" | |
91 | fi | |
92 | ||
93 | cat <<EOF | |
94 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", | |
95 | "${LITTLE_OUTPUT_FORMAT}") | |
96 | OUTPUT_ARCH(${OUTPUT_ARCH}) | |
97 | ENTRY(${ENTRY}) | |
98 | ||
99 | ${RELOCATING+${LIB_SEARCH_DIRS}} | |
100 | ${RELOCATING+/* Do we need any of these for elf? | |
101 | __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} | |
102 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} | |
103 | ${RELOCATING+${INPUT_FILES}} | |
104 | ${RELOCATING- /* For some reason, the Solaris linker makes bad executables | |
105 | if gld -r is used and the intermediate file has sections starting | |
106 | at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld | |
107 | bug. But for now assigning the zero vmas works. */} | |
108 | ||
109 | SECTIONS | |
110 | { | |
111 | /* Read-only sections, merged into text segment: */ | |
112 | ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}} | |
113 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} | |
114 | ${CREATE_SHLIB-${INTERP}} | |
115 | ${INITIAL_READONLY_SECTIONS} | |
116 | ${TEXT_DYNAMIC+${DYNAMIC}} | |
117 | .hash ${RELOCATING-0} : { *(.hash) } | |
118 | .dynsym ${RELOCATING-0} : { *(.dynsym) } | |
119 | .dynstr ${RELOCATING-0} : { *(.dynstr) } | |
120 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } | |
121 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } | |
122 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } | |
9e4141bc RH |
123 | |
124 | .rel.init ${RELOCATING-0} : { *(.rel.init) } | |
125 | .rela.init ${RELOCATING-0} : { *(.rela.init) } | |
252b5132 RH |
126 | .rel.text ${RELOCATING-0} : |
127 | { | |
128 | *(.rel.text) | |
129 | ${RELOCATING+*(.rel.text.*)} | |
130 | ${RELOCATING+*(.rel.gnu.linkonce.t*)} | |
131 | } | |
132 | .rela.text ${RELOCATING-0} : | |
133 | { | |
134 | *(.rela.text) | |
135 | ${RELOCATING+*(.rela.text.*)} | |
136 | ${RELOCATING+*(.rela.gnu.linkonce.t*)} | |
137 | } | |
9e4141bc RH |
138 | .rel.fini ${RELOCATING-0} : { *(.rel.fini) } |
139 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } | |
252b5132 RH |
140 | .rel.rodata ${RELOCATING-0} : |
141 | { | |
142 | *(.rel.rodata) | |
143 | ${RELOCATING+*(.rel.rodata.*)} | |
144 | ${RELOCATING+*(.rel.gnu.linkonce.r*)} | |
145 | } | |
146 | .rela.rodata ${RELOCATING-0} : | |
147 | { | |
148 | *(.rela.rodata) | |
149 | ${RELOCATING+*(.rela.rodata.*)} | |
150 | ${RELOCATING+*(.rela.gnu.linkonce.r*)} | |
151 | } | |
9e4141bc RH |
152 | ${OTHER_READONLY_RELOC_SECTIONS} |
153 | .rel.data ${RELOCATING-0} : | |
154 | { | |
155 | *(.rel.data) | |
156 | ${RELOCATING+*(.rel.data.*)} | |
157 | ${RELOCATING+*(.rel.gnu.linkonce.d*)} | |
158 | } | |
159 | .rela.data ${RELOCATING-0} : | |
160 | { | |
161 | *(.rela.data) | |
162 | ${RELOCATING+*(.rela.data.*)} | |
163 | ${RELOCATING+*(.rela.gnu.linkonce.d*)} | |
164 | } | |
252b5132 RH |
165 | .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } |
166 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } | |
167 | .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } | |
168 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } | |
9e4141bc RH |
169 | .rel.got ${RELOCATING-0} : { *(.rel.got) } |
170 | .rela.got ${RELOCATING-0} : { *(.rela.got) } | |
171 | ${OTHER_GOT_RELOC_SECTIONS} | |
cfd0966c GK |
172 | .rel.sdata ${RELOCATING-0} : |
173 | { | |
174 | *(.rel.sdata) | |
175 | ${RELOCATING+*(.rel.sdata.*)} | |
176 | ${RELOCATING+*(.rel.gnu.linkonce.s*)} | |
177 | } | |
178 | .rela.sdata ${RELOCATING-0} : | |
179 | { | |
180 | *(.rela.sdata) | |
181 | ${RELOCATING+*(.rela.sdata.*)} | |
182 | ${RELOCATING+*(.rela.gnu.linkonce.s*)} | |
183 | } | |
184 | .rel.sbss ${RELOCATING-0} : { *(.rel.sbss) } | |
185 | .rela.sbss ${RELOCATING-0} : { *(.rela.sbss) } | |
252b5132 RH |
186 | .rel.bss ${RELOCATING-0} : { *(.rel.bss) } |
187 | .rela.bss ${RELOCATING-0} : { *(.rela.bss) } | |
188 | .rel.plt ${RELOCATING-0} : { *(.rel.plt) } | |
189 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } | |
9e4141bc | 190 | |
904ecb2d JL |
191 | .init ${RELOCATING-0} : |
192 | { | |
193 | ${INIT_START} | |
194 | KEEP (*(.init)) | |
195 | ${INIT_END} | |
196 | } =${NOP-0} | |
197 | ||
252b5132 RH |
198 | ${DATA_PLT-${PLT}} |
199 | .text ${RELOCATING-0} : | |
200 | { | |
201 | ${RELOCATING+${TEXT_START_SYMBOLS}} | |
202 | *(.text) | |
203 | ${RELOCATING+*(.text.*)} | |
204 | *(.stub) | |
205 | /* .gnu.warning sections are handled specially by elf32.em. */ | |
206 | *(.gnu.warning) | |
207 | ${RELOCATING+*(.gnu.linkonce.t*)} | |
208 | ${RELOCATING+${OTHER_TEXT_SECTIONS}} | |
209 | } =${NOP-0} | |
210 | ${RELOCATING+_etext = .;} | |
211 | ${RELOCATING+PROVIDE (etext = .);} | |
904ecb2d JL |
212 | .fini ${RELOCATING-0} : |
213 | { | |
214 | ${FINI_START} | |
215 | KEEP (*(.fini)) | |
216 | ${FINI_END} | |
217 | } =${NOP-0} | |
a8e53fb0 | 218 | ${WRITABLE_RODATA-${RODATA}} |
252b5132 RH |
219 | .rodata1 ${RELOCATING-0} : { *(.rodata1) } |
220 | ${RELOCATING+${OTHER_READONLY_SECTIONS}} | |
221 | ||
222 | /* Adjust the address for the data segment. We want to adjust up to | |
223 | the same address within the page on the next page up. */ | |
224 | ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} | |
225 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} | |
226 | ||
227 | .data ${RELOCATING-0} : | |
228 | { | |
229 | ${RELOCATING+${DATA_START_SYMBOLS}} | |
230 | *(.data) | |
231 | ${RELOCATING+*(.data.*)} | |
232 | ${RELOCATING+*(.gnu.linkonce.d*)} | |
233 | ${CONSTRUCTING+SORT(CONSTRUCTORS)} | |
234 | } | |
235 | .data1 ${RELOCATING-0} : { *(.data1) } | |
236 | .eh_frame : { *(.eh_frame) } | |
237 | .gcc_except_table : { *(.gcc_except_table) } | |
a8e53fb0 | 238 | ${WRITABLE_RODATA+${RODATA}} |
252b5132 RH |
239 | ${RELOCATING+${OTHER_READWRITE_SECTIONS}} |
240 | ${RELOCATING+${CTOR}} | |
241 | ${RELOCATING+${DTOR}} | |
242 | ${DATA_PLT+${PLT}} | |
243 | ${RELOCATING+${OTHER_GOT_SYMBOLS}} | |
244 | .got ${RELOCATING-0} : { *(.got.plt) *(.got) } | |
245 | ${TEXT_DYNAMIC-${DYNAMIC}} | |
246 | /* We want the small data sections together, so single-instruction offsets | |
247 | can access them all, and initialized data all before uninitialized, so | |
248 | we can shorten the on-disk segment size. */ | |
cfd0966c GK |
249 | .sdata ${RELOCATING-0} : |
250 | { | |
251 | ${RELOCATING+${SDATA_START_SYMBOLS}} | |
252 | *(.sdata) | |
253 | ${RELOCATING+*(.sdata.*)} | |
254 | ${RELOCATING+*(.gnu.linkonce.s.*)} | |
255 | } | |
252b5132 | 256 | ${RELOCATING+${OTHER_GOT_SECTIONS}} |
9e4141bc | 257 | ${RELOCATING+_edata = .;} |
252b5132 RH |
258 | ${RELOCATING+PROVIDE (edata = .);} |
259 | ${RELOCATING+__bss_start = .;} | |
260 | ${RELOCATING+${OTHER_BSS_SYMBOLS}} | |
3c9cf3a3 NC |
261 | .sbss ${RELOCATING-0} : |
262 | { | |
cfd0966c GK |
263 | *(.dynsbss) |
264 | *(.sbss) | |
265 | ${RELOCATING+*(.sbss.*)} | |
266 | *(.scommon) | |
3c9cf3a3 | 267 | } |
252b5132 RH |
268 | .bss ${RELOCATING-0} : |
269 | { | |
270 | *(.dynbss) | |
271 | *(.bss) | |
3c9cf3a3 | 272 | ${RELOCATING+*(.bss.*)} |
252b5132 RH |
273 | *(COMMON) |
274 | /* Align here to ensure that the .bss section occupies space up to | |
275 | _end. Align after .bss to ensure correct alignment even if the | |
276 | .bss section disappears because there are no input sections. */ | |
277 | ${RELOCATING+. = ALIGN(${ALIGNMENT});} | |
278 | } | |
904ecb2d | 279 | ${RELOCATING+${OTHER_BSS_SECTIONS}} |
252b5132 | 280 | ${RELOCATING+. = ALIGN(${ALIGNMENT});} |
9e4141bc | 281 | ${RELOCATING+_end = .;} |
252b5132 RH |
282 | ${RELOCATING+${OTHER_BSS_END_SYMBOLS}} |
283 | ${RELOCATING+PROVIDE (end = .);} | |
284 | ||
285 | /* Stabs debugging sections. */ | |
286 | .stab 0 : { *(.stab) } | |
287 | .stabstr 0 : { *(.stabstr) } | |
288 | .stab.excl 0 : { *(.stab.excl) } | |
289 | .stab.exclstr 0 : { *(.stab.exclstr) } | |
290 | .stab.index 0 : { *(.stab.index) } | |
291 | .stab.indexstr 0 : { *(.stab.indexstr) } | |
292 | ||
293 | .comment 0 : { *(.comment) } | |
294 | ||
295 | /* DWARF debug sections. | |
296 | Symbols in the DWARF debugging sections are relative to the beginning | |
297 | of the section so we begin them at 0. */ | |
298 | ||
299 | /* DWARF 1 */ | |
300 | .debug 0 : { *(.debug) } | |
301 | .line 0 : { *(.line) } | |
302 | ||
303 | /* GNU DWARF 1 extensions */ | |
304 | .debug_srcinfo 0 : { *(.debug_srcinfo) } | |
305 | .debug_sfnames 0 : { *(.debug_sfnames) } | |
306 | ||
307 | /* DWARF 1.1 and DWARF 2 */ | |
308 | .debug_aranges 0 : { *(.debug_aranges) } | |
309 | .debug_pubnames 0 : { *(.debug_pubnames) } | |
310 | ||
311 | /* DWARF 2 */ | |
312 | .debug_info 0 : { *(.debug_info) } | |
313 | .debug_abbrev 0 : { *(.debug_abbrev) } | |
314 | .debug_line 0 : { *(.debug_line) } | |
315 | .debug_frame 0 : { *(.debug_frame) } | |
316 | .debug_str 0 : { *(.debug_str) } | |
317 | .debug_loc 0 : { *(.debug_loc) } | |
318 | .debug_macinfo 0 : { *(.debug_macinfo) } | |
319 | ||
320 | /* SGI/MIPS DWARF 2 extensions */ | |
321 | .debug_weaknames 0 : { *(.debug_weaknames) } | |
322 | .debug_funcnames 0 : { *(.debug_funcnames) } | |
323 | .debug_typenames 0 : { *(.debug_typenames) } | |
324 | .debug_varnames 0 : { *(.debug_varnames) } | |
325 | ||
326 | ${RELOCATING+${OTHER_RELOCATING_SECTIONS}} | |
327 | ||
328 | /* These must appear regardless of ${RELOCATING}. */ | |
329 | ${OTHER_SECTIONS} | |
330 | } | |
331 | EOF |