Commit | Line | Data |
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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 | # OTHER_READONLY_SECTIONS - other than .text .init .rodata ... | |
6 | # (e.g., .PARISC.milli) | |
7 | # OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ... | |
8 | # (e.g., .PARISC.global) | |
9 | # OTHER_SECTIONS - at the end | |
10 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an | |
11 | # executable (e.g., _DYNAMIC_LINK) | |
12 | # TEXT_START_SYMBOLS - symbols that appear at the start of the | |
13 | # .text section. | |
14 | # DATA_START_SYMBOLS - symbols that appear at the start of the | |
15 | # .data section. | |
16 | # OTHER_BSS_SYMBOLS - symbols that appear at the start of the | |
17 | # .bss section besides __bss_start. | |
18 | # | |
19 | # When adding sections, do note that the names of some sections are used | |
20 | # when specifying the start address of the next. | |
21 | # | |
22 | test -z "$ENTRY" && ENTRY=_start | |
23 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
24 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
25 | test "$LD_FLAG" = "N" && DATA_ADDR=. | |
26 | SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) }" | |
27 | SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) }" | |
28 | INTERP=".interp ${RELOCATING-0} : { *(.interp) }" | |
29 | PLT=".plt ${RELOCATING-0} : { *(.plt) }" | |
30 | CTOR=".ctors ${CONSTRUCTING-0} : | |
31 | { | |
32 | ${CONSTRUCTING+${CTOR_START}} | |
33 | /* gcc uses crtbegin.o to find the start of | |
34 | the constructors, so we make sure it is | |
35 | first. Because this is a wildcard, it | |
36 | doesn't matter if the user does not | |
37 | actually link against crtbegin.o; the | |
38 | linker won't look for a file to match a | |
39 | wildcard. The wildcard also means that it | |
40 | doesn't matter which directory crtbegin.o | |
41 | is in. */ | |
42 | ||
43 | KEEP (*crtbegin.o(.ctors)) | |
44 | ||
45 | /* We don't want to include the .ctor section from | |
46 | from the crtend.o file until after the sorted ctors. | |
47 | The .ctor section from the crtend file contains the | |
48 | end of ctors marker and it must be last */ | |
49 | ||
50 | KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) | |
51 | KEEP (*(SORT(.ctors.*))) | |
52 | KEEP (*(.ctors)) | |
53 | ${CONSTRUCTING+${CTOR_END}} | |
54 | }" | |
55 | ||
56 | DTOR=" .dtors ${CONSTRUCTING-0} : | |
57 | { | |
58 | ${CONSTRUCTING+${DTOR_START}} | |
59 | KEEP (*crtbegin.o(.dtors)) | |
60 | KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) | |
61 | KEEP (*(SORT(.dtors.*))) | |
62 | KEEP (*(.dtors)) | |
63 | ${CONSTRUCTING+${DTOR_END}} | |
64 | }" | |
65 | ||
66 | cat <<EOF | |
67 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", | |
68 | "${LITTLE_OUTPUT_FORMAT}") | |
69 | OUTPUT_ARCH(${ARCH}) | |
70 | ENTRY(${ENTRY}) | |
71 | ||
72 | ${RELOCATING+${LIB_SEARCH_DIRS}} | |
73 | ${RELOCATING+/* Do we need any of these for elf? | |
74 | __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} | |
75 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} | |
76 | ${RELOCATING- /* For some reason, the Solaris linker makes bad executables | |
77 | if gld -r is used and the intermediate file has sections starting | |
78 | at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld | |
79 | bug. But for now assigning the zero vmas works. */} | |
80 | ||
81 | ${RELOCATING+PROVIDE (__stack = 0);} | |
82 | ${RELOCATING+PROVIDE (___stack = 0);} | |
83 | SECTIONS | |
84 | { | |
85 | /* Read-only sections, merged into text segment: */ | |
86 | ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_START_ADDR} + SIZEOF_HEADERS;}} | |
87 | ${CREATE_SHLIB+${RELOCATING+. = SIZEOF_HEADERS;}} | |
88 | ${CREATE_SHLIB-${INTERP}} | |
89 | .hash ${RELOCATING-0} : { *(.hash) } | |
90 | .dynsym ${RELOCATING-0} : { *(.dynsym) } | |
91 | .dynstr ${RELOCATING-0} : { *(.dynstr) } | |
92 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } | |
93 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } | |
94 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } | |
95 | .rela.text ${RELOCATING-0} : | |
96 | { | |
97 | *(.rela.text) | |
98 | ${RELOCATING+*(.rela.text.*)} | |
99 | ${RELOCATING+*(.rela.gnu.linkonce.t*)} | |
100 | } | |
101 | .rela.data ${RELOCATING-0} : | |
102 | { | |
103 | *(.rela.data) | |
104 | ${RELOCATING+*(.rela.data.*)} | |
105 | ${RELOCATING+*(.rela.gnu.linkonce.d*)} | |
106 | } | |
107 | .rela.rodata ${RELOCATING-0} : | |
108 | { | |
109 | *(.rela.rodata) | |
110 | ${RELOCATING+*(.rela.rodata.*)} | |
111 | ${RELOCATING+*(.rela.gnu.linkonce.r*)} | |
112 | } | |
113 | .rela.got ${RELOCATING-0} : { *(.rela.got) } | |
114 | .rela.got1 ${RELOCATING-0} : { *(.rela.got1) } | |
115 | .rela.got2 ${RELOCATING-0} : { *(.rela.got2) } | |
116 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } | |
117 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } | |
118 | .rela.init ${RELOCATING-0} : { *(.rela.init) } | |
119 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } | |
120 | .rela.bss ${RELOCATING-0} : { *(.rela.bss) } | |
121 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } | |
122 | .rela.sdata ${RELOCATING-0} : { *(.rela.sdata) } | |
123 | .rela.sbss ${RELOCATING-0} : { *(.rela.sbss) } | |
124 | .rela.sdata2 ${RELOCATING-0} : { *(.rela.sdata2) } | |
125 | .rela.sbss2 ${RELOCATING-0} : { *(.rela.sbss2) } | |
126 | .text ${RELOCATING-0} : | |
127 | { | |
128 | ${RELOCATING+${TEXT_START_SYMBOLS}} | |
129 | *(.text) | |
130 | ${RELOCATING+*(.text.*)} | |
131 | /* .gnu.warning sections are handled specially by elf32.em. */ | |
132 | *(.gnu.warning) | |
133 | ${RELOCATING+*(.gnu.linkonce.t*)} | |
134 | } =${NOP-0} | |
135 | .init ${RELOCATING-0} : { KEEP (*(.init)) } =${NOP-0} | |
136 | .fini ${RELOCATING-0} : { KEEP (*(.fini)) } =${NOP-0} | |
137 | .rodata ${RELOCATING-0} : | |
138 | { | |
139 | *(.rodata) | |
140 | ${RELOCATING+*(.rodata.*)} | |
141 | ${RELOCATING+*(.gnu.linkonce.r*)} | |
142 | } | |
143 | .rodata1 ${RELOCATING-0} : { *(.rodata1) } | |
144 | ${RELOCATING+_etext = .;} | |
145 | ${RELOCATING+PROVIDE (etext = .);} | |
146 | ${RELOCATING+PROVIDE (__etext = .);} | |
147 | ${CREATE_SHLIB-${SDATA2}} | |
148 | ${CREATE_SHLIB-${SBSS2}} | |
149 | ${RELOCATING+${OTHER_READONLY_SECTIONS}} | |
150 | ||
151 | /* Adjust the address for the data segment. We want to adjust up to | |
152 | the same address within the page on the next page up. It would | |
153 | be more correct to do this: | |
154 | ${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (ALIGN(8) & (${MAXPAGESIZE} - 1))};} | |
155 | The current expression does not correctly handle the case of a | |
156 | text segment ending precisely at the end of a page; it causes the | |
157 | data segment to skip a page. The above expression does not have | |
158 | this problem, but it will currently (2/95) cause BFD to allocate | |
159 | a single segment, combining both text and data, for this case. | |
160 | This will prevent the text segment from being shared among | |
161 | multiple executions of the program; I think that is more | |
162 | important than losing a page of the virtual address space (note | |
163 | that no actual memory is lost; the page which is skipped can not | |
164 | be referenced). */ | |
165 | ${RELOCATING+. = ${DATA_ADDR- ALIGN(8) + ${MAXPAGESIZE}};} | |
166 | ||
167 | .data ${RELOCATING-0} : | |
168 | { | |
169 | ${RELOCATING+${DATA_START_SYMBOLS}} | |
170 | *(.data) | |
171 | ${RELOCATING+*(.data.*)} | |
172 | ${RELOCATING+*(.gnu.linkonce.d*)} | |
173 | ${CONSTRUCTING+CONSTRUCTORS} | |
174 | } | |
175 | .data1 ${RELOCATING-0} : { *(.data1) } | |
176 | ${RELOCATING+${OTHER_READWRITE_SECTIONS}} | |
177 | ||
178 | .got1 ${RELOCATING-0} : { *(.got1) } | |
179 | .dynamic ${RELOCATING-0} : { *(.dynamic) } | |
180 | ||
181 | /* Put .ctors and .dtors next to the .got2 section, so that the pointers | |
182 | get relocated with -mrelocatable. Also put in the .fixup pointers. | |
183 | The current compiler no longer needs this, but keep it around for 2.7.2 */ | |
184 | ||
185 | ${RELOCATING+PROVIDE (_GOT2_START_ = .);} | |
186 | ${RELOCATING+PROVIDE (__GOT2_START_ = .);} | |
187 | .got2 ${RELOCATING-0} : { *(.got2) } | |
188 | ||
189 | ${RELOCATING+PROVIDE (__CTOR_LIST__ = .);} | |
190 | ${RELOCATING+PROVIDE (___CTOR_LIST__ = .);} | |
191 | ${RELOCATING+${CTOR}} | |
192 | ${RELOCATING+PROVIDE (__CTOR_END__ = .);} | |
193 | ${RELOCATING+PROVIDE (___CTOR_END__ = .);} | |
194 | ||
195 | ${RELOCATING+PROVIDE (__DTOR_LIST__ = .);} | |
196 | ${RELOCATING+PROVIDE (___DTOR_LIST__ = .);} | |
197 | ${RELOCATING+${DTOR}} | |
198 | ${RELOCATING+PROVIDE (__DTOR_END__ = .);} | |
199 | ${RELOCATING+PROVIDE (___DTOR_END__ = .);} | |
200 | ||
201 | ${RELOCATING+PROVIDE (_FIXUP_START_ = .);} | |
202 | ${RELOCATING+PROVIDE (__FIXUP_START_ = .);} | |
203 | .fixup ${RELOCATING-0} : { *(.fixup) } | |
204 | ${RELOCATING+PROVIDE (_FIXUP_END_ = .);} | |
205 | ${RELOCATING+PROVIDE (__FIXUP_END_ = .);} | |
206 | ${RELOCATING+PROVIDE (_GOT2_END_ = .);} | |
207 | ${RELOCATING+PROVIDE (__GOT2_END_ = .);} | |
208 | ||
209 | ${RELOCATING+PROVIDE (_GOT_START_ = .);} | |
210 | ${RELOCATING+PROVIDE (__GOT_START_ = .);} | |
211 | .got ${RELOCATING-0} : { *(.got) } | |
212 | .got.plt ${RELOCATING-0} : { *(.got.plt) } | |
213 | ${CREATE_SHLIB+${SDATA2}} | |
214 | ${CREATE_SHLIB+${SBSS2}} | |
215 | ${RELOCATING+PROVIDE (_GOT_END_ = .);} | |
216 | ${RELOCATING+PROVIDE (__GOT_END_ = .);} | |
217 | ||
218 | /* We want the small data sections together, so single-instruction offsets | |
219 | can access them all, and initialized data all before uninitialized, so | |
220 | we can shorten the on-disk segment size. */ | |
221 | .sdata ${RELOCATING-0} : { *(.sdata) } | |
222 | ${RELOCATING+_edata = .;} | |
223 | ${RELOCATING+PROVIDE (edata = .);} | |
224 | ${RELOCATING+PROVIDE (__edata = .);} | |
225 | .sbss ${RELOCATING-0} : | |
226 | { | |
227 | ${RELOCATING+PROVIDE (__sbss_start = .);} | |
228 | ${RELOCATING+PROVIDE (___sbss_start = .);} | |
229 | *(.sbss) | |
230 | *(.scommon) | |
231 | *(.dynsbss) | |
232 | ${RELOCATING+PROVIDE (__sbss_end = .);} | |
233 | ${RELOCATING+PROVIDE (___sbss_end = .);} | |
234 | } | |
235 | ${PLT} | |
236 | .bss ${RELOCATING-0} : | |
237 | { | |
238 | ${RELOCATING+${OTHER_BSS_SYMBOLS}} | |
239 | ${RELOCATING+PROVIDE (__bss_start = .);} | |
240 | ${RELOCATING+PROVIDE (___bss_start = .);} | |
241 | *(.dynbss) | |
242 | *(.bss) | |
243 | *(COMMON) | |
244 | } | |
245 | ${RELOCATING+_end = . ;} | |
246 | ${RELOCATING+PROVIDE (end = .);} | |
247 | ${RELOCATING+PROVIDE (__end = .);} | |
248 | ||
249 | /* These are needed for ELF backends which have not yet been | |
250 | converted to the new style linker. */ | |
251 | .stab 0 : { *(.stab) } | |
252 | .stabstr 0 : { *(.stabstr) } | |
253 | ||
254 | /* DWARF debug sections. | |
255 | Symbols in the DWARF debugging sections are relative to the beginning | |
256 | of the section so we begin them at 0. */ | |
257 | ||
258 | /* DWARF 1 */ | |
259 | .debug 0 : { *(.debug) } | |
260 | .line 0 : { *(.line) } | |
261 | ||
262 | /* GNU DWARF 1 extensions */ | |
263 | .debug_srcinfo 0 : { *(.debug_srcinfo) } | |
264 | .debug_sfnames 0 : { *(.debug_sfnames) } | |
265 | ||
266 | /* DWARF 1.1 and DWARF 2 */ | |
267 | .debug_aranges 0 : { *(.debug_aranges) } | |
268 | .debug_pubnames 0 : { *(.debug_pubnames) } | |
269 | ||
270 | /* DWARF 2 */ | |
271 | .debug_info 0 : { *(.debug_info) } | |
272 | .debug_abbrev 0 : { *(.debug_abbrev) } | |
273 | .debug_line 0 : { *(.debug_line) } | |
274 | .debug_frame 0 : { *(.debug_frame) } | |
275 | .debug_str 0 : { *(.debug_str) } | |
276 | .debug_loc 0 : { *(.debug_loc) } | |
277 | .debug_macinfo 0 : { *(.debug_macinfo) } | |
278 | ||
279 | /* SGI/MIPS DWARF 2 extensions */ | |
280 | .debug_weaknames 0 : { *(.debug_weaknames) } | |
281 | .debug_funcnames 0 : { *(.debug_funcnames) } | |
282 | .debug_typenames 0 : { *(.debug_typenames) } | |
283 | .debug_varnames 0 : { *(.debug_varnames) } | |
284 | ||
285 | /* These must appear regardless of ${RELOCATING}. */ | |
286 | ${OTHER_SECTIONS} | |
287 | } | |
288 | EOF |