Commit | Line | Data |
---|---|---|
020c70e9 CM |
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) | |
11 | # OTHER_SECTIONS - at the end | |
12 | # EXECUTABLE_SYMBOLS - symbols that must be defined for an | |
13 | # executable (e.g., _DYNAMIC_LINK) | |
14 | # TEXT_START_SYMBOLS - symbols that appear at the start of the | |
15 | # .text section. | |
16 | # DATA_START_SYMBOLS - symbols that appear at the start of the | |
17 | # .data section. | |
18 | # OTHER_GOT_SYMBOLS - symbols defined just before .got. | |
19 | # OTHER_GOT_SECTIONS - sections just after .got and .sdata. | |
20 | # OTHER_BSS_SYMBOLS - symbols that appear at the start of the | |
21 | # .bss section besides __bss_start. | |
22 | # DATA_PLT - .plt should be in data segment, not text segment. | |
23 | # TEXT_DYNAMIC - .dynamic in text segment, not data segment. | |
24 | # EMBEDDED - whether this is for an embedded system. | |
25 | # SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set | |
26 | # start address of shared library. | |
27 | # INPUT_FILES - INPUT command of files to always include | |
28 | # | |
29 | # When adding sections, do note that the names of some sections are used | |
30 | # when specifying the start address of the next. | |
31 | # | |
32 | ||
33 | test -z "$ENTRY" && ENTRY=_start | |
34 | test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
35 | test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT} | |
36 | if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi | |
37 | test -z "${ELFSIZE}" && ELFSIZE=32 | |
38 | test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8" | |
39 | test "$LD_FLAG" = "N" && DATA_ADDR=. | |
40 | INTERP=".interp ${RELOCATING-0} : { *(.interp) }" | |
41 | PLT=".plt ${RELOCATING-0} : { *(.plt) }" | |
42 | DYNAMIC=".dynamic ${RELOCATING-0} : { *(.dynamic) }" | |
43 | ||
44 | # if this is for an embedded system, don't add SIZEOF_HEADERS. | |
45 | if [ -z "$EMBEDDED" ]; then | |
46 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS" | |
47 | else | |
48 | test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}" | |
49 | fi | |
50 | ||
51 | cat <<EOF | |
52 | OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}", | |
53 | "${LITTLE_OUTPUT_FORMAT}") | |
54 | OUTPUT_ARCH(${OUTPUT_ARCH}) | |
55 | ENTRY(${ENTRY}) | |
56 | ||
57 | ${RELOCATING+${LIB_SEARCH_DIRS}} | |
58 | ${RELOCATING+/* Do we need any of these for elf? | |
59 | __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}} */} | |
60 | ${RELOCATING+${EXECUTABLE_SYMBOLS}} | |
61 | ${RELOCATING+${INPUT_FILES}} | |
62 | ${RELOCATING- /* For some reason, the Solaris linker makes bad executables | |
63 | if gld -r is used and the intermediate file has sections starting | |
64 | at non-zero addresses. Could be a Solaris ld bug, could be a GNU ld | |
65 | bug. But for now assigning the zero vmas works. */} | |
66 | ||
67 | SECTIONS | |
68 | { | |
69 | /* Read-only sections, merged into text segment: */ | |
70 | ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}} | |
71 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}} | |
72 | ${CREATE_SHLIB-${INTERP}} | |
73 | ${INITIAL_READONLY_SECTIONS} | |
74 | ${TEXT_DYNAMIC+${DYNAMIC}} | |
75 | .hash ${RELOCATING-0} : { *(.hash) } | |
76 | .dynsym ${RELOCATING-0} : { *(.dynsym) } | |
77 | .dynstr ${RELOCATING-0} : { *(.dynstr) } | |
78 | .gnu.version ${RELOCATING-0} : { *(.gnu.version) } | |
79 | .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d) } | |
80 | .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r) } | |
81 | .rel.text ${RELOCATING-0} : | |
82 | { | |
83 | *(.rel.text) | |
84 | ${RELOCATING+*(.rel.text.*)} | |
85 | ${RELOCATING+*(.rel.gnu.linkonce.t*)} | |
86 | } | |
87 | .rela.text ${RELOCATING-0} : | |
88 | { | |
89 | *(.rela.text) | |
90 | ${RELOCATING+*(.rela.text.*)} | |
91 | ${RELOCATING+*(.rela.gnu.linkonce.t*)} | |
92 | } | |
93 | .rel.data ${RELOCATING-0} : | |
94 | { | |
95 | *(.rel.data) | |
96 | ${RELOCATING+*(.rel.data.*)} | |
97 | ${RELOCATING+*(.rel.gnu.linkonce.d*)} | |
98 | } | |
99 | .rela.data ${RELOCATING-0} : | |
100 | { | |
101 | *(.rela.data) | |
102 | ${RELOCATING+*(.rela.data.*)} | |
103 | ${RELOCATING+*(.rela.gnu.linkonce.d*)} | |
104 | } | |
105 | .rel.rodata ${RELOCATING-0} : | |
106 | { | |
107 | *(.rel.rodata) | |
108 | ${RELOCATING+*(.rel.rodata.*)} | |
109 | ${RELOCATING+*(.rel.gnu.linkonce.r*)} | |
110 | } | |
111 | .rela.rodata ${RELOCATING-0} : | |
112 | { | |
113 | *(.rela.rodata) | |
114 | ${RELOCATING+*(.rela.rodata.*)} | |
115 | ${RELOCATING+*(.rela.gnu.linkonce.r*)} | |
116 | } | |
117 | .rel.got ${RELOCATING-0} : { *(.rel.got) } | |
118 | .rela.got ${RELOCATING-0} : { *(.rela.got) } | |
119 | .rel.ctors ${RELOCATING-0} : { *(.rel.ctors) } | |
120 | .rela.ctors ${RELOCATING-0} : { *(.rela.ctors) } | |
121 | .rel.dtors ${RELOCATING-0} : { *(.rel.dtors) } | |
122 | .rela.dtors ${RELOCATING-0} : { *(.rela.dtors) } | |
123 | .rel.init ${RELOCATING-0} : { *(.rel.init) } | |
124 | .rela.init ${RELOCATING-0} : { *(.rela.init) } | |
125 | .rel.fini ${RELOCATING-0} : { *(.rel.fini) } | |
126 | .rela.fini ${RELOCATING-0} : { *(.rela.fini) } | |
127 | .rel.bss ${RELOCATING-0} : { *(.rel.bss) } | |
128 | .rela.bss ${RELOCATING-0} : { *(.rela.bss) } | |
129 | .rel.plt ${RELOCATING-0} : { *(.rel.plt) } | |
130 | .rela.plt ${RELOCATING-0} : { *(.rela.plt) } | |
131 | .init ${RELOCATING-0} : { KEEP (*(.init)) } =${NOP-0} | |
132 | ${DATA_PLT-${PLT}} | |
b3bd5b15 | 133 | .text ${RELOCATING-0} : |
020c70e9 CM |
134 | { |
135 | ${RELOCATING+${TEXT_START_SYMBOLS}} | |
136 | *(.text) | |
527c54a6 CM |
137 | *(.glue_7t) |
138 | *(.glue_7) | |
020c70e9 CM |
139 | ${RELOCATING+*(.text.*)} |
140 | *(.stub) | |
141 | /* .gnu.warning sections are handled specially by elf32.em. */ | |
142 | *(.gnu.warning) | |
143 | ${RELOCATING+*(.gnu.linkonce.t*)} | |
144 | ${RELOCATING+${OTHER_TEXT_SECTIONS}} | |
145 | } =${NOP-0} | |
146 | ${RELOCATING+_etext = .;} | |
147 | ${RELOCATING+PROVIDE (etext = .);} | |
148 | .fini ${RELOCATING-0} : { KEEP (*(.fini)) } =${NOP-0} | |
149 | .rodata ${RELOCATING-0} : | |
150 | { | |
151 | *(.rodata) | |
152 | ${RELOCATING+*(.rodata.*)} | |
153 | ${RELOCATING+*(.gnu.linkonce.r*)} | |
154 | } | |
155 | .rodata1 ${RELOCATING-0} : { *(.rodata1) } | |
156 | ${RELOCATING+${OTHER_READONLY_SECTIONS}} | |
157 | ||
158 | /* Adjust the address for the data segment. We want to adjust up to | |
159 | the same address within the page on the next page up. */ | |
160 | ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} | |
161 | ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}} | |
162 | ||
163 | .data ${RELOCATING-0} : | |
164 | { | |
165 | ${RELOCATING+${DATA_START_SYMBOLS}} | |
166 | *(.data) | |
167 | ${RELOCATING+*(.data.*)} | |
168 | ${RELOCATING+*(.gnu.linkonce.d*)} | |
169 | ${CONSTRUCTING+CONSTRUCTORS} | |
170 | } | |
171 | .data1 ${RELOCATING-0} : { *(.data1) } | |
172 | ${RELOCATING+${OTHER_READWRITE_SECTIONS}} | |
173 | .ctors ${RELOCATING-0} : | |
174 | { | |
175 | ${CONSTRUCTING+${CTOR_START}} | |
176 | /* gcc uses crtbegin.o to find the start of the constructors, so | |
177 | we make sure it is first. Because this is a wildcard, it | |
178 | doesn't matter if the user does not actually link against | |
179 | crtbegin.o; the linker won't look for a file to match a | |
180 | wildcard. The wildcard also means that it doesn't matter which | |
181 | directory crtbegin.o is in. */ | |
182 | KEEP (*crtbegin.o(.ctors)) | |
183 | KEEP (*(SORT(.ctors.*))) | |
184 | KEEP (*(.ctors)) | |
185 | ${CONSTRUCTING+${CTOR_END}} | |
186 | } | |
187 | .dtors ${RELOCATING-0} : | |
188 | { | |
189 | ${CONSTRUCTING+${DTOR_START}} | |
190 | KEEP (*crtbegin.o(.dtors)) | |
191 | KEEP (*(SORT(.dtors.*))) | |
192 | KEEP (*(.dtors)) | |
193 | ${CONSTRUCTING+${DTOR_END}} | |
194 | } | |
195 | ${DATA_PLT+${PLT}} | |
196 | ${RELOCATING+${OTHER_GOT_SYMBOLS}} | |
197 | .got ${RELOCATING-0} : { *(.got.plt) *(.got) } | |
198 | ${TEXT_DYNAMIC-${DYNAMIC}} | |
199 | /* We want the small data sections together, so single-instruction offsets | |
200 | can access them all, and initialized data all before uninitialized, so | |
201 | we can shorten the on-disk segment size. */ | |
202 | .sdata ${RELOCATING-0} : { *(.sdata) } | |
203 | ${RELOCATING+${OTHER_GOT_SECTIONS}} | |
204 | ${RELOCATING+_edata = .;} | |
205 | ${RELOCATING+PROVIDE (edata = .);} | |
206 | ${RELOCATING+__bss_start = .;} | |
207 | ${RELOCATING+__bss_start__ = .;} | |
208 | ${RELOCATING+${OTHER_BSS_SYMBOLS}} | |
209 | .sbss ${RELOCATING-0} : { *(.sbss) *(.scommon) } | |
210 | .bss ${RELOCATING-0} : | |
211 | { | |
212 | *(.dynbss) | |
213 | *(.bss) | |
214 | *(COMMON) | |
215 | } | |
216 | ${RELOCATING+. = ALIGN(${ALIGNMENT});} | |
217 | ${RELOCATING+_end = . ;} | |
218 | ${RELOCATING+_bss_end__ = . ;} | |
45834a73 | 219 | ${RELOCATING+__bss_end__ = . ;} |
020c70e9 CM |
220 | ${RELOCATING+PROVIDE (end = .);} |
221 | ||
222 | /* Stabs debugging sections. */ | |
223 | .stab 0 : { *(.stab) } | |
224 | .stabstr 0 : { *(.stabstr) } | |
225 | .stab.excl 0 : { *(.stab.excl) } | |
226 | .stab.exclstr 0 : { *(.stab.exclstr) } | |
227 | .stab.index 0 : { *(.stab.index) } | |
228 | .stab.indexstr 0 : { *(.stab.indexstr) } | |
229 | ||
230 | .comment 0 : { *(.comment) } | |
231 | ||
232 | /* DWARF debug sections. | |
233 | Symbols in the DWARF debugging sections are relative to the beginning | |
234 | of the section so we begin them at 0. */ | |
235 | ||
236 | /* DWARF 1 */ | |
237 | .debug 0 : { *(.debug) } | |
238 | .line 0 : { *(.line) } | |
239 | ||
240 | /* GNU DWARF 1 extensions */ | |
241 | .debug_srcinfo 0 : { *(.debug_srcinfo) } | |
242 | .debug_sfnames 0 : { *(.debug_sfnames) } | |
243 | ||
244 | /* DWARF 1.1 and DWARF 2 */ | |
245 | .debug_aranges 0 : { *(.debug_aranges) } | |
246 | .debug_pubnames 0 : { *(.debug_pubnames) } | |
247 | ||
248 | /* DWARF 2 */ | |
249 | .debug_info 0 : { *(.debug_info) } | |
250 | .debug_abbrev 0 : { *(.debug_abbrev) } | |
251 | .debug_line 0 : { *(.debug_line) } | |
252 | .debug_frame 0 : { *(.debug_frame) } | |
253 | .debug_str 0 : { *(.debug_str) } | |
254 | .debug_loc 0 : { *(.debug_loc) } | |
255 | .debug_macinfo 0 : { *(.debug_macinfo) } | |
256 | ||
257 | /* SGI/MIPS DWARF 2 extensions */ | |
258 | .debug_weaknames 0 : { *(.debug_weaknames) } | |
259 | .debug_funcnames 0 : { *(.debug_funcnames) } | |
260 | .debug_typenames 0 : { *(.debug_typenames) } | |
261 | .debug_varnames 0 : { *(.debug_varnames) } | |
262 | ||
263 | ${RELOCATING+${OTHER_RELOCATING_SECTIONS}} | |
264 | ||
265 | /* These must appear regardless of ${RELOCATING}. */ | |
266 | ${OTHER_SECTIONS} | |
267 | } | |
268 | EOF |