aboutsummaryrefslogtreecommitdiff
path: root/ld/scripttempl/iq2000.sc
blob: e571a58ce9de0d8d8fc8d2d4af004daeb5a0d7fc (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
#
# Unusual variables checked by this code:
#	NOP - four byte opcode for no-op (defaults to 0)
#	DATA_ADDR - if end-of-text-plus-one-page isn't right for data start
#	INITIAL_READONLY_SECTIONS - at start of data segment
#	OTHER_READONLY_SECTIONS - other than .text .init .rodata ...
#		(e.g., .PARISC.milli)
#	OTHER_TEXT_SECTIONS - these get put in .text when relocating
#	OTHER_READWRITE_SECTIONS - other than .data .bss .ctors .sdata ...
#		(e.g., .PARISC.global)
#	OTHER_SECTIONS - at the end
#	EXECUTABLE_SYMBOLS - symbols that must be defined for an
#		executable (e.g., _DYNAMIC_LINK)
#	TEXT_START_SYMBOLS - symbols that appear at the start of the
#		.text section.
#	DATA_START_SYMBOLS - symbols that appear at the start of the
#		.data section.
#	OTHER_GOT_SYMBOLS - symbols defined just before .got.
#	OTHER_GOT_SECTIONS - sections just after .got.
#	OTHER_SDATA_SECTIONS - sections just after .sdata.
#	OTHER_BSS_SYMBOLS - symbols that appear at the start of the
#		.bss section besides __bss_start.
#	DATA_PLT - .plt should be in data segment, not text segment.
#	BSS_PLT - .plt should be in bss segment
#	TEXT_DYNAMIC - .dynamic in text segment, not data segment.
#	EMBEDDED - whether this is for an embedded system. 
#	SHLIB_TEXT_START_ADDR - if set, add to SIZEOF_HEADERS to set
#		start address of shared library.
#	INPUT_FILES - INPUT command of files to always include
#	WRITABLE_RODATA - if set, the .rodata section should be writable
#	INIT_START, INIT_END -  statements just before and just after
# 	combination of .init sections.
#	FINI_START, FINI_END - statements just before and just after
# 	combination of .fini sections.
#
# When adding sections, do note that the names of some sections are used
# when specifying the start address of the next.
#

#  Many sections come in three flavours.  There is the 'real' section,
#  like ".data".  Then there are the per-procedure or per-variable
#  sections, generated by -ffunction-sections and -fdata-sections in GCC,
#  and useful for --gc-sections, which for a variable "foo" might be
#  ".data.foo".  Then there are the linkonce sections, for which the linker
#  eliminates duplicates, which are named like ".gnu.linkonce.d.foo".
#  The exact correspondences are:
#
#  Section	Linkonce section
#  .text	.gnu.linkonce.t.foo
#  .rodata	.gnu.linkonce.r.foo
#  .data	.gnu.linkonce.d.foo
#  .bss		.gnu.linkonce.b.foo
#  .sdata	.gnu.linkonce.s.foo
#  .sbss	.gnu.linkonce.sb.foo
#  .sdata2	.gnu.linkonce.s2.foo
#  .sbss2	.gnu.linkonce.sb2.foo
#
#  Each of these can also have corresponding .rel.* and .rela.* sections.

test -z "$ENTRY" && ENTRY=_start
test -z "${BIG_OUTPUT_FORMAT}" && BIG_OUTPUT_FORMAT=${OUTPUT_FORMAT}
test -z "${LITTLE_OUTPUT_FORMAT}" && LITTLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
if [ -z "$MACHINE" ]; then OUTPUT_ARCH=${ARCH}; else OUTPUT_ARCH=${ARCH}:${MACHINE}; fi
test -z "${ELFSIZE}" && ELFSIZE=32
test -z "${ALIGNMENT}" && ALIGNMENT="${ELFSIZE} / 8"
test "$LD_FLAG" = "N" && DATA_ADDR=.
INTERP=".interp   ${RELOCATING-0} : { *(.interp) 	}"
PLT=".plt    ${RELOCATING-0} : { *(.plt)	}"
DYNAMIC=".dynamic     ${RELOCATING-0} : { *(.dynamic) }"
RODATA=".rodata ${RELOCATING-0} : { *(.rodata) ${RELOCATING+*(.rodata.*)} ${RELOCATING+*(.gnu.linkonce.r.*)} }"
SBSS2=".sbss2 ${RELOCATING-0} : { *(.sbss2) ${RELOCATING+*(.sbss2.*)} ${RELOCATING+*(.gnu.linkonce.sb2.*)} }"
SDATA2=".sdata2 ${RELOCATING-0} : { *(.sdata2) ${RELOCATING+*(.sdata2.*)} ${RELOCATING+*(.gnu.linkonce.s2.*)} }"
CTOR=".ctors ${CONSTRUCTING-0} : 
  {
    ${CONSTRUCTING+${CTOR_START}}
    /* gcc uses crtbegin.o to find the start of
       the constructors, so we make sure it is
       first.  Because this is a wildcard, it
       doesn't matter if the user does not
       actually link against crtbegin.o; the
       linker won't look for a file to match a
       wildcard.  The wildcard also means that it
       doesn't matter which directory crtbegin.o
       is in.  */

    KEEP (*crtbegin.o(.ctors))
    KEEP (*crtbegin?.o(.ctors))

    /* We don't want to include the .ctor section from
       the crtend.o file until after the sorted ctors.
       The .ctor section from the crtend file contains the
       end of ctors marker and it must be last */

    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*(.ctors))
    ${CONSTRUCTING+${CTOR_END}}
  }"

DTOR=" .dtors       ${CONSTRUCTING-0} :
  {
    ${CONSTRUCTING+${DTOR_START}}
    KEEP (*crtbegin.o(.dtors))
    KEEP (*crtbegin?.o(.dtors))
    KEEP (*(EXCLUDE_FILE (*crtend.o *crtend?.o $OTHER_EXCLUDE_FILES) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*(.dtors))
    ${CONSTRUCTING+${DTOR_END}}
  }"

# if this is for an embedded system, don't add SIZEOF_HEADERS.
if [ -z "$EMBEDDED" ]; then
   test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR} + SIZEOF_HEADERS"
else
   test -z "${TEXT_BASE_ADDRESS}" && TEXT_BASE_ADDRESS="${TEXT_START_ADDR}"
fi

cat <<EOF
OUTPUT_FORMAT("${OUTPUT_FORMAT}", "${BIG_OUTPUT_FORMAT}",
	      "${LITTLE_OUTPUT_FORMAT}")
OUTPUT_ARCH(${OUTPUT_ARCH})
${RELOCATING+ENTRY(${ENTRY})}

${RELOCATING+${LIB_SEARCH_DIRS}}
${RELOCATING+/* Do we need any of these for elf?
   __DYNAMIC = 0; ${STACKZERO+${STACKZERO}} ${SHLIB_PATH+${SHLIB_PATH}}  */}
${RELOCATING+${EXECUTABLE_SYMBOLS}}
${RELOCATING+${INPUT_FILES}}
${RELOCATING- /* For some reason, the Solaris linker makes bad executables
  if gld -r is used and the intermediate file has sections starting
  at non-zero addresses.  Could be a Solaris ld bug, could be a GNU ld
  bug.  But for now assigning the zero vmas works.  */}

SECTIONS
{
  ${CREATE_SHLIB-${RELOCATING+. = ${TEXT_BASE_ADDRESS};}}
  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_TEXT_START_ADDR:-0} + SIZEOF_HEADERS;}}
  ${CREATE_SHLIB-${INTERP}}
  ${TEXT_DYNAMIC+${DYNAMIC}}

EOF
if [ "x$COMBRELOC" = x ]; then
  COMBRELOCCAT=cat
else
  COMBRELOCCAT="cat > $COMBRELOC"
fi
eval $COMBRELOCCAT <<EOF
  .rel.init    ${RELOCATING-0} : { *(.rel.init)	}
  .rela.init   ${RELOCATING-0} : { *(.rela.init)	}
  .rel.text    ${RELOCATING-0} :
    {
      *(.rel.text)
      ${RELOCATING+*(.rel.text.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.t.*)}
    }
  .rela.text   ${RELOCATING-0} :
    {
      *(.rela.text)
      ${RELOCATING+*(.rela.text.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.t.*)}
    }
  .rel.fini    ${RELOCATING-0} : { *(.rel.fini)	}
  .rela.fini   ${RELOCATING-0} : { *(.rela.fini)	}
  .rel.rodata  ${RELOCATING-0} :
    {
      *(.rel.rodata)
      ${RELOCATING+*(.rel.rodata.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.r.*)}
    }
  .rela.rodata ${RELOCATING-0} :
    {
      *(.rela.rodata)
      ${RELOCATING+*(.rela.rodata.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.r.*)}
    }
  ${OTHER_READONLY_RELOC_SECTIONS}
  .rel.data    ${RELOCATING-0} :
    {
      *(.rel.data)
      ${RELOCATING+*(.rel.data.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.d.*)}
    }
  .rela.data   ${RELOCATING-0} :
    {
      *(.rela.data)
      ${RELOCATING+*(.rela.data.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.d.*)}
    }
  .rel.ctors   ${RELOCATING-0} : { *(.rel.ctors)	}
  .rela.ctors  ${RELOCATING-0} : { *(.rela.ctors)	}
  .rel.dtors   ${RELOCATING-0} : { *(.rel.dtors)	}
  .rela.dtors  ${RELOCATING-0} : { *(.rela.dtors)	}
  .rel.got     ${RELOCATING-0} : { *(.rel.got)		}
  .rela.got    ${RELOCATING-0} : { *(.rela.got)		}
  ${OTHER_GOT_RELOC_SECTIONS}
  .rel.sdata   ${RELOCATING-0} :
    {
      *(.rel.sdata)
      ${RELOCATING+*(.rel.sdata.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.s.*)}
    }
  .rela.sdata   ${RELOCATING-0} :
    {
      *(.rela.sdata)
      ${RELOCATING+*(.rela.sdata.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.s.*)}
    }
  .rel.sbss    ${RELOCATING-0} :
    { 
      *(.rel.sbss)
      ${RELOCATING+*(.rel.sbss.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.sb.*)}
    }
  .rela.sbss   ${RELOCATING-0} :
    {
      *(.rela.sbss)
      ${RELOCATING+*(.rela.sbss.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.sb.*)}
    }
  .rel.sdata2  ${RELOCATING-0} : 
    { 
      *(.rel.sdata2)
      ${RELOCATING+*(.rel.sdata2.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.s2.*)}
    }
  .rela.sdata2 ${RELOCATING-0} : 
    {
      *(.rela.sdata2)
      ${RELOCATING+*(.rela.sdata2.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.s2.*)}
    }
  .rel.sbss2   ${RELOCATING-0} : 
    { 
      *(.rel.sbss2)	
      ${RELOCATING+*(.rel.sbss2.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.sb2.*)}
    }
  .rela.sbss2  ${RELOCATING-0} : 
    { 
      *(.rela.sbss2)	
      ${RELOCATING+*(.rela.sbss2.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.sb2.*)}
    }
  .rel.bss     ${RELOCATING-0} : 
    { 
      *(.rel.bss)
      ${RELOCATING+*(.rel.bss.*)}
      ${RELOCATING+*(.rel.gnu.linkonce.b.*)}
    }
  .rela.bss    ${RELOCATING-0} : 
    { 
      *(.rela.bss)
      ${RELOCATING+*(.rela.bss.*)}
      ${RELOCATING+*(.rela.gnu.linkonce.b.*)}
    }
EOF
if [ -n "$COMBRELOC" ]; then
cat <<EOF
  .rel.dyn	 :
    {
EOF
sed -e '/^[ 	]*[{}][ 	]*$/d;/:[ 	]*$/d;/\.rela\./d;s/^.*: { *\(.*\)}$/      \1/' $COMBRELOC
cat <<EOF
    }
  .rela.dyn	 :
    {
EOF
sed -e '/^[ 	]*[{}][ 	]*$/d;/:[ 	]*$/d;/\.rel\./d;s/^.*: { *\(.*\)}/      \1/' $COMBRELOC
cat <<EOF
    }
EOF
fi
cat <<EOF
  .rel.plt     ${RELOCATING-0} : { *(.rel.plt)		}
  .rela.plt    ${RELOCATING-0} : { *(.rela.plt)		}
  ${OTHER_PLT_RELOC_SECTIONS}

  .init        ${RELOCATING-0} : 
  { 
    ${RELOCATING+${INIT_START}}
    KEEP (*(.init))
    ${RELOCATING+${INIT_END}}
  } =${NOP-0}

  ${DATA_PLT-${BSS_PLT-${PLT}}}
  .text    ${RELOCATING-0} :
  {
    ${RELOCATING+${TEXT_START_SYMBOLS}}
    *(.text)
    ${RELOCATING+*(.text.*)}
    *(.stub)
    /* .gnu.warning sections are handled specially by elf32.em.  */
    *(.gnu.warning)
    ${RELOCATING+*(.gnu.linkonce.t.*)}
    ${RELOCATING+${OTHER_TEXT_SECTIONS}}
  } =${NOP-0}
  .fini    ${RELOCATING-0} :
  {
    ${RELOCATING+${FINI_START}}
    KEEP (*(.fini))
    ${RELOCATING+${FINI_END}}
  } =${NOP-0}
  ${RELOCATING+PROVIDE (__etext = .);}
  ${RELOCATING+PROVIDE (_etext = .);}
  ${RELOCATING+PROVIDE (etext = .);}

  /* Adjust the address for the data segment.  We want to adjust up to
     the same address within the page on the next page up.  */
  ${CREATE_SHLIB-${RELOCATING+. = ${DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}
  ${CREATE_SHLIB+${RELOCATING+. = ${SHLIB_DATA_ADDR-ALIGN(${MAXPAGESIZE}) + (. & (${MAXPAGESIZE} - 1))};}}

  .data  ${RELOCATING-0} :
  {
    ${RELOCATING+${DATA_START_SYMBOLS}}
    *(.data)
    ${RELOCATING+*(.data.*)}
    ${RELOCATING+*(.gnu.linkonce.d.*)}
    ${CONSTRUCTING+SORT(CONSTRUCTORS)}
  }
  .data1 ${RELOCATING-0} : { *(.data1) }
  .eh_frame ${RELOCATING-0} : 
  { 
    ${RELOCATING+PROVIDE (__eh_frame_begin = .);}
    *(.eh_frame) 
    LONG (0);
    ${RELOCATING+PROVIDE (__eh_frame_end = .);}
  } ${RELOCATING+}
  .gcc_except_table : { *(.gcc_except_table) }
  ${INITIAL_READONLY_SECTIONS}
  .hash        ${RELOCATING-0} : { *(.hash)		}
  .dynsym      ${RELOCATING-0} : { *(.dynsym)		}
  .dynstr      ${RELOCATING-0} : { *(.dynstr)		}
  .gnu.version ${RELOCATING-0} : { *(.gnu.version)	}
  .gnu.version_d ${RELOCATING-0} : { *(.gnu.version_d)	}
  .gnu.version_r ${RELOCATING-0} : { *(.gnu.version_r)	}
  ${RODATA}
  .rodata1 ${RELOCATING-0} : { *(.rodata1) }
  ${CREATE_SHLIB-${SDATA2}}
  ${CREATE_SHLIB-${SBSS2}}
  ${RELOCATING+${OTHER_READONLY_SECTIONS}}
  ${RELOCATING+${OTHER_READWRITE_SECTIONS}}
  ${TEXT_DYNAMIC-${DYNAMIC}}
  ${RELOCATING+${CTOR}}
  ${RELOCATING+${DTOR}}
  .jcr : { KEEP (*(.jcr)) }
  ${DATA_PLT+${PLT}}
  ${RELOCATING+${OTHER_GOT_SYMBOLS}}
  .got		${RELOCATING-0} : { *(.got.plt) *(.got) }
  ${RELOCATING+${OTHER_GOT_SECTIONS}}
  ${CREATE_SHLIB+${SDATA2}}
  ${CREATE_SHLIB+${SBSS2}}
  /* We want the small data sections together, so single-instruction offsets
     can access them all, and initialized data all before uninitialized, so
     we can shorten the on-disk segment size.  */
  .sdata   ${RELOCATING-0} : 
  {
    ${RELOCATING+${SDATA_START_SYMBOLS}}
    *(.sdata) 
    ${RELOCATING+*(.sdata.*)}
    ${RELOCATING+*(.gnu.linkonce.s.*)}
  }
  ${RELOCATING+${OTHER_SDATA_SECTIONS}}
  ${RELOCATING+_edata = .;}
  ${RELOCATING+PROVIDE (edata = .);}
  ${RELOCATING+__bss_start = .;}
  ${RELOCATING+${OTHER_BSS_SYMBOLS}}
  .sbss    ${RELOCATING-0} :
  {
    ${RELOCATING+PROVIDE (__sbss_start = .);}
    ${RELOCATING+PROVIDE (___sbss_start = .);}
    *(.dynsbss)
    *(.sbss)
    ${RELOCATING+*(.sbss.*)}
    ${RELOCATING+*(.gnu.linkonce.sb.*)}
    *(.scommon)
    ${RELOCATING+PROVIDE (__sbss_end = .);}
    ${RELOCATING+PROVIDE (___sbss_end = .);}
  }
  ${BSS_PLT+${PLT}}
  .bss     ${RELOCATING-0} :
  {
   *(.dynbss)
   *(.bss)
   ${RELOCATING+*(.bss.*)}
   ${RELOCATING+*(.gnu.linkonce.b.*)}
   *(COMMON)
   /* Align here to ensure that the .bss section occupies space up to
      _end.  Align after .bss to ensure correct alignment even if the
      .bss section disappears because there are no input sections.  */
   ${RELOCATING+. = ALIGN(${ALIGNMENT});}
  }
  ${RELOCATING+${OTHER_BSS_END_SYMBOLS}}
  ${RELOCATING+. = ALIGN(${ALIGNMENT});}
  ${RELOCATING+${OTHER_END_SYMBOLS}}
  ${RELOCATING+_end = .;}
  ${RELOCATING+PROVIDE (end = .);}

  /* Stabs debugging sections.  */
  .stab 0 : { *(.stab) }
  .stabstr 0 : { *(.stabstr) }
  .stab.excl 0 : { *(.stab.excl) }
  .stab.exclstr 0 : { *(.stab.exclstr) }
  .stab.index 0 : { *(.stab.index) }
  .stab.indexstr 0 : { *(.stab.indexstr) }

  .comment 0 : { *(.comment) }

  /* DWARF debug sections.
     Symbols in the DWARF debugging sections are relative to the beginning
     of the section so we begin them at 0.  */

  /* DWARF 1 */
  .debug          0 : { *(.debug) }
  .line           0 : { *(.line) }

  /* GNU DWARF 1 extensions */
  .debug_srcinfo  0 : { *(.debug_srcinfo) }
  .debug_sfnames  0 : { *(.debug_sfnames) }

  /* DWARF 1.1 and DWARF 2 */
  .debug_aranges  0 : { *(.debug_aranges) }
  .debug_pubnames 0 : { *(.debug_pubnames) }

  /* DWARF 2 */
  .debug_info     0 : { *(.debug_info) *(.gnu.linkonce.wi.*) }
  .debug_abbrev   0 : { *(.debug_abbrev) }
  .debug_line     0 : { *(.debug_line) }
  .debug_frame    0 : { *(.debug_frame) }
  .debug_str      0 : { *(.debug_str) }
  .debug_loc      0 : { *(.debug_loc) }
  .debug_macinfo  0 : { *(.debug_macinfo) }

  /* SGI/MIPS DWARF 2 extensions */
  .debug_weaknames 0 : { *(.debug_weaknames) }
  .debug_funcnames 0 : { *(.debug_funcnames) }
  .debug_typenames 0 : { *(.debug_typenames) }
  .debug_varnames  0 : { *(.debug_varnames) }

  ${RELOCATING+${OTHER_RELOCATING_SECTIONS}}

  /* These must appear regardless of ${RELOCATING}.  */
  ${OTHER_SECTIONS}
}
EOF