ld/scripttempl/pe.sc

   1 # Linker script for PE.
   2 #
   3 # Copyright (C) 2014-2021 Free Software Foundation, Inc.
   4 #
   5 # Copying and distribution of this file, with or without modification,
   6 # are permitted in any medium without royalty provided the copyright
   7 # notice and this notice are preserved.
   8
   9 if test -z "${RELOCATEABLE_OUTPUT_FORMAT}"; then
  10   RELOCATEABLE_OUTPUT_FORMAT=${OUTPUT_FORMAT}
  11 fi
  12
  13 # We can't easily and portably get an unquoted $ in a shell
  14 # substitution, so we do this instead.
  15 # Sorting of the .foo$* sections is required by the definition of
  16 # grouped sections in PE.
  17 # Sorting of the file names in R_IDATA is required by the
  18 # current implementation of dlltool (this could probably be changed to
  19 # use grouped sections instead).
  20 if test "${RELOCATING}"; then
  21   R_TEXT='*(SORT(.text$*))'
  22   if test "x$LD_FLAG" = "xauto_import" ; then
  23     R_DATA='*(SORT(.data$*))
  24             *(.rdata)
  25             *(SORT(.rdata$*))'
  26     R_RDATA=''
  27   else
  28     R_DATA='*(SORT(.data$*))'
  29     R_RDATA='*(.rdata)
  30              *(SORT(.rdata$*))'
  31   fi
  32   R_IDATA234='
  33     KEEP (SORT(*)(.idata$2))
  34     KEEP (SORT(*)(.idata$3))
  35     /* These zeroes mark the end of the import list.  */
  36     LONG (0); LONG (0); LONG (0); LONG (0); LONG (0);
  37     KEEP (SORT(*)(.idata$4))'
  38   R_IDATA5='KEEP (SORT(*)(.idata$5))'
  39   R_IDATA67='
  40     KEEP (SORT(*)(.idata$6))
  41     KEEP (SORT(*)(.idata$7))'
  42   R_CRT_XC='KEEP (*(SORT(.CRT$XC*)))  /* C initialization */'
  43   R_CRT_XI='KEEP (*(SORT(.CRT$XI*)))  /* C++ initialization */'
  44   R_CRT_XL='KEEP (*(SORT(.CRT$XL*)))  /* TLS callbacks */'
  45   R_CRT_XP='KEEP (*(SORT(.CRT$XP*)))  /* Pre-termination */'
  46   R_CRT_XT='KEEP (*(SORT(.CRT$XT*)))  /* Termination */'
  47   R_TLS='
  48     KEEP (*(.tls$AAA))
  49     KEEP (*(.tls))
  50     KEEP (*(.tls$))
  51     KEEP (*(SORT(.tls$*)))
  52     KEEP (*(.tls$ZZZ))'
  53   R_RSRC='
  54     KEEP (*(.rsrc))
  55     KEEP (*(.rsrc$*))'
  56 else
  57   R_TEXT=
  58   R_DATA=
  59   R_RDATA='*(.rdata)'
  60   R_IDATA234=
  61   R_IDATA5=
  62   R_IDATA67=
  63   R_CRT_XC=
  64   R_CRT_XI=
  65   R_CRT_XL=
  66   R_CRT_XP=
  67   R_CRT_XT=
  68   R_TLS='*(.tls)'
  69   R_RSRC='*(.rsrc)'
  70 fi
  71
  72 cat <<EOF
  73 /* Copyright (C) 2014-2021 Free Software Foundation, Inc.
  74
  75    Copying and distribution of this script, with or without modification,
  76    are permitted in any medium without royalty provided the copyright
  77    notice and this notice are preserved.  */
  78
  79 ${RELOCATING+OUTPUT_FORMAT(${OUTPUT_FORMAT})}
  80 ${RELOCATING-OUTPUT_FORMAT(${RELOCATEABLE_OUTPUT_FORMAT})}
  81 ${OUTPUT_ARCH+OUTPUT_ARCH(${OUTPUT_ARCH})}
  82
  83 ${LIB_SEARCH_DIRS}
  84
  85 SECTIONS
  86 {
  87   ${RELOCATING+/* Make the virtual address and file offset synced if the alignment is}
  88   ${RELOCATING+   lower than the target page size. */}
  89   ${RELOCATING+. = SIZEOF_HEADERS;}
  90   ${RELOCATING+. = ALIGN(__section_alignment__);}
  91   .text ${RELOCATING+ __image_base__ + ( __section_alignment__ < ${TARGET_PAGE_SIZE} ? . : __section_alignment__ )} :
  92   {
  93     ${RELOCATING+KEEP (*(SORT_NONE(.init)))}
  94     *(.text)
  95     ${R_TEXT}
  96     ${RELOCATING+ *(.text.*)}
  97     ${RELOCATING+ *(.gnu.linkonce.t.*)}
  98     ${RELOCATING+*(.glue_7t)}
  99     ${RELOCATING+*(.glue_7)}
 100     ${CONSTRUCTING+
 101        /* Note: we always define __CTOR_LIST__ and ___CTOR_LIST__ here,
 102           we do not PROVIDE them.  This is because the ctors.o startup
 103           code in libgcc defines them as common symbols, with the
 104           expectation that they will be overridden by the definitions
 105           here.  If we PROVIDE the symbols then they will not be
 106           overridden and global constructors will not be run.
 107           See PR 22762 for more details.
 108
 109           This does mean that it is not possible for a user to define
 110           their own __CTOR_LIST__ and __DTOR_LIST__ symbols; if they do,
 111           the content from those variables are included but the symbols
 112           defined here silently take precedence.  If they truly need to
 113           be redefined, a custom linker script will have to be used.
 114           (The custom script can just be a copy of this script with the
 115           PROVIDE() qualifiers added).
 116
 117           In particular this means that ld -Ur does not work, because
 118           the proper __CTOR_LIST__ set by ld -Ur is overridden by a
 119           bogus __CTOR_LIST__ set by the final link.  See PR 46.  */
 120        ___CTOR_LIST__ = .;
 121        __CTOR_LIST__ = .;
 122        LONG (-1);
 123        KEEP(*(.ctors));
 124        KEEP(*(.ctor));
 125        KEEP(*(SORT_BY_NAME(.ctors.*)));
 126        LONG (0);
 127      }
 128     ${CONSTRUCTING+
 129        /* See comment about __CTOR_LIST__ above.  The same reasoning
 130           applies here too.  */
 131        ___DTOR_LIST__ = .;
 132        __DTOR_LIST__ = .;
 133        LONG (-1);
 134        KEEP(*(.dtors));
 135        KEEP(*(.dtor));
 136        KEEP(*(SORT_BY_NAME(.dtors.*)));
 137        LONG (0);
 138      }
 139     ${RELOCATING+KEEP (*(SORT_NONE(.fini)))}
 140     ${RELOCATING+/* ??? Why is .gcc_exc here?  */}
 141     ${RELOCATING+ *(.gcc_exc)}
 142     ${RELOCATING+PROVIDE (etext = .);}
 143     ${RELOCATING+PROVIDE (_etext = .);}
 144     ${RELOCATING+ KEEP (*(.gcc_except_table))}
 145   }
 146
 147   /* The Cygwin32 library uses a section to avoid copying certain data
 148      on fork.  This used to be named ".data$nocopy".  The linker used
 149      to include this between __data_start__ and __data_end__, but that
 150      breaks building the cygwin32 dll.  Instead, we name the section
 151      ".data_cygwin_nocopy" and explicitly include it after __data_end__. */
 152
 153   .data ${RELOCATING+BLOCK(__section_alignment__)} :
 154   {
 155     ${RELOCATING+__data_start__ = . ;}
 156     *(.data)
 157     ${RELOCATING+*(.data2)}
 158     ${R_DATA}
 159     KEEP(*(.jcr))
 160     ${RELOCATING+__data_end__ = . ;}
 161     ${RELOCATING+*(.data_cygwin_nocopy)}
 162   }
 163
 164   .rdata ${RELOCATING+BLOCK(__section_alignment__)} :
 165   {
 166     ${R_RDATA}
 167     . = ALIGN(4);
 168     ${RELOCATING+__rt_psrelocs_start = .;}
 169     ${RELOCATING+KEEP(*(.rdata_runtime_pseudo_reloc))}
 170     ${RELOCATING+__rt_psrelocs_end = .;}
 171   }
 172   ${RELOCATING+__rt_psrelocs_size = __rt_psrelocs_end - __rt_psrelocs_start;}
 173   ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
 174   ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST_END__ = .;}
 175   ${RELOCATING+___RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
 176   ${RELOCATING+__RUNTIME_PSEUDO_RELOC_LIST__ = . - __rt_psrelocs_size;}
 177
 178   .eh_frame ${RELOCATING+BLOCK(__section_alignment__)} :
 179   {
 180     KEEP(*(.eh_frame${RELOCATING+*}))
 181   }
 182
 183   .pdata ${RELOCATING+BLOCK(__section_alignment__)} :
 184   {
 185     KEEP(*(.pdata${RELOCATING+*}))
 186   }
 187
 188   .bss ${RELOCATING+BLOCK(__section_alignment__)} :
 189   {
 190     ${RELOCATING+__bss_start__ = . ;}
 191     *(.bss)
 192     *(COMMON)
 193     ${RELOCATING+__bss_end__ = . ;}
 194   }
 195
 196   .edata ${RELOCATING+BLOCK(__section_alignment__)} :
 197   {
 198     *(.edata)
 199   }
 200
 201   /DISCARD/ :
 202   {
 203     *(.debug\$S)
 204     *(.debug\$T)
 205     *(.debug\$F)
 206     *(.drectve)
 207     ${RELOCATING+ *(.note.GNU-stack)}
 208     ${RELOCATING+ *(.gnu.lto_*)}
 209   }
 210
 211   .idata ${RELOCATING+BLOCK(__section_alignment__)} :
 212   {
 213     /* This cannot currently be handled with grouped sections.
 214         See pe.em:sort_sections.  */
 215     ${R_IDATA234}
 216     ${RELOCATING+__IAT_start__ = .;}
 217     ${R_IDATA5}
 218     ${RELOCATING+__IAT_end__ = .;}
 219     ${R_IDATA67}
 220   }
 221   .CRT ${RELOCATING+BLOCK(__section_alignment__)} :
 222   {
 223     ${RELOCATING+___crt_xc_start__ = . ;}
 224     ${R_CRT_XC}
 225     ${RELOCATING+___crt_xc_end__ = . ;}
 226     ${RELOCATING+___crt_xi_start__ = . ;}
 227     ${R_CRT_XI}
 228     ${RELOCATING+___crt_xi_end__ = . ;}
 229     ${RELOCATING+___crt_xl_start__ = . ;}
 230     ${R_CRT_XL}
 231     /* ___crt_xl_end__ is defined in the TLS Directory support code */
 232     ${RELOCATING+___crt_xp_start__ = . ;}
 233     ${R_CRT_XP}
 234     ${RELOCATING+___crt_xp_end__ = . ;}
 235     ${RELOCATING+___crt_xt_start__ = . ;}
 236     ${R_CRT_XT}
 237     ${RELOCATING+___crt_xt_end__ = . ;}
 238   }
 239
 240   /* Windows TLS expects .tls\$AAA to be at the start and .tls\$ZZZ to be
 241      at the end of section.  This is important because _tls_start MUST
 242      be at the beginning of the section to enable SECREL32 relocations with TLS
 243      data.  */
 244   .tls ${RELOCATING+BLOCK(__section_alignment__)} :
 245   {
 246     ${RELOCATING+___tls_start__ = . ;}
 247     ${R_TLS}
 248     ${RELOCATING+___tls_end__ = . ;}
 249   }
 250
 251   .endjunk ${RELOCATING+BLOCK(__section_alignment__)} :
 252   {
 253     /* end is deprecated, don't use it */
 254     ${RELOCATING+PROVIDE (end = .);}
 255     ${RELOCATING+PROVIDE ( _end = .);}
 256     ${RELOCATING+ __end__ = .;}
 257   }
 258
 259   .rsrc ${RELOCATING+BLOCK(__section_alignment__)} : SUBALIGN(4)
 260   {
 261     ${R_RSRC}
 262   }
 263
 264   .reloc ${RELOCATING+BLOCK(__section_alignment__)} :
 265   {
 266     *(.reloc)
 267   }
 268
 269   .stab ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 270   {
 271     *(.stab)
 272   }
 273
 274   .stabstr ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 275   {
 276     *(.stabstr)
 277   }
 278
 279   /* DWARF debug sections.
 280      Symbols in the DWARF debugging sections are relative to the beginning
 281      of the section.  Unlike other targets that fake this by putting the
 282      section VMA at 0, the PE format will not allow it.  */
 283
 284   /* DWARF 1.1 and DWARF 2.  */
 285   .debug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 286   {
 287     *(.debug_aranges)
 288   }
 289   .zdebug_aranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 290   {
 291     *(.zdebug_aranges)
 292   }
 293
 294   .debug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 295   {
 296     *(.debug_pubnames)
 297   }
 298   .zdebug_pubnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 299   {
 300     *(.zdebug_pubnames)
 301   }
 302
 303   .debug_pubtypes ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 304   {
 305     *(.debug_pubtypes)
 306   }
 307   .zdebug_pubtypes ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 308   {
 309     *(.zdebug_pubtypes)
 310   }
 311
 312   /* DWARF 2.  */
 313   .debug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 314   {
 315     *(.debug_info${RELOCATING+ .gnu.linkonce.wi.*})
 316   }
 317   .zdebug_info ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 318   {
 319     *(.zdebug_info${RELOCATING+ .zdebug.gnu.linkonce.wi.*})
 320   }
 321
 322   .debug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 323   {
 324     *(.debug_abbrev)
 325   }
 326   .zdebug_abbrev ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 327   {
 328     *(.zdebug_abbrev)
 329   }
 330
 331   .debug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 332   {
 333     *(.debug_line)
 334   }
 335   .zdebug_line ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 336   {
 337     *(.zdebug_line)
 338   }
 339
 340   .debug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 341   {
 342     *(.debug_frame*)
 343   }
 344   .zdebug_frame ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 345   {
 346     *(.zdebug_frame*)
 347   }
 348
 349   .debug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 350   {
 351     *(.debug_str)
 352   }
 353   .zdebug_str ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 354   {
 355     *(.zdebug_str)
 356   }
 357
 358   .debug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 359   {
 360     *(.debug_loc)
 361   }
 362   .zdebug_loc ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 363   {
 364     *(.zdebug_loc)
 365   }
 366
 367   .debug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 368   {
 369     *(.debug_macinfo)
 370   }
 371   .zdebug_macinfo ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 372   {
 373     *(.zdebug_macinfo)
 374   }
 375
 376   /* SGI/MIPS DWARF 2 extensions.  */
 377   .debug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 378   {
 379     *(.debug_weaknames)
 380   }
 381   .zdebug_weaknames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 382   {
 383     *(.zdebug_weaknames)
 384   }
 385
 386   .debug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 387   {
 388     *(.debug_funcnames)
 389   }
 390   .zdebug_funcnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 391   {
 392     *(.zdebug_funcnames)
 393   }
 394
 395   .debug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 396   {
 397     *(.debug_typenames)
 398   }
 399   .zdebug_typenames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 400   {
 401     *(.zdebug_typenames)
 402   }
 403
 404   .debug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 405   {
 406     *(.debug_varnames)
 407   }
 408   .zdebug_varnames ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 409   {
 410     *(.zdebug_varnames)
 411   }
 412
 413   .debug_macro ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 414   {
 415     *(.debug_macro)
 416   }
 417   .zdebug_macro ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 418   {
 419     *(.zdebug_macro)
 420   }
 421
 422   /* DWARF 3.  */
 423   .debug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 424   {
 425     *(.debug_ranges)
 426   }
 427   .zdebug_ranges ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 428   {
 429     *(.zdebug_ranges)
 430   }
 431
 432   /* DWARF 4.  */
 433   .debug_types ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 434   {
 435     *(.debug_types${RELOCATING+ .gnu.linkonce.wt.*})
 436   }
 437   .zdebug_types ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 438   {
 439     *(.zdebug_types${RELOCATING+ .gnu.linkonce.wt.*})
 440   }
 441
 442   /* For Go and Rust.  */
 443   .debug_gdb_scripts ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 444   {
 445     *(.debug_gdb_scripts)
 446   }
 447   .zdebug_gdb_scripts ${RELOCATING+BLOCK(__section_alignment__)} ${RELOCATING+(NOLOAD)} :
 448   {
 449     *(.zdebug_gdb_scripts)
 450   }
 451 }
 452 EOF