ld/scripttempl/aix.sc

   1 # AIX linker script.
   2 # AIX always uses shared libraries.  The section VMA appears to be
   3 # unimportant.  The native linker aligns the sections on boundaries
   4 # specified by the -H option.
   5 #
   6 # Copyright (C) 2014-2022 Free Software Foundation, Inc.
   7 #
   8 # Copying and distribution of this file, with or without modification,
   9 # are permitted in any medium without royalty provided the copyright
  10 # notice and this notice are preserved.
  11
  12 cat <<EOF
  13 /* Copyright (C) 2014-2022 Free Software Foundation, Inc.
  14
  15    Copying and distribution of this script, with or without modification,
  16    are permitted in any medium without royalty provided the copyright
  17    notice and this notice are preserved.  */
  18
  19 OUTPUT_ARCH(${ARCH})
  20 ${RELOCATING+${LIB_SEARCH_DIRS}}
  21 ${RELOCATING+ENTRY (__start)}
  22 SECTIONS
  23 {
  24   .pad 0 : { *(.pad) }
  25
  26   . = ALIGN (0x10000000 + SIZEOF_HEADERS, 32);
  27   .text ${RELOCATING-0} : {
  28     ${RELOCATING+PROVIDE (_text = .);}
  29     *(.text)
  30     *(.pr)
  31     *(.ro)
  32     *(.db)
  33     *(.gl)
  34     *(.xo)
  35     *(.ti)
  36     *(.tb)
  37     ${RELOCATING+PROVIDE (_etext = .);}
  38   }
  39
  40   /* .tdata and .tbss addresses are representing the offset from
  41      the TLS pointer. It starts at -0x7800 for 64bit and -0x7c00
  42      for 32bit.
  43      TODO: 32bit should have -0x7c00 but it works like this for
  44      now.
  45      The other particularity is that they must be before .data
  46      sections. But .data must be aligned correctly as if the
  47      addresses were contiguous. This means that the correct
  48      address must be restored, taking into account: the size of
  49      .text, its alignment 2^5, the size of .tdata and its
  50      aligment 2^4.  */
  51   .tdata -0x7800 : {
  52     *(.tdata)
  53     *(.tl)
  54   }
  55
  56   .tbss : {
  57     *(.tbss)
  58     *(.ul)
  59   }
  60
  61   . = ${RELOCATING+(ALIGN (0x10000000 + SIZEOF_HEADERS, 32)) + }SIZEOF(.text);
  62   . = ALIGN (.,32);
  63   . = . + SIZEOF(.tdata);
  64   . = ALIGN (.,16);
  65
  66   /* .data starting address must be in a different segment than
  67      the .text addresses. Thus, 0x10000000 is added.  */
  68   . = ALIGN (0x10000000) + (. & 0xfff);
  69   .data . : {
  70     ${RELOCATING+PROVIDE (_data = .);}
  71     *(.data)
  72     *(.rw)
  73     *(.sv)
  74     *(.sv64)
  75     *(.sv3264)
  76     *(.ua)
  77     . = ALIGN(4);
  78     ${CONSTRUCTING+CONSTRUCTORS}
  79     *(.ds)
  80     *(.tc0)
  81     *(.tc)
  82     *(.td)
  83     *(.te)
  84     ${RELOCATING+PROVIDE (_edata = .);}
  85   }
  86   .bss : {
  87     *(.tocbss)
  88     *(.bss)
  89     *(.bs)
  90     *(.uc)
  91     *(COMMON)
  92     ${RELOCATING+PROVIDE (_end = .);}
  93     ${RELOCATING+PROVIDE (end = .);}
  94   }
  95
  96   .loader : {
  97     *(.loader)
  98   }
  99
 100   .debug : {
 101     *(.debug)
 102   }
 103 }
 104 EOF