gold/testsuite/plugin_layout_with_alignment.c

   1 // plugin_layout_with_alignment.cc -- a test case for gold
   2
   3 // Copyright (C) 2016-2021 Free Software Foundation, Inc.
   4 // Written by Than McIntosh <thanm@google.com>.
   5
   6 // This file is part of gold.
   7
   8 // This program is free software; you can redistribute it and/or modify
   9 // it under the terms of the GNU General Public License as published by
  10 // the Free Software Foundation; either version 3 of the License, or
  11 // (at your option) any later version.
  12
  13 // This program is distributed in the hope that it will be useful,
  14 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 // GNU General Public License for more details.
  17
  18 // You should have received a copy of the GNU General Public License
  19 // along with this program; if not, write to the Free Software
  20 // Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
  21 // MA 02110-1301, USA.
  22
  23 // Verify that plugin interfaces for section size and alignment work
  24 // correctly, and that section ordering via plugins is working
  25 // for .bss/.rodata/.data sections.
  26
  27 // --- Initialized .rodata items
  28
  29 __attribute__ ((section(".rodata.v1_a2"), aligned(2)))
  30 const short rodata_item1 = 101;
  31
  32 __attribute__ ((section(".rodata.v2_a1"), aligned(1)))
  33 const char rodata_item2 = 'a';
  34
  35 __attribute__ ((section(".rodata.v3_a8"), aligned(8)))
  36 const double rodata_item3 = 777.777;
  37
  38 __attribute__ ((section(".rodata.v4_a1"), aligned(1)))
  39 const char rodata_item4[7] = {'1', '2', '3', '4', '5', '6', '7'};
  40
  41 // --- Initialized .data items
  42
  43 __attribute__ ((section(".data.v1_a2"), aligned(2)))
  44 short rwdata_item1 = 101;
  45
  46 __attribute__ ((section(".data.v2_a1"), aligned(1)))
  47 char rwdata_item2 = 'a';
  48
  49 __attribute__ ((section(".data.v3_a8"), aligned(8)))
  50 double rwdata_item3 = 'b';
  51
  52 __attribute__ ((section(".data.v4_a1"), aligned(1)))
  53 char rwdata_item4[3] = {'a', 'b', 'c'};
  54
  55 // --- Uninitialized .data items
  56
  57 __attribute__ ((section(".bss.v1_a2"), aligned(2)))
  58 short bss_item1;
  59
  60 __attribute__ ((section(".bss.v2_a1"), aligned(1)))
  61 char bss_item2;
  62
  63 __attribute__ ((section(".bss.v3_a8"), aligned(8)))
  64 struct blah { union { double d; char c; } u; } bss_item3;
  65
  66 __attribute__ ((section(".bss.v4_a1"), aligned(1)))
  67 char bss_item4[3];
  68
  69 int main (void)
  70 {
  71   return 0;
  72 }