gold/testsuite/two_file_test_2_tls.cc

   1 // two_file_test_2_tls.cc -- a two file test case for gold, with a TLS symbol
   2
   3 // Copyright (C) 2006-2020 Free Software Foundation, Inc.
   4 // Written by Ian Lance Taylor <iant@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 // This tests references between files.  This is file 2, and
  24 // two_file_test_1.cc is file 1.  See file 1 for details.
  25
  26 #include "two_file_test.h"
  27
  28 // 1  Code in file 1 calls code in file 2.
  29
  30 __thread int tls1 = 123;
  31
  32 int
  33 t1_2()
  34 {
  35   return tls1;
  36 }
  37
  38 bool
  39 t1a()
  40 {
  41   return t1_2() == 123;
  42 }
  43
  44 // 2  Code in file 1 refers to global data in file 2.
  45
  46 int v2 = 456;
  47
  48 // 3 Code in file 1 referes to common symbol in file 2.  This is
  49 // initialized at runtime to 789.
  50
  51 int v3;
  52
  53 // 4  Code in file 1 refers to offset within global data in file 2.
  54
  55 char v4[] = "Hello, world";
  56
  57 // 5 Code in file 1 refers to offset within common symbol in file 2.
  58 // This is initialized at runtime to a copy of v4.
  59
  60 char v5[13];
  61
  62 // 6  Data in file 1 refers to global data in file 2.  This reuses v2.
  63
  64 // 7  Data in file 1 refers to common symbol in file 2.  This reuses v3.
  65
  66 // 8 Data in file 1 refers to offset within global data in file 2.
  67 // This reuses v4.
  68
  69 // 9 Data in file 1 refers to offset within common symbol in file 2.
  70 // This reuses v5.
  71
  72 // 10 Data in file 1 refers to function in file 2.
  73
  74 int
  75 f10()
  76 {
  77   return 135;
  78 }
  79
  80 // 11 Pass function pointer from file 1 to file 2.
  81
  82 int
  83 f11b(int (*pfn)())
  84 {
  85   return (*pfn)();
  86 }
  87
  88 // 12 Compare address of function for equality in both files.
  89
  90 bool
  91 (*f12())()
  92 {
  93   return &t12;
  94 }
  95
  96 // 13 Compare address of inline function for equality in both files.
  97
  98 void
  99 (*f13())()
 100 {
 101   return &f13i;
 102 }
 103
 104 // 14 Compare string constants in file 1 and file 2.
 105
 106 const char*
 107 f14()
 108 {
 109   return TEST_STRING_CONSTANT;
 110 }
 111
 112 // 15 Compare wide string constants in file 1 and file 2.
 113
 114 const wchar_t*
 115 f15()
 116 {
 117   return TEST_WIDE_STRING_CONSTANT;
 118 }
 119
 120 // 17 File 1 checks array of string constants defined in file 2.
 121
 122 const char* t17data[T17_COUNT] =
 123 {
 124   "a", "b", "c", "d", "e"
 125 };
 126
 127 // 18 File 1 checks string constants referenced directly in file 2.
 128
 129 const char*
 130 f18(int i)
 131 {
 132   switch (i)
 133     {
 134     case 0:
 135       return "a";
 136     case 1:
 137       return "b";
 138     case 2:
 139       return "c";
 140     case 3:
 141       return "d";
 142     case 4:
 143       return "e";
 144     default:
 145       return 0;
 146     }
 147 }