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      1 // two_file_test_2_v1.cc -- a two file test case for gold, file 2 of 2
      2 
      3 // Copyright (C) 2006-2014 Free Software Foundation, Inc.
      4 // Written by Ian Lance Taylor <iant (at) 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 is an alternate version of the source file two_file_test_2.cc,
     24 // used to test incremental linking.  We build a binary first using this
     25 // source file, then do an incremental link with the primary version of
     26 // the file.
     27 
     28 // This tests references between files.  This is file 2, and
     29 // two_file_test_1.cc is file 1.  See file 1 for details.
     30 
     31 #include "two_file_test.h"
     32 
     33 // 1  Code in file 1 calls code in file 2.
     34 
     35 int
     36 t1_2()
     37 {
     38   return 0;
     39 }
     40 
     41 bool
     42 t1a()
     43 {
     44   return t1_2() == 0;
     45 }
     46 
     47 // 2  Code in file 1 refers to global data in file 2.
     48 
     49 int v2 = 1;
     50 
     51 // 3 Code in file 1 referes to common symbol in file 2.  This is
     52 // initialized at runtime to 789.
     53 
     54 int v3;
     55 
     56 // 4  Code in file 1 refers to offset within global data in file 2.
     57 
     58 char v4[] = "World, hello";
     59 
     60 // 5 Code in file 1 refers to offset within common symbol in file 2.
     61 // This is initialized at runtime to a copy of v4.
     62 
     63 char v5[13];
     64 
     65 // 6  Data in file 1 refers to global data in file 2.  This reuses v2.
     66 
     67 // 7  Data in file 1 refers to common symbol in file 2.  This reuses v3.
     68 
     69 // 8 Data in file 1 refers to offset within global data in file 2.
     70 // This reuses v4.
     71 
     72 // 9 Data in file 1 refers to offset within common symbol in file 2.
     73 // This reuses v5.
     74 
     75 // 10 Data in file 1 refers to function in file 2.
     76 
     77 int
     78 f10()
     79 {
     80   return 0;
     81 }
     82 
     83 // 11 Pass function pointer from file 1 to file 2.
     84 
     85 int
     86 f11b(int (*pfn)())
     87 {
     88   return (*pfn)();
     89 }
     90 
     91 // 12 Compare address of function for equality in both files.
     92 
     93 bool
     94 (*f12())()
     95 {
     96   return &t12;
     97 }
     98 
     99 // 13 Compare address of inline function for equality in both files.
    100 
    101 void
    102 (*f13())()
    103 {
    104   return &f13i;
    105 }
    106 
    107 // 14 Compare string constants in file 1 and file 2.
    108 
    109 const char*
    110 f14()
    111 {
    112   return TEST_STRING_CONSTANT;
    113 }
    114 
    115 // 15 Compare wide string constants in file 1 and file 2.
    116 
    117 const wchar_t*
    118 f15()
    119 {
    120   return TEST_WIDE_STRING_CONSTANT;
    121 }
    122 
    123 // 17 File 1 checks array of string constants defined in file 2.
    124 
    125 const char* t17data[T17_COUNT] =
    126 {
    127   "0", "1", "2", "3", "4"
    128 };
    129 
    130 // 18 File 1 checks string constants referenced directly in file 2.
    131 
    132 const char*
    133 f18(int i)
    134 {
    135   switch (i)
    136     {
    137     case 0:
    138       return "0";
    139     case 1:
    140       return "1";
    141     case 2:
    142       return "2";
    143     case 3:
    144       return "3";
    145     case 4:
    146       return "4";
    147     default:
    148       return 0;
    149     }
    150 }
    151