2012-03-26 19:18:29 +00:00
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// basic_test.cc -- a test case for gold
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2017-04-10 11:32:00 +00:00
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// Copyright (C) 2006-2017 Free Software Foundation, Inc.
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2012-03-26 19:18:29 +00:00
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// Written by Ian Lance Taylor <iant@google.com>.
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// This file is part of gold.
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// This program is free software; you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation; either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program; if not, write to the Free Software
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// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
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// MA 02110-1301, USA.
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// The goal of this program is to produce as many different types of
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// relocations as we can in a stand-alone program that does not use
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// TLS. This program is compiled without optimization.
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// 1 Code reference to global data.
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// 2 Code reference to static data.
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// 3 Code reference to BSS data.
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// 4 Code reference to offset within global data.
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// 5 Code reference to offset within static data.
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// 6 Code reference to offset within BSS data.
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// 7 Switch statement with a table of destinations.
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// 8 Taking the address of a label (a gcc extension).
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// 9 Taking the address of a nested function (a gcc extension).
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// 10 Data reference to global data.
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// 11 Data reference to static data.
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// 12 Data reference to BSS data.
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// 13 Data reference to offset within global data.
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// 14 Data reference to offset within static data.
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// 15 Data reference to offset within BSS data.
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// 16 Virtual table.
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// 17 Inline function.
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// 18 Call through pointer to method.
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// 19 Initialize variable to pointer to method.
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// 20 Global constructor and destructor.
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// 1 Code reference to global data.
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int t1 = 11;
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// 2 Code reference to static data.
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static int t2 = 22;
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// 3 Code reference to BSS data (initialized after program starts, to
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// 33).
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int t3;
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// 4 Code reference to offset within global data.
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char t4[] = "Hello, world";
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// 5 Code reference to offset within static data.
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static char t5[] = "Hello, world";
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// 6 Code reference to offset within BSS data (initialized after
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// program starts, to contents of t4).
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char t6[13];
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// Test cases 1 through 6.
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bool
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t1_6()
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{
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return (t1 == 11
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&& t2 == 22
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&& t3 == 33
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&& t4[5] == ','
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&& t5[7] == 'w'
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&& t6[9] == 'r');
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}
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// 7 Switch statement with a table of destinations.
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int
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t7(int i)
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{
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switch (i)
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{
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case 0:
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return 12;
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case 1:
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return 34;
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case 2:
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return 56;
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case 3:
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return 78;
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case 4:
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return 90;
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case 5:
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return 13;
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case 6:
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return 0;
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case 7:
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return 57;
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case 8:
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return 79;
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case 9:
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return 81;
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default:
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return 144;
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}
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}
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// 8 Taking the address of a label (a gcc extension).
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int
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t8(int i)
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{
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for (int j = 0; j < 10; ++j)
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{
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void* p;
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if (i + j > 6)
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p = &&lab1;
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else
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p = &&lab2;
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if (j == 7)
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goto *p;
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}
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return 15;
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lab1:
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return 0;
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lab2:
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return 12;
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}
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// 9 Taking the address of a nested function (a gcc extension).
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// Disabled because this is only supported in C, not C++.
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int
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t9a(int (*pfn)(int))
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{
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return (*pfn)(10) - 10;
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}
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int
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t9(int i)
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{
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#if 0
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int
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t9c(int j)
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{
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return i + j;
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}
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return t9a(&t9c);
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#else
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return i;
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#endif
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}
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// 10 Data reference to global data.
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int* t10 = &t1;
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// 11 Data reference to static data.
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int* t11 = &t2;
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// 12 Data reference to BSS data.
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int* t12 = &t3;
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// 13 Data reference to offset within global data.
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char* t13 = &t4[6];
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// 14 Data reference to offset within static data.
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char* t14 = &t5[8];
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// 15 Data reference to offset within BSS data.
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char* t15 = &t6[10];
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// Test cases 10 through 15.
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bool
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t10_15()
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{
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return (*t10 == 11
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&& *t11 == 22
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&& *t12 == 33
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&& *t13 == ' '
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&& *t14 == 'o'
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&& *t15 == 'l');
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}
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// 16 Virtual table.
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class t16a
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{
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public:
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virtual
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~t16a()
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{ }
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virtual int
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t()
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{ return 83; }
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};
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class t16b : public t16a
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{
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public:
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virtual int
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t()
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{ return 92; }
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};
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t16b t16v;
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bool
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t16()
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{
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return t16v.t() == 92;
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}
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// 17 Inline function.
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inline int
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t17a()
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{
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return 74;
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}
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bool
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t17()
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{
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return t17a() == 74;
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}
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// 18 Call through pointer to method.
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class t18a
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{
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public:
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int
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ta()
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{ return 65; }
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int
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tb()
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{ return 90; }
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};
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t18a t18v;
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int
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t18f(int (t18a::* p)())
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{
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return (t18v.*p)();
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}
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bool
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t18()
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{
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return t18f(&t18a::ta) == 65;
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}
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// 19 Initialize variable to pointer to method.
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int (t18a::* t19v)() = &t18a::tb;
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bool
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t19()
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{
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return (t18v.*t19v)() == 90;
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}
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// 20 Global constructor and destructor.
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class t20a
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{
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public:
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t20a()
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: i(96)
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{ }
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~t20a()
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{ }
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int
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get() const
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{ return this->i; }
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private:
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int i;
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};
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t20a t20v;
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bool
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t20()
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{
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return t20v.get() == 96;
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}
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// Main function. Initialize variables and call test functions.
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int
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main()
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{
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t3 = 33;
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for (int i = 0; i < 13; ++i)
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t6[i] = t4[i];
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if (t1_6()
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&& t7(6) == 0
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&& t8(0) == 0
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&& t9(5) == 5
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&& t10_15()
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&& t16()
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&& t17()
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&& t18()
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&& t19()
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&& t20())
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return 0;
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else
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return 1;
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}
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