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// script_test_2.cc -- linker script test 2 for gold -*- C++ -*-
// Copyright (C) 2008-2016 Free Software Foundation, Inc.
// Written by Ian Lance Taylor <iant@google.com>.
// This file is part of gold.
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
// MA 02110-1301, USA.
// A test of some uses of the SECTIONS clause. Look at
// script_test_2.t to make sense of this test.
#include <cassert>
#include <cstddef>
#include <cstring>
#include <stdint.h>
extern char start_test_area[] __attribute__((__aligned__(1)));
extern char start_test_area_1[] __attribute__((__aligned__(1)));
extern char start_data[] __attribute__((__aligned__(1)));
extern char end_data[] __attribute__((__aligned__(1)));
extern char start_fill[] __attribute__((__aligned__(1)));
extern char end_fill[] __attribute__((__aligned__(1)));
extern char end_test_area[] __attribute__((__aligned__(1)));
extern char test_addr[] __attribute__((__aligned__(1)));
extern char test_addr_alias[] __attribute__((__aligned__(1)));
int
main(int, char**)
{
assert(reinterpret_cast<uintptr_t>(start_test_area) == 0x20000001);
assert(reinterpret_cast<uintptr_t>(start_test_area_1) == 0x20000010);
// We should see the string from script_test_2b.o next. The
// subalign should move it up to 0x20000020.
for (int i = 0; i < 16; ++i)
assert(start_test_area_1[i] == 0);
assert(strcmp(start_test_area_1 + 16, "test bb") == 0);
// Next the string from script_test_2a.o, after the subalign.
for (int i = 16 + 7; i < 48; ++i)
assert(start_test_area_1[i] == 0);
assert(strcmp(start_test_area_1 + 48, "test aa") == 0);
// Move four bytes forward to start_data.
assert(reinterpret_cast<uintptr_t>(start_test_area_1 + 48 + 8 + 4)
== reinterpret_cast<uintptr_t>(start_data));
assert(memcmp(start_data, "\1\2\0\4\0\0\0\010\0\0\0\0\0\0\0", 15) == 0
|| memcmp(start_data, "\1\0\2\0\0\0\4\0\0\0\0\0\0\0\010", 15) == 0);
assert(end_data == start_data + 15);
// Check that FILL works as expected.
assert(start_fill == end_data);
assert(memcmp(start_fill, "\x12\x34\x56\x78\x12\x34\x56\0", 8) == 0);
assert(end_fill == start_fill + 8);
assert(end_test_area == end_fill);
assert(test_addr == start_test_area_1);
assert(test_addr_alias == test_addr);
}
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