// script_test_2.cc -- linker script test 2 for gold -*- C++ -*- // Copyright (C) 2008-2019 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) == 0x20000020); assert(strcmp(start_test_area_1, "test bb") == 0); // Next the string from script_test_2a.o, after the subalign. for (int i = 7; i < 32; ++i) assert(start_test_area_1[i] == 0); assert(strcmp(start_test_area_1 + 32, "test aa") == 0); // Skip to start_data at relative offset 60. for (int i = 32 + 7; i < 60; ++i) assert(start_test_area_1[i] == 0); assert(reinterpret_cast<uintptr_t>(start_test_area_1 + 60) == 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); }