1 // leb_unittest.cc -- test read_signed_LEB_128 and read_unsigned_LEB_128 2 3 // Copyright (C) 2012-2016 Free Software Foundation, Inc. 4 // Written by Cary Coutant <ccoutant (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 #include "gold.h" 24 25 #include <sys/types.h> 26 27 #include "int_encoding.h" 28 29 #include "test.h" 30 31 namespace gold_testsuite 32 { 33 34 using namespace gold; 35 36 bool 37 Leb128_test(Test_report*) 38 { 39 size_t len; 40 41 // Unsigned tests. 42 static unsigned char u1[] = { 0 }; // 0 43 static unsigned char u2[] = { 1 }; // 1 44 static unsigned char u3[] = { 126 }; // 126 45 static unsigned char u4[] = { 127 }; // 127 46 static unsigned char u5[] = { 0x80+0, 1 }; // 128 47 static unsigned char u6[] = { 0x80+1, 1 }; // 129 48 static unsigned char u7[] = { 0x80+57, 100 }; // 12857 49 static unsigned char u8[] = { 0x80, 0x80, 0x80, 0x80, 50 0x80, 0x80, 0x80, 0x80, 51 0x80, 1}; // 1ULL << 63 52 53 // Signed tests. 54 static unsigned char s1[] = { 0 }; // 0 55 static unsigned char s2[] = { 1 }; // 1 56 static unsigned char s3[] = { 0x7e }; // -2 57 static unsigned char s4[] = { 0x80+127, 0 }; // 127 58 static unsigned char s5[] = { 0x80+1, 0x7f }; // -127 59 static unsigned char s6[] = { 0x80+0, 1 }; // 128 60 static unsigned char s7[] = { 0x80+0, 0x7f }; // -128 61 static unsigned char s8[] = { 0x80+1, 1 }; // 129 62 static unsigned char s9[] = { 0xff, 0x7e }; // -129 63 64 CHECK(read_unsigned_LEB_128(u1, &len) == 0 && len == sizeof(u1)); 65 CHECK(read_unsigned_LEB_128(u2, &len) == 1 && len == sizeof(u2)); 66 CHECK(read_unsigned_LEB_128(u3, &len) == 126 && len == sizeof(u3)); 67 CHECK(read_unsigned_LEB_128(u4, &len) == 127 && len == sizeof(u4)); 68 CHECK(read_unsigned_LEB_128(u5, &len) == 128 && len == sizeof(u5)); 69 CHECK(read_unsigned_LEB_128(u6, &len) == 129 && len == sizeof(u6)); 70 CHECK(read_unsigned_LEB_128(u7, &len) == 12857 && len == sizeof(u7)); 71 CHECK(read_unsigned_LEB_128(u8, &len) == (1ULL << 63) && len == sizeof(u8)); 72 73 CHECK(read_signed_LEB_128(s1, &len) == 0 && len == sizeof(s1)); 74 CHECK(read_signed_LEB_128(s2, &len) == 1 && len == sizeof(s2)); 75 CHECK(read_signed_LEB_128(s3, &len) == -2 && len == sizeof(s3)); 76 CHECK(read_signed_LEB_128(s4, &len) == 127 && len == sizeof(s4)); 77 CHECK(read_signed_LEB_128(s5, &len) == -127 && len == sizeof(s5)); 78 CHECK(read_signed_LEB_128(s6, &len) == 128 && len == sizeof(s6)); 79 CHECK(read_signed_LEB_128(s7, &len) == -128 && len == sizeof(s7)); 80 CHECK(read_signed_LEB_128(s8, &len) == 129 && len == sizeof(s8)); 81 CHECK(read_signed_LEB_128(s9, &len) == -129 && len == sizeof(s9)); 82 83 return true; 84 } 85 86 Register_test leb128_register("LEB128", Leb128_test); 87 88 } // End namespace gold_testsuite. 89
