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89 lines
3.3 KiB
C++
89 lines
3.3 KiB
C++
// leb_unittest.cc -- test read_signed_LEB_128 and read_unsigned_LEB_128
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// Copyright (C) 2012-2020 Free Software Foundation, Inc.
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// Written by Cary Coutant <ccoutant@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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#include "gold.h"
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#include <sys/types.h>
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#include "int_encoding.h"
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#include "test.h"
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namespace gold_testsuite
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{
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using namespace gold;
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bool
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Leb128_test(Test_report*)
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{
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size_t len;
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// Unsigned tests.
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static unsigned char u1[] = { 0 }; // 0
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static unsigned char u2[] = { 1 }; // 1
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static unsigned char u3[] = { 126 }; // 126
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static unsigned char u4[] = { 127 }; // 127
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static unsigned char u5[] = { 0x80+0, 1 }; // 128
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static unsigned char u6[] = { 0x80+1, 1 }; // 129
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static unsigned char u7[] = { 0x80+57, 100 }; // 12857
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static unsigned char u8[] = { 0x80, 0x80, 0x80, 0x80,
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0x80, 0x80, 0x80, 0x80,
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0x80, 1}; // 1ULL << 63
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// Signed tests.
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static unsigned char s1[] = { 0 }; // 0
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static unsigned char s2[] = { 1 }; // 1
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static unsigned char s3[] = { 0x7e }; // -2
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static unsigned char s4[] = { 0x80+127, 0 }; // 127
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static unsigned char s5[] = { 0x80+1, 0x7f }; // -127
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static unsigned char s6[] = { 0x80+0, 1 }; // 128
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static unsigned char s7[] = { 0x80+0, 0x7f }; // -128
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static unsigned char s8[] = { 0x80+1, 1 }; // 129
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static unsigned char s9[] = { 0xff, 0x7e }; // -129
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CHECK(read_unsigned_LEB_128(u1, &len) == 0 && len == sizeof(u1));
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CHECK(read_unsigned_LEB_128(u2, &len) == 1 && len == sizeof(u2));
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CHECK(read_unsigned_LEB_128(u3, &len) == 126 && len == sizeof(u3));
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CHECK(read_unsigned_LEB_128(u4, &len) == 127 && len == sizeof(u4));
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CHECK(read_unsigned_LEB_128(u5, &len) == 128 && len == sizeof(u5));
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CHECK(read_unsigned_LEB_128(u6, &len) == 129 && len == sizeof(u6));
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CHECK(read_unsigned_LEB_128(u7, &len) == 12857 && len == sizeof(u7));
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CHECK(read_unsigned_LEB_128(u8, &len) == (1ULL << 63) && len == sizeof(u8));
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CHECK(read_signed_LEB_128(s1, &len) == 0 && len == sizeof(s1));
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CHECK(read_signed_LEB_128(s2, &len) == 1 && len == sizeof(s2));
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CHECK(read_signed_LEB_128(s3, &len) == -2 && len == sizeof(s3));
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CHECK(read_signed_LEB_128(s4, &len) == 127 && len == sizeof(s4));
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CHECK(read_signed_LEB_128(s5, &len) == -127 && len == sizeof(s5));
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CHECK(read_signed_LEB_128(s6, &len) == 128 && len == sizeof(s6));
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CHECK(read_signed_LEB_128(s7, &len) == -128 && len == sizeof(s7));
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CHECK(read_signed_LEB_128(s8, &len) == 129 && len == sizeof(s8));
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CHECK(read_signed_LEB_128(s9, &len) == -129 && len == sizeof(s9));
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return true;
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}
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Register_test leb128_register("LEB128", Leb128_test);
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} // End namespace gold_testsuite.
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