1 // Copyright (c) 2019 Google Inc.
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 //
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14
15 #include <cstdint>
16 #include <cstring> // memcpy
17 #include <vector>
18
19 #include "source/spirv_target_env.h"
20 #include "spirv-tools/libspirv.hpp"
21
LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)22 extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
23 if (size < sizeof(spv_target_env) + 1) return 0;
24
25 const spv_context context =
26 spvContextCreate(*reinterpret_cast<const spv_target_env*>(data));
27 if (context == nullptr) return 0;
28
29 data += sizeof(spv_target_env);
30 size -= sizeof(spv_target_env);
31
32 std::vector<uint32_t> input;
33
34 std::vector<char> input_str;
35 size_t char_count = input.size() * sizeof(uint32_t) / sizeof(char);
36 input_str.resize(char_count);
37 memcpy(input_str.data(), input.data(), input.size() * sizeof(uint32_t));
38
39 spv_binary binary = nullptr;
40 spv_diagnostic diagnostic = nullptr;
41 spvTextToBinaryWithOptions(context, input_str.data(), input_str.size(),
42 SPV_TEXT_TO_BINARY_OPTION_NONE, &binary,
43 &diagnostic);
44 if (diagnostic) {
45 spvDiagnosticPrint(diagnostic);
46 spvDiagnosticDestroy(diagnostic);
47 diagnostic = nullptr;
48 }
49
50 if (binary) {
51 spvBinaryDestroy(binary);
52 binary = nullptr;
53 }
54
55 spvTextToBinaryWithOptions(context, input_str.data(), input_str.size(),
56 SPV_TEXT_TO_BINARY_OPTION_PRESERVE_NUMERIC_IDS,
57 &binary, &diagnostic);
58 if (diagnostic) {
59 spvDiagnosticPrint(diagnostic);
60 spvDiagnosticDestroy(diagnostic);
61 diagnostic = nullptr;
62 }
63
64 if (binary) {
65 spvBinaryDestroy(binary);
66 binary = nullptr;
67 }
68
69 spvContextDestroy(context);
70
71 return 0;
72 }
73