1 /**************************************************************************
3 * Copyright 2010 VMware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a copy
7 * of this software and associated documentation files (the "Software"), to deal
8 * in the Software without restriction, including without limitation the rights
9 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10 * copies of the Software, and to permit persons to whom the Software is
11 * furnished to do so, subject to the following conditions:
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
24 **************************************************************************/
26 #ifndef _TRACE_PARSER_HPP_
27 #define _TRACE_PARSER_HPP_
38 #include "trace_format.hpp"
39 #include "trace_model.hpp"
50 typedef std::map<size_t, std::string> namemap;
62 bool open(const char *filename) {
63 unsigned long long version;
65 file = gzopen(filename, "rb");
70 version = read_uint();
71 if (version != TRACE_VERSION) {
72 std::cerr << "error: unsupported format version" << version << "\n";
86 Call *parse_call(void) {
87 Call *call = new Call;
88 call->name = read_name();
98 call->ret = parse_value();
101 std::cerr << "error: unknown call detail " << c << "\n";
111 void parse_arg(Call *call) {
112 unsigned index = read_uint();
113 std::string name = read_name();
114 Value *value = parse_value();
115 if (index >= call->args.size()) {
116 call->args.resize(index + 1);
118 call->args[index] = Arg(name, value);
121 Value *parse_value(void) {
125 case Trace::TYPE_NULL:
127 case Trace::TYPE_FALSE:
128 return new Bool(false);
129 case Trace::TYPE_TRUE:
130 return new Bool(true);
131 case Trace::TYPE_SINT:
133 case Trace::TYPE_UINT:
135 case Trace::TYPE_FLOAT:
136 return parse_float();
137 case Trace::TYPE_DOUBLE:
138 return parse_double();
139 case Trace::TYPE_STRING:
140 return parse_string();
141 case Trace::TYPE_CONST:
142 return parse_const();
143 case Trace::TYPE_BITMASK:
144 return parse_bitmask();
145 case Trace::TYPE_ARRAY:
146 return parse_array();
147 case Trace::TYPE_STRUCT:
148 return parse_struct();
149 case Trace::TYPE_BLOB:
151 case Trace::TYPE_OPAQUE:
152 return parse_opaque();
154 std::cerr << "error: unknown type " << c << "\n";
160 Value *parse_sint() {
161 return new SInt(-read_uint());
164 Value *parse_uint() {
165 return new UInt(read_uint());
168 Value *parse_float() {
170 gzread(file, &value, sizeof value);
171 return new Float(value);
174 Value *parse_double() {
176 gzread(file, &value, sizeof value);
177 return new Float(value);
180 Value *parse_string() {
181 return new String(read_string());
184 Value *parse_const() {
185 std::string name = read_name();
186 Value *value = parse_value();
187 return new Const(name, value);
190 Value *parse_bitmask() {
191 unsigned long long value = 0;
196 case Trace::TYPE_SINT:
197 value |= -read_uint();
199 case Trace::TYPE_UINT:
200 value |= read_uint();
202 case Trace::TYPE_CONST:
205 case Trace::TYPE_NULL:
208 std::cerr << "error: uexpected type " << c << "\n";
214 return new UInt(value);
217 Value *parse_array(void) {
218 size_t len = read_uint();
219 Array *array = new Array(len);
220 for (size_t i = 0; i < len; ++i) {
221 array->values[i] = parse_value();
226 Value *parse_blob(void) {
227 size_t size = read_uint();
228 Blob *blob = new Blob(size);
230 gzread(file, blob->buf, size);
235 Value *parse_struct() {
236 size_t length = read_uint();
238 for (size_t i; i < length; ++i) {
239 std::string name = read_name();
240 Value *value = parse_value();
241 std::cout << " " << name << " = " << value << "\n";
246 Value *parse_opaque() {
247 unsigned long long addr;
250 return new UInt(addr);
253 std::string read_name(void) {
255 size_t id = read_uint();
256 if (id >= names.size()) {
257 name = read_string();
265 std::string read_string(void) {
266 size_t len = read_uint();
268 return std::string();
270 char * buf = new char[len];
271 gzread(file, buf, len);
272 std::string value(buf, len);
275 std::cerr << '"' << value << '"' << "\n";
280 unsigned long long read_uint(void) {
281 unsigned long long value = 0;
289 value |= (unsigned long long)(c & 0x7f) << shift;
293 std::cerr << value << "\n";
298 int read_byte(void) {
299 int c = gzgetc(file);
302 std::cerr << "EOF" << "\n";
304 std::cerr << "0x" << std::hex << c << "\n";
311 } /* namespace Trace */
313 #endif /* _TRACE_PARSER_HPP_ */