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"
42 #define TRACE_VERBOSE 0
53 typedef std::map<size_t, std::string> namemap;
56 typedef std::map<unsigned, Call *> callmap;
59 unsigned next_call_no;
71 bool open(const char *filename) {
72 unsigned long long version;
74 file = gzopen(filename, "rb");
79 version = read_uint();
80 if (version != TRACE_VERSION) {
81 std::cerr << "error: unsupported format version" << version << "\n";
95 Call *parse_call(void) {
99 case Trace::EVENT_ENTER:
102 case Trace::EVENT_LEAVE:
103 return parse_leave();
104 case Trace::EVENT_MESSAGE:
105 std::cerr << "message: " << read_string() << "\n";
108 std::cerr << "error: unknown call detail " << c << "\n";
117 void parse_enter(void) {
118 Call *call = new Call;
119 call->no = next_call_no++;
120 call->name = read_name();
121 parse_call_details(call);
122 calls[call->no] = call;
125 Call *parse_leave(void) {
126 unsigned call_no = read_uint();
127 Call *call = calls[call_no];
132 parse_call_details(call);
136 void parse_call_details(Call *call) {
140 case Trace::CALL_END:
142 case Trace::CALL_ARG:
145 case Trace::CALL_RET:
146 call->ret = parse_value();
149 std::cerr << "error: unknown call detail " << c << "\n";
158 void parse_arg(Call *call) {
159 unsigned index = read_uint();
160 std::string name = read_name();
161 Value *value = parse_value();
162 if (index >= call->args.size()) {
163 call->args.resize(index + 1);
165 call->args[index] = Arg(name, value);
168 Value *parse_value(void) {
172 case Trace::TYPE_NULL:
174 case Trace::TYPE_FALSE:
175 return new Bool(false);
176 case Trace::TYPE_TRUE:
177 return new Bool(true);
178 case Trace::TYPE_SINT:
180 case Trace::TYPE_UINT:
182 case Trace::TYPE_FLOAT:
183 return parse_float();
184 case Trace::TYPE_DOUBLE:
185 return parse_double();
186 case Trace::TYPE_STRING:
187 return parse_string();
188 case Trace::TYPE_CONST:
189 return parse_const();
190 case Trace::TYPE_BITMASK:
191 return parse_bitmask();
192 case Trace::TYPE_ARRAY:
193 return parse_array();
194 case Trace::TYPE_STRUCT:
195 return parse_struct();
196 case Trace::TYPE_BLOB:
198 case Trace::TYPE_OPAQUE:
199 return parse_opaque();
201 std::cerr << "error: unknown type " << c << "\n";
207 Value *parse_sint() {
208 return new SInt(-(signed long long)read_uint());
211 Value *parse_uint() {
212 return new UInt(read_uint());
215 Value *parse_float() {
217 gzread(file, &value, sizeof value);
218 return new Float(value);
221 Value *parse_double() {
223 gzread(file, &value, sizeof value);
224 return new Float(value);
227 Value *parse_string() {
228 return new String(read_string());
231 Value *parse_const() {
232 std::string name = read_name();
233 Value *value = parse_value();
234 return new Const(name, value);
237 Value *parse_bitmask() {
238 unsigned long long value = 0;
243 case Trace::TYPE_SINT:
244 value |= -(signed long long)read_uint();
246 case Trace::TYPE_UINT:
247 value |= read_uint();
249 case Trace::TYPE_CONST:
252 case Trace::TYPE_NULL:
255 std::cerr << "error: uexpected type " << c << "\n";
261 return new UInt(value);
264 Value *parse_array(void) {
265 size_t len = read_uint();
266 Array *array = new Array(len);
267 for (size_t i = 0; i < len; ++i) {
268 array->values[i] = parse_value();
273 Value *parse_blob(void) {
274 size_t size = read_uint();
275 Blob *blob = new Blob(size);
277 gzread(file, blob->buf, size);
282 Value *parse_struct() {
283 size_t length = read_uint();
285 for (size_t i = 0; i < length; ++i) {
286 std::string name = read_name();
287 Value *value = parse_value();
288 std::cout << " " << name << " = " << value << "\n";
293 Value *parse_opaque() {
294 unsigned long long addr;
297 return new UInt(addr);
300 std::string read_name(void) {
302 size_t id = read_uint();
303 if (id >= names.size()) {
304 assert(id == names.size());
305 name = read_string();
312 std::cerr << "\tNAME " << id << " " << name << "\n";
317 std::string read_string(void) {
318 size_t len = read_uint();
320 return std::string();
322 char * buf = new char[len];
323 gzread(file, buf, len);
324 std::string value(buf, len);
327 std::cerr << "\tSTRING \"" << value << "\"\n";
332 unsigned long long read_uint(void) {
333 unsigned long long value = 0;
341 value |= (unsigned long long)(c & 0x7f) << shift;
345 std::cerr << "\tUINT " << value << "\n";
350 int read_byte(void) {
351 int c = gzgetc(file);
354 std::cerr << "\tEOF" << "\n";
356 std::cerr << "\tBYTE 0x" << std::hex << c << std::dec << "\n";
363 } /* namespace Trace */
365 #endif /* _TRACE_PARSER_HPP_ */