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 typedef std::map<size_t, Bitmask::Signature *> BitmaskMap;
62 unsigned next_call_no;
74 bool open(const char *filename) {
75 unsigned long long version;
77 file = gzopen(filename, "rb");
82 version = read_uint();
83 if (version != TRACE_VERSION) {
84 std::cerr << "error: unsupported format version" << version << "\n";
98 Call *parse_call(void) {
102 case Trace::EVENT_ENTER:
105 case Trace::EVENT_LEAVE:
106 return parse_leave();
107 case Trace::EVENT_MESSAGE:
108 std::cerr << "message: " << read_string() << "\n";
111 std::cerr << "error: unknown call detail " << c << "\n";
120 void parse_enter(void) {
121 Call *call = new Call;
122 call->no = next_call_no++;
123 call->name = read_name();
124 parse_call_details(call);
125 calls[call->no] = call;
128 Call *parse_leave(void) {
129 unsigned call_no = read_uint();
130 Call *call = calls[call_no];
135 parse_call_details(call);
139 void parse_call_details(Call *call) {
143 case Trace::CALL_END:
145 case Trace::CALL_ARG:
148 case Trace::CALL_RET:
149 call->ret = parse_value();
152 std::cerr << "error: unknown call detail " << c << "\n";
161 void parse_arg(Call *call) {
162 unsigned index = read_uint();
163 std::string name = read_name();
164 Value *value = parse_value();
165 if (index >= call->args.size()) {
166 call->args.resize(index + 1);
168 call->args[index] = Arg(name, value);
171 Value *parse_value(void) {
175 case Trace::TYPE_NULL:
177 case Trace::TYPE_FALSE:
178 return new Bool(false);
179 case Trace::TYPE_TRUE:
180 return new Bool(true);
181 case Trace::TYPE_SINT:
183 case Trace::TYPE_UINT:
185 case Trace::TYPE_FLOAT:
186 return parse_float();
187 case Trace::TYPE_DOUBLE:
188 return parse_double();
189 case Trace::TYPE_STRING:
190 return parse_string();
191 case Trace::TYPE_CONST:
192 return parse_const();
193 case Trace::TYPE_BITMASK:
194 return parse_bitmask();
195 case Trace::TYPE_ARRAY:
196 return parse_array();
197 case Trace::TYPE_STRUCT:
198 return parse_struct();
199 case Trace::TYPE_BLOB:
201 case Trace::TYPE_OPAQUE:
202 return parse_opaque();
204 std::cerr << "error: unknown type " << c << "\n";
210 Value *parse_sint() {
211 return new SInt(-(signed long long)read_uint());
214 Value *parse_uint() {
215 return new UInt(read_uint());
218 Value *parse_float() {
220 gzread(file, &value, sizeof value);
221 return new Float(value);
224 Value *parse_double() {
226 gzread(file, &value, sizeof value);
227 return new Float(value);
230 Value *parse_string() {
231 return new String(read_string());
234 Value *parse_const() {
235 std::string name = read_name();
236 Value *value = parse_value();
237 return new Const(name, value);
240 Value *parse_bitmask() {
241 size_t id = read_uint();
242 Bitmask::Signature *sig;
243 BitmaskMap::const_iterator it = bitmasks.find(id);
244 if (it == bitmasks.end()) {
245 size_t size = read_uint();
246 sig = new Bitmask::Signature(size);
247 for (Bitmask::Signature::iterator it = sig->begin(); it != sig->end(); ++it) {
248 it->first = read_string();
249 it->second = read_uint();
258 unsigned long long value = read_uint();
260 return new Bitmask(sig, value);
263 Value *parse_array(void) {
264 size_t len = read_uint();
265 Array *array = new Array(len);
266 for (size_t i = 0; i < len; ++i) {
267 array->values[i] = parse_value();
272 Value *parse_blob(void) {
273 size_t size = read_uint();
274 Blob *blob = new Blob(size);
276 gzread(file, blob->buf, size);
281 Value *parse_struct() {
282 size_t length = read_uint();
284 for (size_t i = 0; i < length; ++i) {
285 std::string name = read_name();
286 Value *value = parse_value();
287 std::cout << " " << name << " = " << value << "\n";
292 Value *parse_opaque() {
293 unsigned long long addr;
296 return new UInt(addr);
299 std::string read_name(void) {
301 size_t id = read_uint();
302 if (id >= names.size()) {
303 assert(id == names.size());
304 name = read_string();
311 std::cerr << "\tNAME " << id << " " << name << "\n";
316 std::string read_string(void) {
317 size_t len = read_uint();
319 return std::string();
321 char * buf = new char[len];
322 gzread(file, buf, len);
323 std::string value(buf, len);
326 std::cerr << "\tSTRING \"" << value << "\"\n";
331 unsigned long long read_uint(void) {
332 unsigned long long value = 0;
340 value |= (unsigned long long)(c & 0x7f) << shift;
344 std::cerr << "\tUINT " << value << "\n";
349 int read_byte(void) {
350 int c = gzgetc(file);
353 std::cerr << "\tEOF" << "\n";
355 std::cerr << "\tBYTE 0x" << std::hex << c << std::dec << "\n";
362 } /* namespace Trace */
364 #endif /* _TRACE_PARSER_HPP_ */