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1 | /* This file is part of the Linux Trace Toolkit viewer |
2 | * Copyright (C) 2003-2004 Michel Dagenais |
3 | * 2005 Mathieu Desnoyers |
4 | * |
5 | * This program is free software; you can redistribute it and/or modify |
6 | * it under the terms of the GNU General Public License Version 2 as |
7 | * published by the Free Software Foundation; |
8 | * |
9 | * This program is distributed in the hope that it will be useful, |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
12 | * GNU General Public License for more details. |
13 | * |
14 | * You should have received a copy of the GNU General Public License |
15 | * along with this program; if not, write to the Free Software |
16 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
17 | * MA 02111-1307, USA. |
18 | */ |
19 | |
20 | /* The text dump facility needs to print headers before the trace set and |
21 | before each trace, to print each event, and to print statistics |
22 | after each trace. */ |
23 | |
24 | #ifdef HAVE_CONFIG_H |
25 | #include <config.h> |
26 | #endif |
27 | |
28 | #include <lttv/lttv.h> |
29 | #include <lttv/option.h> |
30 | #include <lttv/module.h> |
31 | #include <lttv/hook.h> |
32 | #include <lttv/attribute.h> |
33 | #include <lttv/iattribute.h> |
34 | #include <lttv/stats.h> |
35 | #include <lttv/filter.h> |
36 | #include <lttv/print.h> |
37 | #include <ltt/ltt.h> |
38 | #include <ltt/event.h> |
39 | #include <ltt/type.h> |
40 | #include <ltt/trace.h> |
41 | #include <ltt/facility.h> |
42 | #include <stdio.h> |
43 | |
44 | static gboolean |
45 | a_field_names, |
46 | a_state, |
47 | a_cpu_stats, |
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48 | a_process_stats, |
49 | a_raw; |
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50 | |
51 | static char |
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52 | *a_file_name = NULL, |
53 | *a_quark_file_name = NULL; |
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54 | |
55 | static LttvHooks |
56 | *before_traceset, |
57 | *after_traceset, |
58 | *before_trace, |
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59 | *after_trace, |
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60 | *event_hook; |
61 | |
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62 | static guint a_event_count = 0; |
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63 | |
64 | /* Insert the hooks before and after each trace and tracefile, and for each |
65 | event. Print a global header. */ |
66 | |
67 | static FILE *a_file; |
68 | |
69 | static GString *a_string; |
70 | |
71 | static gboolean write_traceset_header(void *hook_data, void *call_data) |
72 | { |
73 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
74 | |
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75 | if(a_file_name == NULL) a_file = stdout; |
76 | else a_file = fopen(a_file_name, "w"); |
77 | |
78 | if(a_file == NULL) g_error("cannot open file %s", a_file_name); |
79 | |
80 | /* Print the trace set header */ |
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81 | if(a_raw) { |
82 | /* TODO : Write a header that will check for ILP size and endianness */ |
83 | fputc(HDR_TRACESET, a_file); |
84 | } else { |
85 | fprintf(a_file,"<TRACESET NUM_TRACES=%d/>\n", |
86 | lttv_traceset_number(tc->ts)); |
87 | } |
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88 | |
89 | return FALSE; |
90 | } |
91 | |
92 | |
93 | static gboolean write_traceset_footer(void *hook_data, void *call_data) |
94 | { |
95 | LttvTracesetContext *tc = (LttvTracesetContext *)call_data; |
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96 | GQuark q; |
97 | gchar *string; |
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98 | |
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99 | if(a_raw) { |
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100 | |
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101 | } else { |
102 | fprintf(a_file,"</TRACESET>\n"); |
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103 | } |
104 | |
105 | if(a_file_name != NULL) fclose(a_file); |
106 | |
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107 | if(a_raw) { |
108 | if(a_quark_file_name == NULL) { |
109 | if(a_file_name == NULL) a_file = stdout; |
110 | else a_file = fopen(a_file_name, "a"); |
111 | } else { |
112 | if(a_quark_file_name == NULL) a_file = stdout; |
113 | else a_file = fopen(a_quark_file_name, "w"); |
114 | } |
115 | |
116 | if(a_file == NULL) g_error("cannot open file %s", a_quark_file_name); |
117 | |
118 | fputc(HDR_QUARKS, a_file); |
119 | q = 1; |
120 | do { |
121 | string = g_quark_to_string(q); |
122 | if(string == NULL) break; |
123 | fputc(HDR_QUARK, a_file); |
124 | // increment. fwrite(&q, sizeof(GQuark), 1, a_file); |
125 | fwrite(string, sizeof(char), strlen(string)+1, a_file); |
126 | q++; |
127 | } while(1); |
128 | |
129 | if(a_quark_file_name != NULL || a_file_name != NULL) fclose(a_file); |
130 | |
131 | } |
132 | |
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133 | return FALSE; |
134 | } |
135 | |
136 | |
137 | static gboolean write_trace_header(void *hook_data, void *call_data) |
138 | { |
139 | LttvTraceContext *tc = (LttvTraceContext *)call_data; |
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140 | |
141 | if(a_raw) { |
142 | fputc(HDR_TRACE, a_file); |
143 | } else { |
144 | fprintf(a_file,"<TRACE TRACE_NUMBER=%d/>\n", |
145 | tc->index); |
146 | } |
147 | |
148 | return FALSE; |
149 | } |
150 | |
151 | static gboolean write_trace_footer(void *hook_data, void *call_data) |
152 | { |
153 | LttvTraceContext *tc = (LttvTraceContext *)call_data; |
154 | |
155 | if(a_raw) { |
156 | |
157 | } else { |
158 | fprintf(a_file,"</TRACE>\n"); |
159 | } |
160 | |
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161 | return FALSE; |
162 | } |
163 | |
164 | |
165 | static int for_each_event(void *hook_data, void *call_data) |
166 | { |
167 | guint *event_count = (guint*)hook_data; |
168 | |
169 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
170 | |
171 | LttvTracefileContext *tfc = (LttvTracefileContext *)call_data; |
172 | |
173 | LttvTracefileState *tfs = (LttvTracefileState *)call_data; |
174 | |
175 | LttEvent *e; |
176 | |
177 | LttvAttributeValue value_filter; |
178 | |
179 | /* Only save at LTTV_STATE_SAVE_INTERVAL */ |
180 | if(likely((*event_count)++ < LTTV_STATE_SAVE_INTERVAL)) |
181 | return FALSE; |
182 | else |
183 | *event_count = 0; |
184 | |
185 | guint cpu = tfs->cpu; |
186 | LttvTraceState *ts = (LttvTraceState*)tfc->t_context; |
187 | LttvProcessState *process = ts->running_process[cpu]; |
188 | |
189 | e = ltt_tracefile_get_event(tfc->tf); |
190 | |
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191 | if(a_raw) { |
192 | lttv_state_write_raw(ts, tfs->parent.timestamp, a_file); |
193 | } else { |
194 | lttv_state_write(ts, tfs->parent.timestamp, a_file); |
195 | } |
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196 | |
197 | return FALSE; |
198 | } |
199 | |
200 | |
201 | static void init() |
202 | { |
203 | LttvAttributeValue value; |
204 | |
205 | LttvIAttribute *attributes = LTTV_IATTRIBUTE(lttv_global_attributes()); |
206 | |
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207 | g_info("Init precomputeState.c"); |
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208 | |
209 | a_string = g_string_new(""); |
210 | |
211 | a_file_name = NULL; |
212 | lttv_option_add("output", 'o', |
213 | "output file where the saved states are to be written", |
214 | "file name", |
215 | LTTV_OPT_STRING, &a_file_name, NULL, NULL); |
216 | |
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217 | a_quark_file_name = NULL; |
218 | lttv_option_add("qoutput", 'q', |
219 | "output file where the quarks (tuples integer, string) are to be written", |
220 | "file name", |
221 | LTTV_OPT_STRING, &a_quark_file_name, NULL, NULL); |
222 | |
223 | lttv_option_add("raw", 'r', |
224 | "Output in raw binary", |
225 | "Raw binary", |
226 | LTTV_OPT_NONE, &a_raw, NULL, NULL); |
227 | |
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228 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/event", |
229 | LTTV_POINTER, &value)); |
230 | g_assert((event_hook = *(value.v_pointer)) != NULL); |
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231 | lttv_hooks_add(event_hook, for_each_event, &a_event_count, LTTV_PRIO_DEFAULT); |
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232 | |
233 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/before", |
234 | LTTV_POINTER, &value)); |
235 | g_assert((before_trace = *(value.v_pointer)) != NULL); |
236 | lttv_hooks_add(before_trace, write_trace_header, NULL, LTTV_PRIO_DEFAULT); |
237 | |
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238 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/trace/after", |
239 | LTTV_POINTER, &value)); |
240 | g_assert((after_trace = *(value.v_pointer)) != NULL); |
241 | lttv_hooks_add(after_trace, write_trace_footer, NULL, LTTV_PRIO_DEFAULT); |
242 | |
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243 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/before", |
244 | LTTV_POINTER, &value)); |
245 | g_assert((before_traceset = *(value.v_pointer)) != NULL); |
246 | lttv_hooks_add(before_traceset, write_traceset_header, NULL, |
247 | LTTV_PRIO_DEFAULT); |
248 | |
249 | g_assert(lttv_iattribute_find_by_path(attributes, "hooks/traceset/after", |
250 | LTTV_POINTER, &value)); |
251 | g_assert((after_traceset = *(value.v_pointer)) != NULL); |
252 | lttv_hooks_add(after_traceset, write_traceset_footer, NULL, |
253 | LTTV_PRIO_DEFAULT); |
254 | } |
255 | |
256 | static void destroy() |
257 | { |
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258 | g_info("Destroy precomputeState"); |
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259 | |
260 | lttv_option_remove("output"); |
261 | |
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262 | lttv_option_remove("qoutput"); |
263 | |
264 | lttv_option_remove("raw"); |
265 | |
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266 | g_string_free(a_string, TRUE); |
267 | |
268 | lttv_hooks_remove_data(event_hook, for_each_event, NULL); |
269 | |
270 | lttv_hooks_remove_data(before_trace, write_trace_header, NULL); |
271 | |
272 | lttv_hooks_remove_data(before_trace, write_traceset_header, NULL); |
273 | |
274 | lttv_hooks_remove_data(before_trace, write_traceset_footer, NULL); |
275 | } |
276 | |
277 | |
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278 | LTTV_MODULE("precomputeState", "Precompute states", \ |
279 | "Precompute states in a trace, XML output.", \ |
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280 | init, destroy, "stats", "batchAnalysis", "option", "print") |
281 | |