output.c revision cc947516b7a76aa21095d8c3563a19a399bf628c 
1#include "config.h"
2
3#include <stdio.h>
4#include <stdlib.h>
5#include <stdarg.h>
6#include <string.h>
7#include <time.h>
8#include <sys/time.h>
9#include <unistd.h>
10
11#include "common.h"
12
13/* TODO FIXME XXX: include in common.h: */
14extern struct timeval current_time_spent;
15
16Dict *dict_opt_c = NULL;
17
18static Process *current_proc = 0;
19static int current_depth = 0;
20static int current_column = 0;
21
22static void
23output_indent(Process *proc) {
24	current_column +=
25	    fprintf(options.output, "%*s", options.indent * proc->callstack_depth, "");
26}
27
28static void
29begin_of_line(enum tof type, Process *proc) {
30	current_column = 0;
31	if (!proc) {
32		return;
33	}
34	if ((options.output != stderr) && (opt_p || options.follow)) {
35		current_column += fprintf(options.output, "%u ", proc->pid);
36	} else if (options.follow) {
37		current_column += fprintf(options.output, "[pid %u] ", proc->pid);
38	}
39	if (opt_r) {
40		struct timeval tv;
41		struct timezone tz;
42		static struct timeval old_tv = { 0, 0 };
43		struct timeval diff;
44
45		gettimeofday(&tv, &tz);
46
47		if (old_tv.tv_sec == 0 && old_tv.tv_usec == 0) {
48			old_tv.tv_sec = tv.tv_sec;
49			old_tv.tv_usec = tv.tv_usec;
50		}
51		diff.tv_sec = tv.tv_sec - old_tv.tv_sec;
52		if (tv.tv_usec >= old_tv.tv_usec) {
53			diff.tv_usec = tv.tv_usec - old_tv.tv_usec;
54		} else {
55			diff.tv_sec--;
56			diff.tv_usec = 1000000 + tv.tv_usec - old_tv.tv_usec;
57		}
58		old_tv.tv_sec = tv.tv_sec;
59		old_tv.tv_usec = tv.tv_usec;
60		current_column += fprintf(options.output, "%3lu.%06d ",
61					  diff.tv_sec, (int)diff.tv_usec);
62	}
63	if (opt_t) {
64		struct timeval tv;
65		struct timezone tz;
66
67		gettimeofday(&tv, &tz);
68		if (opt_t > 2) {
69			current_column += fprintf(options.output, "%lu.%06d ",
70						  tv.tv_sec, (int)tv.tv_usec);
71		} else if (opt_t > 1) {
72			struct tm *tmp = localtime(&tv.tv_sec);
73			current_column +=
74			    fprintf(options.output, "%02d:%02d:%02d.%06d ",
75				    tmp->tm_hour, tmp->tm_min, tmp->tm_sec,
76				    (int)tv.tv_usec);
77		} else {
78			struct tm *tmp = localtime(&tv.tv_sec);
79			current_column += fprintf(options.output, "%02d:%02d:%02d ",
80						  tmp->tm_hour, tmp->tm_min,
81						  tmp->tm_sec);
82		}
83	}
84	if (opt_i) {
85		if (type == LT_TOF_FUNCTION || type == LT_TOF_FUNCTIONR) {
86			current_column += fprintf(options.output, "[%p] ",
87						  proc->return_addr);
88		} else {
89			current_column += fprintf(options.output, "[%p] ",
90						  proc->instruction_pointer);
91		}
92	}
93	if (options.indent > 0 && type != LT_TOF_NONE) {
94		output_indent(proc);
95	}
96}
97
98static Function *
99name2func(char const *name) {
100	Function *tmp;
101	const char *str1, *str2;
102
103	tmp = list_of_functions;
104	while (tmp) {
105#ifdef USE_DEMANGLE
106		str1 = options.demangle ? my_demangle(tmp->name) : tmp->name;
107		str2 = options.demangle ? my_demangle(name) : name;
108#else
109		str1 = tmp->name;
110		str2 = name;
111#endif
112		if (!strcmp(str1, str2)) {
113
114			return tmp;
115		}
116		tmp = tmp->next;
117	}
118	return NULL;
119}
120
121void
122output_line(Process *proc, char *fmt, ...) {
123	va_list args;
124
125	if (options.summary) {
126		return;
127	}
128	if (current_proc) {
129		if (current_proc->callstack[current_depth].return_addr) {
130			fprintf(options.output, " <unfinished ...>\n");
131		} else {
132			fprintf(options.output, " <no return ...>\n");
133		}
134	}
135	current_proc = 0;
136	if (!fmt) {
137		return;
138	}
139	begin_of_line(LT_TOF_NONE, proc);
140
141	va_start(args, fmt);
142	vfprintf(options.output, fmt, args);
143	fprintf(options.output, "\n");
144	va_end(args);
145	current_column = 0;
146}
147
148static void
149tabto(int col) {
150	if (current_column < col) {
151		fprintf(options.output, "%*s", col - current_column, "");
152	}
153}
154
155void
156output_left(enum tof type, Process *proc, char const *function_name) {
157	Function *func;
158	static arg_type_info *arg_unknown = NULL;
159	if (arg_unknown == NULL)
160	    arg_unknown = lookup_prototype(ARGTYPE_UNKNOWN);
161
162	if (options.summary) {
163		return;
164	}
165	if (current_proc) {
166		fprintf(options.output, " <unfinished ...>\n");
167		current_column = 0;
168	}
169	current_proc = proc;
170	current_depth = proc->callstack_depth;
171	begin_of_line(type, proc);
172#ifdef USE_DEMANGLE
173	current_column +=
174	    fprintf(options.output, "%s(",
175		    options.demangle ? my_demangle(function_name) : function_name);
176#else
177	current_column += fprintf(options.output, "%s(", function_name);
178#endif
179
180	func = name2func(function_name);
181	if (!func) {
182		int i;
183		for (i = 0; i < 4; i++) {
184			current_column +=
185			    display_arg(type, proc, i, arg_unknown);
186			current_column += fprintf(options.output, ", ");
187		}
188		current_column += display_arg(type, proc, 4, arg_unknown);
189		return;
190	} else {
191		int i;
192		for (i = 0; i < func->num_params - func->params_right - 1; i++) {
193			current_column +=
194			    display_arg(type, proc, i, func->arg_info[i]);
195			current_column += fprintf(options.output, ", ");
196		}
197		if (func->num_params > func->params_right) {
198			current_column +=
199			    display_arg(type, proc, i, func->arg_info[i]);
200			if (func->params_right) {
201				current_column += fprintf(options.output, ", ");
202			}
203		}
204		if (func->params_right
205		    || func->return_info->type == ARGTYPE_STRING_N
206		    || func->return_info->type == ARGTYPE_ARRAY) {
207			save_register_args(type, proc);
208		}
209	}
210}
211
212void
213output_right(enum tof type, Process *proc, char *function_name) {
214	Function *func = name2func(function_name);
215	static arg_type_info *arg_unknown = NULL;
216	if (arg_unknown == NULL)
217	    arg_unknown = lookup_prototype(ARGTYPE_UNKNOWN);
218
219	if (options.summary) {
220		struct opt_c_struct *st;
221		if (!dict_opt_c) {
222			dict_opt_c =
223			    dict_init(dict_key2hash_string,
224				      dict_key_cmp_string);
225		}
226		st = dict_find_entry(dict_opt_c, function_name);
227		if (!st) {
228			char *na;
229			st = malloc(sizeof(struct opt_c_struct));
230			na = strdup(function_name);
231			if (!st || !na) {
232				perror("malloc()");
233				exit(1);
234			}
235			st->count = 0;
236			st->tv.tv_sec = st->tv.tv_usec = 0;
237			dict_enter(dict_opt_c, na, st);
238		}
239		if (st->tv.tv_usec + current_time_spent.tv_usec > 1000000) {
240			st->tv.tv_usec += current_time_spent.tv_usec - 1000000;
241			st->tv.tv_sec++;
242		} else {
243			st->tv.tv_usec += current_time_spent.tv_usec;
244		}
245		st->count++;
246		st->tv.tv_sec += current_time_spent.tv_sec;
247
248//              fprintf(options.output, "%s <%lu.%06d>\n", function_name,
249//                              current_time_spent.tv_sec, (int)current_time_spent.tv_usec);
250		return;
251	}
252	if (current_proc && (current_proc != proc ||
253			    current_depth != proc->callstack_depth)) {
254		fprintf(options.output, " <unfinished ...>\n");
255		current_proc = 0;
256	}
257	if (current_proc != proc) {
258		begin_of_line(type, proc);
259#ifdef USE_DEMANGLE
260		current_column +=
261		    fprintf(options.output, "<... %s resumed> ",
262			    options.demangle ? my_demangle(function_name) : function_name);
263#else
264		current_column +=
265		    fprintf(options.output, "<... %s resumed> ", function_name);
266#endif
267	}
268
269	if (!func) {
270		current_column += fprintf(options.output, ") ");
271		tabto(options.align - 1);
272		fprintf(options.output, "= ");
273		display_arg(type, proc, -1, arg_unknown);
274	} else {
275		int i;
276		for (i = func->num_params - func->params_right;
277		     i < func->num_params - 1; i++) {
278			current_column +=
279			    display_arg(type, proc, i, func->arg_info[i]);
280			current_column += fprintf(options.output, ", ");
281		}
282		if (func->params_right) {
283			current_column +=
284			    display_arg(type, proc, i, func->arg_info[i]);
285		}
286		current_column += fprintf(options.output, ") ");
287		tabto(options.align - 1);
288		fprintf(options.output, "= ");
289		if (func->return_info->type == ARGTYPE_VOID) {
290			fprintf(options.output, "<void>");
291		} else {
292			display_arg(type, proc, -1, func->return_info);
293		}
294	}
295	if (opt_T) {
296		fprintf(options.output, " <%lu.%06d>",
297			current_time_spent.tv_sec,
298			(int)current_time_spent.tv_usec);
299	}
300	fprintf(options.output, "\n");
301
302#if defined(HAVE_LIBUNWIND)
303	if (options.bt_depth > 0) {
304		unw_cursor_t cursor;
305		unw_word_t ip, sp;
306		int unwind_depth = options.bt_depth;
307		char fn_name[100];
308
309		unw_init_remote(&cursor, proc->unwind_as, proc->unwind_priv);
310		while (unwind_depth) {
311			unw_get_reg(&cursor, UNW_REG_IP, &ip);
312			unw_get_reg(&cursor, UNW_REG_SP, &sp);
313			unw_get_proc_name(&cursor, fn_name, 100, NULL);
314			fprintf(options.output, "\t\t\t%s (ip = 0x%lx)\n", fn_name, (long) ip);
315			if (unw_step(&cursor) <= 0)
316				break;
317			unwind_depth--;
318		}
319		fprintf(options.output, "\n");
320	}
321#endif /* defined(HAVE_LIBUNWIND) */
322
323	current_proc = 0;
324	current_column = 0;
325}
326