navit/navit/debug.c

/**
 * Navit, a modular navigation system.
 * Copyright (C) 2005-2008 Navit Team
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the
 * Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA  02110-1301, USA.
 */

#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <glib.h>
#ifndef _MSC_VER
#include <sys/time.h>
#endif /* _MSC_VER */
#include "config.h"
#include "file.h"
#include "item.h"
#include "debug.h"

#ifdef HAVE_API_ANDROID
#include <android/log.h>
#endif

#if defined HAVE_API_WIN32_CE || defined _MSC_VER
#include <windows.h>
#include <windowsx.h>
#endif

#ifdef HAVE_SOCKET
#include <stdlib.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
static int debug_socket=-1;
static struct sockaddr_in debug_sin;
#endif


int debug_level=0;
int segv_level=0;
int timestamp_prefix=0;

static int dummy;
static GHashTable *debug_hash;
static gchar *gdb_program;

static FILE *debug_fp;

#if defined(_WIN32) || defined(__CEGCC__)

static void sigsegv(int sig)
{
}

#else
#include <unistd.h>
static void sigsegv(int sig)
{
        char buffer[256];
        if (segv_level > 1)
                sprintf(buffer, "gdb -ex bt %s %d", gdb_program, getpid());
        else
                sprintf(buffer, "gdb -ex bt -ex detach -ex quit %s %d", gdb_program, getpid());
        system(buffer);
        exit(1);
}
#endif

void
debug_init(const char *program_name)
{
        gdb_program=g_strdup(program_name);
        signal(SIGSEGV, sigsegv);
        debug_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
        debug_fp = stderr;
}


static void
debug_update_level(gpointer key, gpointer value, gpointer user_data)
{
        if (debug_level < GPOINTER_TO_INT(value))
                debug_level = GPOINTER_TO_INT(value);
}

void
debug_level_set(const char *name, int level)
{
        if (!strcmp(name, "segv")) {
                segv_level=level;
                if (segv_level)
                        signal(SIGSEGV, sigsegv);
                else
                        signal(SIGSEGV, NULL);
        } else if (!strcmp(name, "timestamps")) {
                timestamp_prefix=level;
        } else {
                debug_level=0;
                g_hash_table_insert(debug_hash, g_strdup(name), GINT_TO_POINTER(level));
                g_hash_table_foreach(debug_hash, debug_update_level, NULL);
        }
}

struct debug *
debug_new(struct attr *parent, struct attr **attrs)
{
        struct attr *name,*level;
        name=attr_search(attrs, NULL, attr_name);
        level=attr_search(attrs, NULL, attr_level);
#ifdef HAVE_SOCKET
        if (!name && !level) {
                struct attr *socket_attr=attr_search(attrs, NULL, attr_socket);
                char *p,*s;
                if (!socket_attr)
                        return NULL;
                s=g_strdup(socket_attr->u.str);
                p=strchr(s,':');
                if (!p) {
                        g_free(s);
                        return NULL;
                }
                *p++='\0';
                debug_sin.sin_family=AF_INET;
                if (!inet_aton(s, &debug_sin.sin_addr)) {
                        g_free(s);
                        return NULL;
                }
                debug_sin.sin_port=ntohs(atoi(p));
                if (debug_socket == -1) 
                        debug_socket=socket(PF_INET, SOCK_DGRAM, 0);
                g_free(s);
                return (struct debug *)&dummy;  
        }
#endif
        if (!name || !level)
                return NULL;
        debug_level_set(name->u.str, level->u.num);
        return (struct debug *)&dummy;
}


int
debug_level_get(const char *name)
{
        if (!debug_hash)
                return 0;
        return GPOINTER_TO_INT(g_hash_table_lookup(debug_hash, name));
}

static void debug_timestamp(char *buffer)
{
#if defined HAVE_API_WIN32_CE || defined _MSC_VER
        LARGE_INTEGER counter, frequency;
        double val;
        QueryPerformanceCounter(&counter);
        QueryPerformanceFrequency(&frequency);
        val=counter.HighPart * 4294967296.0 + counter.LowPart;
        val/=frequency.HighPart * 4294967296.0 + frequency.LowPart;
        sprintf(buffer,"%.6f|",val);

#else
        struct timeval tv;

        if (gettimeofday(&tv, NULL) == -1)
                return;
        /* Timestamps are UTC */
        sprintf(buffer,
                "%02d:%02d:%02d.%03d|",
                (int)(tv.tv_sec/3600)%24,
                (int)(tv.tv_sec/60)%60,
                (int)tv.tv_sec % 60,
                (int)tv.tv_usec/1000);
#endif
}

void
debug_vprintf(int level, const char *module, const int mlen, const char *function, const int flen, int prefix, const char *fmt, va_list ap)
{
#if defined HAVE_API_WIN32_CE || defined _MSC_VER
        char buffer[4096];
#else
        char buffer[mlen+flen+3];
#endif
        FILE *fp=debug_fp;

        sprintf(buffer, "%s:%s", module, function);
        if (debug_level_get(module) >= level || debug_level_get(buffer) >= level) {
#if defined(DEBUG_WIN32_CE_MESSAGEBOX)
                wchar_t muni[4096];
#endif
                char xbuffer[4096];
                xbuffer[0]='\0';
                if (prefix) {
                        if (timestamp_prefix)
                                debug_timestamp(xbuffer);       
                        strcpy(xbuffer+strlen(xbuffer),buffer);
                        strcpy(xbuffer+strlen(xbuffer),":");
                }
                vsprintf(xbuffer+strlen(xbuffer),fmt,ap);
#ifdef DEBUG_WIN32_CE_MESSAGEBOX
                mbstowcs(muni, xbuffer, strlen(xbuffer)+1);
                MessageBoxW(NULL, muni, TEXT("Navit - Error"), MB_APPLMODAL|MB_OK|MB_ICONERROR);
#else
#ifdef HAVE_API_ANDROID
                __android_log_print(ANDROID_LOG_ERROR,"navit", "%s", xbuffer);
#else
#ifdef HAVE_SOCKET
                if (debug_socket != -1) {
                        sendto(debug_socket, xbuffer, strlen(xbuffer), 0, (struct sockaddr *)&debug_sin, sizeof(debug_sin));
                        return;
                }
#endif
                if (! fp)
                        fp = stderr;
                fprintf(fp,"%s",xbuffer);
                fflush(fp);
#endif
#endif
        }
}

void
debug_printf(int level, const char *module, const int mlen,const char *function, const int flen, int prefix, const char *fmt, ...)
{
#ifdef _DEBUG_BUILD_
        va_list ap;
        va_start(ap, fmt);
        debug_vprintf(level, module, mlen, function, flen, prefix, fmt, ap);
        va_end(ap);
#endif
}

void
debug_printf2(int level, const char *module, const int mlen,const char *function, const int flen, int prefix, const char *fmt, ...)
{
        va_list ap;
        va_start(ap, fmt);
        debug_vprintf(level, module, mlen, function, flen, prefix, fmt, ap);
        va_end(ap);
}

void
debug_assert_fail(const char *module, const int mlen,const char *function, const int flen, const char *file, int line, const char *expr)
{
        debug_printf2(0,module,mlen,function,flen,1,"%s:%d assertion failed:%s\n", file, line, expr);
        abort();
}

void
debug_destroy(void)
{
        if (!debug_fp)
                return;
        if (debug_fp == stderr || debug_fp == stdout)
                return;
        fclose(debug_fp);
        debug_fp = NULL;
}

void debug_set_logfile(const char *path)
{
        FILE *fp;
        fp = fopen(path, "a");
        if (fp) {
                debug_destroy();
                debug_fp = fp;
                fprintf(debug_fp, "Navit log started\n");
                fflush(debug_fp);
        }
}

struct malloc_head {
        int magic;
        int size;
        char *where;
        void *return_address[8];
        struct malloc_head *prev;
        struct malloc_head *next;
} *malloc_heads;

struct malloc_tail {
        int magic;
};

int mallocs,malloc_size,malloc_size_m;

void
debug_dump_mallocs(void)
{
        struct malloc_head *head=malloc_heads;
        int i;
        dbg(0,"mallocs %d\n",mallocs);
        while (head) {
                fprintf(stderr,"unfreed malloc from %s of size %d\n",head->where,head->size);
                for (i = 0 ; i < 8 ; i++)
                        fprintf(stderr,"\tlist *%p\n",head->return_address[i]);
#if 0
                fprintf(stderr,"%s\n",head+1);
#endif
                head=head->next;
        }
}

void *
debug_malloc(const char *where, int line, const char *func, int size)
{
        struct malloc_head *head;
        struct malloc_tail *tail;
        if (!size)
                return NULL;
        mallocs++;
        malloc_size+=size;
        if (malloc_size/(1024*1024) != malloc_size_m) {
                malloc_size_m=malloc_size/(1024*1024);
                dbg(0,"malloced %d kb\n",malloc_size/1024);
        }
        head=malloc(size+sizeof(*head)+sizeof(*tail));
        head->magic=0xdeadbeef;
        head->size=size;
        head->prev=NULL;
        head->next=malloc_heads;
        malloc_heads=head;
        if (head->next) 
                head->next->prev=head;
        head->where=g_strdup_printf("%s:%d %s",where,line,func);
#if !defined (__GNUC__)
#define __builtin_return_address(x) NULL
#endif
        head->return_address[0]=__builtin_return_address(0);
        head->return_address[1]=__builtin_return_address(1);
        head->return_address[2]=__builtin_return_address(2);
        head->return_address[3]=__builtin_return_address(3);
        head->return_address[4]=__builtin_return_address(4);
        head->return_address[5]=__builtin_return_address(5);
        head->return_address[6]=__builtin_return_address(6);
        head->return_address[7]=__builtin_return_address(7);
        head++;
        tail=(struct malloc_tail *)((unsigned char *)head+size);
        tail->magic=0xdeadbef0;
        return head;
}


void *
debug_malloc0(const char *where, int line, const char *func, int size)
{
        void *ret=debug_malloc(where, line, func, size);
        if (ret)
                memset(ret, 0, size);
        return ret;
}

void *
debug_realloc(const char *where, int line, const char *func, void *ptr, int size)
{
        void *ret=debug_malloc(where, line, func, size);
        if (ret && ptr)
                memcpy(ret, ptr, size);
        debug_free(where, line, func, ptr);
        return ret;
}

char *
debug_strdup(const char *where, int line, const char *func, const char *ptr)
{ 
        int size;
        char *ret;

        if (!ptr)
                return NULL;
        size=strlen(ptr)+1;
        ret=debug_malloc(where, line, func, size);
        memcpy(ret, ptr, size);
        return ret;
}

char *
debug_guard(const char *where, int line, const char *func, char *str)
{
        char *ret=debug_strdup(where, line, func, str);
        g_free(str);
        return ret;
}

void
debug_free(const char *where, int line, const char *func, void *ptr)
{
        struct malloc_head *head;
        struct malloc_tail *tail;
        if (!ptr)
                return;
        mallocs--;
        head=(struct malloc_head *)((unsigned char *)ptr-sizeof(*head));
        tail=(struct malloc_tail *)((unsigned char *)ptr+head->size);
        malloc_size-=head->size;
        if (head->magic != 0xdeadbeef || tail->magic != 0xdeadbef0) {
                fprintf(stderr,"Invalid free from %s:%d %s\n",where,line,func);
        }
        head->magic=0;
        tail->magic=0;
        if (head->prev) 
                head->prev->next=head->next;
        else
                malloc_heads=head->next;
        if (head->next)
                head->next->prev=head->prev;
        free(head->where);
        free(head);
}

void
debug_free_func(void *ptr)
{
        debug_free("unknown",0,"unknown",ptr);
}

clock_t
debug_measure_start(void)
{
        clock_t start = clock();
        return start;
}

clock_t
debug_measure_end(clock_t start_time)
{
        clock_t diff_time = clock() - start_time;
        return diff_time;
}

int
debug_measure_end_tsecs(clock_t start_time)
{
        clock_t diff_time = clock() - start_time;
        return (int)( ((double)diff_time / (double)CLOCKS_PER_SEC)*1000 );
}

void
debug_measure_result_str(clock_t diff, char *buffer)
{
        sprintf(buffer, "elapsed: %fs\n", (diff / CLOCKS_PER_SEC));
}

void
debug_mrp(const char* function_name, clock_t diff)
{
        dbg(0, "el:(%s) %fs\n", function_name, (double)((double)diff / (double)CLOCKS_PER_SEC));
}

void debug_finished(void)
{
        debug_dump_mallocs();
        g_free(gdb_program);
        g_hash_table_destroy(debug_hash);
        debug_destroy();
}

1	/**
2	* Navit, a modular navigation system.
3	* Copyright (C) 2005-2008 Navit Team
4	*
5	* This program is free software; you can redistribute it and/or
6	* modify it under the terms of the GNU General Public License
7	* version 2 as 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
16	* Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
17	* Boston, MA 02110-1301, USA.
18	*/
19
20	#include <signal.h>
21	#include <stdarg.h>
22	#include <stdio.h>
23	#include <stdlib.h>
24	#include <string.h>
25	#include <time.h>
26	#include <glib.h>
27	#ifndef _MSC_VER
28	#include <sys/time.h>
29	#endif /* _MSC_VER */
30	#include "config.h"
31	#include "file.h"
32	#include "item.h"
33	#include "debug.h"
34
35	#ifdef HAVE_API_ANDROID
36	#include <android/log.h>
37	#endif
38
39	#if defined HAVE_API_WIN32_CE \|\| defined _MSC_VER
40	#include <windows.h>
41	#include <windowsx.h>
42	#endif
43
44	#ifdef HAVE_SOCKET
45	#include <stdlib.h>
46	#include <sys/socket.h>
47	#include <netinet/in.h>
48	#include <arpa/inet.h>
49	static int debug_socket=-1;
50	static struct sockaddr_in debug_sin;
51	#endif
52
53
54	int debug_level=0;
55	int segv_level=0;
56	int timestamp_prefix=0;
57
58	static int dummy;
59	static GHashTable *debug_hash;
60	static gchar *gdb_program;
61
62	static FILE *debug_fp;
63
64	#if defined(_WIN32) \|\| defined(__CEGCC__)
65
66	static void sigsegv(int sig)
67	{
68	}
69
70	#else
71	#include <unistd.h>
72	static void sigsegv(int sig)
73	{
74	char buffer[256];
75	if (segv_level > 1)
76	sprintf(buffer, "gdb -ex bt %s %d", gdb_program, getpid());
77	else
78	sprintf(buffer, "gdb -ex bt -ex detach -ex quit %s %d", gdb_program, getpid());
79	system(buffer);
80	exit(1);
81	}
82	#endif
83
84	void
85	debug_init(const char *program_name)
86	{
87	gdb_program=g_strdup(program_name);
88	signal(SIGSEGV, sigsegv);
89	debug_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
90	debug_fp = stderr;
91	}
92
93
94	static void
95	debug_update_level(gpointer key, gpointer value, gpointer user_data)
96	{
97	if (debug_level < GPOINTER_TO_INT(value))
98	debug_level = GPOINTER_TO_INT(value);
99	}
100
101	void
102	debug_level_set(const char *name, int level)
103	{
104	if (!strcmp(name, "segv")) {
105	segv_level=level;
106	if (segv_level)
107	signal(SIGSEGV, sigsegv);
108	else
109	signal(SIGSEGV, NULL);
110	} else if (!strcmp(name, "timestamps")) {
111	timestamp_prefix=level;
112	} else {
113	debug_level=0;
114	g_hash_table_insert(debug_hash, g_strdup(name), GINT_TO_POINTER(level));
115	g_hash_table_foreach(debug_hash, debug_update_level, NULL);
116	}
117	}
118
119	struct debug *
120	debug_new(struct attr parent, struct attr *attrs)
121	{
122	struct attr name,level;
123	name=attr_search(attrs, NULL, attr_name);
124	level=attr_search(attrs, NULL, attr_level);
125	#ifdef HAVE_SOCKET
126	if (!name && !level) {
127	struct attr *socket_attr=attr_search(attrs, NULL, attr_socket);
128	char p,s;
129	if (!socket_attr)
130	return NULL;
131	s=g_strdup(socket_attr->u.str);
132	p=strchr(s,':');
133	if (!p) {
134	g_free(s);
135	return NULL;
136	}
137	*p++='\0';
138	debug_sin.sin_family=AF_INET;
139	if (!inet_aton(s, &debug_sin.sin_addr)) {
140	g_free(s);
141	return NULL;
142	}
143	debug_sin.sin_port=ntohs(atoi(p));
144	if (debug_socket == -1)
145	debug_socket=socket(PF_INET, SOCK_DGRAM, 0);
146	g_free(s);
147	return (struct debug *)&dummy;
148	}
149	#endif
150	if (!name \|\| !level)
151	return NULL;
152	debug_level_set(name->u.str, level->u.num);
153	return (struct debug *)&dummy;
154	}
155
156
157	int
158	debug_level_get(const char *name)
159	{
160	if (!debug_hash)
161	return 0;
162	return GPOINTER_TO_INT(g_hash_table_lookup(debug_hash, name));
163	}
164
165	static void debug_timestamp(char *buffer)
166	{
167	#if defined HAVE_API_WIN32_CE \|\| defined _MSC_VER
168	LARGE_INTEGER counter, frequency;
169	double val;
170	QueryPerformanceCounter(&counter);
171	QueryPerformanceFrequency(&frequency);
172	val=counter.HighPart * 4294967296.0 + counter.LowPart;
173	val/=frequency.HighPart * 4294967296.0 + frequency.LowPart;
174	sprintf(buffer,"%.6f\|",val);
175
176	#else
177	struct timeval tv;
178
179	if (gettimeofday(&tv, NULL) == -1)
180	return;
181	/* Timestamps are UTC */
182	sprintf(buffer,
183	"%02d:%02d:%02d.%03d\|",
184	(int)(tv.tv_sec/3600)%24,
185	(int)(tv.tv_sec/60)%60,
186	(int)tv.tv_sec % 60,
187	(int)tv.tv_usec/1000);
188	#endif
189	}
190
191	void
192	debug_vprintf(int level, const char module, const int mlen, const char function, const int flen, int prefix, const char *fmt, va_list ap)
193	{
194	#if defined HAVE_API_WIN32_CE \|\| defined _MSC_VER
195	char buffer[4096];
196	#else
197	char buffer[mlen+flen+3];
198	#endif
199	FILE *fp=debug_fp;
200
201	sprintf(buffer, "%s:%s", module, function);
202	if (debug_level_get(module) >= level \|\| debug_level_get(buffer) >= level) {
203	#if defined(DEBUG_WIN32_CE_MESSAGEBOX)
204	wchar_t muni[4096];
205	#endif
206	char xbuffer[4096];
207	xbuffer[0]='\0';
208	if (prefix) {
209	if (timestamp_prefix)
210	debug_timestamp(xbuffer);
211	strcpy(xbuffer+strlen(xbuffer),buffer);
212	strcpy(xbuffer+strlen(xbuffer),":");
213	}
214	vsprintf(xbuffer+strlen(xbuffer),fmt,ap);
215	#ifdef DEBUG_WIN32_CE_MESSAGEBOX
216	mbstowcs(muni, xbuffer, strlen(xbuffer)+1);
217	MessageBoxW(NULL, muni, TEXT("Navit - Error"), MB_APPLMODAL\|MB_OK\|MB_ICONERROR);
218	#else
219	#ifdef HAVE_API_ANDROID
220	__android_log_print(ANDROID_LOG_ERROR,"navit", "%s", xbuffer);
221	#else
222	#ifdef HAVE_SOCKET
223	if (debug_socket != -1) {
224	sendto(debug_socket, xbuffer, strlen(xbuffer), 0, (struct sockaddr *)&debug_sin, sizeof(debug_sin));
225	return;
226	}
227	#endif
228	if (! fp)
229	fp = stderr;
230	fprintf(fp,"%s",xbuffer);
231	fflush(fp);
232	#endif
233	#endif
234	}
235	}
236
237	void
238	debug_printf(int level, const char module, const int mlen,const char function, const int flen, int prefix, const char *fmt, ...)
239	{
240	#ifdef _DEBUG_BUILD_
241	va_list ap;
242	va_start(ap, fmt);
243	debug_vprintf(level, module, mlen, function, flen, prefix, fmt, ap);
244	va_end(ap);
245	#endif
246	}
247
248	void
249	debug_printf2(int level, const char module, const int mlen,const char function, const int flen, int prefix, const char *fmt, ...)
250	{
251	va_list ap;
252	va_start(ap, fmt);
253	debug_vprintf(level, module, mlen, function, flen, prefix, fmt, ap);
254	va_end(ap);
255	}
256
257	void
258	debug_assert_fail(const char module, const int mlen,const char function, const int flen, const char file, int line, const char expr)
259	{
260	debug_printf2(0,module,mlen,function,flen,1,"%s:%d assertion failed:%s\n", file, line, expr);
261	abort();
262	}
263
264	void
265	debug_destroy(void)
266	{
267	if (!debug_fp)
268	return;
269	if (debug_fp == stderr \|\| debug_fp == stdout)
270	return;
271	fclose(debug_fp);
272	debug_fp = NULL;
273	}
274
275	void debug_set_logfile(const char *path)
276	{
277	FILE *fp;
278	fp = fopen(path, "a");
279	if (fp) {
280	debug_destroy();
281	debug_fp = fp;
282	fprintf(debug_fp, "Navit log started\n");
283	fflush(debug_fp);
284	}
285	}
286
287	struct malloc_head {
288	int magic;
289	int size;
290	char *where;
291	void *return_address[8];
292	struct malloc_head *prev;
293	struct malloc_head *next;
294	} *malloc_heads;
295
296	struct malloc_tail {
297	int magic;
298	};
299
300	int mallocs,malloc_size,malloc_size_m;
301
302	void
303	debug_dump_mallocs(void)
304	{
305	struct malloc_head *head=malloc_heads;
306	int i;
307	dbg(0,"mallocs %d\n",mallocs);
308	while (head) {
309	fprintf(stderr,"unfreed malloc from %s of size %d\n",head->where,head->size);
310	for (i = 0 ; i < 8 ; i++)
311	fprintf(stderr,"\tlist *%p\n",head->return_address[i]);
312	#if 0
313	fprintf(stderr,"%s\n",head+1);
314	#endif
315	head=head->next;
316	}
317	}
318
319	void *
320	debug_malloc(const char where, int line, const char func, int size)
321	{
322	struct malloc_head *head;
323	struct malloc_tail *tail;
324	if (!size)
325	return NULL;
326	mallocs++;
327	malloc_size+=size;
328	if (malloc_size/(1024*1024) != malloc_size_m) {
329	malloc_size_m=malloc_size/(1024*1024);
330	dbg(0,"malloced %d kb\n",malloc_size/1024);
331	}
332	head=malloc(size+sizeof(head)+sizeof(tail));
333	head->magic=0xdeadbeef;
334	head->size=size;
335	head->prev=NULL;
336	head->next=malloc_heads;
337	malloc_heads=head;
338	if (head->next)
339	head->next->prev=head;
340	head->where=g_strdup_printf("%s:%d %s",where,line,func);
341	#if !defined (__GNUC__)
342	#define __builtin_return_address(x) NULL
343	#endif
344	head->return_address[0]=__builtin_return_address(0);
345	head->return_address[1]=__builtin_return_address(1);
346	head->return_address[2]=__builtin_return_address(2);
347	head->return_address[3]=__builtin_return_address(3);
348	head->return_address[4]=__builtin_return_address(4);
349	head->return_address[5]=__builtin_return_address(5);
350	head->return_address[6]=__builtin_return_address(6);
351	head->return_address[7]=__builtin_return_address(7);
352	head++;
353	tail=(struct malloc_tail )((unsigned char )head+size);
354	tail->magic=0xdeadbef0;
355	return head;
356	}
357
358
359	void *
360	debug_malloc0(const char where, int line, const char func, int size)
361	{
362	void *ret=debug_malloc(where, line, func, size);
363	if (ret)
364	memset(ret, 0, size);
365	return ret;
366	}
367
368	void *
369	debug_realloc(const char where, int line, const char func, void *ptr, int size)
370	{
371	void *ret=debug_malloc(where, line, func, size);
372	if (ret && ptr)
373	memcpy(ret, ptr, size);
374	debug_free(where, line, func, ptr);
375	return ret;
376	}
377
378	char *
379	debug_strdup(const char where, int line, const char func, const char *ptr)
380	{
381	int size;
382	char *ret;
383
384	if (!ptr)
385	return NULL;
386	size=strlen(ptr)+1;
387	ret=debug_malloc(where, line, func, size);
388	memcpy(ret, ptr, size);
389	return ret;
390	}
391
392	char *
393	debug_guard(const char where, int line, const char func, char *str)
394	{
395	char *ret=debug_strdup(where, line, func, str);
396	g_free(str);
397	return ret;
398	}
399
400	void
401	debug_free(const char where, int line, const char func, void *ptr)
402	{
403	struct malloc_head *head;
404	struct malloc_tail *tail;
405	if (!ptr)
406	return;
407	mallocs--;
408	head=(struct malloc_head )((unsigned char )ptr-sizeof(*head));
409	tail=(struct malloc_tail )((unsigned char )ptr+head->size);
410	malloc_size-=head->size;
411	if (head->magic != 0xdeadbeef \|\| tail->magic != 0xdeadbef0) {
412	fprintf(stderr,"Invalid free from %s:%d %s\n",where,line,func);
413	}
414	head->magic=0;
415	tail->magic=0;
416	if (head->prev)
417	head->prev->next=head->next;
418	else
419	malloc_heads=head->next;
420	if (head->next)
421	head->next->prev=head->prev;
422	free(head->where);
423	free(head);
424	}
425
426	void
427	debug_free_func(void *ptr)
428	{
429	debug_free("unknown",0,"unknown",ptr);
430	}
431
432	clock_t
433	debug_measure_start(void)
434	{
435	clock_t start = clock();
436	return start;
437	}
438
439	clock_t
440	debug_measure_end(clock_t start_time)
441	{
442	clock_t diff_time = clock() - start_time;
443	return diff_time;
444	}
445
446	int
447	debug_measure_end_tsecs(clock_t start_time)
448	{
449	clock_t diff_time = clock() - start_time;
450	return (int)( ((double)diff_time / (double)CLOCKS_PER_SEC)*1000 );
451	}
452
453	void
454	debug_measure_result_str(clock_t diff, char *buffer)
455	{
456	sprintf(buffer, "elapsed: %fs\n", (diff / CLOCKS_PER_SEC));
457	}
458
459	void
460	debug_mrp(const char* function_name, clock_t diff)
461	{
462	dbg(0, "el:(%s) %fs\n", function_name, (double)((double)diff / (double)CLOCKS_PER_SEC));
463	}
464
465	void debug_finished(void)
466	{
467	debug_dump_mallocs();
468	g_free(gdb_program);
469	g_hash_table_destroy(debug_hash);
470	debug_destroy();
471	}
472