*
* @APPLE_LICENSE_HEADER_START@
*
- * Copyright (c) 1999-2003 Apple Computer, Inc. All Rights Reserved.
- *
- * This file contains Original Code and/or Modifications of Original Code
- * as defined in and that are subject to the Apple Public Source License
- * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * "Portions Copyright (c) 1999 Apple Computer, Inc. All Rights
+ * Reserved. This file contains Original Code and/or Modifications of
+ * Original Code as defined in and that are subject to the Apple Public
+ * Source License Version 1.0 (the 'License'). You may not use this file
+ * except in compliance with the License. Please obtain a copy of the
+ * License at http://www.apple.com/publicsource and read it before using
+ * this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
- * Please see the License for the specific language governing rights and
- * limitations under the License.
+ * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
+ * License for the specific language governing rights and limitations
+ * under the License."
*
* @APPLE_LICENSE_HEADER_END@
*/
/*
- cc -I. -DKERNEL_PRIVATE -O -o latency latency.c -lncurses
+ cc -I. -DPRIVATE -D__APPLE_PRIVATE -O -o latency latency.c -lncurses
*/
#include <mach/mach.h>
#include <stdlib.h>
#include <stdio.h>
+#include <unistd.h>
#include <signal.h>
#include <strings.h>
#include <nlist.h>
int total_threads = 0;
kd_threadmap *mapptr = 0;
-#define MAX_ENTRIES 1024
+#define MAX_ENTRIES 4096
struct ct {
int type;
char name[32];
} codes_tab[MAX_ENTRIES];
-/* If NUMPARMS changes from the kernel, then PATHLENGTH will also reflect the change */
+
#define NUMPARMS 23
-#define PATHLENGTH (NUMPARMS*sizeof(long))
struct th_info {
int thread;
int arg1;
double stime;
long *pathptr;
- char pathname[PATHLENGTH + 1];
+ long pathname[NUMPARMS + 1];
};
#define MAX_THREADS 512
#define INTERRUPT 0x01050000
#define DECR_TRAP 0x01090000
#define DECR_SET 0x01090004
-#define MACH_vmfault 0x01300000
+#define MACH_vmfault 0x01300008
#define MACH_sched 0x01400000
#define MACH_stkhandoff 0x01400008
#define VFS_LOOKUP 0x03010090
#define DBG_FUNC_ALL (DBG_FUNC_START | DBG_FUNC_END)
#define DBG_FUNC_MASK 0xfffffffc
+#define CPU_NUMBER(ts) ((ts & KDBG_CPU_MASK) >> KDBG_CPU_SHIFT)
+
#define DBG_ZERO_FILL_FAULT 1
#define DBG_PAGEIN_FAULT 2
#define DBG_COW_FAULT 3
sysctl(mib, 3, &kr, &needed, NULL, 0);
}
-set_rtcdec(decval)
+void set_rtcdec(decval)
int decval;
{kd_regtype kr;
int ret;
mib[5] = 0; /* no flags */
errno = 0;
-
if ((ret=sysctl(mib, 3, &kr, &needed, NULL, 0)) < 0)
{
- decrementer_val = 0;
- quit("trace facility failure, KERN_KDSETRTCDEC\n");
+ decrementer_val = 0;
+ /* ignore this sysctl error if it's not supported */
+ if (errno == ENOENT)
+ return;
+ else
+ quit("trace facility failure, KERN_KDSETRTCDEC\n");
}
}
set_enable(0);
set_pidexclude(getpid(), 0);
screen_update(log_fp);
+ endwin();
set_rtcdec(0);
set_remove();
{
set_enable(0);
set_pidexclude(getpid(), 0);
+ endwin();
set_rtcdec(0);
set_remove();
elapsed_secs -= elapsed_mins * 60;
sprintf(tbuf, "%-19.19s %2ld:%02ld:%02ld\n", &(ctime(&curr_time)[0]),
- elapsed_hours, elapsed_mins, elapsed_secs);
+ (long)elapsed_hours, (long)elapsed_mins, (long)elapsed_secs);
if (fp)
fprintf(fp, "%s", tbuf);
else
{
fprintf(stderr, "Usage: latency [-rt] [-c codefile] [-l logfile] [-st threshold]\n");
- fprintf(stderr, " [-it threshold] [-s sleep_in_usecs]\n");
+
+#if defined (__i386__)
+ fprintf(stderr, " [-it threshold] [-s sleep_in_usecs] [-n kernel]\n\n");
+#else
+ fprintf(stderr, " [-it threshold] [-s sleep_in_usecs]\n");
fprintf(stderr, " [-d decrementer_in_usecs] [-n kernel]\n\n");
+#endif
+
fprintf(stderr, " -rt Set realtime scheduling policy. Default is timeshare.\n");
fprintf(stderr, " -c specify name of codes file\n");
fprintf(stderr, " -st set scheduler latency threshold in microseconds... if latency exceeds this, then log trace\n");
fprintf(stderr, " -it set interrupt latency threshold in microseconds... if latency exceeds this, then log trace\n");
fprintf(stderr, " -s set sleep time in microseconds\n");
+#if !defined (__i386__)
fprintf(stderr, " -d set decrementer in microseconds.\n");
+#endif
fprintf(stderr, " -n specify kernel, default is /mach_kernel\n");
fprintf(stderr, "\nlatency must be run as root\n\n");
}
-
+int
main(argc, argv)
int argc;
char *argv[];
{
- mach_timespec_t remain;
uint64_t start, stop;
uint64_t timestamp1;
uint64_t timestamp2;
int loop_cnt, sample_sc_now;
int decrementer_usec = 0;
kern_return_t ret;
- int size;
- int i, count;
+ unsigned int size;
host_name_port_t host;
void getdivisor();
void sample_sc();
num_of_usecs_to_sleep = atoi(argv[1]);
else
exit_usage();
- } else if (strcmp(argv[1], "-d") == 0) {
+ }
+ else if (strcmp(argv[1], "-d") == 0) {
argc--;
argv++;
decrementer_usec = atoi(argv[1]);
else
exit_usage();
- } else if (strcmp(argv[1], "-n") == 0) {
+#if defined(__i386__)
+ /* ignore this option - setting the decrementer has no effect */
+ decrementer_usec = 0;
+#endif
+ }
+ else if (strcmp(argv[1], "-n") == 0) {
argc--;
argv++;
getdivisor();
decrementer_val = decrementer_usec * divisor;
- /* get the cpu count for the DECR_TRAP array */
+ /* get the cpu countfor the DECR_TRAP array */
host = mach_host_self();
size = sizeof(hi)/sizeof(int);
ret = host_info(host, HOST_BASIC_INFO, (host_info_t)&hi, &size);
timestamp1 = mach_absolute_time();
adeadline = timestamp1 + adelay;
- mk_wait_until(adeadline);
+ mach_wait_until(adeadline);
timestamp2 = mach_absolute_time();
start = timestamp1;
size = bufinfo.nkdthreads * sizeof(kd_threadmap);
if (size)
{
- if (mapptr = (kd_threadmap *) malloc(size))
+ if ((mapptr = (kd_threadmap *) malloc(size)))
bzero (mapptr, size);
else
{
{
kd_threadmap *map;
- if (map = find_thread_map(thread)) {
+ if ((map = find_thread_map(thread))) {
#if 0
if (log_fp)
uint64_t now;
int count, i;
int first_entry = 1;
+ double timestamp = 0.0;
+ double last_timestamp = 0.0;
+ double delta = 0.0;
+ double start_bias = 0.0;
char command[32];
- double timestamp, last_timestamp, delta, start_bias;
void read_command_map();
if (log_fp && (my_policy == THREAD_TIME_CONSTRAINT_POLICY))
for (i = 0; i < cur_max; i++) {
th_state[i].thread = 0;
th_state[i].type = -1;
- th_state[i].pathptr = (long *)0;
+ th_state[i].pathptr = (long *)NULL;
th_state[i].pathname[0] = 0;
}
cur_max = 0;
char *p;
long *sargptr;
kd_buf *cur_kd;
- double i_latency;
+ double i_latency = 0.0;
struct th_info *ti;
char command1[32];
char sched_info[64];
void exit_syscall();
void print_entry();
- thread = kd->arg5 & KDBG_THREAD_MASK;
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
+ thread = kd->arg5;
+ cpunum = CPU_NUMBER(kd->timestamp);
debugid = kd->debugid;
type = kd->debugid & DBG_FUNC_MASK;
if (type == DECR_TRAP)
i_latency = handle_decrementer(kd);
- now = (((uint64_t)kd->timestamp.tv_sec) << 32) |
- (uint64_t)((unsigned int)(kd->timestamp.tv_nsec));
+ now = kd->timestamp & KDBG_TIMESTAMP_MASK;
timestamp = ((double)now) / divisor;
}
if ((kd->debugid & DBG_FUNC_MASK) == DECR_TRAP)
{
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
+ cpunum = CPU_NUMBER(kd->timestamp);
last_decrementer_kd[cpunum] = kd;
}
else
}
delta = timestamp - last_timestamp;
- if (map = find_thread_map(thread))
+ if ((map = find_thread_map(thread)))
strcpy(command, map->command);
else
command[0] = 0;
mode = 1;
- if (ti = find_thread((kd->arg5 & KDBG_THREAD_MASK), 0, 0)) {
+ if ((ti = find_thread(kd->arg5, 0, 0))) {
if (ti->type == -1 && strcmp(command, "kernel_task"))
mode = 0;
}
case MACH_stkhandoff:
last_mach_sched = kd;
- if (map = find_thread_map(kd->arg2))
+ if ((map = find_thread_map(kd->arg2)))
strcpy(command1, map->command);
else
sprintf(command1, "%-8x", kd->arg2);
- if (ti = find_thread(kd->arg2, 0, 0)) {
+ if ((ti = find_thread(kd->arg2, 0, 0))) {
if (ti->type == -1 && strcmp(command1, "kernel_task"))
p = "U";
else
}
while ( (kd < end_of_sample) && ((kd->debugid & DBG_FUNC_MASK) == VFS_LOOKUP))
{
- if (!ti->pathptr) {
+ if (ti->pathptr == NULL) {
ti->arg1 = kd->arg1;
- memset(&ti->pathname[0], 0, (PATHLENGTH + 1));
- sargptr = (long *)&ti->pathname[0];
+ sargptr = ti->pathname;
*sargptr++ = kd->arg2;
*sargptr++ = kd->arg3;
*sargptr++ = kd->arg4;
+ /*
+ * NULL terminate the 'string'
+ */
+ *sargptr = 0;
ti->pathptr = sargptr;
} else {
handle.
*/
- if ((long *)sargptr >= (long *)&ti->pathname[PATHLENGTH])
+ if (sargptr >= &ti->pathname[NUMPARMS])
{
kd++;
continue;
if (kd->debugid & DBG_FUNC_START)
{
- (long *)ti->pathptr = (long *)&ti->pathname[PATHLENGTH];
+ ti->pathptr = &ti->pathname[NUMPARMS];
}
else
{
*sargptr++ = kd->arg2;
*sargptr++ = kd->arg3;
*sargptr++ = kd->arg4;
+ /*
+ * NULL terminate the 'string'
+ */
+ *sargptr = 0;
+
ti->pathptr = sargptr;
}
}
kd++;
}
+ p = (char *)ti->pathname;
kd--;
- /* print the tail end of the pathname */
- len = strlen(ti->pathname);
+ /* print the tail end of the pathname */
+ len = strlen(p);
if (len > 42)
len -= 42;
else
if (log_fp) {
fprintf(log_fp, "%9.1f %8.1f\t\t%-14.14s %-42s %-8x %-8x %d %s\n",
timestamp - start_bias, delta, "VFS_LOOKUP",
- &ti->pathname[len], ti->arg1, thread, cpunum, command);
+ &p[len], ti->arg1, thread, cpunum, command);
}
last_timestamp = timestamp;
int cpunum;
char *p;
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
+ cpunum = CPU_NUMBER(kd->timestamp);
if (print_info && fp) {
- if (p = find_code(type)) {
+ if ((p = find_code(type))) {
if (type == INTERRUPT) {
int mode = 1;
- if (ti = find_thread((kd->arg5 & KDBG_THREAD_MASK), 0, 0)) {
+ if ((ti = find_thread(kd->arg5, 0, 0))) {
if (ti->type == -1 && strcmp(command, "kernel_task"))
mode = 0;
}
else
ti->type = -1;
ti->stime = timestamp;
- ti->pathptr = (long *)0;
+ ti->pathptr = (long *)NULL;
#if 0
if (print_info && fp)
struct th_info *ti;
int cpunum;
char *p;
+ uint64_t user_addr;
+
+ cpunum = CPU_NUMBER(kd->timestamp);
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
ti = find_thread(thread, type, type);
#if 0
if (print_info && fp)
else
fprintf(fp, "%9.1f %8.1f() \t", timestamp - bias, delta);
- if (p = find_code(type)) {
+ if ((p = find_code(type))) {
if (type == INTERRUPT) {
fprintf(fp, "INTERRUPT %-8x %d %s\n", thread, cpunum, command);
- } else if (type == MACH_vmfault && kd->arg2 <= DBG_CACHE_HIT_FAULT) {
- fprintf(fp, "%-28.28s %-8.8s %-8x %-8x %d %s\n",
- p, fault_name[kd->arg2], kd->arg1,
+ } else if (type == MACH_vmfault && kd->arg4 <= DBG_CACHE_HIT_FAULT) {
+ user_addr = ((uint64_t)kd->arg1 << 32) | (uint32_t)kd->arg2;
+
+ fprintf(fp, "%-28.28s %-8.8s %-16qx %-8x %d %s\n",
+ p, fault_name[kd->arg4], user_addr,
thread, cpunum, command);
} else {
fprintf(fp, "%-28.28s %-8x %-8x %-8x %d %s\n",
ti->thread = thread;
ti->child_thread = 0;
- ti->pathptr = (long *)0;
+ ti->pathptr = (long *)NULL;
}
}
ti->type = -1;
if (!fp)
return;
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
-
+ cpunum = CPU_NUMBER(kd->timestamp);
#if 0
fprintf(fp, "cur_max = %d, type = %x, thread = %x, cpunum = %d\n", cur_max, type, thread, cpunum);
#endif
- if (p = find_code(type)) {
+ if ((p = find_code(type))) {
fprintf(fp, "%9.1f %8.1f\t\t%-28.28s %-8x %-8x %-8x %-8x %-8x %d %s\n",
timestamp - bias, delta, p, kd->arg1, kd->arg2, kd->arg3, kd->arg4,
thread, cpunum, command);
ti->thread = thread;
ti->type = -1;
- ti->pathptr = (long *)0;
+ ti->pathptr = (long *)NULL;
}
ti->child_thread = kd->arg1;
return (1);
{
kd_buf *kd, *kd_start, *kd_stop;
int kd_count; /* Limit the boundary of kd_start */
- double timestamp, last_timestamp, delta, start_bias;
+ double timestamp = 0.0;
+ double last_timestamp = 0.0;
+ double delta = 0.0;
+ double start_bias = 0.0;
int thread, cpunum;
int debugid, type, clen;
int len;
fprintf(log_fp, "RelTime(Us) Delta debugid arg1 arg2 arg3 arg4 thread cpu command\n\n");
- thread = kd_beg->arg5 & KDBG_THREAD_MASK;
- cpunum = (kd_end->arg5 & KDBG_CPU_MASK) ? 1: 0;
+ thread = kd_beg->arg5;
+ cpunum = CPU_NUMBER(kd_end->timestamp);
for (kd_count = 0, kd_start = kd_beg - 1; (kd_start >= (kd_buf *)my_buffer); kd_start--, kd_count++) {
if (kd_count == MAX_LOG_COUNT)
break;
- if((kd_start->arg5 & KDBG_CPU_MASK) != cpunum)
+ if (CPU_NUMBER(kd_start->timestamp) != cpunum)
continue;
if ((kd_start->debugid & DBG_FUNC_MASK) == DECR_TRAP)
break;
- if((kd_start->arg5 & KDBG_THREAD_MASK) != thread)
+ if (kd_start->arg5 != thread)
break;
}
if (kd_start < (kd_buf *)my_buffer)
kd_start = (kd_buf *)my_buffer;
- thread = kd_end->arg5 & KDBG_THREAD_MASK;
+ thread = kd_end->arg5;
for (kd_stop = kd_end + 1; kd_stop < end_of_sample; kd_stop++) {
if ((kd_stop->debugid & DBG_FUNC_MASK) == DECR_TRAP)
break;
- if((kd_stop->arg5 & KDBG_CPU_MASK) != cpunum)
+ if (CPU_NUMBER(kd_stop->timestamp) != cpunum)
continue;
- if((kd_stop->arg5 & KDBG_THREAD_MASK) != thread)
+ if (kd_stop->arg5 != thread)
break;
}
if (kd_stop >= end_of_sample)
kd_stop = end_of_sample - 1;
- now = (((uint64_t)kd_start->timestamp.tv_sec) << 32) |
- (uint64_t)((unsigned int)(kd_start->timestamp.tv_nsec));
+ now = kd_start->timestamp & KDBG_TIMESTAMP_MASK;
timestamp = ((double)now) / divisor;
for (kd = kd_start; kd <= kd_stop; kd++) {
type = kd->debugid & DBG_FUNC_MASK;
- if (ti = find_thread((kd->arg5 & KDBG_THREAD_MASK), type, type)) {
+ if ((ti = find_thread(kd->arg5, type, type))) {
if (ti->stime >= timestamp)
ti->type = -1;
}
for (kd = kd_start; kd <= kd_stop; kd++) {
int mode;
- thread = kd->arg5 & KDBG_THREAD_MASK;
- cpunum = (kd->arg5 & KDBG_CPU_MASK) ? 1: 0;
+ thread = kd->arg5;
+ cpunum = CPU_NUMBER(kd->timestamp);
debugid = kd->debugid;
type = kd->debugid & DBG_FUNC_MASK;
- now = (((uint64_t)kd->timestamp.tv_sec) << 32) |
- (uint64_t)((unsigned int)(kd->timestamp.tv_nsec));
+ now = kd->timestamp & KDBG_TIMESTAMP_MASK;
timestamp = ((double)now) / divisor;
}
delta = timestamp - last_timestamp;
- if (map = find_thread_map(thread))
+ if ((map = find_thread_map(thread)))
strcpy(command, map->command);
else
command[0] = 0;
mode = 1;
- if (ti = find_thread((kd->arg5 & KDBG_THREAD_MASK), 0, 0)) {
+ if ((ti = find_thread(kd->arg5, 0, 0))) {
if (ti->type == -1 && strcmp(command, "kernel_task"))
mode = 0;
}
case MACH_sched:
case MACH_stkhandoff:
- if (map = find_thread_map(kd->arg2))
+ if ((map = find_thread_map(kd->arg2)))
strcpy(command1, map->command);
else
sprintf(command1, "%-8x", kd->arg2);
- if (ti = find_thread(kd->arg2, 0, 0)) {
+ if ((ti = find_thread(kd->arg2, 0, 0))) {
if (ti->type == -1 && strcmp(command1, "kernel_task"))
p = "U";
else
ti->thread = thread;
ti->type = -1;
- ti->pathptr = (long *)0;
+ ti->pathptr = (long *)NULL;
ti->child_thread = 0;
}
while ( (kd <= kd_stop) && (kd->debugid & DBG_FUNC_MASK) == VFS_LOOKUP)
{
- if (!ti->pathptr) {
+ if (ti->pathptr == NULL) {
ti->arg1 = kd->arg1;
- memset(&ti->pathname[0], 0, (PATHLENGTH + 1));
- sargptr = (long *)&ti->pathname[0];
+ sargptr = ti->pathname;
*sargptr++ = kd->arg2;
*sargptr++ = kd->arg3;
*sargptr++ = kd->arg4;
+ /*
+ * NULL terminate the 'string'
+ */
+ *sargptr = 0;
+
ti->pathptr = sargptr;
} else {
handle.
*/
- if ((long *)sargptr >= (long *)&ti->pathname[PATHLENGTH])
+ if (sargptr >= &ti->pathname[NUMPARMS])
{
kd++;
continue;
if (kd->debugid & DBG_FUNC_START)
{
- (long *)ti->pathptr = (long *)&ti->pathname[PATHLENGTH];
+ ti->pathptr = &ti->pathname[NUMPARMS];
}
else
{
*sargptr++ = kd->arg2;
*sargptr++ = kd->arg3;
*sargptr++ = kd->arg4;
+ /*
+ * NULL terminate the 'string'
+ */
+ *sargptr = 0;
+
ti->pathptr = sargptr;
}
}
kd++;
}
+ p = (char *)ti->pathname;
kd--;
/* print the tail end of the pathname */
- len = strlen(ti->pathname);
+ len = strlen(p);
if (len > 42)
len -= 42;
else
fprintf(log_fp, "%9.1f %8.1f\t\t%-14.14s %-42s %-8x %-8x %d %s\n",
timestamp - start_bias, delta, "VFS_LOOKUP",
- &ti->pathname[len], ti->arg1, thread, cpunum, command);
+ &p[len], ti->arg1, thread, cpunum, command);
last_timestamp = timestamp;
break;
return;
}
for (i = 0; i < MAX_ENTRIES; i++) {
- n = fscanf(fp, "%x%s\n", &code, name);
+ n = fscanf(fp, "%x%127s\n", &code, name);
if (n != 2)
break;
FILE *fp = (FILE *)0;
char tmp_nm_file[128];
char tmpstr[1024];
- int inchr;
+ char inchr;
bzero(tmp_nm_file, 128);
bzero(tmpstr, 1024);
/* Build the temporary nm file path */
- sprintf(tmp_nm_file, "/tmp/knm.out.%d", getpid());
+ strcpy(tmp_nm_file,"/tmp/knm.out.XXXXXX");
+ if (!mktemp(tmp_nm_file)) {
+ fprintf(stderr, "Error in mktemp call\n");
+ return;
+ }
/* Build the nm command and create a tmp file with the output*/
sprintf (tmpstr, "/usr/bin/nm -f -n -s __TEXT __text %s > %s",
for (i=0; i<kern_sym_count; i++)
{
bzero(tmpstr, 1024);
- if (fscanf(fp, "%x %c %s", &kern_sym_tbl[i].k_sym_addr, &inchr, tmpstr) != 3)
+ if (fscanf(fp, "%lx %c %s", &kern_sym_tbl[i].k_sym_addr, &inchr, tmpstr) != 3)
break;
else
{
len = max_len - 8;
memcpy(pcstring, kern_sym_tbl[ret].k_sym_name, len);
- sprintf(&pcstring[len], "+0x%-5x", pc - kern_sym_tbl[ret].k_sym_addr);
+ sprintf(&pcstring[len], "+0x%-5lx", pc - kern_sym_tbl[ret].k_sym_addr);
return (pcstring);
}
projects / apple / system_cmds.git / blobdiff