569 lines
16 KiB
C++
569 lines
16 KiB
C++
// Copyright 2006 The Android Open Source Project
|
|
|
|
#include <cutils/logger.h>
|
|
#include <cutils/logd.h>
|
|
#include <cutils/sockets.h>
|
|
#include <cutils/logprint.h>
|
|
#include <cutils/event_tag_map.h>
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <stdarg.h>
|
|
#include <string.h>
|
|
#include <unistd.h>
|
|
#include <fcntl.h>
|
|
#include <time.h>
|
|
#include <errno.h>
|
|
#include <assert.h>
|
|
#include <ctype.h>
|
|
#include <sys/socket.h>
|
|
#include <sys/stat.h>
|
|
#include <arpa/inet.h>
|
|
|
|
#define DEFAULT_LOG_ROTATE_SIZE_KBYTES 16
|
|
#define DEFAULT_MAX_ROTATED_LOGS 4
|
|
|
|
static AndroidLogFormat * g_logformat;
|
|
|
|
/* logd prefixes records with a length field */
|
|
#define RECORD_LENGTH_FIELD_SIZE_BYTES sizeof(uint32_t)
|
|
|
|
#define LOG_FILE_DIR "/dev/log/"
|
|
|
|
|
|
namespace android {
|
|
|
|
/* Global Variables */
|
|
|
|
static const char * g_outputFileName = NULL;
|
|
static int g_logRotateSizeKBytes = 0; // 0 means "no log rotation"
|
|
static int g_maxRotatedLogs = DEFAULT_MAX_ROTATED_LOGS; // 0 means "unbounded"
|
|
static int g_outFD = -1;
|
|
static off_t g_outByteCount = 0;
|
|
static int g_isBinary = 0;
|
|
static int g_printBinary = 0;
|
|
|
|
static EventTagMap* g_eventTagMap = NULL;
|
|
|
|
static int openLogFile (const char *pathname)
|
|
{
|
|
return open(g_outputFileName, O_WRONLY | O_APPEND | O_CREAT, S_IRUSR | S_IWUSR);
|
|
}
|
|
|
|
static void rotateLogs()
|
|
{
|
|
int err;
|
|
|
|
// Can't rotate logs if we're not outputting to a file
|
|
if (g_outputFileName == NULL) {
|
|
return;
|
|
}
|
|
|
|
close(g_outFD);
|
|
|
|
for (int i = g_maxRotatedLogs ; i > 0 ; i--) {
|
|
char *file0, *file1;
|
|
|
|
asprintf(&file1, "%s.%d", g_outputFileName, i);
|
|
|
|
if (i - 1 == 0) {
|
|
asprintf(&file0, "%s", g_outputFileName);
|
|
} else {
|
|
asprintf(&file0, "%s.%d", g_outputFileName, i - 1);
|
|
}
|
|
|
|
err = rename (file0, file1);
|
|
|
|
if (err < 0 && errno != ENOENT) {
|
|
perror("while rotating log files");
|
|
}
|
|
|
|
free(file1);
|
|
free(file0);
|
|
}
|
|
|
|
g_outFD = openLogFile (g_outputFileName);
|
|
|
|
if (g_outFD < 0) {
|
|
perror ("couldn't open output file");
|
|
exit(-1);
|
|
}
|
|
|
|
g_outByteCount = 0;
|
|
|
|
}
|
|
|
|
void printBinary(struct logger_entry *buf)
|
|
{
|
|
size_t size = sizeof(logger_entry) + buf->len;
|
|
int ret;
|
|
|
|
do {
|
|
ret = write(g_outFD, buf, size);
|
|
} while (ret < 0 && errno == EINTR);
|
|
}
|
|
|
|
static void processBuffer(struct logger_entry *buf)
|
|
{
|
|
int bytesWritten;
|
|
int err;
|
|
AndroidLogEntry entry;
|
|
char binaryMsgBuf[1024];
|
|
|
|
if (g_isBinary) {
|
|
err = android_log_processBinaryLogBuffer(buf, &entry, g_eventTagMap,
|
|
binaryMsgBuf, sizeof(binaryMsgBuf));
|
|
//printf(">>> pri=%d len=%d msg='%s'\n",
|
|
// entry.priority, entry.messageLen, entry.message);
|
|
} else {
|
|
err = android_log_processLogBuffer(buf, &entry);
|
|
}
|
|
if (err < 0)
|
|
goto error;
|
|
|
|
bytesWritten = android_log_filterAndPrintLogLine(
|
|
g_logformat, g_outFD, &entry);
|
|
|
|
if (bytesWritten < 0) {
|
|
perror("output error");
|
|
exit(-1);
|
|
}
|
|
|
|
g_outByteCount += bytesWritten;
|
|
|
|
if (g_logRotateSizeKBytes > 0
|
|
&& (g_outByteCount / 1024) >= g_logRotateSizeKBytes
|
|
) {
|
|
rotateLogs();
|
|
}
|
|
|
|
error:
|
|
//fprintf (stderr, "Error processing record\n");
|
|
return;
|
|
}
|
|
|
|
static void readLogLines(int logfd)
|
|
{
|
|
while (1) {
|
|
unsigned char buf[LOGGER_ENTRY_MAX_LEN + 1] __attribute__((aligned(4)));
|
|
struct logger_entry *entry = (struct logger_entry *) buf;
|
|
int ret;
|
|
|
|
ret = read(logfd, entry, LOGGER_ENTRY_MAX_LEN);
|
|
if (ret < 0) {
|
|
if (errno == EINTR)
|
|
continue;
|
|
if (errno == EAGAIN)
|
|
break;
|
|
perror("logcat read");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
else if (!ret) {
|
|
fprintf(stderr, "read: Unexpected EOF!\n");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
/* NOTE: driver guarantees we read exactly one full entry */
|
|
|
|
entry->msg[entry->len] = '\0';
|
|
|
|
if (g_printBinary) {
|
|
printBinary(entry);
|
|
} else {
|
|
(void) processBuffer(entry);
|
|
}
|
|
}
|
|
}
|
|
|
|
static int clearLog(int logfd)
|
|
{
|
|
return ioctl(logfd, LOGGER_FLUSH_LOG);
|
|
}
|
|
|
|
/* returns the total size of the log's ring buffer */
|
|
static int getLogSize(int logfd)
|
|
{
|
|
return ioctl(logfd, LOGGER_GET_LOG_BUF_SIZE);
|
|
}
|
|
|
|
/* returns the readable size of the log's ring buffer (that is, amount of the log consumed) */
|
|
static int getLogReadableSize(int logfd)
|
|
{
|
|
return ioctl(logfd, LOGGER_GET_LOG_LEN);
|
|
}
|
|
|
|
static void setupOutput()
|
|
{
|
|
|
|
if (g_outputFileName == NULL) {
|
|
g_outFD = STDOUT_FILENO;
|
|
|
|
} else {
|
|
struct stat statbuf;
|
|
|
|
g_outFD = openLogFile (g_outputFileName);
|
|
|
|
if (g_outFD < 0) {
|
|
perror ("couldn't open output file");
|
|
exit(-1);
|
|
}
|
|
|
|
fstat(g_outFD, &statbuf);
|
|
|
|
g_outByteCount = statbuf.st_size;
|
|
}
|
|
}
|
|
|
|
static void show_help(const char *cmd)
|
|
{
|
|
fprintf(stderr,"Usage: %s [options] [filterspecs]\n", cmd);
|
|
|
|
fprintf(stderr, "options include:\n"
|
|
" -s Set default filter to silent.\n"
|
|
" Like specifying filterspec '*:s'\n"
|
|
" -f <filename> Log to file. Default to stdout\n"
|
|
" -r [<kbytes>] Rotate log every kbytes. (16 if unspecified). Requires -f\n"
|
|
" -n <count> Sets max number of rotated logs to <count>, default 4\n"
|
|
" -v <format> Sets the log print format, where <format> is one of:\n\n"
|
|
" brief process tag thread raw time threadtime long\n\n"
|
|
" -c clear (flush) the entire log and exit\n"
|
|
" -d dump the log and then exit (don't block)\n"
|
|
" -g get the size of the log's ring buffer and exit\n"
|
|
" -b <buffer> request alternate ring buffer\n"
|
|
" ('main' (default), 'radio', 'events')\n"
|
|
" -B output the log in binary");
|
|
|
|
|
|
fprintf(stderr,"\nfilterspecs are a series of \n"
|
|
" <tag>[:priority]\n\n"
|
|
"where <tag> is a log component tag (or * for all) and priority is:\n"
|
|
" V Verbose\n"
|
|
" D Debug\n"
|
|
" I Info\n"
|
|
" W Warn\n"
|
|
" E Error\n"
|
|
" F Fatal\n"
|
|
" S Silent (supress all output)\n"
|
|
"\n'*' means '*:d' and <tag> by itself means <tag>:v\n"
|
|
"\nIf not specified on the commandline, filterspec is set from ANDROID_LOG_TAGS.\n"
|
|
"If no filterspec is found, filter defaults to '*:I'\n"
|
|
"\nIf not specified with -v, format is set from ANDROID_PRINTF_LOG\n"
|
|
"or defaults to \"brief\"\n\n");
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
} /* namespace android */
|
|
|
|
static int setLogFormat(const char * formatString)
|
|
{
|
|
static AndroidLogPrintFormat format;
|
|
|
|
format = android_log_formatFromString(formatString);
|
|
|
|
if (format == FORMAT_OFF) {
|
|
// FORMAT_OFF means invalid string
|
|
return -1;
|
|
}
|
|
|
|
android_log_setPrintFormat(g_logformat, format);
|
|
|
|
return 0;
|
|
}
|
|
|
|
extern "C" void logprint_run_tests(void);
|
|
|
|
int main (int argc, char **argv)
|
|
{
|
|
int logfd;
|
|
int err;
|
|
int hasSetLogFormat = 0;
|
|
int clearLog = 0;
|
|
int getLogSize = 0;
|
|
int mode = O_RDONLY;
|
|
char *log_device = strdup("/dev/"LOGGER_LOG_MAIN);
|
|
const char *forceFilters = NULL;
|
|
|
|
g_logformat = android_log_format_new();
|
|
|
|
if (argc == 2 && 0 == strcmp(argv[1], "--test")) {
|
|
logprint_run_tests();
|
|
exit(0);
|
|
}
|
|
|
|
if (argc == 2 && 0 == strcmp(argv[1], "--help")) {
|
|
android::show_help(argv[0]);
|
|
exit(0);
|
|
}
|
|
|
|
for (;;) {
|
|
int ret;
|
|
|
|
ret = getopt(argc, argv, "cdgsQf:r::n:v:b:B");
|
|
|
|
if (ret < 0) {
|
|
break;
|
|
}
|
|
|
|
switch(ret) {
|
|
case 's':
|
|
// default to all silent
|
|
android_log_addFilterRule(g_logformat, "*:s");
|
|
break;
|
|
|
|
case 'c':
|
|
clearLog = 1;
|
|
mode = O_WRONLY;
|
|
break;
|
|
|
|
case 'd':
|
|
mode |= O_NONBLOCK;
|
|
break;
|
|
|
|
case 'g':
|
|
getLogSize = 1;
|
|
break;
|
|
|
|
case 'b':
|
|
free(log_device);
|
|
log_device =
|
|
(char*) malloc(strlen(LOG_FILE_DIR) + strlen(optarg) + 1);
|
|
strcpy(log_device, LOG_FILE_DIR);
|
|
strcat(log_device, optarg);
|
|
|
|
android::g_isBinary = (strcmp(optarg, "events") == 0);
|
|
break;
|
|
|
|
case 'B':
|
|
android::g_printBinary = 1;
|
|
break;
|
|
|
|
case 'f':
|
|
// redirect output to a file
|
|
|
|
android::g_outputFileName = optarg;
|
|
|
|
break;
|
|
|
|
case 'r':
|
|
if (optarg == NULL) {
|
|
android::g_logRotateSizeKBytes
|
|
= DEFAULT_LOG_ROTATE_SIZE_KBYTES;
|
|
} else {
|
|
long logRotateSize;
|
|
char *lastDigit;
|
|
|
|
if (!isdigit(optarg[0])) {
|
|
fprintf(stderr,"Invalid parameter to -r\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
android::g_logRotateSizeKBytes = atoi(optarg);
|
|
}
|
|
break;
|
|
|
|
case 'n':
|
|
if (!isdigit(optarg[0])) {
|
|
fprintf(stderr,"Invalid parameter to -r\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
android::g_maxRotatedLogs = atoi(optarg);
|
|
break;
|
|
|
|
case 'v':
|
|
err = setLogFormat (optarg);
|
|
if (err < 0) {
|
|
fprintf(stderr,"Invalid parameter to -v\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
hasSetLogFormat = 1;
|
|
break;
|
|
|
|
case 'Q':
|
|
/* this is a *hidden* option used to start a version of logcat */
|
|
/* in an emulated device only. it basically looks for androidboot.logcat= */
|
|
/* on the kernel command line. If something is found, it extracts a log filter */
|
|
/* and uses it to run the program. If nothing is found, the program should */
|
|
/* quit immediately */
|
|
#define KERNEL_OPTION "androidboot.logcat="
|
|
#define CONSOLE_OPTION "androidboot.console="
|
|
{
|
|
int fd;
|
|
char* logcat;
|
|
char* console;
|
|
int force_exit = 1;
|
|
static char cmdline[1024];
|
|
|
|
fd = open("/proc/cmdline", O_RDONLY);
|
|
if (fd >= 0) {
|
|
int n = read(fd, cmdline, sizeof(cmdline)-1 );
|
|
if (n < 0) n = 0;
|
|
cmdline[n] = 0;
|
|
close(fd);
|
|
} else {
|
|
cmdline[0] = 0;
|
|
}
|
|
|
|
logcat = strstr( cmdline, KERNEL_OPTION );
|
|
console = strstr( cmdline, CONSOLE_OPTION );
|
|
if (logcat != NULL) {
|
|
char* p = logcat + sizeof(KERNEL_OPTION)-1;;
|
|
char* q = strpbrk( p, " \t\n\r" );;
|
|
|
|
if (q != NULL)
|
|
*q = 0;
|
|
|
|
forceFilters = p;
|
|
force_exit = 0;
|
|
}
|
|
/* if nothing found or invalid filters, exit quietly */
|
|
if (force_exit)
|
|
exit(0);
|
|
|
|
/* redirect our output to the emulator console */
|
|
if (console) {
|
|
char* p = console + sizeof(CONSOLE_OPTION)-1;
|
|
char* q = strpbrk( p, " \t\n\r" );
|
|
char devname[64];
|
|
int len;
|
|
|
|
if (q != NULL) {
|
|
len = q - p;
|
|
} else
|
|
len = strlen(p);
|
|
|
|
len = snprintf( devname, sizeof(devname), "/dev/%.*s", len, p );
|
|
fprintf(stderr, "logcat using %s (%d)\n", devname, len);
|
|
if (len < (int)sizeof(devname)) {
|
|
fd = open( devname, O_WRONLY );
|
|
if (fd >= 0) {
|
|
dup2(fd, 1);
|
|
dup2(fd, 2);
|
|
close(fd);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
fprintf(stderr,"Unrecognized Option\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (android::g_logRotateSizeKBytes != 0
|
|
&& android::g_outputFileName == NULL
|
|
) {
|
|
fprintf(stderr,"-r requires -f as well\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
|
|
android::setupOutput();
|
|
|
|
if (hasSetLogFormat == 0) {
|
|
const char* logFormat = getenv("ANDROID_PRINTF_LOG");
|
|
|
|
if (logFormat != NULL) {
|
|
err = setLogFormat(logFormat);
|
|
|
|
if (err < 0) {
|
|
fprintf(stderr, "invalid format in ANDROID_PRINTF_LOG '%s'\n",
|
|
logFormat);
|
|
}
|
|
}
|
|
}
|
|
|
|
if (forceFilters) {
|
|
err = android_log_addFilterString(g_logformat, forceFilters);
|
|
if (err < 0) {
|
|
fprintf (stderr, "Invalid filter expression in -logcat option\n");
|
|
exit(0);
|
|
}
|
|
} else if (argc == optind) {
|
|
// Add from environment variable
|
|
char *env_tags_orig = getenv("ANDROID_LOG_TAGS");
|
|
|
|
if (env_tags_orig != NULL) {
|
|
err = android_log_addFilterString(g_logformat, env_tags_orig);
|
|
|
|
if (err < 0) {
|
|
fprintf(stderr, "Invalid filter expression in"
|
|
" ANDROID_LOG_TAGS\n");
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
}
|
|
} else {
|
|
// Add from commandline
|
|
for (int i = optind ; i < argc ; i++) {
|
|
err = android_log_addFilterString(g_logformat, argv[i]);
|
|
|
|
if (err < 0) {
|
|
fprintf (stderr, "Invalid filter expression '%s'\n", argv[i]);
|
|
android::show_help(argv[0]);
|
|
exit(-1);
|
|
}
|
|
}
|
|
}
|
|
|
|
logfd = open(log_device, mode);
|
|
if (logfd < 0) {
|
|
fprintf(stderr, "Unable to open log device '%s': %s\n",
|
|
log_device, strerror(errno));
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
if (clearLog) {
|
|
int ret;
|
|
ret = android::clearLog(logfd);
|
|
if (ret) {
|
|
perror("ioctl");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
if (getLogSize) {
|
|
int size, readable;
|
|
|
|
size = android::getLogSize(logfd);
|
|
if (size < 0) {
|
|
perror("ioctl");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
readable = android::getLogReadableSize(logfd);
|
|
if (readable < 0) {
|
|
perror("ioctl");
|
|
exit(EXIT_FAILURE);
|
|
}
|
|
|
|
printf("ring buffer is %dKb (%dKb consumed), "
|
|
"max entry is %db, max payload is %db\n",
|
|
size / 1024, readable / 1024,
|
|
(int) LOGGER_ENTRY_MAX_LEN, (int) LOGGER_ENTRY_MAX_PAYLOAD);
|
|
return 0;
|
|
}
|
|
|
|
//LOG_EVENT_INT(10, 12345);
|
|
//LOG_EVENT_LONG(11, 0x1122334455667788LL);
|
|
//LOG_EVENT_STRING(0, "whassup, doc?");
|
|
|
|
if (android::g_isBinary)
|
|
android::g_eventTagMap = android_openEventTagMap(EVENT_TAG_MAP_FILE);
|
|
|
|
android::readLogLines(logfd);
|
|
|
|
return 0;
|
|
}
|