#include <stdio.h>
#include <stdlib.h>
#include <string.h>
+#include <sys/capability.h>
+#include <sys/prctl.h>
#include <sys/resource.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/wait.h>
#include <unistd.h>
-#include <sys/capability.h>
-#include <sys/prctl.h>
#include <cutils/properties.h>
#define PSTORE_LAST_KMSG "/sys/fs/pstore/console-ramoops"
+#define TOMBSTONE_DIR "/data/tombstones"
+#define TOMBSTONE_FILE_PREFIX TOMBSTONE_DIR "/tombstone_"
+/* Can accomodate a tombstone number up to 9999. */
+#define TOMBSTONE_MAX_LEN (sizeof(TOMBSTONE_FILE_PREFIX) + 4)
+#define NUM_TOMBSTONES 10
+
+typedef struct {
+ char name[TOMBSTONE_MAX_LEN];
+ int fd;
+} tombstone_data_t;
+
+static tombstone_data_t tombstone_data[NUM_TOMBSTONES];
+
+/* Get the fds of any tombstone that was modified in the last half an hour. */
+static void get_tombstone_fds(tombstone_data_t data[NUM_TOMBSTONES]) {
+ time_t thirty_minutes_ago = time(NULL) - 60*30;
+ for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
+ snprintf(data[i].name, sizeof(data[i].name), "%s%02zu", TOMBSTONE_FILE_PREFIX, i);
+ int fd = open(data[i].name, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
+ struct stat st;
+ if (fstat(fd, &st) == 0 && S_ISREG(st.st_mode) &&
+ (time_t) st.st_mtime >= thirty_minutes_ago) {
+ data[i].fd = fd;
+ } else {
+ close(fd);
+ data[i].fd = -1;
+ }
+ }
+}
+
/* dumps the current system state to stdout */
static void dumpstate() {
time_t now = time(NULL);
run_command("EVENT LOG", 20, "logcat", "-b", "events", "-v", "threadtime", "-d", "*:v", NULL);
run_command("RADIO LOG", 20, "logcat", "-b", "radio", "-v", "threadtime", "-d", "*:v", NULL);
-
/* show the traces we collected in main(), if that was done */
if (dump_traces_path != NULL) {
dump_file("VM TRACES JUST NOW", dump_traces_path);
property_get("dalvik.vm.stack-trace-file", anr_traces_path, "");
if (!anr_traces_path[0]) {
printf("*** NO VM TRACES FILE DEFINED (dalvik.vm.stack-trace-file)\n\n");
- } else if (stat(anr_traces_path, &st)) {
- printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
} else {
- dump_file("VM TRACES AT LAST ANR", anr_traces_path);
+ int fd = open(anr_traces_path, O_RDONLY | O_CLOEXEC | O_NOFOLLOW);
+ if (fd < 0) {
+ printf("*** NO ANR VM TRACES FILE (%s): %s\n\n", anr_traces_path, strerror(errno));
+ } else {
+ dump_file_from_fd("VM TRACES AT LAST ANR", anr_traces_path, fd);
+ }
}
/* slow traces for slow operations */
}
}
+ int dumped = 0;
+ for (size_t i = 0; i < NUM_TOMBSTONES; i++) {
+ if (tombstone_data[i].fd != -1) {
+ dumped = 1;
+ dump_file_from_fd("TOMBSTONE", tombstone_data[i].name, tombstone_data[i].fd);
+ tombstone_data[i].fd = -1;
+ }
+ }
+ if (!dumped) {
+ printf("*** NO TOMBSTONES to dump in %s\n\n", TOMBSTONE_DIR);
+ }
+
dump_file("NETWORK DEV INFO", "/proc/net/dev");
dump_file("QTAGUID NETWORK INTERFACES INFO", "/proc/net/xt_qtaguid/iface_stat_all");
dump_file("QTAGUID NETWORK INTERFACES INFO (xt)", "/proc/net/xt_qtaguid/iface_stat_fmt");
return -1;
}
+ /* Get the tombstone fds here while we are running as root. */
+ get_tombstone_fds(tombstone_data);
+
/* switch to non-root user and group */
gid_t groups[] = { AID_LOG, AID_SDCARD_R, AID_SDCARD_RW,
AID_MOUNT, AID_INET, AID_NET_BW_STATS };
typedef void (for_each_userid_func)(int);
/* prints the contents of a file */
-int dump_file(const char *title, const char* path);
+int dump_file(const char *title, const char *path);
+
+/* prints the contents of the fd */
+int dump_file_from_fd(const char *title, const char *path, int fd);
/* forks a command and waits for it to finish -- terminate args with NULL */
int run_command(const char *title, int timeout_seconds, const char *command, ...);
void dump_route_tables();
/* Play a sound via Stagefright */
-void play_sound(const char* path);
+void play_sound(const char *path);
/* Implemented by libdumpstate_board to dump board-specific info */
void dumpstate_board();