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Update collect log logic

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This commit is contained in:
topjohnwu 2020-05-10 00:30:11 -07:00
parent 3733b589ac
commit 0f8f4e361b
1 changed files with 27 additions and 19 deletions
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46
native/jni/core/bootstages.cpp
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@ -189,18 +189,23 @@ void unlock_blocks() {
}
}
static bool log_dump = false;
static void dump_logs() {
if (log_dump)
return;
int test = exec_command_sync("/system/bin/logcat", "-d", "-f", "/dev/null");
chmod("/dev/null", 0666);
if (test != 0)
return;
rename(LOGFILE, LOGFILE ".bak");
log_dump = true;
static void collect_logs(bool reset) {
static bool running = false;
static pthread_mutex_t log_lock = PTHREAD_MUTEX_INITIALIZER;
{
mutex_guard lock(log_lock);
if (running)
return;
int test = exec_command_sync("/system/bin/logcat", "-d", "-f", "/dev/null");
chmod("/dev/null", 0666);
if (test != 0)
return;
running = true;
}
if (reset)
rename(LOGFILE, LOGFILE ".bak");
// Start a daemon thread and wait indefinitely
new_daemon_thread([]() -> void {
new_daemon_thread([]{
int fd = xopen(LOGFILE, O_WRONLY | O_APPEND | O_CREAT | O_CLOEXEC, 0644);
exec_t exec {
.fd = fd,
@ -209,7 +214,8 @@ static void dump_logs() {
int pid = exec_command(exec, "/system/bin/logcat", "-s", "Magisk");
close(fd);
if (pid < 0) {
log_dump = false;
mutex_guard lock(log_lock);
running = false;
} else {
waitpid(pid, nullptr, 0);
}
@ -220,7 +226,7 @@ static void dump_logs() {
* Entry points *
****************/
[[noreturn]] static void unblock_boot_process() {
[[noreturn]] static void exit_post_fs_data() {
close(xopen(UNBLOCKFILE, O_RDONLY | O_CREAT, 0));
pthread_exit(nullptr);
}
@ -234,9 +240,9 @@ void post_fs_data(int client) {
xmount(nullptr, "/", nullptr, MS_REMOUNT | MS_RDONLY, nullptr);
if (!check_data())
unblock_boot_process();
exit_post_fs_data();
dump_logs();
collect_logs(true);
LOGI("** post-fs-data mode running\n");
@ -249,12 +255,12 @@ void post_fs_data(int client) {
* will cause bootloops on FBE devices. */
LOGE(SECURE_DIR " is not present, abort...");
no_secure_dir = true;
unblock_boot_process();
exit_post_fs_data();
}
if (!magisk_env()) {
LOGE("* Magisk environment setup incomplete, abort\n");
unblock_boot_process();
exit_post_fs_data();
}
if (getprop("persist.sys.safemode", true) == "1") {
@ -272,7 +278,7 @@ void post_fs_data(int client) {
// We still want to do magic mount because root itself might need it
magic_mount();
pfs_done = true;
unblock_boot_process();
exit_post_fs_data();
}
void late_start(int client) {
@ -281,7 +287,7 @@ void late_start(int client) {
write_int(client, 0);
close(client);
dump_logs();
collect_logs(false);
if (no_secure_dir) {
// It's safe to create the folder at this point if the system didn't create it
@ -313,6 +319,8 @@ void boot_complete(int client) {
write_int(client, 0);
close(client);
collect_logs(false);
if (!pfs_done || safe_mode)
return;