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Bring back log dumping

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This commit is contained in:
topjohnwu 2019-02-14 04:27:30 -05:00
parent b106d1c501
commit 014105f0a0
1 changed files with 20 additions and 0 deletions
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20
native/jni/core/bootstages.cpp
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@ -636,6 +636,22 @@ void unlock_blocks() {
close(dev);
}
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");
int fd = xopen(LOGFILE, O_WRONLY | O_APPEND | O_CREAT | O_CLOEXEC, 0644);
exec_t exec { .fd = fd };
exec_command(exec, "/system/bin/logcat", "-s", "Magisk");
log_dump = true;
close(fd);
}
/****************
* Entry points *
****************/
@ -658,6 +674,8 @@ void post_fs_data(int client) {
if (!check_data())
unblock_boot_process();
dump_logs();
LOGI("** post-fs-data mode running\n");
// Unlock all blocks for rw
@ -781,6 +799,8 @@ void late_start(int client) {
write_int(client, 0);
close(client);
dump_logs();
if (access(SECURE_DIR, F_OK) != 0) {
// It's safe to create the folder at this point if the system didn't create it
xmkdir(SECURE_DIR, 0700);