tequilaOS/platform_system_core
2
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

InitFatalReboot: Panic the system if init_fatal_panic is "true"

Browse source 
While handling the fatal signals and abort, exits from the signal
handler to panic the system if "androidboot.init_fatal_panic" in cmdline
is configured as "true".

Bug: 146818493
Change-Id: I59fffb7598ce981383ae24961a97fd2fd8e8d64e
This commit is contained in:
Woody Lin 2019-12-27 18:14:13 +08:00
parent 70768af0fe
commit 6bbfa26813
1 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

7
init/reboot_utils.cpp
View file

@ -34,12 +34,16 @@ namespace android {
namespace init {
static std::string init_fatal_reboot_target = "bootloader";
static bool init_fatal_panic = false;
void SetFatalRebootTarget() {
std::string cmdline;
android::base::ReadFileToString("/proc/cmdline", &cmdline);
cmdline = android::base::Trim(cmdline);
const char kInitFatalPanicString[] = "androidboot.init_fatal_panic=true";
init_fatal_panic = cmdline.find(kInitFatalPanicString) != std::string::npos;
const char kRebootTargetString[] = "androidboot.init_fatal_reboot_target=";
auto start_pos = cmdline.find(kRebootTargetString);
if (start_pos == std::string::npos) {
@ -133,6 +137,9 @@ void __attribute__((noreturn)) InitFatalReboot(int signal_number) {
for (size_t i = 0; i < backtrace->NumFrames(); i++) {
LOG(ERROR) << backtrace->FormatFrameData(i);
}
if (init_fatal_panic) {
_exit(signal_number);
}
RebootSystem(ANDROID_RB_RESTART2, init_fatal_reboot_target);
}