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Commit 6bbfa268 authored by Woody Lin's avatar Woody Lin
Browse files

InitFatalReboot: Panic the system if init_fatal_panic is "true" 

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
parent 70768af0

init/reboot_utils.cpp

+7 −0
Original line number Diff line number Diff line
@@ -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);

}