/*
* This function is protected against re-entrancy.
*/
void die(const char *str, struct pt_regs *regs, int err)
{
int ret;
unsigned long flags;
raw_spin_lock_irqsave(&die_lock, flags);
oops_enter();
console_verbose();
bust_spinlocks(1);
ret = __die(str, err, regs);
if (regs && kexec_should_crash(current))
crash_kexec(regs);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
oops_exit();
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
raw_spin_unlock_irqrestore(&die_lock, flags);
if (ret != NOTIFY_STOP)
do_exit(SIGSEGV);
}
void fiq_die_handler(unsigned int savepc)
{
/*struct pt_regs r;*/
console_verbose();
printk("PC=0x%08x\n", savepc);
/*die("FIQ", &r, 0);*/
}
void __init setup_arch(char **cmdline_p)
{
*cmdline_p = cmd_line;
console_verbose();
unflatten_device_tree();
/* NOTE I think that this function is not necessary to call */
/* irq_early_init(); */
setup_cpuinfo();
microblaze_cache_init();
setup_memory();
#ifdef CONFIG_EARLY_PRINTK
/* remap early console to virtual address */
remap_early_printk();
#endif
xilinx_pci_init();
#if defined(CONFIG_SELFMOD_INTC) || defined(CONFIG_SELFMOD_TIMER)
printk(KERN_NOTICE "Self modified code enable\n");
#endif
#ifdef CONFIG_VT
#if defined(CONFIG_XILINX_CONSOLE)
conswitchp = &xil_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
#endif
}
/*
* bad_mode handles the impossible case in the exception vector.
*/
asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)
{
siginfo_t info;
void __user *pc = (void __user *)instruction_pointer(regs);
console_verbose();
#ifdef CONFIG_MEDIATEK_SOLUTION
/*
* * reason is defined in entry.S, 3 means BAD_ERROR,
* * which would be triggered by async abort
*/
if ((reason == 3) && async_abort_handler)
async_abort_handler(regs, async_abort_priv);
#endif
pr_crit("Bad mode in %s handler detected, code 0x%08x\n",
handler[reason], esr);
__show_regs(regs);
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
info.si_addr = pc;
arm64_notify_die("Oops - bad mode", regs, &info, 0);
}
unsigned __kprobes long oops_begin(void)
{
int cpu;
unsigned long flags;
trace_hw_branch_oops();
oops_enter();
raw_local_irq_save(flags);
cpu = smp_processor_id();
if (!__raw_spin_trylock(&die_lock)) {
if (cpu == die_owner)
;
else
__raw_spin_lock(&die_lock);
}
die_nest_count++;
die_owner = cpu;
console_verbose();
bust_spinlocks(1);
return flags;
}
unsigned __kprobes long oops_begin(void)
{
int cpu;
unsigned long flags;
/* notify the hw-branch tracer so it may disable tracing and
add the last trace to the trace buffer -
the earlier this happens, the more useful the trace. */
trace_hw_branch_oops();
oops_enter();
/* racy, but better than risking deadlock. */
raw_local_irq_save(flags);
cpu = smp_processor_id();
if (!arch_spin_trylock(&die_lock)) {
if (cpu == die_owner)
/* nested oops. should stop eventually */;
else
arch_spin_lock(&die_lock);
}
die_nest_count++;
die_owner = cpu;
console_verbose();
bust_spinlocks(1);
return flags;
}
void __init setup_arch(char **cmdline_p)
{
*cmdline_p = boot_command_line;
console_verbose();
unflatten_device_tree();
setup_cpuinfo();
microblaze_cache_init();
setup_memory();
#ifdef CONFIG_EARLY_PRINTK
/* remap early console to virtual address */
remap_early_printk();
#endif
xilinx_pci_init();
#if defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
}
void __init setup_arch(char **cmdline_p)
{
*cmdline_p = cmd_line;
console_verbose();
unflatten_device_tree();
setup_cpuinfo();
microblaze_cache_init();
setup_memory();
#ifdef CONFIG_EARLY_PRINTK
/* */
remap_early_printk();
#endif
xilinx_pci_init();
#if defined(CONFIG_SELFMOD_INTC) || defined(CONFIG_SELFMOD_TIMER)
printk(KERN_NOTICE "Self modified code enable\n");
#endif
#ifdef CONFIG_VT
#if defined(CONFIG_XILINX_CONSOLE)
conswitchp = &xil_con;
#elif defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
#endif
}
void die(struct pt_regs *regs, const char *str)
{
static int die_counter;
oops_enter();
lgr_info_log();
debug_stop_all();
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
printk("%s: %04x [#%d] ", str, regs->int_code & 0xffff, ++die_counter);
#ifdef CONFIG_PREEMPT
printk("PREEMPT ");
#endif
#ifdef CONFIG_SMP
printk("SMP ");
#endif
#ifdef CONFIG_DEBUG_PAGEALLOC
printk("DEBUG_PAGEALLOC");
#endif
printk("\n");
notify_die(DIE_OOPS, str, regs, 0, regs->int_code & 0xffff, SIGSEGV);
print_modules();
show_regs(regs);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
spin_unlock_irq(&die_lock);
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception: panic_on_oops");
oops_exit();
do_exit(SIGSEGV);
}
void NORET_TYPE die(const char *str, struct pt_regs *regs, long err)
{
static int die_counter;
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
printk(KERN_ALERT "Oops: %s, sig: %ld [#%d]\n",
str, err, ++die_counter);
printk(KERN_EMERG);
#ifdef CONFIG_PREEMPT
printk(KERN_CONT "PREEMPT ");
#endif
#ifdef CONFIG_FRAME_POINTER
printk(KERN_CONT "FRAME_POINTER ");
#endif
if (current_cpu_data.features & AVR32_FEATURE_OCD) {
unsigned long did = ocd_read(DID);
printk(KERN_CONT "chip: 0x%03lx:0x%04lx rev %lu\n",
(did >> 1) & 0x7ff,
(did >> 12) & 0x7fff,
(did >> 28) & 0xf);
} else {
asmlinkage void double_fault_c(struct pt_regs *fp)
{
console_verbose();
oops_in_progress = 1;
#ifdef CONFIG_DEBUG_VERBOSE
printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n");
#ifdef CONFIG_DEBUG_DOUBLEFAULT_PRINT
if (((long)fp->seqstat & SEQSTAT_EXCAUSE) == VEC_UNCOV) {
unsigned int cpu = smp_processor_id();
char buf[150];
decode_address(buf, cpu_pda[cpu].retx);
printk(KERN_EMERG "While handling exception (EXCAUSE = 0x%x) at %s:\n",
(unsigned int)cpu_pda[cpu].seqstat & SEQSTAT_EXCAUSE, buf);
decode_address(buf, cpu_pda[cpu].dcplb_fault_addr);
printk(KERN_NOTICE " DCPLB_FAULT_ADDR: %s\n", buf);
decode_address(buf, cpu_pda[cpu].icplb_fault_addr);
printk(KERN_NOTICE " ICPLB_FAULT_ADDR: %s\n", buf);
decode_address(buf, fp->retx);
printk(KERN_NOTICE "The instruction at %s caused a double exception\n", buf);
} else
#endif
{
dump_bfin_process(fp);
dump_bfin_mem(fp);
show_regs(fp);
}
#endif
panic("Double Fault - unrecoverable event\n");
}
void __noreturn die(const char *str, struct pt_regs *regs,
long err, unsigned long addr)
{
static int die_counter;
oops_enter();
spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
pr_err("%s: err %04lx (%s) addr %08lx [#%d]\n", str, err & 0xffff,
trap_name(err & 0xffff), addr, ++die_counter);
print_modules();
show_regs(regs);
pr_err("Process: %s (pid: %d, stack limit = %p)\n", current->comm,
task_pid_nr(current), task_stack_page(current) + THREAD_SIZE);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
if (kexec_should_crash(current))
crash_kexec(regs);
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
spin_unlock_irq(&die_lock);
oops_exit();
do_exit(SIGSEGV);
}
/*
* This function is protected against re-entrancy.
*/
void die(const char *str, struct pt_regs *regs, int err)
{
struct thread_info *thread = current_thread_info();
int ret;
oops_enter();
raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
ret = __die(str, err, thread, regs);
if (regs && kexec_should_crash(thread->task))
crash_kexec(regs);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
if (ret != NOTIFY_STOP)
do_exit(SIGSEGV);
}
/*
* This function is protected against re-entrancy.
*/
void die(const char *str, struct pt_regs *regs, int err)
{
enum bug_trap_type bug_type = BUG_TRAP_TYPE_NONE;
struct thread_info *thread = current_thread_info();
int ret;
oops_enter();
raw_spin_lock_irq(&die_lock);
console_verbose();
bust_spinlocks(1);
if (!user_mode(regs))
bug_type = report_bug(regs->pc, regs);
if (bug_type != BUG_TRAP_TYPE_NONE)
str = "Oops - BUG";
ret = __die(str, err, thread, regs);
if (regs && kexec_should_crash(thread->task))
crash_kexec(regs);
bust_spinlocks(0);
add_taint(TAINT_DIE, LOCKDEP_NOW_UNRELIABLE);
raw_spin_unlock_irq(&die_lock);
oops_exit();
if (in_interrupt())
panic("Fatal exception in interrupt");
if (panic_on_oops)
panic("Fatal exception");
if (ret != NOTIFY_STOP)
do_exit(SIGSEGV);
}
/*
* Generic 'turn off all lock debugging' function:
*/
int debug_locks_off(void)
{
if (__debug_locks_off()) {
if (!debug_locks_silent) {
console_verbose();
return 1;
}
}
return 0;
}
asmlinkage void double_fault_c(struct pt_regs *fp)
{
console_verbose();
oops_in_progress = 1;
printk(KERN_EMERG "\n" KERN_EMERG "Double Fault\n");
dump_bfin_process(fp);
dump_bfin_mem(fp);
show_regs(fp);
panic("Double Fault - unrecoverable event\n");
}
/*
* bad_mode handles the impossible case in the exception vector. This is always
* fatal.
*/
asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)
{
console_verbose();
pr_crit("Bad mode in %s handler detected, code 0x%08x -- %s\n",
handler[reason], esr, esr_get_class_string(esr));
die("Oops - bad mode", regs, 0);
local_irq_disable();
panic("bad mode");
}
/*
* Generic 'turn off all lock debugging' function:
*/
int debug_locks_off(void)
{
if (__debug_locks_off()) {
if (!debug_locks_silent) {
oops_in_progress = 1;
console_verbose();
return 1;
}
}
return 0;
}
void __die(const char *str, struct pt_regs *regs, const char *file,
const char *func, unsigned long line)
{
console_verbose();
printk("%s", str);
if (file && func)
printk(" in %s:%s, line %ld", file, func, line);
printk(":\n");
show_registers(regs);
do_exit(SIGSEGV);
}
void die(const char * str, struct pt_regs * regs, long err)
{
console_verbose();
spin_lock_irq(&die_lock);
bust_spinlocks(1);
printk("%s: %04lx\n", str, err & 0xffff);
show_registers(regs);
bust_spinlocks(0);
spin_unlock_irq(&die_lock);
do_exit(SIGSEGV);
}
void die(const char *str, struct pt_regs *fp, long err)
{
console_verbose();
spin_lock_irq(&die_lock);
printk(KERN_WARNING "Oops: %s, sig: %ld\n", str, err);
show_regs(fp);
spin_unlock_irq(&die_lock);
/* do_exit() should take care of panic'ing from an interrupt
* context so we don't handle it here
*/
do_exit(err);
}
static int __init init_ntfs_fs(void)
{
/* Comment this if you trust klogd. There are reasons not to trust it
*/
#if defined(DEBUG) && !defined(MODULE)
console_verbose();
#endif
printk(KERN_NOTICE "NTFS version " NTFS_VERSION "\n");
SYSCTL(1);
ntfs_debug(DEBUG_OTHER, "registering %s\n",ntfs_fs_type.name);
/* add this filesystem to the kernel table of filesystems */
return register_filesystem(&ntfs_fs_type);
}
void die(char *str, struct pt_regs *fp, int nr)
{
console_verbose();
pr_err("%s: %08x\n", str, nr);
show_regs(fp);
pr_err("Process %s (pid: %d, stackpage=%08lx)\n",
current->comm, current->pid, (PAGE_SIZE +
(unsigned long) current));
dump_stack();
while (1)
;
}
void __init setup_arch(char **cmdline_p)
{
/* This also populates @boot_command_line from /bootargs */
machine_desc = setup_machine_fdt(__dtb_start);
if (!machine_desc)
panic("Embedded DT invalid\n");
/* Append any u-boot provided cmdline */
#ifdef CONFIG_CMDLINE_UBOOT
/* Add a whitespace seperator between the 2 cmdlines */
strlcat(boot_command_line, " ", COMMAND_LINE_SIZE);
strlcat(boot_command_line, command_line, COMMAND_LINE_SIZE);
#endif
/* Save unparsed command line copy for /proc/cmdline */
*cmdline_p = boot_command_line;
/* To force early parsing of things like mem=xxx */
parse_early_param();
/* Platform/board specific: e.g. early console registration */
if (machine_desc->init_early)
machine_desc->init_early();
setup_processor();
#ifdef CONFIG_SMP
smp_init_cpus();
#endif
setup_arch_memory();
/* copy flat DT out of .init and then unflatten it */
copy_devtree();
unflatten_device_tree();
/* Can be issue if someone passes cmd line arg "ro"
* But that is unlikely so keeping it as it is
*/
root_mountflags &= ~MS_RDONLY;
console_verbose();
#if defined(CONFIG_VT) && defined(CONFIG_DUMMY_CONSOLE)
conswitchp = &dummy_con;
#endif
arc_unwind_init();
arc_unwind_setup();
}
void die(const char *str, struct pt_regs *fp, unsigned long err)
{
static int diecount;
oops_enter();
console_verbose();
spin_lock_irq(&die_lock);
report_bug(fp->pc, fp);
printk(KERN_EMERG "%s: %04lx [#%d] ", str, err & 0xffff, ++diecount);
dump(fp);
spin_unlock_irq(&die_lock);
do_exit(SIGSEGV);
}
/*
* note the untimely death of part of the kernel
*/
void die(const char *str, struct pt_regs *regs, enum exception_code code)
{
console_verbose();
spin_lock_irq(&die_lock);
printk(KERN_EMERG "\n"
KERN_EMERG "%s: %04x\n",
str, code & 0xffff);
show_registers(regs);
if (regs->pc >= 0x02000000 && regs->pc < 0x04000000 &&
(regs->epsw & (EPSW_IM | EPSW_IE)) != (EPSW_IM | EPSW_IE)) {
printk(KERN_EMERG "Exception in usermode interrupt handler\n");
printk(KERN_EMERG "\n"
KERN_EMERG " Please connect to kernel debugger !!\n");
asm volatile ("0: bra 0b");
}
static int __init ram_console_init(volatile struct ram_console_buffer *buffer,
size_t buffer_size, const char *bootinfo,
char *old_buf)
{
#ifdef CONFIG_ANDROID_RAM_CONSOLE_ERROR_CORRECTION
int numerr;
uint8_t *par;
#endif
ram_console_tty_init();
register_console(&ram_console);
#ifdef CONFIG_ANDROID_RAM_CONSOLE_ENABLE_VERBOSE
console_verbose();
#endif
return 0;
}
/*
* bad_mode handles the impossible case in the exception vector.
*/
asmlinkage void bad_mode(struct pt_regs *regs, int reason, unsigned int esr)
{
siginfo_t info;
void __user *pc = (void __user *)instruction_pointer(regs);
console_verbose();
pr_crit("Bad mode in %s handler detected, code 0x%08x\n",
handler[reason], esr);
__show_regs(regs);
info.si_signo = SIGILL;
info.si_errno = 0;
info.si_code = ILL_ILLOPC;
info.si_addr = pc;
arm64_notify_die("Oops - bad mode", regs, &info, 0);
}
/* This is normally the 'Oops' routine */
void die(const char *str, struct pt_regs *regs, long err)
{
console_verbose();
printk("\n%s#: %04lx\n", str, err & 0xffff);
show_registers(regs);
#ifdef CONFIG_JUMP_UPON_UNHANDLED_EXCEPTION
printk("\n\nUNHANDLED_EXCEPTION: entering infinite loop\n");
/* shut down interrupts */
local_irq_disable();
__asm__ __volatile__("l.nop 1");
do {} while (1);
#endif
do_exit(SIGSEGV);
}
unsigned long oops_begin(void)
{
int cpu = safe_smp_processor_id();
unsigned long flags;
/* racy, but better than risking deadlock. */
local_irq_save(flags);
if (!spin_trylock(&die_lock)) {
if (cpu == die_owner)
/* nested oops. should stop eventually */;
else
spin_lock(&die_lock);
}
die_owner = cpu;
console_verbose();
bust_spinlocks(1);
return flags;
}
