void
rb_compile_bug(const char *file, int line, const char *fmt, ...)
{
report_bug(file, line, fmt, NULL);
abort();
}
void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str)
{
siginfo_t info;
if (user_mode(regs)) {
info.si_signo = si_signo;
info.si_errno = 0;
info.si_code = si_code;
info.si_addr = get_trap_ip(regs);
force_sig_info(si_signo, &info, current);
report_user_fault(regs, si_signo);
} else {
const struct exception_table_entry *fixup;
fixup = search_exception_tables(regs->psw.addr & PSW_ADDR_INSN);
if (fixup)
regs->psw.addr = extable_fixup(fixup) | PSW_ADDR_AMODE;
else {
enum bug_trap_type btt;
btt = report_bug(regs->psw.addr & PSW_ADDR_INSN, regs);
if (btt == BUG_TRAP_TYPE_WARN)
return;
die(regs, str);
}
}
}
/*
* 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);
}
void
rb_compile_bug(const char *file, int line, const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
report_bug(file, line, fmt, args);
va_end(args);
abort();
}
void
rb_bug(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
report_bug(rb_sourcefile(), rb_sourceline(), fmt, args);
va_end(args);
abort();
}
static void handle_BUG(struct pt_regs *regs)
{
enum bug_trap_type tt;
tt = report_bug(regs->pc, regs);
if (tt == BUG_TRAP_TYPE_WARN) {
regs->pc += instruction_size(regs->pc);
return;
}
die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
}
/*
* This is gone through when something in the kernel has done something bad
* and is about to be terminated:
*/
void die(const char *str, struct pt_regs *regs, long err)
{
unsigned long flags = oops_begin();
int sig = SIGSEGV;
if (!user_mode_vm(regs))
report_bug(regs->ip, regs);
if (__die(str, regs, err))
sig = 0;
oops_end(flags, regs, sig);
}
void
rb_bug(const char *fmt, ...)
{
const char *file = NULL;
int line = 0;
if (GET_THREAD()) {
file = rb_sourcefile();
line = rb_sourceline();
}
report_bug(file, line, fmt, NULL);
die();
}
/*
* This is gone through when something in the kernel has done something bad
* and is about to be terminated:
*/
void die(const char *str, struct pt_regs *regs, long err)
{
unsigned long flags = oops_begin();
if (die_nest_count < 3) {
report_bug(regs->ip, regs);
if (__die(str, regs, err))
regs = NULL;
} else {
printk(KERN_EMERG "Recursive die() failure, output suppressed\n");
}
oops_end(flags, regs, SIGSEGV);
}
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);
}
void
rb_bug(const char *fmt, ...)
{
va_list args;
va_start(args, fmt);
report_bug(rb_sourcefile(), rb_sourceline(), fmt, args);
va_end(args);
#if defined(_WIN32) && defined(RT_VER) && RT_VER >= 80
_set_abort_behavior( 0, _CALL_REPORTFAULT);
#endif
abort();
}
void
rb_bug_context(const void *ctx, const char *fmt, ...)
{
const char *file = NULL;
int line = 0;
if (GET_THREAD()) {
file = rb_sourcefile();
line = rb_sourceline();
}
report_bug(file, line, fmt, ctx);
die();
}
void
rb_bug(const char *fmt, ...)
{
va_list args;
const char *file = NULL;
int line = 0;
if (GET_THREAD()) {
file = rb_sourcefile();
line = rb_sourceline();
}
va_start(args, fmt);
report_bug(file, line, fmt, args);
va_end(args);
#if defined(_WIN32) && defined(RT_VER) && RT_VER >= 80
_set_abort_behavior( 0, _CALL_REPORTFAULT);
#endif
abort();
}
static int bug_handler(struct pt_regs *regs, unsigned int esr)
{
if (user_mode(regs))
return DBG_HOOK_ERROR;
switch (report_bug(regs->pc, regs)) {
case BUG_TRAP_TYPE_BUG:
die("Oops - BUG", regs, 0);
break;
case BUG_TRAP_TYPE_WARN:
/* Ideally, report_bug() should backtrace for us... but no. */
dump_backtrace(regs, NULL);
break;
default:
/* unknown/unrecognised bug trap type */
return DBG_HOOK_ERROR;
}
/* If thread survives, skip over the BUG instruction and continue: */
regs->pc += AARCH64_INSN_SIZE; /* skip BRK and resume */
return DBG_HOOK_HANDLED;
}
static void handle_BUG(struct pt_regs *regs)
{
const struct bug_entry *bug;
unsigned long bugaddr = regs->pc;
enum bug_trap_type tt;
if (!is_valid_bugaddr(bugaddr))
goto invalid;
bug = find_bug(bugaddr);
/* Switch unwinders when unwind_stack() is called */
if (bug->flags & BUGFLAG_UNWINDER)
unwinder_faulted = 1;
tt = report_bug(bugaddr, regs);
if (tt == BUG_TRAP_TYPE_WARN) {
regs->pc += instruction_size(bugaddr);
return;
}
invalid:
die("Kernel BUG", regs, TRAPA_BUG_OPCODE & 0xff);
}
asmlinkage notrace void trap_c(struct pt_regs *fp)
{
#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
int j;
#endif
#ifdef CONFIG_BFIN_PSEUDODBG_INSNS
int opcode;
#endif
unsigned int cpu = raw_smp_processor_id();
const char *strerror = NULL;
int sig = 0;
siginfo_t info;
unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE;
trace_buffer_save(j);
#if defined(CONFIG_DEBUG_MMRS) || defined(CONFIG_DEBUG_MMRS_MODULE)
last_seqstat = (u32)fp->seqstat;
#endif
fp->orig_pc = fp->retx;
switch (trapnr) {
case VEC_EXCPT01:
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
if (kernel_mode_regs(fp))
goto traps_done;
else
break;
case VEC_EXCPT03:
info.si_code = SEGV_STACKFLOW;
sig = SIGSEGV;
strerror = KERN_NOTICE EXC_0x03(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_EXCPT02:
#ifdef CONFIG_KGDB
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP();
goto traps_done;
#endif
case VEC_EXCPT04 ... VEC_EXCPT15:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x04(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_STEP:
info.si_code = TRAP_STEP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
if (kernel_mode_regs(fp))
goto traps_done;
else
break;
case VEC_OVFLOW:
info.si_code = TRAP_TRACEFLOW;
sig = SIGTRAP;
strerror = KERN_NOTICE EXC_0x11(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_UNDEF_I:
#ifdef CONFIG_BUG
if (kernel_mode_regs(fp)) {
switch (report_bug(fp->pc, fp)) {
case BUG_TRAP_TYPE_NONE:
break;
case BUG_TRAP_TYPE_WARN:
dump_bfin_trace_buffer();
fp->pc += 2;
goto traps_done;
case BUG_TRAP_TYPE_BUG:
panic("BUG()");
}
}
#endif
#ifdef CONFIG_BFIN_PSEUDODBG_INSNS
if (!kernel_mode_regs(fp) && get_instruction(&opcode, (unsigned short *)fp->pc)) {
if (execute_pseudodbg_assert(fp, opcode))
goto traps_done;
if (execute_pseudodbg(fp, opcode))
goto traps_done;
}
#endif
info.si_code = ILL_ILLOPC;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x21(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_ILGAL_I:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x22(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_CPLB_VL:
info.si_code = ILL_CPLB_VI;
sig = SIGSEGV;
strerror = KERN_NOTICE EXC_0x23(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_MISALI_D:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x24(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_UNCOV:
info.si_code = ILL_ILLEXCPT;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x25(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_CPLB_M:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x26(KERN_NOTICE);
break;
case VEC_CPLB_MHIT:
info.si_code = ILL_CPLB_MULHIT;
sig = SIGSEGV;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
if (cpu_pda[cpu].dcplb_fault_addr < FIXED_CODE_START)
strerror = KERN_NOTICE "NULL pointer access\n";
else
#endif
strerror = KERN_NOTICE EXC_0x27(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_WATCH:
info.si_code = TRAP_WATCHPT;
sig = SIGTRAP;
pr_debug(EXC_0x28(KERN_DEBUG));
CHK_DEBUGGER_TRAP_MAYBE();
if (kernel_mode_regs(fp))
goto traps_done;
else
break;
#ifdef CONFIG_BF535
case VEC_ISTRU_VL:
info.si_code = BUS_OPFETCH;
sig = SIGBUS;
strerror = KERN_NOTICE "BF535: VEC_ISTRU_VL\n";
CHK_DEBUGGER_TRAP_MAYBE();
break;
#else
#endif
case VEC_MISALI_I:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x2A(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_CPLB_I_VL:
info.si_code = ILL_CPLB_VI;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x2B(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_CPLB_I_M:
info.si_code = ILL_CPLB_MISS;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x2C(KERN_NOTICE);
break;
case VEC_CPLB_I_MHIT:
info.si_code = ILL_CPLB_MULHIT;
sig = SIGSEGV;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
if (cpu_pda[cpu].icplb_fault_addr < FIXED_CODE_START)
strerror = KERN_NOTICE "Jump to NULL address\n";
else
#endif
strerror = KERN_NOTICE EXC_0x2D(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_ILL_RES:
info.si_code = ILL_PRVOPC;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x2E(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
case VEC_HWERR:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
switch (fp->seqstat & SEQSTAT_HWERRCAUSE) {
case (SEQSTAT_HWERRCAUSE_SYSTEM_MMR):
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE HWC_x2(KERN_NOTICE);
break;
case (SEQSTAT_HWERRCAUSE_EXTERN_ADDR):
if (ANOMALY_05000310) {
static unsigned long anomaly_rets;
if ((fp->pc >= (L1_CODE_START + L1_CODE_LENGTH - 512)) &&
(fp->pc < (L1_CODE_START + L1_CODE_LENGTH))) {
anomaly_rets = fp->rets;
goto traps_done;
} else if (fp->rets == anomaly_rets) {
goto traps_done;
} else if ((fp->rets >= (L1_CODE_START + L1_CODE_LENGTH - 512)) &&
(fp->rets < (L1_CODE_START + L1_CODE_LENGTH))) {
goto traps_done;
} else
anomaly_rets = 0;
}
info.si_code = BUS_ADRERR;
sig = SIGBUS;
strerror = KERN_NOTICE HWC_x3(KERN_NOTICE);
break;
case (SEQSTAT_HWERRCAUSE_PERF_FLOW):
strerror = KERN_NOTICE HWC_x12(KERN_NOTICE);
break;
case (SEQSTAT_HWERRCAUSE_RAISE_5):
printk(KERN_NOTICE HWC_x18(KERN_NOTICE));
break;
default:
printk(KERN_NOTICE HWC_default(KERN_NOTICE));
break;
}
CHK_DEBUGGER_TRAP_MAYBE();
break;
default:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
verbose_printk(KERN_EMERG "Caught Unhandled Exception, code = %08lx\n",
(fp->seqstat & SEQSTAT_EXCAUSE));
CHK_DEBUGGER_TRAP_MAYBE();
break;
}
BUG_ON(sig == 0);
if (kernel_mode_regs(fp) || (current && !current->mm)) {
console_verbose();
oops_in_progress = 1;
}
if (sig != SIGTRAP) {
if (strerror)
verbose_printk(strerror);
dump_bfin_process(fp);
dump_bfin_mem(fp);
show_regs(fp);
#ifndef CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE
if (trapnr == VEC_CPLB_I_M || trapnr == VEC_CPLB_M)
verbose_printk(KERN_NOTICE "No trace since you do not have "
"CONFIG_DEBUG_BFIN_NO_KERN_HWTRACE enabled\n\n");
else
#endif
dump_bfin_trace_buffer();
if (oops_in_progress) {
verbose_printk(KERN_NOTICE "Kernel Stack\n");
show_stack(current, NULL);
print_modules();
#ifndef CONFIG_ACCESS_CHECK
verbose_printk(KERN_EMERG "Please turn on "
"CONFIG_ACCESS_CHECK\n");
#endif
panic("Kernel exception");
} else {
#ifdef CONFIG_DEBUG_VERBOSE
unsigned long *stack;
stack = (unsigned long *)rdusp();
verbose_printk(KERN_NOTICE "Userspace Stack\n");
show_stack(NULL, stack);
#endif
}
}
#ifdef CONFIG_IPIPE
if (!ipipe_trap_notify(fp->seqstat & 0x3f, fp))
#endif
{
info.si_signo = sig;
info.si_errno = 0;
switch (trapnr) {
case VEC_CPLB_VL:
case VEC_MISALI_D:
case VEC_CPLB_M:
case VEC_CPLB_MHIT:
info.si_addr = (void __user *)cpu_pda[cpu].dcplb_fault_addr;
break;
default:
info.si_addr = (void __user *)fp->pc;
break;
}
force_sig_info(sig, &info, current);
}
if ((ANOMALY_05000461 && trapnr == VEC_HWERR && !access_ok(VERIFY_READ, fp->pc, 8)) ||
(ANOMALY_05000281 && trapnr == VEC_HWERR) ||
(ANOMALY_05000189 && (trapnr == VEC_CPLB_I_VL || trapnr == VEC_CPLB_VL)))
fp->pc = SAFE_USER_INSTRUCTION;
traps_done:
trace_buffer_restore(j);
}
//----------------------------------------------------------------------------------------------------------------------
// WM_COMMAND
//----------------------------------------------------------------------------------------------------------------------
void cWinMain :: wm_command ( WPARAM wParam, LPARAM lParam )
{
UNREFERENCED_PARAMETER ( lParam );
UNREFERENCED_PARAMETER ( wParam );
WORD wID = LOWORD(wParam);
WORD wEvent = HIWORD(wParam);
UNREFERENCED_PARAMETER ( wEvent );
switch ( wID )
{
case ID_ABOUT:
{
cDlgAbout d;
d.make_dlg();
}
break;
case ID_ACTIVE_WINDOW_TRACKING_SETTINGS:
{
cDlgSettingsActiveWindowTracking d;
d.make_dlg ();
}
break;
case ID_APPEARANCE_SETTINGS:
{
cDlgSettingsAppearance d;
d.make_dlg ();
}
break;
case ID_CLEAR:
PostMessage ( DlgMonitor.hwnd, WM_COMMAND, ID_CLEAR, ID_CLEAR );
break;
case ID_CONNECTION_SETTINGS:
{
cDlgSettingsConnection d;
d.make_dlg ();
}
break;
case ID_CREATE_DESKTOP_SHORTCUT:
create_click_once_shortcut ();
break;
case ID_EXIT:
DestroyWindow(hwnd);
break;
case ID_MOUSEOVER_SETTINGS:
{
cDlgMouseOver d;
d.make_dlg ();
}
break;
case ID_PERFORMANCE_SETTINGS:
{
cDlgSettingsPerformance d;
d.make_dlg ();
}
break;
case ID_PREDEFINED_HOTKEYS:
{
cFigPredefinedHotkeys * p = g_FigMgr.get_predefined_hotkeys();
cDlgFigPredefinedHotkeys d;
d.make_dlg ( p );
}
break;
case ID_SHOW_APP_LOG:
show_app_data_file ( L"mojo.log.txt" );
break;
case ID_SHOW_APP_SETTINGS:
show_app_data_file ( L"mojo.settings.txt" );
break;
case ID_SHOW_ENGINE_LOG:
show_app_data_file ( L"mojo_engine.log.txt" );
break;
case ID_SHOW_ENGINE_SETTINGS:
show_app_data_file ( L"mojo_engine.settings.txt" );
break;
case ID_SHOW_INSTALLATION_DIRECTORY:
{
cStrW s1, s2;
s1 = L"Location of Mojo's executable files:\n\n";
get_module_directory ( & s2 );
s1 += s2;
message_box ( s1.cstr() );
}
break;
case ID_SHOW_LICENSE_DIALOG:
{
cDlgLicense d;
d.make_dlg();
}
break;
case ID_TEST:
::test ();
break;
case ID_TEST_SET_TRIGGER:
{
cDlgSetTrigger d;
mojo::cTrigger t;
d.make_dlg(&t);
}
case ID_TOGGLE_BROADCAST:
toggle_broadcast ();
break;
case ID_TOGGLE_HOTKEYS:
toggle_hotkeys ();
message_box ( L"Hotkeys aren't implemented yet." );
break;
case ID_TOGGLE_MOUSEOVER:
toggle_mouseover ();
break;
case ID_VIEW_COMPUTERS:
g_Settings.uView = computers;
set_view();
break;
case ID_VIEW_MONITOR:
g_Settings.uView = monitor;
set_view();
break;
case ID_VIEW_TOONS:
g_Settings.uView = toons;
set_view();
break;
case ID_VIEW_WOWS:
g_Settings.uView = wows;
set_view();
break;
#if 0
case ID_RESTORE_DEFAULT_SETTINGS:
g_Settings.restore_defaults();
break;
case ID_SETTINGS_MOUSEOVER:
{
cDlgMouseOver d;
d.make_dlg();
}
break;
case ID_HIDE_HOTKEYNET:
set_tray_icon ();
ShowWindow ( g_hwnd, SW_HIDE );
break;
case ID_TOGGLE_SHOW_STATE:
ShowWindow ( g_hwnd, IsWindowVisible(g_hwnd) ? SW_HIDE : SW_RESTORE );
break;
case ID_TOGGLE_HOTKEYS:
toggle_hotkeys();
break;
case ID_DEBUG:
debug();
break;
case ID_ASK_QUESTION:
show_forum();
break;
case ID_REPORT_BUG:
report_bug ();
break;
case ID_INSTRUCTIONS:
show_instructions ();
break;
case ID_SETTINGS_CONNECTION:
{
cDlgSettingsConnection d;
d.make_dlg();
}
break;
case ID_SETTINGS_SECURITY:
{
cDlgSettingsSecurity d;
d.make_dlg();
}
break;
case ID_SETTINGS_START_UP:
{
cDlgSettingsStartUp d;
d.make_dlg();
}
break;
case ID_SETTINGS_DISPLAY:
{
cDlgSettingsDisplay d;
d.make_dlg();
}
break;
case ID_INSTALLATION_OPTIONS:
installation_options ();
break;
case ID_CREATE_SHORTCUT:
create_clickonce_shortcut ();
break;
case ID_CREATE_SCRIPT:
if ( create_script () )
load_script_sub();
break;
case ID_OPEN_DEBUG_LOG:
open_text_file ( g_Log.filename() );
break;
case ID_LOAD_SCRIPT:
g_Monitor.clear();
load_script();
break;
case ID_RELOAD_SCRIPT:
g_Monitor.clear();
load_script_sub ();
break;
case ID_EDIT_SCRIPT:
edit_script();
break;
case IDM_ABOUT:
{
cDlgMessageBox d;
d.make_dlg();
}
break;
#endif
}
}
asmlinkage notrace void trap_c(struct pt_regs *fp)
{
#ifdef CONFIG_DEBUG_BFIN_HWTRACE_ON
int j;
#endif
#ifdef CONFIG_BFIN_PSEUDODBG_INSNS
int opcode;
#endif
unsigned int cpu = raw_smp_processor_id();
const char *strerror = NULL;
int sig = 0;
siginfo_t info;
unsigned long trapnr = fp->seqstat & SEQSTAT_EXCAUSE;
trace_buffer_save(j);
#if defined(CONFIG_DEBUG_MMRS) || defined(CONFIG_DEBUG_MMRS_MODULE)
last_seqstat = (u32)fp->seqstat;
#endif
/* Important - be very careful dereferncing pointers - will lead to
* double faults if the stack has become corrupt
*/
/* trap_c() will be called for exceptions. During exceptions
* processing, the pc value should be set with retx value.
* With this change we can cleanup some code in signal.c- TODO
*/
fp->orig_pc = fp->retx;
/* printk("exception: 0x%x, ipend=%x, reti=%x, retx=%x\n",
trapnr, fp->ipend, fp->pc, fp->retx); */
/* send the appropriate signal to the user program */
switch (trapnr) {
/* This table works in conjunction with the one in ./mach-common/entry.S
* Some exceptions are handled there (in assembly, in exception space)
* Some are handled here, (in C, in interrupt space)
* Some, like CPLB, are handled in both, where the normal path is
* handled in assembly/exception space, and the error path is handled
* here
*/
/* 0x00 - Linux Syscall, getting here is an error */
/* 0x01 - userspace gdb breakpoint, handled here */
case VEC_EXCPT01:
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
/* Check if this is a breakpoint in kernel space */
if (kernel_mode_regs(fp))
goto traps_done;
else
break;
/* 0x03 - User Defined, userspace stack overflow */
case VEC_EXCPT03:
info.si_code = SEGV_STACKFLOW;
sig = SIGSEGV;
strerror = KERN_NOTICE EXC_0x03(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x02 - KGDB initial connection and break signal trap */
case VEC_EXCPT02:
#ifdef CONFIG_KGDB
info.si_code = TRAP_ILLTRAP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP();
goto traps_done;
#endif
/* 0x04 - User Defined */
/* 0x05 - User Defined */
/* 0x06 - User Defined */
/* 0x07 - User Defined */
/* 0x08 - User Defined */
/* 0x09 - User Defined */
/* 0x0A - User Defined */
/* 0x0B - User Defined */
/* 0x0C - User Defined */
/* 0x0D - User Defined */
/* 0x0E - User Defined */
/* 0x0F - User Defined */
/* If we got here, it is most likely that someone was trying to use a
* custom exception handler, and it is not actually installed properly
*/
case VEC_EXCPT04 ... VEC_EXCPT15:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x04(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x10 HW Single step, handled here */
case VEC_STEP:
info.si_code = TRAP_STEP;
sig = SIGTRAP;
CHK_DEBUGGER_TRAP_MAYBE();
/* Check if this is a single step in kernel space */
if (kernel_mode_regs(fp))
goto traps_done;
else
break;
/* 0x11 - Trace Buffer Full, handled here */
case VEC_OVFLOW:
info.si_code = TRAP_TRACEFLOW;
sig = SIGTRAP;
strerror = KERN_NOTICE EXC_0x11(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x12 - Reserved, Caught by default */
/* 0x13 - Reserved, Caught by default */
/* 0x14 - Reserved, Caught by default */
/* 0x15 - Reserved, Caught by default */
/* 0x16 - Reserved, Caught by default */
/* 0x17 - Reserved, Caught by default */
/* 0x18 - Reserved, Caught by default */
/* 0x19 - Reserved, Caught by default */
/* 0x1A - Reserved, Caught by default */
/* 0x1B - Reserved, Caught by default */
/* 0x1C - Reserved, Caught by default */
/* 0x1D - Reserved, Caught by default */
/* 0x1E - Reserved, Caught by default */
/* 0x1F - Reserved, Caught by default */
/* 0x20 - Reserved, Caught by default */
/* 0x21 - Undefined Instruction, handled here */
case VEC_UNDEF_I:
#ifdef CONFIG_BUG
if (kernel_mode_regs(fp)) {
switch (report_bug(fp->pc, fp)) {
case BUG_TRAP_TYPE_NONE:
break;
case BUG_TRAP_TYPE_WARN:
dump_bfin_trace_buffer();
fp->pc += 2;
goto traps_done;
case BUG_TRAP_TYPE_BUG:
/* call to panic() will dump trace, and it is
* off at this point, so it won't be clobbered
*/
panic("BUG()");
}
}
#endif
#ifdef CONFIG_BFIN_PSEUDODBG_INSNS
/*
* Support for the fake instructions, if the instruction fails,
* then just execute a illegal opcode failure (like normal).
* Don't support these instructions inside the kernel
*/
if (!kernel_mode_regs(fp) && get_instruction(&opcode, (unsigned short *)fp->pc)) {
if (execute_pseudodbg_assert(fp, opcode))
goto traps_done;
if (execute_pseudodbg(fp, opcode))
goto traps_done;
}
#endif
info.si_code = ILL_ILLOPC;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x21(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x22 - Illegal Instruction Combination, handled here */
case VEC_ILGAL_I:
info.si_code = ILL_ILLPARAOP;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x22(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x23 - Data CPLB protection violation, handled here */
case VEC_CPLB_VL:
info.si_code = ILL_CPLB_VI;
sig = SIGSEGV;
strerror = KERN_NOTICE EXC_0x23(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x24 - Data access misaligned, handled here */
case VEC_MISALI_D:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x24(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x25 - Unrecoverable Event, handled here */
case VEC_UNCOV:
info.si_code = ILL_ILLEXCPT;
sig = SIGILL;
strerror = KERN_NOTICE EXC_0x25(KERN_NOTICE);
CHK_DEBUGGER_TRAP_MAYBE();
break;
/* 0x26 - Data CPLB Miss, normal case is handled in _cplb_hdr,
error case is handled here */
case VEC_CPLB_M:
info.si_code = BUS_ADRALN;
sig = SIGBUS;
strerror = KERN_NOTICE EXC_0x26(KERN_NOTICE);
break;
/* 0x27 - Data CPLB Multiple Hits - Linux Trap Zero, handled here */
case VEC_CPLB_MHIT:
info.si_code = ILL_CPLB_MULHIT;
sig = SIGSEGV;
#ifdef CONFIG_DEBUG_HUNT_FOR_ZERO
if (
