generic
[Interrupt handling and dispatching]

Files
file	interrupt.h
file	interrupt.c
	Interrupt redirector.
Defines
#define	IVT_ITEMS   0
#define	IVT_FIRST   0
#define	fault_if_from_uspace(istate, cmd,)
Functions
iroutine	exc_register (int n, const char *name, iroutine f)
void	exc_dispatch (int n, istate_t *t)
void	exc_init (void)
	SPINLOCK_INITIALIZE (exctbl_lock)
static void	exc_undef (int n, istate_t *istate)
static int	exc_print_cmd (cmd_arg_t *argv)
Variables
struct {
	SPINLOCK_DECLARE (lock)
const char *   name
iroutine   f
int   count
zone_t *   info [ZONES_MAX]
}	exc_table [IVT_ITEMS]
static cmd_info_t	exc_info

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Define Documentation

#define fault_if_from_uspace (  istate, cmd   )

Value: { \ if (istate_from_uspace(istate)) { \ klog_printf(cmd, ##__VA_ARGS__); \ klog_printf("Task %lld got exception at PC:%p. Task killed.", TASK->taskid, istate_get_pc(istate)); \ task_kill(TASK->taskid); \ thread_exit(); \ } \ } Definition at line 55 of file interrupt.h. Referenced by exc_undef(), gp_fault(), nm_fault(), null_interrupt(), page_fault(), simd_fp_exception(), and ss_fault().

#define IVT_FIRST   0

Definition at line 52 of file interrupt.h. Referenced by exc_dispatch(), and exc_print_cmd().

#define IVT_ITEMS   0

Definition at line 48 of file interrupt.h. Referenced by exc_dispatch(), exc_init(), exc_print_cmd(), and exc_register().

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Function Documentation

void exc_dispatch (  int  n, istate_t *  istate )

Dispatch exception according to exception table Called directly from the assembler code. CPU is interrupts_disable()'d. Definition at line 86 of file interrupt.c. References ASSERT, exc_table, istate_from_uspace(), IVT_FIRST, IVT_ITEMS, THREAD, and thread_exit(). Here is the call graph for this function:

void exc_init (  void   )

Initialize generic exception handling support Definition at line 140 of file interrupt.c. References cmd_initialize(), cmd_register(), exc_info, exc_register(), exc_undef(), IVT_ITEMS, and panic. Referenced by main_bsp_separated_stack(). Here is the call graph for this function:

static int exc_print_cmd (  cmd_arg_t *  argv  )  [static]

kconsole cmd - print all exceptions Definition at line 104 of file interrupt.c. References exc_table, f, get_symtab_entry(), getc(), IVT_FIRST, IVT_ITEMS, name, printf(), spinlock_lock, spinlock_unlock(), and stdin. Here is the call graph for this function:

iroutine exc_register (  int  n, const char *  name, iroutine  f )

Register exception handler Parameters: n  Exception number name  Description f  Exception handler Definition at line 64 of file interrupt.c. References ASSERT, exc_table, IVT_ITEMS, spinlock_lock, and spinlock_unlock(). Referenced by apic_init(), arch_pre_mm_init(), exc_init(), i8042_grab(), i8042_release(), i8254_normal_operation(), i8259_init(), idt_init(), irq_ipc_bind_arch(), and page_arch_init(). Here is the call graph for this function:

static void exc_undef (  int  n, istate_t *  istate )  [static]

Default 'null' exception handler Definition at line 97 of file interrupt.c. References fault_if_from_uspace, and panic. Referenced by exc_init().

SPINLOCK_INITIALIZE (  exctbl_lock   )

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Variable Documentation

cmd_info_t exc_info [static]

Initial value: { .name = "exc", .description = "Print exception table.", .func = exc_print_cmd, .help = NULL, .argc = 0, .argv = NULL } Definition at line 130 of file interrupt.c. Referenced by exc_init().

struct { ... } exc_table[IVT_ITEMS] [static]

Referenced by exc_dispatch(), exc_print_cmd(), and exc_register().

iroutine f [inherited]

Definition at line 53 of file interrupt.c.

const char* name [inherited]

Definition at line 52 of file interrupt.c.

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