panic.c File Reference

#include <kernel/log/panic.h>
#include <kernel/cpu/cpu.h>
#include <kernel/cpu/interrupt.h>
#include <kernel/cpu/port.h>
#include <kernel/cpu/regs.h>
#include <kernel/cpu/smp.h>
#include <kernel/log/log.h>
#include <kernel/mem/pmm.h>
#include <kernel/mem/vmm.h>
#include <kernel/sched/thread.h>
#include <kernel/sched/timer.h>
#include <kernel/version.h>
#include <boot/boot_info.h>
#include <stdarg.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/io.h>
#include <sys/math.h>
#include <sys/proc.h>

Go to the source code of this file.

Functions
static bool	panic_is_valid_stack_frame (void *ptr)
static bool	panic_is_valid_address (uintptr_t addr)
static const char *	panic_resolve_symbol (uintptr_t addr, uintptr_t *offset)
static const char *	panic_get_exception_name (uint64_t vector)
static void	panic_registers (const interrupt_frame_t *frame)
static void	panic_print_stack_dump (const interrupt_frame_t *frame)
static void	panic_print_trace_address (uintptr_t addr)
static void	panic_direct_stack_trace (void)
void	panic_stack_trace (const interrupt_frame_t *frame)
	Print a stack trace from a interrupt frame.
void	panic_symbols_init (const boot_kernel_t *kernel)
	Initialize panic symbols from the bootloader-provided kernel information.
void	panic (const interrupt_frame_t *frame, const char *format,...)
	Panic the kernel, printing a message and halting.

Variables
uint64_t	_kernelStart
uint64_t	_kernelEnd
static list_t	symbols = LIST_CREATE(symbols)
static bool	symbolsLoaded = false
static char	panicBuffer [LOG_MAX_BUFFER] = {0}
static atomic_uint32_t	panicCpudId = ATOMIC_VAR_INIT(PANIC_NO_CPU_ID)

Function Documentation

panic_direct_stack_trace()

static void panic_direct_stack_trace ( void  )

static

Definition at line 246 of file panic.c.

References LOG_PANIC, NULL, panic_is_valid_stack_frame(), PANIC_MAX_STACK_FRAMES, and panic_print_trace_address().

Referenced by panic().

panic_get_exception_name()

static const char * panic_get_exception_name ( uint64_t  vector )

static

Definition at line 113 of file panic.c.

Referenced by panic().

panic_is_valid_address()

static bool panic_is_valid_address ( uintptr_t  addr )

static

Definition at line 65 of file panic.c.

References UINTPTR_MAX, VMM_IDENTITY_MAPPED_MIN, VMM_KERNEL_BINARY_MAX, VMM_USER_SPACE_MAX, and VMM_USER_SPACE_MIN.

Referenced by panic_print_stack_dump().

panic_is_valid_stack_frame()

static bool panic_is_valid_stack_frame ( void *  ptr )

static

Definition at line 35 of file panic.c.

References NULL, UINTPTR_MAX, VMM_IDENTITY_MAPPED_MIN, VMM_KERNEL_BINARY_MAX, VMM_USER_SPACE_MAX, and VMM_USER_SPACE_MIN.

Referenced by panic_direct_stack_trace(), and panic_stack_trace().

panic_print_stack_dump()

static void panic_print_stack_dump ( const interrupt_frame_t *  frame )

static

Definition at line 168 of file panic.c.

References LOG_PANIC, panic_is_valid_address(), and interrupt_frame_t::rsp.

Referenced by panic().

panic_print_trace_address()

static void panic_print_trace_address ( uintptr_t  addr )

static

Definition at line 227 of file panic.c.

References LOG_PANIC, NULL, panic_resolve_symbol(), VMM_USER_SPACE_MAX, and VMM_USER_SPACE_MIN.

Referenced by panic_direct_stack_trace(), and panic_stack_trace().

panic_registers()

static void panic_registers ( const interrupt_frame_t *  frame )

static

Definition at line 147 of file panic.c.

References interrupt_frame_t::cs, LOG_PANIC, NULL, panic_resolve_symbol(), interrupt_frame_t::r10, interrupt_frame_t::r11, interrupt_frame_t::r12, interrupt_frame_t::r13, interrupt_frame_t::r14, interrupt_frame_t::r15, interrupt_frame_t::r8, interrupt_frame_t::r9, interrupt_frame_t::rax, interrupt_frame_t::rbp, interrupt_frame_t::rbx, interrupt_frame_t::rcx, interrupt_frame_t::rdi, interrupt_frame_t::rdx, interrupt_frame_t::rflags, interrupt_frame_t::rip, interrupt_frame_t::rsi, interrupt_frame_t::rsp, and interrupt_frame_t::ss.

Referenced by panic().

panic_resolve_symbol()

static const char * panic_resolve_symbol ( uintptr_t  addr, uintptr_t *  offset  )

static

Definition at line 90 of file panic.c.

References LIST_FOR_EACH, panic_symbol_t::name, NULL, panic_symbol_t::start, symbols, and symbolsLoaded.

Referenced by panic_print_trace_address(), and panic_registers().

Variable Documentation

_kernelEnd

uint64_t _kernelEnd

extern

Referenced by panic().

_kernelStart

uint64_t _kernelStart

extern

Referenced by panic().

panicBuffer

char panicBuffer[LOG_MAX_BUFFER] = {0}

static

Definition at line 31 of file panic.c.

Referenced by panic().

panicCpudId

atomic_uint32_t panicCpudId = ATOMIC_VAR_INIT(PANIC_NO_CPU_ID)

static

Definition at line 33 of file panic.c.

Referenced by panic().

symbols

list_t symbols = LIST_CREATE(symbols)

static

Definition at line 29 of file panic.c.

Referenced by panic_resolve_symbol(), and panic_symbols_init().

symbolsLoaded

bool symbolsLoaded = false

static

Definition at line 30 of file panic.c.

Referenced by panic_resolve_symbol(), and panic_symbols_init().