log.c File Reference

(7c4d7d1 userspace/term: change eyecandy inclusion to use objcopy instead of xxd)

#include <config.h>
#include <stdint.h>
#include <string.h>
#include <panic.h>
#include <fbconsole.h>
#include <log.h>
#include <vm.h>
#include <scheduler.h>
#include <efi.h>
#include <io.h>

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Data Structures
struct	logging_page

Functions
void	log_append_page (void)
void	log_append (char level, char *component, char *message)
void	log (char level, char *component, char *fmt,...)
void	sc_handle_debug_print (char *message)

Variables
const int	logging_page_size = 4080
struct logging_page	log_initial_page
struct logging_page *	log_first = &log_initial_page
struct logging_page *	log_last = &log_initial_page
uint64_t	log_page_count = 1
uint64_t	log_count = 0

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Data Structure Documentation

logging_page

struct logging_page

Definition at line 14 of file log.c.

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Data Fields
uint16_t	current_end
char	messages[logging_page_size - 18]
struct logging_page *	next
struct logging_page *	prev

Function Documentation

log()

void log	(	char	level,
		char *	component,
		char *	fmt,
			...
	)

Append a log message to the kernel log buffer

Parameters

level	Log level of the message (D, I, W, E, F -> debug, info, warning, error, fatal)
component	Sub component (kernel, mm, vm, scheduler, ...)
fmt	sprintf format string
...	Variables to set in the resulting message

Definition at line 120 of file log.c.

References kvsnprintf(), log_append(), logging_page_size, memset(), va_end, and va_start.

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log_append()

void log_append	(	char	level,
		char *	component,
		char *	message
	)

Append a log message to the kernel log buffer

Parameters

level	Log level of the message (D, I, W, E, F -> debug, info, warning, error, fatal)
component	Sub component (kernel, mm, vm, scheduler, ...)
message	Message to log

Definition at line 62 of file log.c.

References logging_page::current_end, efi_append_log(), fbconsole_active, fbconsole_write(), inb(), ksnprintf(), log_append_page(), log_count, log_first, log_last, message, logging_page::messages, outb(), and strlen().

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log_append_page()

void log_append_page

(

void

)

Definition at line 34 of file log.c.

References logging_page::current_end, log_count, log_first, log_initial_page, log_last, log_page_count, logging_page_size, memset(), logging_page::messages, logging_page::next, logging_page::prev, vm_alloc(), and vm_free().

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sc_handle_debug_print()

void sc_handle_debug_print

(

char *

message

)

Definition at line 132 of file log.c.

References ksnprintf(), logd, message, scheduler_current_process, and strlen().

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Variable Documentation

log_count

uint64_t log_count = 0

Definition at line 32 of file log.c.

log_first

struct logging_page* log_first = &log_initial_page

Definition at line 29 of file log.c.

log_initial_page

struct logging_page log_initial_page

Initial value:

= {
    .prev        = 0,
    .next        = 0,
    .current_end = 0,
}

Definition at line 23 of file log.c.

log_last

struct logging_page* log_last = &log_initial_page

Definition at line 30 of file log.c.

log_page_count

uint64_t log_page_count = 1

Definition at line 31 of file log.c.

logging_page_size

const int logging_page_size = 4080

Definition at line 12 of file log.c.