symbol.c File Reference

#include <kernel/module/symbol.h>
#include <kernel/log/log.h>
#include <kernel/log/panic.h>
#include <kernel/sync/rwlock.h>
#include <errno.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <sys/list.h>
#include <sys/proc.h>

Go to the source code of this file.

Functions
symbol_group_id_t	symbol_generate_group_id (void)
	Generate a unique symbol group identifier.
static uint64_t	symbol_get_floor_index_for_addr (void *addr)
static symbol_addr_t *	symbol_insert_address (void *addr, symbol_group_id_t groupId, Elf64_Symbol_Binding binding, Elf64_Symbol_Type type, symbol_name_t *symbolName)
static uint64_t	symbol_resolve_addr_unlocked (symbol_info_t *outSymbol, void *addr)
static uint64_t	symbol_resolve_name_unlocked (symbol_info_t *outSymbol, const char *name)
uint64_t	symbol_add (const char *name, void *addr, symbol_group_id_t groupId, Elf64_Symbol_Binding binding, Elf64_Symbol_Type type)
	Add a symbol to the kernel symbol table.
void	symbol_remove_group (symbol_group_id_t groupId)
	Remove all symbols from the kernel symbol table in the given group.
uint64_t	symbol_resolve_addr (symbol_info_t *outSymbol, void *addr)
	Resolve a symbol by address.
uint64_t	symbol_resolve_name (symbol_info_t *outSymbol, const char *name)
	Resolve a symbol by name.

Variables
static symbol_addr_t **	addrArray = NULL
static uint64_t	addrAmount = 0
static uint64_t	addrCapacity = 0
static map_t	nameMap = MAP_CREATE
static map_t	groupMap = MAP_CREATE
static rwlock_t	lock = RWLOCK_CREATE

Function Documentation

symbol_get_floor_index_for_addr()

static uint64_t symbol_get_floor_index_for_addr ( void *  addr )

static

Definition at line 31 of file symbol.c.

References addrAmount, addrArray, and NULL.

Referenced by symbol_resolve_addr_unlocked().

symbol_insert_address()

static symbol_addr_t * symbol_insert_address ( void *  addr, symbol_group_id_t  groupId, Elf64_Symbol_Binding  binding, Elf64_Symbol_Type  type, symbol_name_t *  symbolName  )

static

Definition at line 59 of file symbol.c.

References symbol_addr_t::addr, addrAmount, addrArray, addrCapacity, symbol_name_t::addrs, symbol_addr_t::binding, symbol_addr_t::groupId, list_entry_init(), list_push_back(), malloc(), memmove_s(), symbol_addr_t::nameEntry, NULL, realloc(), and symbol_addr_t::type.

Referenced by symbol_add().

symbol_resolve_addr_unlocked()

static uint64_t symbol_resolve_addr_unlocked ( symbol_info_t *  outSymbol, void *  addr  )

static

Definition at line 110 of file symbol.c.

References symbol_addr_t::addr, symbol_info_t::addr, addrAmount, addrArray, symbol_addr_t::binding, symbol_info_t::binding, CONTAINER_OF, EINVAL, ENOENT, ERR, errno, symbol_addr_t::groupId, symbol_info_t::groupId, list_entry_t::list, symbol_name_t::name, symbol_info_t::name, symbol_addr_t::nameEntry, NULL, strncpy_s(), symbol_get_floor_index_for_addr(), SYMBOL_MAX_NAME, symbol_addr_t::type, and symbol_info_t::type.

Referenced by symbol_resolve_addr().

symbol_resolve_name_unlocked()

static uint64_t symbol_resolve_name_unlocked ( symbol_info_t *  outSymbol, const char *  name  )

static

Definition at line 138 of file symbol.c.

References symbol_addr_t::addr, symbol_info_t::addr, symbol_name_t::addrs, symbol_addr_t::binding, symbol_info_t::binding, CONTAINER_OF, CONTAINER_OF_SAFE, EINVAL, ENOENT, ERR, errno, symbol_addr_t::groupId, symbol_info_t::groupId, list_first(), list_is_empty(), map_get(), map_key_string(), symbol_name_t::name, symbol_info_t::name, nameMap, NULL, strncpy_s(), SYMBOL_MAX_NAME, symbol_addr_t::type, and symbol_info_t::type.

Referenced by symbol_add(), and symbol_resolve_name().

Variable Documentation

addrAmount

uint64_t addrAmount = 0

static

Definition at line 15 of file symbol.c.

Referenced by symbol_get_floor_index_for_addr(), symbol_insert_address(), symbol_remove_group(), and symbol_resolve_addr_unlocked().

addrArray

symbol_addr_t** addrArray = NULL

static

Definition at line 14 of file symbol.c.

Referenced by symbol_get_floor_index_for_addr(), symbol_insert_address(), symbol_remove_group(), and symbol_resolve_addr_unlocked().

addrCapacity

uint64_t addrCapacity = 0

static

Definition at line 16 of file symbol.c.

Referenced by symbol_insert_address(), and symbol_remove_group().

groupMap

map_t groupMap = MAP_CREATE

static

Definition at line 20 of file symbol.c.

Referenced by symbol_add(), and symbol_remove_group().

lock

rwlock_t lock = RWLOCK_CREATE

static

Definition at line 22 of file symbol.c.

Referenced by symbol_add(), symbol_remove_group(), symbol_resolve_addr(), and symbol_resolve_name().

nameMap

map_t nameMap = MAP_CREATE

static

Definition at line 18 of file symbol.c.

Referenced by symbol_add(), symbol_remove_group(), and symbol_resolve_name_unlocked().