kallsyms.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:2k
- /* Rewritten and vastly simplified by Rusty Russell for in-kernel
- * module loader:
- * Copyright 2002 Rusty Russell <rusty@rustcorp.com.au> IBM Corporation
- */
- #ifndef _LINUX_KALLSYMS_H
- #define _LINUX_KALLSYMS_H
- #include <linux/config.h>
- #define KSYM_NAME_LEN 127
- #ifdef CONFIG_KALLSYMS
- /* Lookup the address for a symbol. Returns 0 if not found. */
- unsigned long kallsyms_lookup_name(const char *name);
- /* Lookup an address. modname is set to NULL if it's in the kernel. */
- const char *kallsyms_lookup(unsigned long addr,
- unsigned long *symbolsize,
- unsigned long *offset,
- char **modname, char *namebuf);
- /* Replace "%s" in format with address, if found */
- extern void __print_symbol(const char *fmt, unsigned long address);
- #else /* !CONFIG_KALLSYMS */
- static inline unsigned long kallsyms_lookup_name(const char *name)
- {
- return 0;
- }
- static inline const char *kallsyms_lookup(unsigned long addr,
- unsigned long *symbolsize,
- unsigned long *offset,
- char **modname, char *namebuf)
- {
- return NULL;
- }
- /* Stupid that this does nothing, but I didn't create this mess. */
- #define __print_symbol(fmt, addr)
- #endif /*CONFIG_KALLSYMS*/
- /* This macro allows us to keep printk typechecking */
- static void __check_printsym_format(const char *fmt, ...)
- __attribute__((format(printf,1,2)));
- static inline void __check_printsym_format(const char *fmt, ...)
- {
- }
- /* ia64 and ppc64 use function descriptors, which contain the real address */
- #if defined(CONFIG_IA64) || defined(CONFIG_PPC64)
- #define print_fn_descriptor_symbol(fmt, addr)
- do {
- unsigned long *__faddr = (unsigned long*) addr;
- print_symbol(fmt, __faddr[0]);
- } while (0)
- #else
- #define print_fn_descriptor_symbol(fmt, addr) print_symbol(fmt, addr)
- #endif
- #define print_symbol(fmt, addr)
- do {
- __check_printsym_format(fmt, "");
- __print_symbol(fmt, addr);
- } while(0)
- #endif /*_LINUX_KALLSYMS_H*/