mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-02 08:36:39 +07:00
8d8fdf5c76
Provide a common print_ip_sym() function that prints the passed instruction pointer as well as the symbol belonging to it. Avoids adding a bunch of #ifdef CONFIG_64BIT in order to get the printk format right on 32/64 bit platforms. Acked-by: Ingo Molnar <mingo@elte.hu> Cc: Arjan van de Ven <arjan@infradead.org> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
/* 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
|
|
|
|
|
|
#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
|
|
|
|
static inline void print_symbol(const char *fmt, unsigned long addr)
|
|
{
|
|
__check_printsym_format(fmt, "");
|
|
__print_symbol(fmt, (unsigned long)
|
|
__builtin_extract_return_addr((void *)addr));
|
|
}
|
|
|
|
#ifndef CONFIG_64BIT
|
|
#define print_ip_sym(ip) \
|
|
do { \
|
|
printk("[<%08lx>]", ip); \
|
|
print_symbol(" %s\n", ip); \
|
|
} while(0)
|
|
#else
|
|
#define print_ip_sym(ip) \
|
|
do { \
|
|
printk("[<%016lx>]", ip); \
|
|
print_symbol(" %s\n", ip); \
|
|
} while(0)
|
|
#endif
|
|
|
|
#endif /*_LINUX_KALLSYMS_H*/
|