mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-28 11:18:45 +07:00
668533dc07
The conditional kallsym hex printing used a special fixed-width '%lx' output (KALLSYM_FMT) in preparation for the hashing of %p, but that series ended up adding a %px specifier to help with the conversions. Use it, and avoid the "print pointer as an unsigned long" code. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
138 lines
3.6 KiB
C
138 lines
3.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/* 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/errno.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/stddef.h>
|
|
|
|
#define KSYM_NAME_LEN 128
|
|
#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \
|
|
2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1)
|
|
|
|
struct module;
|
|
|
|
#ifdef CONFIG_KALLSYMS
|
|
/* Lookup the address for a symbol. Returns 0 if not found. */
|
|
unsigned long kallsyms_lookup_name(const char *name);
|
|
|
|
/* Call a function on each kallsyms symbol in the core kernel */
|
|
int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *,
|
|
unsigned long),
|
|
void *data);
|
|
|
|
extern int kallsyms_lookup_size_offset(unsigned long addr,
|
|
unsigned long *symbolsize,
|
|
unsigned long *offset);
|
|
|
|
/* 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);
|
|
|
|
/* Look up a kernel symbol and return it in a text buffer. */
|
|
extern int sprint_symbol(char *buffer, unsigned long address);
|
|
extern int sprint_symbol_no_offset(char *buffer, unsigned long address);
|
|
extern int sprint_backtrace(char *buffer, unsigned long address);
|
|
|
|
/* Look up a kernel symbol and print it to the kernel messages. */
|
|
extern void __print_symbol(const char *fmt, unsigned long address);
|
|
|
|
int lookup_symbol_name(unsigned long addr, char *symname);
|
|
int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name);
|
|
|
|
/* How and when do we show kallsyms values? */
|
|
extern int kallsyms_show_value(void);
|
|
|
|
#else /* !CONFIG_KALLSYMS */
|
|
|
|
static inline unsigned long kallsyms_lookup_name(const char *name)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *,
|
|
struct module *,
|
|
unsigned long),
|
|
void *data)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline int kallsyms_lookup_size_offset(unsigned long addr,
|
|
unsigned long *symbolsize,
|
|
unsigned long *offset)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static inline const char *kallsyms_lookup(unsigned long addr,
|
|
unsigned long *symbolsize,
|
|
unsigned long *offset,
|
|
char **modname, char *namebuf)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
static inline int sprint_symbol(char *buffer, unsigned long addr)
|
|
{
|
|
*buffer = '\0';
|
|
return 0;
|
|
}
|
|
|
|
static inline int sprint_symbol_no_offset(char *buffer, unsigned long addr)
|
|
{
|
|
*buffer = '\0';
|
|
return 0;
|
|
}
|
|
|
|
static inline int sprint_backtrace(char *buffer, unsigned long addr)
|
|
{
|
|
*buffer = '\0';
|
|
return 0;
|
|
}
|
|
|
|
static inline int lookup_symbol_name(unsigned long addr, char *symname)
|
|
{
|
|
return -ERANGE;
|
|
}
|
|
|
|
static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name)
|
|
{
|
|
return -ERANGE;
|
|
}
|
|
|
|
static inline int kallsyms_show_value(void)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
/* 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 __printf(1, 2)
|
|
void __check_printsym_format(const char *fmt, ...)
|
|
{
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
static inline void print_ip_sym(unsigned long ip)
|
|
{
|
|
printk("[<%p>] %pS\n", (void *) ip, (void *) ip);
|
|
}
|
|
|
|
#endif /*_LINUX_KALLSYMS_H*/
|