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134 lines
4.0 KiB
134 lines
4.0 KiB
/* Rewritten and vastly simplified by Rusty Russell for in-kernel |
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* module loader: |
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* Copyright 2002 Rusty Russell <[email protected]> IBM Corporation |
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*/ |
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#ifndef _LINUX_KALLSYMS_H |
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#define _LINUX_KALLSYMS_H |
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#include <linux/errno.h> |
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#include <linux/kernel.h> |
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#include <linux/stddef.h> |
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#define KSYM_NAME_LEN 128 |
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#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s]") + (KSYM_NAME_LEN - 1) + \ |
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2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + 1) |
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struct module; |
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#if !defined(__INCLUDED_BY_HIDESYM) || !defined(CONFIG_KALLSYMS) |
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#if defined(CONFIG_KALLSYMS) && !defined(CONFIG_GRKERNSEC_HIDESYM) |
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/* Lookup the address for a symbol. Returns 0 if not found. */ |
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unsigned long kallsyms_lookup_name(const char *name); |
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/* Call a function on each kallsyms symbol in the core kernel */ |
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int kallsyms_on_each_symbol(int (*fn)(void *, const char *, struct module *, |
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unsigned long), |
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void *data); |
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extern int kallsyms_lookup_size_offset(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset); |
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/* Lookup an address. modname is set to NULL if it's in the kernel. */ |
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const char *kallsyms_lookup(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset, |
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char **modname, char *namebuf); |
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/* Look up a kernel symbol and return it in a text buffer. */ |
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extern int sprint_symbol(char *buffer, unsigned long address); |
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extern int sprint_symbol_no_offset(char *buffer, unsigned long address); |
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extern int sprint_backtrace(char *buffer, unsigned long address); |
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/* Look up a kernel symbol and print it to the kernel messages. */ |
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extern __printf(1, 3) void __print_symbol(const char *fmt, unsigned long address, ...); |
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int lookup_symbol_name(unsigned long addr, char *symname); |
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int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name); |
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#else /* !CONFIG_KALLSYMS */ |
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static inline unsigned long kallsyms_lookup_name(const char *name) |
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{ |
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return 0; |
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} |
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static inline int kallsyms_on_each_symbol(int (*fn)(void *, const char *, |
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struct module *, |
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unsigned long), |
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void *data) |
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{ |
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return 0; |
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} |
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static inline int kallsyms_lookup_size_offset(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset) |
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{ |
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return 0; |
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} |
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static inline const char *kallsyms_lookup(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset, |
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char **modname, char *namebuf) |
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{ |
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return NULL; |
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} |
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static inline int sprint_symbol(char *buffer, unsigned long addr) |
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{ |
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*buffer = '\0'; |
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return 0; |
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} |
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static inline int sprint_symbol_no_offset(char *buffer, unsigned long addr) |
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{ |
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*buffer = '\0'; |
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return 0; |
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} |
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static inline int sprint_backtrace(char *buffer, unsigned long addr) |
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{ |
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*buffer = '\0'; |
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return 0; |
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} |
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static inline int lookup_symbol_name(unsigned long addr, char *symname) |
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{ |
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return -ERANGE; |
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} |
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static inline int lookup_symbol_attrs(unsigned long addr, unsigned long *size, unsigned long *offset, char *modname, char *name) |
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{ |
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return -ERANGE; |
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} |
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/* Stupid that this does nothing, but I didn't create this mess. */ |
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#define __print_symbol(fmt, addr, args...) |
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#endif /*CONFIG_KALLSYMS*/ |
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#else /* when included by kallsyms.c, vsnprintf.c, kprobes.c, or |
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arch/x86/kernel/dumpstack.c, with HIDESYM enabled */ |
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extern unsigned long kallsyms_lookup_name(const char *name); |
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extern __printf(1, 3) void __print_symbol(const char *fmt, unsigned long address, ...); |
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extern int sprint_backtrace(char *buffer, unsigned long address); |
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extern int sprint_symbol(char *buffer, unsigned long address); |
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extern int sprint_symbol_no_offset(char *buffer, unsigned long address); |
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const char *kallsyms_lookup(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset, |
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char **modname, char *namebuf); |
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extern int kallsyms_lookup_size_offset(unsigned long addr, |
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unsigned long *symbolsize, |
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unsigned long *offset); |
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#endif |
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#define print_symbol(fmt, addr) \ |
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__print_symbol(fmt, addr, "") |
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static inline void print_ip_sym(unsigned long ip) |
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{ |
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printk("[<%p>] %pS\n", (void *) ip, (void *) ip); |
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} |
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#endif /*_LINUX_KALLSYMS_H*/
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