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(I'm so sorry!) Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel os linux
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123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175/* 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/buildid.h>#include <linux/kernel.h>#include <linux/stddef.h>#include <linux/mm.h>#include <linux/module.h>
#include <asm/sections.h>
#define KSYM_NAME_LEN 512#define KSYM_SYMBOL_LEN (sizeof("%s+%#lx/%#lx [%s %s]") + \ (KSYM_NAME_LEN - 1) + \ 2*(BITS_PER_LONG*3/10) + (MODULE_NAME_LEN - 1) + \ (BUILD_ID_SIZE_MAX * 2) + 1)
struct cred;struct module;
static inline int is_kernel_text(unsigned long addr){ if (__is_kernel_text(addr)) return 1; return in_gate_area_no_mm(addr);}
static inline int is_kernel(unsigned long addr){ if (__is_kernel(addr)) return 1; return in_gate_area_no_mm(addr);}
static inline int is_ksym_addr(unsigned long addr){ if (IS_ENABLED(CONFIG_KALLSYMS_ALL)) return is_kernel(addr);
return is_kernel_text(addr) || is_kernel_inittext(addr);}
static inline void *dereference_symbol_descriptor(void *ptr){#ifdef CONFIG_HAVE_FUNCTION_DESCRIPTORS struct module *mod;
ptr = dereference_kernel_function_descriptor(ptr); if (is_ksym_addr((unsigned long)ptr)) return ptr;
guard(rcu)(); mod = __module_address((unsigned long)ptr);
if (mod) ptr = dereference_module_function_descriptor(mod, ptr);#endif return ptr;}
/* How and when do we show kallsyms values? */extern bool kallsyms_show_value(const struct cred *cred);
#ifdef CONFIG_KALLSYMSunsigned long kallsyms_sym_address(int idx);int kallsyms_on_each_symbol(int (*fn)(void *, const char *, unsigned long), void *data);int kallsyms_on_each_match_symbol(int (*fn)(void *, unsigned long), const char *name, void *data);
/* Lookup the address for a symbol. Returns 0 if not found. */unsigned long kallsyms_lookup_name(const char *name);
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_build_id(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);extern int sprint_backtrace_build_id(char *buffer, unsigned long address);
int lookup_symbol_name(unsigned long addr, char *symname);
#else /* !CONFIG_KALLSYMS */
static inline unsigned long kallsyms_lookup_name(const char *name){ 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_build_id(char *buffer, unsigned long address){ *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 sprint_backtrace_build_id(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 kallsyms_on_each_symbol(int (*fn)(void *, const char *, unsigned long), void *data){ return -EOPNOTSUPP;}
static inline int kallsyms_on_each_match_symbol(int (*fn)(void *, unsigned long), const char *name, void *data){ return -EOPNOTSUPP;}#endif /*CONFIG_KALLSYMS*/
static inline void print_ip_sym(const char *loglvl, unsigned long ip){ printk("%s[<%px>] %pS\n", loglvl, (void *) ip, (void *) ip);}
#endif /*_LINUX_KALLSYMS_H*/