mirror of
https://github.com/rd-stuffs/msm-4.14.git
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f6544e0d12
[AK: This seems like a ticking time bomb even without LTO, so should be merged now. It causes very weird problems. Thanks to Joe for tracking them down.] With the added postfixes that LTO adds for local symbols, the longest name in the kernel overflows the namebuf[KSYM_NAME_LEN] array by two bytes. That name is: __pci_fixup_resumePCI_VENDOR_ID_SERVERWORKSPCI_DEVICE_ID_SERVERWORKS_HT1000SBquirk_disable_broadcom_boot_interrupt.1488004.672802 Double the max symbol name length. Change-Id: If0de3fba1a366855492bdfe28859ba8d0a76b62d Signed-off-by: Andi Kleen <ak@linux.intel.com> Signed-off-by: Cyber Knight <cyberknight755@gmail.com> Signed-off-by: Richard Raya <rdxzv.dev@gmail.com>
130 lines
3.4 KiB
C
130 lines
3.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/* Rewritten and vastly simplified by Rusty Russell for in-kernel
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* module loader:
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* Copyright 2002 Rusty Russell <rusty@rustcorp.com.au> 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 256
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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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#ifdef CONFIG_KALLSYMS
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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 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)
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#endif /*CONFIG_KALLSYMS*/
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/* This macro allows us to keep printk typechecking */
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static __printf(1, 2)
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void __check_printsym_format(const char *fmt, ...)
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{
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}
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static inline void print_symbol(const char *fmt, unsigned long addr)
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{
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__check_printsym_format(fmt, "");
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__print_symbol(fmt, (unsigned long)
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__builtin_extract_return_addr((void *)addr));
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}
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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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