|  | /* SPDX-License-Identifier: GPL-2.0 */ | 
|  | #ifndef _LINUX_BUILDID_H | 
|  | #define _LINUX_BUILDID_H | 
|  |  | 
|  | #include <linux/mm_types.h> | 
|  |  | 
|  | #define BUILD_ID_SIZE_MAX 20 | 
|  |  | 
|  | int build_id_parse(struct vm_area_struct *vma, unsigned char *build_id, | 
|  | __u32 *size); | 
|  | int build_id_parse_buf(const void *buf, unsigned char *build_id, u32 buf_size); | 
|  |  | 
|  | #if IS_ENABLED(CONFIG_STACKTRACE_BUILD_ID) || IS_ENABLED(CONFIG_CRASH_CORE) | 
|  | extern unsigned char vmlinux_build_id[BUILD_ID_SIZE_MAX]; | 
|  | void init_vmlinux_build_id(void); | 
|  | #else | 
|  | static inline void init_vmlinux_build_id(void) { } | 
|  | #endif | 
|  |  | 
|  | #endif |