1#ifndef _ASM_POWERPC_SECTIONS_H 2#define _ASM_POWERPC_SECTIONS_H 3#ifdef __KERNEL__ 4 5#include <linux/elf.h> 6#include <linux/uaccess.h> 7#include <asm-generic/sections.h> 8 9#ifdef __powerpc64__ 10 11extern char _end[]; 12 13static inline int in_kernel_text(unsigned long addr) 14{ 15 if (addr >= (unsigned long)_stext && addr < (unsigned long)__init_end) 16 return 1; 17 18 return 0; 19} 20 21static inline int overlaps_kernel_text(unsigned long start, unsigned long end) 22{ 23 return start < (unsigned long)__init_end && 24 (unsigned long)_stext < end; 25} 26 27#undef dereference_function_descriptor 28static inline void *dereference_function_descriptor(void *ptr) 29{ 30 struct ppc64_opd_entry *desc = ptr; 31 void *p; 32 33 if (!probe_kernel_address(&desc->funcaddr, p)) 34 ptr = p; 35 return ptr; 36} 37 38#endif 39 40#endif /* __KERNEL__ */ 41#endif /* _ASM_POWERPC_SECTIONS_H */ 42