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 11 extern char __end_interrupts[]; 12 13 extern char __prom_init_toc_start[]; 14 extern char __prom_init_toc_end[]; 15 16 static inline int in_kernel_text(unsigned long addr) 17 { 18 if (addr >= (unsigned long)_stext && addr < (unsigned long)__init_end) 19 return 1; 20 21 return 0; 22 } 23 24 static inline int overlaps_kernel_text(unsigned long start, unsigned long end) 25 { 26 return start < (unsigned long)__init_end && 27 (unsigned long)_stext < end; 28 } 29 30 #undef dereference_function_descriptor 31 static inline void *dereference_function_descriptor(void *ptr) 32 { 33 struct ppc64_opd_entry *desc = ptr; 34 void *p; 35 36 if (!probe_kernel_address(&desc->funcaddr, p)) 37 ptr = p; 38 return ptr; 39 } 40 41 #endif 42 43 #endif /* __KERNEL__ */ 44 #endif /* _ASM_POWERPC_SECTIONS_H */ 45