arch/powerpc/include/asm/sections.h

   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 */