1 #ifndef _ASM_POWERPC_SECTIONS_H
2 #define _ASM_POWERPC_SECTIONS_H
6 #include <linux/uaccess.h>
7 #include <asm-generic/sections.h>
11 extern char __start_interrupts[];
12 extern char __end_interrupts[];
14 extern char __prom_init_toc_start[];
15 extern char __prom_init_toc_end[];
17 static inline int in_kernel_text(unsigned long addr)
19 if (addr >= (unsigned long)_stext && addr < (unsigned long)__init_end)
25 static inline int overlaps_interrupt_vector_text(unsigned long start,
28 unsigned long real_start, real_end;
29 real_start = __start_interrupts - _stext;
30 real_end = __end_interrupts - _stext;
32 return start < (unsigned long)__va(real_end) &&
33 (unsigned long)__va(real_start) < end;
36 static inline int overlaps_kernel_text(unsigned long start, unsigned long end)
38 return start < (unsigned long)__init_end &&
39 (unsigned long)_stext < end;
42 static inline int overlaps_kvm_tmp(unsigned long start, unsigned long end)
44 #ifdef CONFIG_KVM_GUEST
45 extern char kvm_tmp[];
46 return start < (unsigned long)kvm_tmp &&
47 (unsigned long)&kvm_tmp[1024 * 1024] < end;
53 #if !defined(_CALL_ELF) || _CALL_ELF != 2
54 #undef dereference_function_descriptor
55 static inline void *dereference_function_descriptor(void *ptr)
57 struct ppc64_opd_entry *desc = ptr;
60 if (!probe_kernel_address(&desc->funcaddr, p))
68 #endif /* __KERNEL__ */
69 #endif /* _ASM_POWERPC_SECTIONS_H */