#ifndef _KXLD_RELOC_H
#define _KXLD_RELOC_H
#include <mach/machine.h>
#include <sys/types.h>
#if KERNEL
#include <libkern/kxld_types.h>
#else
#include "kxld_types.h"
#endif
struct kxld_array;
struct kxld_dict;
struct kxld_sect;
struct kxld_seg;
struct kxld_sym;
struct kxld_symtab;
struct kxld_vtable;
struct relocation_info;
typedef struct kxld_relocator KXLDRelocator;
typedef struct kxld_reloc KXLDReloc;
typedef boolean_t (*RelocHasPair)(u_int r_type);
typedef u_int (*RelocGetPairType)(u_int prev_r_type);
typedef boolean_t (*RelocHasGot)(u_int r_type);
typedef kern_return_t(*ProcessReloc)(const KXLDRelocator *relocator,
u_char *instruction, u_int length, u_int pcrel, kxld_addr_t base_pc,
kxld_addr_t link_pc, kxld_addr_t link_disp, u_int type,
kxld_addr_t target, kxld_addr_t pair_target, boolean_t swap);
struct kxld_relocator {
RelocHasPair reloc_has_pair;
RelocGetPairType reloc_get_pair_type;
RelocHasGot reloc_has_got;
ProcessReloc process_reloc;
const struct kxld_symtab *symtab;
const struct kxld_array *sectarray;
const struct kxld_dict *vtables;
const struct kxld_vtable *current_vtable;
u_char *file;
u_int function_align;
boolean_t is_32_bit;
boolean_t swap;
boolean_t may_scatter;
};
struct kxld_reloc {
u_int address;
u_int pair_address;
u_int target;
u_int pair_target;
u_int target_type:3;
u_int pair_target_type:3;
u_int reloc_type:4;
u_int length:2;
u_int pcrel:1;
};
kern_return_t kxld_relocator_init(KXLDRelocator *relocator, u_char *file,
const struct kxld_symtab *symtab, const struct kxld_array *sectarray,
cpu_type_t cputype, cpu_subtype_t cpusubtype, boolean_t swap)
__attribute__((nonnull,visibility("hidden")));
kern_return_t kxld_reloc_create_macho(struct kxld_array *relocarray,
const KXLDRelocator *relocator, const struct relocation_info *srcs,
u_int nsrcs) __attribute__((nonnull, visibility("hidden")));
void kxld_relocator_clear(KXLDRelocator *relocator)
__attribute__((nonnull, visibility("hidden")));
boolean_t kxld_relocator_has_pair(const KXLDRelocator *relocator, u_int r_type)
__attribute__((pure, nonnull,visibility("hidden")));
u_int kxld_relocator_get_pair_type(const KXLDRelocator *relocator,
u_int last_r_type)
__attribute__((pure, nonnull,visibility("hidden")));
boolean_t kxld_relocator_has_got(const KXLDRelocator *relocator, u_int r_type)
__attribute__((pure, nonnull,visibility("hidden")));
kxld_addr_t kxld_relocator_get_pointer_at_addr(const KXLDRelocator *relocator,
const u_char *data, u_long offset)
__attribute__((pure, nonnull,visibility("hidden")));
struct kxld_sym * kxld_reloc_get_symbol(const KXLDRelocator *relocator,
const KXLDReloc *reloc, const u_char *data)
__attribute__((pure, nonnull(1,2), visibility("hidden")));
kern_return_t kxld_reloc_get_reloc_index_by_offset(const struct kxld_array *relocs,
kxld_size_t offset, u_int *idx)
__attribute__((nonnull, visibility("hidden")));
KXLDReloc * kxld_reloc_get_reloc_by_offset(const struct kxld_array *relocs,
kxld_addr_t offset)
__attribute__((pure, nonnull, visibility("hidden")));
#if KXLD_PIC_KEXTS
u_long kxld_reloc_get_macho_header_size(void)
__attribute__((pure, visibility("hidden")));
u_long kxld_reloc_get_macho_data_size(const struct kxld_array *locrelocs,
const struct kxld_array *extrelocs)
__attribute__((pure, nonnull, visibility("hidden")));
kern_return_t kxld_reloc_export_macho(const KXLDRelocator *relocator,
const struct kxld_array *locrelocs, const struct kxld_array *extrelocs,
u_char *buf, u_long *header_offset, u_long header_size,
u_long *data_offset, u_long size)
__attribute__((nonnull, visibility("hidden")));
#endif
kern_return_t kxld_reloc_update_symindex(KXLDReloc *reloc, u_int symindex)
__attribute__((nonnull,visibility("hidden")));
void kxld_relocator_set_vtables(KXLDRelocator *relocator,
const struct kxld_dict *vtables)
__attribute__((nonnull,visibility("hidden")));
kern_return_t kxld_relocator_process_sect_reloc(KXLDRelocator *relocator,
const KXLDReloc *reloc, const struct kxld_sect *sect)
__attribute__((nonnull,visibility("hidden")));
kern_return_t kxld_relocator_process_table_reloc(KXLDRelocator *relocator,
const KXLDReloc *reloc,
const struct kxld_seg *seg,
kxld_addr_t link_addr)
__attribute__((nonnull,visibility("hidden")));
#endif