xref: /freebsd/usr.sbin/kldxref/ef.h (revision 757686b1)
1 /* $FreeBSD$ */
2 
3 #ifndef _EF_H_
4 #define _EF_H_
5 
6 #define	EFT_KLD		1
7 #define	EFT_KERNEL	2
8 
9 #define EF_RELOC_REL	1
10 #define EF_RELOC_RELA	2
11 
12 #define EF_GET_TYPE(ef) \
13     (ef)->ef_ops->get_type((ef)->ef_ef)
14 #define EF_CLOSE(ef) \
15     (ef)->ef_ops->close((ef)->ef_ef)
16 #define EF_READ(ef, offset, len, dest) \
17     (ef)->ef_ops->read((ef)->ef_ef, offset, len, dest)
18 #define EF_READ_ENTRY(ef, offset, len, ptr) \
19     (ef)->ef_ops->read_entry((ef)->ef_ef, offset, len, ptr)
20 #define EF_SEG_READ(ef, offset, len, dest) \
21     (ef)->ef_ops->seg_read((ef)->ef_ef, offset, len, dest)
22 #define EF_SEG_READ_REL(ef, offset, len, dest) \
23     (ef)->ef_ops->seg_read_rel((ef)->ef_ef, offset, len, dest)
24 #define EF_SEG_READ_ENTRY(ef, offset, len, ptr) \
25     (ef)->ef_ops->seg_read_entry((ef)->kf_ef, offset, len, ptr)
26 #define EF_SEG_READ_ENTRY_REL(ef, offset, len, ptr) \
27     (ef)->ef_ops->seg_read_entry_rel((ef)->ef_ef, offset, len, ptr)
28 #define EF_SYMADDR(ef, symidx) \
29     (ef)->ef_ops->symaddr((ef)->ef_ef, symidx)
30 #define EF_LOOKUP_SET(ef, name, startp, stopp, countp) \
31     (ef)->ef_ops->lookup_set((ef)->ef_ef, name, startp, stopp, countp)
32 #define EF_LOOKUP_SYMBOL(ef, name, sym) \
33     (ef)->ef_ops->lookup_symbol((ef)->ef_ef, name, sym)
34 
35 /* XXX, should have a different name. */
36 typedef struct ef_file *elf_file_t;
37 
38 struct elf_file_ops {
39 	int (*get_type)(elf_file_t ef);
40 	int (*close)(elf_file_t ef);
41 	int (*read)(elf_file_t ef, Elf_Off offset, size_t len, void* dest);
42 	int (*read_entry)(elf_file_t ef, Elf_Off offset, size_t len,
43 	    void **ptr);
44 	int (*seg_read)(elf_file_t ef, Elf_Off offset, size_t len, void *dest);
45 	int (*seg_read_rel)(elf_file_t ef, Elf_Off offset, size_t len,
46 	    void *dest);
47 	int (*seg_read_entry)(elf_file_t ef, Elf_Off offset, size_t len,
48 	    void**ptr);
49 	int (*seg_read_entry_rel)(elf_file_t ef, Elf_Off offset, size_t len,
50 	    void**ptr);
51 	Elf_Addr (*symaddr)(elf_file_t ef, Elf_Size symidx);
52 	int (*lookup_set)(elf_file_t ef, const char *name, long *startp,
53 	    long *stopp, long *countp);
54 	int (*lookup_symbol)(elf_file_t ef, const char* name, Elf_Sym** sym);
55 };
56 
57 struct elf_file {
58 	elf_file_t ef_ef;
59 	struct elf_file_ops *ef_ops;
60 };
61 
62 __BEGIN_DECLS
63 int ef_open(const char *filename, struct elf_file *ef, int verbose);
64 int ef_obj_open(const char *filename, struct elf_file *ef, int verbose);
65 int ef_reloc(struct elf_file *ef, const void *reldata, int reltype,
66     Elf_Off relbase, Elf_Off dataoff, size_t len, void *dest);
67 __END_DECLS
68 
69 #endif /* _EF_H_*/
70