xref: /netbsd-src/sys/arch/alpha/include/elf_machdep.h (revision 9b9c28142bdeacd1be0c57bcf83ae0ddde77a4a0)
1 /* $NetBSD: elf_machdep.h,v 1.15 2020/10/10 21:25:51 thorpej Exp $ */
2 
3 #ifndef	_ALPHA_ELF_MACHDEP_H_
4 #define	_ALPHA_ELF_MACHDEP_H_
5 
6 /*
7  * Alpha ELF uses different (non-standard) definitions for the symbol
8  * hash table section.
9  */
10 #define	Elf_Symindx	uint64_t
11 
12 #define	ELF32_MACHDEP_ENDIANNESS	XXX	/* break compilation */
13 #define	ELF32_MACHDEP_ID_CASES						\
14 		/* no 32-bit ELF machine types supported */
15 
16 #define	ELF64_MACHDEP_ENDIANNESS	ELFDATA2LSB
17 #define	ELF64_MACHDEP_ID_CASES						\
18 		case EM_OLD_ALPHA:					\
19 		case EM_ALPHA:						\
20 			break;
21 
22 #define	ELF64_MACHDEP_ID	EM_ALPHA
23 
24 #define	KERN_ELFSIZE		64
25 #define ARCH_ELFSIZE		64	/* MD native binary size */
26 
27 /*
28  * Alpha Relocation Types
29  */
30 #define	R_ALPHA_NONE		0	/* No reloc */
31 #define	R_ALPHA_REFLONG		1	/* Direct 32 bit */
32 #define	R_ALPHA_REFQUAD		2	/* Direct 64 bit */
33 #define	R_ALPHA_GPREL32		3	/* GP relative 32 bit */
34 #define	R_ALPHA_LITERAL		4	/* GP relative 16 bit w/optimization */
35 #define	R_ALPHA_LITUSE		5	/* Optimization hint for LITERAL */
36 #define	R_ALPHA_GPDISP		6	/* Add displacement to GP */
37 #define	R_ALPHA_BRADDR		7	/* PC+4 relative 23 bit shifted */
38 #define	R_ALPHA_HINT		8	/* PC+4 relative 16 bit shifted */
39 #define	R_ALPHA_SREL16		9	/* PC relative 16 bit */
40 #define	R_ALPHA_SREL32		10	/* PC relative 32 bit */
41 #define	R_ALPHA_SREL64		11	/* PC relative 64 bit */
42 #define	R_ALPHA_OP_PUSH		12	/* OP stack push */
43 #define	R_ALPHA_OP_STORE	13	/* OP stack pop and store */
44 #define	R_ALPHA_OP_PSUB		14	/* OP stack subtract */
45 #define	R_ALPHA_OP_PRSHIFT	15	/* OP stack right shift */
46 #define	R_ALPHA_GPVALUE		16
47 #define	R_ALPHA_GPRELHIGH	17
48 #define	R_ALPHA_GPRELLOW	18
49 #define	R_ALPHA_IMMED_GP_16	19
50 #define	R_ALPHA_IMMED_GP_HI32	20
51 #define	R_ALPHA_IMMED_SCN_HI32	21
52 #define	R_ALPHA_IMMED_BR_HI32	22
53 #define	R_ALPHA_IMMED_LO32	23
54 #define	R_ALPHA_COPY		24	/* Copy symbol at runtime */
55 #define	R_ALPHA_GLOB_DAT	25	/* Create GOT entry */
56 #define	R_ALPHA_JMP_SLOT	26	/* Create PLT entry */
57 #define	R_ALPHA_RELATIVE	27	/* Adjust by program base */
58 #define	R_ALPHA_BRSGP		28
59 
60 /* TLS relocations */
61 #define	R_ALPHA_TLS_GD		29
62 #define	R_ALPHA_TLSLDM		30
63 #define	R_ALPHA_DTPMOD64	31
64 #define	R_ALPHA_GOTDTPREL	32
65 #define	R_ALPHA_DTPREL64	33
66 #define	R_ALPHA_DTPRELHI	34
67 #define	R_ALPHA_DTPRELLO	35
68 #define	R_ALPHA_DTPREL16	36
69 #define	R_ALPHA_GOTTPREL	37
70 #define	R_ALPHA_TPREL64		38
71 #define	R_ALPHA_TPRELHI		39
72 #define	R_ALPHA_TPRELLO		40
73 #define	R_ALPHA_TPREL16		41
74 
75 #define	R_TYPE(name)		__CONCAT(R_ALPHA_,name)
76 
77 #endif /* _ALPHA_ELF_MACHDEP_H_ */
78