/* $NetBSD: elf_machdep.h,v 1.17 2025/11/29 22:03:17 jkoshy Exp $ */

#ifndef _ALPHA_ELF_MACHDEP_H_
#define _ALPHA_ELF_MACHDEP_H_

#if !defined(_SYS_ELFDEFINITIONS_H_)
/*
 * Alpha Relocation Types
 */
#define R_ALPHA_NONE            0       /* No reloc */
#define R_ALPHA_REFLONG         1       /* Direct 32 bit */
#define R_ALPHA_REFQUAD         2       /* Direct 64 bit */
#define R_ALPHA_GPREL32         3       /* GP relative 32 bit */
#define R_ALPHA_LITERAL         4       /* GP relative 16 bit w/optimization */
#define R_ALPHA_LITUSE          5       /* Optimization hint for LITERAL */
#define R_ALPHA_GPDISP          6       /* Add displacement to GP */
#define R_ALPHA_BRADDR          7       /* PC+4 relative 23 bit shifted */
#define R_ALPHA_HINT            8       /* PC+4 relative 16 bit shifted */
#define R_ALPHA_SREL16          9       /* PC relative 16 bit */
#define R_ALPHA_SREL32          10      /* PC relative 32 bit */
#define R_ALPHA_SREL64          11      /* PC relative 64 bit */
#define R_ALPHA_OP_PUSH         12      /* OP stack push */
#define R_ALPHA_OP_STORE        13      /* OP stack pop and store */
#define R_ALPHA_OP_PSUB         14      /* OP stack subtract */
#define R_ALPHA_OP_PRSHIFT      15      /* OP stack right shift */
#define R_ALPHA_GPVALUE         16
#define R_ALPHA_GPRELHIGH       17
#define R_ALPHA_GPRELLOW        18
#define R_ALPHA_IMMED_GP_16     19
#define R_ALPHA_IMMED_GP_HI32   20
#define R_ALPHA_IMMED_SCN_HI32  21
#define R_ALPHA_IMMED_BR_HI32   22
#define R_ALPHA_IMMED_LO32      23
#define R_ALPHA_COPY            24      /* Copy symbol at runtime */
#define R_ALPHA_GLOB_DAT        25      /* Create GOT entry */
#define R_ALPHA_JMP_SLOT        26      /* Create PLT entry */
#define R_ALPHA_RELATIVE        27      /* Adjust by program base */
#define R_ALPHA_BRSGP           28

/* TLS relocations */
#define R_ALPHA_TLS_GD          29
#define R_ALPHA_TLSLDM          30
#define R_ALPHA_DTPMOD64        31
#define R_ALPHA_GOTDTPREL       32
#define R_ALPHA_DTPREL64        33
#define R_ALPHA_DTPRELHI        34
#define R_ALPHA_DTPRELLO        35
#define R_ALPHA_DTPREL16        36
#define R_ALPHA_GOTTPREL        37
#define R_ALPHA_TPREL64         38
#define R_ALPHA_TPRELHI         39
#define R_ALPHA_TPRELLO         40
#define R_ALPHA_TPREL16         41

/* Alpha dynamic tags */
#define DT_ALPHA_PLTRO          0x70000000      /* secure (read-only) PLT */

#endif /* !defined(_SYS_ELFDEFINITIONS_H_) */

/*
 * Local symbols.
 */

/*
 * Alpha ELF uses different (non-standard) definitions for the symbol
 * hash table section.
 */
#define Elf_Symindx     uint64_t

#define ELF32_MACHDEP_ENDIANNESS        XXX     /* break compilation */
#define ELF32_MACHDEP_ID_CASES                                          \
                /* no 32-bit ELF machine types supported */

#define ELF64_MACHDEP_ENDIANNESS        ELFDATA2LSB
#define ELF64_MACHDEP_ID_CASES                                          \
                case EM_OLD_ALPHA:                                      \
                case EM_ALPHA:                                          \
                        break;

#define ELF64_MACHDEP_ID        EM_ALPHA

#define KERN_ELFSIZE            64
#define ARCH_ELFSIZE            64      /* MD native binary size */

#define R_TYPE(name)            __CONCAT(R_ALPHA_,name)

#endif /* _ALPHA_ELF_MACHDEP_H_ */