elf_machdep.h

/*  $NetBSD: elf_machdep.h,v 1.19 2017/11/06 03:47:45 christos Exp $    */

#ifndef _ARM_ELF_MACHDEP_H_
#define _ARM_ELF_MACHDEP_H_

#if defined(__ARMEB__)
#define ELF32_MACHDEP_ENDIANNESS    ELFDATA2MSB
#else
#define ELF32_MACHDEP_ENDIANNESS    ELFDATA2LSB
#endif

#define ELF64_MACHDEP_ENDIANNESS    XXX /* break compilation */
#define ELF64_MACHDEP_ID_CASES                                          \
        /* no 64-bit ELF machine types supported */

/* Processor specific flags for the ELF header e_flags field.  */
#define EF_ARM_RELEXEC      0x00000001
#define EF_ARM_HASENTRY     0x00000002
#define EF_ARM_INTERWORK    0x00000004 /* GNU binutils 000413 */
#define EF_ARM_SYMSARESORTED    0x00000004 /* ARM ELF A08 */
#define EF_ARM_APCS_26      0x00000008 /* GNU binutils 000413 */
#define EF_ARM_DYNSYMSUSESEGIDX 0x00000008 /* ARM ELF B01 */
#define EF_ARM_APCS_FLOAT   0x00000010 /* GNU binutils 000413 */
#define EF_ARM_MAPSYMSFIRST 0x00000010 /* ARM ELF B01 */
#define EF_ARM_PIC      0x00000020
#define EF_ARM_ALIGN8       0x00000040 /* 8-bit structure alignment.  */
#define EF_ARM_NEW_ABI      0x00000080
#define EF_ARM_OLD_ABI      0x00000100
#define EF_ARM_SOFT_FLOAT   0x00000200
#define EF_ARM_BE8      0x00800000
#define EF_ARM_EABIMASK     0xff000000
#define EF_ARM_EABI_VER1    0x01000000
#define EF_ARM_EABI_VER2    0x02000000
#define EF_ARM_EABI_VER3    0x03000000
#define EF_ARM_EABI_VER4    0x04000000
#define EF_ARM_EABI_VER5    0x05000000

#define ELF32_MACHDEP_ID_CASES                      \
        case EM_ARM:                        \
            break;

#define ELF32_MACHDEP_ID    EM_ARM

#define KERN_ELFSIZE        32
#define ARCH_ELFSIZE        32  /* MD native binary size */

/* Processor specific relocation types */

#define R_ARM_NONE      0
#define R_ARM_PC24      1
#define R_ARM_ABS32     2
#define R_ARM_REL32     3
#define R_ARM_PC13      4
#define R_ARM_ABS16     5
#define R_ARM_ABS12     6
#define R_ARM_THM_ABS5      7
#define R_ARM_ABS8      8
#define R_ARM_SBREL32       9
#define R_ARM_THM_PC22      10
#define R_ARM_THM_PC8       11
#define R_ARM_AMP_VCALL9    12
#define R_ARM_SWI24     13
#define R_ARM_THM_SWI8      14
#define R_ARM_XPC25     15
#define R_ARM_THM_XPC22     16

/* TLS relocations */
#define R_ARM_TLS_DTPMOD32  17  /* ID of module containing symbol */
#define R_ARM_TLS_DTPOFF32  18  /* Offset in TLS block */
#define R_ARM_TLS_TPOFF32   19  /* Offset in static TLS block */

/* 20-31 are reserved for ARM Linux. */
#define R_ARM_COPY      20
#define R_ARM_GLOB_DAT      21
#define R_ARM_JUMP_SLOT     22
#define R_ARM_RELATIVE      23
#define R_ARM_GOTOFF        24
#define R_ARM_GOTPC     25
#define R_ARM_GOT32     26
#define R_ARM_PLT32     27
#define R_ARM_CALL      28
#define R_ARM_JUMP24        29
#define R_ARM_THM_JUMP24    30
#define R_ARM_BASE_ABS      31
#define R_ARM_ALU_PCREL_7_0 32
#define R_ARM_ALU_PCREL_15_8    33
#define R_ARM_ALU_PCREL_23_15   34
#define R_ARM_ALU_SBREL_11_0    35
#define R_ARM_ALU_SBREL_19_12   36
#define R_ARM_ALU_SBREL_27_20   37  // depcreated
#define R_ARM_TARGET1       38
#define R_ARM_SBREL31       39  // deprecated
#define R_ARM_V4BX      40
#define R_ARM_TARGET2       41
#define R_ARM_PREL31        42
#define R_ARM_MOVW_ABS_NC   43
#define R_ARM_MOVT_ABS      44
#define R_ARM_MOVW_PREL_NC  45
#define R_ARM_MOVT_PREL     46
#define R_ARM_THM_MOVW_ABS_NC   47
#define R_ARM_THM_MOVT_ABS  48
#define R_ARM_THM_MOVW_PREL_NC  49
#define R_ARM_THM_MOVT_PREL 50
#define R_ARM_THM_JUMP19    51

/* 96-111 are reserved to G++. */
#define R_ARM_GNU_VTENTRY   100
#define R_ARM_GNU_VTINHERIT 101
#define R_ARM_THM_PC11      102
#define R_ARM_THM_PC9       103

/* More TLS relocations */
#define R_ARM_TLS_GD32      104 /* PC-rel 32 bit for global dynamic */
#define R_ARM_TLS_LDM32     105 /* PC-rel 32 bit for local dynamic */
#define R_ARM_TLS_LDO32     106 /* 32 bit offset relative to TLS */
#define R_ARM_TLS_IE32      107 /* PC-rel 32 bit for GOT entry of */
#define R_ARM_TLS_LE32      108
#define R_ARM_TLS_LDO12     109
#define R_ARM_TLS_LE12      110
#define R_ARM_TLS_IE12GP    111

/* 112-127 are reserved for private experiments. */

#define R_ARM_IRELATIVE     160

#define R_ARM_RXPC25        249
#define R_ARM_RSBREL32      250
#define R_ARM_THM_RPC22     251
#define R_ARM_RREL32        252
#define R_ARM_RABS32        253
#define R_ARM_RPC24     254
#define R_ARM_RBASE     255

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

/* Processor specific program header flags */
#define PF_ARM_SB       0x10000000
#define PF_ARM_PI       0x20000000
#define PF_ARM_ENTRY        0x80000000

/* Processor specific program header types */
#define PT_ARM_EXIDX        (PT_LOPROC + 1)

/* Processor specific section header flags */
#define SHF_ENTRYSECT       0x10000000
#define SHF_COMDEF      0x80000000

/* Processor specific symbol types */
#define STT_ARM_TFUNC       STT_LOPROC

#ifdef _KERNEL
#ifdef ELFSIZE
#define ELF_MD_PROBE_FUNC   ELFNAME2(arm_netbsd,probe)
#define ELF_MD_COREDUMP_SETUP   ELFNAME2(arm_netbsd,coredump_setup)
#endif

struct exec_package;

int arm_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *, char *,
    vaddr_t *);
void arm_netbsd_elf32_coredump_setup(struct lwp *, void *);
#endif

#endif /* _ARM_ELF_MACHDEP_H_ */