source: rtems/cpukit/score/cpu/arm/include/machine/elf_machdep.h @ 4408603

/*      $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_ */