[deliverable/binutils-gdb.git] / include / elf / arm.h

/* ARM ELF support for BFD.
   Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010
   Free Software Foundation, Inc.

   This file is part of BFD, the Binary File Descriptor library.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software Foundation,
   Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */

#ifndef _ELF_ARM_H
#define _ELF_ARM_H

#include "elf/reloc-macros.h"

/* Processor specific flags for the ELF header e_flags field.  */
#define EF_ARM_RELEXEC     0x01
#define EF_ARM_HASENTRY    0x02
#define EF_ARM_INTERWORK   0x04
#define EF_ARM_APCS_26     0x08
#define EF_ARM_APCS_FLOAT  0x10
#define EF_ARM_PIC         0x20
#define EF_ARM_ALIGN8	   0x40		/* 8-bit structure alignment is in use.  */
#define EF_ARM_NEW_ABI     0x80
#define EF_ARM_OLD_ABI     0x100
#define EF_ARM_SOFT_FLOAT  0x200
#define EF_ARM_VFP_FLOAT   0x400
#define EF_ARM_MAVERICK_FLOAT 0x800

/* Frame unwind information */
#define PT_ARM_EXIDX (PT_LOPROC + 1)

/* Other constants defined in the ARM ELF spec. version B-01.  */
#define EF_ARM_SYMSARESORTED 0x04	/* NB conflicts with EF_INTERWORK.  */
#define EF_ARM_DYNSYMSUSESEGIDX 0x08	/* NB conflicts with EF_APCS26.  */
#define EF_ARM_MAPSYMSFIRST 0x10	/* NB conflicts with EF_APCS_FLOAT.  */
#define EF_ARM_EABIMASK      0xFF000000

/* New constants defined in the ARM ELF spec. version XXX.
   Only valid in conjunction with EF_ARM_EABI_VER5. */
#define EF_ARM_ABI_FLOAT_SOFT 0x200	/* NB conflicts with EF_ARM_SOFT_FLOAT.  */
#define EF_ARM_ABI_FLOAT_HARD 0x400	/* NB conflicts with EF_ARM_VFP_FLOAT.  */

/* Constants defined in AAELF.  */
#define EF_ARM_BE8	    0x00800000
#define EF_ARM_LE8	    0x00400000

#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
#define EF_ARM_EABI_UNKNOWN  0x00000000
#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

/* Local aliases for some flags to match names used by COFF port.  */
#define F_INTERWORK	   EF_ARM_INTERWORK
#define F_APCS26	   EF_ARM_APCS_26
#define F_APCS_FLOAT	   EF_ARM_APCS_FLOAT
#define F_PIC              EF_ARM_PIC
#define F_SOFT_FLOAT	   EF_ARM_SOFT_FLOAT
#define F_VFP_FLOAT	   EF_ARM_VFP_FLOAT

/* Additional symbol types for Thumb.  */
#define STT_ARM_TFUNC      STT_LOPROC   /* A Thumb function.  */
#define STT_ARM_16BIT      STT_HIPROC   /* A Thumb label.  */

/* Additional section types.  */
#define SHT_ARM_EXIDX	       0x70000001	/* Section holds ARM unwind info.  */
#define SHT_ARM_PREEMPTMAP     0x70000002	/* Section pre-emption details.  */
#define SHT_ARM_ATTRIBUTES     0x70000003	/* Section holds attributes.  */
#define SHT_ARM_DEBUGOVERLAY   0x70000004	/* Section holds overlay debug info.  */
#define SHT_ARM_OVERLAYSECTION 0x70000005	/* Section holds GDB and overlay integration info.  */

/* ARM-specific values for sh_flags.  */
#define SHF_ENTRYSECT      0x10000000   /* Section contains an entry point.  */
#define SHF_COMDEF         0x80000000   /* Section may be multiply defined in the input to a link step.  */

/* ARM-specific program header flags.  */
#define PF_ARM_SB          0x10000000   /* Segment contains the location addressed by the static base.  */
#define PF_ARM_PI          0x20000000   /* Segment is position-independent.  */
#define PF_ARM_ABS         0x40000000   /* Segment must be loaded at its base address.  */

/* Values for the Tag_CPU_arch EABI attribute.  */
#define TAG_CPU_ARCH_PRE_V4	0
#define TAG_CPU_ARCH_V4		1
#define TAG_CPU_ARCH_V4T	2
#define TAG_CPU_ARCH_V5T	3
#define TAG_CPU_ARCH_V5TE	4
#define TAG_CPU_ARCH_V5TEJ	5
#define TAG_CPU_ARCH_V6		6
#define TAG_CPU_ARCH_V6KZ	7
#define TAG_CPU_ARCH_V6T2	8
#define TAG_CPU_ARCH_V6K	9
#define TAG_CPU_ARCH_V7		10
#define TAG_CPU_ARCH_V6_M	11
#define TAG_CPU_ARCH_V6S_M	12
#define TAG_CPU_ARCH_V7E_M	13
#define TAG_CPU_ARCH_V8		14
#define MAX_TAG_CPU_ARCH	14
/* Pseudo-architecture to allow objects to be compatible with the subset of
   armv4t and armv6-m.  This value should never be stored in object files.  */
#define TAG_CPU_ARCH_V4T_PLUS_V6_M (MAX_TAG_CPU_ARCH + 1)

/* Relocation types.  */

START_RELOC_NUMBERS (elf_arm_reloc_type)
/* AAELF official names and numbers.  */
  RELOC_NUMBER (R_ARM_NONE,            	  0)
  RELOC_NUMBER (R_ARM_PC24,            	  1)   /* deprecated */
  RELOC_NUMBER (R_ARM_ABS32,           	  2)
  RELOC_NUMBER (R_ARM_REL32,           	  3)
  RELOC_NUMBER (R_ARM_LDR_PC_G0,       	  4)
  RELOC_NUMBER (R_ARM_ABS16,           	  5)
  RELOC_NUMBER (R_ARM_ABS12,           	  6)
  RELOC_NUMBER (R_ARM_THM_ABS5,        	  7)
  RELOC_NUMBER (R_ARM_ABS8,            	  8)
  RELOC_NUMBER (R_ARM_SBREL32,         	  9)
  RELOC_NUMBER (R_ARM_THM_CALL,        	 10)
  RELOC_NUMBER (R_ARM_THM_PC8,         	 11)
  RELOC_NUMBER (R_ARM_BREL_ADJ,	       	 12)
  RELOC_NUMBER (R_ARM_TLS_DESC,          13)
  RELOC_NUMBER (R_ARM_THM_SWI8,        	 14)   /* obsolete */
  RELOC_NUMBER (R_ARM_XPC25,           	 15)   /* obsolete */
  RELOC_NUMBER (R_ARM_THM_XPC22,       	 16)   /* obsolete */
  RELOC_NUMBER (R_ARM_TLS_DTPMOD32,    	 17)
  RELOC_NUMBER (R_ARM_TLS_DTPOFF32,    	 18)
  RELOC_NUMBER (R_ARM_TLS_TPOFF32,     	 19)
  RELOC_NUMBER (R_ARM_COPY,            	 20)   /* Copy symbol at runtime.  */
  RELOC_NUMBER (R_ARM_GLOB_DAT,        	 21)   /* Create GOT entry.  */
  RELOC_NUMBER (R_ARM_JUMP_SLOT,       	 22)   /* Create PLT entry.  */
  RELOC_NUMBER (R_ARM_RELATIVE,        	 23)   /* Adjust by program base.  */
  RELOC_NUMBER (R_ARM_GOTOFF32,        	 24)   /* 32 bit offset to GOT.  */
  RELOC_NUMBER (R_ARM_BASE_PREL,       	 25)   /* 32 bit PC relative offset to GOT.  */
  RELOC_NUMBER (R_ARM_GOT_BREL,        	 26)   /* 32 bit GOT entry.  */
  RELOC_NUMBER (R_ARM_PLT32,           	 27)   /* deprecated - 32 bit PLT address.  */
  RELOC_NUMBER (R_ARM_CALL,            	 28)
  RELOC_NUMBER (R_ARM_JUMP24,          	 29)
  RELOC_NUMBER (R_ARM_THM_JUMP24,      	 30)
  RELOC_NUMBER (R_ARM_BASE_ABS,        	 31)
  RELOC_NUMBER (R_ARM_ALU_PCREL7_0,    	 32)   /* obsolete */
  RELOC_NUMBER (R_ARM_ALU_PCREL15_8,   	 33)   /* obsolete */
  RELOC_NUMBER (R_ARM_ALU_PCREL23_15,  	 34)   /* obsolete */
  RELOC_NUMBER (R_ARM_LDR_SBREL_11_0,  	 35)   /* deprecated, should have _NC suffix */
  RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 	 36)   /* deprecated, should have _NC suffix */
  RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 	 37)   /* deprecated, should have _CK suffix */
  RELOC_NUMBER (R_ARM_TARGET1,         	 38)
  RELOC_NUMBER (R_ARM_SBREL31,         	 39)   /* deprecated */
  RELOC_NUMBER (R_ARM_V4BX,            	 40)
  RELOC_NUMBER (R_ARM_TARGET2,	       	 41)
  RELOC_NUMBER (R_ARM_PREL31,	       	 42)
  RELOC_NUMBER (R_ARM_MOVW_ABS_NC,     	 43)
  RELOC_NUMBER (R_ARM_MOVT_ABS,        	 44)
  RELOC_NUMBER (R_ARM_MOVW_PREL_NC,    	 45)
  RELOC_NUMBER (R_ARM_MOVT_PREL,       	 46)
  RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 	 47)
  RELOC_NUMBER (R_ARM_THM_MOVT_ABS,    	 48)
  RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC,	 49)
  RELOC_NUMBER (R_ARM_THM_MOVT_PREL,   	 50)
  RELOC_NUMBER (R_ARM_THM_JUMP19,      	 51)
  RELOC_NUMBER (R_ARM_THM_JUMP6,       	 52)
  RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
  RELOC_NUMBER (R_ARM_THM_PC12,        	 54)
  RELOC_NUMBER (R_ARM_ABS32_NOI,       	 55)
  RELOC_NUMBER (R_ARM_REL32_NOI,       	 56)
  RELOC_NUMBER (R_ARM_ALU_PC_G0_NC,      57)
  RELOC_NUMBER (R_ARM_ALU_PC_G0,         58)
  RELOC_NUMBER (R_ARM_ALU_PC_G1_NC,      59)
  RELOC_NUMBER (R_ARM_ALU_PC_G1,         60)
  RELOC_NUMBER (R_ARM_ALU_PC_G2,         61)
  RELOC_NUMBER (R_ARM_LDR_PC_G1,         62)
  RELOC_NUMBER (R_ARM_LDR_PC_G2,         63)
  RELOC_NUMBER (R_ARM_LDRS_PC_G0,        64)
  RELOC_NUMBER (R_ARM_LDRS_PC_G1,        65)
  RELOC_NUMBER (R_ARM_LDRS_PC_G2,        66)
  RELOC_NUMBER (R_ARM_LDC_PC_G0,         67)
  RELOC_NUMBER (R_ARM_LDC_PC_G1,         68)
  RELOC_NUMBER (R_ARM_LDC_PC_G2,         69)
  RELOC_NUMBER (R_ARM_ALU_SB_G0_NC,      70)
  RELOC_NUMBER (R_ARM_ALU_SB_G0,         71)
  RELOC_NUMBER (R_ARM_ALU_SB_G1_NC,      72)
  RELOC_NUMBER (R_ARM_ALU_SB_G1,         73)
  RELOC_NUMBER (R_ARM_ALU_SB_G2,         74)
  RELOC_NUMBER (R_ARM_LDR_SB_G0,         75)
  RELOC_NUMBER (R_ARM_LDR_SB_G1,         76)
  RELOC_NUMBER (R_ARM_LDR_SB_G2,         77)
  RELOC_NUMBER (R_ARM_LDRS_SB_G0,        78)
  RELOC_NUMBER (R_ARM_LDRS_SB_G1,        79)
  RELOC_NUMBER (R_ARM_LDRS_SB_G2,        80)
  RELOC_NUMBER (R_ARM_LDC_SB_G0,         81)
  RELOC_NUMBER (R_ARM_LDC_SB_G1,         82)
  RELOC_NUMBER (R_ARM_LDC_SB_G2,         83)
  RELOC_NUMBER (R_ARM_MOVW_BREL_NC,    	 84)
  RELOC_NUMBER (R_ARM_MOVT_BREL,       	 85)
  RELOC_NUMBER (R_ARM_MOVW_BREL,       	 86)
  RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC,	 87)
  RELOC_NUMBER (R_ARM_THM_MOVT_BREL,   	 88)
  RELOC_NUMBER (R_ARM_THM_MOVW_BREL,   	 89)
  RELOC_NUMBER (R_ARM_TLS_GOTDESC,       90)
  RELOC_NUMBER (R_ARM_TLS_CALL,          91)
  RELOC_NUMBER (R_ARM_TLS_DESCSEQ,       92)
  RELOC_NUMBER (R_ARM_THM_TLS_CALL,      93)
  RELOC_NUMBER (R_ARM_PLT32_ABS,       	 94)
  RELOC_NUMBER (R_ARM_GOT_ABS,	       	 95)
  RELOC_NUMBER (R_ARM_GOT_PREL,	       	 96)
  RELOC_NUMBER (R_ARM_GOT_BREL12,      	 97)
  RELOC_NUMBER (R_ARM_GOTOFF12,	       	 98)
  RELOC_NUMBER (R_ARM_GOTRELAX,	       	 99)
  RELOC_NUMBER (R_ARM_GNU_VTENTRY,    	100)   /* deprecated - old C++ abi */
  RELOC_NUMBER (R_ARM_GNU_VTINHERIT,  	101)   /* deprecated - old C++ abi */
  RELOC_NUMBER (R_ARM_THM_JUMP11,     	102)
  RELOC_NUMBER (R_ARM_THM_JUMP8,      	103)
  RELOC_NUMBER (R_ARM_TLS_GD32,	      	104)
  RELOC_NUMBER (R_ARM_TLS_LDM32,      	105)
  RELOC_NUMBER (R_ARM_TLS_LDO32,      	106)
  RELOC_NUMBER (R_ARM_TLS_IE32,       	107)
  RELOC_NUMBER (R_ARM_TLS_LE32,	      	108)
  RELOC_NUMBER (R_ARM_TLS_LDO12,      	109)
  RELOC_NUMBER (R_ARM_TLS_LE12,	      	110)
  RELOC_NUMBER (R_ARM_TLS_IE12GP,     	111)
  /* 112 - 127 private range */
  RELOC_NUMBER (R_ARM_ME_TOO,	        128)   /* obsolete */
  RELOC_NUMBER (R_ARM_THM_TLS_DESCSEQ  ,129)

  RELOC_NUMBER (R_ARM_IRELATIVE,      	160)

  /* Extensions?  R=read-only?  */
  RELOC_NUMBER (R_ARM_RXPC25,         	249)
  RELOC_NUMBER (R_ARM_RSBREL32,       	250)
  RELOC_NUMBER (R_ARM_THM_RPC22,      	251)
  RELOC_NUMBER (R_ARM_RREL32,         	252)
  RELOC_NUMBER (R_ARM_RABS32,         	253)
  RELOC_NUMBER (R_ARM_RPC24,          	254)
  RELOC_NUMBER (R_ARM_RBASE,          	255)

  /* Unofficial names for some of the relocs.  */
  FAKE_RELOC (R_ARM_GOTOFF,             R_ARM_GOTOFF32)   /* 32 bit offset to GOT.  */
  FAKE_RELOC (R_ARM_THM_PC22,           R_ARM_THM_CALL)
  FAKE_RELOC (R_ARM_THM_PC11,           R_ARM_THM_JUMP11)
  FAKE_RELOC (R_ARM_THM_PC9,            R_ARM_THM_JUMP8)

  /* Relocs with both a different name, and (apparently) different meaning in
     GNU usage.  */
  FAKE_RELOC (R_ARM_GOTPC,              R_ARM_BASE_PREL)  /* 32 bit PC relative offset to GOT.  */
  FAKE_RELOC (R_ARM_GOT32,              R_ARM_GOT_BREL)   /* 32 bit GOT entry.  */
  FAKE_RELOC (R_ARM_ROSEGREL32,         R_ARM_SBREL31)    /* ??? */
  FAKE_RELOC (R_ARM_AMP_VCALL9,         R_ARM_BREL_ADJ)   /* Thumb-something.  Not used.  */

END_RELOC_NUMBERS (R_ARM_max = 256)

#ifdef BFD_ARCH_SIZE
/* EABI object attributes.  */

enum
{
  /* 0-3 are generic.  */
  Tag_CPU_raw_name = 4,
  Tag_CPU_name,
  Tag_CPU_arch,
  Tag_CPU_arch_profile,
  Tag_ARM_ISA_use,
  Tag_THUMB_ISA_use,
  Tag_FP_arch,
  Tag_WMMX_arch,
  Tag_Advanced_SIMD_arch,
  Tag_PCS_config,
  Tag_ABI_PCS_R9_use,
  Tag_ABI_PCS_RW_data,
  Tag_ABI_PCS_RO_data,
  Tag_ABI_PCS_GOT_use,
  Tag_ABI_PCS_wchar_t,
  Tag_ABI_FP_rounding,
  Tag_ABI_FP_denormal,
  Tag_ABI_FP_exceptions,
  Tag_ABI_FP_user_exceptions,
  Tag_ABI_FP_number_model,
  Tag_ABI_align_needed,
  Tag_ABI_align_preserved,
  Tag_ABI_enum_size,
  Tag_ABI_HardFP_use,
  Tag_ABI_VFP_args,
  Tag_ABI_WMMX_args,
  Tag_ABI_optimization_goals,
  Tag_ABI_FP_optimization_goals,
  /* 32 is generic (Tag_compatibility).  */
  Tag_undefined33 = 33,
  Tag_CPU_unaligned_access,
  Tag_undefined35,
  Tag_FP_HP_extension,
  Tag_undefined37,
  Tag_ABI_FP_16bit_format,
  Tag_undefined39,
  Tag_undefined40,
  Tag_undefined41,
  Tag_MPextension_use,
  Tag_undefined_43,
  Tag_DIV_use,
  Tag_nodefaults = 64,
  Tag_also_compatible_with,
  Tag_T2EE_use,
  Tag_conformance,
  Tag_Virtualization_use,
  Tag_undefined69,
  Tag_MPextension_use_legacy,

  /* The following tags are legacy names for other tags.  */
  Tag_VFP_arch = Tag_FP_arch,
  Tag_ABI_align8_needed = Tag_ABI_align_needed,
  Tag_ABI_align8_preserved = Tag_ABI_align_preserved,
  Tag_VFP_HP_extension = Tag_FP_HP_extension
};

#endif

/* The name of the note section used to identify arm variants.  */
#define ARM_NOTE_SECTION ".note.gnu.arm.ident"

/* Special section names.  */
#define ELF_STRING_ARM_unwind           ".ARM.exidx"
#define ELF_STRING_ARM_unwind_info      ".ARM.extab"
#define ELF_STRING_ARM_unwind_once      ".gnu.linkonce.armexidx."
#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."

enum arm_st_branch_type {
  ST_BRANCH_TO_ARM,
  ST_BRANCH_TO_THUMB,
  ST_BRANCH_LONG,
  ST_BRANCH_UNKNOWN
};

#define ARM_SYM_BRANCH_TYPE(SYM) \
  ((enum arm_st_branch_type) (SYM)->st_target_internal)

#endif /* _ELF_ARM_H */
Commit	Line	Data
252b5132	1	/* ARM ELF support for BFD.
e4e42b45	2	Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2009, 2010
c3aa17e9	3	Free Software Foundation, Inc.
252b5132 RH	4
	5	This file is part of BFD, the Binary File Descriptor library.
	6
	7	This program is free software; you can redistribute it and/or modify
	8	it under the terms of the GNU General Public License as published by
e4e42b45	9	the Free Software Foundation; either version 3 of the License, or
252b5132 RH	10	(at your option) any later version.
	11
	12	This program is distributed in the hope that it will be useful,
	13	but WITHOUT ANY WARRANTY; without even the implied warranty of
	14	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	15	GNU General Public License for more details.
	16
	17	You should have received a copy of the GNU General Public License
	18	along with this program; if not, write to the Free Software Foundation,
e172dbf8	19	Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */
252b5132 RH	20
	21	#ifndef _ELF_ARM_H
	22	#define _ELF_ARM_H
	23
	24	#include "elf/reloc-macros.h"
	25
	26	/* Processor specific flags for the ELF header e_flags field. */
	27	#define EF_ARM_RELEXEC 0x01
	28	#define EF_ARM_HASENTRY 0x02
2a7a4624 PB	29	#define EF_ARM_INTERWORK 0x04
	30	#define EF_ARM_APCS_26 0x08
	31	#define EF_ARM_APCS_FLOAT 0x10
	32	#define EF_ARM_PIC 0x20
	33	#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */
	34	#define EF_ARM_NEW_ABI 0x80
	35	#define EF_ARM_OLD_ABI 0x100
	36	#define EF_ARM_SOFT_FLOAT 0x200
ca4ebd1e	37	#define EF_ARM_VFP_FLOAT 0x400
fde78edd	38	#define EF_ARM_MAVERICK_FLOAT 0x800
2a7a4624	39
b294bdf8	40	/* Frame unwind information */
c19d1205	41	#define PT_ARM_EXIDX (PT_LOPROC + 1)
b294bdf8	42
2a7a4624	43	/* Other constants defined in the ARM ELF spec. version B-01. */
7f6fed87 NC	44	#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK. */
	45	#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26. */
	46	#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT. */
ff1c4e0d NC	47	#define EF_ARM_EABIMASK 0xFF000000
ff1c4e0d NC	48
3bfcb652 NC	49	/* New constants defined in the ARM ELF spec. version XXX.
	50	Only valid in conjunction with EF_ARM_EABI_VER5. */
	51	#define EF_ARM_ABI_FLOAT_SOFT 0x200 /* NB conflicts with EF_ARM_SOFT_FLOAT. */
	52	#define EF_ARM_ABI_FLOAT_HARD 0x400 /* NB conflicts with EF_ARM_VFP_FLOAT. */
	53
d507cf36 PB	54	/* Constants defined in AAELF. */
	55	#define EF_ARM_BE8 0x00800000
	56	#define EF_ARM_LE8 0x00400000
	57
ff1c4e0d NC	58	#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
	59	#define EF_ARM_EABI_UNKNOWN 0x00000000
	60	#define EF_ARM_EABI_VER1 0x01000000
2a7a4624	61	#define EF_ARM_EABI_VER2 0x02000000
d507cf36	62	#define EF_ARM_EABI_VER3 0x03000000
8cb51566	63	#define EF_ARM_EABI_VER4 0x04000000
3a4a14e9	64	#define EF_ARM_EABI_VER5 0x05000000
ff1c4e0d	65
252b5132	66	/* Local aliases for some flags to match names used by COFF port. */
2a7a4624 PB	67	#define F_INTERWORK EF_ARM_INTERWORK
	68	#define F_APCS26 EF_ARM_APCS_26
	69	#define F_APCS_FLOAT EF_ARM_APCS_FLOAT
	70	#define F_PIC EF_ARM_PIC
	71	#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT
ca4ebd1e	72	#define F_VFP_FLOAT EF_ARM_VFP_FLOAT
252b5132	73
2f0ca46a NC	74	/* Additional symbol types for Thumb. */
	75	#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
	76	#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
252b5132	77
40a18ebd	78	/* Additional section types. */
7f6fed87 NC	79	#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
	80	#define SHT_ARM_PREEMPTMAP 0x70000002 /* Section pre-emption details. */
	81	#define SHT_ARM_ATTRIBUTES 0x70000003 /* Section holds attributes. */
	82	#define SHT_ARM_DEBUGOVERLAY 0x70000004 /* Section holds overlay debug info. */
	83	#define SHT_ARM_OVERLAYSECTION 0x70000005 /* Section holds GDB and overlay integration info. */
40a18ebd	84
2f0ca46a NC	85	/* ARM-specific values for sh_flags. */
	86	#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */
	87	#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */
252b5132	88
2f0ca46a NC	89	/* ARM-specific program header flags. */
2f0ca46a NC	90	#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */
ff1c4e0d NC	91	#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */
ff1c4e0d NC	92	#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */
252b5132	93
e95de063	94	/* Values for the Tag_CPU_arch EABI attribute. */
91e22acd AS	95	#define TAG_CPU_ARCH_PRE_V4 0
	96	#define TAG_CPU_ARCH_V4 1
	97	#define TAG_CPU_ARCH_V4T 2
	98	#define TAG_CPU_ARCH_V5T 3
	99	#define TAG_CPU_ARCH_V5TE 4
	100	#define TAG_CPU_ARCH_V5TEJ 5
	101	#define TAG_CPU_ARCH_V6 6
	102	#define TAG_CPU_ARCH_V6KZ 7
	103	#define TAG_CPU_ARCH_V6T2 8
	104	#define TAG_CPU_ARCH_V6K 9
	105	#define TAG_CPU_ARCH_V7 10
	106	#define TAG_CPU_ARCH_V6_M 11
	107	#define TAG_CPU_ARCH_V6S_M 12
9e3c6df6	108	#define TAG_CPU_ARCH_V7E_M 13
bca38921 MGD	109	#define TAG_CPU_ARCH_V8 14
bca38921 MGD	110	#define MAX_TAG_CPU_ARCH 14
91e22acd AS	111	/* Pseudo-architecture to allow objects to be compatible with the subset of
	112	armv4t and armv6-m. This value should never be stored in object files. */
	113	#define TAG_CPU_ARCH_V4T_PLUS_V6_M (MAX_TAG_CPU_ARCH + 1)
e95de063	114
252b5132	115	/* Relocation types. */
8725b940	116
252b5132	117	START_RELOC_NUMBERS (elf_arm_reloc_type)
c19d1205 ZW	118	/* AAELF official names and numbers. */
	119	RELOC_NUMBER (R_ARM_NONE, 0)
	120	RELOC_NUMBER (R_ARM_PC24, 1) /* deprecated */
	121	RELOC_NUMBER (R_ARM_ABS32, 2)
	122	RELOC_NUMBER (R_ARM_REL32, 3)
c19d1205 ZW	123	RELOC_NUMBER (R_ARM_LDR_PC_G0, 4)
	124	RELOC_NUMBER (R_ARM_ABS16, 5)
	125	RELOC_NUMBER (R_ARM_ABS12, 6)
	126	RELOC_NUMBER (R_ARM_THM_ABS5, 7)
	127	RELOC_NUMBER (R_ARM_ABS8, 8)
	128	RELOC_NUMBER (R_ARM_SBREL32, 9)
	129	RELOC_NUMBER (R_ARM_THM_CALL, 10)
	130	RELOC_NUMBER (R_ARM_THM_PC8, 11)
	131	RELOC_NUMBER (R_ARM_BREL_ADJ, 12)
0855e32b	132	RELOC_NUMBER (R_ARM_TLS_DESC, 13)
c19d1205	133	RELOC_NUMBER (R_ARM_THM_SWI8, 14) /* obsolete */
c19d1205 ZW	134	RELOC_NUMBER (R_ARM_XPC25, 15) /* obsolete */
	135	RELOC_NUMBER (R_ARM_THM_XPC22, 16) /* obsolete */
	136	RELOC_NUMBER (R_ARM_TLS_DTPMOD32, 17)
	137	RELOC_NUMBER (R_ARM_TLS_DTPOFF32, 18)
	138	RELOC_NUMBER (R_ARM_TLS_TPOFF32, 19)
	139	RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
	140	RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
	141	RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
	142	RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
	143	RELOC_NUMBER (R_ARM_GOTOFF32, 24) /* 32 bit offset to GOT. */
	144	RELOC_NUMBER (R_ARM_BASE_PREL, 25) /* 32 bit PC relative offset to GOT. */
	145	RELOC_NUMBER (R_ARM_GOT_BREL, 26) /* 32 bit GOT entry. */
	146	RELOC_NUMBER (R_ARM_PLT32, 27) /* deprecated - 32 bit PLT address. */
	147	RELOC_NUMBER (R_ARM_CALL, 28)
	148	RELOC_NUMBER (R_ARM_JUMP24, 29)
	149	RELOC_NUMBER (R_ARM_THM_JUMP24, 30)
	150	RELOC_NUMBER (R_ARM_BASE_ABS, 31)
	151	RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32) /* obsolete */
	152	RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33) /* obsolete */
	153	RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34) /* obsolete */
	154	RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35) /* deprecated, should have _NC suffix */
	155	RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36) /* deprecated, should have _NC suffix */
	156	RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37) /* deprecated, should have _CK suffix */
	157	RELOC_NUMBER (R_ARM_TARGET1, 38)
	158	RELOC_NUMBER (R_ARM_SBREL31, 39) /* deprecated */
	159	RELOC_NUMBER (R_ARM_V4BX, 40)
	160	RELOC_NUMBER (R_ARM_TARGET2, 41)
	161	RELOC_NUMBER (R_ARM_PREL31, 42)
	162	RELOC_NUMBER (R_ARM_MOVW_ABS_NC, 43)
	163	RELOC_NUMBER (R_ARM_MOVT_ABS, 44)
	164	RELOC_NUMBER (R_ARM_MOVW_PREL_NC, 45)
	165	RELOC_NUMBER (R_ARM_MOVT_PREL, 46)
	166	RELOC_NUMBER (R_ARM_THM_MOVW_ABS_NC, 47)
	167	RELOC_NUMBER (R_ARM_THM_MOVT_ABS, 48)
	168	RELOC_NUMBER (R_ARM_THM_MOVW_PREL_NC, 49)
	169	RELOC_NUMBER (R_ARM_THM_MOVT_PREL, 50)
	170	RELOC_NUMBER (R_ARM_THM_JUMP19, 51)
	171	RELOC_NUMBER (R_ARM_THM_JUMP6, 52)
	172	RELOC_NUMBER (R_ARM_THM_ALU_PREL_11_0, 53)
	173	RELOC_NUMBER (R_ARM_THM_PC12, 54)
	174	RELOC_NUMBER (R_ARM_ABS32_NOI, 55)
	175	RELOC_NUMBER (R_ARM_REL32_NOI, 56)
	176	RELOC_NUMBER (R_ARM_ALU_PC_G0_NC, 57)
	177	RELOC_NUMBER (R_ARM_ALU_PC_G0, 58)
	178	RELOC_NUMBER (R_ARM_ALU_PC_G1_NC, 59)
	179	RELOC_NUMBER (R_ARM_ALU_PC_G1, 60)
	180	RELOC_NUMBER (R_ARM_ALU_PC_G2, 61)
	181	RELOC_NUMBER (R_ARM_LDR_PC_G1, 62)
	182	RELOC_NUMBER (R_ARM_LDR_PC_G2, 63)
	183	RELOC_NUMBER (R_ARM_LDRS_PC_G0, 64)
	184	RELOC_NUMBER (R_ARM_LDRS_PC_G1, 65)
	185	RELOC_NUMBER (R_ARM_LDRS_PC_G2, 66)
	186	RELOC_NUMBER (R_ARM_LDC_PC_G0, 67)
	187	RELOC_NUMBER (R_ARM_LDC_PC_G1, 68)
	188	RELOC_NUMBER (R_ARM_LDC_PC_G2, 69)
	189	RELOC_NUMBER (R_ARM_ALU_SB_G0_NC, 70)
	190	RELOC_NUMBER (R_ARM_ALU_SB_G0, 71)
	191	RELOC_NUMBER (R_ARM_ALU_SB_G1_NC, 72)
	192	RELOC_NUMBER (R_ARM_ALU_SB_G1, 73)
	193	RELOC_NUMBER (R_ARM_ALU_SB_G2, 74)
	194	RELOC_NUMBER (R_ARM_LDR_SB_G0, 75)
	195	RELOC_NUMBER (R_ARM_LDR_SB_G1, 76)
	196	RELOC_NUMBER (R_ARM_LDR_SB_G2, 77)
	197	RELOC_NUMBER (R_ARM_LDRS_SB_G0, 78)
198	RELOC_NUMBER (R_ARM_LDRS_SB_G1, 79)
199	RELOC_NUMBER (R_ARM_LDRS_SB_G2, 80)
4962c51a MS	200	RELOC_NUMBER (R_ARM_LDC_SB_G0, 81)
	201	RELOC_NUMBER (R_ARM_LDC_SB_G1, 82)
	202	RELOC_NUMBER (R_ARM_LDC_SB_G2, 83)
c19d1205 ZW	203	RELOC_NUMBER (R_ARM_MOVW_BREL_NC, 84)
	204	RELOC_NUMBER (R_ARM_MOVT_BREL, 85)
	205	RELOC_NUMBER (R_ARM_MOVW_BREL, 86)
	206	RELOC_NUMBER (R_ARM_THM_MOVW_BREL_NC, 87)
	207	RELOC_NUMBER (R_ARM_THM_MOVT_BREL, 88)
	208	RELOC_NUMBER (R_ARM_THM_MOVW_BREL, 89)
0855e32b NS	209	RELOC_NUMBER (R_ARM_TLS_GOTDESC, 90)
	210	RELOC_NUMBER (R_ARM_TLS_CALL, 91)
	211	RELOC_NUMBER (R_ARM_TLS_DESCSEQ, 92)
	212	RELOC_NUMBER (R_ARM_THM_TLS_CALL, 93)
c19d1205 ZW	213	RELOC_NUMBER (R_ARM_PLT32_ABS, 94)
	214	RELOC_NUMBER (R_ARM_GOT_ABS, 95)
	215	RELOC_NUMBER (R_ARM_GOT_PREL, 96)
	216	RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
	217	RELOC_NUMBER (R_ARM_GOTOFF12, 98)
	218	RELOC_NUMBER (R_ARM_GOTRELAX, 99)
c19d1205 ZW	219	RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100) /* deprecated - old C++ abi */
	220	RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101) /* deprecated - old C++ abi */
	221	RELOC_NUMBER (R_ARM_THM_JUMP11, 102)
	222	RELOC_NUMBER (R_ARM_THM_JUMP8, 103)
c19d1205 ZW	223	RELOC_NUMBER (R_ARM_TLS_GD32, 104)
	224	RELOC_NUMBER (R_ARM_TLS_LDM32, 105)
	225	RELOC_NUMBER (R_ARM_TLS_LDO32, 106)
	226	RELOC_NUMBER (R_ARM_TLS_IE32, 107)
	227	RELOC_NUMBER (R_ARM_TLS_LE32, 108)
	228	RELOC_NUMBER (R_ARM_TLS_LDO12, 109)
	229	RELOC_NUMBER (R_ARM_TLS_LE12, 110)
	230	RELOC_NUMBER (R_ARM_TLS_IE12GP, 111)
	231	/* 112 - 127 private range */
	232	RELOC_NUMBER (R_ARM_ME_TOO, 128) /* obsolete */
0855e32b	233	RELOC_NUMBER (R_ARM_THM_TLS_DESCSEQ ,129)
c19d1205	234
34e77a92 RS	235	RELOC_NUMBER (R_ARM_IRELATIVE, 160)
34e77a92 RS	236
c19d1205 ZW	237	/* Extensions? R=read-only? */
	238	RELOC_NUMBER (R_ARM_RXPC25, 249)
	239	RELOC_NUMBER (R_ARM_RSBREL32, 250)
	240	RELOC_NUMBER (R_ARM_THM_RPC22, 251)
	241	RELOC_NUMBER (R_ARM_RREL32, 252)
	242	RELOC_NUMBER (R_ARM_RABS32, 253)
	243	RELOC_NUMBER (R_ARM_RPC24, 254)
	244	RELOC_NUMBER (R_ARM_RBASE, 255)
	245
	246	/* Unofficial names for some of the relocs. */
	247	FAKE_RELOC (R_ARM_GOTOFF, R_ARM_GOTOFF32) /* 32 bit offset to GOT. */
	248	FAKE_RELOC (R_ARM_THM_PC22, R_ARM_THM_CALL)
	249	FAKE_RELOC (R_ARM_THM_PC11, R_ARM_THM_JUMP11)
	250	FAKE_RELOC (R_ARM_THM_PC9, R_ARM_THM_JUMP8)
	251
	252	/* Relocs with both a different name, and (apparently) different meaning in
	253	GNU usage. */
	254	FAKE_RELOC (R_ARM_GOTPC, R_ARM_BASE_PREL) /* 32 bit PC relative offset to GOT. */
	255	FAKE_RELOC (R_ARM_GOT32, R_ARM_GOT_BREL) /* 32 bit GOT entry. */
	256	FAKE_RELOC (R_ARM_ROSEGREL32, R_ARM_SBREL31) /* ??? */
	257	FAKE_RELOC (R_ARM_AMP_VCALL9, R_ARM_BREL_ADJ) /* Thumb-something. Not used. */
7c90103b NC	258
7c90103b NC	259	END_RELOC_NUMBERS (R_ARM_max = 256)
252b5132	260
ee065d83	261	#ifdef BFD_ARCH_SIZE
104d59d1	262	/* EABI object attributes. */
ee065d83 PB	263
	264	enum
	265	{
104d59d1 JM	266	/* 0-3 are generic. */
104d59d1 JM	267	Tag_CPU_raw_name = 4,
ee065d83 PB	268	Tag_CPU_name,
	269	Tag_CPU_arch,
	270	Tag_CPU_arch_profile,
	271	Tag_ARM_ISA_use,
	272	Tag_THUMB_ISA_use,
75375b3e	273	Tag_FP_arch,
ee065d83	274	Tag_WMMX_arch,
91e22acd	275	Tag_Advanced_SIMD_arch,
ee065d83 PB	276	Tag_PCS_config,
	277	Tag_ABI_PCS_R9_use,
	278	Tag_ABI_PCS_RW_data,
	279	Tag_ABI_PCS_RO_data,
	280	Tag_ABI_PCS_GOT_use,
	281	Tag_ABI_PCS_wchar_t,
	282	Tag_ABI_FP_rounding,
	283	Tag_ABI_FP_denormal,
	284	Tag_ABI_FP_exceptions,
	285	Tag_ABI_FP_user_exceptions,
	286	Tag_ABI_FP_number_model,
75375b3e MGD	287	Tag_ABI_align_needed,
75375b3e MGD	288	Tag_ABI_align_preserved,
ee065d83 PB	289	Tag_ABI_enum_size,
	290	Tag_ABI_HardFP_use,
	291	Tag_ABI_VFP_args,
	292	Tag_ABI_WMMX_args,
	293	Tag_ABI_optimization_goals,
	294	Tag_ABI_FP_optimization_goals,
91e22acd	295	/* 32 is generic (Tag_compatibility). */
8e79c3df CM	296	Tag_undefined33 = 33,
8e79c3df CM	297	Tag_CPU_unaligned_access,
91e22acd	298	Tag_undefined35,
75375b3e	299	Tag_FP_HP_extension,
8e79c3df	300	Tag_undefined37,
91e22acd AS	301	Tag_ABI_FP_16bit_format,
91e22acd AS	302	Tag_undefined39,
cd21e546 MGD	303	Tag_undefined40,
	304	Tag_undefined41,
	305	Tag_MPextension_use,
	306	Tag_undefined_43,
	307	Tag_DIV_use,
91e22acd AS	308	Tag_nodefaults = 64,
	309	Tag_also_compatible_with,
	310	Tag_T2EE_use,
	311	Tag_conformance,
	312	Tag_Virtualization_use,
	313	Tag_undefined69,
75375b3e MGD	314	Tag_MPextension_use_legacy,
	315
	316	/* The following tags are legacy names for other tags. */
	317	Tag_VFP_arch = Tag_FP_arch,
	318	Tag_ABI_align8_needed = Tag_ABI_align_needed,
	319	Tag_ABI_align8_preserved = Tag_ABI_align_preserved,
	320	Tag_VFP_HP_extension = Tag_FP_HP_extension
ee065d83 PB	321	};
	322
	323	#endif
	324
e16bb312	325	/* The name of the note section used to identify arm variants. */
5a6c6817	326	#define ARM_NOTE_SECTION ".note.gnu.arm.ident"
40a18ebd NC	327
	328	/* Special section names. */
	329	#define ELF_STRING_ARM_unwind ".ARM.exidx"
	330	#define ELF_STRING_ARM_unwind_info ".ARM.extab"
	331	#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
	332	#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
	333
35fc36a8 RS	334	enum arm_st_branch_type {
	335	ST_BRANCH_TO_ARM,
	336	ST_BRANCH_TO_THUMB,
63e1a0fc PB	337	ST_BRANCH_LONG,
63e1a0fc PB	338	ST_BRANCH_UNKNOWN
35fc36a8 RS	339	};
	340
	341	#define ARM_SYM_BRANCH_TYPE(SYM) \
	342	((enum arm_st_branch_type) (SYM)->st_target_internal)
	343
8725b940	344	#endif /* _ELF_ARM_H */