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

/* ARM ELF support for BFD.
   Copyright 1998, 1999, 2000, 2001, 2002 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 2 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, 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

/* 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

/* 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

/* 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.  */

/* 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.  */

/* Relocation types.  */

START_RELOC_NUMBERS (elf_arm_reloc_type)
  RELOC_NUMBER (R_ARM_NONE,             0)
  RELOC_NUMBER (R_ARM_PC24,             1)
  RELOC_NUMBER (R_ARM_ABS32,            2)
  RELOC_NUMBER (R_ARM_REL32,            3)
#ifdef OLD_ARM_ABI
  RELOC_NUMBER (R_ARM_ABS8,             4)
  RELOC_NUMBER (R_ARM_ABS16,            5)
  RELOC_NUMBER (R_ARM_ABS12,            6)
  RELOC_NUMBER (R_ARM_THM_ABS5,         7)
  RELOC_NUMBER (R_ARM_THM_PC22,         8)
  RELOC_NUMBER (R_ARM_SBREL32,          9)
  RELOC_NUMBER (R_ARM_AMP_VCALL9,      10)
  RELOC_NUMBER (R_ARM_THM_PC11,        11)   /* Cygnus extension to abi: Thumb unconditional branch.  */
  RELOC_NUMBER (R_ARM_THM_PC9,         12)   /* Cygnus extension to abi: Thumb conditional branch.  */
  RELOC_NUMBER (R_ARM_GNU_VTINHERIT,   13)  
  RELOC_NUMBER (R_ARM_GNU_VTENTRY,     14)  
#else /* not OLD_ARM_ABI */
  RELOC_NUMBER (R_ARM_PC13,             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_PC22,        10)
  RELOC_NUMBER (R_ARM_THM_PC8,         11)
  RELOC_NUMBER (R_ARM_AMP_VCALL9,      12)
  RELOC_NUMBER (R_ARM_SWI24,           13)
  RELOC_NUMBER (R_ARM_THM_SWI8,        14)
  RELOC_NUMBER (R_ARM_XPC25,           15)
  RELOC_NUMBER (R_ARM_THM_XPC22,       16)
#endif /* not OLD_ARM_ABI */
  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_GOTOFF,          24)   /* 32 bit offset to GOT.  */
  RELOC_NUMBER (R_ARM_GOTPC,           25)   /* 32 bit PC relative offset to GOT.  */
  RELOC_NUMBER (R_ARM_GOT32,           26)   /* 32 bit GOT entry.  */
  RELOC_NUMBER (R_ARM_PLT32,           27)   /* 32 bit PLT address.  */
#ifdef OLD_ARM_ABI
  FAKE_RELOC   (FIRST_INVALID_RELOC,   28)
  FAKE_RELOC   (LAST_INVALID_RELOC,   249)
#else /* not OLD_ARM_ABI */
  FAKE_RELOC   (FIRST_INVALID_RELOC1,  28)
  FAKE_RELOC   (LAST_INVALID_RELOC1,   31)
  RELOC_NUMBER (R_ARM_ALU_PCREL7_0,    32)
  RELOC_NUMBER (R_ARM_ALU_PCREL15_8,   33)
  RELOC_NUMBER (R_ARM_ALU_PCREL23_15,  34)
  RELOC_NUMBER (R_ARM_LDR_SBREL_11_0,  35)
  RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36)
  RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37)
  RELOC_NUMBER (R_ARM_TARGET1,         38)
  RELOC_NUMBER (R_ARM_ROSEGREL32,      39)
  RELOC_NUMBER (R_ARM_V4BX,            40)
  RELOC_NUMBER (R_ARM_TARGET2,	       41)
  RELOC_NUMBER (R_ARM_PREL31,	       42)
  FAKE_RELOC   (FIRST_INVALID_RELOC2,  43)
  FAKE_RELOC   (LAST_INVALID_RELOC2,   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)
  RELOC_NUMBER (R_ARM_GNU_VTINHERIT,  101)
  RELOC_NUMBER (R_ARM_THM_PC11,       102)   /* Cygnus extension to abi: Thumb unconditional branch.  */
  RELOC_NUMBER (R_ARM_THM_PC9,        103)   /* Cygnus extension to abi: Thumb conditional branch.  */
  FAKE_RELOC   (FIRST_INVALID_RELOC3, 104)
  FAKE_RELOC   (LAST_INVALID_RELOC3,  248)
  RELOC_NUMBER (R_ARM_RXPC25,         249)
#endif /* not OLD_ARM_ABI */
  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)
END_RELOC_NUMBERS (R_ARM_max)

/* 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."

#endif /* _ELF_ARM_H */
Commit	Line	Data
252b5132	1	/* ARM ELF support for BFD.
ca4ebd1e	2	Copyright 1998, 1999, 2000, 2001, 2002 Free Software Foundation, Inc.
252b5132 RH	3
	4	This file is part of BFD, the Binary File Descriptor library.
	5
	6	This program is free software; you can redistribute it and/or modify
	7	it under the terms of the GNU General Public License as published by
	8	the Free Software Foundation; either version 2 of the License, or
	9	(at your option) any later version.
	10
	11	This program is distributed in the hope that it will be useful,
	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	14	GNU General Public License for more details.
	15
	16	You should have received a copy of the GNU General Public License
	17	along with this program; if not, write to the Free Software Foundation,
	18	Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
	19
	20	#ifndef _ELF_ARM_H
	21	#define _ELF_ARM_H
	22
	23	#include "elf/reloc-macros.h"
	24
	25	/* Processor specific flags for the ELF header e_flags field. */
	26	#define EF_ARM_RELEXEC 0x01
	27	#define EF_ARM_HASENTRY 0x02
2a7a4624 PB	28	#define EF_ARM_INTERWORK 0x04
	29	#define EF_ARM_APCS_26 0x08
	30	#define EF_ARM_APCS_FLOAT 0x10
	31	#define EF_ARM_PIC 0x20
	32	#define EF_ARM_ALIGN8 0x40 /* 8-bit structure alignment is in use. */
	33	#define EF_ARM_NEW_ABI 0x80
	34	#define EF_ARM_OLD_ABI 0x100
	35	#define EF_ARM_SOFT_FLOAT 0x200
ca4ebd1e	36	#define EF_ARM_VFP_FLOAT 0x400
fde78edd	37	#define EF_ARM_MAVERICK_FLOAT 0x800
2a7a4624 PB	38
2a7a4624 PB	39	/* Other constants defined in the ARM ELF spec. version B-01. */
ff1c4e0d	40	#define EF_ARM_SYMSARESORTED 0x04 /* NB conflicts with EF_INTERWORK */
2a7a4624 PB	41	#define EF_ARM_DYNSYMSUSESEGIDX 0x08 /* NB conflicts with EF_APCS26 */
2a7a4624 PB	42	#define EF_ARM_MAPSYMSFIRST 0x10 /* NB conflicts with EF_APCS_FLOAT */
ff1c4e0d NC	43	#define EF_ARM_EABIMASK 0xFF000000
ff1c4e0d NC	44
d507cf36 PB	45	/* Constants defined in AAELF. */
	46	#define EF_ARM_BE8 0x00800000
	47	#define EF_ARM_LE8 0x00400000
	48
ff1c4e0d NC	49	#define EF_ARM_EABI_VERSION(flags) ((flags) & EF_ARM_EABIMASK)
	50	#define EF_ARM_EABI_UNKNOWN 0x00000000
	51	#define EF_ARM_EABI_VER1 0x01000000
2a7a4624	52	#define EF_ARM_EABI_VER2 0x02000000
d507cf36	53	#define EF_ARM_EABI_VER3 0x03000000
8cb51566	54	#define EF_ARM_EABI_VER4 0x04000000
ff1c4e0d	55
252b5132	56	/* Local aliases for some flags to match names used by COFF port. */
2a7a4624 PB	57	#define F_INTERWORK EF_ARM_INTERWORK
	58	#define F_APCS26 EF_ARM_APCS_26
	59	#define F_APCS_FLOAT EF_ARM_APCS_FLOAT
	60	#define F_PIC EF_ARM_PIC
	61	#define F_SOFT_FLOAT EF_ARM_SOFT_FLOAT
ca4ebd1e	62	#define F_VFP_FLOAT EF_ARM_VFP_FLOAT
252b5132	63
2f0ca46a NC	64	/* Additional symbol types for Thumb. */
	65	#define STT_ARM_TFUNC STT_LOPROC /* A Thumb function. */
	66	#define STT_ARM_16BIT STT_HIPROC /* A Thumb label. */
252b5132	67
40a18ebd NC	68	/* Additional section types. */
	69	#define SHT_ARM_EXIDX 0x70000001 /* Section holds ARM unwind info. */
	70
2f0ca46a NC	71	/* ARM-specific values for sh_flags. */
	72	#define SHF_ENTRYSECT 0x10000000 /* Section contains an entry point. */
	73	#define SHF_COMDEF 0x80000000 /* Section may be multiply defined in the input to a link step. */
252b5132	74
2f0ca46a NC	75	/* ARM-specific program header flags. */
2f0ca46a NC	76	#define PF_ARM_SB 0x10000000 /* Segment contains the location addressed by the static base. */
ff1c4e0d NC	77	#define PF_ARM_PI 0x20000000 /* Segment is position-independent. */
ff1c4e0d NC	78	#define PF_ARM_ABS 0x40000000 /* Segment must be loaded at its base address. */
252b5132 RH	79
252b5132 RH	80	/* Relocation types. */
8725b940	81
252b5132	82	START_RELOC_NUMBERS (elf_arm_reloc_type)
8725b940 NC	83	RELOC_NUMBER (R_ARM_NONE, 0)
	84	RELOC_NUMBER (R_ARM_PC24, 1)
	85	RELOC_NUMBER (R_ARM_ABS32, 2)
	86	RELOC_NUMBER (R_ARM_REL32, 3)
	87	#ifdef OLD_ARM_ABI
	88	RELOC_NUMBER (R_ARM_ABS8, 4)
	89	RELOC_NUMBER (R_ARM_ABS16, 5)
	90	RELOC_NUMBER (R_ARM_ABS12, 6)
	91	RELOC_NUMBER (R_ARM_THM_ABS5, 7)
	92	RELOC_NUMBER (R_ARM_THM_PC22, 8)
	93	RELOC_NUMBER (R_ARM_SBREL32, 9)
	94	RELOC_NUMBER (R_ARM_AMP_VCALL9, 10)
	95	RELOC_NUMBER (R_ARM_THM_PC11, 11) /* Cygnus extension to abi: Thumb unconditional branch. */
	96	RELOC_NUMBER (R_ARM_THM_PC9, 12) /* Cygnus extension to abi: Thumb conditional branch. */
	97	RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 13)
	98	RELOC_NUMBER (R_ARM_GNU_VTENTRY, 14)
	99	#else /* not OLD_ARM_ABI */
	100	RELOC_NUMBER (R_ARM_PC13, 4)
	101	RELOC_NUMBER (R_ARM_ABS16, 5)
	102	RELOC_NUMBER (R_ARM_ABS12, 6)
	103	RELOC_NUMBER (R_ARM_THM_ABS5, 7)
	104	RELOC_NUMBER (R_ARM_ABS8, 8)
	105	RELOC_NUMBER (R_ARM_SBREL32, 9)
	106	RELOC_NUMBER (R_ARM_THM_PC22, 10)
	107	RELOC_NUMBER (R_ARM_THM_PC8, 11)
	108	RELOC_NUMBER (R_ARM_AMP_VCALL9, 12)
	109	RELOC_NUMBER (R_ARM_SWI24, 13)
	110	RELOC_NUMBER (R_ARM_THM_SWI8, 14)
	111	RELOC_NUMBER (R_ARM_XPC25, 15)
	112	RELOC_NUMBER (R_ARM_THM_XPC22, 16)
	113	#endif /* not OLD_ARM_ABI */
	114	RELOC_NUMBER (R_ARM_COPY, 20) /* Copy symbol at runtime. */
	115	RELOC_NUMBER (R_ARM_GLOB_DAT, 21) /* Create GOT entry. */
	116	RELOC_NUMBER (R_ARM_JUMP_SLOT, 22) /* Create PLT entry. */
	117	RELOC_NUMBER (R_ARM_RELATIVE, 23) /* Adjust by program base. */
	118	RELOC_NUMBER (R_ARM_GOTOFF, 24) /* 32 bit offset to GOT. */
	119	RELOC_NUMBER (R_ARM_GOTPC, 25) /* 32 bit PC relative offset to GOT. */
	120	RELOC_NUMBER (R_ARM_GOT32, 26) /* 32 bit GOT entry. */
	121	RELOC_NUMBER (R_ARM_PLT32, 27) /* 32 bit PLT address. */
	122	#ifdef OLD_ARM_ABI
	123	FAKE_RELOC (FIRST_INVALID_RELOC, 28)
	124	FAKE_RELOC (LAST_INVALID_RELOC, 249)
	125	#else /* not OLD_ARM_ABI */
	126	FAKE_RELOC (FIRST_INVALID_RELOC1, 28)
2a7a4624 PB	127	FAKE_RELOC (LAST_INVALID_RELOC1, 31)
	128	RELOC_NUMBER (R_ARM_ALU_PCREL7_0, 32)
	129	RELOC_NUMBER (R_ARM_ALU_PCREL15_8, 33)
	130	RELOC_NUMBER (R_ARM_ALU_PCREL23_15, 34)
db6579d4 PB	131	RELOC_NUMBER (R_ARM_LDR_SBREL_11_0, 35)
	132	RELOC_NUMBER (R_ARM_ALU_SBREL_19_12, 36)
	133	RELOC_NUMBER (R_ARM_ALU_SBREL_27_20, 37)
9c504268	134	RELOC_NUMBER (R_ARM_TARGET1, 38)
db6579d4 PB	135	RELOC_NUMBER (R_ARM_ROSEGREL32, 39)
db6579d4 PB	136	RELOC_NUMBER (R_ARM_V4BX, 40)
eb043451 PB	137	RELOC_NUMBER (R_ARM_TARGET2, 41)
eb043451 PB	138	RELOC_NUMBER (R_ARM_PREL31, 42)
db6579d4	139	FAKE_RELOC (FIRST_INVALID_RELOC2, 43)
eb043451 PB	140	FAKE_RELOC (LAST_INVALID_RELOC2, 94)
	141	RELOC_NUMBER (R_ARM_GOT_ABS, 95)
	142	RELOC_NUMBER (R_ARM_GOT_PREL, 96)
	143	RELOC_NUMBER (R_ARM_GOT_BREL12, 97)
	144	RELOC_NUMBER (R_ARM_GOTOFF12, 98)
	145	RELOC_NUMBER (R_ARM_GOTRELAX, 99)
8725b940 NC	146	RELOC_NUMBER (R_ARM_GNU_VTENTRY, 100)
	147	RELOC_NUMBER (R_ARM_GNU_VTINHERIT, 101)
	148	RELOC_NUMBER (R_ARM_THM_PC11, 102) /* Cygnus extension to abi: Thumb unconditional branch. */
	149	RELOC_NUMBER (R_ARM_THM_PC9, 103) /* Cygnus extension to abi: Thumb conditional branch. */
2a7a4624 PB	150	FAKE_RELOC (FIRST_INVALID_RELOC3, 104)
2a7a4624 PB	151	FAKE_RELOC (LAST_INVALID_RELOC3, 248)
8725b940 NC	152	RELOC_NUMBER (R_ARM_RXPC25, 249)
	153	#endif /* not OLD_ARM_ABI */
	154	RELOC_NUMBER (R_ARM_RSBREL32, 250)
	155	RELOC_NUMBER (R_ARM_THM_RPC22, 251)
	156	RELOC_NUMBER (R_ARM_RREL32, 252)
	157	RELOC_NUMBER (R_ARM_RABS32, 253)
	158	RELOC_NUMBER (R_ARM_RPC24, 254)
	159	RELOC_NUMBER (R_ARM_RBASE, 255)
1b452ec6	160	END_RELOC_NUMBERS (R_ARM_max)
252b5132	161
e16bb312	162	/* The name of the note section used to identify arm variants. */
5a6c6817	163	#define ARM_NOTE_SECTION ".note.gnu.arm.ident"
40a18ebd NC	164
	165	/* Special section names. */
	166	#define ELF_STRING_ARM_unwind ".ARM.exidx"
	167	#define ELF_STRING_ARM_unwind_info ".ARM.extab"
	168	#define ELF_STRING_ARM_unwind_once ".gnu.linkonce.armexidx."
	169	#define ELF_STRING_ARM_unwind_info_once ".gnu.linkonce.armextab."
	170
8725b940	171	#endif /* _ELF_ARM_H */