Home | History | Annotate | Line # | Download | only in include
      1 /* $NetBSD: elf_machdep.h,v 1.8 2025/11/28 19:12:58 jkoshy Exp $ */
      2 
      3 /*-
      4  * Copyright (c) 2014 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Matt Thomas of 3am Software Foundry.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 #ifndef _AARCH64_ELF_MACHDEP_H_
     33 #define _AARCH64_ELF_MACHDEP_H_
     34 
     35 #ifdef __aarch64__
     36 
     37 #if !defined(_SYS_ELFDEFINITIONS_H_)
     38 /*
     39  * Symbols that are part of the ELF psABI.
     40  */
     41 
     42 /* Processor specific flags for the ELF header e_flags field.  */
     43 #define EF_ARM_RELEXEC		0x00000001
     44 #define EF_ARM_HASENTRY		0x00000002
     45 #define EF_ARM_INTERWORK	0x00000004 /* GNU binutils 000413 */
     46 #define EF_ARM_SYMSARESORTED	0x00000004 /* ARM ELF A08 */
     47 #define EF_ARM_APCS_26		0x00000008 /* GNU binutils 000413 */
     48 #define EF_ARM_DYNSYMSUSESEGIDX	0x00000008 /* ARM ELF B01 */
     49 #define EF_ARM_APCS_FLOAT	0x00000010 /* GNU binutils 000413 */
     50 #define EF_ARM_MAPSYMSFIRST	0x00000010 /* ARM ELF B01 */
     51 #define EF_ARM_PIC		0x00000020
     52 #define EF_ARM_ALIGN8		0x00000040 /* 8-bit structure alignment.  */
     53 #define EF_ARM_NEW_ABI		0x00000080
     54 #define EF_ARM_OLD_ABI		0x00000100
     55 #define EF_ARM_SOFT_FLOAT	0x00000200
     56 #define EF_ARM_BE8		0x00800000
     57 #define EF_ARM_EABIMASK		0xff000000
     58 #define	EF_ARM_EABI_VER1	0x01000000
     59 #define	EF_ARM_EABI_VER2	0x02000000
     60 #define	EF_ARM_EABI_VER3	0x03000000
     61 #define	EF_ARM_EABI_VER4	0x04000000
     62 #define	EF_ARM_EABI_VER5	0x05000000
     63 
     64 /* Processor specific relocation types */
     65 
     66 #define R_AARCH64_NONE			0
     67 #define R_AARCH64_NONE2			256
     68 
     69 #define	R_AARCH64_ABS64			257	/* S + A */
     70 #define	R_AARCH64_ABS32			258	/* S + A */
     71 #define	R_AARCH64_ABS16			259	/* S + A */
     72 #define	R_AARCH64_PREL64		260	/* S + A - P */
     73 #define	R_AARCH64_PREL32		261	/* S + A - P */
     74 #define	R_AARCH64_PREL16		262	/* S + A - P */
     75 #define R_AARCH64_MOVW_UABS_G0		263	/* S + A [bits 0..15] */
     76 #define R_AARCH64_MOVW_UABS_G0_NC	264	/* S + A [bits 0..15] */
     77 #define R_AARCH64_MOVW_UABS_G1		265	/* S + A [bits 16..31] */
     78 #define R_AARCH64_MOVW_UABS_G1_NC	266	/* S + A [bits 16..31] */
     79 #define R_AARCH64_MOVW_UABS_G2		267	/* S + A [bits 32..47] */
     80 #define R_AARCH64_MOVW_UABS_G2_NC	268	/* S + A [bits 32..47] */
     81 #define R_AARCH64_MOVW_UABS_G3		269	/* S + A [bits 48..63] */
     82 #define R_AARCH64_MOVW_SABS_G0		270	/* S + A [bits 0..15] */
     83 #define R_AARCH64_MOVW_SABS_G1		271	/* S + A [bits 16..31] */
     84 #define R_AARCH64_MOVW_SABS_G2		272	/* S + A [bits 32..47] */
     85 #define	R_AARCH64_LD_PREL_LO19		273	/* S + A - P */
     86 #define	R_AARCH64_ADR_PREL_LO21		274	/* S + A - P */
     87 #define	R_AARCH64_ADR_PREL_PG_HI21	275	/* Page(S + A) - Page(P) */
     88 #define	R_AARCH64_ADR_PREL_PG_HI21_NC	276	/* Page(S + A) - Page(P) */
     89 #define R_AARCH64_ADD_ABS_LO12_NC	277	/* S + A */
     90 #define	R_AARCH64_LDST8_ABS_LO12_NC	278	/* S + A */
     91 #define R_AARCH_TSTBR14			279	/* S + A - P */
     92 #define R_AARCH_CONDBR19		281	/* S + A - P */
     93 #define R_AARCH_JUMP26			282	/* S + A - P */
     94 #define R_AARCH_CALL26			283	/* S + A - P */
     95 #define R_AARCH_LDST16_ABS_LO12_NC	284	/* S + A */
     96 #define R_AARCH_LDST32_ABS_LO12_NC	285	/* S + A */
     97 #define R_AARCH_LDST64_ABS_LO12_NC	286	/* S + A */
     98 #define R_AARCH64_MOVW_PREL_G0		287	/* S + A - P */
     99 #define R_AARCH64_MOVW_PREL_G0_NC	288	/* S + A - P */
    100 #define R_AARCH64_MOVW_PREL_G1		289	/* S + A - P */
    101 #define R_AARCH64_MOVW_PREL_G1_NC	290	/* S + A - P */
    102 #define R_AARCH64_MOVW_PREL_G2		291	/* S + A - P */
    103 #define R_AARCH64_MOVW_PREL_G2_NC	292	/* S + A - P */
    104 #define R_AARCH64_MOVW_PREL_G3		293	/* S + A - P */
    105 
    106 #define R_AARCH64_LDST128_ABS_LO12_NC	299	/* S + A */
    107 #define R_AARCH64_MOVW_GOTOFF_G0	300	/* G(GDAT(S + A)) - GOT */
    108 #define R_AARCH64_MOVW_GOTOFF_G0_NC	301	/* G(GDAT(S + A)) - GOT */
    109 #define R_AARCH64_MOVW_GOTOFF_G1	302	/* G(GDAT(S + A)) - GOT */
    110 #define R_AARCH64_MOVW_GOTOFF_G1_NC	303	/* G(GDAT(S + A)) - GOT */
    111 #define R_AARCH64_MOVW_GOTOFF_G2	304	/* G(GDAT(S + A)) - GOT */
    112 #define R_AARCH64_MOVW_GOTOFF_G2_NC	305	/* G(GDAT(S + A)) - GOT */
    113 #define R_AARCH64_MOVW_GOTOFF_G3	306	/* G(GDAT(S + A)) - GOT */
    114 #define R_AARCH64_GOTREL64		307	/* S + A - GOT */
    115 #define R_AARCH64_GOTREL32		308	/* S + A - GOT */
    116 #define R_AARCH64_GOT_LD_PREL19		309	/* G(GDAT(S + A)) - P */
    117 #define R_AARCH64_LD64_GOTOFF_LO15	310	/* G(GDAT(S + A)) - GOT */
    118 #define R_AARCH64_ADR_GOT_PAGE		311	/* Page(G(GDAT(S + A))) - Page(GOT) */
    119 #define R_AARCH64_LD64_GOT_LO12_NC	312	/* G(GDAT(S + A)) */
    120 #define R_AARCH64_LD64_GOTPAGE_LO15	313	/* G(GDAT(S + A)) - Page(GOT) */
    121 
    122 #define R_AARCH64_TLSGD_ADR_PREL21		512	/* G(GTLSIDX(S,A)) - P */
    123 #define R_AARCH64_TLSGD_ADR_PAGE21		513	/* Page(G(GTLSIDX(S,A))) - Page(P) */
    124 #define R_AARCH64_TLSGD_ADD_LO12_NC		514	/* G(GTLSIDX(S,A)) */
    125 #define R_AARCH64_TLSGD_MOVW_G1			515	/* G(GTLSIDX(S,A)) - GOT */
    126 #define R_AARCH64_TLSGD_MOVW_G0_NV		516	/* G(GTLSIDX(S,A)) - GOT */
    127 #define R_AARCH64_TLSLD_ADR_PREL21		517	/* G(GLDM(S,A)) - P */
    128 #define R_AARCH64_TLSLD_ADR_PAGE21		518	/* Page(G(GLDM(S))) - Page(P) */
    129 #define R_AARCH64_TLSLD_ADD_LO12_NC		519	/* G(GLDM(S)) */
    130 #define R_AARCH64_TLSLD_MOVW_G1			520	/* G(GLDM(S)) - GOT */
    131 #define R_AARCH64_TLSLD_MOVW_G0_NC		521	/* G(GLDM(S)) - GOT */
    132 #define R_AARCH64_TLSLD_LD_PREL21		522	/* G(GLDM(S)) - P */
    133 #define R_AARCH64_TLSLD_MOVW_DTPREL_G2		523	/* DTPREL(S+A) */
    134 #define R_AARCH64_TLSLD_MOVW_DTPREL_G1		524	/* DTPREL(S+A) */
    135 #define R_AARCH64_TLSLD_MOVW_DTPREL_G1_NC	525	/* DTPREL(S+A) */
    136 #define R_AARCH64_TLSLD_MOVW_DTPREL_G0		526	/* DTPREL(S+A) */
    137 #define R_AARCH64_TLSLD_MOVW_DTPREL_G0_NC	527	/* DTPREL(S+A) */
    138 #define R_AARCH64_TLSLD_ADD_DTPREL_HI12		528	/* DTPREL(S+A) */
    139 #define R_AARCH64_TLSLD_ADD_DTPREL_LO12		529	/* DTPREL(S+A) */
    140 #define R_AARCH64_TLSLD_ADD_DTPREL_LO12_NC	530	/* DTPREL(S+A) */
    141 #define R_AARCH64_TLSLD_LDST8_DTPREL_LO12	531	/* DTPREL(S+A) */
    142 #define R_AARCH64_TLSLD_LDST8_DTPREL_LO12_NC	532	/* DTPREL(S+A) */
    143 #define R_AARCH64_TLSLD_LDST16_DTPREL_LO12	533	/* DTPREL(S+A) */
    144 #define R_AARCH64_TLSLD_LDST16_DTPREL_LO12_NC	534	/* DTPREL(S+A) */
    145 #define R_AARCH64_TLSLD_LDST32_DTPREL_LO12	535	/* DTPREL(S+A) */
    146 #define R_AARCH64_TLSLD_LDST32_DTPREL_LO12_NC	536	/* DTPREL(S+A) */
    147 #define R_AARCH64_TLSLD_LDST64_DTPREL_LO12	537	/* DTPREL(S+A) */
    148 #define R_AARCH64_TLSLD_LDST64_DTPREL_LO12_NC	538	/* DTPREL(S+A) */
    149 #define R_AARCH64_TLSIE_MOVW_GOTTPREL_G1	539	/* G(GTPREL(S+A)) - GOT */
    150 #define R_AARCH64_TLSIE_MOVW_GOTTPREL_G0_NC	540	/* G(GTPREL(S+A)) - GOT */
    151 #define R_AARCH64_TLSIE_ADR_GOTTPREL_PAGE21	541	/* Page(G(GTPREL(S+A))) - Page(P) */
    152 #define R_AARCH64_TLSIE_LD64_GOTTPREL_LO12_NC	542	/* G(GTPREL(S+A)) */
    153 #define R_AARCH64_TLSIE_LD_GOTTPREL_PREL19	543	/* G(GTPREL(S+A)) - P */
    154 #define R_AARCH64_TLSLE_MOVW_TPREL_G2	544	/* TPREL(S+A) */
    155 #define R_AARCH64_MOVW_TPREL_G1		545	/* TPREL(S+A) */
    156 #define R_AARCH64_MOVW_TPREL_G1_NC	546	/* TPREL(S+A) */
    157 #define R_AARCH64_MOVW_TPREL_G0		547	/* TPREL(S+A) */
    158 #define R_AARCH64_MOVW_TPREL_G0_NC	548	/* TPREL(S+A) */
    159 #define R_AARCH64_ADD_TPREL_HI12	549	/* TPREL(S+A) */
    160 #define R_AARCH64_ADD_TPREL_LO12	550	/* TPREL(S+A) */
    161 #define R_AARCH64_ADD_TPREL_LO12_NC	551	/* TPREL(S+A) */
    162 #define R_AARCH64_LDST8_TPREL_LO12	552	/* TPREL(S+A) */
    163 #define R_AARCH64_LDST8_TPREL_LO12_NC	553	/* TPREL(S+A) */
    164 #define R_AARCH64_LDST16_TPREL_LO12	554	/* TPREL(S+A) */
    165 #define R_AARCH64_LDST16_TPREL_LO12_NC	555	/* TPREL(S+A) */
    166 #define R_AARCH64_LDST32_TPREL_LO12	556	/* TPREL(S+A) */
    167 #define R_AARCH64_LDST32_TPREL_LO12_NC	557	/* TPREL(S+A) */
    168 #define R_AARCH64_LDST64_TPREL_LO12	558	/* TPREL(S+A) */
    169 #define R_AARCH64_LDST64_TPREL_LO12_NC	559	/* TPREL(S+A) */
    170 #define R_AARCH64_TLSDESC_LD_PREL19	560	/* G(GTLSDESC(S+A)) - P */
    171 #define R_AARCH64_TLSDESC_LD_PREL21	561	/* G(GTLSDESC(S+A)) - P */
    172 #define R_AARCH64_TLSDESC_LD_PAGE21	562	/* Page(G(GTLSDESC(S+A))) - Page(P) */
    173 #define R_AARCH64_TLSDESC_LD64_LO12	563	/* G(GTLSDESC(S+A)) */
    174 #define R_AARCH64_TLSDESC_ADD_LO12	564	/* G(GTLSDESC(S+A)) */
    175 #define R_AARCH64_TLSDESC_OFF_G1	565	/* G(GTLSDESC(S+A)) - GOT */
    176 #define R_AARCH64_TLSDESC_OFF_G0_NC	566	/* G(GTLSDESC(S+A)) - GOT */
    177 #define R_AARCH64_TLSDESC_LDR		567	/* */
    178 #define R_AARCH64_TLSDESC_ADD		568	/* */
    179 #define R_AARCH64_TLSDESC_CALL		569	/* */
    180 #define R_AARCH64_TLSLE_LDST128_TPREL_LO12	570	/* TPREL(S+A) */
    181 #define R_AARCH64_TLSLE_LDST128_TPREL_LO12_NC	571	/* TPREL(S+A) */
    182 #define R_AARCH64_TLSLD_LDST128_DTPREL_LO12	572	/* DTPREL(S+A) */
    183 #define R_AARCH64_TLSLD_LDST128_DTPREL_LO12_NC	573	/* DTPREL(S+A) */
    184 
    185 /* Dynamic Relocations */
    186 #define R_AARCH64_P32_COPY		180
    187 #define R_AARCH64_P32_GLOB_DAT		181	/* S + A */
    188 #define R_AARCH64_P32_JUMP_SLOT		182	/* S + A */
    189 #define R_AARCH64_P32_RELATIVE		183	/* Delta(S) + A */
    190 #define R_AARCH64_P32_TLS_DTPREL	184	/* DTPREL(S+A) */
    191 #define R_AARCH64_P32_TLS_DTPMOD	185	/* LBM(S) */
    192 #define R_AARCH64_P32_TLS_TPREL		186	/* TPREL(S+A) */
    193 #define R_AARCH64_P32_TLSDESC		187	/* TLSDESC(S+A) */
    194 #define R_AARCH64_P32_IRELATIVE		188	/* Indirect(Delta(S) + A) */
    195 
    196 #define R_AARCH64_COPY			1024
    197 #define R_AARCH64_GLOB_DAT		1025	/* S + A */
    198 #define R_AARCH64_JUMP_SLOT		1026	/* S + A */
    199 #define R_AARCH64_RELATIVE		1027	/* Delta(S) + A */
    200 #define R_AARCH64_TLS_DTPREL64		1028	/* DTPREL(S+A) */
    201 #define R_AARCH64_TLS_DTPMOD64		1029	/* LBM(S) */
    202 #define R_AARCH64_TLS_TPREL64		1030	/* TPREL(S+A) */
    203 #define R_AARCH64_TLSDESC		1031	/* TLSDESC(S+A) */
    204 #define R_AARCH64_IRELATIVE		1032	/* Indirect(Delta(S) + A) */
    205 
    206 /* Processor specific program header types */
    207 #define PT_AARCH64_ARCHEXT	(PT_LOPROC + 0)
    208 #define PT_AARCH64_UNWIND	(PT_LOPROC + 1)
    209 
    210 /* Processor specific section header flags */
    211 #define SHF_ENTRYSECT		0x10000000
    212 #define SHF_COMDEF		0x80000000
    213 
    214 #define SHT_AARCH64_ATTRIBUTES	(SHT_LOPROC + 3)
    215 
    216 #endif /* !defined(_SYS_ELFDEFINITIONS_H_) */
    217 
    218 /*
    219  * Local symbols.
    220  */
    221 
    222 #if defined(__AARCH64EB__)
    223 #define ELF64_MACHDEP_ENDIANNESS	ELFDATA2MSB
    224 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2MSB
    225 #else
    226 #define ELF64_MACHDEP_ENDIANNESS	ELFDATA2LSB
    227 #define ELF32_MACHDEP_ENDIANNESS	ELFDATA2LSB
    228 #endif
    229 
    230 #define ELF32_MACHDEP_ID_CASES						\
    231 		case EM_ARM:						\
    232 			break;
    233 
    234 #define	ELF64_MACHDEP_ID_CASES						\
    235 		case EM_AARCH64:					\
    236 			break;
    237 
    238 #define	ELF64_MACHDEP_ID	EM_AARCH64
    239 #define ELF32_MACHDEP_ID	EM_ARM
    240 
    241 #define	KERN_ELFSIZE		64
    242 #define ARCH_ELFSIZE		64	/* MD native binary size */
    243 
    244 
    245 #define R_TYPE(name)		R_AARCH64_ ## name
    246 #define R_TLS_TYPE(name)	R_AARCH64_ ## name ## 64
    247 
    248 #ifdef _KERNEL
    249 #ifdef ELFSIZE
    250 #define	ELF_MD_PROBE_FUNC	ELFNAME2(aarch64_netbsd,probe)
    251 #endif
    252 
    253 struct exec_package;
    254 
    255 int aarch64_netbsd_elf64_probe(struct lwp *, struct exec_package *, void *,
    256 	char *, vaddr_t *);
    257 int aarch64_netbsd_elf32_probe(struct lwp *, struct exec_package *, void *,
    258 	char *, vaddr_t *);
    259 #endif
    260 
    261 #elif defined(__arm__)
    262 
    263 #include <arm/elf_machdep.h>
    264 
    265 #endif
    266 
    267 #endif /* _AARCH64_ELF_MACHDEP_H_ */
    268