path: root/include/arch/x86_64/linux/elf.h

/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _LINUX_ELF_H
#define _LINUX_ELF_H

#include <linux/types.h>
#include <linux/elf-em.h>

/* 32-bit ELF base types. */
typedef __u32 Elf32_Addr;
typedef __u16 Elf32_Half;
typedef __u32 Elf32_Off;
typedef __s32 Elf32_Sword;
typedef __u32 Elf32_Word;
typedef __u16 Elf32_Versym;

/* 64-bit ELF base types. */
typedef __u64 Elf64_Addr;
typedef __u16 Elf64_Half;
typedef __s16 Elf64_SHalf;
typedef __u64 Elf64_Off;
typedef __s32 Elf64_Sword;
typedef __u32 Elf64_Word;
typedef __u64 Elf64_Xword;
typedef __s64 Elf64_Sxword;
typedef __u16 Elf64_Versym;

/* These constants are for the segment types stored in the image headers */
#define PT_NULL		0
#define PT_LOAD		1
#define PT_DYNAMIC	2
#define PT_INTERP	3
#define PT_NOTE		4
#define PT_SHLIB	5
#define PT_PHDR		6
#define PT_TLS		7	   /* Thread local storage segment */
#define PT_LOOS		0x60000000 /* OS-specific */
#define PT_HIOS		0x6fffffff /* OS-specific */
#define PT_LOPROC	0x70000000
#define PT_HIPROC	0x7fffffff
#define PT_GNU_EH_FRAME (PT_LOOS + 0x474e550)
#define PT_GNU_STACK	(PT_LOOS + 0x474e551)
#define PT_GNU_RELRO	(PT_LOOS + 0x474e552)
#define PT_GNU_PROPERTY (PT_LOOS + 0x474e553)

/* ARM MTE memory tag segment type */
#define PT_AARCH64_MEMTAG_MTE (PT_LOPROC + 0x2)

/*
 * Extended Numbering
 *
 * If the real number of program header table entries is larger than
 * or equal to PN_XNUM(0xffff), it is set to sh_info field of the
 * section header at index 0, and PN_XNUM is set to e_phnum
 * field. Otherwise, the section header at index 0 is zero
 * initialized, if it exists.
 *
 * Specifications are available in:
 *
 * - Oracle: Linker and Libraries.
 *   Part No: 817–1984–19, August 2011.
 *   https://docs.oracle.com/cd/E18752_01/pdf/817-1984.pdf
 *
 * - System V ABI AMD64 Architecture Processor Supplement
 *   Draft Version 0.99.4,
 *   January 13, 2010.
 *   http://www.cs.washington.edu/education/courses/cse351/12wi/supp-docs/abi.pdf
 */
#define PN_XNUM 0xffff

/* These constants define the different elf file types */
#define ET_NONE	  0
#define ET_REL	  1
#define ET_EXEC	  2
#define ET_DYN	  3
#define ET_CORE	  4
#define ET_LOPROC 0xff00
#define ET_HIPROC 0xffff

/* This is the info that is needed to parse the dynamic section of the file */
#define DT_NULL	      0
#define DT_NEEDED     1
#define DT_PLTRELSZ   2
#define DT_PLTGOT     3
#define DT_HASH	      4
#define DT_STRTAB     5
#define DT_SYMTAB     6
#define DT_RELA	      7
#define DT_RELASZ     8
#define DT_RELAENT    9
#define DT_STRSZ      10
#define DT_SYMENT     11
#define DT_INIT	      12
#define DT_FINI	      13
#define DT_SONAME     14
#define DT_RPATH      15
#define DT_SYMBOLIC   16
#define DT_REL	      17
#define DT_RELSZ      18
#define DT_RELENT     19
#define DT_PLTREL     20
#define DT_DEBUG      21
#define DT_TEXTREL    22
#define DT_JMPREL     23
#define DT_ENCODING   32
#define OLD_DT_LOOS   0x60000000
#define DT_LOOS	      0x6000000d
#define DT_HIOS	      0x6ffff000
#define DT_VALRNGLO   0x6ffffd00
#define DT_VALRNGHI   0x6ffffdff
#define DT_ADDRRNGLO  0x6ffffe00
#define DT_GNU_HASH   0x6ffffef5
#define DT_ADDRRNGHI  0x6ffffeff
#define DT_VERSYM     0x6ffffff0
#define DT_RELACOUNT  0x6ffffff9
#define DT_RELCOUNT   0x6ffffffa
#define DT_FLAGS_1    0x6ffffffb
#define DT_VERDEF     0x6ffffffc
#define DT_VERDEFNUM  0x6ffffffd
#define DT_VERNEED    0x6ffffffe
#define DT_VERNEEDNUM 0x6fffffff
#define OLD_DT_HIOS   0x6fffffff
#define DT_LOPROC     0x70000000
#define DT_HIPROC     0x7fffffff

/* This info is needed when parsing the symbol table */
#define STB_LOCAL  0
#define STB_GLOBAL 1
#define STB_WEAK   2

#define STN_UNDEF 0

#define STT_NOTYPE  0
#define STT_OBJECT  1
#define STT_FUNC    2
#define STT_SECTION 3
#define STT_FILE    4
#define STT_COMMON  5
#define STT_TLS	    6

#define VER_FLG_BASE 0x1
#define VER_FLG_WEAK 0x2

#define ELF_ST_BIND(x)	 ((x) >> 4)
#define ELF_ST_TYPE(x)	 ((x) & 0xf)
#define ELF32_ST_BIND(x) ELF_ST_BIND(x)
#define ELF32_ST_TYPE(x) ELF_ST_TYPE(x)
#define ELF64_ST_BIND(x) ELF_ST_BIND(x)
#define ELF64_ST_TYPE(x) ELF_ST_TYPE(x)

typedef struct {
	Elf32_Sword d_tag;
	union {
		Elf32_Sword d_val;
		Elf32_Addr d_ptr;
	} d_un;
} Elf32_Dyn;

typedef struct {
	Elf64_Sxword d_tag; /* entry tag value */
	union {
		Elf64_Xword d_val;
		Elf64_Addr d_ptr;
	} d_un;
} Elf64_Dyn;

/* The following are used with relocations */
#define ELF32_R_SYM(x)	((x) >> 8)
#define ELF32_R_TYPE(x) ((x) & 0xff)

#define ELF64_R_SYM(i)	((i) >> 32)
#define ELF64_R_TYPE(i) ((i) & 0xffffffff)

typedef struct elf32_rel {
	Elf32_Addr r_offset;
	Elf32_Word r_info;
} Elf32_Rel;

typedef struct elf64_rel {
	Elf64_Addr r_offset; /* Location at which to apply the action */
	Elf64_Xword r_info;  /* index and type of relocation */
} Elf64_Rel;

typedef struct elf32_rela {
	Elf32_Addr r_offset;
	Elf32_Word r_info;
	Elf32_Sword r_addend;
} Elf32_Rela;

typedef struct elf64_rela {
	Elf64_Addr r_offset;   /* Location at which to apply the action */
	Elf64_Xword r_info;    /* index and type of relocation */
	Elf64_Sxword r_addend; /* Constant addend used to compute value */
} Elf64_Rela;

typedef struct elf32_sym {
	Elf32_Word st_name;
	Elf32_Addr st_value;
	Elf32_Word st_size;
	unsigned char st_info;
	unsigned char st_other;
	Elf32_Half st_shndx;
} Elf32_Sym;

typedef struct elf64_sym {
	Elf64_Word st_name;	/* Symbol name, index in string tbl */
	unsigned char st_info;	/* Type and binding attributes */
	unsigned char st_other; /* No defined meaning, 0 */
	Elf64_Half st_shndx;	/* Associated section index */
	Elf64_Addr st_value;	/* Value of the symbol */
	Elf64_Xword st_size;	/* Associated symbol size */
} Elf64_Sym;

#define EI_NIDENT 16

typedef struct elf32_hdr {
	unsigned char e_ident[EI_NIDENT];
	Elf32_Half e_type;
	Elf32_Half e_machine;
	Elf32_Word e_version;
	Elf32_Addr e_entry; /* Entry point */
	Elf32_Off e_phoff;
	Elf32_Off e_shoff;
	Elf32_Word e_flags;
	Elf32_Half e_ehsize;
	Elf32_Half e_phentsize;
	Elf32_Half e_phnum;
	Elf32_Half e_shentsize;
	Elf32_Half e_shnum;
	Elf32_Half e_shstrndx;
} Elf32_Ehdr;

typedef struct elf64_hdr {
	unsigned char e_ident[EI_NIDENT]; /* ELF "magic number" */
	Elf64_Half e_type;
	Elf64_Half e_machine;
	Elf64_Word e_version;
	Elf64_Addr e_entry; /* Entry point virtual address */
	Elf64_Off e_phoff;  /* Program header table file offset */
	Elf64_Off e_shoff;  /* Section header table file offset */
	Elf64_Word e_flags;
	Elf64_Half e_ehsize;
	Elf64_Half e_phentsize;
	Elf64_Half e_phnum;
	Elf64_Half e_shentsize;
	Elf64_Half e_shnum;
	Elf64_Half e_shstrndx;
} Elf64_Ehdr;

/* These constants define the permissions on sections in the program
   header, p_flags. */
#define PF_R 0x4
#define PF_W 0x2
#define PF_X 0x1

typedef struct elf32_phdr {
	Elf32_Word p_type;
	Elf32_Off p_offset;
	Elf32_Addr p_vaddr;
	Elf32_Addr p_paddr;
	Elf32_Word p_filesz;
	Elf32_Word p_memsz;
	Elf32_Word p_flags;
	Elf32_Word p_align;
} Elf32_Phdr;

typedef struct elf64_phdr {
	Elf64_Word p_type;
	Elf64_Word p_flags;
	Elf64_Off p_offset;   /* Segment file offset */
	Elf64_Addr p_vaddr;   /* Segment virtual address */
	Elf64_Addr p_paddr;   /* Segment physical address */
	Elf64_Xword p_filesz; /* Segment size in file */
	Elf64_Xword p_memsz;  /* Segment size in memory */
	Elf64_Xword p_align;  /* Segment alignment, file & memory */
} Elf64_Phdr;

/* sh_type */
#define SHT_NULL     0
#define SHT_PROGBITS 1
#define SHT_SYMTAB   2
#define SHT_STRTAB   3
#define SHT_RELA     4
#define SHT_HASH     5
#define SHT_DYNAMIC  6
#define SHT_NOTE     7
#define SHT_NOBITS   8
#define SHT_REL	     9
#define SHT_SHLIB    10
#define SHT_DYNSYM   11
#define SHT_NUM	     12
#define SHT_LOPROC   0x70000000
#define SHT_HIPROC   0x7fffffff
#define SHT_LOUSER   0x80000000
#define SHT_HIUSER   0xffffffff

/* sh_flags */
#define SHF_WRITE	     0x1
#define SHF_ALLOC	     0x2
#define SHF_EXECINSTR	     0x4
#define SHF_MERGE	     0x10
#define SHF_STRINGS	     0x20
#define SHF_INFO_LINK	     0x40
#define SHF_LINK_ORDER	     0x80
#define SHF_OS_NONCONFORMING 0x100
#define SHF_GROUP	     0x200
#define SHF_TLS		     0x400
#define SHF_RELA_LIVEPATCH   0x00100000
#define SHF_RO_AFTER_INIT    0x00200000
#define SHF_ORDERED	     0x04000000
#define SHF_EXCLUDE	     0x08000000
#define SHF_MASKOS	     0x0ff00000
#define SHF_MASKPROC	     0xf0000000

/* special section indexes */
#define SHN_UNDEF     0
#define SHN_LORESERVE 0xff00
#define SHN_LOPROC    0xff00
#define SHN_HIPROC    0xff1f
#define SHN_LIVEPATCH 0xff20
#define SHN_ABS	      0xfff1
#define SHN_COMMON    0xfff2
#define SHN_HIRESERVE 0xffff

typedef struct elf32_shdr {
	Elf32_Word sh_name;
	Elf32_Word sh_type;
	Elf32_Word sh_flags;
	Elf32_Addr sh_addr;
	Elf32_Off sh_offset;
	Elf32_Word sh_size;
	Elf32_Word sh_link;
	Elf32_Word sh_info;
	Elf32_Word sh_addralign;
	Elf32_Word sh_entsize;
} Elf32_Shdr;

typedef struct elf64_shdr {
	Elf64_Word sh_name;	  /* Section name, index in string tbl */
	Elf64_Word sh_type;	  /* Type of section */
	Elf64_Xword sh_flags;	  /* Miscellaneous section attributes */
	Elf64_Addr sh_addr;	  /* Section virtual addr at execution */
	Elf64_Off sh_offset;	  /* Section file offset */
	Elf64_Xword sh_size;	  /* Size of section in bytes */
	Elf64_Word sh_link;	  /* Index of another section */
	Elf64_Word sh_info;	  /* Additional section information */
	Elf64_Xword sh_addralign; /* Section alignment */
	Elf64_Xword sh_entsize;	  /* Entry size if section holds table */
} Elf64_Shdr;

#define EI_MAG0	   0 /* e_ident[] indexes */
#define EI_MAG1	   1
#define EI_MAG2	   2
#define EI_MAG3	   3
#define EI_CLASS   4
#define EI_DATA	   5
#define EI_VERSION 6
#define EI_OSABI   7
#define EI_PAD	   8

#define ELFMAG0 0x7f /* EI_MAG */
#define ELFMAG1 'E'
#define ELFMAG2 'L'
#define ELFMAG3 'F'
#define ELFMAG	"\177ELF"
#define SELFMAG 4

#define ELFCLASSNONE 0 /* EI_CLASS */
#define ELFCLASS32   1
#define ELFCLASS64   2
#define ELFCLASSNUM  3

#define ELFDATANONE 0 /* e_ident[EI_DATA] */
#define ELFDATA2LSB 1
#define ELFDATA2MSB 2

#define EV_NONE	   0 /* e_version, EI_VERSION */
#define EV_CURRENT 1
#define EV_NUM	   2

#define ELFOSABI_NONE  0
#define ELFOSABI_LINUX 3

#ifndef ELF_OSABI
#define ELF_OSABI ELFOSABI_NONE
#endif

/* Note definitions: NN_ defines names. NT_ defines types. */

#define NN_GNU_PROPERTY_TYPE_0 "GNU"
#define NT_GNU_PROPERTY_TYPE_0 5

/*
 * Notes used in ET_CORE. Architectures export some of the arch register sets
 * using the corresponding note types via the PTRACE_GETREGSET and
 * PTRACE_SETREGSET requests.
 */
#define NN_PRSTATUS   "CORE"
#define NT_PRSTATUS   1
#define NN_PRFPREG    "CORE"
#define NT_PRFPREG    2
#define NN_PRPSINFO   "CORE"
#define NT_PRPSINFO   3
#define NN_TASKSTRUCT "CORE"
#define NT_TASKSTRUCT 4
#define NN_AUXV	      "CORE"
#define NT_AUXV	      6
/*
 * Note to userspace developers: size of NT_SIGINFO note may increase
 * in the future to accomodate more fields, don't assume it is fixed!
 */
#define NN_SIGINFO	"CORE"
#define NT_SIGINFO	0x53494749
#define NN_FILE		"CORE"
#define NT_FILE		0x46494c45
#define NN_PRXFPREG	"LINUX"
#define NT_PRXFPREG	0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
#define NN_PPC_VMX	"LINUX"
#define NT_PPC_VMX	0x100 /* PowerPC Altivec/VMX registers */
#define NN_PPC_SPE	"LINUX"
#define NT_PPC_SPE	0x101 /* PowerPC SPE/EVR registers */
#define NN_PPC_VSX	"LINUX"
#define NT_PPC_VSX	0x102 /* PowerPC VSX registers */
#define NN_PPC_TAR	"LINUX"
#define NT_PPC_TAR	0x103 /* Target Address Register */
#define NN_PPC_PPR	"LINUX"
#define NT_PPC_PPR	0x104 /* Program Priority Register */
#define NN_PPC_DSCR	"LINUX"
#define NT_PPC_DSCR	0x105 /* Data Stream Control Register */
#define NN_PPC_EBB	"LINUX"
#define NT_PPC_EBB	0x106 /* Event Based Branch Registers */
#define NN_PPC_PMU	"LINUX"
#define NT_PPC_PMU	0x107 /* Performance Monitor Registers */
#define NN_PPC_TM_CGPR	"LINUX"
#define NT_PPC_TM_CGPR	0x108 /* TM checkpointed GPR Registers */
#define NN_PPC_TM_CFPR	"LINUX"
#define NT_PPC_TM_CFPR	0x109 /* TM checkpointed FPR Registers */
#define NN_PPC_TM_CVMX	"LINUX"
#define NT_PPC_TM_CVMX	0x10a /* TM checkpointed VMX Registers */
#define NN_PPC_TM_CVSX	"LINUX"
#define NT_PPC_TM_CVSX	0x10b /* TM checkpointed VSX Registers */
#define NN_PPC_TM_SPR	"LINUX"
#define NT_PPC_TM_SPR	0x10c /* TM Special Purpose Registers */
#define NN_PPC_TM_CTAR	"LINUX"
#define NT_PPC_TM_CTAR	0x10d /* TM checkpointed Target Address Register */
#define NN_PPC_TM_CPPR	"LINUX"
#define NT_PPC_TM_CPPR	0x10e /* TM checkpointed Program Priority Register */
#define NN_PPC_TM_CDSCR "LINUX"
#define NT_PPC_TM_CDSCR                                       \
	0x10f /* TM checkpointed Data Stream Control Register \
	       */
#define NN_PPC_PKEY	"LINUX"
#define NT_PPC_PKEY	0x110 /* Memory Protection Keys registers */
#define NN_PPC_DEXCR	"LINUX"
#define NT_PPC_DEXCR	0x111 /* PowerPC DEXCR registers */
#define NN_PPC_HASHKEYR "LINUX"
#define NT_PPC_HASHKEYR 0x112 /* PowerPC HASHKEYR register */
#define NN_386_TLS	"LINUX"
#define NT_386_TLS	0x200 /* i386 TLS slots (struct user_desc) */
#define NN_386_IOPERM	"LINUX"
#define NT_386_IOPERM	0x201 /* x86 io permission bitmap (1=deny) */
#define NN_X86_XSTATE	"LINUX"
#define NT_X86_XSTATE	0x202 /* x86 extended state using xsave */
/* Old binutils treats 0x203 as a CET state */
#define NN_X86_SHSTK		  "LINUX"
#define NT_X86_SHSTK		  0x204 /* x86 SHSTK state */
#define NN_X86_XSAVE_LAYOUT	  "LINUX"
#define NT_X86_XSAVE_LAYOUT	  0x205 /* XSAVE layout description */
#define NN_S390_HIGH_GPRS	  "LINUX"
#define NT_S390_HIGH_GPRS	  0x300 /* s390 upper register halves */
#define NN_S390_TIMER		  "LINUX"
#define NT_S390_TIMER		  0x301 /* s390 timer register */
#define NN_S390_TODCMP		  "LINUX"
#define NT_S390_TODCMP		  0x302 /* s390 TOD clock comparator register */
#define NN_S390_TODPREG		  "LINUX"
#define NT_S390_TODPREG		  0x303 /* s390 TOD programmable register */
#define NN_S390_CTRS		  "LINUX"
#define NT_S390_CTRS		  0x304 /* s390 control registers */
#define NN_S390_PREFIX		  "LINUX"
#define NT_S390_PREFIX		  0x305 /* s390 prefix register */
#define NN_S390_LAST_BREAK	  "LINUX"
#define NT_S390_LAST_BREAK	  0x306 /* s390 breaking event address */
#define NN_S390_SYSTEM_CALL	  "LINUX"
#define NT_S390_SYSTEM_CALL	  0x307 /* s390 system call restart data */
#define NN_S390_TDB		  "LINUX"
#define NT_S390_TDB		  0x308 /* s390 transaction diagnostic block */
#define NN_S390_VXRS_LOW	  "LINUX"
#define NT_S390_VXRS_LOW	  0x309 /* s390 vector registers 0-15 upper half */
#define NN_S390_VXRS_HIGH	  "LINUX"
#define NT_S390_VXRS_HIGH	  0x30a /* s390 vector registers 16-31 */
#define NN_S390_GS_CB		  "LINUX"
#define NT_S390_GS_CB		  0x30b /* s390 guarded storage registers */
#define NN_S390_GS_BC		  "LINUX"
#define NT_S390_GS_BC		  0x30c /* s390 guarded storage broadcast control block */
#define NN_S390_RI_CB		  "LINUX"
#define NT_S390_RI_CB		  0x30d /* s390 runtime instrumentation */
#define NN_S390_PV_CPU_DATA	  "LINUX"
#define NT_S390_PV_CPU_DATA	  0x30e /* s390 protvirt cpu dump data */
#define NN_ARM_VFP		  "LINUX"
#define NT_ARM_VFP		  0x400 /* ARM VFP/NEON registers */
#define NN_ARM_TLS		  "LINUX"
#define NT_ARM_TLS		  0x401 /* ARM TLS register */
#define NN_ARM_HW_BREAK		  "LINUX"
#define NT_ARM_HW_BREAK		  0x402 /* ARM hardware breakpoint registers */
#define NN_ARM_HW_WATCH		  "LINUX"
#define NT_ARM_HW_WATCH		  0x403 /* ARM hardware watchpoint registers */
#define NN_ARM_SYSTEM_CALL	  "LINUX"
#define NT_ARM_SYSTEM_CALL	  0x404 /* ARM system call number */
#define NN_ARM_SVE		  "LINUX"
#define NT_ARM_SVE		  0x405 /* ARM Scalable Vector Extension registers */
#define NN_ARM_PAC_MASK		  "LINUX"
#define NT_ARM_PAC_MASK		  0x406 /* ARM pointer authentication code masks */
#define NN_ARM_PACA_KEYS	  "LINUX"
#define NT_ARM_PACA_KEYS	  0x407 /* ARM pointer authentication address keys */
#define NN_ARM_PACG_KEYS	  "LINUX"
#define NT_ARM_PACG_KEYS	  0x408 /* ARM pointer authentication generic key */
#define NN_ARM_TAGGED_ADDR_CTRL	  "LINUX"
#define NT_ARM_TAGGED_ADDR_CTRL	  0x409 /* arm64 tagged address control (prctl()) */
#define NN_ARM_PAC_ENABLED_KEYS	  "LINUX"
#define NT_ARM_PAC_ENABLED_KEYS	  0x40a /* arm64 ptr auth enabled keys (prctl()) */
#define NN_ARM_SSVE		  "LINUX"
#define NT_ARM_SSVE		  0x40b /* ARM Streaming SVE registers */
#define NN_ARM_ZA		  "LINUX"
#define NT_ARM_ZA		  0x40c /* ARM SME ZA registers */
#define NN_ARM_ZT		  "LINUX"
#define NT_ARM_ZT		  0x40d /* ARM SME ZT registers */
#define NN_ARM_FPMR		  "LINUX"
#define NT_ARM_FPMR		  0x40e /* ARM floating point mode register */
#define NN_ARM_POE		  "LINUX"
#define NT_ARM_POE		  0x40f /* ARM POE registers */
#define NN_ARM_GCS		  "LINUX"
#define NT_ARM_GCS		  0x410 /* ARM GCS state */
#define NN_ARC_V2		  "LINUX"
#define NT_ARC_V2		  0x600 /* ARCv2 accumulator/extra registers */
#define NN_VMCOREDD		  "LINUX"
#define NT_VMCOREDD		  0x700 /* Vmcore Device Dump Note */
#define NN_MIPS_DSP		  "LINUX"
#define NT_MIPS_DSP		  0x800 /* MIPS DSP ASE registers */
#define NN_MIPS_FP_MODE		  "LINUX"
#define NT_MIPS_FP_MODE		  0x801 /* MIPS floating-point mode */
#define NN_MIPS_MSA		  "LINUX"
#define NT_MIPS_MSA		  0x802 /* MIPS SIMD registers */
#define NN_RISCV_CSR		  "LINUX"
#define NT_RISCV_CSR		  0x900 /* RISC-V Control and Status Registers */
#define NN_RISCV_VECTOR		  "LINUX"
#define NT_RISCV_VECTOR		  0x901 /* RISC-V vector registers */
#define NN_RISCV_TAGGED_ADDR_CTRL "LINUX"
#define NT_RISCV_TAGGED_ADDR_CTRL 0x902 /* RISC-V tagged address control (prctl()) */
#define NN_LOONGARCH_CPUCFG	  "LINUX"
#define NT_LOONGARCH_CPUCFG	  0xa00 /* LoongArch CPU config registers */
#define NN_LOONGARCH_CSR	  "LINUX"
#define NT_LOONGARCH_CSR	  0xa01 /* LoongArch control and status registers */
#define NN_LOONGARCH_LSX	  "LINUX"
#define NT_LOONGARCH_LSX                                     \
	0xa02 /* LoongArch Loongson SIMD Extension registers \
	       */
#define NN_LOONGARCH_LASX     "LINUX"
#define NT_LOONGARCH_LASX     0xa03 /* LoongArch Loongson Advanced SIMD Extension registers */
#define NN_LOONGARCH_LBT      "LINUX"
#define NT_LOONGARCH_LBT      0xa04 /* LoongArch Loongson Binary Translation registers */
#define NN_LOONGARCH_HW_BREAK "LINUX"
#define NT_LOONGARCH_HW_BREAK 0xa05 /* LoongArch hardware breakpoint registers */
#define NN_LOONGARCH_HW_WATCH "LINUX"
#define NT_LOONGARCH_HW_WATCH 0xa06 /* LoongArch hardware watchpoint registers */

/* Note header in a PT_NOTE section */
typedef struct elf32_note {
	Elf32_Word n_namesz; /* Name size */
	Elf32_Word n_descsz; /* Content size */
	Elf32_Word n_type;   /* Content type */
} Elf32_Nhdr;

/* Note header in a PT_NOTE section */
typedef struct elf64_note {
	Elf64_Word n_namesz; /* Name size */
	Elf64_Word n_descsz; /* Content size */
	Elf64_Word n_type;   /* Content type */
} Elf64_Nhdr;

/* .note.gnu.property types for EM_AARCH64: */
#define GNU_PROPERTY_AARCH64_FEATURE_1_AND 0xc0000000

/* Bits for GNU_PROPERTY_AARCH64_FEATURE_1_BTI */
#define GNU_PROPERTY_AARCH64_FEATURE_1_BTI (1U << 0)

typedef struct {
	Elf32_Half vd_version;
	Elf32_Half vd_flags;
	Elf32_Half vd_ndx;
	Elf32_Half vd_cnt;
	Elf32_Word vd_hash;
	Elf32_Word vd_aux;
	Elf32_Word vd_next;
} Elf32_Verdef;

typedef struct {
	Elf64_Half vd_version;
	Elf64_Half vd_flags;
	Elf64_Half vd_ndx;
	Elf64_Half vd_cnt;
	Elf64_Word vd_hash;
	Elf64_Word vd_aux;
	Elf64_Word vd_next;
} Elf64_Verdef;

typedef struct {
	Elf32_Word vda_name;
	Elf32_Word vda_next;
} Elf32_Verdaux;

typedef struct {
	Elf64_Word vda_name;
	Elf64_Word vda_next;
} Elf64_Verdaux;

#endif /* _LINUX_ELF_H */