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linux_dsm_epyc7002/include/uapi/linux/elf.h
Kristina Martsenko d0a060be57 arm64: add ptrace regsets for ptrauth key management 
Add two new ptrace regsets, which can be used to request and change the
pointer authentication keys of a thread. NT_ARM_PACA_KEYS gives access
to the instruction/data address keys, and NT_ARM_PACG_KEYS to the
generic authentication key. The keys are also part of the core dump file
of the process.

The regsets are only exposed if the kernel is compiled with
CONFIG_CHECKPOINT_RESTORE=y, as the only intended use case is
checkpointing and restoring processes that are using pointer
authentication. (This can be changed later if there are other use
cases.)

Reviewed-by: Dave Martin <Dave.Martin@arm.com>
Signed-off-by: Kristina Martsenko <kristina.martsenko@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2019-02-01 13:56:58 +00:00

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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
#ifndef _UAPI_LINUX_ELF_H
#define _UAPI_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;
/* 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;
/* 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 0x6474e550
#define PT_GNU_STACK (PT_LOOS + 0x474e551)
/*
* 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.
* http://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_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 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 ELF_ST_BIND(x) ((x) >> 4)
#define ELF_ST_TYPE(x) (((unsigned int) 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 dynamic{
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_RELA_LIVEPATCH 0x00100000
#define SHF_RO_AFTER_INIT 0x00200000
#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
/*
* 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 NT_PRSTATUS 1
#define NT_PRFPREG 2
#define NT_PRPSINFO 3
#define NT_TASKSTRUCT 4
#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 NT_SIGINFO 0x53494749
#define NT_FILE 0x46494c45
#define NT_PRXFPREG 0x46e62b7f /* copied from gdb5.1/include/elf/common.h */
#define NT_PPC_VMX 0x100 /* PowerPC Altivec/VMX registers */
#define NT_PPC_SPE 0x101 /* PowerPC SPE/EVR registers */
#define NT_PPC_VSX 0x102 /* PowerPC VSX registers */
#define NT_PPC_TAR 0x103 /* Target Address Register */
#define NT_PPC_PPR 0x104 /* Program Priority Register */
#define NT_PPC_DSCR 0x105 /* Data Stream Control Register */
#define NT_PPC_EBB 0x106 /* Event Based Branch Registers */
#define NT_PPC_PMU 0x107 /* Performance Monitor Registers */
#define NT_PPC_TM_CGPR 0x108 /* TM checkpointed GPR Registers */
#define NT_PPC_TM_CFPR 0x109 /* TM checkpointed FPR Registers */
#define NT_PPC_TM_CVMX 0x10a /* TM checkpointed VMX Registers */
#define NT_PPC_TM_CVSX 0x10b /* TM checkpointed VSX Registers */
#define NT_PPC_TM_SPR 0x10c /* TM Special Purpose Registers */
#define NT_PPC_TM_CTAR 0x10d /* TM checkpointed Target Address Register */
#define NT_PPC_TM_CPPR 0x10e /* TM checkpointed Program Priority Register */
#define NT_PPC_TM_CDSCR 0x10f /* TM checkpointed Data Stream Control Register */
#define NT_PPC_PKEY 0x110 /* Memory Protection Keys registers */
#define NT_386_TLS 0x200 /* i386 TLS slots (struct user_desc) */
#define NT_386_IOPERM 0x201 /* x86 io permission bitmap (1=deny) */
#define NT_X86_XSTATE 0x202 /* x86 extended state using xsave */
#define NT_S390_HIGH_GPRS 0x300 /* s390 upper register halves */
#define NT_S390_TIMER 0x301 /* s390 timer register */
#define NT_S390_TODCMP 0x302 /* s390 TOD clock comparator register */
#define NT_S390_TODPREG 0x303 /* s390 TOD programmable register */
#define NT_S390_CTRS 0x304 /* s390 control registers */
#define NT_S390_PREFIX 0x305 /* s390 prefix register */
#define NT_S390_LAST_BREAK 0x306 /* s390 breaking event address */
#define NT_S390_SYSTEM_CALL 0x307 /* s390 system call restart data */
#define NT_S390_TDB 0x308 /* s390 transaction diagnostic block */
#define NT_S390_VXRS_LOW 0x309 /* s390 vector registers 0-15 upper half */
#define NT_S390_VXRS_HIGH 0x30a /* s390 vector registers 16-31 */
#define NT_S390_GS_CB 0x30b /* s390 guarded storage registers */
#define NT_S390_GS_BC 0x30c /* s390 guarded storage broadcast control block */
#define NT_S390_RI_CB 0x30d /* s390 runtime instrumentation */
#define NT_ARM_VFP 0x400 /* ARM VFP/NEON registers */
#define NT_ARM_TLS 0x401 /* ARM TLS register */
#define NT_ARM_HW_BREAK 0x402 /* ARM hardware breakpoint registers */
#define NT_ARM_HW_WATCH 0x403 /* ARM hardware watchpoint registers */
#define NT_ARM_SYSTEM_CALL 0x404 /* ARM system call number */
#define NT_ARM_SVE 0x405 /* ARM Scalable Vector Extension registers */
#define NT_ARM_PAC_MASK 0x406 /* ARM pointer authentication code masks */
#define NT_ARM_PACA_KEYS 0x407 /* ARM pointer authentication address keys */
#define NT_ARM_PACG_KEYS 0x408 /* ARM pointer authentication generic key */
#define NT_ARC_V2 0x600 /* ARCv2 accumulator/extra registers */
#define NT_VMCOREDD 0x700 /* Vmcore Device Dump Note */
#define NT_MIPS_DSP 0x800 /* MIPS DSP ASE registers */
#define NT_MIPS_FP_MODE 0x801 /* MIPS floating-point mode */
#define NT_MIPS_MSA 0x802 /* MIPS SIMD 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;
#endif /* _UAPI_LINUX_ELF_H */
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