On 26/02/2025 11:44, Thomas Weißschuh wrote: > It will be used by the vDSO selftests. > > Signed-off-by: Thomas Weißschuh <thomas.weissschuh@xxxxxxxxxxxxx> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@xxxxxxx> > --- > tools/include/uapi/linux/elf.h | 524 +++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 524 insertions(+) > > diff --git a/tools/include/uapi/linux/elf.h b/tools/include/uapi/linux/elf.h > new file mode 100644 > index 0000000000000000000000000000000000000000..3d0935a11613bbcf8c381188de3a10bafd6cc29f > --- /dev/null > +++ b/tools/include/uapi/linux/elf.h > @@ -0,0 +1,524 @@ > +/* 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_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. > + * The note name for these types is "LINUX", except NT_PRFPREG that is named > + * "CORE". > + */ > +#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_PPC_DEXCR 0x111 /* PowerPC DEXCR registers */ > +#define NT_PPC_HASHKEYR 0x112 /* PowerPC HASHKEYR register */ > +#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 */ > +/* Old binutils treats 0x203 as a CET state */ > +#define NT_X86_SHSTK 0x204 /* x86 SHSTK state */ > +#define NT_X86_XSAVE_LAYOUT 0x205 /* XSAVE layout description */ > +#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_S390_PV_CPU_DATA 0x30e /* s390 protvirt cpu dump data */ > +#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_ARM_TAGGED_ADDR_CTRL 0x409 /* arm64 tagged address control (prctl()) */ > +#define NT_ARM_PAC_ENABLED_KEYS 0x40a /* arm64 ptr auth enabled keys (prctl()) */ > +#define NT_ARM_SSVE 0x40b /* ARM Streaming SVE registers */ > +#define NT_ARM_ZA 0x40c /* ARM SME ZA registers */ > +#define NT_ARM_ZT 0x40d /* ARM SME ZT registers */ > +#define NT_ARM_FPMR 0x40e /* ARM floating point mode register */ > +#define NT_ARM_POE 0x40f /* ARM POE registers */ > +#define NT_ARM_GCS 0x410 /* ARM GCS state */ > +#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 */ > +#define NT_RISCV_CSR 0x900 /* RISC-V Control and Status Registers */ > +#define NT_RISCV_VECTOR 0x901 /* RISC-V vector registers */ > +#define NT_RISCV_TAGGED_ADDR_CTRL 0x902 /* RISC-V tagged address control (prctl()) */ > +#define NT_LOONGARCH_CPUCFG 0xa00 /* LoongArch CPU config registers */ > +#define NT_LOONGARCH_CSR 0xa01 /* LoongArch control and status registers */ > +#define NT_LOONGARCH_LSX 0xa02 /* LoongArch Loongson SIMD Extension registers */ > +#define NT_LOONGARCH_LASX 0xa03 /* LoongArch Loongson Advanced SIMD Extension registers */ > +#define NT_LOONGARCH_LBT 0xa04 /* LoongArch Loongson Binary Translation registers */ > +#define NT_LOONGARCH_HW_BREAK 0xa05 /* LoongArch hardware breakpoint registers */ > +#define NT_LOONGARCH_HW_WATCH 0xa06 /* LoongArch hardware watchpoint registers */ > + > +/* Note types with note name "GNU" */ > +#define NT_GNU_PROPERTY_TYPE_0 5 > + > +/* 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 */ > -- Regards, Vincenzo
