On 26/02/2025 11:44, Thomas Weißschuh wrote:
It will be used by the vDSO selftests.
Signed-off-by: Thomas Weißschuh thomas.weissschuh@linutronix.de
Reviewed-by: Vincenzo Frascino vincenzo.frascino@arm.com
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.
- System V ABI AMD64 Architecture Processor Supplement
- Draft Version 0.99.4,
- January 13, 2010.
- */
+#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 */