* SPDX-License-Identifier: BSD-3-Clause
*/
-/*
- * This is the ELF ABI header file
- * formerly known as "elf_abi.h".
- */
+/* This is the ELF ABI header file formerly known as "elf_abi.h" */
#ifndef _ELF_H
#define _ELF_H
#ifndef __ASSEMBLER__
#include "compiler.h"
-/*
- * This version doesn't work for 64-bit ABIs - Erik.
- */
+/* This version doesn't work for 64-bit ABIs - Erik */
-/*
- * These typedefs need to be handled better.
- */
+/* These typedefs need to be handled better */
typedef uint32_t Elf32_Addr; /* Unsigned program address */
typedef uint32_t Elf32_Off; /* Unsigned file offset */
typedef int32_t Elf32_Sword; /* Signed large integer */
typedef uint32_t Elf32_Word; /* Unsigned large integer */
typedef uint16_t Elf32_Half; /* Unsigned medium integer */
-/* 64-bit ELF base types. */
+/* 64-bit ELF base types */
typedef uint64_t Elf64_Addr;
typedef uint16_t Elf64_Half;
typedef int16_t Elf64_SHalf;
(ehdr).e_ident[EI_MAG3] == ELFMAG3)
/* ELF Header */
-typedef struct elfhdr{
+typedef struct {
unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
Elf32_Half e_type; /* object file type */
Elf32_Half e_machine; /* machine */
#define ET_CORE 4 /* core file */
#define ET_NUM 5 /* number of types */
#define ET_LOOS 0xfe00 /* reserved range for operating */
-#define ET_HIOS 0xfeff /* system specific e_type */
+#define ET_HIOS 0xfeff /* system specific e_type */
#define ET_LOPROC 0xff00 /* reserved range for processor */
-#define ET_HIPROC 0xffff /* specific e_type */
+#define ET_HIPROC 0xffff /* specific e_type */
/* e_machine */
#define EM_NONE 0 /* No Machine */
#define SHN_UNDEF 0 /* undefined */
#define SHN_LORESERVE 0xff00 /* lower bounds of reserved indexes */
#define SHN_LOPROC 0xff00 /* reserved range for processor */
-#define SHN_HIPROC 0xff1f /* specific section indexes */
+#define SHN_HIPROC 0xff1f /* specific section indexes */
#define SHN_LOOS 0xff20 /* reserved range for operating */
-#define SHN_HIOS 0xff3f /* specific semantics */
+#define SHN_HIOS 0xff3f /* specific semantics */
#define SHN_ABS 0xfff1 /* absolute value */
#define SHN_COMMON 0xfff2 /* common symbol */
#define SHN_XINDEX 0xffff /* Index is an extra table */
#define SHT_LOOS 0x60000000 /* Start OS-specific */
#define SHT_HIOS 0x6fffffff /* End OS-specific */
#define SHT_LOPROC 0x70000000 /* reserved range for processor */
-#define SHT_HIPROC 0x7fffffff /* specific section header types */
+#define SHT_HIPROC 0x7fffffff /* specific section header types */
#define SHT_LOUSER 0x80000000 /* reserved range for application */
-#define SHT_HIUSER 0xffffffff /* specific indexes */
+#define SHT_HIUSER 0xffffffff /* specific indexes */
/* Section names */
-#define ELF_BSS ".bss" /* uninitialized data */
+#define ELF_BSS ".bss" /* uninitialized data */
#define ELF_COMMENT ".comment" /* version control information */
-#define ELF_DATA ".data" /* initialized data */
-#define ELF_DATA1 ".data1" /* initialized data */
-#define ELF_DEBUG ".debug" /* debug */
-#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
-#define ELF_DYNSTR ".dynstr" /* dynamic string table */
-#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
-#define ELF_FINI ".fini" /* termination code */
+#define ELF_DATA ".data" /* initialized data */
+#define ELF_DATA1 ".data1" /* initialized data */
+#define ELF_DEBUG ".debug" /* debug */
+#define ELF_DYNAMIC ".dynamic" /* dynamic linking information */
+#define ELF_DYNSTR ".dynstr" /* dynamic string table */
+#define ELF_DYNSYM ".dynsym" /* dynamic symbol table */
+#define ELF_FINI ".fini" /* termination code */
#define ELF_FINI_ARRAY ".fini_array" /* Array of destructors */
-#define ELF_GOT ".got" /* global offset table */
-#define ELF_HASH ".hash" /* symbol hash table */
-#define ELF_INIT ".init" /* initialization code */
+#define ELF_GOT ".got" /* global offset table */
+#define ELF_HASH ".hash" /* symbol hash table */
+#define ELF_INIT ".init" /* initialization code */
#define ELF_INIT_ARRAY ".init_array" /* Array of constuctors */
#define ELF_INTERP ".interp" /* Pathname of program interpreter */
#define ELF_LINE ".line" /* Symbolic line numnber information */
#define ELF_NOTE ".note" /* Contains note section */
#define ELF_PLT ".plt" /* Procedure linkage table */
#define ELF_PREINIT_ARRAY ".preinit_array" /* Array of pre-constructors */
-#define ELF_REL_DATA ".rel.data" /* relocation data */
-#define ELF_REL_FINI ".rel.fini" /* relocation termination code */
-#define ELF_REL_INIT ".rel.init" /* relocation initialization code */
-#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
-#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
-#define ELF_REL_TEXT ".rel.text" /* relocation code */
-#define ELF_RODATA ".rodata" /* read-only data */
-#define ELF_RODATA1 ".rodata1" /* read-only data */
-#define ELF_SHSTRTAB ".shstrtab" /* section header string table */
-#define ELF_STRTAB ".strtab" /* string table */
-#define ELF_SYMTAB ".symtab" /* symbol table */
+#define ELF_REL_DATA ".rel.data" /* relocation data */
+#define ELF_REL_FINI ".rel.fini" /* relocation termination code */
+#define ELF_REL_INIT ".rel.init" /* relocation initialization code */
+#define ELF_REL_DYN ".rel.dyn" /* relocaltion dynamic link info */
+#define ELF_REL_RODATA ".rel.rodata" /* relocation read-only data */
+#define ELF_REL_TEXT ".rel.text" /* relocation code */
+#define ELF_RODATA ".rodata" /* read-only data */
+#define ELF_RODATA1 ".rodata1" /* read-only data */
+#define ELF_SHSTRTAB ".shstrtab" /* section header string table */
+#define ELF_STRTAB ".strtab" /* string table */
+#define ELF_SYMTAB ".symtab" /* symbol table */
#define ELF_SYMTAB_SHNDX ".symtab_shndx"/* symbol table section index */
#define ELF_TBSS ".tbss" /* thread local uninit data */
#define ELF_TDATA ".tdata" /* thread local init data */
#define ELF_TDATA1 ".tdata1" /* thread local init data */
-#define ELF_TEXT ".text" /* code */
+#define ELF_TEXT ".text" /* code */
/* Section Attribute Flags - sh_flags */
#define SHF_WRITE 0x1 /* Writable */
#define SHF_TLS 0x400 /* Thread local storage */
#define SHF_MASKOS 0x0ff00000 /* OS specific */
#define SHF_MASKPROC 0xf0000000 /* reserved bits for processor */
- /* specific section attributes */
+ /* specific section attributes */
/* Section Group Flags */
#define GRP_COMDAT 0x1 /* COMDAT group */
#define GRP_MASKPROC 0xf0000000 /* Mask processor specific flags */
/* Symbol Table Entry */
-typedef struct elf32_sym {
+typedef struct {
Elf32_Word st_name; /* name - index into string table */
Elf32_Addr st_value; /* symbol value */
Elf32_Word st_size; /* symbol size */
#define STB_WEAK 2 /* like global - lower precedence */
#define STB_NUM 3 /* number of symbol bindings */
#define STB_LOOS 10 /* reserved range for operating */
-#define STB_HIOS 12 /* system specific symbol bindings */
+#define STB_HIOS 12 /* system specific symbol bindings */
#define STB_LOPROC 13 /* reserved range for processor */
-#define STB_HIPROC 15 /* specific symbol bindings */
+#define STB_HIPROC 15 /* specific symbol bindings */
/* Symbol type - ELF32_ST_TYPE - st_info */
#define STT_NOTYPE 0 /* not specified */
#define STT_NUM 5 /* number of symbol types */
#define STT_TLS 6 /* Thread local storage symbol */
#define STT_LOOS 10 /* reserved range for operating */
-#define STT_HIOS 12 /* system specific symbol types */
+#define STT_HIOS 12 /* system specific symbol types */
#define STT_LOPROC 13 /* reserved range for processor */
-#define STT_HIPROC 15 /* specific symbol types */
+#define STT_HIPROC 15 /* specific symbol types */
/* Symbol visibility - ELF32_ST_VISIBILITY - st_other */
#define STV_DEFAULT 0 /* Normal visibility rules */
#define STV_HIDDEN 2 /* Symbol unavailable in other mods */
#define STV_PROTECTED 3 /* Not preemptible, not exported */
-
/* Relocation entry with implicit addend */
-typedef struct
-{
+typedef struct {
Elf32_Addr r_offset; /* offset of relocation */
Elf32_Word r_info; /* symbol table index and type */
} Elf32_Rel;
/* Relocation entry with explicit addend */
-typedef struct
-{
+typedef struct {
Elf32_Addr r_offset; /* offset of relocation */
Elf32_Word r_info; /* symbol table index and type */
Elf32_Sword r_addend;
} Elf64_Rel;
typedef struct {
- 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_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;
/* Extract relocation info - r_info */
Elf32_Word p_type; /* segment type */
Elf32_Off p_offset; /* segment offset */
Elf32_Addr p_vaddr; /* virtual address of segment */
- Elf32_Addr p_paddr; /* physical address - ignored? */
- Elf32_Word p_filesz; /* number of bytes in file for seg. */
- Elf32_Word p_memsz; /* number of bytes in mem. for seg. */
+ Elf32_Addr p_paddr; /* physical address of segment */
+ Elf32_Word p_filesz; /* number of bytes in file for seg */
+ Elf32_Word p_memsz; /* number of bytes in mem. for seg */
Elf32_Word p_flags; /* flags */
Elf32_Word p_align; /* memory alignment */
} Elf32_Phdr;
#define PT_TLS 7 /* Thread local storage template */
#define PT_NUM 8 /* Number of segment types */
#define PT_LOOS 0x60000000 /* reserved range for operating */
-#define PT_HIOS 0x6fffffff /* system specific segment types */
+#define PT_HIOS 0x6fffffff /* system specific segment types */
#define PT_LOPROC 0x70000000 /* reserved range for processor */
-#define PT_HIPROC 0x7fffffff /* specific segment types */
+#define PT_HIPROC 0x7fffffff /* specific segment types */
/* Segment flags - p_flags */
#define PF_X 0x1 /* Executable */
#define PF_R 0x4 /* Readable */
#define PF_MASKOS 0x0ff00000 /* OS specific segment flags */
#define PF_MASKPROC 0xf0000000 /* reserved bits for processor */
- /* specific segment flags */
+ /* specific segment flags */
/* Dynamic structure */
-typedef struct
-{
+typedef struct {
Elf32_Sword d_tag; /* controls meaning of d_val */
- union
- {
+ union {
Elf32_Word d_val; /* Multiple meanings - see d_tag */
Elf32_Addr d_ptr; /* program virtual address */
} d_un;
#define DT_RELAENT 9 /* size of relocation entry */
#define DT_STRSZ 10 /* size of string table */
#define DT_SYMENT 11 /* size of symbol table entry */
-#define DT_INIT 12 /* address of initialization func. */
+#define DT_INIT 12 /* address of initialization func */
#define DT_FINI 13 /* address of termination function */
#define DT_SONAME 14 /* string table offset of shared obj */
#define DT_RPATH 15 /* string table offset of library
search path */
-#define DT_SYMBOLIC 16 /* start sym search in shared obj. */
+#define DT_SYMBOLIC 16 /* start sym search in shared obj */
#define DT_REL 17 /* address of rel. tbl. w addends */
#define DT_RELSZ 18 /* size of DT_REL relocation table */
#define DT_RELENT 19 /* size of DT_REL relocation entry */
#define DT_ENCODING 32 /* Start of encoded range */
#define DT_PREINIT_ARRAY 32 /* Array with addresses of preinit fct*/
#define DT_PREINIT_ARRAYSZ 33 /* size in bytes of DT_PREINIT_ARRAY */
-#define DT_NUM 34 /* Number used. */
+#define DT_NUM 34 /* Number used */
#define DT_LOOS 0x60000000 /* reserved range for OS */
-#define DT_HIOS 0x6fffffff /* specific dynamic array tags */
+#define DT_HIOS 0x6fffffff /* specific dynamic array tags */
#define DT_LOPROC 0x70000000 /* reserved range for processor */
-#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
+#define DT_HIPROC 0x7fffffff /* specific dynamic array tags */
/* Dynamic Tag Flags - d_un.d_val */
#define DF_ORIGIN 0x01 /* Object may use DF_ORIGIN */
* but we'll put them in for simplicity.
*/
-/* Values for Elf32/64_Ehdr.e_flags. */
-#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
+/* Values for Elf32/64_Ehdr.e_flags */
+#define EF_PPC_EMB 0x80000000 /* PowerPC embedded flag */
/* Cygnus local bits below */
-#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
-#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
+#define EF_PPC_RELOCATABLE 0x00010000 /* PowerPC -mrelocatable flag*/
+#define EF_PPC_RELOCATABLE_LIB 0x00008000 /* PowerPC -mrelocatable-lib
flag */
/* PowerPC relocations defined by the ABIs */
-#define R_PPC_NONE 0
-#define R_PPC_ADDR32 1 /* 32bit absolute address */
-#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored. */
-#define R_PPC_ADDR16 3 /* 16bit absolute address */
-#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
-#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
-#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
-#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
-#define R_PPC_ADDR14_BRTAKEN 8
-#define R_PPC_ADDR14_BRNTAKEN 9
-#define R_PPC_REL24 10 /* PC relative 26 bit */
-#define R_PPC_REL14 11 /* PC relative 16 bit */
-#define R_PPC_REL14_BRTAKEN 12
-#define R_PPC_REL14_BRNTAKEN 13
-#define R_PPC_GOT16 14
-#define R_PPC_GOT16_LO 15
-#define R_PPC_GOT16_HI 16
-#define R_PPC_GOT16_HA 17
-#define R_PPC_PLTREL24 18
-#define R_PPC_COPY 19
-#define R_PPC_GLOB_DAT 20
-#define R_PPC_JMP_SLOT 21
-#define R_PPC_RELATIVE 22
-#define R_PPC_LOCAL24PC 23
-#define R_PPC_UADDR32 24
-#define R_PPC_UADDR16 25
-#define R_PPC_REL32 26
-#define R_PPC_PLT32 27
-#define R_PPC_PLTREL32 28
-#define R_PPC_PLT16_LO 29
-#define R_PPC_PLT16_HI 30
-#define R_PPC_PLT16_HA 31
-#define R_PPC_SDAREL16 32
-#define R_PPC_SECTOFF 33
-#define R_PPC_SECTOFF_LO 34
-#define R_PPC_SECTOFF_HI 35
-#define R_PPC_SECTOFF_HA 36
-/* Keep this the last entry. */
-#define R_PPC_NUM 37
-
-/* The remaining relocs are from the Embedded ELF ABI, and are not
- in the SVR4 ELF ABI. */
-#define R_PPC_EMB_NADDR32 101
-#define R_PPC_EMB_NADDR16 102
-#define R_PPC_EMB_NADDR16_LO 103
-#define R_PPC_EMB_NADDR16_HI 104
-#define R_PPC_EMB_NADDR16_HA 105
-#define R_PPC_EMB_SDAI16 106
-#define R_PPC_EMB_SDA2I16 107
-#define R_PPC_EMB_SDA2REL 108
-#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
-#define R_PPC_EMB_MRKREF 110
-#define R_PPC_EMB_RELSEC16 111
-#define R_PPC_EMB_RELST_LO 112
-#define R_PPC_EMB_RELST_HI 113
-#define R_PPC_EMB_RELST_HA 114
-#define R_PPC_EMB_BIT_FLD 115
-#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
-
-/* Diab tool relocations. */
-#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
-#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
-#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
-#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
-#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
-#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
-
-/* This is a phony reloc to handle any old fashioned TOC16 references
- that may still be in object files. */
-#define R_PPC_TOC16 255
+#define R_PPC_NONE 0
+#define R_PPC_ADDR32 1 /* 32bit absolute address */
+#define R_PPC_ADDR24 2 /* 26bit address, 2 bits ignored */
+#define R_PPC_ADDR16 3 /* 16bit absolute address */
+#define R_PPC_ADDR16_LO 4 /* lower 16bit of absolute address */
+#define R_PPC_ADDR16_HI 5 /* high 16bit of absolute address */
+#define R_PPC_ADDR16_HA 6 /* adjusted high 16bit */
+#define R_PPC_ADDR14 7 /* 16bit address, 2 bits ignored */
+#define R_PPC_ADDR14_BRTAKEN 8
+#define R_PPC_ADDR14_BRNTAKEN 9
+#define R_PPC_REL24 10 /* PC relative 26 bit */
+#define R_PPC_REL14 11 /* PC relative 16 bit */
+#define R_PPC_REL14_BRTAKEN 12
+#define R_PPC_REL14_BRNTAKEN 13
+#define R_PPC_GOT16 14
+#define R_PPC_GOT16_LO 15
+#define R_PPC_GOT16_HI 16
+#define R_PPC_GOT16_HA 17
+#define R_PPC_PLTREL24 18
+#define R_PPC_COPY 19
+#define R_PPC_GLOB_DAT 20
+#define R_PPC_JMP_SLOT 21
+#define R_PPC_RELATIVE 22
+#define R_PPC_LOCAL24PC 23
+#define R_PPC_UADDR32 24
+#define R_PPC_UADDR16 25
+#define R_PPC_REL32 26
+#define R_PPC_PLT32 27
+#define R_PPC_PLTREL32 28
+#define R_PPC_PLT16_LO 29
+#define R_PPC_PLT16_HI 30
+#define R_PPC_PLT16_HA 31
+#define R_PPC_SDAREL16 32
+#define R_PPC_SECTOFF 33
+#define R_PPC_SECTOFF_LO 34
+#define R_PPC_SECTOFF_HI 35
+#define R_PPC_SECTOFF_HA 36
+/* Keep this the last entry */
+#define R_PPC_NUM 37
+
+/*
+ * The remaining relocs are from the Embedded ELF ABI, and are not
+ * in the SVR4 ELF ABI.
+ */
+#define R_PPC_EMB_NADDR32 101
+#define R_PPC_EMB_NADDR16 102
+#define R_PPC_EMB_NADDR16_LO 103
+#define R_PPC_EMB_NADDR16_HI 104
+#define R_PPC_EMB_NADDR16_HA 105
+#define R_PPC_EMB_SDAI16 106
+#define R_PPC_EMB_SDA2I16 107
+#define R_PPC_EMB_SDA2REL 108
+#define R_PPC_EMB_SDA21 109 /* 16 bit offset in SDA */
+#define R_PPC_EMB_MRKREF 110
+#define R_PPC_EMB_RELSEC16 111
+#define R_PPC_EMB_RELST_LO 112
+#define R_PPC_EMB_RELST_HI 113
+#define R_PPC_EMB_RELST_HA 114
+#define R_PPC_EMB_BIT_FLD 115
+#define R_PPC_EMB_RELSDA 116 /* 16 bit relative offset in SDA */
+
+/* Diab tool relocations */
+#define R_PPC_DIAB_SDA21_LO 180 /* like EMB_SDA21, but lower 16 bit */
+#define R_PPC_DIAB_SDA21_HI 181 /* like EMB_SDA21, but high 16 bit */
+#define R_PPC_DIAB_SDA21_HA 182 /* like EMB_SDA21, adjusted high 16 */
+#define R_PPC_DIAB_RELSDA_LO 183 /* like EMB_RELSDA, but lower 16 bit */
+#define R_PPC_DIAB_RELSDA_HI 184 /* like EMB_RELSDA, but high 16 bit */
+#define R_PPC_DIAB_RELSDA_HA 185 /* like EMB_RELSDA, adjusted high 16 */
+
+/*
+ * This is a phony reloc to handle any old fashioned TOC16 references
+ * that may still be in object files.
+ */
+#define R_PPC_TOC16 255
/* ARM relocs */
#define R_ARM_NONE 0 /* No reloc */
#define R_ARM_RELATIVE 23 /* Adjust by program base */
/* AArch64 relocs */
-#define R_AARCH64_NONE 0 /* No relocation. */
-#define R_AARCH64_RELATIVE 1027 /* Adjust by program base. */
+#define R_AARCH64_NONE 0 /* No relocation */
+#define R_AARCH64_RELATIVE 1027 /* Adjust by program base */
/* RISC-V relocations */
#define R_RISCV_32 1
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