Changes in kernel/generic/include/lib/elf.h [c0699467:a8bb38c] in mainline

File:

• kernel/generic/include/lib/elf.h (modified) (1 diff)

kernel/generic/include/lib/elf.h

@@ -36 +36 @@
 #define KERN_ELF_H_
 
+#include <arch/elf.h>
 #include <typedefs.h>
-#include <abi/elf.h>
-#include <arch/elf.h>
+
+/**
+ * current ELF version
+ */
+#define EV_CURRENT  1
+
+/**
+ * ELF types
+ */
+#define ET_NONE    0       /* No type */
+#define ET_REL     1       /* Relocatable file */
+#define ET_EXEC    2       /* Executable */
+#define ET_DYN     3       /* Shared object */
+#define ET_CORE    4       /* Core */
+#define ET_LOPROC  0xff00  /* Processor specific */
+#define ET_HIPROC  0xffff  /* Processor specific */
+
+/**
+ * ELF machine types
+ */
+#define EM_NO           0   /* No machine */
+#define EM_SPARC        2   /* SPARC */
+#define EM_386          3   /* i386 */
+#define EM_MIPS         8   /* MIPS RS3000 */
+#define EM_MIPS_RS3_LE  10  /* MIPS RS3000 LE */
+#define EM_PPC          20  /* PPC32 */
+#define EM_PPC64        21  /* PPC64 */
+#define EM_ARM          40  /* ARM */
+#define EM_SPARCV9      43  /* SPARC64 */
+#define EM_IA_64        50  /* IA-64 */
+#define EM_X86_64       62  /* AMD64/EMT64 */
+
+/**
+ * ELF identification indexes
+ */
+#define EI_MAG0        0
+#define EI_MAG1        1
+#define EI_MAG2        2
+#define EI_MAG3        3
+#define EI_CLASS       4   /* File class */
+#define EI_DATA        5   /* Data encoding */
+#define EI_VERSION     6   /* File version */
+#define EI_OSABI       7
+#define EI_ABIVERSION  8
+#define EI_PAD         9   /* Start of padding bytes */
+#define EI_NIDENT      16  /* ELF identification table size */
+
+/**
+ * ELF magic number
+ */
+#define ELFMAG0  0x7f
+#define ELFMAG1  'E'
+#define ELFMAG2  'L'
+#define ELFMAG3  'F'
+
+/**
+ * ELF file classes
+ */
+#define ELFCLASSNONE  0
+#define ELFCLASS32    1
+#define ELFCLASS64    2
+
+/**
+ * ELF data encoding types
+ */
+#define ELFDATANONE  0
+#define ELFDATA2LSB  1  /* Least significant byte first (little endian) */
+#define ELFDATA2MSB  2  /* Most signigicant byte first (big endian) */
+
+/**
+ * ELF section types
+ */
+#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_LOOS      0x60000000
+#define SHT_HIOS      0x6fffffff
+#define SHT_LOPROC    0x70000000
+#define SHT_HIPROC    0x7fffffff
+#define SHT_LOUSER    0x80000000
+#define SHT_HIUSER    0xffffffff
+
+/**
+ * ELF section flags
+ */
+#define SHF_WRITE      0x1
+#define SHF_ALLOC      0x2
+#define SHF_EXECINSTR  0x4
+#define SHF_TLS        0x400
+#define SHF_MASKPROC   0xf0000000
+
+/** Macros for decomposing elf_symbol.st_info into binging and type */
+#define ELF_ST_BIND(i)     ((i) >> 4)
+#define ELF_ST_TYPE(i)     ((i) & 0x0f)
+#define ELF_ST_INFO(b, t)  (((b) << 4) + ((t) & 0x0f))
+
+/**
+ * Symbol binding
+ */
+#define STB_LOCAL   0
+#define STB_GLOBAL  1
+#define STB_WEAK    2
+#define STB_LOPROC  13
+#define STB_HIPROC  15
+
+/**
+ * Symbol types
+ */
+#define STT_NOTYPE   0
+#define STT_OBJECT   1
+#define STT_FUNC     2
+#define STT_SECTION  3
+#define STT_FILE     4
+#define STT_LOPROC   13
+#define STT_HIPROC   15
+
+/**
+ * Program segment types
+ */
+#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_LOPROC   0x70000000
+#define PT_HIPROC   0x7fffffff
+
+/**
+ * Program segment attributes.
+ */
+#define PF_X  1
+#define PF_W  2
+#define PF_R  4
+
+/**
+ * ELF data types
+ *
+ * These types are found to be identical in both 32-bit and 64-bit
+ * ELF object file specifications. They are the only types used
+ * in ELF header.
+ */
+typedef uint64_t elf_xword;
+typedef int64_t elf_sxword;
+typedef uint32_t elf_word;
+typedef int32_t elf_sword;
+typedef uint16_t elf_half;
+
+/**
+ * 32-bit ELF data types.
+ *
+ * These types are specific for 32-bit format.
+ */
+typedef uint32_t elf32_addr;
+typedef uint32_t elf32_off;
+
+/**
+ * 64-bit ELF data types.
+ *
+ * These types are specific for 64-bit format.
+ */
+typedef uint64_t elf64_addr;
+typedef uint64_t elf64_off;
+
+/** ELF header */
+struct elf32_header {
+        uint8_t e_ident[EI_NIDENT];
+        elf_half e_type;
+        elf_half e_machine;
+        elf_word e_version;
+        elf32_addr e_entry;
+        elf32_off e_phoff;
+        elf32_off e_shoff;
+        elf_word e_flags;
+        elf_half e_ehsize;
+        elf_half e_phentsize;
+        elf_half e_phnum;
+        elf_half e_shentsize;
+        elf_half e_shnum;
+        elf_half e_shstrndx;
+};
+
+struct elf64_header {
+        uint8_t e_ident[EI_NIDENT];
+        elf_half e_type;
+        elf_half e_machine;
+        elf_word e_version;
+        elf64_addr e_entry;
+        elf64_off e_phoff;
+        elf64_off e_shoff;
+        elf_word e_flags;
+        elf_half e_ehsize;
+        elf_half e_phentsize;
+        elf_half e_phnum;
+        elf_half e_shentsize;
+        elf_half e_shnum;
+        elf_half e_shstrndx;
+};
+
+/**
+ * ELF segment header.
+ * Segments headers are also known as program headers.
+ */
+struct elf32_segment_header {
+        elf_word p_type;
+        elf32_off p_offset;
+        elf32_addr p_vaddr;
+        elf32_addr p_paddr;
+        elf_word p_filesz;
+        elf_word p_memsz;
+        elf_word p_flags;
+        elf_word p_align;
+};
+
+struct elf64_segment_header {
+        elf_word p_type;
+        elf_word p_flags;
+        elf64_off p_offset;
+        elf64_addr p_vaddr;
+        elf64_addr p_paddr;
+        elf_xword p_filesz;
+        elf_xword p_memsz;
+        elf_xword p_align;
+};
+
+/**
+ * ELF section header
+ */
+struct elf32_section_header {
+        elf_word sh_name;
+        elf_word sh_type;
+        elf_word sh_flags;
+        elf32_addr sh_addr;
+        elf32_off sh_offset;
+        elf_word sh_size;
+        elf_word sh_link;
+        elf_word sh_info;
+        elf_word sh_addralign;
+        elf_word sh_entsize;
+};
+
+struct elf64_section_header {
+        elf_word sh_name;
+        elf_word sh_type;
+        elf_xword sh_flags;
+        elf64_addr sh_addr;
+        elf64_off sh_offset;
+        elf_xword sh_size;
+        elf_word sh_link;
+        elf_word sh_info;
+        elf_xword sh_addralign;
+        elf_xword sh_entsize;
+};
+
+/**
+ * ELF symbol table entry
+ */
+struct elf32_symbol {
+        elf_word st_name;
+        elf32_addr st_value;
+        elf_word st_size;
+        uint8_t st_info;
+        uint8_t st_other;
+        elf_half st_shndx;
+};
+
+struct elf64_symbol {
+        elf_word st_name;
+        uint8_t st_info;
+        uint8_t st_other;
+        elf_half st_shndx;
+        elf64_addr st_value;
+        elf_xword st_size;
+};
+
+/*
+ * ELF note segment entry
+ */
+struct elf32_note {
+        elf_word namesz;
+        elf_word descsz;
+        elf_word type;
+};
+
+/*
+ * NOTE: namesz, descsz and type should be 64-bits wide (elf_xword)
+ * per the 64-bit ELF spec. The Linux kernel however screws up and
+ * defines them as Elf64_Word, which is 32-bits wide(!). We are trying
+ * to make our core files compatible with Linux GDB target so we copy
+ * the blunder here.
+ */
+struct elf64_note {
+        elf_word namesz;
+        elf_word descsz;
+        elf_word type;
+};
+
+#ifdef __32_BITS__
+typedef struct elf32_header elf_header_t;
+typedef struct elf32_segment_header elf_segment_header_t;
+typedef struct elf32_section_header elf_section_header_t;
+typedef struct elf32_symbol elf_symbol_t;
+typedef struct elf32_note elf_note_t;
+#endif
+
+#ifdef __64_BITS__
+typedef struct elf64_header elf_header_t;
+typedef struct elf64_segment_header elf_segment_header_t;
+typedef struct elf64_section_header elf_section_header_t;
+typedef struct elf64_symbol elf_symbol_t;
+typedef struct elf64_note elf_note_t;
+#endif
 
 /** Interpreter string used to recognize the program loader */