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94b212c29f
This also extends the code to handle 32-bit ELF vmlinux files as well as 64-bit ones. This is sufficient for booting on new-world 32-bit powermacs (i.e. all recent machines). Signed-off-by: Paul Mackerras <paulus@samba.org>
149 lines
3.7 KiB
C
149 lines
3.7 KiB
C
#ifndef _PPC_BOOT_ELF_H_
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#define _PPC_BOOT_ELF_H_
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/* 32-bit ELF base types. */
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typedef unsigned int Elf32_Addr;
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typedef unsigned short Elf32_Half;
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typedef unsigned int Elf32_Off;
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typedef signed int Elf32_Sword;
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typedef unsigned int Elf32_Word;
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/* 64-bit ELF base types. */
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typedef unsigned long long Elf64_Addr;
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typedef unsigned short Elf64_Half;
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typedef signed short Elf64_SHalf;
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typedef unsigned long long Elf64_Off;
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typedef signed int Elf64_Sword;
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typedef unsigned int Elf64_Word;
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typedef unsigned long long Elf64_Xword;
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typedef signed long long Elf64_Sxword;
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/* These constants are for the segment types stored in the image headers */
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#define PT_NULL 0
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#define PT_LOAD 1
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#define PT_DYNAMIC 2
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#define PT_INTERP 3
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#define PT_NOTE 4
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#define PT_SHLIB 5
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#define PT_PHDR 6
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#define PT_TLS 7 /* Thread local storage segment */
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#define PT_LOOS 0x60000000 /* OS-specific */
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#define PT_HIOS 0x6fffffff /* OS-specific */
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#define PT_LOPROC 0x70000000
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#define PT_HIPROC 0x7fffffff
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#define PT_GNU_EH_FRAME 0x6474e550
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#define PT_GNU_STACK (PT_LOOS + 0x474e551)
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/* These constants define the different elf file types */
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#define ET_NONE 0
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#define ET_REL 1
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#define ET_EXEC 2
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#define ET_DYN 3
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#define ET_CORE 4
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#define ET_LOPROC 0xff00
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#define ET_HIPROC 0xffff
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/* These constants define the various ELF target machines */
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#define EM_NONE 0
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#define EM_PPC 20 /* PowerPC */
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#define EM_PPC64 21 /* PowerPC64 */
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#define EI_NIDENT 16
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typedef struct elf32_hdr {
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unsigned char e_ident[EI_NIDENT];
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Elf32_Half e_type;
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Elf32_Half e_machine;
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Elf32_Word e_version;
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Elf32_Addr e_entry; /* Entry point */
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Elf32_Off e_phoff;
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Elf32_Off e_shoff;
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Elf32_Word e_flags;
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Elf32_Half e_ehsize;
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Elf32_Half e_phentsize;
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Elf32_Half e_phnum;
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Elf32_Half e_shentsize;
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Elf32_Half e_shnum;
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Elf32_Half e_shstrndx;
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} Elf32_Ehdr;
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typedef struct elf64_hdr {
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unsigned char e_ident[16]; /* ELF "magic number" */
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Elf64_Half e_type;
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Elf64_Half e_machine;
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Elf64_Word e_version;
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Elf64_Addr e_entry; /* Entry point virtual address */
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Elf64_Off e_phoff; /* Program header table file offset */
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Elf64_Off e_shoff; /* Section header table file offset */
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Elf64_Word e_flags;
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Elf64_Half e_ehsize;
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Elf64_Half e_phentsize;
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Elf64_Half e_phnum;
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Elf64_Half e_shentsize;
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Elf64_Half e_shnum;
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Elf64_Half e_shstrndx;
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} Elf64_Ehdr;
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/* These constants define the permissions on sections in the program
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header, p_flags. */
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#define PF_R 0x4
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#define PF_W 0x2
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#define PF_X 0x1
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typedef struct elf32_phdr {
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Elf32_Word p_type;
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Elf32_Off p_offset;
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Elf32_Addr p_vaddr;
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Elf32_Addr p_paddr;
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Elf32_Word p_filesz;
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Elf32_Word p_memsz;
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Elf32_Word p_flags;
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Elf32_Word p_align;
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} Elf32_Phdr;
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typedef struct elf64_phdr {
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Elf64_Word p_type;
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Elf64_Word p_flags;
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Elf64_Off p_offset; /* Segment file offset */
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Elf64_Addr p_vaddr; /* Segment virtual address */
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Elf64_Addr p_paddr; /* Segment physical address */
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Elf64_Xword p_filesz; /* Segment size in file */
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Elf64_Xword p_memsz; /* Segment size in memory */
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Elf64_Xword p_align; /* Segment alignment, file & memory */
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} Elf64_Phdr;
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#define EI_MAG0 0 /* e_ident[] indexes */
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#define EI_MAG1 1
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#define EI_MAG2 2
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#define EI_MAG3 3
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#define EI_CLASS 4
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#define EI_DATA 5
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#define EI_VERSION 6
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#define EI_OSABI 7
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#define EI_PAD 8
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#define ELFMAG0 0x7f /* EI_MAG */
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#define ELFMAG1 'E'
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#define ELFMAG2 'L'
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#define ELFMAG3 'F'
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#define ELFMAG "\177ELF"
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#define SELFMAG 4
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#define ELFCLASSNONE 0 /* EI_CLASS */
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#define ELFCLASS32 1
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#define ELFCLASS64 2
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#define ELFCLASSNUM 3
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#define ELFDATANONE 0 /* e_ident[EI_DATA] */
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#define ELFDATA2LSB 1
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#define ELFDATA2MSB 2
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#define EV_NONE 0 /* e_version, EI_VERSION */
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#define EV_CURRENT 1
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#define EV_NUM 2
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#define ELFOSABI_NONE 0
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#define ELFOSABI_LINUX 3
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#endif /* _PPC_BOOT_ELF_H_ */
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