NetBSD/sys/arch/x68k/stand/aout2hux/aout68k.h

165 lines
4.6 KiB
C

/*
* m68k a.out / ELF file structure definitions
*
* written by Yasha (ITOH Yasufumi)
* public domain
*
* $NetBSD: aout68k.h,v 1.3 1999/11/19 03:54:08 itohy Exp $
*/
/*
* NetBSD/m68k a.out format (OMAGIC, NMAGIC)
*
* ----------------------------
* | file header (32 bytes) |
* |--------------------------|
* | text |
* |--------------------------|
* | data |
* |--------------------------|
* | text relocation table |
* |--------------------------|
* | data relocation table |
* |--------------------------|
* | symbol table |
* |--------------------------|
* | string table |
* ----------------------------
*
* OMAGIC: text and data segments are loaded contiguous
* NMAGIC: data segment is loaded at the next page of the text
*/
struct aout_m68k {
be_uint32_t a_magic; /* encoded magic number */
be_uint32_t a_text; /* size of text section */
be_uint32_t a_data; /* size of data section */
be_uint32_t a_bss; /* size of bss */
be_uint32_t a_syms; /* size of symbol table */
be_uint32_t a_entry; /* entry point address */
be_uint32_t a_trsize; /* size of text relocation */
be_uint32_t a_drsize; /* size of data relocation */
};
#define AOUT_GET_MAGIC(e) (((e)->a_magic.val[2]<<8) | (e)->a_magic.val[3])
#define AOUT_OMAGIC 0407
#define AOUT_NMAGIC 0410
#define AOUT_ZMAGIC 0413 /* demand paging --- header is in the text */
#define AOUT_GET_FLAGS(e) ((e)->a_magic.val[0] >> 2)
#define AOUT_FLAG_PIC 0x10
#define AOUT_FLAG_DYNAMIC 0x20
/* machine ID */
#define AOUT_GET_MID(e) ((((e)->a_magic.val[0] & 0x03) << 8) | \
(e)->a_magic.val[1])
#define AOUT_MID_M68K 135 /* m68k BSD binary, 8KB page */
#define AOUT_MID_M68K4K 136 /* m68k BSD binary, 4KB page */
#define AOUT_PAGESIZE(e) (AOUT_GET_MAGIC(e) == AOUT_OMAGIC ? 1 : \
AOUT_GET_MID(e) == AOUT_MID_M68K ? 8192 : 4096)
/*
* m68k ELF executable format
*
* --------------------------------------
* | ELF header (52 bytes) |
* |------------------------------------|
* | Program header (32bytes x 1 or 2) |
* |------------------------------------|
* | section 1 (text) |
* |------------------------------------|
* | section 2 (data) |
* |------------------------------------|
* | ... |
* |------------------------------------|
* | section header table (optional) |
* --------------------------------------
*/
/*
* ELF header for m68k
*/
struct elf_m68k_hdr {
#define EI_MAG0 0
#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 EL_NIDENT 16
u_int8_t e_ident[EL_NIDENT]; /* ELF magic */
#define ELFMAG0 0x7f
#define ELFMAG1 0x45 /* 'E' */
#define ELFMAG2 0x4c /* 'L' */
#define ELFMAG3 0x46 /* 'F' */
#define ELFCLASS32 1 /* 32bit */
#define ELFDATA2MSB 2 /* big endian */
be_uint16_t e_type; /* type of this file */
#define ET_EXEC 2
be_uint16_t e_machine; /* architecture id */
#define EM_68K 4
be_uint32_t e_version;
#define EV_CURRENT 1
be_uint32_t e_entry; /* entry address */
be_uint32_t e_phoff; /* program header address */
be_uint32_t e_shoff;
be_uint32_t e_flags;
be_uint16_t e_ehsize;
be_uint16_t e_phentsize; /* program header entry size */
be_uint16_t e_phnum; /* number of program header entries */
be_uint16_t e_shentsize; /* section header entry size */
be_uint16_t e_shnum; /* number of section header entries */
be_uint16_t e_shstrndx;
};
#define SIZE_ELF68K_HDR (sizeof(struct elf_m68k_hdr))
/*
* Section header for m68k ELF
*/
struct elf_m68k_shdr {
be_uint32_t sh_name;
be_uint32_t sh_type;
#define SHT_PROGBITS 1
be_uint32_t sh_flags;
#define SHF_WRITE 1
#define SHF_ALLOC 2
#define SHF_EXECINSTR 4
be_uint32_t sh_addr;
be_uint32_t sh_offset;
be_uint32_t sh_size;
be_uint32_t sh_link;
be_uint32_t sh_info;
be_uint32_t sh_addralign;
be_uint32_t sh_entsize;
};
#define ELF68K_ISDATASEG(sh) \
(get_uint32(&(sh)->sh_type) == SHT_PROGBITS && \
(get_uint32(&(sh)->sh_flags) & \
(SHF_WRITE | SHF_ALLOC | SHF_EXECINSTR)) == \
(SHF_WRITE | SHF_ALLOC)) /* no SHF_EXECINSTR */
#define SIZE_ELF68K_SHDR (sizeof(struct elf_m68k_shdr))
/*
* Program header for m68k ELF
*/
struct elf_m68k_phdr {
be_uint32_t p_type; /* type of segment */
#define PT_LOAD 1
be_uint32_t p_offset; /* file offset */
be_uint32_t p_vaddr; /* virtual address */
be_uint32_t p_paddr; /* physical address (ignored) */
be_uint32_t p_filesz; /* size on file */
be_uint32_t p_memsz; /* size on memory */
be_uint32_t p_flags;
#define PF_R 4
#define PF_W 2
#define PF_X 1
be_uint32_t p_align;
};
#define SIZE_ELF68K_PHDR (sizeof(struct elf_m68k_phdr))