137 lines
3.8 KiB
C
137 lines
3.8 KiB
C
/* output_aout.h header file for a.out objects */
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/* (c) in 2008 by Frank Wille */
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#include "stabs.h"
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/* a.out header */
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struct aout_hdr {
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uint8_t a_midmag[4];
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uint8_t a_text[4];
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uint8_t a_data[4];
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uint8_t a_bss[4];
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uint8_t a_syms[4];
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uint8_t a_entry[4];
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uint8_t a_trsize[4];
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uint8_t a_drsize[4];
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};
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/* a_magic */
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#define OMAGIC 0407 /* old impure format */
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#define NMAGIC 0410 /* read-only text */
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#define ZMAGIC 0413 /* demand load format */
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#define QMAGIC 0314 /* not supported */
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/* a_mid - machine id */
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#define MID_SUN010 1 /* sun 68010/68020 binary */
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#define MID_SUN020 2 /* sun 68020-only binary */
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#define MID_PC386 100 /* 386 PC binary. (so quoth BFD) */
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#define MID_HP200 200 /* hp200 (68010) BSD binary */
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#define MID_I386 134 /* i386 BSD binary */
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#define MID_M68K 135 /* m68k BSD binary with 8K page sizes */
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#define MID_M68K4K 136 /* m68k BSD binary with 4K page sizes */
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#define MID_NS32532 137 /* ns32532 */
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#define MID_SPARC 138 /* sparc */
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#define MID_PMAX 139 /* pmax */
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#define MID_VAX1K 140 /* vax 1K page size binaries */
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#define MID_ALPHA 141 /* Alpha BSD binary */
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#define MID_MIPS 142 /* big-endian MIPS */
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#define MID_ARM6 143 /* ARM6 */
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#define MID_SH3 145 /* SH3 */
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#define MID_POWERPC 149 /* big-endian PowerPC */
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#define MID_VAX 150 /* vax */
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#define MID_SPARC64 151 /* LP64 sparc */
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#define MID_HP300 300 /* hp300 (68020+68881) BSD binary */
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#define MID_HPUX 0x20C /* hp200/300 HP-UX binary */
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#define MID_HPUX800 0x20B /* hp800 HP-UX binary */
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/* a_flags */
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#define EX_DYNAMIC 0x20
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#define EX_PIC 0x10
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#define EX_DPMASK 0x30
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/* a_midmag macros */
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#define SETMIDMAG(a,mag,mid,flag) setval(1,(a)->a_midmag,4, \
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((flag)&0x3f)<<26|((mid)&0x3ff)<<16|((mag)&0xffff))
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/* Relocation info structures */
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struct relocation_info {
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uint8_t r_address[4];
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uint8_t r_info[4];
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};
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#define RELB_symbolnum 0 /* ordinal number of add symbol */
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#define RELS_symbolnum 24
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#define RELB_reloc 24 /* the whole reloc field */
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#define RELS_reloc 8
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/* standard relocs: M68k, x86, ... */
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#define RSTDB_pcrel 24 /* 1 if value should be pc-relative */
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#define RSTDS_pcrel 1
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#define RSTDB_length 25 /* log base 2 of value's width */
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#define RSTDS_length 2
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#define RSTDB_extern 27 /* 1 if need to add symbol to value */
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#define RSTDS_extern 1
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#define RSTDB_baserel 28 /* linkage table relative */
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#define RSTDS_baserel 1
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#define RSTDB_jmptable 29 /* relocate to jump table */
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#define RSTDS_jmptable 1
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#define RSTDB_relative 30 /* load address relative */
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#define RSTDS_relative 1
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#define RSTDB_copy 31 /* run time copy */
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#define RSTDS_copy 1
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/* vasm specific - used to generate a.out files */
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#define STRHTABSIZE 0x10000
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#define SYMHTABSIZE 0x10000
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#define _TEXT 0
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#define _DATA 1
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#define _BSS 2
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struct StrTabNode {
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struct node n;
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struct StrTabNode *hashchain;
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char *str;
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uint32_t offset;
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};
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struct StrTabList {
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struct list l;
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struct StrTabNode **hashtab;
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uint32_t nextoffset;
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};
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struct SymbolNode {
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struct node n;
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struct SymbolNode *hashchain;
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char *name;
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struct nlist32 s;
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uint32_t index;
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};
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struct SymTabList {
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struct list l;
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struct SymbolNode **hashtab;
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uint32_t nextindex;
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};
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struct RelocNode {
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struct node n;
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struct relocation_info r;
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};
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#if defined(VASM_CPU_M68K)
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/* MID defined in cpus/m68k/cpu.h */
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#elif defined(VASM_CPU_PPC)
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#define MID MID_POWERPC
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#elif defined(VASM_CPU_ARM)
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#define MID MID_ARM6
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#elif defined(VASM_CPU_X86)
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#define MID MID_PC386
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#elif defined(VASM_CPU_JAGRISC)
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#define MID (0)
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#endif
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