coff-i386.h
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上传日期:2008-05-12
资源大小:23136k
文件大小:6k
源码类别:
VxWorks
开发平台:
C/C++
- /* coff-i386.h - Cygwin32 description of PE COFF objects */
- /*
- modification history
- --------------------
- 01a,03mar98,jmb written.
- */
- /*
- * This file from cygwin32-b18, include/coff/i386.h
- * Please update if tools are upgraded to a later version of cygwin32.
- */
- #ifndef __INCcoffi386h
- #define __INCcoffi386h
- #ifdef __cplusplus
- extern "C" {
- #endif
- /*** coff information for Intel 386/486. */
- /********************** FILE HEADER **********************/
- struct external_filehdr {
- char f_magic[2]; /* magic number */
- char f_nscns[2]; /* number of sections */
- char f_timdat[4]; /* time & date stamp */
- char f_symptr[4]; /* file pointer to symtab */
- char f_nsyms[4]; /* number of symtab entries */
- char f_opthdr[2]; /* sizeof(optional hdr) */
- char f_flags[2]; /* flags */
- };
- /* Bits for f_flags:
- * F_RELFLG relocation info stripped from file
- * F_EXEC file is executable (no unresolved external references)
- * F_LNNO line numbers stripped from file
- * F_LSYMS local symbols stripped from file
- * F_AR32WR file has byte ordering of an AR32WR machine (e.g. vax)
- */
- #define F_RELFLG (0x0001)
- #define F_EXEC (0x0002)
- #define F_LNNO (0x0004)
- #define F_LSYMS (0x0008)
- #define I386MAGIC 0x14c
- #define I386PTXMAGIC 0x154
- #define I386AIXMAGIC 0x175
- /* This is Lynx's all-platform magic number for executables. */
- #define LYNXCOFFMAGIC 0415
- #define I386BADMAG(x) (((x).f_magic != I386MAGIC)
- && (x).f_magic != I386AIXMAGIC
- && (x).f_magic != I386PTXMAGIC
- && (x).f_magic != LYNXCOFFMAGIC)
- #define FILHDR struct external_filehdr
- #define FILHSZ 20
- /********************** AOUT "OPTIONAL HEADER" **********************/
- typedef struct
- {
- char magic[2]; /* type of file */
- char vstamp[2]; /* version stamp */
- char tsize[4]; /* text size in bytes, padded to FW bdry*/
- char dsize[4]; /* initialized data " " */
- char bsize[4]; /* uninitialized data " " */
- char entry[4]; /* entry pt. */
- char text_start[4]; /* base of text used for this file */
- char data_start[4]; /* base of data used for this file */
- }
- AOUTHDR;
- #define AOUTSZ 28
- #define AOUTHDRSZ 28
- #define OMAGIC 0404 /* object files, eg as output */
- #define ZMAGIC 0413 /* demand load format, eg normal ld output */
- #define STMAGIC 0401 /* target shlib */
- #define SHMAGIC 0443 /* host shlib */
- /* define some NT default values */
- /* #define NT_IMAGE_BASE 0x400000 moved to internal.h */
- #define NT_SECTION_ALIGNMENT 0x1000
- #define NT_FILE_ALIGNMENT 0x200
- #define NT_DEF_RESERVE 0x100000
- #define NT_DEF_COMMIT 0x1000
- /********************** SECTION HEADER **********************/
- struct external_scnhdr {
- char s_name[8]; /* section name */
- char s_paddr[4]; /* physical address, aliased s_nlib */
- char s_vaddr[4]; /* virtual address */
- char s_size[4]; /* section size */
- char s_scnptr[4]; /* file ptr to raw data for section */
- char s_relptr[4]; /* file ptr to relocation */
- char s_lnnoptr[4]; /* file ptr to line numbers */
- char s_nreloc[2]; /* number of relocation entries */
- char s_nlnno[2]; /* number of line number entries*/
- char s_flags[4]; /* flags */
- };
- #define SCNHDR struct external_scnhdr
- #define SCNHSZ 40
- /*
- * names of "special" sections
- */
- #define _TEXT ".text"
- #define _DATA ".data"
- #define _BSS ".bss"
- #define _COMMENT ".comment"
- #define _LIB ".lib"
- /********************** LINE NUMBERS **********************/
- /* 1 line number entry for every "breakpointable" source line in a section.
- * Line numbers are grouped on a per function basis; first entry in a function
- * grouping will have l_lnno = 0 and in place of physical address will be the
- * symbol table index of the function name.
- */
- struct external_lineno {
- union {
- char l_symndx[4]; /* function name symbol index, iff l_lnno == 0*/
- char l_paddr[4]; /* (physical) address of line number */
- } l_addr;
- char l_lnno[2]; /* line number */
- };
- #define LINENO struct external_lineno
- #define LINESZ 6
- /********************** SYMBOLS **********************/
- #define E_SYMNMLEN 8 /* # characters in a symbol name */
- #define E_FILNMLEN 14 /* # characters in a file name */
- #define E_DIMNUM 4 /* # array dimensions in auxiliary entry */
- struct external_syment
- {
- union {
- char e_name[E_SYMNMLEN];
- struct {
- char e_zeroes[4];
- char e_offset[4];
- } e;
- } e;
- char e_value[4];
- char e_scnum[2];
- char e_type[2];
- char e_sclass[1];
- char e_numaux[1];
- };
- #define N_BTMASK (0xf)
- #define N_TMASK (0x30)
- #define N_BTSHFT (4)
- #define N_TSHIFT (2)
- union external_auxent {
- struct {
- char x_tagndx[4]; /* str, un, or enum tag indx */
- union {
- struct {
- char x_lnno[2]; /* declaration line number */
- char x_size[2]; /* str/union/array size */
- } x_lnsz;
- char x_fsize[4]; /* size of function */
- } x_misc;
- union {
- struct { /* if ISFCN, tag, or .bb */
- char x_lnnoptr[4]; /* ptr to fcn line # */
- char x_endndx[4]; /* entry ndx past block end */
- } x_fcn;
- struct { /* if ISARY, up to 4 dimen. */
- char x_dimen[E_DIMNUM][2];
- } x_ary;
- } x_fcnary;
- char x_tvndx[2]; /* tv index */
- } x_sym;
- union {
- char x_fname[E_FILNMLEN];
- struct {
- char x_zeroes[4];
- char x_offset[4];
- } x_n;
- } x_file;
- struct {
- char x_scnlen[4]; /* section length */
- char x_nreloc[2]; /* # relocation entries */
- char x_nlinno[2]; /* # line numbers */
- char x_checksum[4]; /* section COMDAT checksum */
- char x_associated[2]; /* COMDAT associated section index */
- char x_comdat[1]; /* COMDAT selection number */
- } x_scn;
- struct {
- char x_tvfill[4]; /* tv fill value */
- char x_tvlen[2]; /* length of .tv */
- char x_tvran[2][2]; /* tv range */
- } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
- };
- #define SYMENT struct external_syment
- #define SYMESZ 18
- #define AUXENT union external_auxent
- #define AUXESZ 18
- # define _ETEXT "etext"
- /********************** RELOCATION DIRECTIVES **********************/
- struct external_reloc {
- char r_vaddr[4];
- char r_symndx[4];
- char r_type[2];
- };
- #define RELOC struct external_reloc
- #define RELSZ 10
- #ifdef __cplusplus
- }
- #endif
- #endif /* __INCcoffi386h */