| /* Basic coff information for the PowerPC |
| * |
| * Based on coff/rs6000.h, coff/i386.h and others. |
| * |
| * Initial release: Kim Knuttila (krk@cygnus.com) |
| */ |
| |
| /********************** 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 */ |
| }; |
| |
| #define FILHDR struct external_filehdr |
| #define FILHSZ 20 |
| |
| /* 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) |
| |
| /* extra NT defines */ |
| #define PPCMAGIC 0760 /* peeked on aa PowerPC Windows NT box */ |
| #define DOSMAGIC 0x5a4d /* from arm.h, i386.h */ |
| #define NT_SIGNATURE 0x00004550 /* from arm.h, i386.h */ |
| |
| /* from winnt.h */ |
| #define IMAGE_NT_OPTIONAL_HDR_MAGIC 0x10b |
| |
| #define PPCBADMAG(x) ((x).f_magic != PPCMAGIC) |
| |
| /********************** 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 |
| |
| /********************** 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 */ |
| |
| /* Allow the file name length to be overridden in the including file */ |
| #ifndef E_FILNMLEN |
| #define E_FILNMLEN 14 |
| #endif |
| |
| #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 SYMENT struct external_syment |
| #define SYMESZ 18 |
| |
| #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; |
| }; |
| |
| #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 |
| |