From 252b5132c753830d5fd56823373aed85f2a0db63 Mon Sep 17 00:00:00 2001 From: Richard Henderson Date: Mon, 3 May 1999 07:29:11 +0000 Subject: 19990502 sourceware import --- include/coff/powerpc.h | 199 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 199 insertions(+) create mode 100644 include/coff/powerpc.h (limited to 'include/coff/powerpc.h') diff --git a/include/coff/powerpc.h b/include/coff/powerpc.h new file mode 100644 index 0000000..9552cf9 --- /dev/null +++ b/include/coff/powerpc.h @@ -0,0 +1,199 @@ +/* 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 + -- cgit v1.1