diff options
Diffstat (limited to 'binutils-2.25/include/coff/i960.h')
| -rw-r--r-- | binutils-2.25/include/coff/i960.h | 320 |
1 files changed, 320 insertions, 0 deletions
diff --git a/binutils-2.25/include/coff/i960.h b/binutils-2.25/include/coff/i960.h new file mode 100644 index 00000000..2bf42adc --- /dev/null +++ b/binutils-2.25/include/coff/i960.h @@ -0,0 +1,320 @@ +/* coff information for 80960. Origins: Intel corp, natch. + + Copyright 2001, 2010 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + +/* NOTE: Tagentries (cf TAGBITS) are no longer used by the 960 */ + +/********************** 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 OMAGIC (0407) /* old impure format. data immediately + follows text. both sections are rw. */ +#define NMAGIC (0410) /* split i&d, read-only text */ + +/* +* Intel 80960 (I960) processor flags. +* F_I960TYPE == mask for processor type field. +*/ + +#define F_I960TYPE (0xf000) +#define F_I960CORE (0x1000) +#define F_I960KB (0x2000) +#define F_I960SB (0x2000) +#define F_I960MC (0x3000) +#define F_I960XA (0x4000) +#define F_I960CA (0x5000) +#define F_I960KA (0x6000) +#define F_I960SA (0x6000) +#define F_I960JX (0x7000) +#define F_I960HX (0x8000) + + +/** i80960 Magic Numbers +*/ + +#define I960ROMAGIC (0x160) /* read-only text segments */ +#define I960RWMAGIC (0x161) /* read-write text segments */ + +#define I960BADMAG(x) (((x).f_magic!=I960ROMAGIC) && ((x).f_magic!=I960RWMAGIC)) + +#define FILHDR struct external_filehdr +#define FILHSZ 20 + +/********************** AOUT "OPTIONAL HEADER" **********************/ + +typedef struct +{ + unsigned long phys_addr; + unsigned long bitarray; +} TAGBITS; + +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 */ + char tagentries[4]; /* number of tag entries to follow */ +} +AOUTHDR; + +/* return a pointer to the tag bits array */ + +#define TAGPTR(aout) ((TAGBITS *) (&(aout.tagentries)+1)) + +/* compute size of a header */ + +/*#define AOUTSZ(aout) (sizeof(AOUTHDR)+(aout.tagentries*sizeof(TAGBITS)))*/ +#define AOUTSZ 32 +#define AOUTHDRSZ 32 + + +/********************** 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 */ + char s_align[4]; /* section alignment */ +}; + + +#define SCNHDR struct external_scnhdr +#define SCNHSZ 44 + +/* + * names of "special" sections + */ +#define _TEXT ".text" +#define _DATA ".data" +#define _BSS ".bss" + +/********************** 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 */ + char padding[2]; /* force alignment */ +}; + + +#define LINENO struct external_lineno +#define LINESZ 8 + +/********************** 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_flags[2]; + char e_type[4]; + char e_sclass[1]; + char e_numaux[1]; + char pad2[2]; +}; + +#define N_BTMASK (0x1f) +#define N_TMASK (0x60) +#define N_BTSHFT (5) +#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 */ + + } 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)) */ + + /****************************************** + * I960-specific *2nd* aux. entry formats + ******************************************/ + struct + { + /* This is a very old typo that keeps getting propagated. */ +#define x_stdindx x_stindx + char x_stindx[4]; /* sys. table entry */ + } x_sc; /* system call entry */ + + struct + { + char x_balntry[4]; /* BAL entry point */ + } x_bal; /* BAL-callable function */ + + struct + { + char x_timestamp[4]; /* time stamp */ + char x_idstring[20]; /* producer identity string */ + + } x_ident; /* Producer ident info */ +}; + +#define SYMENT struct external_syment +#define SYMESZ 24 +#define AUXENT union external_auxent +#define AUXESZ 24 + +# define _ETEXT "_etext" + +/********************** RELOCATION DIRECTIVES **********************/ + +struct external_reloc +{ + char r_vaddr[4]; + char r_symndx[4]; + char r_type[2]; + char pad[2]; +}; + +/* r_type values for the i960. */ + +/* The i960 uses R_RELLONG, which is defined in internal.h as 0x11. + It is an absolute 32 bit relocation. */ + +#define R_IPRMED (0x19) /* 24-bit ip-relative relocation */ +#define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */ +#define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */ + +/* The following relocation types are defined use by relaxing linkers, + which convert 32 bit calls (which require a 64 bit instruction) + into 24 bit calls (which require a 32 bit instruction) when + possible. It will be possible whenever the target of the call is + within a 24 bit range of the call instruction. + + It is always safe to ignore these relocations. They only serve to + mark points which the relaxing linker will have to consider. The + assembler must ensure that the correct code is generated even if + the relocations are ignored. In particular, this means that the + R_IPR13 relocation may not appear with an external symbol. */ + +#define R_IPR13 (0x1d) /* 13 bit ip-relative branch */ +#define R_ALIGN (0x1e) /* alignment marker. This has no + associated symbol. Instead, the + r_symndx field indicates the + require alignment at this point in + the file. It must be a power of 2. */ + +#define RELOC struct external_reloc +#define RELSZ 12 + |