--- /dev/null
+/* ECOFF include file for MIPS machines. It has been split off from the
+ include files for other COFF machines. It is derived from... */
+
+/*** coff information for 80960. Origins: Intel corp, natch. */
+
+/* This include file is also used for rudimentary ECOFF support on MIPS
+ machines. Such differences as are needed are #ifdef MIPS. */
+/* For separate ecoff.h: we force MIPS on, to get the changes. */
+#undef MIPS
+#define MIPS 1
+
+/* NOTE: Tagentries (cf TAGBITS) are not used by the 960 */
+
+/********************** FILE HEADER **********************/
+
+struct filehdr {
+ unsigned short f_magic; /* magic number */
+ unsigned short f_nscns; /* number of sections */
+ long f_timdat; /* time & date stamp */
+ long f_symptr; /* file pointer to symtab */
+ long f_nsyms; /* number of symtab entries */
+ unsigned short f_opthdr; /* sizeof(optional hdr) */
+ unsigned short f_flags; /* 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 F_AR32WR (0x0010)
+
+/*
+ * 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)
+
+ /*
+ * 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 filehdr
+#define FILHSZ sizeof(FILHDR)
+
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+
+typedef struct {
+ unsigned long phys_addr;
+ unsigned long bitarray;
+} TAGBITS;
+
+
+/* These appear to be used only by exec(2). I don't know who cares
+ about them in a cross development environment. In any case, this
+ is my collection after researching the issue for a few hours.
+ Apparently, most have these have remained essentially unchanged
+ since v7 days, although a few new ones have been added. xoxorich.
+ Could we have a little more teleology please? -- Gumby */
+
+#define BAD0MAGIC (0401) /* (?) "lpd (UNIX/RT)" */
+#define BAD1MAGIC (0405) /* (?) overlay */
+#define OMAGIC (0407) /* old impure format. data immediately
+ follows text. both sections are rw. */
+#define NMAGIC (0410) /* split i&d, read-only text */
+#define A_MAGIC3 (0411) /* (?) "separated I&D" */
+#define ZMAGIC (0413) /* like NMAGIC, but demand loaded */
+#define PAGEMAGIC2 (0414) /* (?) like ZMAGIC, but address zero
+ explicitly unmapped. */ /* */
+#define REGMAGIC (0414) /* (?) a PAGEMAGIC2 alias? */
+#define PAGEMAGIC3 (0415) /* (?) like ZMAGIC, but address zero mapped. */
+#define A_MAGIC5 (0437) /* (?) "system overlay, separated I&D" */
+#define SASMAGIC (010000) /* (?) "Single Address Space" */
+#define MASMAGIC (020000) /* (?) "Multiple (separate I/D) Addr. Spaces" */
+
+typedef struct aouthdr {
+ short magic; /* type of file */
+ short vstamp; /* version stamp */
+ unsigned long tsize; /* text size in bytes, padded to FW bdry*/
+ unsigned long dsize; /* initialized data " " */
+ unsigned long bsize; /* uninitialized data " " */
+#if U3B
+ unsigned long dum1;
+ unsigned long dum2; /* pad to entry point */
+#endif
+ unsigned long entry; /* entry pt. */
+ unsigned long text_start; /* base of text used for this file */
+ unsigned long data_start; /* base of data used for this file */
+ unsigned long tagentries; /* 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 (sizeof(AOUTHDR))
+
+
+/********************** STORAGE CLASSES **********************/
+
+#define C_EFCN -1 /* physical end of function */
+#define C_NULL 0
+#define C_AUTO 1 /* automatic variable */
+#define C_EXT 2 /* external symbol */
+#define C_STAT 3 /* static */
+#define C_REG 4 /* register variable */
+#define C_EXTDEF 5 /* external definition */
+#define C_LABEL 6 /* label */
+#define C_ULABEL 7 /* undefined label */
+#define C_MOS 8 /* member of structure */
+#define C_ARG 9 /* function argument */
+#define C_STRTAG 10 /* structure tag */
+#define C_MOU 11 /* member of union */
+#define C_UNTAG 12 /* union tag */
+#define C_TPDEF 13 /* type definition */
+#define C_USTATIC 14 /* undefined static */
+#define C_ENTAG 15 /* enumeration tag */
+#define C_MOE 16 /* member of enumeration */
+#define C_REGPARM 17 /* register parameter */
+#define C_FIELD 18 /* bit field */
+/* #define C_REGARG 19 */ /* My guess - but Intel specific*/
+#define C_AUTOARG 19 /* auto argument */
+#define C_LASTENT 20 /* dummy entry (end of block) */
+#define C_BLOCK 100 /* ".bb" or ".eb" */
+#define C_FCN 101 /* ".bf" or ".ef" */
+#define C_EOS 102 /* end of structure */
+#define C_FILE 103 /* file name */
+#define C_LINE 104 /* line # reformatted as symbol table entry */
+#define C_ALIAS 105 /* duplicate tag */
+#define C_HIDDEN 106 /* ext symbol in dmert public lib */
+
+ /* New storage classes for 80960 */
+
+/* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
+#define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
+
+#define C_SCALL 107 /* Procedure reachable via system call */
+#define C_LEAFEXT 108 /* External leaf */
+#define C_LEAFSTAT 113 /* Static leaf */
+#define C_OPTVAR 109 /* Optimized variable */
+#define C_DEFINE 110 /* Preprocessor #define */
+#define C_PRAGMA 111 /* Advice to compiler or linker */
+#define C_SEGMENT 112 /* 80960 segment name */
+
+/********************** SECTION HEADER **********************/
+
+struct scnhdr {
+ char s_name[8]; /* section name */
+ long s_paddr; /* physical address, aliased s_nlib */
+ long s_vaddr; /* virtual address */
+ long s_size; /* section size */
+ long s_scnptr; /* file ptr to raw data for section */
+ long s_relptr; /* file ptr to relocation */
+ long s_lnnoptr; /* file ptr to line numbers */
+ unsigned short s_nreloc; /* number of relocation entries */
+ unsigned short s_nlnno; /* number of line number entries*/
+ long s_flags; /* flags */
+#ifndef MIPS
+ /* This field exists in Intel COFF, not in Mips ECOFF. */
+ unsigned long s_align; /* section alignment */
+#endif
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT ".text"
+#define _DATA ".data"
+#define _BSS ".bss"
+
+/*
+ * s_flags "type"
+ */
+#define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
+#define STYP_DSECT (0x0001) /* "dummy": relocated only*/
+#define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
+#define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
+#define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
+#define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
+ loaded; reloc & lineno entries processed normally */
+#define STYP_TEXT (0x0020) /* section contains text only */
+#define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
+ will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
+ update all process invocations. */
+#define STYP_DATA (0x0040) /* section contains data only */
+#define STYP_BSS (0x0080) /* section contains bss only */
+#define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
+#define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
+#define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
+#define STYP_LIB (0x0800) /* for .lib: same as INFO */
+#define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
+#define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions wherever padding is necessary and there is a
+ word of contiguous bytes beginning on a word boundary. */
+
+#define SCNHDR struct scnhdr
+#define SCNHSZ sizeof(SCNHDR)
+
+
+/********************** 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 lineno {
+ union {
+ long l_symndx; /* function name symbol index, iff l_lnno == 0*/
+ long l_paddr; /* (physical) address of line number */
+ } l_addr;
+ unsigned short l_lnno; /* line number */
+ char padding[2]; /* force alignment */
+};
+
+#define LINENO struct lineno
+#define LINESZ sizeof(LINENO)
+
+
+/********************** SYMBOLS **********************/
+
+#define SYMNMLEN 8 /* # characters in a symbol name */
+#define FILNMLEN 14 /* # characters in a file name */
+#define DIMNUM 4 /* # array dimensions in auxiliary entry */
+
+struct syment {
+ union {
+ char _n_name[SYMNMLEN]; /* old COFF version */
+ struct {
+ long _n_zeroes; /* new == 0 */
+ long _n_offset; /* offset into string table */
+ } _n_n;
+ char *_n_nptr[2]; /* allows for overlaying */
+ } _n;
+ long n_value; /* value of symbol */
+ short n_scnum; /* section number */
+ unsigned short n_flags; /* copy of flags from filhdr */
+ unsigned long n_type; /* type and derived type */
+ char n_sclass; /* storage class */
+ char n_numaux; /* number of aux. entries */
+ char pad2[2]; /* force alignment */
+};
+
+#define n_name _n._n_name
+#define n_ptr _n._n_nptr[1]
+#define n_zeroes _n._n_n._n_zeroes
+#define n_offset _n._n_n._n_offset
+
+/*
+ * Relocatable symbols have number of the section in which they are defined,
+ * or one of the following:
+ */
+#define N_UNDEF ((short)0) /* undefined symbol */
+#define N_ABS ((short)-1) /* value of symbol is absolute */
+#define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
+#define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
+#define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
+
+/*
+ * Type of a symbol, in low 4 bits of the word
+ */
+#define T_NULL 0
+#define T_VOID 1 /* function argument (only used by compiler) */
+#define T_CHAR 2 /* character */
+#define T_SHORT 3 /* short integer */
+#define T_INT 4 /* integer */
+#define T_LONG 5 /* long integer */
+#define T_FLOAT 6 /* floating point */
+#define T_DOUBLE 7 /* double word */
+#define T_STRUCT 8 /* structure */
+#define T_UNION 9 /* union */
+#define T_ENUM 10 /* enumeration */
+#define T_MOE 11 /* member of enumeration*/
+#define T_UCHAR 12 /* unsigned character */
+#define T_USHORT 13 /* unsigned short */
+#define T_UINT 14 /* unsigned integer */
+#define T_ULONG 15 /* unsigned long */
+#define T_LNGDBL 16 /* long double */
+
+/*
+ * derived types, in n_type
+*/
+#define DT_NON (0) /* no derived type */
+#define DT_PTR (1) /* pointer */
+#define DT_FCN (2) /* function */
+#define DT_ARY (3) /* array */
+
+#define N_BTMASK (0x1f)
+#define N_TMASK (0x60)
+#define N_BTSHFT (5)
+#define N_TSHIFT (2)
+
+#define BTYPE(x) ((x) & N_BTMASK)
+
+#define ISPTR(x) (((x) & N_TMASK) == (DT_PTR << N_BTSHFT))
+#define ISFCN(x) (((x) & N_TMASK) == (DT_FCN << N_BTSHFT))
+#define ISARY(x) (((x) & N_TMASK) == (DT_ARY << N_BTSHFT))
+
+#define DECREF(x) ((((x)>>N_TSHIFT)&~N_BTMASK)|((x)&N_BTMASK))
+
+union auxent {
+ struct {
+ long x_tagndx; /* str, un, or enum tag indx */
+ union {
+ struct {
+ unsigned short x_lnno; /* declaration line number */
+ unsigned short x_size; /* str/union/array size */
+ } x_lnsz;
+ long x_fsize; /* size of function */
+ } x_misc;
+ union {
+ struct { /* if ISFCN, tag, or .bb */
+ long x_lnnoptr; /* ptr to fcn line # */
+ long x_endndx; /* entry ndx past block end */
+ } x_fcn;
+ struct { /* if ISARY, up to 4 dimen. */
+ unsigned short x_dimen[DIMNUM];
+ } x_ary;
+ } x_fcnary;
+ unsigned short x_tvndx; /* tv index */
+ } x_sym;
+
+ union {
+ char x_fname[FILNMLEN];
+ struct {
+ long x_zeroes;
+ long x_offset;
+ } x_n;
+ } x_file;
+
+ struct {
+ long x_scnlen; /* section length */
+ unsigned short x_nreloc; /* # relocation entries */
+ unsigned short x_nlinno; /* # line numbers */
+ } x_scn;
+
+ struct {
+ long x_tvfill; /* tv fill value */
+ unsigned short x_tvlen; /* length of .tv */
+ unsigned short x_tvran[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
+ long x_stindx; /* sys. table entry */
+ } x_sc; /* system call entry */
+
+ struct {
+ unsigned long x_balntry; /* BAL entry point */
+ } x_bal; /* BAL-callable function */
+
+ struct {
+ unsigned long x_timestamp; /* time stamp */
+ char x_idstring[20]; /* producer identity string */
+ } x_ident; /* Producer ident info */
+
+ char a[sizeof(struct syment)]; /* force auxent/syment sizes to match */
+};
+
+#define SYMENT struct syment
+#define SYMESZ sizeof(SYMENT)
+#define AUXENT union auxent
+#define AUXESZ sizeof(AUXENT)
+
+#if VAX || I960
+# define _ETEXT "_etext"
+#else
+# define _ETEXT "etext"
+#endif
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+struct reloc {
+ long r_vaddr; /* Virtual address of reference */
+ long r_symndx; /* Index into symbol table */
+ unsigned short r_type; /* Relocation type */
+ char pad[2]; /* Unused */
+};
+
+/* Relevent values for r_type and i960. Would someone please document them */
+
+#define R_RELLONG (0x11) /* Direct 32-bit relocation */
+#define R_IPRSHORT (0x18)
+#define R_IPRMED (0x19) /* 24-bit ip-relative relocation */
+#define R_IPRLONG (0x1a)
+#define R_OPTCALL (0x1b) /* 32-bit optimizable call (leafproc/sysproc) */
+#define R_OPTCALLX (0x1c) /* 64-bit optimizable call (leafproc/sysproc) */
+#define R_GETSEG (0x1d)
+#define R_GETPA (0x1e)
+#define R_TAGWORD (0x1f)
+
+#define RELOC struct reloc
+#define RELSZ sizeof(RELOC)
+
+#define DEFAULT_DATA_SECTION_ALIGNMENT 4
+#define DEFAULT_BSS_SECTION_ALIGNMENT 4
+#define DEFAULT_TEXT_SECTION_ALIGNMENT 16
+/* For new sections we havn't heard of before */
+#define DEFAULT_SECTION_ALIGNMENT 4
projects / deliverable / binutils-gdb.git / commitdiff
