vms stuff from fsf version - untested

1 files changed, 481 insertions, 0 deletions

diff --git a/gas/config/obj-vms.h b/gas/config/obj-vms.h
new file mode 100644
index 0000000..bc1ab17
--- /dev/null
+++ b/gas/config/obj-vms.h
@@ -0,0 +1,481 @@
+/* VMS object file format
+   Copyright (C) 1989, 1990, 1991 Free Software Foundation, Inc.
+
+This file is part of GAS, the GNU Assembler.
+
+GAS 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 2,
+or (at your option) any later version.
+
+GAS 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 GAS; see the file COPYING.  If not, write
+to the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+
+/* Tag to validate a.out object file format processing */
+#define OBJ_VMS 1
+
+#include "targ-cpu.h"
+
+/* This flag is used to remember whether we are in the const or the
+   data section.  By and large they are identical, but we set a no-write
+   bit for psects in the const section.  */
+
+extern char const_flag;
+
+
+/* These are defined in obj-vms.c. */
+extern const short seg_N_TYPE[];
+extern const segT N_TYPE_seg[];
+
+enum reloc_type
+  {
+    NO_RELOC, RELOC_32
+  };
+
+#define N_BADMAG(x)	(0)
+#define N_TXTOFF(x)	( sizeof(struct exec) )
+#define N_DATOFF(x)	( N_TXTOFF(x) + (x).a_text )
+#define N_TROFF(x)	( N_DATOFF(x) + (x).a_data )
+#define N_DROFF(x)	( N_TROFF(x) + (x).a_trsize )
+#define N_SYMOFF(x)	( N_DROFF(x) + (x).a_drsize )
+#define N_STROFF(x)	( N_SYMOFF(x) + (x).a_syms )
+
+/* We use this copy of the exec header for VMS.  We do not actually use it, but
+   what we actually do is let gas fill in the relevant slots, and when we get
+   around to writing an obj file, we just pick out what we need.  */
+
+struct exec
+{
+  unsigned long a_text;		/* length of text, in bytes */
+  unsigned long a_data;		/* length of data, in bytes */
+  unsigned long a_bss;		/* length of uninitialized data area for file, in bytes */
+  unsigned long a_trsize;	/* length of relocation info for text, in bytes */
+  unsigned long a_drsize;	/* length of relocation info for data, in bytes */
+  unsigned long a_entry;	/* start address */
+  unsigned long a_syms;		/* length of symbol table data in file, in bytes */
+};
+
+typedef struct
+  {
+    struct exec header;		/* a.out header */
+    long string_table_size;	/* names + '\0' + sizeof(int) */
+  }
+
+object_headers;
+
+/* A single entry in the symbol table
+ */
+struct nlist
+  {
+    union
+      {
+	char *n_name;
+	struct nlist *n_next;
+	long n_strx;		/* Index into string table	*/
+      }
+    n_un;
+    unsigned char n_type;	/* See below				*/
+    char n_other;		/* Used in i80960 support -- see below	*/
+    short n_desc;
+    unsigned long n_value;
+  };
+
+/* Legal values of n_type
+ */
+#define N_UNDF	0		/* Undefined symbol	*/
+#define N_ABS	2		/* Absolute symbol	*/
+#define N_TEXT	4		/* Text symbol		*/
+#define N_DATA	6		/* Data symbol		*/
+#define N_BSS	8		/* BSS symbol		*/
+#define N_FN	31		/* Filename symbol	*/
+
+#define N_EXT	1		/* External symbol (OR'd in with one of above)	*/
+#define N_TYPE	036		/* Mask for all the type bits			*/
+
+#define N_STAB	0340		/* Mask for all bits used for SDB entries 	*/
+
+#define	N_GSYM	0x20		/* global symbol: name,,0,type,0 */
+#define	N_FNAME	0x22		/* procedure name (f77 kludge): name,,0 */
+#define	N_FUN	0x24		/* procedure: name,,0,linenumber,address */
+#define	N_STSYM	0x26		/* static symbol: name,,0,type,address */
+#define	N_LCSYM	0x28		/* .lcomm symbol: name,,0,type,address */
+#define	N_RSYM	0x40		/* register sym: name,,0,type,register */
+#define	N_SLINE	0x44		/* src line: 0,,0,linenumber,address */
+#define	N_CATCH	0x54		/* */
+#define	N_SSYM	0x60		/* structure elt: name,,0,type,struct_offset */
+#define	N_SO	0x64		/* source file name: name,,0,0,address */
+#define	N_LSYM	0x80		/* local sym: name,,0,type,offset */
+#define	N_SOL	0x84		/* #included file name: name,,0,0,address */
+#define	N_PSYM	0xa0		/* parameter: name,,0,type,offset */
+#define	N_ENTRY	0xa4		/* alternate entry: name,linenumber,address */
+#define	N_LBRAC	0xc0		/* left bracket: 0,,0,nesting level,address */
+#define	N_RBRAC	0xe0		/* right bracket: 0,,0,nesting level,address */
+#define	N_BCOMM	0xe2		/* begin common: name,, */
+#define	N_ECOMM	0xe4		/* end common: name,, */
+#define	N_ECOML	0xe8		/* end common (local name): ,,address */
+#define	N_LENG	0xfe		/* second stab entry with length information */
+
+/* SYMBOL TABLE */
+/* Symbol table entry data type */
+
+typedef struct nlist obj_symbol_type;	/* Symbol table entry */
+
+/* Symbol table macros and constants */
+
+/*
+ *  Macros to extract information from a symbol table entry.
+ *  This syntaxic indirection allows independence regarding a.out or coff.
+ *  The argument (s) of all these macros is a pointer to a symbol table entry.
+ */
+
+/* True if the symbol is external */
+#define S_IS_EXTERNAL(s)	((s)->sy_symbol.n_type & N_EXT)
+
+/* True if symbol has been defined, ie is in N_{TEXT,DATA,BSS,ABS} or N_EXT */
+#define S_IS_DEFINED(s)		(S_GET_TYPE(s) != N_UNDF)
+
+#define S_IS_REGISTER(s)	((s)->sy_symbol.n_type == N_REGISTER)
+
+/* True if a debug special symbol entry */
+#define S_IS_DEBUG(s)		((s)->sy_symbol.n_type & N_STAB)
+/* True if a symbol is local symbol name */
+/* A symbol name whose name begin with ^A is a gas internal pseudo symbol
+   nameless symbols come from .stab directives. */
+#define S_IS_LOCAL(s)		(S_GET_NAME(s) && \
+				 !S_IS_DEBUG(s) && \
+				 (S_GET_NAME(s)[0] == '\001' || \
+				  (S_LOCAL_NAME(s) && !flagseen['L'])))
+/* True if a symbol is not defined in this file */
+#define S_IS_EXTERN(s)		((s)->sy_symbol.n_type & N_EXT)
+/* True if the symbol has been generated because of a .stabd directive */
+#define S_IS_STABD(s)		(S_GET_NAME(s) == (char *)0)
+
+/* Accessors */
+/* The value of the symbol */
+#define S_GET_VALUE(s)		(((s)->sy_symbol.n_value))
+/* The name of the symbol */
+#define S_GET_NAME(s)		((s)->sy_symbol.n_un.n_name)
+/* The pointer to the string table */
+#define S_GET_OFFSET(s)		((s)->sy_symbol.n_un.n_strx)
+/* The raw type of the symbol */
+#define S_GET_RAW_TYPE(s)		((s)->sy_symbol.n_type)
+/* The type of the symbol */
+#define S_GET_TYPE(s)		((s)->sy_symbol.n_type & N_TYPE)
+/* The numeric value of the segment */
+#define S_GET_SEGMENT(s)	(N_TYPE_seg[S_GET_TYPE(s)])
+/* The n_other expression value */
+#define S_GET_OTHER(s)		((s)->sy_symbol.n_other)
+/* The n_desc expression value */
+#define S_GET_DESC(s)		((s)->sy_symbol.n_desc)
+
+/* Modifiers */
+/* Set the value of the symbol */
+#define S_SET_VALUE(s,v)	((s)->sy_symbol.n_value = (unsigned long) (v))
+/* Assume that a symbol cannot be simultaneously in more than on segment */
+/* set segment */
+#define S_SET_SEGMENT(s,seg)	((s)->sy_symbol.n_type &= ~N_TYPE,(s)->sy_symbol.n_type|=SEGMENT_TO_SYMBOL_TYPE(seg))
+/* The symbol is external */
+#define S_SET_EXTERNAL(s)	((s)->sy_symbol.n_type |= N_EXT)
+/* The symbol is not external */
+#define S_CLEAR_EXTERNAL(s)	((s)->sy_symbol.n_type &= ~N_EXT)
+/* Set the name of the symbol */
+#define S_SET_NAME(s,v)		((s)->sy_symbol.n_un.n_name = (v))
+/* Set the offset in the string table */
+#define S_SET_OFFSET(s,v)	((s)->sy_symbol.n_un.n_strx = (v))
+/* Set the n_other expression value */
+#define S_SET_OTHER(s,v)	((s)->sy_symbol.n_other = (v))
+/* Set the n_desc expression value */
+#define S_SET_DESC(s,v)		((s)->sy_symbol.n_desc = (v))
+
+
+/* File header macro and type definition */
+
+#define H_GET_TEXT_SIZE(h)		((h)->header.a_text)
+#define H_GET_DATA_SIZE(h)		((h)->header.a_data)
+#define H_GET_BSS_SIZE(h)		((h)->header.a_bss)
+
+#define H_SET_TEXT_SIZE(h,v)		((h)->header.a_text = md_section_align(SEG_TEXT, (v)))
+#define H_SET_DATA_SIZE(h,v)		((h)->header.a_data = md_section_align(SEG_DATA, (v)))
+#define H_SET_BSS_SIZE(h,v)		((h)->header.a_bss = md_section_align(SEG_BSS, (v)))
+
+#define H_SET_STRING_SIZE(h,v)		((h)->string_table_size = (v))
+#define H_SET_SYMBOL_TABLE_SIZE(h,v)	((h)->header.a_syms = (v) * \
+					 sizeof(struct nlist))
+
+/*
+ * Current means for getting the name of a segment.
+ * This will change for infinite-segments support (e.g. COFF).
+ */
+#define	segment_name(seg)  ( seg_name[(int)(seg)] )
+extern char *const seg_name[];
+
+
+/* line numbering stuff. */
+#define OBJ_EMIT_LINENO(a, b, c)	{;}
+
+#define obj_symbol_new_hook(s)	{;}
+
+#ifdef __STDC__
+struct fix;
+void tc_aout_fix_to_chars (char *where, struct fix *fixP, relax_addressT segment_address);
+#else
+void tc_aout_fix_to_chars ();
+#endif /* __STDC__ */
+
+/* The rest of this file contains definitions for constants used within the actual
+   VMS object file.  We do not use a $ in the symbols (as per usual VMS
+   convention) since System V gags on it.  */
+
+#define	OBJ_S_C_HDR	0
+#define	OBJ_S_C_HDR_MHD	0
+#define	OBJ_S_C_HDR_LNM	1
+#define	OBJ_S_C_HDR_SRC	2
+#define	OBJ_S_C_HDR_TTL	3
+#define	OBJ_S_C_HDR_CPR	4
+#define	OBJ_S_C_HDR_MTC	5
+#define	OBJ_S_C_HDR_GTX	6
+#define	OBJ_S_C_GSD	1
+#define	OBJ_S_C_GSD_PSC	0
+#define	OBJ_S_C_GSD_SYM	1
+#define	OBJ_S_C_GSD_EPM	2
+#define	OBJ_S_C_GSD_PRO	3
+#define	OBJ_S_C_GSD_SYMW	4
+#define	OBJ_S_C_GSD_EPMW	5
+#define	OBJ_S_C_GSD_PROW	6
+#define	OBJ_S_C_GSD_IDC	7
+#define	OBJ_S_C_GSD_ENV	8
+#define	OBJ_S_C_GSD_LSY	9
+#define	OBJ_S_C_GSD_LEPM	10
+#define	OBJ_S_C_GSD_LPRO	11
+#define	OBJ_S_C_GSD_SPSC	12
+#define	OBJ_S_C_TIR	2
+#define	OBJ_S_C_EOM	3
+#define	OBJ_S_C_DBG	4
+#define	OBJ_S_C_TBT	5
+#define	OBJ_S_C_LNK	6
+#define	OBJ_S_C_EOMW	7
+#define	OBJ_S_C_MAXRECTYP	7
+#define	OBJ_S_K_SUBTYP	1
+#define	OBJ_S_C_SUBTYP	1
+#define	OBJ_S_C_MAXRECSIZ	2048
+#define	OBJ_S_C_STRLVL	0
+#define	OBJ_S_C_SYMSIZ	31
+#define	OBJ_S_C_STOREPLIM	-1
+#define	OBJ_S_C_PSCALILIM	9
+
+#define	MHD_S_C_MHD	0
+#define	MHD_S_C_LNM	1
+#define	MHD_S_C_SRC	2
+#define	MHD_S_C_TTL	3
+#define	MHD_S_C_CPR	4
+#define	MHD_S_C_MTC	5
+#define	MHD_S_C_GTX	6
+#define	MHD_S_C_MAXHDRTYP	6
+
+#define	GSD_S_K_ENTRIES	1
+#define	GSD_S_C_ENTRIES	1
+#define	GSD_S_C_PSC	0
+#define	GSD_S_C_SYM	1
+#define	GSD_S_C_EPM	2
+#define	GSD_S_C_PRO	3
+#define	GSD_S_C_SYMW	4
+#define	GSD_S_C_EPMW	5
+#define	GSD_S_C_PROW	6
+#define	GSD_S_C_IDC	7
+#define	GSD_S_C_ENV	8
+#define	GSD_S_C_LSY	9
+#define	GSD_S_C_LEPM	10
+#define	GSD_S_C_LPRO	11
+#define	GSD_S_C_SPSC	12
+#define	GSD_S_C_SYMV	13
+#define	GSD_S_C_EPMV	14
+#define	GSD_S_C_PROV	15
+#define	GSD_S_C_MAXRECTYP	15
+
+#define	GSY_S_M_WEAK	1
+#define	GSY_S_M_DEF	2
+#define	GSY_S_M_UNI	4
+#define	GSY_S_M_REL	8
+
+#define	GPS_S_M_PIC	1
+#define	GPS_S_M_LIB	2
+#define	GPS_S_M_OVR	4
+#define	GPS_S_M_REL	8
+#define	GPS_S_M_GBL	16
+#define	GPS_S_M_SHR	32
+#define	GPS_S_M_EXE	64
+#define	GPS_S_M_RD	128
+#define	GPS_S_M_WRT	256
+#define	GPS_S_M_VEC	512
+#define	GPS_S_K_NAME	9
+#define	GPS_S_C_NAME	9
+
+#define	TIR_S_C_STA_GBL	0
+#define	TIR_S_C_STA_SB	1
+#define	TIR_S_C_STA_SW	2
+#define	TIR_S_C_STA_LW	3
+#define	TIR_S_C_STA_PB	4
+#define	TIR_S_C_STA_PW	5
+#define	TIR_S_C_STA_PL	6
+#define	TIR_S_C_STA_UB	7
+#define	TIR_S_C_STA_UW	8
+#define	TIR_S_C_STA_BFI	9
+#define	TIR_S_C_STA_WFI	10
+#define	TIR_S_C_STA_LFI	11
+#define	TIR_S_C_STA_EPM	12
+#define	TIR_S_C_STA_CKARG	13
+#define	TIR_S_C_STA_WPB	14
+#define	TIR_S_C_STA_WPW	15
+#define	TIR_S_C_STA_WPL	16
+#define	TIR_S_C_STA_LSY	17
+#define	TIR_S_C_STA_LIT	18
+#define	TIR_S_C_STA_LEPM	19
+#define	TIR_S_C_MAXSTACOD	19
+#define	TIR_S_C_MINSTOCOD	20
+#define	TIR_S_C_STO_SB	20
+#define	TIR_S_C_STO_SW	21
+#define	TIR_S_C_STO_L	22
+#define	TIR_S_C_STO_BD	23
+#define	TIR_S_C_STO_WD	24
+#define	TIR_S_C_STO_LD	25
+#define	TIR_S_C_STO_LI	26
+#define	TIR_S_C_STO_PIDR	27
+#define	TIR_S_C_STO_PICR	28
+#define	TIR_S_C_STO_RSB	29
+#define	TIR_S_C_STO_RSW	30
+#define	TIR_S_C_STO_RL	31
+#define	TIR_S_C_STO_VPS	32
+#define	TIR_S_C_STO_USB	33
+#define	TIR_S_C_STO_USW	34
+#define	TIR_S_C_STO_RUB	35
+#define	TIR_S_C_STO_RUW	36
+#define	TIR_S_C_STO_B	37
+#define	TIR_S_C_STO_W	38
+#define	TIR_S_C_STO_RB	39
+#define	TIR_S_C_STO_RW	40
+#define	TIR_S_C_STO_RIVB	41
+#define	TIR_S_C_STO_PIRR	42
+#define	TIR_S_C_MAXSTOCOD	42
+#define	TIR_S_C_MINOPRCOD	50
+#define	TIR_S_C_OPR_NOP	50
+#define	TIR_S_C_OPR_ADD	51
+#define	TIR_S_C_OPR_SUB	52
+#define	TIR_S_C_OPR_MUL	53
+#define	TIR_S_C_OPR_DIV	54
+#define	TIR_S_C_OPR_AND	55
+#define	TIR_S_C_OPR_IOR	56
+#define	TIR_S_C_OPR_EOR	57
+#define	TIR_S_C_OPR_NEG	58
+#define	TIR_S_C_OPR_COM	59
+#define	TIR_S_C_OPR_INSV	60
+#define	TIR_S_C_OPR_ASH	61
+#define	TIR_S_C_OPR_USH	62
+#define	TIR_S_C_OPR_ROT	63
+#define	TIR_S_C_OPR_SEL	64
+#define	TIR_S_C_OPR_REDEF	65
+#define	TIR_S_C_OPR_DFLIT	66
+#define	TIR_S_C_MAXOPRCOD	66
+#define	TIR_S_C_MINCTLCOD	80
+#define	TIR_S_C_CTL_SETRB	80
+#define	TIR_S_C_CTL_AUGRB	81
+#define	TIR_S_C_CTL_DFLOC	82
+#define	TIR_S_C_CTL_STLOC	83
+#define	TIR_S_C_CTL_STKDL	84
+#define	TIR_S_C_MAXCTLCOD	84
+
+/*
+ *	Debugger symbol definitions:  These are done by hand, as no
+ *					machine-readable version seems
+ *					to be available.
+ */
+#define	DST_S_C_C		7	/* Language == "C"	*/
+#define DST_S_C_VERSION	153
+#define	DST_S_C_SOURCE	155	/* Source file		*/
+#define DST_S_C_PROLOG	162
+#define	DST_S_C_BLKBEG	176	/* Beginning of block	*/
+#define	DST_S_C_BLKEND	177	/* End of block	*/
+#define DST_S_C_ENTRY	181
+#define DST_S_C_PSECT	184
+#define	DST_S_C_LINE_NUM	185	/* Line Number		*/
+#define DST_S_C_LBLORLIT	186
+#define DST_S_C_LABEL	187
+#define	DST_S_C_MODBEG	188	/* Beginning of module	*/
+#define	DST_S_C_MODEND	189	/* End of module	*/
+#define	DST_S_C_RTNBEG	190	/* Beginning of routine	*/
+#define	DST_S_C_RTNEND	191	/* End of routine	*/
+#define	DST_S_C_DELTA_PC_W	1	/* Incr PC	*/
+#define	DST_S_C_INCR_LINUM	2	/* Incr Line #	*/
+#define	DST_S_C_INCR_LINUM_W	3	/* Incr Line #	*/
+#define DST_S_C_SET_LINUM_INCR	4
+#define DST_S_C_SET_LINUM_INCR_W	5
+#define DST_S_C_RESET_LINUM_INCR	6
+#define DST_S_C_BEG_STMT_MODE	7
+#define DST_S_C_END_STMT_MODE	8
+#define	DST_S_C_SET_LINE_NUM	9	/* Set Line #	*/
+#define DST_S_C_SET_PC		10
+#define DST_S_C_SET_PC_W		11
+#define DST_S_C_SET_PC_L		12
+#define DST_S_C_SET_STMTNUM	13
+#define DST_S_C_TERM		14	/* End of lines	*/
+#define DST_S_C_TERM_W		15	/* End of lines	*/
+#define	DST_S_C_SET_ABS_PC	16	/* Set PC	*/
+#define	DST_S_C_DELTA_PC_L	17	/* Incr PC	*/
+#define DST_S_C_INCR_LINUM_L	18	/* Incr Line #	*/
+#define DST_S_C_SET_LINUM_B	19	/* Set Line #	*/
+#define DST_S_C_SET_LINUM_L	20	/* Set Line #	*/
+#define	DST_S_C_TERM_L		21	/* End of lines	*/
+/* these are used with DST_S_C_SOURCE */
+#define	DST_S_C_SRC_FORMFEED	16	/* ^L counts	*/
+#define	DST_S_C_SRC_DECLFILE	1	/* Declare file	*/
+#define	DST_S_C_SRC_SETFILE	2	/* Set file	*/
+#define	DST_S_C_SRC_SETREC_L	3	/* Set record	*/
+#define	DST_S_C_SRC_DEFLINES_W	10	/* # of line	*/
+/* the following are the codes for the various data types.  Anything not on
+ * the list is included under 'advanced_type'
+ */
+#define DBG_S_C_UCHAR		0x02
+#define DBG_S_C_USINT		0x03
+#define DBG_S_C_ULINT		0x04
+#define DBG_S_C_SCHAR		0x06
+#define DBG_S_C_SSINT		0x07
+#define DBG_S_C_SLINT		0x08
+#define DBG_S_C_REAL4		0x0a
+#define DBG_S_C_REAL8		0x0b
+#define DBG_S_C_FUNCTION_ADDR	0x17
+#define DBG_S_C_ADVANCED_TYPE	0xa3
+/*  These are the codes that are used to generate the definitions of struct
+ *  union and enum records
+ */
+#define DBG_S_C_ENUM_ITEM			0xa4
+#define DBG_S_C_ENUM_START		0xa5
+#define DBG_S_C_ENUM_END			0xa6
+#define DBG_S_C_STRUCT_START		0xab
+#define DBG_S_C_STRUCT_ITEM		0xff
+#define DBG_S_C_STRUCT_END		0xac
+/*  These are the codes that are used in the suffix records to determine the
+ *  actual data type
+ */
+#define DBG_S_C_BASIC			0x01
+#define DBG_S_C_BASIC_ARRAY		0x02
+#define DBG_S_C_STRUCT			0x03
+#define DBG_S_C_POINTER			0x04
+#define DBG_S_C_VOID			0x05
+#define DBG_S_C_COMPLEX_ARRAY		0x07
+/* These codes are used in the generation of the symbol definition records
+ */
+#define DBG_S_C_FUNCTION_PARAMETER	0xc9
+#define DBG_S_C_LOCAL_SYM			0xd9
+/*
+ * Local Variables:
+ * comment-column: 0
+ * fill-column: 131
+ * End:
+ */
+
+/* end of obj-vms.h */