bfd/evax.h

   1 /* evax.h -- Header file for ALPHA EVAX (openVMS/Alpha) support.
   2    Copyright 1996, 1997 Free Software Foundation, Inc.
   3
   4    Written by Klaus K"ampf (kkaempf@progis.de)
   5    of proGIS Softwareentwicklung, Aachen, Germany
   6
   7 This file is part of BFD, the Binary File Descriptor library.
   8
   9 This program is free software; you can redistribute it and/or modify
  10 it under the terms of the GNU General Public License as published by
  11 the Free Software Foundation; either version 2 of the License, or
  12 (at your option) any later version.
  13
  14 This program is distributed in the hope that it will be useful,
  15 but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 GNU General Public License for more details.
  18
  19 You should have received a copy of the GNU General Public License
  20 along with this program; if not, write to the Free Software
  21 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  22
  23 #ifndef EVAX_H
  24 #define EVAX_H
  25
  26 /* EVAX Text, information and relocation record (ETIR) definitions.  */
  27
  28 #define ETIR_S_C_MINSTACOD 0            /* Minimum store code           */
  29 #define ETIR_S_C_STA_GBL 0              /* Stack global symbol value    */
  30 #define ETIR_S_C_STA_LW 1               /* Stack longword               */
  31 #define ETIR_S_C_STA_QW 2               /* Stack quadword               */
  32 #define ETIR_S_C_STA_PQ 3               /* Stack psect base plus quadword offset  */
  33 #define ETIR_S_C_STA_LI 4               /* Stack literal                */
  34 #define ETIR_S_C_STA_MOD 5              /* Stack module                 */
  35 #define ETIR_S_C_STA_CKARG 6            /* Check Arguments              */
  36 #define ETIR_S_C_MAXSTACOD 6            /* Maximum stack code           */
  37 #define ETIR_S_C_MINSTOCOD 50           /* Minimum store code           */
  38 #define ETIR_S_C_STO_B 50               /* Store byte                   */
  39 #define ETIR_S_C_STO_W 51               /* Store word                   */
  40 #define ETIR_S_C_STO_LW 52              /* Store longword               */
  41 #define ETIR_S_C_STO_QW 53              /* Store quadword               */
  42 #define ETIR_S_C_STO_IMMR 54            /* Store immediate Repeated     */
  43 #define ETIR_S_C_STO_GBL 55             /* Store global                 */
  44 #define ETIR_S_C_STO_CA 56              /* Store code address           */
  45 #define ETIR_S_C_STO_RB 57              /* Store relative branch        */
  46 #define ETIR_S_C_STO_AB 58              /* Store absolute branch        */
  47 #define ETIR_S_C_STO_OFF 59             /* Store offset within psect    */
  48 #define ETIR_S_C_STO_IMM 61             /* Store immediate              */
  49 #define ETIR_S_C_STO_GBL_LW 62          /* Store global Longword        */
  50 #define ETIR_S_C_STO_LP_PSB 63          /* STO_LP_PSB not valid in level 2 use STC_LP_PSB                       */
  51 #define ETIR_S_C_STO_HINT_GBL 64        /* Store 14 bit HINT at global address */
  52 #define ETIR_S_C_STO_HINT_PS 65         /* Store 14 bit HINT at psect + offset */
  53 #define ETIR_S_C_MAXSTOCOD 65           /* Maximum store code           */
  54 #define ETIR_S_C_MINOPRCOD 100          /* Minimum operate code         */
  55 #define ETIR_S_C_OPR_NOP 100            /* No-op                        */
  56 #define ETIR_S_C_OPR_ADD 101            /* Add                          */
  57 #define ETIR_S_C_OPR_SUB 102            /* Subtract                     */
  58 #define ETIR_S_C_OPR_MUL 103            /* Multiply                     */
  59 #define ETIR_S_C_OPR_DIV 104            /* Divide                       */
  60 #define ETIR_S_C_OPR_AND 105            /* Logical AND                  */
  61 #define ETIR_S_C_OPR_IOR 106            /* Logical inclusive OR         */
  62 #define ETIR_S_C_OPR_EOR 107            /* Logical exclusive OR         */
  63 #define ETIR_S_C_OPR_NEG 108            /* Negate                       */
  64 #define ETIR_S_C_OPR_COM 109            /* Complement                   */
  65 #define ETIR_S_C_OPR_INSV 110           /* Insert bit field             */
  66 #define ETIR_S_C_OPR_ASH 111            /* Arithmetic shift             */
  67 #define ETIR_S_C_OPR_USH 112            /* Unsigned shift               */
  68 #define ETIR_S_C_OPR_ROT 113            /* Rotate                       */
  69 #define ETIR_S_C_OPR_SEL 114            /* Select one of three longwords on top of stack  */
  70 #define ETIR_S_C_OPR_REDEF 115          /* Redefine this symbol after pass 2  */
  71 #define ETIR_S_C_OPR_DFLIT 116          /* Define a literal             */
  72 #define ETIR_S_C_MAXOPRCOD 116          /* Maximum operate code         */
  73 #define ETIR_S_C_MINCTLCOD 150          /* Minimum control code         */
  74 #define ETIR_S_C_CTL_SETRB 150          /* Set relocation base          */
  75 #define ETIR_S_C_CTL_AUGRB 151          /* Augment relocation base      */
  76 #define ETIR_S_C_CTL_DFLOC 152          /* Define debug location        */
  77 #define ETIR_S_C_CTL_STLOC 153          /* Set debug location           */
  78 #define ETIR_S_C_CTL_STKDL 154          /* Stack debug location         */
  79 #define ETIR_S_C_MAXCTLCOD 154          /* Maximum control code         */
  80 #define ETIR_S_C_MINSTCCOD 200          /* Minimum store-conditional code    */
  81 #define ETIR_S_C_STC_LP 200             /* Store-conditional Linkage Pair    */
  82 #define ETIR_S_C_STC_LP_PSB 201         /* Store-conditional Linkage Pair with Procedure Signature */
  83 #define ETIR_S_C_STC_GBL 202            /* Store-conditional Address at global address */
  84 #define ETIR_S_C_STC_GCA 203            /* Store-conditional Code Address at global address */
  85 #define ETIR_S_C_STC_PS 204             /* Store-conditional Address at psect + offset */
  86 #define ETIR_S_C_STC_NOP_GBL 205        /* Store-conditional NOP at address of global */
  87 #define ETIR_S_C_STC_NOP_PS 206         /* Store-conditional NOP at pect + offset */
  88 #define ETIR_S_C_STC_BSR_GBL 207        /* Store-conditional BSR at global address */
  89 #define ETIR_S_C_STC_BSR_PS 208         /* Store-conditional BSR at pect + offset */
  90 #define ETIR_S_C_STC_LDA_GBL 209        /* Store-conditional LDA at global address */
  91 #define ETIR_S_C_STC_LDA_PS 210         /* Store-conditional LDA at psect + offset */
  92 #define ETIR_S_C_STC_BOH_GBL 211        /* Store-conditional BSR or Hint at global address */
  93 #define ETIR_S_C_STC_BOH_PS 212         /* Store-conditional BSR or Hint at pect + offset */
  94 #define ETIR_S_C_STC_NBH_GBL 213        /* Store-conditional NOP,BSR or HINT at global address */
  95 #define ETIR_S_C_STC_NBH_PS 214         /* Store-conditional NOP,BSR or HINT at psect + offset */
  96 #define ETIR_S_C_MAXSTCCOD 214          /* Maximum store-conditional code    */
  97
  98 /* EVAX Global symbol definition record (EGSD).  */
  99
 100 #define EGSD_S_K_ENTRIES 2      /* Offset to first entry in record      */
 101 #define EGSD_S_C_ENTRIES 2      /* Offset to first entry in record      */
 102 #define EGSD_S_C_PSC 0          /* Psect definition                     */
 103 #define EGSD_S_C_SYM 1          /* Symbol specification                 */
 104 #define EGSD_S_C_IDC 2          /* Random entity check                  */
 105 #define EGSD_S_C_SPSC 5         /* Shareable image psect definition     */
 106 #define EGSD_S_C_SYMV 6         /* Vectored (dual-valued) versions of SYM, */
 107 #define EGSD_S_C_SYMM 7         /* Masked versions of SYM,              */
 108 #define EGSD_S_C_SYMG 8         /* EGST - gst version of SYM            */
 109 #define EGSD_S_C_MAXRECTYP 8    /* Maximum entry type defined           */
 110
 111 #define EGPS_S_V_PIC    0x0001
 112 #define EGPS_S_V_LIB    0x0002
 113 #define EGPS_S_V_OVR    0x0004
 114 #define EGPS_S_V_REL    0x0008
 115 #define EGPS_S_V_GBL    0x0010
 116 #define EGPS_S_V_SHR    0x0020
 117 #define EGPS_S_V_EXE    0x0040
 118 #define EGPS_S_V_RD     0x0080
 119 #define EGPS_S_V_WRT    0x0100
 120 #define EGPS_S_V_VEC    0x0200
 121 #define EGPS_S_V_NOMOD  0x0400
 122 #define EGPS_S_V_COM    0x0800
 123
 124 #define EGSY_S_V_WEAK   0x0001
 125 #define EGSY_S_V_DEF    0x0002
 126 #define EGSY_S_V_UNI    0x0004
 127 #define EGSY_S_V_REL    0x0008
 128 #define EGSY_S_V_COMM   0x0010
 129 #define EGSY_S_V_VECEP  0x0020
 130 #define EGSY_S_V_NORM   0x0040
 131
 132 /* EVAX Module header record (EMH) definitions.  */
 133
 134 #define EMH_S_C_MHD 0           /* Main header record           */
 135 #define EMH_S_C_LNM 1           /* Language name and version    */
 136 #define EMH_S_C_SRC 2           /* Source file specification    */
 137 #define EMH_S_C_TTL 3           /* Title text of module         */
 138 #define EMH_S_C_CPR 4           /* Copyright notice             */
 139 #define EMH_S_C_MTC 5           /* Maintenance status           */
 140 #define EMH_S_C_GTX 6           /* General text                 */
 141 #define EMH_S_C_MAXHDRTYP 6     /* Maximum allowable type       */
 142
 143 /* evax-alpha.c.  */
 144
 145 extern asymbol *_bfd_evax_make_empty_symbol PARAMS ((bfd *abfd));
 146
 147 /* evax-egsd.c.  */
 148
 149 extern int _bfd_evax_slurp_egsd PARAMS ((bfd *abfd));
 150 extern int _bfd_evax_write_egsd PARAMS ((bfd *abfd));
 151
 152 /* evax-emh.c.  */
 153
 154 extern int _bfd_evax_slurp_emh PARAMS ((bfd *abfd));
 155 extern int _bfd_evax_write_emh PARAMS ((bfd *abfd));
 156 extern int _bfd_evax_slurp_eeom PARAMS ((bfd *abfd));
 157 extern int _bfd_evax_write_eeom PARAMS ((bfd *abfd));
 158
 159 /* evax-etir.c.  */
 160
 161 extern int _bfd_evax_slurp_etir PARAMS ((bfd *abfd));
 162 extern int _bfd_evax_slurp_edbg PARAMS ((bfd *abfd));
 163 extern int _bfd_evax_slurp_etbt PARAMS ((bfd *abfd));
 164
 165 extern int _bfd_evax_write_etir PARAMS ((bfd *abfd));
 166 extern int _bfd_evax_write_etbt PARAMS ((bfd *abfd));
 167 extern int _bfd_evax_write_edbg PARAMS ((bfd *abfd));
 168
 169 /* The r_type field in a reloc is one of the following values.  */
 170 #define ALPHA_R_IGNORE          0
 171 #define ALPHA_R_REFQUAD         1
 172 #define ALPHA_R_BRADDR          2
 173 #define ALPHA_R_HINT            3
 174 #define ALPHA_R_SREL16          4
 175 #define ALPHA_R_SREL32          5
 176 #define ALPHA_R_SREL64          6
 177 #define ALPHA_R_OP_PUSH         7
 178 #define ALPHA_R_OP_STORE        8
 179 #define ALPHA_R_OP_PSUB         9
 180 #define ALPHA_R_OP_PRSHIFT      10
 181 #define ALPHA_R_LINKAGE         11
 182 #define ALPHA_R_REFLONG         12
 183 #define ALPHA_R_CODEADDR        13
 184
 185 /* Object language definitions.  */
 186
 187 #define EOBJ_S_C_EMH 8            /*EVAX module header record         */
 188 #define EOBJ_S_C_EEOM 9           /*EVAX end of module record         */
 189 #define EOBJ_S_C_EGSD 10          /*EVAX global symbol definition record  */
 190 #define EOBJ_S_C_ETIR 11          /*EVAX text information record      */
 191 #define EOBJ_S_C_EDBG 12          /*EVAX Debugger information record  */
 192 #define EOBJ_S_C_ETBT 13          /*EVAX Traceback information record  */
 193 #define EOBJ_S_C_MAXRECTYP 13     /*Last assigned record type         */
 194 #define EOBJ_S_K_SUBTYP 4
 195 #define EOBJ_S_C_SUBTYP 4
 196 #define EOBJ_S_C_MAXRECSIZ 8192   /*Maximum legal record size         */
 197 #define EOBJ_S_C_STRLVL 2         /*Structure level                   */
 198 #define EOBJ_S_C_SYMSIZ 64        /*Maxymum symbol length             */
 199 #define EOBJ_S_C_STOREPLIM -1     /*Maximum repeat count on store commands  */
 200 #define EOBJ_S_C_PSCALILIM 16     /*Maximum p-sect alignment          */
 201
 202 /* Miscellaneous definitions.  */
 203
 204 #if __GNUC__
 205 typedef unsigned long long uquad;
 206 #else
 207 typedef unsigned long uquad;
 208 #endif
 209
 210 #define MAX_OUTREC_SIZE 4096
 211 #define MIN_OUTREC_LUFT 64
 212
 213 typedef struct _evax_section {
 214   unsigned char *contents;
 215   bfd_vma offset;
 216   bfd_size_type size;
 217   struct _evax_section *next;
 218 } evax_section;
 219
 220 extern boolean _bfd_save_evax_section
 221   PARAMS ((bfd *abfd, asection *section, PTR data, file_ptr offset,
 222            bfd_size_type count));
 223 extern evax_section *_bfd_get_evax_section PARAMS ((bfd *abfd, int index));
 224
 225 typedef struct _evax_reloc {
 226   struct _evax_reloc *next;
 227   arelent *reloc;
 228   asection *section;
 229 } evax_reloc;
 230
 231 /* evax module header  */
 232
 233 struct emh_struc {
 234   int emh_b_strlvl;
 235   long emh_l_arch1;
 236   long emh_l_arch2;
 237   long emh_l_recsiz;
 238   char *emh_t_name;
 239   char *emh_t_version;
 240   char *emh_t_date;
 241   char *emh_c_lnm;
 242   char *emh_c_src;
 243   char *emh_c_ttl;
 244 };
 245
 246
 247 /* evax end of module  */
 248
 249 struct eeom_struc {
 250   long eeom_l_total_lps;
 251   unsigned char eeom_b_comcod;
 252   boolean eeom_has_transfer;
 253   unsigned char eeom_b_tfrflg;
 254   long eeom_l_psindx;
 255   long eeom_l_tfradr;
 256 };
 257
 258 enum file_format_enum { FF_UNKNOWN, FF_FOREIGN, FF_NATIVE };
 259
 260 typedef struct evax_symbol_struct {
 261   struct bfd_hash_entry bfd_hash;
 262   asymbol *symbol;
 263 } evax_symbol_entry;
 264
 265 /* stack value for push/pop commands  */
 266
 267 struct stack_struct {
 268   uquad value;
 269   int psect;
 270 };
 271 #define STACKSIZE 50
 272
 273 /* location stack definitions for CTL_DFLOC, CTL_STLOC, and CTL_STKDL  */
 274
 275 struct location_struct {
 276   unsigned long value;
 277   int psect;
 278 };
 279 #define LOCATION_SAVE_SIZE 32
 280
 281 #define EVAX_SECTION_COUNT 32
 282
 283 struct evax_private_data_struct {
 284   boolean fixup_done;                   /* Flag to indicate if all
 285                                            section pointers and PRIV(sections)
 286                                            are set up correctly  */
 287   unsigned char *evax_buf;              /* buffer to record  */
 288   int buf_size;                         /* max size of buffer  */
 289   unsigned char *evax_rec;              /* actual record ptr  */
 290   int rec_length;                       /* remaining record length  */
 291   int rec_size;                         /* actual record size  */
 292   int rec_type;                         /* actual record type  */
 293   enum file_format_enum file_format;
 294
 295   struct emh_struc emh_data;            /* data from EMH record  */
 296   struct eeom_struc eeom_data;          /* data from EEOM record  */
 297   int egsd_sec_count;                   /* # of EGSD sections  */
 298   asection **sections;                  /* vector of EGSD sections  */
 299   int egsd_sym_count;                   /* # of EGSD symbols  */
 300   asymbol **symbols;                    /* vector of EGSD symbols  */
 301   struct proc_value *procedure;
 302
 303   struct stack_struct *stack;
 304   int stackptr;
 305
 306   evax_section *evax_section_table[EVAX_SECTION_COUNT];
 307
 308   struct bfd_hash_table *evax_symbol_table;
 309   struct symbol_cache_entry **symcache;
 310   int symnum;
 311
 312   struct location_struct *location_stack;
 313
 314   unsigned char *image_ptr;             /* a pointer to section->contents */
 315
 316   unsigned char pdsc[8];                /* procedure descriptor */
 317
 318   /* Output routine storage  */
 319
 320   unsigned char *output_buf;            /* output data  */
 321   int push_level;
 322   int pushed_size;
 323   int length_pos;
 324   int output_size;
 325   int output_alignment;
 326
 327   /* linkage index counter
 328    used by conditional store commands (ETIR_S_C_STC_)  */
 329
 330   int evax_linkage_index;
 331
 332   /* see tc-alpha.c of gas for a description.  */
 333   int flag_hash_long_names;     /* -+, hash instead of truncate */
 334   int flag_show_after_trunc;    /* -H, show hashing/truncation */
 335 };
 336
 337 #define PRIV(name)      ((struct evax_private_data_struct *)abfd->tdata.any)->name
 338
 339 #if EVAX_DEBUG
 340 extern void _bfd_evax_debug PARAMS((int level, char *format, ...));
 341 extern void _bfd_hexdump
 342   PARAMS ((int level, unsigned char *ptr, int size, int offset));
 343
 344 #define evax_debug _bfd_evax_debug
 345
 346 #endif
 347
 348 extern struct bfd_hash_entry *_bfd_evax_hash_newfunc
 349   PARAMS ((struct bfd_hash_entry *entry, struct bfd_hash_table *table,
 350            const char *string));
 351 extern void _bfd_evax_get_header_values
 352   PARAMS ((bfd *abfd, unsigned char *buf, int *type, int *length));
 353 extern int _bfd_evax_get_record PARAMS ((bfd *abfd));
 354 extern int _bfd_evax_next_record PARAMS ((bfd *abfd));
 355
 356 extern char *_bfd_evax_save_sized_string PARAMS ((char *str, int size));
 357 extern char *_bfd_evax_save_counted_string PARAMS ((char *ptr));
 358 extern void _bfd_evax_push PARAMS ((bfd *abfd, uquad val, int psect));
 359 extern uquad _bfd_evax_pop PARAMS ((bfd *abfd, int *psect));
 360
 361 extern boolean _bfd_save_evax_section
 362   PARAMS ((bfd *abfd, asection *section, PTR data, file_ptr offset,
 363            bfd_size_type count));
 364 extern void _bfd_evax_output_begin
 365   PARAMS ((bfd *abfd, int rectype, int rechead));
 366 extern void _bfd_evax_output_alignment PARAMS ((bfd *abfd, int alignto));
 367 extern void _bfd_evax_output_push PARAMS ((bfd *abfd));
 368 extern void _bfd_evax_output_pop PARAMS ((bfd *abfd));
 369 extern void _bfd_evax_output_flush PARAMS ((bfd *abfd));
 370 extern void _bfd_evax_output_end PARAMS ((bfd *abfd));
 371 extern int _bfd_evax_output_check PARAMS ((bfd *abfd, int size));
 372 extern void _bfd_evax_output_byte PARAMS ((bfd *abfd, unsigned int value));
 373 extern void _bfd_evax_output_short PARAMS ((bfd *abfd, unsigned int value));
 374 extern void _bfd_evax_output_long PARAMS ((bfd *abfd, unsigned long value));
 375 extern void _bfd_evax_output_quad PARAMS ((bfd *abfd, uquad value));
 376 extern void _bfd_evax_output_counted PARAMS ((bfd *abfd, char *value));
 377 extern void _bfd_evax_output_dump PARAMS ((bfd *abfd, unsigned char *data,
 378                                            int length));
 379 extern void _bfd_evax_output_fill PARAMS ((bfd *abfd, int value, int length));
 380 extern char *_bfd_evax_length_hash_symbol PARAMS ((bfd *abfd, const char *in));
 381
 382 #endif /* EVAX_H */