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1 227 jeremybenn
/* Internal format of COFF object file data structures, for GNU BFD.
2
   This file is part of BFD, the Binary File Descriptor library.
3
 
4
   Copyright 1999, 2000, 2001, 2002, 2003, 2004. 2005, 2006, 2007, 2009
5
   Free Software Foundation, Inc.
6
 
7
   This program is free software; you can redistribute it and/or modify
8
   it under the terms of the GNU General Public License as published by
9
   the Free Software Foundation; either version 2 of the License, or
10
   (at your option) any later version.
11
 
12
   This program is distributed in the hope that it will be useful,
13
   but WITHOUT ANY WARRANTY; without even the implied warranty of
14
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15
   GNU General Public License for more details.
16
 
17
   You should have received a copy of the GNU General Public License
18
   along with this program; if not, write to the Free Software
19
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
20
 
21
#ifndef GNU_COFF_INTERNAL_H
22
#define GNU_COFF_INTERNAL_H 1
23
 
24
/* First, make "signed char" work, even on old compilers. */
25
#ifndef signed
26
#ifndef __STDC__
27
#define signed                  /**/
28
#endif
29
#endif
30
 
31
/********************** FILE HEADER **********************/
32
 
33
/* extra stuff in a PE header. */
34
 
35
struct internal_extra_pe_filehdr
36
{
37
  /* DOS header data follows for PE stuff */
38
  unsigned short e_magic;       /* Magic number, 0x5a4d */
39
  unsigned short e_cblp;        /* Bytes on last page of file, 0x90 */
40
  unsigned short e_cp;          /* Pages in file, 0x3 */
41
  unsigned short e_crlc;        /* Relocations, 0x0 */
42
  unsigned short e_cparhdr;     /* Size of header in paragraphs, 0x4 */
43
  unsigned short e_minalloc;    /* Minimum extra paragraphs needed, 0x0 */
44
  unsigned short e_maxalloc;    /* Maximum extra paragraphs needed, 0xFFFF */
45
  unsigned short e_ss;          /* Initial (relative) SS value, 0x0 */
46
  unsigned short e_sp;          /* Initial SP value, 0xb8 */
47
  unsigned short e_csum;        /* Checksum, 0x0 */
48
  unsigned short e_ip;          /* Initial IP value, 0x0 */
49
  unsigned short e_cs;          /* Initial (relative) CS value, 0x0 */
50
  unsigned short e_lfarlc;      /* File address of relocation table, 0x40 */
51
  unsigned short e_ovno;        /* Overlay number, 0x0 */
52
  unsigned short e_res[4];      /* Reserved words, all 0x0 */
53
  unsigned short e_oemid;       /* OEM identifier (for e_oeminfo), 0x0 */
54
  unsigned short e_oeminfo;     /* OEM information; e_oemid specific, 0x0 */
55
  unsigned short e_res2[10];    /* Reserved words, all 0x0 */
56
  bfd_vma  e_lfanew;            /* File address of new exe header, 0x80 */
57
  unsigned long dos_message[16]; /* text which always follows dos header */
58
  bfd_vma  nt_signature;        /* required NT signature, 0x4550 */
59
};
60
 
61
#define GO32_STUBSIZE 2048
62
 
63
struct internal_filehdr
64
{
65
  struct internal_extra_pe_filehdr pe;
66
 
67
  /* coff-stgo32 EXE stub header before BFD tdata has been allocated.
68
     Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards.
69
 
70
     F_GO32STUB is set iff go32stub contains a valid data.  Artifical headers
71
     created in BFD have no pre-set go32stub.  */
72
  char go32stub[GO32_STUBSIZE];
73
 
74
  /* Standard coff internal info.  */
75
  unsigned short f_magic;       /* magic number                 */
76
  unsigned short f_nscns;       /* number of sections           */
77
  long f_timdat;                /* time & date stamp            */
78
  bfd_vma f_symptr;             /* file pointer to symtab       */
79
  long f_nsyms;                 /* number of symtab entries     */
80
  unsigned short f_opthdr;      /* sizeof(optional hdr)         */
81
  unsigned short f_flags;       /* flags                        */
82
  unsigned short f_target_id;   /* (TI COFF specific)           */
83
};
84
 
85
 
86
/* Bits for f_flags:
87
        F_RELFLG        relocation info stripped from file
88
        F_EXEC          file is executable (no unresolved external references)
89
        F_LNNO          line numbers stripped from file
90
        F_LSYMS         local symbols stripped from file
91
        F_AR16WR        file is 16-bit little-endian
92
        F_AR32WR        file is 32-bit little-endian
93
        F_AR32W         file is 32-bit big-endian
94
        F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
95
        F_SHROBJ        rs/6000 aix: file is a shared object
96
        F_DLL           PE format DLL
97
        F_GO32STUB      Field go32stub contains valid data.  */
98
 
99
#define F_RELFLG        (0x0001)
100
#define F_EXEC          (0x0002)
101
#define F_LNNO          (0x0004)
102
#define F_LSYMS         (0x0008)
103
#define F_AR16WR        (0x0080)
104
#define F_AR32WR        (0x0100)
105
#define F_AR32W         (0x0200)
106
#define F_DYNLOAD       (0x1000)
107
#define F_SHROBJ        (0x2000)
108
#define F_DLL           (0x2000)
109
#define F_GO32STUB      (0x4000)
110
 
111
/* Extra structure which is used in the optional header.  */
112
typedef struct _IMAGE_DATA_DIRECTORY
113
{
114
  bfd_vma VirtualAddress;
115
  long    Size;
116
}  IMAGE_DATA_DIRECTORY;
117
#define PE_EXPORT_TABLE                 0
118
#define PE_IMPORT_TABLE                 1
119
#define PE_RESOURCE_TABLE               2
120
#define PE_EXCEPTION_TABLE              3
121
#define PE_CERTIFICATE_TABLE            4
122
#define PE_BASE_RELOCATION_TABLE        5
123
#define PE_DEBUG_DATA                   6
124
#define PE_ARCHITECTURE                 7
125
#define PE_GLOBAL_PTR                   8
126
#define PE_TLS_TABLE                    9
127
#define PE_LOAD_CONFIG_TABLE            10
128
#define PE_BOUND_IMPORT_TABLE           11
129
#define PE_IMPORT_ADDRESS_TABLE         12
130
#define PE_DELAY_IMPORT_DESCRIPTOR      13
131
#define PE_CLR_RUNTIME_HEADER           14
132
/* DataDirectory[15] is currently reserved, so no define. */
133
#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
134
 
135
/* Default image base for NT.  */
136
#define NT_EXE_IMAGE_BASE 0x400000
137
#define NT_DLL_IMAGE_BASE 0x10000000
138
 
139
/* Default image base for BeOS. */
140
#define BEOS_EXE_IMAGE_BASE 0x80000000
141
#define BEOS_DLL_IMAGE_BASE 0x10000000
142
 
143
/* Extra stuff in a PE aouthdr */
144
 
145
#define PE_DEF_SECTION_ALIGNMENT 0x1000
146
#ifndef PE_DEF_FILE_ALIGNMENT
147
# define PE_DEF_FILE_ALIGNMENT 0x200
148
#endif
149
 
150
struct internal_extra_pe_aouthdr
151
{
152
  /* FIXME: The following entries are in AOUTHDR.  But they aren't
153
     available internally in bfd.  We add them here so that objdump
154
     can dump them.  */
155
  /* The state of the image file  */
156
  short Magic;
157
  /* Linker major version number */
158
  char MajorLinkerVersion;
159
  /* Linker minor version number  */
160
  char MinorLinkerVersion;
161
  /* Total size of all code sections  */
162
  long SizeOfCode;
163
  /* Total size of all initialized data sections  */
164
  long SizeOfInitializedData;
165
  /* Total size of all uninitialized data sections  */
166
  long SizeOfUninitializedData;
167
  /* Address of entry point relative to image base.  */
168
  bfd_vma AddressOfEntryPoint;
169
  /* Address of the first code section relative to image base.  */
170
  bfd_vma BaseOfCode;
171
  /* Address of the first data section relative to image base.  */
172
  bfd_vma BaseOfData;
173
 
174
  /* PE stuff  */
175
  bfd_vma ImageBase;            /* address of specific location in memory that
176
                                   file is located, NT default 0x10000 */
177
 
178
  bfd_vma SectionAlignment;     /* section alignment default 0x1000 */
179
  bfd_vma FileAlignment;        /* file alignment default 0x200 */
180
  short   MajorOperatingSystemVersion; /* minimum version of the operating */
181
  short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
182
  short   MajorImageVersion;    /* user defineable field to store version of */
183
  short   MinorImageVersion;    /* exe or dll being created, default to 0 */
184
  short   MajorSubsystemVersion; /* minimum subsystem version required to */
185
  short   MinorSubsystemVersion; /* run exe; default to 3.1 */
186
  long    Reserved1;            /* seems to be 0 */
187
  long    SizeOfImage;          /* size of memory to allocate for prog */
188
  long    SizeOfHeaders;        /* size of PE header and section table */
189
  long    CheckSum;             /* set to 0 */
190
  short   Subsystem;
191
 
192
  /* type of subsystem exe uses for user interface,
193
     possible values:
194
     1 - NATIVE   Doesn't require a subsystem
195
     2 - WINDOWS_GUI runs in Windows GUI subsystem
196
     3 - WINDOWS_CUI runs in Windows char sub. (console app)
197
     5 - OS2_CUI runs in OS/2 character subsystem
198
     7 - POSIX_CUI runs in Posix character subsystem */
199
  unsigned short DllCharacteristics; /* flags for DLL init  */
200
  bfd_vma SizeOfStackReserve;   /* amount of memory to reserve  */
201
  bfd_vma SizeOfStackCommit;    /* amount of memory initially committed for
202
                                   initial thread's stack, default is 0x1000 */
203
  bfd_vma SizeOfHeapReserve;    /* amount of virtual memory to reserve and */
204
  bfd_vma SizeOfHeapCommit;     /* commit, don't know what to defaut it to */
205
  long    LoaderFlags;          /* can probably set to 0 */
206
  long    NumberOfRvaAndSizes;  /* number of entries in next entry, 16 */
207
  IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
208
};
209
 
210
/********************** AOUT "OPTIONAL HEADER" **********************/
211
struct internal_aouthdr
212
{
213
  short magic;                  /* type of file                         */
214
  short vstamp;                 /* version stamp                        */
215
  bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
216
  bfd_vma dsize;                /* initialized data "  "                */
217
  bfd_vma bsize;                /* uninitialized data "   "             */
218
  bfd_vma entry;                /* entry pt.                            */
219
  bfd_vma text_start;           /* base of text used for this file */
220
  bfd_vma data_start;           /* base of data used for this file */
221
 
222
  /* i960 stuff */
223
  unsigned long tagentries;     /* number of tag entries to follow */
224
 
225
  /* RS/6000 stuff */
226
  bfd_vma o_toc;                /* address of TOC                       */
227
  short o_snentry;              /* section number for entry point */
228
  short o_sntext;               /* section number for text      */
229
  short o_sndata;               /* section number for data      */
230
  short o_sntoc;                /* section number for toc       */
231
  short o_snloader;             /* section number for loader section */
232
  short o_snbss;                /* section number for bss       */
233
  short o_algntext;             /* max alignment for text       */
234
  short o_algndata;             /* max alignment for data       */
235
  short o_modtype;              /* Module type field, 1R,RE,RO  */
236
  short o_cputype;              /* Encoded CPU type             */
237
  bfd_vma o_maxstack;   /* max stack size allowed.      */
238
  bfd_vma o_maxdata;    /* max data size allowed.       */
239
 
240
  /* ECOFF stuff */
241
  bfd_vma bss_start;            /* Base of bss section.         */
242
  bfd_vma gp_value;             /* GP register value.           */
243
  unsigned long gprmask;        /* General registers used.      */
244
  unsigned long cprmask[4];     /* Coprocessor registers used.  */
245
  unsigned long fprmask;        /* Floating pointer registers used.  */
246
 
247
  /* Apollo stuff */
248
  long o_inlib;                 /* inlib data */
249
  long o_sri;                   /* Static Resource Information */
250
  long vid[2];                  /* Version id */
251
 
252
  struct internal_extra_pe_aouthdr pe;
253
};
254
 
255
/********************** STORAGE CLASSES **********************/
256
 
257
/* This used to be defined as -1, but now n_sclass is unsigned.  */
258
#define C_EFCN          0xff    /* physical end of function     */
259
#define C_NULL          0
260
#define C_AUTO          1       /* automatic variable           */
261
#define C_EXT           2       /* external symbol              */
262
#define C_STAT          3       /* static                       */
263
#define C_REG           4       /* register variable            */
264
#define C_EXTDEF        5       /* external definition          */
265
#define C_LABEL         6       /* label                        */
266
#define C_ULABEL        7       /* undefined label              */
267
#define C_MOS           8       /* member of structure          */
268
#define C_ARG           9       /* function argument            */
269
#define C_STRTAG        10      /* structure tag                */
270
#define C_MOU           11      /* member of union              */
271
#define C_UNTAG         12      /* union tag                    */
272
#define C_TPDEF         13      /* type definition              */
273
#define C_USTATIC       14      /* undefined static             */
274
#define C_ENTAG         15      /* enumeration tag              */
275
#define C_MOE           16      /* member of enumeration        */
276
#define C_REGPARM       17      /* register parameter           */
277
#define C_FIELD         18      /* bit field                    */
278
#define C_AUTOARG       19      /* auto argument                */
279
#define C_LASTENT       20      /* dummy entry (end of block)   */
280
#define C_BLOCK         100     /* ".bb" or ".eb"               */
281
#define C_FCN           101     /* ".bf" or ".ef"               */
282
#define C_EOS           102     /* end of structure             */
283
#define C_FILE          103     /* file name                    */
284
#define C_LINE          104     /* line # reformatted as symbol table entry */
285
#define C_ALIAS         105     /* duplicate tag                */
286
#define C_HIDDEN        106     /* ext symbol in dmert public lib */
287
#define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
288
 
289
/* New storage classes for TI COFF */
290
#define C_UEXT          19      /* Tentative external definition */
291
#define C_STATLAB       20      /* Static load time label */
292
#define C_EXTLAB        21      /* External load time label */
293
#define C_SYSTEM        23      /* System Wide variable */
294
 
295
/* New storage classes for WINDOWS_NT   */
296
#define C_SECTION       104     /* section name */
297
#define C_NT_WEAK       105     /* weak external */
298
 
299
 /* New storage classes for 80960 */
300
 
301
/* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
302
#define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
303
 
304
#define C_SCALL         107     /* Procedure reachable via system call */
305
#define C_LEAFEXT       108     /* External leaf */
306
#define C_LEAFSTAT      113     /* Static leaf */
307
#define C_OPTVAR        109     /* Optimized variable           */
308
#define C_DEFINE        110     /* Preprocessor #define         */
309
#define C_PRAGMA        111     /* Advice to compiler or linker */
310
#define C_SEGMENT       112     /* 80960 segment name           */
311
 
312
  /* Storage classes for m88k */
313
#define C_SHADOW        107     /* shadow symbol                */
314
#define C_VERSION       108     /* coff version symbol          */
315
 
316
 /* New storage classes for RS/6000 */
317
#define C_HIDEXT        107     /* Un-named external symbol */
318
#define C_BINCL         108     /* Marks beginning of include file */
319
#define C_EINCL         109     /* Marks ending of include file */
320
#define C_AIX_WEAKEXT   111     /* AIX definition of C_WEAKEXT.  */
321
 
322
#if defined _AIX52 || defined AIX_WEAK_SUPPORT
323
#undef C_WEAKEXT
324
#define C_WEAKEXT       C_AIX_WEAKEXT
325
#endif
326
 
327
 /* storage classes for stab symbols for RS/6000 */
328
#define C_GSYM          (0x80)
329
#define C_LSYM          (0x81)
330
#define C_PSYM          (0x82)
331
#define C_RSYM          (0x83)
332
#define C_RPSYM         (0x84)
333
#define C_STSYM         (0x85)
334
#define C_TCSYM         (0x86)
335
#define C_BCOMM         (0x87)
336
#define C_ECOML         (0x88)
337
#define C_ECOMM         (0x89)
338
#define C_DECL          (0x8c)
339
#define C_ENTRY         (0x8d)
340
#define C_FUN           (0x8e)
341
#define C_BSTAT         (0x8f)
342
#define C_ESTAT         (0x90)
343
 
344
/* Storage classes for Thumb symbols */
345
#define C_THUMBEXT      (128 + C_EXT)           /* 130 */
346
#define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
347
#define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
348
#define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
349
#define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
350
 
351
/* True if XCOFF symbols of class CLASS have auxillary csect information.  */
352
#define CSECT_SYM_P(CLASS) \
353
  ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
354
 
355
/********************** SECTION HEADER **********************/
356
 
357
#define SCNNMLEN (8)
358
 
359
struct internal_scnhdr
360
{
361
  char s_name[SCNNMLEN];        /* section name                 */
362
 
363
  /* Physical address, aliased s_nlib.
364
     In the pei format, this field is the virtual section size
365
     (the size of the section after being loaded int memory),
366
     NOT the physical address.  */
367
  bfd_vma s_paddr;
368
 
369
  bfd_vma s_vaddr;              /* virtual address              */
370
  bfd_vma s_size;               /* section size                 */
371
  bfd_vma s_scnptr;             /* file ptr to raw data for section */
372
  bfd_vma s_relptr;             /* file ptr to relocation       */
373
  bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
374
  unsigned long s_nreloc;       /* number of relocation entries */
375
  unsigned long s_nlnno;        /* number of line number entries*/
376
  long s_flags;                 /* flags                        */
377
  long s_align;                 /* used on I960                 */
378
  unsigned char s_page;         /* TI COFF load page            */
379
};
380
 
381
/* s_flags "type".  */
382
#define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
383
#define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
384
#define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
385
#define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
386
#define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
387
#define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
388
                                                                             loaded; reloc & lineno entries processed normally */
389
#define STYP_TEXT        (0x0020)       /* section contains text only */
390
#define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
391
                                                                             will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
392
                                                                             update all process invocations. */
393
#define STYP_DATA        (0x0040)       /* section contains data only */
394
#define STYP_BSS         (0x0080)       /* section contains bss only */
395
#define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
396
#define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
397
#define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
398
#define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
399
#define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
400
#define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
401
                                           wherever padding is necessary and there is a
402
                                           word of contiguous bytes beginning on a word
403
                                           boundary. */
404
 
405
#define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
406
 
407
 
408
/********************** LINE NUMBERS **********************/
409
 
410
/* 1 line number entry for every "breakpointable" source line in a section.
411
   Line numbers are grouped on a per function basis; first entry in a function
412
   grouping will have l_lnno = 0 and in place of physical address will be the
413
   symbol table index of the function name.  */
414
 
415
struct internal_lineno
416
{
417
  union
418
  {
419
    bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
420
    bfd_signed_vma l_paddr;             /* (physical) address of line number    */
421
  }     l_addr;
422
  unsigned long l_lnno;         /* line number          */
423
};
424
 
425
/********************** SYMBOLS **********************/
426
 
427
#define SYMNMLEN        8       /* # characters in a symbol name        */
428
#define FILNMLEN        14      /* # characters in a file name          */
429
#define DIMNUM          4       /* # array dimensions in auxiliary entry */
430
 
431
struct internal_syment
432
{
433
  union
434
  {
435
    char _n_name[SYMNMLEN];     /* old COFF version             */
436
    struct
437
    {
438
      bfd_hostptr_t _n_zeroes;  /* new == 0                     */
439
      bfd_hostptr_t _n_offset;  /* offset into string table     */
440
    }      _n_n;
441
    char *_n_nptr[2];           /* allows for overlaying        */
442
  }     _n;
443
  bfd_vma n_value;              /* value of symbol              */
444
  short n_scnum;                /* section number               */
445
  unsigned short n_flags;       /* copy of flags from filhdr    */
446
  unsigned short n_type;        /* type and derived type        */
447
  unsigned char n_sclass;       /* storage class                */
448
  unsigned char n_numaux;       /* number of aux. entries       */
449
};
450
 
451
#define n_name          _n._n_name
452
#define n_zeroes        _n._n_n._n_zeroes
453
#define n_offset        _n._n_n._n_offset
454
 
455
/* Relocatable symbols have number of the section in which they are defined,
456
   or one of the following:  */
457
 
458
#define N_UNDEF ((short)0)      /* undefined symbol */
459
#define N_ABS   ((short)-1)     /* value of symbol is absolute */
460
#define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
461
#define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
462
#define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
463
 
464
/* Type of a symbol, in low N bits of the word.  */
465
 
466
#define T_NULL          0
467
#define T_VOID          1       /* function argument (only used by compiler) */
468
#define T_CHAR          2       /* character            */
469
#define T_SHORT         3       /* short integer        */
470
#define T_INT           4       /* integer              */
471
#define T_LONG          5       /* long integer         */
472
#define T_FLOAT         6       /* floating point       */
473
#define T_DOUBLE        7       /* double word          */
474
#define T_STRUCT        8       /* structure            */
475
#define T_UNION         9       /* union                */
476
#define T_ENUM          10      /* enumeration          */
477
#define T_MOE           11      /* member of enumeration*/
478
#define T_UCHAR         12      /* unsigned character   */
479
#define T_USHORT        13      /* unsigned short       */
480
#define T_UINT          14      /* unsigned integer     */
481
#define T_ULONG         15      /* unsigned long        */
482
#define T_LNGDBL        16      /* long double          */
483
 
484
/* Derived types, in n_type.  */
485
 
486
#define DT_NON          (0)     /* no derived type */
487
#define DT_PTR          (1)     /* pointer */
488
#define DT_FCN          (2)     /* function */
489
#define DT_ARY          (3)     /* array */
490
 
491
#define BTYPE(x)        ((x) & N_BTMASK)
492
#define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
493
 
494
#define ISPTR(x) \
495
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
496
#define ISFCN(x) \
497
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
498
#define ISARY(x) \
499
  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
500
#define ISTAG(x) \
501
  ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
502
#define DECREF(x) \
503
  ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
504
 
505
union internal_auxent
506
{
507
  struct
508
  {
509
 
510
    union
511
    {
512
      long l;                   /* str, un, or enum tag indx */
513
      struct coff_ptr_struct *p;
514
    }     x_tagndx;
515
 
516
    union
517
    {
518
      struct
519
      {
520
        unsigned short x_lnno;  /* declaration line number */
521
        unsigned short x_size;  /* str/union/array size */
522
      }      x_lnsz;
523
      long x_fsize;             /* size of function */
524
    }     x_misc;
525
 
526
    union
527
    {
528
      struct
529
      {                         /* if ISFCN, tag, or .bb */
530
        bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
531
        union
532
        {                       /* entry ndx past block end */
533
          long l;
534
          struct coff_ptr_struct *p;
535
        }     x_endndx;
536
      }      x_fcn;
537
 
538
      struct
539
      {                         /* if ISARY, up to 4 dimen. */
540
        unsigned short x_dimen[DIMNUM];
541
      }      x_ary;
542
    }     x_fcnary;
543
 
544
    unsigned short x_tvndx;     /* tv index */
545
  }      x_sym;
546
 
547
  union
548
  {
549
    char x_fname[FILNMLEN];
550
    struct
551
    {
552
      long x_zeroes;
553
      long x_offset;
554
    }      x_n;
555
  }     x_file;
556
 
557
  struct
558
  {
559
    long x_scnlen;              /* section length */
560
    unsigned short x_nreloc;    /* # relocation entries */
561
    unsigned short x_nlinno;    /* # line numbers */
562
    unsigned long x_checksum;   /* section COMDAT checksum for PE */
563
    unsigned short x_associated; /* COMDAT associated section index for PE */
564
    unsigned char x_comdat;     /* COMDAT selection number for PE */
565
  }      x_scn;
566
 
567
  struct
568
  {
569
    long x_tvfill;              /* tv fill value */
570
    unsigned short x_tvlen;     /* length of .tv */
571
    unsigned short x_tvran[2];  /* tv range */
572
  }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
573
 
574
  /******************************************
575
   * RS/6000-specific auxent - last auxent for every external symbol
576
   ******************************************/
577
  struct
578
  {
579
    union
580
      {                         /* csect length or enclosing csect */
581
        bfd_signed_vma l;
582
        struct coff_ptr_struct *p;
583
      } x_scnlen;
584
    long x_parmhash;            /* parm type hash index */
585
    unsigned short x_snhash;    /* sect num with parm hash */
586
    unsigned char x_smtyp;      /* symbol align and type */
587
    /* 0-4 - Log 2 of alignment */
588
    /* 5-7 - symbol type */
589
    unsigned char x_smclas;     /* storage mapping class */
590
    long x_stab;                /* dbx stab info index */
591
    unsigned short x_snstab;    /* sect num with dbx stab */
592
  }      x_csect;               /* csect definition information */
593
 
594
/* x_smtyp values:  */
595
 
596
#define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
597
#define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
598
/* Symbol type values:  */
599
#define XTY_ER  0                /* External reference */
600
#define XTY_SD  1               /* Csect definition */
601
#define XTY_LD  2               /* Label definition */
602
#define XTY_CM  3               /* .BSS */
603
#define XTY_EM  4               /* Error message */
604
#define XTY_US  5               /* "Reserved for internal use" */
605
 
606
/* x_smclas values:  */
607
 
608
#define XMC_PR  0                /* Read-only program code */
609
#define XMC_RO  1               /* Read-only constant */
610
#define XMC_DB  2               /* Read-only debug dictionary table */
611
#define XMC_TC  3               /* Read-write general TOC entry */
612
#define XMC_UA  4               /* Read-write unclassified */
613
#define XMC_RW  5               /* Read-write data */
614
#define XMC_GL  6               /* Read-only global linkage */
615
#define XMC_XO  7               /* Read-only extended operation */
616
#define XMC_SV  8               /* Read-only supervisor call */
617
#define XMC_BS  9               /* Read-write BSS */
618
#define XMC_DS  10              /* Read-write descriptor csect */
619
#define XMC_UC  11              /* Read-write unnamed Fortran common */
620
#define XMC_TI  12              /* Read-only traceback index csect */
621
#define XMC_TB  13              /* Read-only traceback table csect */
622
/*              14      ??? */
623
#define XMC_TC0 15              /* Read-write TOC anchor */
624
#define XMC_TD  16              /* Read-write data in TOC */
625
 
626
  /******************************************
627
   *  I960-specific *2nd* aux. entry formats
628
   ******************************************/
629
  struct
630
  {
631
    /* This is a very old typo that keeps getting propagated. */
632
#define x_stdindx x_stindx
633
    long x_stindx;              /* sys. table entry */
634
  }      x_sc;                  /* system call entry */
635
 
636
  struct
637
  {
638
    unsigned long x_balntry;    /* BAL entry point */
639
  }      x_bal;                 /* BAL-callable function */
640
 
641
  struct
642
  {
643
    unsigned long x_timestamp;  /* time stamp */
644
    char x_idstring[20];        /* producer identity string */
645
  }      x_ident;               /* Producer ident info */
646
 
647
};
648
 
649
/********************** RELOCATION DIRECTIVES **********************/
650
 
651
struct internal_reloc
652
{
653
  bfd_vma r_vaddr;              /* Virtual address of reference */
654
  long r_symndx;                /* Index into symbol table      */
655
  unsigned short r_type;        /* Relocation type              */
656
  unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
657
  unsigned char r_extern;       /* Used by ECOFF                */
658
  unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
659
};
660
 
661
/* X86-64 relocations.  */
662
#define R_AMD64_ABS              0 /* Reference is absolute, no relocation is necessary.  */
663
#define R_AMD64_DIR64            1 /* 64-bit address (VA).  */
664
#define R_AMD64_DIR32            2 /* 32-bit address (VA) R_DIR32.  */
665
#define R_AMD64_IMAGEBASE        3 /* 32-bit absolute ref w/o base R_IMAGEBASE.  */
666
#define R_AMD64_PCRLONG          4 /* 32-bit relative address from byte following reloc R_PCRLONG.  */
667
#define R_AMD64_PCRLONG_1        5 /* 32-bit relative address from byte distance 1 from reloc.  */
668
#define R_AMD64_PCRLONG_2        6 /* 32-bit relative address from byte distance 2 from reloc.  */
669
#define R_AMD64_PCRLONG_3        7 /* 32-bit relative address from byte distance 3 from reloc.  */
670
#define R_AMD64_PCRLONG_4        8 /* 32-bit relative address from byte distance 4 from reloc.  */
671
#define R_AMD64_PCRLONG_5        9 /* 32-bit relative address from byte distance 5 from reloc.  */
672
#define R_AMD64_SECTION         10 /* Section index.  */
673
#define R_AMD64_SECREL          11 /* 32 bit offset from base of section containing target R_SECREL.  */
674
#define R_AMD64_SECREL7         12 /* 7 bit unsigned offset from base of section containing target.  */
675
#define R_AMD64_TOKEN           13 /* 32 bit metadata token.  */
676
#define R_AMD64_PCRQUAD         14 /* Pseude PC64 relocation - Note: not specified by MS/AMD but need for gas pc-relative 64bit wide relocation generated by ELF.  */
677
 
678
/* i386 Relocations.  */
679
 
680
#define R_DIR16          1
681
#define R_REL24          5
682
#define R_DIR32          6
683
#define R_IMAGEBASE      7
684
#define R_SECREL32      11
685
#define R_RELBYTE       15
686
#define R_RELWORD       16
687
#define R_RELLONG       17
688
#define R_PCRBYTE       18
689
#define R_PCRWORD       19
690
#define R_PCRLONG       20
691
#define R_PCR24         21
692
#define R_IPRSHORT      24
693
#define R_IPRLONG       26
694
#define R_GETSEG        29
695
#define R_GETPA         30
696
#define R_TAGWORD       31
697
#define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
698
#define R_PARTLS16      32
699
#define R_PARTMS8       33
700
 
701
#define R_PCR16L       128
702
#define R_PCR26L       129
703
#define R_VRT16        130
704
#define R_HVRT16       131
705
#define R_LVRT16       132
706
#define R_VRT32        133
707
 
708
 
709
/* This reloc identifies mov.b instructions with a 16bit absolute
710
   address.  The linker tries to turn insns with this reloc into
711
   an absolute 8-bit address.  */
712
#define R_MOV16B1       0x41
713
 
714
/* This reloc identifies mov.b instructions which had a 16bit
715
   absolute address which have been shortened into a 8-bit
716
   absolute address.  */
717
#define R_MOV16B2       0x42
718
 
719
/* This reloc identifies jmp insns with a 16bit target address;
720
   the linker tries to turn these insns into bra insns with
721
   an 8bit pc-relative target.  */
722
#define R_JMP1          0x43
723
 
724
/* This reloc identifies a bra with an 8-bit pc-relative
725
   target that was formerly a jmp insn with a 16bit target.  */
726
#define R_JMP2          0x44
727
 
728
/* ??? */
729
#define R_RELLONG_NEG   0x45
730
 
731
/* This reloc identifies jmp insns with a 24bit target address;
732
   the linker tries to turn these insns into bra insns with
733
   an 8bit pc-relative target.  */
734
#define R_JMPL1         0x46
735
 
736
/* This reloc identifies a bra with an 8-bit pc-relative
737
   target that was formerly a jmp insn with a 24bit target.  */
738
#define R_JMPL2         0x47
739
 
740
/* This reloc identifies mov.b instructions with a 24bit absolute
741
   address.  The linker tries to turn insns with this reloc into
742
   an absolute 8-bit address.  */
743
 
744
#define R_MOV24B1       0x48
745
 
746
/* This reloc identifies mov.b instructions which had a 24bit
747
   absolute address which have been shortened into a 8-bit
748
   absolute address.  */
749
#define R_MOV24B2       0x49
750
 
751
/* An h8300 memory indirect jump/call.  Forces the address of the jump/call
752
   target into the function vector (in page zero), and the address of the
753
   vector entry to be placed in the jump/call instruction.  */
754
#define R_MEM_INDIRECT  0x4a
755
 
756
/* This reloc identifies a 16bit pc-relative branch target which was
757
   shortened into an 8bit pc-relative branch target.  */
758
#define R_PCRWORD_B     0x4b
759
 
760
/* This reloc identifies mov.[wl] instructions with a 32/24 bit
761
   absolute address; the linker may turn this into a mov.[wl]
762
   insn with a 16bit absolute address.  */
763
#define R_MOVL1         0x4c
764
 
765
/* This reloc identifies mov.[wl] insns which formerly had
766
   a 32/24bit absolute address and now have a 16bit absolute address.  */
767
#define R_MOVL2         0x4d
768
 
769
/* This reloc identifies a bCC:8 which will have it's condition
770
   inverted and its target redirected to the target of the branch
771
   in the following insn.  */
772
#define R_BCC_INV       0x4e
773
 
774
/* This reloc identifies a jmp instruction that has been deleted.  */
775
#define R_JMP_DEL       0x4f
776
 
777
/* Z8k modes */
778
#define R_IMM16   0x01          /* 16 bit abs */
779
#define R_JR      0x02          /* jr  8 bit disp */
780
#define R_IMM4L   0x23          /* low nibble */
781
#define R_IMM8    0x22          /* 8 bit abs */
782
#define R_IMM32   R_RELLONG     /* 32 bit abs */
783
#define R_CALL    R_DA          /* Absolute address which could be a callr */
784
#define R_JP      R_DA          /* Absolute address which could be a jp */
785
#define R_REL16   0x04          /* 16 bit PC rel */
786
#define R_CALLR   0x05          /* callr 12 bit disp */
787
#define R_SEG     0x10          /* set if in segmented mode */
788
#define R_IMM4H   0x24          /* high nibble */
789
#define R_DISP7   0x25          /* djnz displacement */
790
 
791
/* Z80 modes */
792
#define R_OFF8    0x32          /* 8 bit signed abs, for (i[xy]+d) */
793
#define R_IMM24   0x33          /* 24 bit abs */
794
/* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
795
 
796
/* H8500 modes */
797
 
798
#define R_H8500_IMM8    1               /*  8 bit immediate     */
799
#define R_H8500_IMM16   2               /* 16 bit immediate     */
800
#define R_H8500_PCREL8  3               /*  8 bit pcrel         */
801
#define R_H8500_PCREL16 4               /* 16 bit pcrel         */
802
#define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
803
#define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
804
#define R_H8500_IMM24   6               /* 24 bit immediate */
805
#define R_H8500_IMM32   8               /* 32 bit immediate */
806
#define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
807
 
808
/* W65 modes */
809
 
810
#define R_W65_ABS8      1  /* addr & 0xff               */
811
#define R_W65_ABS16     2  /* addr & 0xffff             */
812
#define R_W65_ABS24     3  /* addr & 0xffffff           */
813
 
814
#define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
815
#define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
816
 
817
#define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
818
#define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
819
 
820
#define R_W65_PCR8      8
821
#define R_W65_PCR16     9
822
 
823
#define R_W65_DP       10  /* direct page 8 bits only   */
824
 
825
#endif /* GNU_COFF_INTERNAL_H */

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