source: trunk/libs/newlib/src/include/coff/internal.h @ 537

Last change on this file since 537 was 444, checked in by satin@…, 7 years ago

add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 30.1 KB
RevLine 
[444]1/* 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   2010  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 3 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,
20   MA 02110-1301, USA.  */
21
22#ifndef GNU_COFF_INTERNAL_H
23#define GNU_COFF_INTERNAL_H 1
24
25/* First, make "signed char" work, even on old compilers. */
26#ifndef signed
27#ifndef __STDC__
28#define signed                  /**/
29#endif
30#endif
31
32/********************** FILE HEADER **********************/
33
34/* extra stuff in a PE header. */
35
36struct internal_extra_pe_filehdr
37{
38  /* DOS header data follows for PE stuff */
39  unsigned short e_magic;       /* Magic number, 0x5a4d */
40  unsigned short e_cblp;        /* Bytes on last page of file, 0x90 */
41  unsigned short e_cp;          /* Pages in file, 0x3 */
42  unsigned short e_crlc;        /* Relocations, 0x0 */
43  unsigned short e_cparhdr;     /* Size of header in paragraphs, 0x4 */
44  unsigned short e_minalloc;    /* Minimum extra paragraphs needed, 0x0 */
45  unsigned short e_maxalloc;    /* Maximum extra paragraphs needed, 0xFFFF */
46  unsigned short e_ss;          /* Initial (relative) SS value, 0x0 */
47  unsigned short e_sp;          /* Initial SP value, 0xb8 */
48  unsigned short e_csum;        /* Checksum, 0x0 */
49  unsigned short e_ip;          /* Initial IP value, 0x0 */
50  unsigned short e_cs;          /* Initial (relative) CS value, 0x0 */
51  unsigned short e_lfarlc;      /* File address of relocation table, 0x40 */
52  unsigned short e_ovno;        /* Overlay number, 0x0 */
53  unsigned short e_res[4];      /* Reserved words, all 0x0 */
54  unsigned short e_oemid;       /* OEM identifier (for e_oeminfo), 0x0 */
55  unsigned short e_oeminfo;     /* OEM information; e_oemid specific, 0x0 */
56  unsigned short e_res2[10];    /* Reserved words, all 0x0 */
57  bfd_vma  e_lfanew;            /* File address of new exe header, 0x80 */
58  unsigned long dos_message[16]; /* text which always follows dos header */
59  bfd_vma  nt_signature;        /* required NT signature, 0x4550 */ 
60};
61
62#define GO32_STUBSIZE 2048
63
64struct internal_filehdr
65{
66  struct internal_extra_pe_filehdr pe;
67
68  /* coff-stgo32 EXE stub header before BFD tdata has been allocated.
69     Its data is kept in INTERNAL_FILEHDR.GO32STUB afterwards.
70     
71     F_GO32STUB is set iff go32stub contains a valid data.  Artifical headers
72     created in BFD have no pre-set go32stub.  */
73  char go32stub[GO32_STUBSIZE];
74
75  /* Standard coff internal info.  */
76  unsigned short f_magic;       /* magic number                 */
77  unsigned short f_nscns;       /* number of sections           */
78  long f_timdat;                /* time & date stamp            */
79  bfd_vma f_symptr;             /* file pointer to symtab       */
80  long f_nsyms;                 /* number of symtab entries     */
81  unsigned short f_opthdr;      /* sizeof(optional hdr)         */
82  unsigned short f_flags;       /* flags                        */
83  unsigned short f_target_id;   /* (TI COFF specific)           */
84};
85
86
87/* Bits for f_flags:
88        F_RELFLG        relocation info stripped from file
89        F_EXEC          file is executable (no unresolved external references)
90        F_LNNO          line numbers stripped from file
91        F_LSYMS         local symbols stripped from file
92        F_AR16WR        file is 16-bit little-endian
93        F_AR32WR        file is 32-bit little-endian
94        F_AR32W         file is 32-bit big-endian
95        F_DYNLOAD       rs/6000 aix: dynamically loadable w/imports & exports
96        F_SHROBJ        rs/6000 aix: file is a shared object
97        F_DLL           PE format DLL
98        F_GO32STUB      Field go32stub contains valid data.  */
99
100#define F_RELFLG        (0x0001)
101#define F_EXEC          (0x0002)
102#define F_LNNO          (0x0004)
103#define F_LSYMS         (0x0008)
104#define F_AR16WR        (0x0080)
105#define F_AR32WR        (0x0100)
106#define F_AR32W         (0x0200)
107#define F_DYNLOAD       (0x1000)
108#define F_SHROBJ        (0x2000)
109#define F_DLL           (0x2000)
110#define F_GO32STUB      (0x4000)
111
112/* Extra structure which is used in the optional header.  */
113typedef struct _IMAGE_DATA_DIRECTORY
114{
115  bfd_vma VirtualAddress;
116  long    Size;
117}  IMAGE_DATA_DIRECTORY;
118#define PE_EXPORT_TABLE                 0
119#define PE_IMPORT_TABLE                 1
120#define PE_RESOURCE_TABLE               2
121#define PE_EXCEPTION_TABLE              3
122#define PE_CERTIFICATE_TABLE            4
123#define PE_BASE_RELOCATION_TABLE        5
124#define PE_DEBUG_DATA                   6
125#define PE_ARCHITECTURE                 7
126#define PE_GLOBAL_PTR                   8
127#define PE_TLS_TABLE                    9
128#define PE_LOAD_CONFIG_TABLE            10
129#define PE_BOUND_IMPORT_TABLE           11
130#define PE_IMPORT_ADDRESS_TABLE         12
131#define PE_DELAY_IMPORT_DESCRIPTOR      13
132#define PE_CLR_RUNTIME_HEADER           14
133/* DataDirectory[15] is currently reserved, so no define. */
134#define IMAGE_NUMBEROF_DIRECTORY_ENTRIES  16
135
136/* Default image base for NT.  */
137#define NT_EXE_IMAGE_BASE 0x400000
138#define NT_DLL_IMAGE_BASE 0x10000000
139
140/* Default image base for BeOS. */
141#define BEOS_EXE_IMAGE_BASE 0x80000000
142#define BEOS_DLL_IMAGE_BASE 0x10000000
143
144/* Extra stuff in a PE aouthdr */
145
146#define PE_DEF_SECTION_ALIGNMENT 0x1000
147#ifndef PE_DEF_FILE_ALIGNMENT
148# define PE_DEF_FILE_ALIGNMENT 0x200
149#endif
150
151struct internal_extra_pe_aouthdr
152{
153  /* FIXME: The following entries are in AOUTHDR.  But they aren't
154     available internally in bfd.  We add them here so that objdump
155     can dump them.  */
156  /* The state of the image file  */
157  short Magic;
158  /* Linker major version number */
159  char MajorLinkerVersion;
160  /* Linker minor version number  */
161  char MinorLinkerVersion;     
162  /* Total size of all code sections  */
163  long SizeOfCode;
164  /* Total size of all initialized data sections  */
165  long SizeOfInitializedData;
166  /* Total size of all uninitialized data sections  */
167  long SizeOfUninitializedData;
168  /* Address of entry point relative to image base.  */
169  bfd_vma AddressOfEntryPoint;
170  /* Address of the first code section relative to image base.  */
171  bfd_vma BaseOfCode;
172  /* Address of the first data section relative to image base.  */
173  bfd_vma BaseOfData;
174 
175  /* PE stuff  */
176  bfd_vma ImageBase;            /* address of specific location in memory that
177                                   file is located, NT default 0x10000 */
178
179  bfd_vma SectionAlignment;     /* section alignment default 0x1000 */
180  bfd_vma FileAlignment;        /* file alignment default 0x200 */
181  short   MajorOperatingSystemVersion; /* minimum version of the operating */
182  short   MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
183  short   MajorImageVersion;    /* user defineable field to store version of */
184  short   MinorImageVersion;    /* exe or dll being created, default to 0 */ 
185  short   MajorSubsystemVersion; /* minimum subsystem version required to */
186  short   MinorSubsystemVersion; /* run exe; default to 3.1 */
187  long    Reserved1;            /* seems to be 0 */
188  long    SizeOfImage;          /* size of memory to allocate for prog */
189  long    SizeOfHeaders;        /* size of PE header and section table */
190  long    CheckSum;             /* set to 0 */
191  short   Subsystem;   
192
193  /* type of subsystem exe uses for user interface,
194     possible values:
195     1 - NATIVE   Doesn't require a subsystem
196     2 - WINDOWS_GUI runs in Windows GUI subsystem
197     3 - WINDOWS_CUI runs in Windows char sub. (console app)
198     5 - OS2_CUI runs in OS/2 character subsystem
199     7 - POSIX_CUI runs in Posix character subsystem */
200  unsigned short DllCharacteristics; /* flags for DLL init  */
201  bfd_vma SizeOfStackReserve;   /* amount of memory to reserve  */
202  bfd_vma SizeOfStackCommit;    /* amount of memory initially committed for
203                                   initial thread's stack, default is 0x1000 */
204  bfd_vma SizeOfHeapReserve;    /* amount of virtual memory to reserve and */
205  bfd_vma SizeOfHeapCommit;     /* commit, don't know what to defaut it to */
206  long    LoaderFlags;          /* can probably set to 0 */
207  long    NumberOfRvaAndSizes;  /* number of entries in next entry, 16 */
208  IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
209};
210
211/********************** AOUT "OPTIONAL HEADER" **********************/
212struct internal_aouthdr
213{
214  short magic;                  /* type of file                         */
215  short vstamp;                 /* version stamp                        */
216  bfd_vma tsize;                /* text size in bytes, padded to FW bdry*/
217  bfd_vma dsize;                /* initialized data "  "                */
218  bfd_vma bsize;                /* uninitialized data "   "             */
219  bfd_vma entry;                /* entry pt.                            */
220  bfd_vma text_start;           /* base of text used for this file */
221  bfd_vma data_start;           /* base of data used for this file */
222
223  /* i960 stuff */
224  unsigned long tagentries;     /* number of tag entries to follow */
225
226  /* RS/6000 stuff */
227  bfd_vma o_toc;                /* address of TOC                       */
228  short o_snentry;              /* section number for entry point */
229  short o_sntext;               /* section number for text      */
230  short o_sndata;               /* section number for data      */
231  short o_sntoc;                /* section number for toc       */
232  short o_snloader;             /* section number for loader section */
233  short o_snbss;                /* section number for bss       */
234  short o_algntext;             /* max alignment for text       */
235  short o_algndata;             /* max alignment for data       */
236  short o_modtype;              /* Module type field, 1R,RE,RO  */
237  short o_cputype;              /* Encoded CPU type             */
238  bfd_vma o_maxstack;   /* max stack size allowed.      */
239  bfd_vma o_maxdata;    /* max data size allowed.       */
240
241  /* ECOFF stuff */
242  bfd_vma bss_start;            /* Base of bss section.         */
243  bfd_vma gp_value;             /* GP register value.           */
244  unsigned long gprmask;        /* General registers used.      */
245  unsigned long cprmask[4];     /* Coprocessor registers used.  */
246  unsigned long fprmask;        /* Floating pointer registers used.  */
247
248  /* Apollo stuff */
249  long o_inlib;                 /* inlib data */
250  long o_sri;                   /* Static Resource Information */
251  long vid[2];                  /* Version id */
252
253  struct internal_extra_pe_aouthdr pe;
254};
255
256/********************** STORAGE CLASSES **********************/
257
258/* This used to be defined as -1, but now n_sclass is unsigned.  */
259#define C_EFCN          0xff    /* physical end of function     */
260#define C_NULL          0
261#define C_AUTO          1       /* automatic variable           */
262#define C_EXT           2       /* external symbol              */
263#define C_STAT          3       /* static                       */
264#define C_REG           4       /* register variable            */
265#define C_EXTDEF        5       /* external definition          */
266#define C_LABEL         6       /* label                        */
267#define C_ULABEL        7       /* undefined label              */
268#define C_MOS           8       /* member of structure          */
269#define C_ARG           9       /* function argument            */
270#define C_STRTAG        10      /* structure tag                */
271#define C_MOU           11      /* member of union              */
272#define C_UNTAG         12      /* union tag                    */
273#define C_TPDEF         13      /* type definition              */
274#define C_USTATIC       14      /* undefined static             */
275#define C_ENTAG         15      /* enumeration tag              */
276#define C_MOE           16      /* member of enumeration        */
277#define C_REGPARM       17      /* register parameter           */
278#define C_FIELD         18      /* bit field                    */
279#define C_AUTOARG       19      /* auto argument                */
280#define C_LASTENT       20      /* dummy entry (end of block)   */
281#define C_BLOCK         100     /* ".bb" or ".eb"               */
282#define C_FCN           101     /* ".bf" or ".ef"               */
283#define C_EOS           102     /* end of structure             */
284#define C_FILE          103     /* file name                    */
285#define C_LINE          104     /* line # reformatted as symbol table entry */
286#define C_ALIAS         105     /* duplicate tag                */
287#define C_HIDDEN        106     /* ext symbol in dmert public lib */
288#define C_WEAKEXT       127     /* weak symbol -- GNU extension.  */
289
290/* New storage classes for TI COFF */
291#define C_UEXT          19      /* Tentative external definition */
292#define C_STATLAB       20      /* Static load time label */
293#define C_EXTLAB        21      /* External load time label */
294#define C_SYSTEM        23      /* System Wide variable */
295
296/* New storage classes for WINDOWS_NT   */
297#define C_SECTION       104     /* section name */
298#define C_NT_WEAK       105     /* weak external */
299
300 /* New storage classes for 80960 */
301
302/* C_LEAFPROC is obsolete.  Use C_LEAFEXT or C_LEAFSTAT */
303#define C_LEAFPROC      108     /* Leaf procedure, "call" via BAL */
304
305#define C_SCALL         107     /* Procedure reachable via system call */
306#define C_LEAFEXT       108     /* External leaf */
307#define C_LEAFSTAT      113     /* Static leaf */
308#define C_OPTVAR        109     /* Optimized variable           */
309#define C_DEFINE        110     /* Preprocessor #define         */
310#define C_PRAGMA        111     /* Advice to compiler or linker */
311#define C_SEGMENT       112     /* 80960 segment name           */
312
313  /* Storage classes for m88k */
314#define C_SHADOW        107     /* shadow symbol                */
315#define C_VERSION       108     /* coff version symbol          */
316
317 /* New storage classes for RS/6000 */
318#define C_HIDEXT        107     /* Un-named external symbol */
319#define C_BINCL         108     /* Marks beginning of include file */
320#define C_EINCL         109     /* Marks ending of include file */
321#define C_AIX_WEAKEXT   111     /* AIX definition of C_WEAKEXT.  */
322
323#define C_NULL_VALUE    0x00de1e00    /* Value for a C_NULL deleted entry.  */
324
325#if defined _AIX52 || defined AIX_WEAK_SUPPORT
326#undef C_WEAKEXT
327#define C_WEAKEXT       C_AIX_WEAKEXT
328#endif
329
330 /* storage classes for stab symbols for RS/6000 */
331#define C_GSYM          (0x80)
332#define C_LSYM          (0x81)
333#define C_PSYM          (0x82)
334#define C_RSYM          (0x83)
335#define C_RPSYM         (0x84)
336#define C_STSYM         (0x85)
337#define C_TCSYM         (0x86)
338#define C_BCOMM         (0x87)
339#define C_ECOML         (0x88)
340#define C_ECOMM         (0x89)
341#define C_DECL          (0x8c)
342#define C_ENTRY         (0x8d)
343#define C_FUN           (0x8e)
344#define C_BSTAT         (0x8f)
345#define C_ESTAT         (0x90)
346#define C_GTLS          (0x97)
347#define C_STTLS         (0x98)
348
349/* Storage classes for Thumb symbols */
350#define C_THUMBEXT      (128 + C_EXT)           /* 130 */
351#define C_THUMBSTAT     (128 + C_STAT)          /* 131 */
352#define C_THUMBLABEL    (128 + C_LABEL)         /* 134 */
353#define C_THUMBEXTFUNC  (C_THUMBEXT  + 20)      /* 150 */
354#define C_THUMBSTATFUNC (C_THUMBSTAT + 20)      /* 151 */
355
356/* True if XCOFF symbols of class CLASS have auxillary csect information.  */
357#define CSECT_SYM_P(CLASS) \
358  ((CLASS) == C_EXT || (CLASS) == C_AIX_WEAKEXT || (CLASS) == C_HIDEXT)
359
360/********************** SECTION HEADER **********************/
361
362#define SCNNMLEN (8)
363
364struct internal_scnhdr
365{
366  char s_name[SCNNMLEN];        /* section name                 */
367
368  /* Physical address, aliased s_nlib.
369     In the pei format, this field is the virtual section size
370     (the size of the section after being loaded int memory),
371     NOT the physical address.  */
372  bfd_vma s_paddr;
373
374  bfd_vma s_vaddr;              /* virtual address              */
375  bfd_vma s_size;               /* section size                 */
376  bfd_vma s_scnptr;             /* file ptr to raw data for section */
377  bfd_vma s_relptr;             /* file ptr to relocation       */
378  bfd_vma s_lnnoptr;            /* file ptr to line numbers     */
379  unsigned long s_nreloc;       /* number of relocation entries */
380  unsigned long s_nlnno;        /* number of line number entries*/
381  long s_flags;                 /* flags                        */
382  long s_align;                 /* used on I960                 */
383  unsigned char s_page;         /* TI COFF load page            */
384};
385
386/* s_flags "type".  */
387#define STYP_REG         (0x0000)       /* "regular": allocated, relocated, loaded */
388#define STYP_DSECT       (0x0001)       /* "dummy":  relocated only*/
389#define STYP_NOLOAD      (0x0002)       /* "noload": allocated, relocated, not loaded */
390#define STYP_GROUP       (0x0004)       /* "grouped": formed of input sections */
391#define STYP_PAD         (0x0008)       /* "padding": not allocated, not relocated, loaded */
392#define STYP_COPY        (0x0010)       /* "copy": for decision function used by field update;  not allocated, not relocated,
393                                                                             loaded; reloc & lineno entries processed normally */
394#define STYP_TEXT        (0x0020)       /* section contains text only */
395#define S_SHRSEG         (0x0020)       /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
396                                                                             will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
397                                                                             update all process invocations. */
398#define STYP_DATA        (0x0040)       /* section contains data only */
399#define STYP_BSS         (0x0080)       /* section contains bss only */
400#define S_NEWFCN         (0x0100)       /* In a minimal file or an update file, a new function (as compared with a replaced function) */
401#define STYP_INFO        (0x0200)       /* comment: not allocated not relocated, not loaded */
402#define STYP_OVER        (0x0400)       /* overlay: relocated not allocated or loaded */
403#define STYP_LIB         (0x0800)       /* for .lib: same as INFO */
404#define STYP_MERGE       (0x2000)       /* merge section -- combines with text, data or bss sections only */
405#define STYP_REVERSE_PAD (0x4000)       /* section will be padded with no-op instructions
406                                           wherever padding is necessary and there is a
407                                           word of contiguous bytes beginning on a word
408                                           boundary. */
409
410#define STYP_LIT        0x8020  /* Literal data (like STYP_TEXT) */
411
412
413/********************** LINE NUMBERS **********************/
414
415/* 1 line number entry for every "breakpointable" source line in a section.
416   Line numbers are grouped on a per function basis; first entry in a function
417   grouping will have l_lnno = 0 and in place of physical address will be the
418   symbol table index of the function name.  */
419
420struct internal_lineno
421{
422  union
423  {
424    bfd_signed_vma l_symndx;            /* function name symbol index, iff l_lnno == 0*/
425    bfd_signed_vma l_paddr;             /* (physical) address of line number    */
426  }     l_addr;
427  unsigned long l_lnno;         /* line number          */
428};
429
430/********************** SYMBOLS **********************/
431
432#define SYMNMLEN        8       /* # characters in a symbol name        */
433#define FILNMLEN        14      /* # characters in a file name          */
434#define DIMNUM          4       /* # array dimensions in auxiliary entry */
435
436struct internal_syment
437{
438  union
439  {
440    char _n_name[SYMNMLEN];     /* old COFF version             */
441    struct
442    {
443      bfd_hostptr_t _n_zeroes;  /* new == 0                     */
444      bfd_hostptr_t _n_offset;  /* offset into string table     */
445    }      _n_n;
446    char *_n_nptr[2];           /* allows for overlaying        */
447  }     _n;
448  bfd_vma n_value;              /* value of symbol              */
449  short n_scnum;                /* section number               */
450  unsigned short n_flags;       /* copy of flags from filhdr    */
451  unsigned short n_type;        /* type and derived type        */
452  unsigned char n_sclass;       /* storage class                */
453  unsigned char n_numaux;       /* number of aux. entries       */
454};
455
456#define n_name          _n._n_name
457#define n_zeroes        _n._n_n._n_zeroes
458#define n_offset        _n._n_n._n_offset
459
460/* Relocatable symbols have number of the section in which they are defined,
461   or one of the following:  */
462
463#define N_UNDEF ((short)0)      /* undefined symbol */
464#define N_ABS   ((short)-1)     /* value of symbol is absolute */
465#define N_DEBUG ((short)-2)     /* debugging symbol -- value is meaningless */
466#define N_TV    ((short)-3)     /* indicates symbol needs preload transfer vector */
467#define P_TV    ((short)-4)     /* indicates symbol needs postload transfer vector*/
468
469/* Type of a symbol, in low N bits of the word.  */
470
471#define T_NULL          0
472#define T_VOID          1       /* function argument (only used by compiler) */
473#define T_CHAR          2       /* character            */
474#define T_SHORT         3       /* short integer        */
475#define T_INT           4       /* integer              */
476#define T_LONG          5       /* long integer         */
477#define T_FLOAT         6       /* floating point       */
478#define T_DOUBLE        7       /* double word          */
479#define T_STRUCT        8       /* structure            */
480#define T_UNION         9       /* union                */
481#define T_ENUM          10      /* enumeration          */
482#define T_MOE           11      /* member of enumeration*/
483#define T_UCHAR         12      /* unsigned character   */
484#define T_USHORT        13      /* unsigned short       */
485#define T_UINT          14      /* unsigned integer     */
486#define T_ULONG         15      /* unsigned long        */
487#define T_LNGDBL        16      /* long double          */
488
489/* Derived types, in n_type.  */
490
491#define DT_NON          (0)     /* no derived type */
492#define DT_PTR          (1)     /* pointer */
493#define DT_FCN          (2)     /* function */
494#define DT_ARY          (3)     /* array */
495
496#define BTYPE(x)        ((x) & N_BTMASK)
497#define DTYPE(x)        (((x) & N_TMASK) >> N_BTSHFT)
498
499#define ISPTR(x) \
500  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
501#define ISFCN(x) \
502  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
503#define ISARY(x) \
504  (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
505#define ISTAG(x) \
506  ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
507#define DECREF(x) \
508  ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
509
510union internal_auxent
511{
512  struct
513  {
514
515    union
516    {
517      long l;                   /* str, un, or enum tag indx */
518      struct coff_ptr_struct *p;
519    }     x_tagndx;
520
521    union
522    {
523      struct
524      {
525        unsigned short x_lnno;  /* declaration line number */
526        unsigned short x_size;  /* str/union/array size */
527      }      x_lnsz;
528      long x_fsize;             /* size of function */
529    }     x_misc;
530
531    union
532    {
533      struct
534      {                         /* if ISFCN, tag, or .bb */
535        bfd_signed_vma x_lnnoptr;               /* ptr to fcn line # */
536        union
537        {                       /* entry ndx past block end */
538          long l;
539          struct coff_ptr_struct *p;
540        }     x_endndx;
541      }      x_fcn;
542
543      struct
544      {                         /* if ISARY, up to 4 dimen. */
545        unsigned short x_dimen[DIMNUM];
546      }      x_ary;
547    }     x_fcnary;
548
549    unsigned short x_tvndx;     /* tv index */
550  }      x_sym;
551
552  union
553  {
554    char x_fname[FILNMLEN];
555    struct
556    {
557      long x_zeroes;
558      long x_offset;
559    }      x_n;
560  }     x_file;
561
562  struct
563  {
564    long x_scnlen;              /* section length */
565    unsigned short x_nreloc;    /* # relocation entries */
566    unsigned short x_nlinno;    /* # line numbers */
567    unsigned long x_checksum;   /* section COMDAT checksum for PE */
568    unsigned short x_associated; /* COMDAT associated section index for PE */
569    unsigned char x_comdat;     /* COMDAT selection number for PE */
570  }      x_scn;
571
572  struct
573  {
574    long x_tvfill;              /* tv fill value */
575    unsigned short x_tvlen;     /* length of .tv */
576    unsigned short x_tvran[2];  /* tv range */
577  }      x_tv;                  /* info about .tv section (in auxent of symbol .tv)) */
578
579  /******************************************
580   * RS/6000-specific auxent - last auxent for every external symbol
581   ******************************************/
582  struct
583  {
584    union
585      {                         /* csect length or enclosing csect */
586        bfd_signed_vma l;
587        struct coff_ptr_struct *p;
588      } x_scnlen;
589    long x_parmhash;            /* parm type hash index */
590    unsigned short x_snhash;    /* sect num with parm hash */
591    unsigned char x_smtyp;      /* symbol align and type */
592    /* 0-4 - Log 2 of alignment */
593    /* 5-7 - symbol type */
594    unsigned char x_smclas;     /* storage mapping class */
595    long x_stab;                /* dbx stab info index */
596    unsigned short x_snstab;    /* sect num with dbx stab */
597  }      x_csect;               /* csect definition information */
598
599/* x_smtyp values:  */
600
601#define SMTYP_ALIGN(x)  ((x) >> 3)      /* log2 of alignment */
602#define SMTYP_SMTYP(x)  ((x) & 0x7)     /* symbol type */
603/* Symbol type values:  */
604#define XTY_ER  0               /* External reference */
605#define XTY_SD  1               /* Csect definition */
606#define XTY_LD  2               /* Label definition */
607#define XTY_CM  3               /* .BSS */
608#define XTY_EM  4               /* Error message */
609#define XTY_US  5               /* "Reserved for internal use" */
610
611/* x_smclas values:  */
612
613#define XMC_PR  0               /* Read-only program code */
614#define XMC_RO  1               /* Read-only constant */
615#define XMC_DB  2               /* Read-only debug dictionary table */
616#define XMC_TC  3               /* Read-write general TOC entry */
617#define XMC_UA  4               /* Read-write unclassified */
618#define XMC_RW  5               /* Read-write data */
619#define XMC_GL  6               /* Read-only global linkage */
620#define XMC_XO  7               /* Read-only extended operation */
621#define XMC_SV  8               /* Read-only supervisor call */
622#define XMC_BS  9               /* Read-write BSS */
623#define XMC_DS  10              /* Read-write descriptor csect */
624#define XMC_UC  11              /* Read-write unnamed Fortran common */
625#define XMC_TI  12              /* Read-only traceback index csect */
626#define XMC_TB  13              /* Read-only traceback table csect */
627/*              14      ??? */
628#define XMC_TC0 15              /* Read-write TOC anchor */
629#define XMC_TD  16              /* Read-write data in TOC */
630
631  /******************************************
632   *  I960-specific *2nd* aux. entry formats
633   ******************************************/
634  struct
635  {
636    /* This is a very old typo that keeps getting propagated. */
637#define x_stdindx x_stindx
638    long x_stindx;              /* sys. table entry */
639  }      x_sc;                  /* system call entry */
640
641  struct
642  {
643    unsigned long x_balntry;    /* BAL entry point */
644  }      x_bal;                 /* BAL-callable function */
645
646  struct
647  {
648    unsigned long x_timestamp;  /* time stamp */
649    char x_idstring[20];        /* producer identity string */
650  }      x_ident;               /* Producer ident info */
651
652};
653
654/********************** RELOCATION DIRECTIVES **********************/
655
656struct internal_reloc
657{
658  bfd_vma r_vaddr;              /* Virtual address of reference */
659  long r_symndx;                /* Index into symbol table      */
660  unsigned short r_type;        /* Relocation type              */
661  unsigned char r_size;         /* Used by RS/6000 and ECOFF    */
662  unsigned char r_extern;       /* Used by ECOFF                */
663  unsigned long r_offset;       /* Used by Alpha ECOFF, SPARC, others */
664};
665
666/* X86-64 relocations.  */
667#define R_AMD64_ABS              0 /* Reference is absolute, no relocation is necessary.  */
668#define R_AMD64_DIR64            1 /* 64-bit address (VA).  */
669#define R_AMD64_DIR32            2 /* 32-bit address (VA) R_DIR32.  */
670#define R_AMD64_IMAGEBASE        3 /* 32-bit absolute ref w/o base R_IMAGEBASE.  */
671#define R_AMD64_PCRLONG          4 /* 32-bit relative address from byte following reloc R_PCRLONG.  */
672#define R_AMD64_PCRLONG_1        5 /* 32-bit relative address from byte distance 1 from reloc.  */
673#define R_AMD64_PCRLONG_2        6 /* 32-bit relative address from byte distance 2 from reloc.  */
674#define R_AMD64_PCRLONG_3        7 /* 32-bit relative address from byte distance 3 from reloc.  */
675#define R_AMD64_PCRLONG_4        8 /* 32-bit relative address from byte distance 4 from reloc.  */
676#define R_AMD64_PCRLONG_5        9 /* 32-bit relative address from byte distance 5 from reloc.  */
677#define R_AMD64_SECTION         10 /* Section index.  */
678#define R_AMD64_SECREL          11 /* 32 bit offset from base of section containing target R_SECREL.  */
679#define R_AMD64_SECREL7         12 /* 7 bit unsigned offset from base of section containing target.  */
680#define R_AMD64_TOKEN           13 /* 32 bit metadata token.  */
681#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.  */
682
683/* i386 Relocations.  */
684
685#define R_DIR16          1
686#define R_REL24          5
687#define R_DIR32          6
688#define R_IMAGEBASE      7
689#define R_SECREL32      11
690#define R_RELBYTE       15
691#define R_RELWORD       16
692#define R_RELLONG       17
693#define R_PCRBYTE       18
694#define R_PCRWORD       19
695#define R_PCRLONG       20
696#define R_PCR24         21
697#define R_IPRSHORT      24
698#define R_IPRLONG       26
699#define R_GETSEG        29
700#define R_GETPA         30
701#define R_TAGWORD       31
702#define R_JUMPTARG      32      /* strange 29k 00xx00xx reloc */
703#define R_PARTLS16      32
704#define R_PARTMS8       33
705
706#define R_PCR16L       128
707#define R_PCR26L       129
708#define R_VRT16        130
709#define R_HVRT16       131
710#define R_LVRT16       132
711#define R_VRT32        133
712
713
714/* This reloc identifies mov.b instructions with a 16bit absolute
715   address.  The linker tries to turn insns with this reloc into
716   an absolute 8-bit address.  */
717#define R_MOV16B1       0x41
718
719/* This reloc identifies mov.b instructions which had a 16bit
720   absolute address which have been shortened into a 8-bit
721   absolute address.  */
722#define R_MOV16B2       0x42
723
724/* This reloc identifies jmp insns with a 16bit target address;
725   the linker tries to turn these insns into bra insns with
726   an 8bit pc-relative target.  */
727#define R_JMP1          0x43
728
729/* This reloc identifies a bra with an 8-bit pc-relative
730   target that was formerly a jmp insn with a 16bit target.  */
731#define R_JMP2          0x44
732
733/* ??? */
734#define R_RELLONG_NEG   0x45
735
736/* This reloc identifies jmp insns with a 24bit target address;
737   the linker tries to turn these insns into bra insns with
738   an 8bit pc-relative target.  */
739#define R_JMPL1         0x46
740
741/* This reloc identifies a bra with an 8-bit pc-relative
742   target that was formerly a jmp insn with a 24bit target.  */
743#define R_JMPL2         0x47
744
745/* This reloc identifies mov.b instructions with a 24bit absolute
746   address.  The linker tries to turn insns with this reloc into
747   an absolute 8-bit address.  */
748
749#define R_MOV24B1       0x48
750
751/* This reloc identifies mov.b instructions which had a 24bit
752   absolute address which have been shortened into a 8-bit
753   absolute address.  */
754#define R_MOV24B2       0x49
755
756/* An h8300 memory indirect jump/call.  Forces the address of the jump/call
757   target into the function vector (in page zero), and the address of the
758   vector entry to be placed in the jump/call instruction.  */
759#define R_MEM_INDIRECT  0x4a
760
761/* This reloc identifies a 16bit pc-relative branch target which was
762   shortened into an 8bit pc-relative branch target.  */
763#define R_PCRWORD_B     0x4b
764
765/* This reloc identifies mov.[wl] instructions with a 32/24 bit
766   absolute address; the linker may turn this into a mov.[wl]
767   insn with a 16bit absolute address.  */
768#define R_MOVL1         0x4c
769
770/* This reloc identifies mov.[wl] insns which formerly had
771   a 32/24bit absolute address and now have a 16bit absolute address.  */
772#define R_MOVL2         0x4d
773
774/* This reloc identifies a bCC:8 which will have it's condition
775   inverted and its target redirected to the target of the branch
776   in the following insn.  */
777#define R_BCC_INV       0x4e
778
779/* This reloc identifies a jmp instruction that has been deleted.  */
780#define R_JMP_DEL       0x4f
781
782/* Z8k modes */
783#define R_IMM16   0x01          /* 16 bit abs */
784#define R_JR      0x02          /* jr  8 bit disp */
785#define R_IMM4L   0x23          /* low nibble */
786#define R_IMM8    0x22          /* 8 bit abs */
787#define R_IMM32   R_RELLONG     /* 32 bit abs */
788#define R_CALL    R_DA          /* Absolute address which could be a callr */
789#define R_JP      R_DA          /* Absolute address which could be a jp */
790#define R_REL16   0x04          /* 16 bit PC rel */
791#define R_CALLR   0x05          /* callr 12 bit disp */
792#define R_SEG     0x10          /* set if in segmented mode */
793#define R_IMM4H   0x24          /* high nibble */
794#define R_DISP7   0x25          /* djnz displacement */
795
796/* Z80 modes */
797#define R_OFF8    0x32          /* 8 bit signed abs, for (i[xy]+d) */
798#define R_IMM24   0x33          /* 24 bit abs */
799/* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
800
801/* H8500 modes */
802
803#define R_H8500_IMM8    1               /*  8 bit immediate     */
804#define R_H8500_IMM16   2               /* 16 bit immediate     */
805#define R_H8500_PCREL8  3               /*  8 bit pcrel         */
806#define R_H8500_PCREL16 4               /* 16 bit pcrel         */
807#define R_H8500_HIGH8   5               /* high 8 bits of 24 bit address */
808#define R_H8500_LOW16   7               /* low 16 bits of 24 bit immediate */
809#define R_H8500_IMM24   6               /* 24 bit immediate */
810#define R_H8500_IMM32   8               /* 32 bit immediate */
811#define R_H8500_HIGH16  9               /* high 16 bits of 32 bit immediate */
812
813/* W65 modes */
814
815#define R_W65_ABS8      1  /* addr & 0xff               */
816#define R_W65_ABS16     2  /* addr & 0xffff             */
817#define R_W65_ABS24     3  /* addr & 0xffffff           */
818
819#define R_W65_ABS8S8    4  /* (addr >> 8) & 0xff        */
820#define R_W65_ABS8S16   5  /* (addr >> 16) & 0xff       */
821
822#define R_W65_ABS16S8   6  /* (addr >> 8) & 0ffff       */
823#define R_W65_ABS16S16  7  /* (addr >> 16) & 0ffff      */
824
825#define R_W65_PCR8      8
826#define R_W65_PCR16     9
827
828#define R_W65_DP       10  /* direct page 8 bits only   */
829
830#endif /* GNU_COFF_INTERNAL_H */
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