Annotation of src/external/gpl3/binutils/dist/include/coff/internal.h, Revision 1.1.1.1
1.1 skrll 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
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: struct internal_filehdr
62: {
63: struct internal_extra_pe_filehdr pe;
64:
65: /* Standard coff internal info. */
66: unsigned short f_magic; /* magic number */
67: unsigned short f_nscns; /* number of sections */
68: long f_timdat; /* time & date stamp */
69: bfd_vma f_symptr; /* file pointer to symtab */
70: long f_nsyms; /* number of symtab entries */
71: unsigned short f_opthdr; /* sizeof(optional hdr) */
72: unsigned short f_flags; /* flags */
73: unsigned short f_target_id; /* (TI COFF specific) */
74: };
75:
76:
77: /* Bits for f_flags:
78: F_RELFLG relocation info stripped from file
79: F_EXEC file is executable (no unresolved external references)
80: F_LNNO line numbers stripped from file
81: F_LSYMS local symbols stripped from file
82: F_AR16WR file is 16-bit little-endian
83: F_AR32WR file is 32-bit little-endian
84: F_AR32W file is 32-bit big-endian
85: F_DYNLOAD rs/6000 aix: dynamically loadable w/imports & exports
86: F_SHROBJ rs/6000 aix: file is a shared object
87: F_DLL PE format DLL. */
88:
89: #define F_RELFLG (0x0001)
90: #define F_EXEC (0x0002)
91: #define F_LNNO (0x0004)
92: #define F_LSYMS (0x0008)
93: #define F_AR16WR (0x0080)
94: #define F_AR32WR (0x0100)
95: #define F_AR32W (0x0200)
96: #define F_DYNLOAD (0x1000)
97: #define F_SHROBJ (0x2000)
98: #define F_DLL (0x2000)
99:
100: /* Extra structure which is used in the optional header. */
101: typedef struct _IMAGE_DATA_DIRECTORY
102: {
103: bfd_vma VirtualAddress;
104: long Size;
105: } IMAGE_DATA_DIRECTORY;
106: #define PE_EXPORT_TABLE 0
107: #define PE_IMPORT_TABLE 1
108: #define PE_RESOURCE_TABLE 2
109: #define PE_EXCEPTION_TABLE 3
110: #define PE_CERTIFICATE_TABLE 4
111: #define PE_BASE_RELOCATION_TABLE 5
112: #define PE_DEBUG_DATA 6
113: #define PE_ARCHITECTURE 7
114: #define PE_GLOBAL_PTR 8
115: #define PE_TLS_TABLE 9
116: #define PE_LOAD_CONFIG_TABLE 10
117: #define PE_BOUND_IMPORT_TABLE 11
118: #define PE_IMPORT_ADDRESS_TABLE 12
119: #define PE_DELAY_IMPORT_DESCRIPTOR 13
120: #define PE_CLR_RUNTIME_HEADER 14
121: /* DataDirectory[15] is currently reserved, so no define. */
122: #define IMAGE_NUMBEROF_DIRECTORY_ENTRIES 16
123:
124: /* Default image base for NT. */
125: #define NT_EXE_IMAGE_BASE 0x400000
126: #define NT_DLL_IMAGE_BASE 0x10000000
127:
128: /* Default image base for BeOS. */
129: #define BEOS_EXE_IMAGE_BASE 0x80000000
130: #define BEOS_DLL_IMAGE_BASE 0x10000000
131:
132: /* Extra stuff in a PE aouthdr */
133:
134: #define PE_DEF_SECTION_ALIGNMENT 0x1000
135: #ifndef PE_DEF_FILE_ALIGNMENT
136: # define PE_DEF_FILE_ALIGNMENT 0x200
137: #endif
138:
139: struct internal_extra_pe_aouthdr
140: {
141: /* FIXME: The following entries are in AOUTHDR. But they aren't
142: available internally in bfd. We add them here so that objdump
143: can dump them. */
144: /* The state of the image file */
145: short Magic;
146: /* Linker major version number */
147: char MajorLinkerVersion;
148: /* Linker minor version number */
149: char MinorLinkerVersion;
150: /* Total size of all code sections */
151: long SizeOfCode;
152: /* Total size of all initialized data sections */
153: long SizeOfInitializedData;
154: /* Total size of all uninitialized data sections */
155: long SizeOfUninitializedData;
156: /* Address of entry point relative to image base. */
157: bfd_vma AddressOfEntryPoint;
158: /* Address of the first code section relative to image base. */
159: bfd_vma BaseOfCode;
160: /* Address of the first data section relative to image base. */
161: bfd_vma BaseOfData;
162:
163: /* PE stuff */
164: bfd_vma ImageBase; /* address of specific location in memory that
165: file is located, NT default 0x10000 */
166:
167: bfd_vma SectionAlignment; /* section alignment default 0x1000 */
168: bfd_vma FileAlignment; /* file alignment default 0x200 */
169: short MajorOperatingSystemVersion; /* minimum version of the operating */
170: short MinorOperatingSystemVersion; /* system req'd for exe, default to 1*/
171: short MajorImageVersion; /* user defineable field to store version of */
172: short MinorImageVersion; /* exe or dll being created, default to 0 */
173: short MajorSubsystemVersion; /* minimum subsystem version required to */
174: short MinorSubsystemVersion; /* run exe; default to 3.1 */
175: long Reserved1; /* seems to be 0 */
176: long SizeOfImage; /* size of memory to allocate for prog */
177: long SizeOfHeaders; /* size of PE header and section table */
178: long CheckSum; /* set to 0 */
179: short Subsystem;
180:
181: /* type of subsystem exe uses for user interface,
182: possible values:
183: 1 - NATIVE Doesn't require a subsystem
184: 2 - WINDOWS_GUI runs in Windows GUI subsystem
185: 3 - WINDOWS_CUI runs in Windows char sub. (console app)
186: 5 - OS2_CUI runs in OS/2 character subsystem
187: 7 - POSIX_CUI runs in Posix character subsystem */
188: short DllCharacteristics; /* flags for DLL init, use 0 */
189: bfd_vma SizeOfStackReserve; /* amount of memory to reserve */
190: bfd_vma SizeOfStackCommit; /* amount of memory initially committed for
191: initial thread's stack, default is 0x1000 */
192: bfd_vma SizeOfHeapReserve; /* amount of virtual memory to reserve and */
193: bfd_vma SizeOfHeapCommit; /* commit, don't know what to defaut it to */
194: long LoaderFlags; /* can probably set to 0 */
195: long NumberOfRvaAndSizes; /* number of entries in next entry, 16 */
196: IMAGE_DATA_DIRECTORY DataDirectory[IMAGE_NUMBEROF_DIRECTORY_ENTRIES];
197: };
198:
199: /********************** AOUT "OPTIONAL HEADER" **********************/
200: struct internal_aouthdr
201: {
202: short magic; /* type of file */
203: short vstamp; /* version stamp */
204: bfd_vma tsize; /* text size in bytes, padded to FW bdry*/
205: bfd_vma dsize; /* initialized data " " */
206: bfd_vma bsize; /* uninitialized data " " */
207: bfd_vma entry; /* entry pt. */
208: bfd_vma text_start; /* base of text used for this file */
209: bfd_vma data_start; /* base of data used for this file */
210:
211: /* i960 stuff */
212: unsigned long tagentries; /* number of tag entries to follow */
213:
214: /* RS/6000 stuff */
215: bfd_vma o_toc; /* address of TOC */
216: short o_snentry; /* section number for entry point */
217: short o_sntext; /* section number for text */
218: short o_sndata; /* section number for data */
219: short o_sntoc; /* section number for toc */
220: short o_snloader; /* section number for loader section */
221: short o_snbss; /* section number for bss */
222: short o_algntext; /* max alignment for text */
223: short o_algndata; /* max alignment for data */
224: short o_modtype; /* Module type field, 1R,RE,RO */
225: short o_cputype; /* Encoded CPU type */
226: bfd_vma o_maxstack; /* max stack size allowed. */
227: bfd_vma o_maxdata; /* max data size allowed. */
228:
229: /* ECOFF stuff */
230: bfd_vma bss_start; /* Base of bss section. */
231: bfd_vma gp_value; /* GP register value. */
232: unsigned long gprmask; /* General registers used. */
233: unsigned long cprmask[4]; /* Coprocessor registers used. */
234: unsigned long fprmask; /* Floating pointer registers used. */
235:
236: /* Apollo stuff */
237: long o_inlib; /* inlib data */
238: long o_sri; /* Static Resource Information */
239: long vid[2]; /* Version id */
240:
241: struct internal_extra_pe_aouthdr pe;
242: };
243:
244: /********************** STORAGE CLASSES **********************/
245:
246: /* This used to be defined as -1, but now n_sclass is unsigned. */
247: #define C_EFCN 0xff /* physical end of function */
248: #define C_NULL 0
249: #define C_AUTO 1 /* automatic variable */
250: #define C_EXT 2 /* external symbol */
251: #define C_STAT 3 /* static */
252: #define C_REG 4 /* register variable */
253: #define C_EXTDEF 5 /* external definition */
254: #define C_LABEL 6 /* label */
255: #define C_ULABEL 7 /* undefined label */
256: #define C_MOS 8 /* member of structure */
257: #define C_ARG 9 /* function argument */
258: #define C_STRTAG 10 /* structure tag */
259: #define C_MOU 11 /* member of union */
260: #define C_UNTAG 12 /* union tag */
261: #define C_TPDEF 13 /* type definition */
262: #define C_USTATIC 14 /* undefined static */
263: #define C_ENTAG 15 /* enumeration tag */
264: #define C_MOE 16 /* member of enumeration */
265: #define C_REGPARM 17 /* register parameter */
266: #define C_FIELD 18 /* bit field */
267: #define C_AUTOARG 19 /* auto argument */
268: #define C_LASTENT 20 /* dummy entry (end of block) */
269: #define C_BLOCK 100 /* ".bb" or ".eb" */
270: #define C_FCN 101 /* ".bf" or ".ef" */
271: #define C_EOS 102 /* end of structure */
272: #define C_FILE 103 /* file name */
273: #define C_LINE 104 /* line # reformatted as symbol table entry */
274: #define C_ALIAS 105 /* duplicate tag */
275: #define C_HIDDEN 106 /* ext symbol in dmert public lib */
276:
277: #if defined _AIX52 || defined AIX_WEAK_SUPPORT
278: #define C_WEAKEXT 111 /* weak symbol -- AIX standard. */
279: #else
280: #define C_WEAKEXT 127 /* weak symbol -- GNU extension. */
281: #endif
282:
283: /* New storage classes for TI COFF */
284: #define C_UEXT 19 /* Tentative external definition */
285: #define C_STATLAB 20 /* Static load time label */
286: #define C_EXTLAB 21 /* External load time label */
287: #define C_SYSTEM 23 /* System Wide variable */
288:
289: /* New storage classes for WINDOWS_NT */
290: #define C_SECTION 104 /* section name */
291: #define C_NT_WEAK 105 /* weak external */
292:
293: /* New storage classes for 80960 */
294:
295: /* C_LEAFPROC is obsolete. Use C_LEAFEXT or C_LEAFSTAT */
296: #define C_LEAFPROC 108 /* Leaf procedure, "call" via BAL */
297:
298: #define C_SCALL 107 /* Procedure reachable via system call */
299: #define C_LEAFEXT 108 /* External leaf */
300: #define C_LEAFSTAT 113 /* Static leaf */
301: #define C_OPTVAR 109 /* Optimized variable */
302: #define C_DEFINE 110 /* Preprocessor #define */
303: #define C_PRAGMA 111 /* Advice to compiler or linker */
304: #define C_SEGMENT 112 /* 80960 segment name */
305:
306: /* Storage classes for m88k */
307: #define C_SHADOW 107 /* shadow symbol */
308: #define C_VERSION 108 /* coff version symbol */
309:
310: /* New storage classes for RS/6000 */
311: #define C_HIDEXT 107 /* Un-named external symbol */
312: #define C_BINCL 108 /* Marks beginning of include file */
313: #define C_EINCL 109 /* Marks ending of include file */
314:
315: /* storage classes for stab symbols for RS/6000 */
316: #define C_GSYM (0x80)
317: #define C_LSYM (0x81)
318: #define C_PSYM (0x82)
319: #define C_RSYM (0x83)
320: #define C_RPSYM (0x84)
321: #define C_STSYM (0x85)
322: #define C_TCSYM (0x86)
323: #define C_BCOMM (0x87)
324: #define C_ECOML (0x88)
325: #define C_ECOMM (0x89)
326: #define C_DECL (0x8c)
327: #define C_ENTRY (0x8d)
328: #define C_FUN (0x8e)
329: #define C_BSTAT (0x8f)
330: #define C_ESTAT (0x90)
331:
332: /* Storage classes for Thumb symbols */
333: #define C_THUMBEXT (128 + C_EXT) /* 130 */
334: #define C_THUMBSTAT (128 + C_STAT) /* 131 */
335: #define C_THUMBLABEL (128 + C_LABEL) /* 134 */
336: #define C_THUMBEXTFUNC (C_THUMBEXT + 20) /* 150 */
337: #define C_THUMBSTATFUNC (C_THUMBSTAT + 20) /* 151 */
338:
339: /********************** SECTION HEADER **********************/
340:
341: #define SCNNMLEN (8)
342:
343: struct internal_scnhdr
344: {
345: char s_name[SCNNMLEN]; /* section name */
346:
347: /* Physical address, aliased s_nlib.
348: In the pei format, this field is the virtual section size
349: (the size of the section after being loaded int memory),
350: NOT the physical address. */
351: bfd_vma s_paddr;
352:
353: bfd_vma s_vaddr; /* virtual address */
354: bfd_vma s_size; /* section size */
355: bfd_vma s_scnptr; /* file ptr to raw data for section */
356: bfd_vma s_relptr; /* file ptr to relocation */
357: bfd_vma s_lnnoptr; /* file ptr to line numbers */
358: unsigned long s_nreloc; /* number of relocation entries */
359: unsigned long s_nlnno; /* number of line number entries*/
360: long s_flags; /* flags */
361: long s_align; /* used on I960 */
362: unsigned char s_page; /* TI COFF load page */
363: };
364:
365: /* s_flags "type". */
366: #define STYP_REG (0x0000) /* "regular": allocated, relocated, loaded */
367: #define STYP_DSECT (0x0001) /* "dummy": relocated only*/
368: #define STYP_NOLOAD (0x0002) /* "noload": allocated, relocated, not loaded */
369: #define STYP_GROUP (0x0004) /* "grouped": formed of input sections */
370: #define STYP_PAD (0x0008) /* "padding": not allocated, not relocated, loaded */
371: #define STYP_COPY (0x0010) /* "copy": for decision function used by field update; not allocated, not relocated,
372: loaded; reloc & lineno entries processed normally */
373: #define STYP_TEXT (0x0020) /* section contains text only */
374: #define S_SHRSEG (0x0020) /* In 3b Update files (output of ogen), sections which appear in SHARED segments of the Pfile
375: will have the S_SHRSEG flag set by ogen, to inform dufr that updating 1 copy of the proc. will
376: update all process invocations. */
377: #define STYP_DATA (0x0040) /* section contains data only */
378: #define STYP_BSS (0x0080) /* section contains bss only */
379: #define S_NEWFCN (0x0100) /* In a minimal file or an update file, a new function (as compared with a replaced function) */
380: #define STYP_INFO (0x0200) /* comment: not allocated not relocated, not loaded */
381: #define STYP_OVER (0x0400) /* overlay: relocated not allocated or loaded */
382: #define STYP_LIB (0x0800) /* for .lib: same as INFO */
383: #define STYP_MERGE (0x2000) /* merge section -- combines with text, data or bss sections only */
384: #define STYP_REVERSE_PAD (0x4000) /* section will be padded with no-op instructions
385: wherever padding is necessary and there is a
386: word of contiguous bytes beginning on a word
387: boundary. */
388:
389: #define STYP_LIT 0x8020 /* Literal data (like STYP_TEXT) */
390:
391:
392: /********************** LINE NUMBERS **********************/
393:
394: /* 1 line number entry for every "breakpointable" source line in a section.
395: Line numbers are grouped on a per function basis; first entry in a function
396: grouping will have l_lnno = 0 and in place of physical address will be the
397: symbol table index of the function name. */
398:
399: struct internal_lineno
400: {
401: union
402: {
403: bfd_signed_vma l_symndx; /* function name symbol index, iff l_lnno == 0*/
404: bfd_signed_vma l_paddr; /* (physical) address of line number */
405: } l_addr;
406: unsigned long l_lnno; /* line number */
407: };
408:
409: /********************** SYMBOLS **********************/
410:
411: #define SYMNMLEN 8 /* # characters in a symbol name */
412: #define FILNMLEN 14 /* # characters in a file name */
413: #define DIMNUM 4 /* # array dimensions in auxiliary entry */
414:
415: struct internal_syment
416: {
417: union
418: {
419: char _n_name[SYMNMLEN]; /* old COFF version */
420: struct
421: {
422: bfd_hostptr_t _n_zeroes; /* new == 0 */
423: bfd_hostptr_t _n_offset; /* offset into string table */
424: } _n_n;
425: char *_n_nptr[2]; /* allows for overlaying */
426: } _n;
427: bfd_vma n_value; /* value of symbol */
428: short n_scnum; /* section number */
429: unsigned short n_flags; /* copy of flags from filhdr */
430: unsigned short n_type; /* type and derived type */
431: unsigned char n_sclass; /* storage class */
432: unsigned char n_numaux; /* number of aux. entries */
433: };
434:
435: #define n_name _n._n_name
436: #define n_zeroes _n._n_n._n_zeroes
437: #define n_offset _n._n_n._n_offset
438:
439: /* Relocatable symbols have number of the section in which they are defined,
440: or one of the following: */
441:
442: #define N_UNDEF ((short)0) /* undefined symbol */
443: #define N_ABS ((short)-1) /* value of symbol is absolute */
444: #define N_DEBUG ((short)-2) /* debugging symbol -- value is meaningless */
445: #define N_TV ((short)-3) /* indicates symbol needs preload transfer vector */
446: #define P_TV ((short)-4) /* indicates symbol needs postload transfer vector*/
447:
448: /* Type of a symbol, in low N bits of the word. */
449:
450: #define T_NULL 0
451: #define T_VOID 1 /* function argument (only used by compiler) */
452: #define T_CHAR 2 /* character */
453: #define T_SHORT 3 /* short integer */
454: #define T_INT 4 /* integer */
455: #define T_LONG 5 /* long integer */
456: #define T_FLOAT 6 /* floating point */
457: #define T_DOUBLE 7 /* double word */
458: #define T_STRUCT 8 /* structure */
459: #define T_UNION 9 /* union */
460: #define T_ENUM 10 /* enumeration */
461: #define T_MOE 11 /* member of enumeration*/
462: #define T_UCHAR 12 /* unsigned character */
463: #define T_USHORT 13 /* unsigned short */
464: #define T_UINT 14 /* unsigned integer */
465: #define T_ULONG 15 /* unsigned long */
466: #define T_LNGDBL 16 /* long double */
467:
468: /* Derived types, in n_type. */
469:
470: #define DT_NON (0) /* no derived type */
471: #define DT_PTR (1) /* pointer */
472: #define DT_FCN (2) /* function */
473: #define DT_ARY (3) /* array */
474:
475: #define BTYPE(x) ((x) & N_BTMASK)
476: #define DTYPE(x) (((x) & N_TMASK) >> N_BTSHFT)
477:
478: #define ISPTR(x) \
479: (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_PTR << N_BTSHFT))
480: #define ISFCN(x) \
481: (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_FCN << N_BTSHFT))
482: #define ISARY(x) \
483: (((unsigned long) (x) & N_TMASK) == ((unsigned long) DT_ARY << N_BTSHFT))
484: #define ISTAG(x) \
485: ((x) == C_STRTAG || (x) == C_UNTAG || (x) == C_ENTAG)
486: #define DECREF(x) \
487: ((((x) >> N_TSHIFT) & ~ N_BTMASK) | ((x) & N_BTMASK))
488:
489: union internal_auxent
490: {
491: struct
492: {
493:
494: union
495: {
496: long l; /* str, un, or enum tag indx */
497: struct coff_ptr_struct *p;
498: } x_tagndx;
499:
500: union
501: {
502: struct
503: {
504: unsigned short x_lnno; /* declaration line number */
505: unsigned short x_size; /* str/union/array size */
506: } x_lnsz;
507: long x_fsize; /* size of function */
508: } x_misc;
509:
510: union
511: {
512: struct
513: { /* if ISFCN, tag, or .bb */
514: bfd_signed_vma x_lnnoptr; /* ptr to fcn line # */
515: union
516: { /* entry ndx past block end */
517: long l;
518: struct coff_ptr_struct *p;
519: } x_endndx;
520: } x_fcn;
521:
522: struct
523: { /* if ISARY, up to 4 dimen. */
524: unsigned short x_dimen[DIMNUM];
525: } x_ary;
526: } x_fcnary;
527:
528: unsigned short x_tvndx; /* tv index */
529: } x_sym;
530:
531: union
532: {
533: char x_fname[FILNMLEN];
534: struct
535: {
536: long x_zeroes;
537: long x_offset;
538: } x_n;
539: } x_file;
540:
541: struct
542: {
543: long x_scnlen; /* section length */
544: unsigned short x_nreloc; /* # relocation entries */
545: unsigned short x_nlinno; /* # line numbers */
546: unsigned long x_checksum; /* section COMDAT checksum for PE */
547: unsigned short x_associated; /* COMDAT associated section index for PE */
548: unsigned char x_comdat; /* COMDAT selection number for PE */
549: } x_scn;
550:
551: struct
552: {
553: long x_tvfill; /* tv fill value */
554: unsigned short x_tvlen; /* length of .tv */
555: unsigned short x_tvran[2]; /* tv range */
556: } x_tv; /* info about .tv section (in auxent of symbol .tv)) */
557:
558: /******************************************
559: * RS/6000-specific auxent - last auxent for every external symbol
560: ******************************************/
561: struct
562: {
563: union
564: { /* csect length or enclosing csect */
565: bfd_signed_vma l;
566: struct coff_ptr_struct *p;
567: } x_scnlen;
568: long x_parmhash; /* parm type hash index */
569: unsigned short x_snhash; /* sect num with parm hash */
570: unsigned char x_smtyp; /* symbol align and type */
571: /* 0-4 - Log 2 of alignment */
572: /* 5-7 - symbol type */
573: unsigned char x_smclas; /* storage mapping class */
574: long x_stab; /* dbx stab info index */
575: unsigned short x_snstab; /* sect num with dbx stab */
576: } x_csect; /* csect definition information */
577:
578: /* x_smtyp values: */
579:
580: #define SMTYP_ALIGN(x) ((x) >> 3) /* log2 of alignment */
581: #define SMTYP_SMTYP(x) ((x) & 0x7) /* symbol type */
582: /* Symbol type values: */
583: #define XTY_ER 0 /* External reference */
584: #define XTY_SD 1 /* Csect definition */
585: #define XTY_LD 2 /* Label definition */
586: #define XTY_CM 3 /* .BSS */
587: #define XTY_EM 4 /* Error message */
588: #define XTY_US 5 /* "Reserved for internal use" */
589:
590: /* x_smclas values: */
591:
592: #define XMC_PR 0 /* Read-only program code */
593: #define XMC_RO 1 /* Read-only constant */
594: #define XMC_DB 2 /* Read-only debug dictionary table */
595: #define XMC_TC 3 /* Read-write general TOC entry */
596: #define XMC_UA 4 /* Read-write unclassified */
597: #define XMC_RW 5 /* Read-write data */
598: #define XMC_GL 6 /* Read-only global linkage */
599: #define XMC_XO 7 /* Read-only extended operation */
600: #define XMC_SV 8 /* Read-only supervisor call */
601: #define XMC_BS 9 /* Read-write BSS */
602: #define XMC_DS 10 /* Read-write descriptor csect */
603: #define XMC_UC 11 /* Read-write unnamed Fortran common */
604: #define XMC_TI 12 /* Read-only traceback index csect */
605: #define XMC_TB 13 /* Read-only traceback table csect */
606: /* 14 ??? */
607: #define XMC_TC0 15 /* Read-write TOC anchor */
608: #define XMC_TD 16 /* Read-write data in TOC */
609:
610: /******************************************
611: * I960-specific *2nd* aux. entry formats
612: ******************************************/
613: struct
614: {
615: /* This is a very old typo that keeps getting propagated. */
616: #define x_stdindx x_stindx
617: long x_stindx; /* sys. table entry */
618: } x_sc; /* system call entry */
619:
620: struct
621: {
622: unsigned long x_balntry; /* BAL entry point */
623: } x_bal; /* BAL-callable function */
624:
625: struct
626: {
627: unsigned long x_timestamp; /* time stamp */
628: char x_idstring[20]; /* producer identity string */
629: } x_ident; /* Producer ident info */
630:
631: };
632:
633: /********************** RELOCATION DIRECTIVES **********************/
634:
635: struct internal_reloc
636: {
637: bfd_vma r_vaddr; /* Virtual address of reference */
638: long r_symndx; /* Index into symbol table */
639: unsigned short r_type; /* Relocation type */
640: unsigned char r_size; /* Used by RS/6000 and ECOFF */
641: unsigned char r_extern; /* Used by ECOFF */
642: unsigned long r_offset; /* Used by Alpha ECOFF, SPARC, others */
643: };
644:
645: /* X86-64 relocations. */
646: #define R_AMD64_ABS 0 /* Reference is absolute, no relocation is necessary. */
647: #define R_AMD64_DIR64 1 /* 64-bit address (VA). */
648: #define R_AMD64_DIR32 2 /* 32-bit address (VA) R_DIR32. */
649: #define R_AMD64_IMAGEBASE 3 /* 32-bit absolute ref w/o base R_IMAGEBASE. */
650: #define R_AMD64_PCRLONG 4 /* 32-bit relative address from byte following reloc R_PCRLONG. */
651: #define R_AMD64_PCRLONG_1 5 /* 32-bit relative address from byte distance 1 from reloc. */
652: #define R_AMD64_PCRLONG_2 6 /* 32-bit relative address from byte distance 2 from reloc. */
653: #define R_AMD64_PCRLONG_3 7 /* 32-bit relative address from byte distance 3 from reloc. */
654: #define R_AMD64_PCRLONG_4 8 /* 32-bit relative address from byte distance 4 from reloc. */
655: #define R_AMD64_PCRLONG_5 9 /* 32-bit relative address from byte distance 5 from reloc. */
656: #define R_AMD64_SECTION 10 /* Section index. */
657: #define R_AMD64_SECREL 11 /* 32 bit offset from base of section containing target R_SECREL. */
658: #define R_AMD64_SECREL7 12 /* 7 bit unsigned offset from base of section containing target. */
659: #define R_AMD64_TOKEN 13 /* 32 bit metadata token. */
660: #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. */
661:
662: /* i386 Relocations. */
663:
664: #define R_DIR16 1
665: #define R_REL24 5
666: #define R_DIR32 6
667: #define R_IMAGEBASE 7
668: #define R_SECREL32 11
669: #define R_RELBYTE 15
670: #define R_RELWORD 16
671: #define R_RELLONG 17
672: #define R_PCRBYTE 18
673: #define R_PCRWORD 19
674: #define R_PCRLONG 20
675: #define R_PCR24 21
676: #define R_IPRSHORT 24
677: #define R_IPRLONG 26
678: #define R_GETSEG 29
679: #define R_GETPA 30
680: #define R_TAGWORD 31
681: #define R_JUMPTARG 32 /* strange 29k 00xx00xx reloc */
682: #define R_PARTLS16 32
683: #define R_PARTMS8 33
684:
685: #define R_PCR16L 128
686: #define R_PCR26L 129
687: #define R_VRT16 130
688: #define R_HVRT16 131
689: #define R_LVRT16 132
690: #define R_VRT32 133
691:
692:
693: /* This reloc identifies mov.b instructions with a 16bit absolute
694: address. The linker tries to turn insns with this reloc into
695: an absolute 8-bit address. */
696: #define R_MOV16B1 0x41
697:
698: /* This reloc identifies mov.b instructions which had a 16bit
699: absolute address which have been shortened into a 8-bit
700: absolute address. */
701: #define R_MOV16B2 0x42
702:
703: /* This reloc identifies jmp insns with a 16bit target address;
704: the linker tries to turn these insns into bra insns with
705: an 8bit pc-relative target. */
706: #define R_JMP1 0x43
707:
708: /* This reloc identifies a bra with an 8-bit pc-relative
709: target that was formerly a jmp insn with a 16bit target. */
710: #define R_JMP2 0x44
711:
712: /* ??? */
713: #define R_RELLONG_NEG 0x45
714:
715: /* This reloc identifies jmp insns with a 24bit target address;
716: the linker tries to turn these insns into bra insns with
717: an 8bit pc-relative target. */
718: #define R_JMPL1 0x46
719:
720: /* This reloc identifies a bra with an 8-bit pc-relative
721: target that was formerly a jmp insn with a 24bit target. */
722: #define R_JMPL2 0x47
723:
724: /* This reloc identifies mov.b instructions with a 24bit absolute
725: address. The linker tries to turn insns with this reloc into
726: an absolute 8-bit address. */
727:
728: #define R_MOV24B1 0x48
729:
730: /* This reloc identifies mov.b instructions which had a 24bit
731: absolute address which have been shortened into a 8-bit
732: absolute address. */
733: #define R_MOV24B2 0x49
734:
735: /* An h8300 memory indirect jump/call. Forces the address of the jump/call
736: target into the function vector (in page zero), and the address of the
737: vector entry to be placed in the jump/call instruction. */
738: #define R_MEM_INDIRECT 0x4a
739:
740: /* This reloc identifies a 16bit pc-relative branch target which was
741: shortened into an 8bit pc-relative branch target. */
742: #define R_PCRWORD_B 0x4b
743:
744: /* This reloc identifies mov.[wl] instructions with a 32/24 bit
745: absolute address; the linker may turn this into a mov.[wl]
746: insn with a 16bit absolute address. */
747: #define R_MOVL1 0x4c
748:
749: /* This reloc identifies mov.[wl] insns which formerly had
750: a 32/24bit absolute address and now have a 16bit absolute address. */
751: #define R_MOVL2 0x4d
752:
753: /* This reloc identifies a bCC:8 which will have it's condition
754: inverted and its target redirected to the target of the branch
755: in the following insn. */
756: #define R_BCC_INV 0x4e
757:
758: /* This reloc identifies a jmp instruction that has been deleted. */
759: #define R_JMP_DEL 0x4f
760:
761: /* Z8k modes */
762: #define R_IMM16 0x01 /* 16 bit abs */
763: #define R_JR 0x02 /* jr 8 bit disp */
764: #define R_IMM4L 0x23 /* low nibble */
765: #define R_IMM8 0x22 /* 8 bit abs */
766: #define R_IMM32 R_RELLONG /* 32 bit abs */
767: #define R_CALL R_DA /* Absolute address which could be a callr */
768: #define R_JP R_DA /* Absolute address which could be a jp */
769: #define R_REL16 0x04 /* 16 bit PC rel */
770: #define R_CALLR 0x05 /* callr 12 bit disp */
771: #define R_SEG 0x10 /* set if in segmented mode */
772: #define R_IMM4H 0x24 /* high nibble */
773: #define R_DISP7 0x25 /* djnz displacement */
774:
775: /* Z80 modes */
776: #define R_OFF8 0x32 /* 8 bit signed abs, for (i[xy]+d) */
777: #define R_IMM24 0x33 /* 24 bit abs */
778: /* R_JR, R_IMM8, R_IMM16, R_IMM32 - as for Z8k */
779:
780: /* H8500 modes */
781:
782: #define R_H8500_IMM8 1 /* 8 bit immediate */
783: #define R_H8500_IMM16 2 /* 16 bit immediate */
784: #define R_H8500_PCREL8 3 /* 8 bit pcrel */
785: #define R_H8500_PCREL16 4 /* 16 bit pcrel */
786: #define R_H8500_HIGH8 5 /* high 8 bits of 24 bit address */
787: #define R_H8500_LOW16 7 /* low 16 bits of 24 bit immediate */
788: #define R_H8500_IMM24 6 /* 24 bit immediate */
789: #define R_H8500_IMM32 8 /* 32 bit immediate */
790: #define R_H8500_HIGH16 9 /* high 16 bits of 32 bit immediate */
791:
792: /* W65 modes */
793:
794: #define R_W65_ABS8 1 /* addr & 0xff */
795: #define R_W65_ABS16 2 /* addr & 0xffff */
796: #define R_W65_ABS24 3 /* addr & 0xffffff */
797:
798: #define R_W65_ABS8S8 4 /* (addr >> 8) & 0xff */
799: #define R_W65_ABS8S16 5 /* (addr >> 16) & 0xff */
800:
801: #define R_W65_ABS16S8 6 /* (addr >> 8) & 0ffff */
802: #define R_W65_ABS16S16 7 /* (addr >> 16) & 0ffff */
803:
804: #define R_W65_PCR8 8
805: #define R_W65_PCR16 9
806:
807: #define R_W65_DP 10 /* direct page 8 bits only */
808:
809: #endif /* GNU_COFF_INTERNAL_H */
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