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internal.h @ 444

Last change on this file since 444 was 444, checked in by satin@…, 6 years ago
add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
File size: 30.1 KB

Line
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
36	struct 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
64	struct 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. */
113	typedef 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
151	struct 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" ********************/
212	struct 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
364	struct 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
420	struct 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
436	struct 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
510	union 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
656	struct 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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