Rename PowerPC64 pcrel GOT TLS relocations
[deliverable/binutils-gdb.git] / gas / config / obj-coff.h
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1/* coff object file format
2 Copyright (C) 1989-2020 Free Software Foundation, Inc.
3
4 This file is part of GAS.
5
6 GAS is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 3, or (at your option)
9 any later version.
10
11 GAS is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
15
16 You should have received a copy of the GNU General Public License
17 along with GAS; see the file COPYING. If not, write to the Free
18 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
19 02110-1301, USA. */
20
21#ifndef OBJ_FORMAT_H
22#define OBJ_FORMAT_H
23
24#define OBJ_COFF 1
25
26#include "targ-cpu.h"
27
28/* This internal_lineno crap is to stop namespace pollution from the
29 bfd internal coff headerfile. */
30#define internal_lineno bfd_internal_lineno
31#include "coff/internal.h"
32#undef internal_lineno
33
34/* CPU-specific setup: */
35
36#ifdef TC_ARM
37#include "coff/arm.h"
38#ifndef TARGET_FORMAT
39#define TARGET_FORMAT "coff-arm"
40#endif
41#endif
42
43#ifdef TC_PPC
44#ifdef TE_PE
45#include "coff/powerpc.h"
46#else
47#include "coff/rs6000.h"
48#endif
49#endif
50
51#ifdef TC_I386
52#ifdef TE_PEP
53#include "coff/x86_64.h"
54#else
55#include "coff/i386.h"
56#endif
57
58#ifndef TARGET_FORMAT
59#ifdef TE_PEP
60#define TARGET_FORMAT "coff-x86-64"
61#else
62#define TARGET_FORMAT "coff-i386"
63#endif
64#endif
65#endif
66
67#ifdef TC_Z80
68#include "coff/z80.h"
69#define TARGET_FORMAT "coff-z80"
70#endif
71
72#ifdef TC_Z8K
73#include "coff/z8k.h"
74#define TARGET_FORMAT "coff-z8k"
75#endif
76
77#ifdef TC_SH
78
79#ifdef TE_PE
80#define COFF_WITH_PE
81#endif
82
83#include "coff/sh.h"
84
85#ifdef TE_PE
86#define TARGET_FORMAT "pe-shl"
87#else
88
89#define TARGET_FORMAT \
90 (!target_big_endian \
91 ? (sh_small ? "coff-shl-small" : "coff-shl") \
92 : (sh_small ? "coff-sh-small" : "coff-sh"))
93
94#endif
95#endif
96
97#ifdef TC_TIC30
98#include "coff/tic30.h"
99#define TARGET_FORMAT "coff-tic30"
100#endif
101
102#ifdef TC_TIC4X
103#include "coff/tic4x.h"
104#define TARGET_FORMAT "coff2-tic4x"
105#endif
106
107#ifdef TC_TIC54X
108#include "coff/tic54x.h"
109#define TARGET_FORMAT "coff1-c54x"
110#endif
111
112#ifdef TC_MCORE
113#include "coff/mcore.h"
114#ifndef TARGET_FORMAT
115#define TARGET_FORMAT "pe-mcore"
116#endif
117#endif
118
119#ifdef TE_PE
120#define obj_set_weak_hook pecoff_obj_set_weak_hook
121#define obj_clear_weak_hook pecoff_obj_clear_weak_hook
122#endif
123
124#ifndef OBJ_COFF_MAX_AUXENTRIES
125#define OBJ_COFF_MAX_AUXENTRIES 1
126#endif
127
128#define obj_symbol_new_hook coff_obj_symbol_new_hook
129#define obj_symbol_clone_hook coff_obj_symbol_clone_hook
130#define obj_read_begin_hook coff_obj_read_begin_hook
131
132#include "bfd/libcoff.h"
133
134#define OUTPUT_FLAVOR bfd_target_coff_flavour
135
136/* Alter the field names, for now, until we've fixed up the other
137 references to use the new name. */
138#define OBJ_SYMFIELD_TYPE unsigned long
139#define sy_obj sy_obj_flags
140
141/* We can't use the predefined section symbols in bfd/section.c, as
142 COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */
143#ifndef obj_sec_sym_ok_for_reloc
144#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0)
145#endif
146
147#define SYM_AUXENT(S) \
148 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent)
149#define SYM_AUXINFO(S) \
150 (&coffsymbol (symbol_get_bfdsym (S))->native[1])
151
152/* The number of auxiliary entries. */
153#define S_GET_NUMBER_AUXILIARY(s) \
154 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux)
155/* The number of auxiliary entries. */
156#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v))
157
158/* True if a symbol name is in the string table, i.e. its length is > 8. */
159#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0)
160
161/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */
162/* Omit the tv related fields. */
163/* Accessors. */
164
165#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l)
166#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno)
167#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size)
168#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize)
169#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr)
170#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx)
171#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)])
172#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname)
173#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen)
174#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc)
175#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno)
176
177#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v))
178#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v))
179#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v))
180#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v))
181#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v))
182#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN)
183#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v))
184#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v))
185#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v))
186
187/* Internal use only definitions. SF_ stands for symbol flags.
188
189 These values can be assigned to sy_symbol.ost_flags field of a symbolS. */
190
191#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */
192
193#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */
194#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */
195#define SF_STRING 0x00004000 /* Symbol name length > 8. */
196#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */
197
198#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */
199
200#define SF_FUNCTION 0x00010000 /* The symbol is a function. */
201#define SF_PROCESS 0x00020000 /* Process symbol before write. */
202#define SF_TAGGED 0x00040000 /* Is associated with a tag. */
203#define SF_TAG 0x00080000 /* Is a tag. */
204#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */
205#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */
206/* All other bits are unused. */
207
208/* Accessors. */
209#define SF_GET(s) (* symbol_get_obj (s))
210#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING)
211#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING)
212#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK)
213#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK)
214#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE)
215#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS)
216#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED)
217#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING)
218#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL)
219#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION)
220#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS)
221#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED)
222#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG)
223#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT)
224
225/* Modifiers. */
226#define SF_SET(s,v) (SF_GET (s) = (v))
227#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK))
228#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK))
229#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE)
230#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS)
231#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED)
232#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING)
233#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL)
234#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL)
235#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION)
236#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS)
237#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED)
238#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG)
239#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT)
240
241
242/* Line number handling. */
243extern int text_lineno_number;
244extern int coff_line_base;
245extern int coff_n_line_nos;
246extern symbolS *coff_last_function;
247
248#define obj_emit_lineno(WHERE, LINE, FILE_START) abort ()
249#define obj_app_file(name, app) c_dot_file_symbol (name, app)
250#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P)
251#define obj_frob_section(S) coff_frob_section (S)
252#define obj_frob_file_after_relocs() coff_frob_file_after_relocs ()
253#ifndef obj_adjust_symtab
254#define obj_adjust_symtab() coff_adjust_symtab ()
255#endif
256
257/* Forward the segment of a forwarded symbol, handle assignments that
258 just copy symbol values, etc. */
259#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES
260#ifndef TE_I386AIX
261#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
262 (SF_GET_GET_SEGMENT (dest) \
263 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
264 : 0)
265#else
266#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \
267 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \
268 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \
269 : 0)
270#endif
271#endif
272
273/* Sanity check. */
274
275extern const pseudo_typeS coff_pseudo_table[];
276
277#ifndef obj_pop_insert
278#define obj_pop_insert() pop_insert (coff_pseudo_table)
279#endif
280
281/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK
282 to redefine the symbol later on. This can happen if C symbols use
283 a prefix, and a symbol is defined both with and without the prefix,
284 as in start/_start/__start in gcc/libgcc1-test.c. */
285#define RESOLVE_SYMBOL_REDEFINITION(sym) \
286(SF_GET_GET_SEGMENT (sym) \
287 ? (sym->sy_frag = frag_now, \
288 S_SET_VALUE (sym, frag_now_fix ()), \
289 S_SET_SEGMENT (sym, now_seg), \
290 0) \
291 : 0)
292
293/* Stabs in a coff file go into their own section. */
294#define SEPARATE_STAB_SECTIONS 1
295
296/* We need 12 bytes at the start of the section to hold some initial
297 information. */
298#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg)
299
300/* Store the number of relocations in the section aux entry. */
301#define SET_SECTION_RELOCS(sec, relocs, n) \
302 SA_SET_SCN_NRELOC (section_symbol (sec), n)
303
304#define obj_app_file(name, app) c_dot_file_symbol (name, app)
305
306extern int S_SET_DATA_TYPE (symbolS *, int);
307extern int S_SET_STORAGE_CLASS (symbolS *, int);
308extern int S_GET_STORAGE_CLASS (symbolS *);
309extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *);
310extern void coff_add_linesym (symbolS *);
311extern void c_dot_file_symbol (const char *, int);
312extern void coff_frob_symbol (symbolS *, int *);
313extern void coff_adjust_symtab (void);
314extern void coff_frob_section (segT);
315extern void coff_adjust_section_syms (bfd *, asection *, void *);
316extern void coff_frob_file_after_relocs (void);
317extern void coff_obj_symbol_new_hook (symbolS *);
318extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *);
319extern void coff_obj_read_begin_hook (void);
320#ifdef TE_PE
321extern void pecoff_obj_set_weak_hook (symbolS *);
322extern void pecoff_obj_clear_weak_hook (symbolS *);
323#endif
324extern void obj_coff_section (int);
325extern segT obj_coff_add_segment (const char *);
326extern void obj_coff_section (int);
327extern void c_dot_file_symbol (const char *, int);
328extern segT s_get_segment (symbolS *);
329#ifndef tc_coff_symbol_emit_hook
330extern void tc_coff_symbol_emit_hook (symbolS *);
331#endif
332extern void obj_coff_pe_handle_link_once (void);
333extern void obj_coff_init_stab_section (segT);
334extern void c_section_header (struct internal_scnhdr *,
335 char *, long, long, long, long,
336 long, long, long, long);
337extern void obj_coff_seh_do_final (void);
338
339#ifndef obj_coff_generate_pdata
340#define obj_coff_generate_pdata obj_coff_seh_do_final
341#endif
342
343
344#endif /* OBJ_FORMAT_H */
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