Annotation of src/external/gpl3/binutils.old/dist/gas/config/tc-ia64.h, Revision 1.1.1.1.2.1
1.1 christos 1: /* tc-ia64.h -- Header file for tc-ia64.c.
1.1.1.1.2.1! pgoyette 2: Copyright (C) 1998-2015 Free Software Foundation, Inc.
1.1 christos 3: Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4:
5: This file is part of GAS, the GNU Assembler.
6:
7: GAS 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, or (at your option)
10: any later version.
11:
12: GAS 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 GAS; see the file COPYING. If not, write to
19: the Free Software Foundation, 51 Franklin Street - Fifth Floor,
20: Boston, MA 02110-1301, USA. */
21:
22: #include "opcode/ia64.h"
23: #include "elf/ia64.h"
24:
25: #define TC_IA64
26:
27: /* Linux is little endian by default. HPUX is big endian by default. */
28: #ifdef TE_HPUX
29: #define TARGET_BYTES_BIG_ENDIAN 1
30: #define MD_FLAGS_DEFAULT EF_IA_64_BE
31: #else
32: #define TARGET_BYTES_BIG_ENDIAN 0
33: #define MD_FLAGS_DEFAULT EF_IA_64_ABI64
34: #endif /* TE_HPUX */
35:
36: extern void (*ia64_number_to_chars) (char *, valueT, int);
37: #define md_number_to_chars (*ia64_number_to_chars)
38:
39: extern void ia64_elf_section_change_hook (void);
40: #define md_elf_section_change_hook ia64_elf_section_change_hook
41:
42: /* We record the endian for this section. 0 means default, 1 means
43: big endian and 2 means little endian. */
44: struct ia64_segment_info_type
45: {
46: unsigned int endian : 2;
47: };
48:
49: #define TC_SEGMENT_INFO_TYPE struct ia64_segment_info_type
50:
51: extern void ia64_adjust_symtab (void);
52: #define tc_adjust_symtab() ia64_adjust_symtab ()
53:
54: extern void ia64_frob_file (void);
55: #define tc_frob_file() ia64_frob_file ()
56:
57: /* We need to set the default object file format in ia64_init and not in
58: md_begin. This is because parse_args is called before md_begin, and we
59: do not want md_begin to wipe out the flag settings set by options parsed in
60: md_parse_args. */
61:
62: #define HOST_SPECIAL_INIT ia64_init
63: extern void ia64_init (int, char **);
64:
65: #define TARGET_FORMAT ia64_target_format()
66: extern const char *ia64_target_format (void);
67:
68: #define TARGET_ARCH bfd_arch_ia64
69: #define DOUBLESLASH_LINE_COMMENTS /* allow //-style comments */
70:
71: #define NEED_LITERAL_POOL /* need gp literal pool */
72: #define RELOC_REQUIRES_SYMBOL
73: #define DIFF_EXPR_OK /* foo-. gets turned into PC relative relocs */
74: #define NEED_INDEX_OPERATOR /* [ ] is index operator */
75:
76: #define QUOTES_IN_INSN /* allow `string "foo;bar"' */
77: #define LEX_AT (LEX_NAME|LEX_BEGIN_NAME) /* allow `@' inside name */
78: #define LEX_QM (LEX_NAME|LEX_BEGIN_NAME) /* allow `?' inside name */
79: #define LEX_HASH LEX_END_NAME /* allow `#' ending a name */
80:
81: #define TC_PREDICATE_START_CHAR '('
82: #define TC_PREDICATE_END_CHAR ')'
83:
84: extern const char ia64_symbol_chars[];
85: #define tc_symbol_chars ia64_symbol_chars
86:
87: #define SUB_SEGMENT_ALIGN(SEG, FRCHAIN) 0
88:
89: struct ia64_fix
90: {
91: int bigendian; /* byte order at fix location */
92: enum ia64_opnd opnd;
93: };
94:
95: extern void ia64_end_of_source (void);
96: extern void ia64_start_line (void);
97: extern int ia64_unrecognized_line (int);
98: extern void ia64_frob_label (struct symbol *);
99: #ifdef TE_HPUX
100: extern int ia64_frob_symbol (struct symbol *);
101: #endif
102: extern void ia64_flush_pending_output (void);
103: extern int ia64_parse_name (char *, expressionS *, char *);
104: extern int ia64_optimize_expr (expressionS *, operatorT, expressionS *);
105: extern void ia64_cons_align (int);
106: extern void ia64_flush_insns (void);
107: extern int ia64_fix_adjustable (struct fix *);
108: extern int ia64_force_relocation (struct fix *);
1.1.1.1.2.1! pgoyette 109: extern void ia64_cons_fix_new (fragS *, int, int, expressionS *,
! 110: bfd_reloc_code_real_type);
1.1 christos 111: extern void ia64_validate_fix (struct fix *);
112: extern char * ia64_canonicalize_symbol_name (char *);
113: extern bfd_vma ia64_elf_section_letter (int, char **);
114: extern flagword ia64_elf_section_flags (flagword, bfd_vma, int);
115: extern int ia64_elf_section_type (const char *, size_t);
116: extern long ia64_pcrel_from_section (struct fix *, segT);
117: extern void ia64_md_do_align (int, const char *, int, int);
118: extern void ia64_handle_align (fragS *);
119: extern void ia64_after_parse_args (void);
120: extern void ia64_dwarf2_emit_offset (symbolS *, unsigned int);
121: extern void ia64_check_label (symbolS *);
122: extern int ia64_estimate_size_before_relax (fragS *, asection *);
123: extern void ia64_convert_frag (fragS *);
124:
125: #define md_end() ia64_end_of_source ()
126: #define md_start_line_hook() ia64_start_line ()
127: #define tc_unrecognized_line(ch) ia64_unrecognized_line (ch)
128: #define tc_frob_label(s) ia64_frob_label (s)
129: #ifdef TE_HPUX
130: #define tc_frob_symbol(s,p) p |= ia64_frob_symbol (s)
131: #endif /* TE_HPUX */
132: #define md_flush_pending_output() ia64_flush_pending_output ()
133: #define md_parse_name(s,e,m,c) ia64_parse_name (s, e, c)
134: #define md_register_arithmetic 0
135: #define tc_canonicalize_symbol_name(s) ia64_canonicalize_symbol_name (s)
136: #define tc_canonicalize_section_name(s) ia64_canonicalize_symbol_name (s)
137: #define md_optimize_expr(l,o,r) ia64_optimize_expr (l, o, r)
138: #define md_cons_align(n) ia64_cons_align (n)
139: #define TC_FORCE_RELOCATION(f) ia64_force_relocation (f)
140: #define tc_fix_adjustable(f) ia64_fix_adjustable (f)
141: #define MD_APPLY_SYM_VALUE(FIX) 0
142: #define md_convert_frag(b,s,f) ia64_convert_frag (f)
143: #define md_create_long_jump(p,f,t,fr,s) as_fatal ("ia64_create_long_jump")
144: #define md_create_short_jump(p,f,t,fr,s) \
145: as_fatal ("ia64_create_short_jump")
146: #define md_estimate_size_before_relax(f,s) \
147: ia64_estimate_size_before_relax(f,s)
148: #define md_elf_section_letter ia64_elf_section_letter
149: #define md_elf_section_flags ia64_elf_section_flags
150: #define TC_FIX_TYPE struct ia64_fix
151: #define TC_INIT_FIX_DATA(f) { f->tc_fix_data.opnd = 0; }
1.1.1.1.2.1! pgoyette 152: #define TC_CONS_FIX_NEW(f,o,l,e,r) ia64_cons_fix_new (f, o, l, e, r)
1.1 christos 153: #define TC_VALIDATE_FIX(fix,seg,skip) ia64_validate_fix (fix)
154: #define MD_PCREL_FROM_SECTION(fix,sec) ia64_pcrel_from_section (fix, sec)
155: #define md_section_align(seg,size) (size)
156: #define md_do_align(n,f,l,m,j) ia64_md_do_align (n,f,l,m)
157: #define HANDLE_ALIGN(f) ia64_handle_align (f)
158: #define md_elf_section_type(str,len) ia64_elf_section_type (str, len)
159: #define md_after_parse_args() ia64_after_parse_args ()
160: #define TC_DWARF2_EMIT_OFFSET ia64_dwarf2_emit_offset
161: #define tc_check_label(l) ia64_check_label (l)
162: #ifdef TE_VMS
163: #define tc_init_after_args() ia64_vms_note ()
164: void ia64_vms_note (void);
165: #endif
166:
167: /* Record if an alignment frag should end with a stop bit. */
168: #define TC_FRAG_TYPE int
169: #define TC_FRAG_INIT(FRAGP) do {(FRAGP)->tc_frag_data = 0;}while (0)
170:
171: /* Give an error if a frag containing code is not aligned to a 16 byte
172: boundary. */
173: #define md_frag_check(FRAGP) \
174: if ((FRAGP)->has_code \
175: && (((FRAGP)->fr_address + (FRAGP)->insn_addr) & 15) != 0) \
176: as_bad_where ((FRAGP)->fr_file, (FRAGP)->fr_line, \
177: _("instruction address is not a multiple of 16"));
178:
179: #define MAX_MEM_FOR_RS_ALIGN_CODE (15 + 16)
180:
181: #define WORKING_DOT_WORD /* don't do broken word processing for now */
182:
183: #define DWARF2_LINE_MIN_INSN_LENGTH 1 /* so slot-multipliers can be 1 */
184:
185: /* This is the information required for unwind records in an ia64
186: object file. This is required by GAS and the compiler runtime. */
187:
188: /* These are the starting point masks for the various types of
189: unwind records. To create a record of type R3 for instance, one
190: starts by using the value UNW_R3 and or-ing in any other required values.
191: These values are also unique (in context), so they can be used to identify
192: the various record types as well. UNW_Bx and some UNW_Px do have the
193: same value, but Px can only occur in a prologue context, and Bx in
194: a body context. */
195:
196: #define UNW_R1 0x00
197: #define UNW_R2 0x40
198: #define UNW_R3 0x60
199: #define UNW_P1 0x80
200: #define UNW_P2 0xA0
201: #define UNW_P3 0xB0
202: #define UNW_P4 0xB8
203: #define UNW_P5 0xB9
204: #define UNW_P6 0xC0
205: #define UNW_P7 0xE0
206: #define UNW_P8 0xF0
207: #define UNW_P9 0xF1
208: #define UNW_P10 0xFF
209: #define UNW_X1 0xF9
210: #define UNW_X2 0xFA
211: #define UNW_X3 0xFB
212: #define UNW_X4 0xFC
213: #define UNW_B1 0x80
214: #define UNW_B2 0xC0
215: #define UNW_B3 0xE0
216: #define UNW_B4 0xF0
217:
218: /* These are all the various types of unwind records. */
219:
220: typedef enum
221: {
222: prologue, prologue_gr, body, mem_stack_f, mem_stack_v, psp_gr, psp_sprel,
223: rp_when, rp_gr, rp_br, rp_psprel, rp_sprel, pfs_when, pfs_gr, pfs_psprel,
224: pfs_sprel, preds_when, preds_gr, preds_psprel, preds_sprel,
225: fr_mem, frgr_mem, gr_gr, gr_mem, br_mem, br_gr, spill_base, spill_mask,
226: unat_when, unat_gr, unat_psprel, unat_sprel, lc_when, lc_gr, lc_psprel,
227: lc_sprel, fpsr_when, fpsr_gr, fpsr_psprel, fpsr_sprel,
228: priunat_when_gr, priunat_when_mem, priunat_gr, priunat_psprel,
229: priunat_sprel, bsp_when, bsp_gr, bsp_psprel, bsp_sprel, bspstore_when,
230: bspstore_gr, bspstore_psprel, bspstore_sprel, rnat_when, rnat_gr,
231: rnat_psprel, rnat_sprel, epilogue, label_state, copy_state,
232: spill_psprel, spill_sprel, spill_reg, spill_psprel_p, spill_sprel_p,
233: spill_reg_p, unwabi, endp
234: } unw_record_type;
235:
236: /* These structures declare the fields that can be used in each of the
237: 4 record formats, R, P, B and X. */
238:
239: typedef struct unw_r_record
240: {
241: unsigned long rlen;
242: unsigned short grmask;
243: unsigned short grsave;
244: /* masks to represent the union of save.g, save.f, save.b, and
245: save.gf: */
246: unsigned long imask_size;
247: struct
248: {
249: unsigned char *i;
250: unsigned int fr_mem;
251: unsigned char gr_mem;
252: unsigned char br_mem;
253: } mask;
254: } unw_r_record;
255:
256: typedef struct unw_p_record
257: {
258: struct unw_rec_list *next;
259: unsigned long t;
260: unsigned long size;
261: union
262: {
263: unsigned long sp;
264: unsigned long psp;
265: } off;
266: union
267: {
268: unsigned short gr;
269: unsigned short br;
270: } r;
271: unsigned char grmask;
272: unsigned char brmask;
273: unsigned int frmask;
274: unsigned char abi;
275: unsigned char context;
276: } unw_p_record;
277:
278: typedef struct unw_b_record
279: {
280: unsigned long t;
281: unsigned long label;
282: unsigned short ecount;
283: } unw_b_record;
284:
285: typedef struct unw_x_record
286: {
287: unsigned long t;
288: union
289: {
290: unsigned long spoff;
291: unsigned long pspoff;
292: unsigned int reg;
293: } where;
294: unsigned short reg;
295: unsigned short qp;
296: unsigned short ab; /* Value of the AB field.. */
297: unsigned short xy; /* Value of the XY field.. */
298: } unw_x_record;
299:
300: /* This structure is used to determine the specific record type and
301: its fields. */
302: typedef struct unwind_record
303: {
304: unw_record_type type;
305: union {
306: unw_r_record r;
307: unw_p_record p;
308: unw_b_record b;
309: unw_x_record x;
310: } record;
311: } unwind_record;
312:
313: /* This expression evaluates to true if the relocation is for a local
314: object for which we still want to do the relocation at runtime.
315: False if we are willing to perform this relocation while building
316: the .o file. */
317:
318: /* If the reloc type is BFD_RELOC_UNUSED, then this is for a TAG13/TAG13b field
319: which has no external reloc, so we must resolve the value now. */
320:
321: #define TC_FORCE_RELOCATION_LOCAL(FIX) \
322: ((FIX)->fx_r_type != BFD_RELOC_UNUSED \
323: && (!(FIX)->fx_pcrel \
324: || (FIX)->fx_r_type == BFD_RELOC_IA64_PLTOFF22 \
325: || TC_FORCE_RELOCATION (FIX)))
326:
327: /* VMS backtraces expect dwarf version 3. */
328: #ifdef TE_VMS
329: #define DWARF2_VERSION 3
330: #define DWARF2_LINE_VERSION 3
331: #endif
CVSweb <webmaster@jp.NetBSD.org>