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avr.c (avr_base_arch_macro, [...]): Remove variables.
[gcc.git] / gcc / config / avr / avr.h
1 /* Definitions of target machine for GNU compiler,
2 for ATMEL AVR at90s8515, ATmega103/103L, ATmega603/603L microcontrollers.
3 Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
4 2008 Free Software Foundation, Inc.
5 Contributed by Denis Chertykov (denisc@overta.ru)
6
7 This file is part of GCC.
8
9 GCC is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
12 any later version.
13
14 GCC is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
18
19 You should have received a copy of the GNU General Public License
20 along with GCC; see the file COPYING3. If not see
21 <http://www.gnu.org/licenses/>. */
22
23 /* Names to predefine in the preprocessor for this target machine. */
24
25 struct base_arch_s {
26 /* Assembler only. */
27 int asm_only;
28
29 /* Core have 'MUL*' instructions. */
30 int have_mul;
31
32 /* Core have 'CALL' and 'JMP' instructions. */
33 int have_jmp_call;
34
35 /* Core have 'MOVW' and 'LPM Rx,Z' instructions. */
36 int have_movw_lpmx;
37
38 /* Core have 'ELPM' instructions. */
39 int have_elpm;
40
41 /* Core have 'ELPM Rx,Z' instructions. */
42 int have_elpmx;
43
44 /* Core have 'EICALL' and 'EIJMP' instructions. */
45 int have_eijmp_eicall;
46
47 /* Reserved. */
48 int reserved;
49
50 const char *const macro;
51 };
52
53 extern const struct base_arch_s *avr_current_arch;
54
55 #define TARGET_CPU_CPP_BUILTINS() \
56 do \
57 { \
58 builtin_define_std ("AVR"); \
59 if (avr_current_arch->macro) \
60 builtin_define (avr_current_arch->macro); \
61 if (avr_extra_arch_macro) \
62 builtin_define (avr_extra_arch_macro); \
63 if (avr_current_arch->have_elpm) \
64 builtin_define ("__AVR_HAVE_RAMPZ__"); \
65 if (avr_current_arch->have_elpm) \
66 builtin_define ("__AVR_HAVE_ELPM__"); \
67 if (avr_current_arch->have_elpmx) \
68 builtin_define ("__AVR_HAVE_ELPMX__"); \
69 if (avr_current_arch->have_movw_lpmx) \
70 { \
71 builtin_define ("__AVR_HAVE_MOVW__"); \
72 builtin_define ("__AVR_HAVE_LPMX__"); \
73 } \
74 if (avr_current_arch->asm_only) \
75 builtin_define ("__AVR_ASM_ONLY__"); \
76 if (avr_current_arch->have_mul) \
77 { \
78 builtin_define ("__AVR_ENHANCED__"); \
79 builtin_define ("__AVR_HAVE_MUL__"); \
80 } \
81 if (avr_current_arch->have_jmp_call) \
82 { \
83 builtin_define ("__AVR_MEGA__"); \
84 builtin_define ("__AVR_HAVE_JMP_CALL__"); \
85 } \
86 if (avr_current_arch->have_eijmp_eicall) \
87 { \
88 builtin_define ("__AVR_HAVE_EIJMP_EICALL__"); \
89 builtin_define ("__AVR_3_BYTE_PC__"); \
90 } \
91 else \
92 { \
93 builtin_define ("__AVR_2_BYTE_PC__"); \
94 } \
95 if (TARGET_NO_INTERRUPTS) \
96 builtin_define ("__NO_INTERRUPTS__"); \
97 } \
98 while (0)
99
100 extern const char *avr_extra_arch_macro;
101
102 #if !defined(IN_LIBGCC2) && !defined(IN_TARGET_LIBS)
103 extern GTY(()) section *progmem_section;
104 #endif
105
106 #define AVR_HAVE_JMP_CALL (avr_current_arch->have_jmp_call && !TARGET_SHORT_CALLS)
107 #define AVR_HAVE_MUL (avr_current_arch->have_mul)
108 #define AVR_HAVE_MOVW (avr_current_arch->have_movw_lpmx)
109 #define AVR_HAVE_LPMX (avr_current_arch->have_movw_lpmx)
110 #define AVR_HAVE_RAMPZ (avr_current_arch->have_elpm)
111 #define AVR_HAVE_EIJMP_EICALL (avr_current_arch->have_eijmp_eicall)
112
113 #define AVR_2_BYTE_PC (!AVR_HAVE_EIJMP_EICALL)
114 #define AVR_3_BYTE_PC (AVR_HAVE_EIJMP_EICALL)
115
116 #define TARGET_VERSION fprintf (stderr, " (GNU assembler syntax)");
117
118 #define OVERRIDE_OPTIONS avr_override_options ()
119
120 #define CAN_DEBUG_WITHOUT_FP
121
122 #define BITS_BIG_ENDIAN 0
123 #define BYTES_BIG_ENDIAN 0
124 #define WORDS_BIG_ENDIAN 0
125
126 #ifdef IN_LIBGCC2
127 /* This is to get correct SI and DI modes in libgcc2.c (32 and 64 bits). */
128 #define UNITS_PER_WORD 4
129 #else
130 /* Width of a word, in units (bytes). */
131 #define UNITS_PER_WORD 1
132 #endif
133
134 #define POINTER_SIZE 16
135
136
137 /* Maximum sized of reasonable data type
138 DImode or Dfmode ... */
139 #define MAX_FIXED_MODE_SIZE 32
140
141 #define PARM_BOUNDARY 8
142
143 #define FUNCTION_BOUNDARY 8
144
145 #define EMPTY_FIELD_BOUNDARY 8
146
147 /* No data type wants to be aligned rounder than this. */
148 #define BIGGEST_ALIGNMENT 8
149
150 #define MAX_OFILE_ALIGNMENT (32768 * 8)
151
152 #define TARGET_VTABLE_ENTRY_ALIGN 8
153
154 #define STRICT_ALIGNMENT 0
155
156 #define INT_TYPE_SIZE (TARGET_INT8 ? 8 : 16)
157 #define SHORT_TYPE_SIZE (INT_TYPE_SIZE == 8 ? INT_TYPE_SIZE : 16)
158 #define LONG_TYPE_SIZE (INT_TYPE_SIZE == 8 ? 16 : 32)
159 #define LONG_LONG_TYPE_SIZE (INT_TYPE_SIZE == 8 ? 32 : 64)
160 #define FLOAT_TYPE_SIZE 32
161 #define DOUBLE_TYPE_SIZE 32
162 #define LONG_DOUBLE_TYPE_SIZE 32
163
164 #define DEFAULT_SIGNED_CHAR 1
165
166 #define SIZE_TYPE (INT_TYPE_SIZE == 8 ? "long unsigned int" : "unsigned int")
167 #define PTRDIFF_TYPE (INT_TYPE_SIZE == 8 ? "long int" :"int")
168
169 #define WCHAR_TYPE_SIZE 16
170
171 #define FIRST_PSEUDO_REGISTER 36
172
173 #define FIXED_REGISTERS {\
174 1,1,/* r0 r1 */\
175 0,0,/* r2 r3 */\
176 0,0,/* r4 r5 */\
177 0,0,/* r6 r7 */\
178 0,0,/* r8 r9 */\
179 0,0,/* r10 r11 */\
180 0,0,/* r12 r13 */\
181 0,0,/* r14 r15 */\
182 0,0,/* r16 r17 */\
183 0,0,/* r18 r19 */\
184 0,0,/* r20 r21 */\
185 0,0,/* r22 r23 */\
186 0,0,/* r24 r25 */\
187 0,0,/* r26 r27 */\
188 0,0,/* r28 r29 */\
189 0,0,/* r30 r31 */\
190 1,1,/* STACK */\
191 1,1 /* arg pointer */ }
192
193 #define CALL_USED_REGISTERS { \
194 1,1,/* r0 r1 */ \
195 0,0,/* r2 r3 */ \
196 0,0,/* r4 r5 */ \
197 0,0,/* r6 r7 */ \
198 0,0,/* r8 r9 */ \
199 0,0,/* r10 r11 */ \
200 0,0,/* r12 r13 */ \
201 0,0,/* r14 r15 */ \
202 0,0,/* r16 r17 */ \
203 1,1,/* r18 r19 */ \
204 1,1,/* r20 r21 */ \
205 1,1,/* r22 r23 */ \
206 1,1,/* r24 r25 */ \
207 1,1,/* r26 r27 */ \
208 0,0,/* r28 r29 */ \
209 1,1,/* r30 r31 */ \
210 1,1,/* STACK */ \
211 1,1 /* arg pointer */ }
212
213 #define REG_ALLOC_ORDER { \
214 24,25, \
215 18,19, \
216 20,21, \
217 22,23, \
218 30,31, \
219 26,27, \
220 28,29, \
221 17,16,15,14,13,12,11,10,9,8,7,6,5,4,3,2, \
222 0,1, \
223 32,33,34,35 \
224 }
225
226 #define ORDER_REGS_FOR_LOCAL_ALLOC order_regs_for_local_alloc ()
227
228
229 #define HARD_REGNO_NREGS(REGNO, MODE) ((GET_MODE_SIZE (MODE) + UNITS_PER_WORD - 1) / UNITS_PER_WORD)
230
231 #define HARD_REGNO_MODE_OK(REGNO, MODE) avr_hard_regno_mode_ok(REGNO, MODE)
232
233 #define MODES_TIEABLE_P(MODE1, MODE2) 1
234
235 enum reg_class {
236 NO_REGS,
237 R0_REG, /* r0 */
238 POINTER_X_REGS, /* r26 - r27 */
239 POINTER_Y_REGS, /* r28 - r29 */
240 POINTER_Z_REGS, /* r30 - r31 */
241 STACK_REG, /* STACK */
242 BASE_POINTER_REGS, /* r28 - r31 */
243 POINTER_REGS, /* r26 - r31 */
244 ADDW_REGS, /* r24 - r31 */
245 SIMPLE_LD_REGS, /* r16 - r23 */
246 LD_REGS, /* r16 - r31 */
247 NO_LD_REGS, /* r0 - r15 */
248 GENERAL_REGS, /* r0 - r31 */
249 ALL_REGS, LIM_REG_CLASSES
250 };
251
252
253 #define N_REG_CLASSES (int)LIM_REG_CLASSES
254
255 #define REG_CLASS_NAMES { \
256 "NO_REGS", \
257 "R0_REG", /* r0 */ \
258 "POINTER_X_REGS", /* r26 - r27 */ \
259 "POINTER_Y_REGS", /* r28 - r29 */ \
260 "POINTER_Z_REGS", /* r30 - r31 */ \
261 "STACK_REG", /* STACK */ \
262 "BASE_POINTER_REGS", /* r28 - r31 */ \
263 "POINTER_REGS", /* r26 - r31 */ \
264 "ADDW_REGS", /* r24 - r31 */ \
265 "SIMPLE_LD_REGS", /* r16 - r23 */ \
266 "LD_REGS", /* r16 - r31 */ \
267 "NO_LD_REGS", /* r0 - r15 */ \
268 "GENERAL_REGS", /* r0 - r31 */ \
269 "ALL_REGS" }
270
271 #define REG_CLASS_CONTENTS { \
272 {0x00000000,0x00000000}, /* NO_REGS */ \
273 {0x00000001,0x00000000}, /* R0_REG */ \
274 {3 << REG_X,0x00000000}, /* POINTER_X_REGS, r26 - r27 */ \
275 {3 << REG_Y,0x00000000}, /* POINTER_Y_REGS, r28 - r29 */ \
276 {3 << REG_Z,0x00000000}, /* POINTER_Z_REGS, r30 - r31 */ \
277 {0x00000000,0x00000003}, /* STACK_REG, STACK */ \
278 {(3 << REG_Y) | (3 << REG_Z), \
279 0x00000000}, /* BASE_POINTER_REGS, r28 - r31 */ \
280 {(3 << REG_X) | (3 << REG_Y) | (3 << REG_Z), \
281 0x00000000}, /* POINTER_REGS, r26 - r31 */ \
282 {(3 << REG_X) | (3 << REG_Y) | (3 << REG_Z) | (3 << REG_W), \
283 0x00000000}, /* ADDW_REGS, r24 - r31 */ \
284 {0x00ff0000,0x00000000}, /* SIMPLE_LD_REGS r16 - r23 */ \
285 {(3 << REG_X)|(3 << REG_Y)|(3 << REG_Z)|(3 << REG_W)|(0xff << 16), \
286 0x00000000}, /* LD_REGS, r16 - r31 */ \
287 {0x0000ffff,0x00000000}, /* NO_LD_REGS r0 - r15 */ \
288 {0xffffffff,0x00000000}, /* GENERAL_REGS, r0 - r31 */ \
289 {0xffffffff,0x00000003} /* ALL_REGS */ \
290 }
291
292 #define REGNO_REG_CLASS(R) avr_regno_reg_class(R)
293
294 #define BASE_REG_CLASS (reload_completed ? BASE_POINTER_REGS : POINTER_REGS)
295
296 #define INDEX_REG_CLASS NO_REGS
297
298 #define REGNO_OK_FOR_BASE_P(r) (((r) < FIRST_PSEUDO_REGISTER \
299 && ((r) == REG_X \
300 || (r) == REG_Y \
301 || (r) == REG_Z \
302 || (r) == ARG_POINTER_REGNUM)) \
303 || (reg_renumber \
304 && (reg_renumber[r] == REG_X \
305 || reg_renumber[r] == REG_Y \
306 || reg_renumber[r] == REG_Z \
307 || (reg_renumber[r] \
308 == ARG_POINTER_REGNUM))))
309
310 #define REGNO_OK_FOR_INDEX_P(NUM) 0
311
312 #define PREFERRED_RELOAD_CLASS(X, CLASS) preferred_reload_class(X,CLASS)
313
314 #define SMALL_REGISTER_CLASSES 1
315
316 #define CLASS_LIKELY_SPILLED_P(c) class_likely_spilled_p(c)
317
318 #define CLASS_MAX_NREGS(CLASS, MODE) class_max_nregs (CLASS, MODE)
319
320 #define STACK_PUSH_CODE POST_DEC
321
322 #define STACK_GROWS_DOWNWARD
323
324 #define STARTING_FRAME_OFFSET 1
325
326 #define STACK_POINTER_OFFSET 1
327
328 #define FIRST_PARM_OFFSET(FUNDECL) 0
329
330 #define STACK_BOUNDARY 8
331
332 #define STACK_POINTER_REGNUM 32
333
334 #define FRAME_POINTER_REGNUM REG_Y
335
336 #define ARG_POINTER_REGNUM 34
337
338 #define STATIC_CHAIN_REGNUM 2
339
340 #define FRAME_POINTER_REQUIRED frame_pointer_required_p()
341
342 /* Offset from the frame pointer register value to the top of the stack. */
343 #define FRAME_POINTER_CFA_OFFSET(FNDECL) 0
344
345 #define ELIMINABLE_REGS { \
346 {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM}, \
347 {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM} \
348 ,{FRAME_POINTER_REGNUM+1,STACK_POINTER_REGNUM+1}}
349
350 #define CAN_ELIMINATE(FROM, TO) (((FROM) == ARG_POINTER_REGNUM \
351 && (TO) == FRAME_POINTER_REGNUM) \
352 || (((FROM) == FRAME_POINTER_REGNUM \
353 || (FROM) == FRAME_POINTER_REGNUM+1) \
354 && ! FRAME_POINTER_REQUIRED \
355 ))
356
357 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET) \
358 OFFSET = initial_elimination_offset (FROM, TO)
359
360 #define RETURN_ADDR_RTX(count, x) \
361 gen_rtx_MEM (Pmode, memory_address (Pmode, plus_constant (tem, 1)))
362
363 #define PUSH_ROUNDING(NPUSHED) (NPUSHED)
364
365 #define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
366
367 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) (function_arg (&(CUM), MODE, TYPE, NAMED))
368
369 typedef struct avr_args {
370 int nregs; /* # registers available for passing */
371 int regno; /* next available register number */
372 } CUMULATIVE_ARGS;
373
374 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
375 init_cumulative_args (&(CUM), FNTYPE, LIBNAME, FNDECL)
376
377 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED) \
378 (function_arg_advance (&CUM, MODE, TYPE, NAMED))
379
380 #define FUNCTION_ARG_REGNO_P(r) function_arg_regno_p(r)
381
382 extern int avr_reg_order[];
383
384 #define RET_REGISTER avr_ret_register ()
385
386 #define FUNCTION_VALUE(VALTYPE, FUNC) avr_function_value (VALTYPE, FUNC)
387
388 #define LIBCALL_VALUE(MODE) avr_libcall_value (MODE)
389
390 #define FUNCTION_VALUE_REGNO_P(N) ((int) (N) == RET_REGISTER)
391
392 #define DEFAULT_PCC_STRUCT_RETURN 0
393
394 #define EPILOGUE_USES(REGNO) avr_epilogue_uses(REGNO)
395
396 #define HAVE_POST_INCREMENT 1
397 #define HAVE_PRE_DECREMENT 1
398
399 #define CONSTANT_ADDRESS_P(X) CONSTANT_P (X)
400
401 #define MAX_REGS_PER_ADDRESS 1
402
403 #ifdef REG_OK_STRICT
404 # define GO_IF_LEGITIMATE_ADDRESS(mode, operand, ADDR) \
405 { \
406 if (legitimate_address_p (mode, operand, 1)) \
407 goto ADDR; \
408 }
409 # else
410 # define GO_IF_LEGITIMATE_ADDRESS(mode, operand, ADDR) \
411 { \
412 if (legitimate_address_p (mode, operand, 0)) \
413 goto ADDR; \
414 }
415 #endif
416
417 #define REG_OK_FOR_BASE_NOSTRICT_P(X) \
418 (REGNO (X) >= FIRST_PSEUDO_REGISTER || REG_OK_FOR_BASE_STRICT_P(X))
419
420 #define REG_OK_FOR_BASE_STRICT_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
421
422 #ifdef REG_OK_STRICT
423 # define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_STRICT_P (X)
424 #else
425 # define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_NOSTRICT_P (X)
426 #endif
427
428 #define REG_OK_FOR_INDEX_P(X) 0
429
430 #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN) \
431 { \
432 (X) = legitimize_address (X, OLDX, MODE); \
433 if (memory_address_p (MODE, X)) \
434 goto WIN; \
435 }
436
437 #define XEXP_(X,Y) (X)
438 #define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, IND_LEVELS, WIN) \
439 do { \
440 if (1&&(GET_CODE (X) == POST_INC || GET_CODE (X) == PRE_DEC)) \
441 { \
442 push_reload (XEXP (X,0), XEXP (X,0), &XEXP (X,0), &XEXP (X,0), \
443 POINTER_REGS, GET_MODE (X),GET_MODE (X) , 0, 0, \
444 OPNUM, RELOAD_OTHER); \
445 goto WIN; \
446 } \
447 if (GET_CODE (X) == PLUS \
448 && REG_P (XEXP (X, 0)) \
449 && GET_CODE (XEXP (X, 1)) == CONST_INT \
450 && INTVAL (XEXP (X, 1)) >= 1) \
451 { \
452 int fit = INTVAL (XEXP (X, 1)) <= (64 - GET_MODE_SIZE (MODE)); \
453 if (fit) \
454 { \
455 if (reg_equiv_address[REGNO (XEXP (X, 0))] != 0) \
456 { \
457 int regno = REGNO (XEXP (X, 0)); \
458 rtx mem = make_memloc (X, regno); \
459 push_reload (XEXP (mem,0), NULL, &XEXP (mem,0), NULL, \
460 POINTER_REGS, Pmode, VOIDmode, 0, 0, \
461 1, ADDR_TYPE (TYPE)); \
462 push_reload (mem, NULL_RTX, &XEXP (X, 0), NULL, \
463 BASE_POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0, \
464 OPNUM, TYPE); \
465 goto WIN; \
466 } \
467 push_reload (XEXP (X, 0), NULL_RTX, &XEXP (X, 0), NULL, \
468 BASE_POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0, \
469 OPNUM, TYPE); \
470 goto WIN; \
471 } \
472 else if (! (frame_pointer_needed && XEXP (X,0) == frame_pointer_rtx)) \
473 { \
474 push_reload (X, NULL_RTX, &X, NULL, \
475 POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0, \
476 OPNUM, TYPE); \
477 goto WIN; \
478 } \
479 } \
480 } while(0)
481
482 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
483
484 #define LEGITIMATE_CONSTANT_P(X) 1
485
486 #define REGISTER_MOVE_COST(MODE, FROM, TO) ((FROM) == STACK_REG ? 6 \
487 : (TO) == STACK_REG ? 12 \
488 : 2)
489
490 #define MEMORY_MOVE_COST(MODE,CLASS,IN) ((MODE)==QImode ? 2 : \
491 (MODE)==HImode ? 4 : \
492 (MODE)==SImode ? 8 : \
493 (MODE)==SFmode ? 8 : 16)
494
495 #define BRANCH_COST 0
496
497 #define SLOW_BYTE_ACCESS 0
498
499 #define NO_FUNCTION_CSE
500
501 #define TEXT_SECTION_ASM_OP "\t.text"
502
503 #define DATA_SECTION_ASM_OP "\t.data"
504
505 #define BSS_SECTION_ASM_OP "\t.section .bss"
506
507 /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
508 There are no shared libraries on this target, and these sections are
509 placed in the read-only program memory, so they are not writable. */
510
511 #undef CTORS_SECTION_ASM_OP
512 #define CTORS_SECTION_ASM_OP "\t.section .ctors,\"a\",@progbits"
513
514 #undef DTORS_SECTION_ASM_OP
515 #define DTORS_SECTION_ASM_OP "\t.section .dtors,\"a\",@progbits"
516
517 #define TARGET_ASM_CONSTRUCTOR avr_asm_out_ctor
518
519 #define TARGET_ASM_DESTRUCTOR avr_asm_out_dtor
520
521 #define JUMP_TABLES_IN_TEXT_SECTION 0
522
523 #define ASM_COMMENT_START " ; "
524
525 #define ASM_APP_ON "/* #APP */\n"
526
527 #define ASM_APP_OFF "/* #NOAPP */\n"
528
529 /* Switch into a generic section. */
530 #define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
531 #define TARGET_ASM_INIT_SECTIONS avr_asm_init_sections
532
533 #define ASM_OUTPUT_ASCII(FILE, P, SIZE) gas_output_ascii (FILE,P,SIZE)
534
535 #define IS_ASM_LOGICAL_LINE_SEPARATOR(C, STR) ((C) == '\n' || ((C) == '$'))
536
537 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED) \
538 do { \
539 fputs ("\t.comm ", (STREAM)); \
540 assemble_name ((STREAM), (NAME)); \
541 fprintf ((STREAM), ",%lu,1\n", (unsigned long)(SIZE)); \
542 } while (0)
543
544 #define ASM_OUTPUT_BSS(FILE, DECL, NAME, SIZE, ROUNDED) \
545 asm_output_bss ((FILE), (DECL), (NAME), (SIZE), (ROUNDED))
546
547 #define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED) \
548 do { \
549 fputs ("\t.lcomm ", (STREAM)); \
550 assemble_name ((STREAM), (NAME)); \
551 fprintf ((STREAM), ",%d\n", (int)(SIZE)); \
552 } while (0)
553
554 #undef TYPE_ASM_OP
555 #undef SIZE_ASM_OP
556 #undef WEAK_ASM_OP
557 #define TYPE_ASM_OP "\t.type\t"
558 #define SIZE_ASM_OP "\t.size\t"
559 #define WEAK_ASM_OP "\t.weak\t"
560 /* Define the strings used for the special svr4 .type and .size directives.
561 These strings generally do not vary from one system running svr4 to
562 another, but if a given system (e.g. m88k running svr) needs to use
563 different pseudo-op names for these, they may be overridden in the
564 file which includes this one. */
565
566
567 #undef TYPE_OPERAND_FMT
568 #define TYPE_OPERAND_FMT "@%s"
569 /* The following macro defines the format used to output the second
570 operand of the .type assembler directive. Different svr4 assemblers
571 expect various different forms for this operand. The one given here
572 is just a default. You may need to override it in your machine-
573 specific tm.h file (depending upon the particulars of your assembler). */
574
575 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL) \
576 do { \
577 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "function"); \
578 ASM_OUTPUT_LABEL (FILE, NAME); \
579 } while (0)
580
581 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
582 do { \
583 if (!flag_inhibit_size_directive) \
584 ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME); \
585 } while (0)
586
587 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
588 do { \
589 ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
590 size_directive_output = 0; \
591 if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \
592 { \
593 size_directive_output = 1; \
594 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, \
595 int_size_in_bytes (TREE_TYPE (DECL))); \
596 } \
597 ASM_OUTPUT_LABEL(FILE, NAME); \
598 } while (0)
599
600 #undef ASM_FINISH_DECLARE_OBJECT
601 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
602 do { \
603 const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
604 HOST_WIDE_INT size; \
605 if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \
606 && ! AT_END && TOP_LEVEL \
607 && DECL_INITIAL (DECL) == error_mark_node \
608 && !size_directive_output) \
609 { \
610 size_directive_output = 1; \
611 size = int_size_in_bytes (TREE_TYPE (DECL)); \
612 ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
613 } \
614 } while (0)
615
616
617 #define ESCAPES \
618 "\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
619 \0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
620 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
621 \0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
622 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
623 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
624 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
625 \1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
626 /* A table of bytes codes used by the ASM_OUTPUT_ASCII and
627 ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
628 corresponds to a particular byte value [0..255]. For any
629 given byte value, if the value in the corresponding table
630 position is zero, the given character can be output directly.
631 If the table value is 1, the byte must be output as a \ooo
632 octal escape. If the tables value is anything else, then the
633 byte value should be output as a \ followed by the value
634 in the table. Note that we can use standard UN*X escape
635 sequences for many control characters, but we don't use
636 \a to represent BEL because some svr4 assemblers (e.g. on
637 the i386) don't know about that. Also, we don't use \v
638 since some versions of gas, such as 2.2 did not accept it. */
639
640 #define STRING_LIMIT ((unsigned) 64)
641 #define STRING_ASM_OP "\t.string\t"
642 /* Some svr4 assemblers have a limit on the number of characters which
643 can appear in the operand of a .string directive. If your assembler
644 has such a limitation, you should define STRING_LIMIT to reflect that
645 limit. Note that at least some svr4 assemblers have a limit on the
646 actual number of bytes in the double-quoted string, and that they
647 count each character in an escape sequence as one byte. Thus, an
648 escape sequence like \377 would count as four bytes.
649
650 If your target assembler doesn't support the .string directive, you
651 should define this to zero. */
652
653 /* Globalizing directive for a label. */
654 #define GLOBAL_ASM_OP ".global\t"
655
656 #define SET_ASM_OP "\t.set\t"
657
658 #define ASM_WEAKEN_LABEL(FILE, NAME) \
659 do \
660 { \
661 fputs ("\t.weak\t", (FILE)); \
662 assemble_name ((FILE), (NAME)); \
663 fputc ('\n', (FILE)); \
664 } \
665 while (0)
666
667 #define SUPPORTS_WEAK 1
668
669 #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM) \
670 sprintf (STRING, "*.%s%lu", PREFIX, (unsigned long)(NUM))
671
672 #define HAS_INIT_SECTION 1
673
674 #define REGISTER_NAMES { \
675 "r0","r1","r2","r3","r4","r5","r6","r7", \
676 "r8","r9","r10","r11","r12","r13","r14","r15", \
677 "r16","r17","r18","r19","r20","r21","r22","r23", \
678 "r24","r25","r26","r27","r28","r29","r30","r31", \
679 "__SP_L__","__SP_H__","argL","argH"}
680
681 #define FINAL_PRESCAN_INSN(insn, operand, nop) final_prescan_insn (insn, operand,nop)
682
683 #define PRINT_OPERAND(STREAM, X, CODE) print_operand (STREAM, X, CODE)
684
685 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '~' || (CODE) == '!')
686
687 #define PRINT_OPERAND_ADDRESS(STREAM, X) print_operand_address(STREAM, X)
688
689 #define USER_LABEL_PREFIX ""
690
691 #define ASSEMBLER_DIALECT AVR_HAVE_MOVW
692
693 #define ASM_OUTPUT_REG_PUSH(STREAM, REGNO) \
694 { \
695 gcc_assert (REGNO < 32); \
696 fprintf (STREAM, "\tpush\tr%d", REGNO); \
697 }
698
699 #define ASM_OUTPUT_REG_POP(STREAM, REGNO) \
700 { \
701 gcc_assert (REGNO < 32); \
702 fprintf (STREAM, "\tpop\tr%d", REGNO); \
703 }
704
705 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE) \
706 avr_output_addr_vec_elt(STREAM, VALUE)
707
708 #define ASM_OUTPUT_CASE_LABEL(STREAM, PREFIX, NUM, TABLE) \
709 (switch_to_section (progmem_section), \
710 (*targetm.asm_out.internal_label) (STREAM, PREFIX, NUM))
711
712 #define ASM_OUTPUT_SKIP(STREAM, N) \
713 fprintf (STREAM, "\t.skip %lu,0\n", (unsigned long)(N))
714
715 #define ASM_OUTPUT_ALIGN(STREAM, POWER) \
716 do { \
717 if ((POWER) > 1) \
718 fprintf (STREAM, "\t.p2align\t%d\n", POWER); \
719 } while (0)
720
721 #define CASE_VECTOR_MODE HImode
722
723 extern int avr_case_values_threshold;
724
725 #define CASE_VALUES_THRESHOLD avr_case_values_threshold
726
727 #undef WORD_REGISTER_OPERATIONS
728
729 #define MOVE_MAX 4
730
731 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
732
733 #define Pmode HImode
734
735 #define FUNCTION_MODE HImode
736
737 #define DOLLARS_IN_IDENTIFIERS 0
738
739 #define NO_DOLLAR_IN_LABEL 1
740
741 #define TRAMPOLINE_TEMPLATE(FILE) \
742 internal_error ("trampolines not supported")
743
744 #define TRAMPOLINE_SIZE 4
745
746 #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT) \
747 { \
748 emit_move_insn (gen_rtx_MEM (HImode, plus_constant ((TRAMP), 2)), CXT); \
749 emit_move_insn (gen_rtx_MEM (HImode, plus_constant ((TRAMP), 6)), FNADDR); \
750 }
751 /* Store in cc_status the expressions
752 that the condition codes will describe
753 after execution of an instruction whose pattern is EXP.
754 Do not alter them if the instruction would not alter the cc's. */
755
756 #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN)
757
758 /* The add insns don't set overflow in a usable way. */
759 #define CC_OVERFLOW_UNUSABLE 01000
760 /* The mov,and,or,xor insns don't set carry. That's ok though as the
761 Z bit is all we need when doing unsigned comparisons on the result of
762 these insns (since they're always with 0). However, conditions.h has
763 CC_NO_OVERFLOW defined for this purpose. Rename it to something more
764 understandable. */
765 #define CC_NO_CARRY CC_NO_OVERFLOW
766
767
768 /* Output assembler code to FILE to increment profiler label # LABELNO
769 for profiling a function entry. */
770
771 #define FUNCTION_PROFILER(FILE, LABELNO) \
772 fprintf (FILE, "/* profiler %d */", (LABELNO))
773
774 #define ADJUST_INSN_LENGTH(INSN, LENGTH) (LENGTH =\
775 adjust_insn_length (INSN, LENGTH))
776
777 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
778
779 #define CC1_SPEC "%{profile:-p}"
780
781 #define CC1PLUS_SPEC "%{!frtti:-fno-rtti} \
782 %{!fenforce-eh-specs:-fno-enforce-eh-specs} \
783 %{!fexceptions:-fno-exceptions}"
784 /* A C string constant that tells the GCC driver program options to
785 pass to `cc1plus'. */
786
787 #define ASM_SPEC "%{mmcu=avr25:-mmcu=avr2;mmcu=avr35:-mmcu=avr3;mmcu=avr31:-mmcu=avr3;mmcu=avr51:-mmcu=avr5;\
788 mmcu=*:-mmcu=%*}"
789
790 #define LINK_SPEC "\
791 %{mrelax:--relax\
792 %{mpmem-wrap-around:%{mmcu=at90usb8*:--pmem-wrap-around=8k}\
793 %{mmcu=atmega16*:--pmem-wrap-around=16k}\
794 %{mmcu=atmega32*|\
795 mmcu=at90can32*:--pmem-wrap-around=32k}\
796 %{mmcu=atmega64*|\
797 mmcu=at90can64*|\
798 mmcu=at90usb64*:--pmem-wrap-around=64k}}}\
799 %{!mmcu*: -m avr2}\
800 %{mmcu=at90s1200|\
801 mmcu=attiny11|\
802 mmcu=attiny12|\
803 mmcu=attiny15|\
804 mmcu=attiny28: -m avr1}\
805 %{mmcu=attiny22|\
806 mmcu=attiny26|\
807 mmcu=at90s2*|\
808 mmcu=at90s4*|\
809 mmcu=at90s8*|\
810 mmcu=at90c8*|\
811 mmcu=at86rf401|\
812 mmcu=attiny13|\
813 mmcu=attiny2313|\
814 mmcu=attiny24|\
815 mmcu=attiny25|\
816 mmcu=attiny261|\
817 mmcu=attiny4*|\
818 mmcu=attiny8*: -m avr2}\
819 %{mmcu=atmega103|\
820 mmcu=at43*|\
821 mmcu=at76*|\
822 mmcu=at90usb82|\
823 mmcu=at90usb162: -m avr3}\
824 %{mmcu=atmega8*|\
825 mmcu=atmega48*|\
826 mmcu=at90pwm1|\
827 mmcu=at90pwm2|\
828 mmcu=at90pwm2b|\
829 mmcu=at90pwm3|\
830 mmcu=at90pwm3b: -m avr4}\
831 %{mmcu=atmega16*|\
832 mmcu=atmega32*|\
833 mmcu=atmega406|\
834 mmcu=atmega64*|\
835 mmcu=atmega128*|\
836 mmcu=at90can*|\
837 mmcu=at90pwm216|\
838 mmcu=at90pwm316|\
839 mmcu=at90usb64*|\
840 mmcu=at90usb128*|\
841 mmcu=at94k: -m avr5}\
842 %{mmcu=atmega256*:-m avr6}\
843 %{mmcu=atmega324*|\
844 mmcu=atmega325*|\
845 mmcu=atmega328p|\
846 mmcu=atmega329*|\
847 mmcu=atmega406|\
848 mmcu=atmega48*|\
849 mmcu=atmega88*|\
850 mmcu=atmega64|\
851 mmcu=atmega644*|\
852 mmcu=atmega645*|\
853 mmcu=atmega649*|\
854 mmcu=atmega128|\
855 mmcu=atmega1284p|\
856 mmcu=atmega162|\
857 mmcu=atmega164*|\
858 mmcu=atmega165*|\
859 mmcu=atmega168*|\
860 mmcu=atmega169*|\
861 mmcu=atmega8hva|\
862 mmcu=atmega16hva|\
863 mmcu=atmega32hvb|\
864 mmcu=attiny48|\
865 mmcu=attiny88|\
866 mmcu=at90can*|\
867 mmcu=at90pwm*|\
868 mmcu=at90usb*: -Tdata 0x800100}\
869 %{mmcu=atmega640|\
870 mmcu=atmega1280|\
871 mmcu=atmega1281|\
872 mmcu=atmega256*: -Tdata 0x800200} "
873
874 #define LIB_SPEC \
875 "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lc }}}}}"
876
877 #define LIBSTDCXX "-lgcc"
878 /* No libstdc++ for now. Empty string doesn't work. */
879
880 #define LIBGCC_SPEC \
881 "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lgcc }}}}}"
882
883 #define STARTFILE_SPEC "%(crt_binutils)"
884
885 #define ENDFILE_SPEC ""
886
887 #define CRT_BINUTILS_SPECS "\
888 %{mmcu=at90s1200|mmcu=avr1:crts1200.o%s} \
889 %{mmcu=attiny11:crttn11.o%s} \
890 %{mmcu=attiny12:crttn12.o%s} \
891 %{mmcu=attiny15:crttn15.o%s} \
892 %{mmcu=attiny28:crttn28.o%s} \
893 %{!mmcu*|mmcu=at90s8515|mmcu=avr2:crts8515.o%s} \
894 %{mmcu=at90s2313:crts2313.o%s} \
895 %{mmcu=at90s2323:crts2323.o%s} \
896 %{mmcu=at90s2333:crts2333.o%s} \
897 %{mmcu=at90s2343:crts2343.o%s} \
898 %{mmcu=attiny22:crttn22.o%s} \
899 %{mmcu=attiny26:crttn26.o%s} \
900 %{mmcu=at90s4433:crts4433.o%s} \
901 %{mmcu=at90s4414:crts4414.o%s} \
902 %{mmcu=at90s4434:crts4434.o%s} \
903 %{mmcu=at90c8534:crtc8534.o%s} \
904 %{mmcu=at90s8535:crts8535.o%s} \
905 %{mmcu=at86rf401:crt86401.o%s} \
906 %{mmcu=attiny13:crttn13.o%s} \
907 %{mmcu=attiny2313|mmcu=avr25:crttn2313.o%s} \
908 %{mmcu=attiny24:crttn24.o%s} \
909 %{mmcu=attiny44:crttn44.o%s} \
910 %{mmcu=attiny84:crttn84.o%s} \
911 %{mmcu=attiny25:crttn25.o%s} \
912 %{mmcu=attiny45:crttn45.o%s} \
913 %{mmcu=attiny85:crttn85.o%s} \
914 %{mmcu=attiny261:crttn261.o%s} \
915 %{mmcu=attiny461:crttn461.o%s} \
916 %{mmcu=attiny861:crttn861.o%s} \
917 %{mmcu=attiny43u:crttn43u.o%s} \
918 %{mmcu=attiny48:crttn48.o%s} \
919 %{mmcu=attiny88:crttn88.o%s} \
920 %{mmcu=at43usb320|mmcu=avr3:crt43320.o%s} \
921 %{mmcu=at43usb355:crt43355.o%s} \
922 %{mmcu=at76c711:crt76711.o%s} \
923 %{mmcu=atmega103|mmcu=avr31:crtm103.o%s} \
924 %{mmcu=at90usb162|mmcu=avr35:crtusb162.o%s} \
925 %{mmcu=at90usb82:crtusb82.o%s} \
926 %{mmcu=atmega8|mmcu=avr4:crtm8.o%s} \
927 %{mmcu=atmega48:crtm48.o%s} \
928 %{mmcu=atmega48p:crtm48p.o%s} \
929 %{mmcu=atmega88:crtm88.o%s} \
930 %{mmcu=atmega88p:crtm88p.o%s} \
931 %{mmcu=atmega8515:crtm8515.o%s} \
932 %{mmcu=atmega8535:crtm8535.o%s} \
933 %{mmcu=at90pwm1:crt90pwm1.o%s} \
934 %{mmcu=at90pwm2:crt90pwm2.o%s} \
935 %{mmcu=at90pwm2b:crt90pwm2b.o%s} \
936 %{mmcu=at90pwm3:crt90pwm3.o%s} \
937 %{mmcu=at90pwm3b:crt90pwm3b.o%s} \
938 %{mmcu=atmega16:crtm16.o%s} \
939 %{mmcu=atmega161|mmcu=avr5:crtm161.o%s} \
940 %{mmcu=atmega162:crtm162.o%s} \
941 %{mmcu=atmega163:crtm163.o%s} \
942 %{mmcu=atmega164p:crtm164p.o%s} \
943 %{mmcu=atmega165:crtm165.o%s} \
944 %{mmcu=atmega165p:crtm165p.o%s} \
945 %{mmcu=atmega168:crtm168.o%s} \
946 %{mmcu=atmega168p:crtm168p.o%s} \
947 %{mmcu=atmega169:crtm169.o%s} \
948 %{mmcu=atmega169p:crtm169p.o%s} \
949 %{mmcu=atmega32:crtm32.o%s} \
950 %{mmcu=atmega323:crtm323.o%s} \
951 %{mmcu=atmega324p:crtm324p.o%s} \
952 %{mmcu=atmega325:crtm325.o%s} \
953 %{mmcu=atmega325p:crtm325p.o%s} \
954 %{mmcu=atmega3250:crtm3250.o%s} \
955 %{mmcu=atmega3250p:crtm3250p.o%s} \
956 %{mmcu=atmega328p:crtm328p.o%s} \
957 %{mmcu=atmega329:crtm329.o%s} \
958 %{mmcu=atmega329p:crtm329p.o%s} \
959 %{mmcu=atmega3290:crtm3290.o%s} \
960 %{mmcu=atmega3290p:crtm3290p.o%s} \
961 %{mmcu=atmega32hvb:crtm32hvb.o%s} \
962 %{mmcu=atmega406:crtm406.o%s} \
963 %{mmcu=atmega64:crtm64.o%s} \
964 %{mmcu=atmega640:crtm640.o%s} \
965 %{mmcu=atmega644:crtm644.o%s} \
966 %{mmcu=atmega644p:crtm644p.o%s} \
967 %{mmcu=atmega645:crtm645.o%s} \
968 %{mmcu=atmega6450:crtm6450.o%s} \
969 %{mmcu=atmega649:crtm649.o%s} \
970 %{mmcu=atmega6490:crtm6490.o%s} \
971 %{mmcu=atmega8hva:crtm8hva.o%s} \
972 %{mmcu=atmega16hva:crtm16hva.o%s} \
973 %{mmcu=at90can32:crtcan32.o%s} \
974 %{mmcu=at90can64:crtcan64.o%s} \
975 %{mmcu=at90pwm216:crt90pwm216.o%s} \
976 %{mmcu=at90pwm316:crt90pwm316.o%s} \
977 %{mmcu=at90usb646:crtusb646.o%s} \
978 %{mmcu=at90usb647:crtusb647.o%s} \
979 %{mmcu=at94k:crtat94k.o%s} \
980 %{mmcu=atmega128|mmcu=avr51:crtm128.o%s} \
981 %{mmcu=atmega1280:crtm1280.o%s} \
982 %{mmcu=atmega1281:crtm1281.o%s} \
983 %{mmcu=atmega1284p:crtm1284p.o%s} \
984 %{mmcu=atmega2560:crtm2560.o%s} \
985 %{mmcu=atmega2561:crtm2561.o%s} \
986 %{mmcu=at90can128:crtcan128.o%s} \
987 %{mmcu=at90usb1286:crtusb1286.o%s} \
988 %{mmcu=at90usb1287:crtusb1287.o%s}"
989
990 #define EXTRA_SPECS {"crt_binutils", CRT_BINUTILS_SPECS},
991
992 /* This is the default without any -mmcu=* option (AT90S*). */
993 #define MULTILIB_DEFAULTS { "mmcu=avr2" }
994
995 /* This is undefined macro for collect2 disabling */
996 #define LINKER_NAME "ld"
997
998 #define TEST_HARD_REG_CLASS(CLASS, REGNO) \
999 TEST_HARD_REG_BIT (reg_class_contents[ (int) (CLASS)], REGNO)
1000
1001 /* Note that the other files fail to use these
1002 in some of the places where they should. */
1003
1004 #if defined(__STDC__) || defined(ALMOST_STDC)
1005 #define AS2(a,b,c) #a " " #b "," #c
1006 #define AS2C(b,c) " " #b "," #c
1007 #define AS3(a,b,c,d) #a " " #b "," #c "," #d
1008 #define AS1(a,b) #a " " #b
1009 #else
1010 #define AS1(a,b) "a b"
1011 #define AS2(a,b,c) "a b,c"
1012 #define AS2C(b,c) " b,c"
1013 #define AS3(a,b,c,d) "a b,c,d"
1014 #endif
1015 #define OUT_AS1(a,b) output_asm_insn (AS1(a,b), operands)
1016 #define OUT_AS2(a,b,c) output_asm_insn (AS2(a,b,c), operands)
1017 #define CR_TAB "\n\t"
1018
1019 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
1020
1021 #define DWARF2_DEBUGGING_INFO 1
1022
1023 #define DWARF2_ADDR_SIZE 4
1024
1025 #define OBJECT_FORMAT_ELF
1026
1027 /* A C structure for machine-specific, per-function data.
1028 This is added to the cfun structure. */
1029 struct machine_function GTY(())
1030 {
1031 /* 'true' - if the current function is a leaf function. */
1032 int is_leaf;
1033
1034 /* 'true' - if current function is a naked function. */
1035 int is_naked;
1036
1037 /* 'true' - if current function is an interrupt function
1038 as specified by the "interrupt" attribute. */
1039 int is_interrupt;
1040
1041 /* 'true' - if current function is a signal function
1042 as specified by the "signal" attribute. */
1043 int is_signal;
1044
1045 /* 'true' - if current function is a signal function
1046 as specified by the "OS_task" attribute. */
1047 int is_OS_task;
1048 };