OSDN Git Service

* config/avr/avr.c (avr_mcu_t): Add atmega8c1, atmega16c1 and
[pf3gnuchains/gcc-fork.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, 2009 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 /* The following macro defines cover classes for Integrated Register
295    Allocator.  Cover classes is a set of non-intersected register
296    classes covering all hard registers used for register allocation
297    purpose.  Any move between two registers of a cover class should be
298    cheaper than load or store of the registers.  The macro value is
299    array of register classes with LIM_REG_CLASSES used as the end
300    marker.  */
301
302 #define IRA_COVER_CLASSES               \
303 {                                       \
304   GENERAL_REGS, LIM_REG_CLASSES         \
305 }
306
307 #define BASE_REG_CLASS (reload_completed ? BASE_POINTER_REGS : POINTER_REGS)
308
309 #define INDEX_REG_CLASS NO_REGS
310
311 #define REGNO_OK_FOR_BASE_P(r) (((r) < FIRST_PSEUDO_REGISTER            \
312                                  && ((r) == REG_X                       \
313                                      || (r) == REG_Y                    \
314                                      || (r) == REG_Z                    \
315                                      || (r) == ARG_POINTER_REGNUM))     \
316                                 || (reg_renumber                        \
317                                     && (reg_renumber[r] == REG_X        \
318                                         || reg_renumber[r] == REG_Y     \
319                                         || reg_renumber[r] == REG_Z     \
320                                         || (reg_renumber[r]             \
321                                             == ARG_POINTER_REGNUM))))
322
323 #define REGNO_OK_FOR_INDEX_P(NUM) 0
324
325 #define PREFERRED_RELOAD_CLASS(X, CLASS) preferred_reload_class(X,CLASS)
326
327 #define SMALL_REGISTER_CLASSES 1
328
329 #define CLASS_LIKELY_SPILLED_P(c) class_likely_spilled_p(c)
330
331 #define CLASS_MAX_NREGS(CLASS, MODE)   class_max_nregs (CLASS, MODE)
332
333 #define STACK_PUSH_CODE POST_DEC
334
335 #define STACK_GROWS_DOWNWARD
336
337 #define STARTING_FRAME_OFFSET 1
338
339 #define STACK_POINTER_OFFSET 1
340
341 #define FIRST_PARM_OFFSET(FUNDECL) 0
342
343 #define STACK_BOUNDARY 8
344
345 #define STACK_POINTER_REGNUM 32
346
347 #define FRAME_POINTER_REGNUM REG_Y
348
349 #define ARG_POINTER_REGNUM 34
350
351 #define STATIC_CHAIN_REGNUM 2
352
353 #define FRAME_POINTER_REQUIRED frame_pointer_required_p()
354
355 /* Offset from the frame pointer register value to the top of the stack.  */
356 #define FRAME_POINTER_CFA_OFFSET(FNDECL) 0
357
358 #define ELIMINABLE_REGS {                                       \
359       {ARG_POINTER_REGNUM, FRAME_POINTER_REGNUM},               \
360         {FRAME_POINTER_REGNUM, STACK_POINTER_REGNUM}            \
361        ,{FRAME_POINTER_REGNUM+1,STACK_POINTER_REGNUM+1}}
362
363 #define CAN_ELIMINATE(FROM, TO) (((FROM) == ARG_POINTER_REGNUM             \
364                                   && (TO) == FRAME_POINTER_REGNUM)         \
365                                  || (((FROM) == FRAME_POINTER_REGNUM       \
366                                       || (FROM) == FRAME_POINTER_REGNUM+1) \
367                                      && ! FRAME_POINTER_REQUIRED           \
368                                      ))
369
370 #define INITIAL_ELIMINATION_OFFSET(FROM, TO, OFFSET)                    \
371      OFFSET = initial_elimination_offset (FROM, TO)
372
373 #define RETURN_ADDR_RTX(count, x) \
374   gen_rtx_MEM (Pmode, memory_address (Pmode, plus_constant (tem, 1)))
375
376 /* Don't use Push rounding. expr.c: emit_single_push_insn is broken 
377    for POST_DEC targets (PR27386).  */
378 /*#define PUSH_ROUNDING(NPUSHED) (NPUSHED)*/
379
380 #define RETURN_POPS_ARGS(FUNDECL, FUNTYPE, STACK_SIZE) 0
381
382 #define FUNCTION_ARG(CUM, MODE, TYPE, NAMED) (function_arg (&(CUM), MODE, TYPE, NAMED))
383
384 typedef struct avr_args {
385   int nregs;                    /* # registers available for passing */
386   int regno;                    /* next available register number */
387 } CUMULATIVE_ARGS;
388
389 #define INIT_CUMULATIVE_ARGS(CUM, FNTYPE, LIBNAME, FNDECL, N_NAMED_ARGS) \
390   init_cumulative_args (&(CUM), FNTYPE, LIBNAME, FNDECL)
391
392 #define FUNCTION_ARG_ADVANCE(CUM, MODE, TYPE, NAMED)    \
393   (function_arg_advance (&CUM, MODE, TYPE, NAMED))
394
395 #define FUNCTION_ARG_REGNO_P(r) function_arg_regno_p(r)
396
397 extern int avr_reg_order[];
398
399 #define RET_REGISTER avr_ret_register ()
400
401 #define LIBCALL_VALUE(MODE)  avr_libcall_value (MODE)
402
403 #define FUNCTION_VALUE_REGNO_P(N) ((int) (N) == RET_REGISTER)
404
405 #define DEFAULT_PCC_STRUCT_RETURN 0
406
407 #define EPILOGUE_USES(REGNO) avr_epilogue_uses(REGNO)
408
409 #define HAVE_POST_INCREMENT 1
410 #define HAVE_PRE_DECREMENT 1
411
412 #define CONSTANT_ADDRESS_P(X) CONSTANT_P (X)
413
414 #define MAX_REGS_PER_ADDRESS 1
415
416 #ifdef REG_OK_STRICT
417 #  define GO_IF_LEGITIMATE_ADDRESS(mode, operand, ADDR) \
418 {                                                       \
419   if (legitimate_address_p (mode, operand, 1))          \
420     goto ADDR;                                          \
421 }
422 #  else
423 #  define GO_IF_LEGITIMATE_ADDRESS(mode, operand, ADDR) \
424 {                                                       \
425   if (legitimate_address_p (mode, operand, 0))          \
426     goto ADDR;                                          \
427 }
428 #endif
429
430 #define REG_OK_FOR_BASE_NOSTRICT_P(X) \
431   (REGNO (X) >= FIRST_PSEUDO_REGISTER || REG_OK_FOR_BASE_STRICT_P(X))
432
433 #define REG_OK_FOR_BASE_STRICT_P(X) REGNO_OK_FOR_BASE_P (REGNO (X))
434
435 #ifdef REG_OK_STRICT
436 #  define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_STRICT_P (X)
437 #else
438 #  define REG_OK_FOR_BASE_P(X) REG_OK_FOR_BASE_NOSTRICT_P (X)
439 #endif
440
441 #define REG_OK_FOR_INDEX_P(X) 0
442
443 #define LEGITIMIZE_ADDRESS(X, OLDX, MODE, WIN)                          \
444 {                                                                       \
445   (X) = legitimize_address (X, OLDX, MODE);                             \
446   if (memory_address_p (MODE, X))                                       \
447     goto WIN;                                                           \
448 }
449
450 #define XEXP_(X,Y) (X)
451
452 /* LEGITIMIZE_RELOAD_ADDRESS will allow register R26/27 to be used, where it
453    is no worse than normal base pointers R28/29 and R30/31. For example:
454    If base offset is greater than 63 bytes or for R++ or --R addressing.  */
455    
456 #define LEGITIMIZE_RELOAD_ADDRESS(X, MODE, OPNUM, TYPE, IND_LEVELS, WIN)    \
457 do {                                                                        \
458   if (1&&(GET_CODE (X) == POST_INC || GET_CODE (X) == PRE_DEC))     \
459     {                                                                       \
460       push_reload (XEXP (X,0), XEXP (X,0), &XEXP (X,0), &XEXP (X,0),        \
461                    POINTER_REGS, GET_MODE (X),GET_MODE (X) , 0, 0,          \
462                    OPNUM, RELOAD_OTHER);                                    \
463       goto WIN;                                                             \
464     }                                                                       \
465   if (GET_CODE (X) == PLUS                                                  \
466       && REG_P (XEXP (X, 0))                                                \
467       && reg_equiv_constant[REGNO (XEXP (X, 0))] == 0                       \
468       && GET_CODE (XEXP (X, 1)) == CONST_INT                                \
469       && INTVAL (XEXP (X, 1)) >= 1)                                         \
470     {                                                                       \
471       int fit = INTVAL (XEXP (X, 1)) <= (64 - GET_MODE_SIZE (MODE));        \
472       if (fit)                                                              \
473         {                                                                   \
474           if (reg_equiv_address[REGNO (XEXP (X, 0))] != 0)                  \
475             {                                                               \
476               int regno = REGNO (XEXP (X, 0));                              \
477               rtx mem = make_memloc (X, regno);                             \
478               push_reload (XEXP (mem,0), NULL, &XEXP (mem,0), NULL,         \
479                            POINTER_REGS, Pmode, VOIDmode, 0, 0,             \
480                            1, ADDR_TYPE (TYPE));                            \
481               push_reload (mem, NULL_RTX, &XEXP (X, 0), NULL,               \
482                            BASE_POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0, \
483                            OPNUM, TYPE);                                    \
484               goto WIN;                                                     \
485             }                                                               \
486         }                                                                   \
487       else if (! (frame_pointer_needed && XEXP (X,0) == frame_pointer_rtx)) \
488         {                                                                   \
489           push_reload (X, NULL_RTX, &X, NULL,                               \
490                        POINTER_REGS, GET_MODE (X), VOIDmode, 0, 0,          \
491                        OPNUM, TYPE);                                        \
492           goto WIN;                                                         \
493         }                                                                   \
494     }                                                                       \
495 } while(0)
496
497 #define GO_IF_MODE_DEPENDENT_ADDRESS(ADDR,LABEL)
498
499 #define LEGITIMATE_CONSTANT_P(X) 1
500
501 #define REGISTER_MOVE_COST(MODE, FROM, TO) ((FROM) == STACK_REG ? 6 \
502                                             : (TO) == STACK_REG ? 12 \
503                                             : 2)
504
505 #define MEMORY_MOVE_COST(MODE,CLASS,IN) ((MODE)==QImode ? 2 :   \
506                                          (MODE)==HImode ? 4 :   \
507                                          (MODE)==SImode ? 8 :   \
508                                          (MODE)==SFmode ? 8 : 16)
509
510 #define BRANCH_COST(speed_p, predictable_p) 0
511
512 #define SLOW_BYTE_ACCESS 0
513
514 #define NO_FUNCTION_CSE
515
516 #define TEXT_SECTION_ASM_OP "\t.text"
517
518 #define DATA_SECTION_ASM_OP "\t.data"
519
520 #define BSS_SECTION_ASM_OP "\t.section .bss"
521
522 /* Define the pseudo-ops used to switch to the .ctors and .dtors sections.
523    There are no shared libraries on this target, and these sections are
524    placed in the read-only program memory, so they are not writable.  */
525
526 #undef CTORS_SECTION_ASM_OP
527 #define CTORS_SECTION_ASM_OP "\t.section .ctors,\"a\",@progbits"
528
529 #undef DTORS_SECTION_ASM_OP
530 #define DTORS_SECTION_ASM_OP "\t.section .dtors,\"a\",@progbits"
531
532 #define TARGET_ASM_CONSTRUCTOR avr_asm_out_ctor
533
534 #define TARGET_ASM_DESTRUCTOR avr_asm_out_dtor
535
536 #define SUPPORTS_INIT_PRIORITY 0
537
538 #define JUMP_TABLES_IN_TEXT_SECTION 0
539
540 #define ASM_COMMENT_START " ; "
541
542 #define ASM_APP_ON "/* #APP */\n"
543
544 #define ASM_APP_OFF "/* #NOAPP */\n"
545
546 /* Switch into a generic section.  */
547 #define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
548 #define TARGET_ASM_INIT_SECTIONS avr_asm_init_sections
549
550 #define ASM_OUTPUT_ASCII(FILE, P, SIZE)  gas_output_ascii (FILE,P,SIZE)
551
552 #define IS_ASM_LOGICAL_LINE_SEPARATOR(C, STR) ((C) == '\n' || ((C) == '$'))
553
554 #define ASM_OUTPUT_COMMON(STREAM, NAME, SIZE, ROUNDED)                     \
555 do {                                                                       \
556      fputs ("\t.comm ", (STREAM));                                         \
557      assemble_name ((STREAM), (NAME));                                     \
558      fprintf ((STREAM), ",%lu,1\n", (unsigned long)(SIZE));                \
559 } while (0)
560
561 #define ASM_OUTPUT_BSS(FILE, DECL, NAME, SIZE, ROUNDED)                 \
562   asm_output_bss ((FILE), (DECL), (NAME), (SIZE), (ROUNDED))
563
564 #define ASM_OUTPUT_LOCAL(STREAM, NAME, SIZE, ROUNDED)                   \
565 do {                                                                    \
566      fputs ("\t.lcomm ", (STREAM));                                     \
567      assemble_name ((STREAM), (NAME));                                  \
568      fprintf ((STREAM), ",%d\n", (int)(SIZE));                          \
569 } while (0)
570
571 #undef TYPE_ASM_OP
572 #undef SIZE_ASM_OP
573 #undef WEAK_ASM_OP
574 #define TYPE_ASM_OP     "\t.type\t"
575 #define SIZE_ASM_OP     "\t.size\t"
576 #define WEAK_ASM_OP     "\t.weak\t"
577 /* Define the strings used for the special svr4 .type and .size directives.
578    These strings generally do not vary from one system running svr4 to
579    another, but if a given system (e.g. m88k running svr) needs to use
580    different pseudo-op names for these, they may be overridden in the
581    file which includes this one.  */
582
583
584 #undef TYPE_OPERAND_FMT
585 #define TYPE_OPERAND_FMT        "@%s"
586 /* The following macro defines the format used to output the second
587    operand of the .type assembler directive.  Different svr4 assemblers
588    expect various different forms for this operand.  The one given here
589    is just a default.  You may need to override it in your machine-
590    specific tm.h file (depending upon the particulars of your assembler).  */
591
592 #define ASM_DECLARE_FUNCTION_NAME(FILE, NAME, DECL)             \
593 avr_asm_declare_function_name ((FILE), (NAME), (DECL))
594
595 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL)                    \
596   do {                                                                  \
597     if (!flag_inhibit_size_directive)                                   \
598       ASM_OUTPUT_MEASURED_SIZE (FILE, FNAME);                           \
599   } while (0)
600
601 #define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL)                       \
602 do {                                                                    \
603   ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object");                     \
604   size_directive_output = 0;                                            \
605   if (!flag_inhibit_size_directive && DECL_SIZE (DECL))                 \
606     {                                                                   \
607       size_directive_output = 1;                                        \
608       ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME,                            \
609                                  int_size_in_bytes (TREE_TYPE (DECL))); \
610     }                                                                   \
611   ASM_OUTPUT_LABEL(FILE, NAME);                                         \
612 } while (0)
613
614 #undef ASM_FINISH_DECLARE_OBJECT
615 #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END)         \
616 do {                                                                     \
617      const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0);             \
618      HOST_WIDE_INT size;                                                 \
619      if (!flag_inhibit_size_directive && DECL_SIZE (DECL)                \
620          && ! AT_END && TOP_LEVEL                                        \
621          && DECL_INITIAL (DECL) == error_mark_node                       \
622          && !size_directive_output)                                      \
623        {                                                                 \
624          size_directive_output = 1;                                      \
625          size = int_size_in_bytes (TREE_TYPE (DECL));                    \
626          ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size);                   \
627        }                                                                 \
628    } while (0)
629
630
631 #define ESCAPES \
632 "\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\
633 \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\
634 \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\
635 \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\
636 \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\
637 \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\
638 \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\
639 \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"
640 /* A table of bytes codes used by the ASM_OUTPUT_ASCII and
641    ASM_OUTPUT_LIMITED_STRING macros.  Each byte in the table
642    corresponds to a particular byte value [0..255].  For any
643    given byte value, if the value in the corresponding table
644    position is zero, the given character can be output directly.
645    If the table value is 1, the byte must be output as a \ooo
646    octal escape.  If the tables value is anything else, then the
647    byte value should be output as a \ followed by the value
648    in the table.  Note that we can use standard UN*X escape
649    sequences for many control characters, but we don't use
650    \a to represent BEL because some svr4 assemblers (e.g. on
651    the i386) don't know about that.  Also, we don't use \v
652    since some versions of gas, such as 2.2 did not accept it.  */
653
654 #define STRING_LIMIT    ((unsigned) 64)
655 #define STRING_ASM_OP   "\t.string\t"
656 /* Some svr4 assemblers have a limit on the number of characters which
657    can appear in the operand of a .string directive.  If your assembler
658    has such a limitation, you should define STRING_LIMIT to reflect that
659    limit.  Note that at least some svr4 assemblers have a limit on the
660    actual number of bytes in the double-quoted string, and that they
661    count each character in an escape sequence as one byte.  Thus, an
662    escape sequence like \377 would count as four bytes.
663
664    If your target assembler doesn't support the .string directive, you
665    should define this to zero.  */
666
667 /* Globalizing directive for a label.  */
668 #define GLOBAL_ASM_OP ".global\t"
669
670 #define SET_ASM_OP      "\t.set\t"
671
672 #define ASM_WEAKEN_LABEL(FILE, NAME)    \
673   do                                    \
674     {                                   \
675       fputs ("\t.weak\t", (FILE));      \
676       assemble_name ((FILE), (NAME));   \
677       fputc ('\n', (FILE));             \
678     }                                   \
679   while (0)
680
681 #define SUPPORTS_WEAK 1
682
683 #define ASM_GENERATE_INTERNAL_LABEL(STRING, PREFIX, NUM)        \
684 sprintf (STRING, "*.%s%lu", PREFIX, (unsigned long)(NUM))
685
686 #define HAS_INIT_SECTION 1
687
688 #define REGISTER_NAMES {                                \
689   "r0","r1","r2","r3","r4","r5","r6","r7",              \
690     "r8","r9","r10","r11","r12","r13","r14","r15",      \
691     "r16","r17","r18","r19","r20","r21","r22","r23",    \
692     "r24","r25","r26","r27","r28","r29","r30","r31",    \
693     "__SP_L__","__SP_H__","argL","argH"}
694
695 #define FINAL_PRESCAN_INSN(insn, operand, nop) final_prescan_insn (insn, operand,nop)
696
697 #define PRINT_OPERAND(STREAM, X, CODE) print_operand (STREAM, X, CODE)
698
699 #define PRINT_OPERAND_PUNCT_VALID_P(CODE) ((CODE) == '~' || (CODE) == '!')
700
701 #define PRINT_OPERAND_ADDRESS(STREAM, X) print_operand_address(STREAM, X)
702
703 #define USER_LABEL_PREFIX ""
704
705 #define ASSEMBLER_DIALECT AVR_HAVE_MOVW
706
707 #define ASM_OUTPUT_REG_PUSH(STREAM, REGNO)      \
708 {                                               \
709   gcc_assert (REGNO < 32);                      \
710   fprintf (STREAM, "\tpush\tr%d", REGNO);       \
711 }
712
713 #define ASM_OUTPUT_REG_POP(STREAM, REGNO)       \
714 {                                               \
715   gcc_assert (REGNO < 32);                      \
716   fprintf (STREAM, "\tpop\tr%d", REGNO);        \
717 }
718
719 #define ASM_OUTPUT_ADDR_VEC_ELT(STREAM, VALUE)          \
720   avr_output_addr_vec_elt(STREAM, VALUE)
721
722 #define ASM_OUTPUT_CASE_LABEL(STREAM, PREFIX, NUM, TABLE) \
723   (switch_to_section (progmem_section), \
724    (*targetm.asm_out.internal_label) (STREAM, PREFIX, NUM))
725
726 #define ASM_OUTPUT_SKIP(STREAM, N)              \
727 fprintf (STREAM, "\t.skip %lu,0\n", (unsigned long)(N))
728
729 #define ASM_OUTPUT_ALIGN(STREAM, POWER)                 \
730   do {                                                  \
731       if ((POWER) > 1)                                  \
732           fprintf (STREAM, "\t.p2align\t%d\n", POWER);  \
733   } while (0)
734
735 #define CASE_VECTOR_MODE HImode
736
737 extern int avr_case_values_threshold;
738
739 #define CASE_VALUES_THRESHOLD avr_case_values_threshold
740
741 #undef WORD_REGISTER_OPERATIONS
742
743 #define MOVE_MAX 4
744
745 #define TRULY_NOOP_TRUNCATION(OUTPREC, INPREC) 1
746
747 #define Pmode HImode
748
749 #define FUNCTION_MODE HImode
750
751 #define DOLLARS_IN_IDENTIFIERS 0
752
753 #define NO_DOLLAR_IN_LABEL 1
754
755 #define TRAMPOLINE_TEMPLATE(FILE) \
756   internal_error ("trampolines not supported")
757
758 #define TRAMPOLINE_SIZE 4
759
760 #define INITIALIZE_TRAMPOLINE(TRAMP, FNADDR, CXT)                             \
761 {                                                                             \
762   emit_move_insn (gen_rtx_MEM (HImode, plus_constant ((TRAMP), 2)), CXT);    \
763   emit_move_insn (gen_rtx_MEM (HImode, plus_constant ((TRAMP), 6)), FNADDR); \
764 }
765 /* Store in cc_status the expressions
766    that the condition codes will describe
767    after execution of an instruction whose pattern is EXP.
768    Do not alter them if the instruction would not alter the cc's.  */
769
770 #define NOTICE_UPDATE_CC(EXP, INSN) notice_update_cc(EXP, INSN)
771
772 /* The add insns don't set overflow in a usable way.  */
773 #define CC_OVERFLOW_UNUSABLE 01000
774 /* The mov,and,or,xor insns don't set carry.  That's ok though as the
775    Z bit is all we need when doing unsigned comparisons on the result of
776    these insns (since they're always with 0).  However, conditions.h has
777    CC_NO_OVERFLOW defined for this purpose.  Rename it to something more
778    understandable.  */
779 #define CC_NO_CARRY CC_NO_OVERFLOW
780
781
782 /* Output assembler code to FILE to increment profiler label # LABELNO
783    for profiling a function entry.  */
784
785 #define FUNCTION_PROFILER(FILE, LABELNO)  \
786   fprintf (FILE, "/* profiler %d */", (LABELNO))
787
788 #define ADJUST_INSN_LENGTH(INSN, LENGTH) (LENGTH =\
789                                           adjust_insn_length (INSN, LENGTH))
790
791 #define CPP_SPEC "%{posix:-D_POSIX_SOURCE}"
792
793 #define CC1_SPEC "%{profile:-p}"
794
795 #define CC1PLUS_SPEC "%{!frtti:-fno-rtti} \
796     %{!fenforce-eh-specs:-fno-enforce-eh-specs} \
797     %{!fexceptions:-fno-exceptions}"
798 /* A C string constant that tells the GCC driver program options to
799    pass to `cc1plus'.  */
800
801 #define ASM_SPEC "%{mmcu=avr25:-mmcu=avr2;mmcu=avr35:-mmcu=avr3;mmcu=avr31:-mmcu=avr3;mmcu=avr51:-mmcu=avr5;\
802 mmcu=*:-mmcu=%*}"
803
804 #define LINK_SPEC "\
805 %{mrelax:--relax\
806          %{mpmem-wrap-around:%{mmcu=at90usb8*:--pmem-wrap-around=8k}\
807                              %{mmcu=atmega16*:--pmem-wrap-around=16k}\
808                              %{mmcu=atmega32*|\
809                                mmcu=at90can32*:--pmem-wrap-around=32k}\
810                              %{mmcu=atmega64*|\
811                                mmcu=at90can64*|\
812                                mmcu=at90usb64*:--pmem-wrap-around=64k}}}\
813 %{!mmcu*: -m avr2}\
814 %{mmcu=at90s1200|\
815   mmcu=attiny11|\
816   mmcu=attiny12|\
817   mmcu=attiny15|\
818   mmcu=attiny28: -m avr1}\
819 %{mmcu=attiny22|\
820   mmcu=attiny26|\
821   mmcu=at90s2*|\
822   mmcu=at90s4*|\
823   mmcu=at90s8*|\
824   mmcu=at90c8*|\
825   mmcu=at86rf401|\
826   mmcu=ata6289|\
827   mmcu=attiny13*|\
828   mmcu=attiny2313|\
829   mmcu=attiny24|\
830   mmcu=attiny25|\
831   mmcu=attiny261|\
832   mmcu=attiny4*|\
833   mmcu=attiny8*: -m avr2}\
834 %{mmcu=atmega103|\
835   mmcu=at43*|\
836   mmcu=at76*|\
837   mmcu=at90usb82|\
838   mmcu=at90usb162|\
839   mmcu=attiny16*|\
840   mmcu=attiny32*: -m avr3}\
841 %{mmcu=atmega8*|\
842   mmcu=atmega4*|\
843   mmcu=at90pwm1|\
844   mmcu=at90pwm2|\
845   mmcu=at90pwm2b|\
846   mmcu=at90pwm3|\
847   mmcu=at90pwm3b|\
848   mmcu=at90pwm81: -m avr4}\
849 %{mmcu=atmega16*|\
850   mmcu=atmega32*|\
851   mmcu=atmega406|\
852   mmcu=atmega64*|\
853   mmcu=atmega128*|\
854   mmcu=at90can*|\
855   mmcu=at90pwm216|\
856   mmcu=at90pwm316|\
857   mmcu=at90scr100|\
858   mmcu=at90usb64*|\
859   mmcu=at90usb128*|\
860   mmcu=at94k|\
861   mmcu=m3000*|\
862   mmcu=m3001*: -m avr5}\
863 %{mmcu=atmega256*:-m avr6}\
864 %{mmcu=atmega324*|\
865   mmcu=atmega325*|\
866   mmcu=atmega328p|\
867   mmcu=atmega329*|\
868   mmcu=atmega406|\
869   mmcu=atmega48*|\
870   mmcu=atmega88*|\
871   mmcu=atmega64|\
872   mmcu=atmega644*|\
873   mmcu=atmega645*|\
874   mmcu=atmega649*|\
875   mmcu=atmega128|\
876   mmcu=atmega1284p|\
877   mmcu=atmega162|\
878   mmcu=atmega164*|\
879   mmcu=atmega165*|\
880   mmcu=atmega168*|\
881   mmcu=atmega169*|\
882   mmcu=atmega4hv*|\
883   mmcu=atmega8hv*|\
884   mmcu=atmega16hv*|\
885   mmcu=atmega32hv*|\
886   mmcu=attiny48|\
887   mmcu=attiny88|\
888   mmcu=attiny87|\
889   mmcu=attiny167|\
890   mmcu=attiny327|\
891   mmcu=at90can*|\
892   mmcu=at90pwm*|\
893   mmcu=atmega8c1|\
894   mmcu=atmega16c1|\
895   mmcu=atmega32c1|\
896   mmcu=atmega64c1|\
897   mmcu=atmega8m1|\
898   mmcu=atmega16m1|\
899   mmcu=atmega32m1|\
900   mmcu=atmega64m1|\
901   mmcu=atmega16u4|\
902   mmcu=atmega32u*|\
903   mmcu=at90scr100|\
904   mmcu=ata6289|\
905   mmcu=at90usb*: -Tdata 0x800100}\
906 %{mmcu=atmega640|\
907   mmcu=atmega1280|\
908   mmcu=atmega1281|\
909   mmcu=atmega256*|\
910   mmcu=atmega128rfa1: -Tdata 0x800200}\
911 %{mmcu=m3000*|\
912   mmcu=m3001*: -Tdata 0x801000}"
913
914 #define LIB_SPEC \
915   "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lc }}}}}"
916
917 #define LIBSTDCXX "-lgcc"
918 /* No libstdc++ for now.  Empty string doesn't work.  */
919
920 #define LIBGCC_SPEC \
921   "%{!mmcu=at90s1*:%{!mmcu=attiny11:%{!mmcu=attiny12:%{!mmcu=attiny15:%{!mmcu=attiny28: -lgcc }}}}}"
922
923 #define STARTFILE_SPEC "%(crt_binutils)"
924
925 #define ENDFILE_SPEC ""
926
927 #define CRT_BINUTILS_SPECS "\
928 %{mmcu=at90s1200|mmcu=avr1:crts1200.o%s} \
929 %{mmcu=attiny11:crttn11.o%s} \
930 %{mmcu=attiny12:crttn12.o%s} \
931 %{mmcu=attiny15:crttn15.o%s} \
932 %{mmcu=attiny28:crttn28.o%s} \
933 %{!mmcu*|mmcu=at90s8515|mmcu=avr2:crts8515.o%s} \
934 %{mmcu=at90s2313:crts2313.o%s} \
935 %{mmcu=at90s2323:crts2323.o%s} \
936 %{mmcu=at90s2333:crts2333.o%s} \
937 %{mmcu=at90s2343:crts2343.o%s} \
938 %{mmcu=attiny22:crttn22.o%s} \
939 %{mmcu=attiny26:crttn26.o%s} \
940 %{mmcu=at90s4433:crts4433.o%s} \
941 %{mmcu=at90s4414:crts4414.o%s} \
942 %{mmcu=at90s4434:crts4434.o%s} \
943 %{mmcu=at90c8534:crtc8534.o%s} \
944 %{mmcu=at90s8535:crts8535.o%s} \
945 %{mmcu=at86rf401:crt86401.o%s} \
946 %{mmcu=attiny13:crttn13.o%s} \
947 %{mmcu=attiny13a:crttn13a.o%s} \
948 %{mmcu=attiny2313|mmcu=avr25:crttn2313.o%s} \
949 %{mmcu=attiny24:crttn24.o%s} \
950 %{mmcu=attiny44:crttn44.o%s} \
951 %{mmcu=attiny84:crttn84.o%s} \
952 %{mmcu=attiny25:crttn25.o%s} \
953 %{mmcu=attiny45:crttn45.o%s} \
954 %{mmcu=attiny85:crttn85.o%s} \
955 %{mmcu=attiny261:crttn261.o%s} \
956 %{mmcu=attiny461:crttn461.o%s} \
957 %{mmcu=attiny861:crttn861.o%s} \
958 %{mmcu=attiny43u:crttn43u.o%s} \
959 %{mmcu=attiny87:crttn87.o%s} \
960 %{mmcu=attiny48:crttn48.o%s} \
961 %{mmcu=attiny88:crttn88.o%s} \
962 %{mmcu=ata6289:crta6289.o%s} \
963 %{mmcu=at43usb355|mmcu=avr3:crt43355.o%s} \
964 %{mmcu=at76c711:crt76711.o%s} \
965 %{mmcu=atmega103|mmcu=avr31:crtm103.o%s} \
966 %{mmcu=at43usb320:crt43320.o%s} \
967 %{mmcu=at90usb162|mmcu=avr35:crtusb162.o%s} \
968 %{mmcu=at90usb82:crtusb82.o%s} \
969 %{mmcu=attiny167:crttn167.o%s} \
970 %{mmcu=attiny327:crttn327.o%s} \
971 %{mmcu=atmega8|mmcu=avr4:crtm8.o%s} \
972 %{mmcu=atmega48:crtm48.o%s} \
973 %{mmcu=atmega48p:crtm48p.o%s} \
974 %{mmcu=atmega88:crtm88.o%s} \
975 %{mmcu=atmega88p:crtm88p.o%s} \
976 %{mmcu=atmega8515:crtm8515.o%s} \
977 %{mmcu=atmega8535:crtm8535.o%s} \
978 %{mmcu=atmega8c1:crtm8c1.o%s} \
979 %{mmcu=atmega8m1:crtm8m1.o%s} \
980 %{mmcu=at90pwm1:crt90pwm1.o%s} \
981 %{mmcu=at90pwm2:crt90pwm2.o%s} \
982 %{mmcu=at90pwm2b:crt90pwm2b.o%s} \
983 %{mmcu=at90pwm3:crt90pwm3.o%s} \
984 %{mmcu=at90pwm3b:crt90pwm3b.o%s} \
985 %{mmcu=at90pwm81:crt90pwm81.o%s} \
986 %{mmcu=atmega16:crtm16.o%s} \
987 %{mmcu=atmega161|mmcu=avr5:crtm161.o%s} \
988 %{mmcu=atmega162:crtm162.o%s} \
989 %{mmcu=atmega163:crtm163.o%s} \
990 %{mmcu=atmega164p:crtm164p.o%s} \
991 %{mmcu=atmega165:crtm165.o%s} \
992 %{mmcu=atmega165p:crtm165p.o%s} \
993 %{mmcu=atmega168:crtm168.o%s} \
994 %{mmcu=atmega168p:crtm168p.o%s} \
995 %{mmcu=atmega169:crtm169.o%s} \
996 %{mmcu=atmega169p:crtm169p.o%s} \
997 %{mmcu=atmega32:crtm32.o%s} \
998 %{mmcu=atmega323:crtm323.o%s} \
999 %{mmcu=atmega324p:crtm324p.o%s} \
1000 %{mmcu=atmega325:crtm325.o%s} \
1001 %{mmcu=atmega325p:crtm325p.o%s} \
1002 %{mmcu=atmega3250:crtm3250.o%s} \
1003 %{mmcu=atmega3250p:crtm3250p.o%s} \
1004 %{mmcu=atmega328p:crtm328p.o%s} \
1005 %{mmcu=atmega329:crtm329.o%s} \
1006 %{mmcu=atmega329p:crtm329p.o%s} \
1007 %{mmcu=atmega3290:crtm3290.o%s} \
1008 %{mmcu=atmega3290p:crtm3290p.o%s} \
1009 %{mmcu=atmega406:crtm406.o%s} \
1010 %{mmcu=atmega64:crtm64.o%s} \
1011 %{mmcu=atmega640:crtm640.o%s} \
1012 %{mmcu=atmega644:crtm644.o%s} \
1013 %{mmcu=atmega644p:crtm644p.o%s} \
1014 %{mmcu=atmega645:crtm645.o%s} \
1015 %{mmcu=atmega6450:crtm6450.o%s} \
1016 %{mmcu=atmega649:crtm649.o%s} \
1017 %{mmcu=atmega6490:crtm6490.o%s} \
1018 %{mmcu=atmega8hva:crtm8hva.o%s} \
1019 %{mmcu=atmega16hva:crtm16hva.o%s} \
1020 %{mmcu=atmega16hvb:crtm16hvb.o%s} \
1021 %{mmcu=atmega32hvb:crtm32hvb.o%s} \
1022 %{mmcu=atmega4hvd:crtm4hvd.o%s} \
1023 %{mmcu=atmega8hvd:crtm8hvd.o%s} \
1024 %{mmcu=at90can32:crtcan32.o%s} \
1025 %{mmcu=at90can64:crtcan64.o%s} \
1026 %{mmcu=at90pwm216:crt90pwm216.o%s} \
1027 %{mmcu=at90pwm316:crt90pwm316.o%s} \
1028 %{mmcu=atmega16c1:crtm16c1.o%s} \
1029 %{mmcu=atmega32c1:crtm32c1.o%s} \
1030 %{mmcu=atmega64c1:crtm64c1.o%s} \
1031 %{mmcu=atmega16m1:crtm16m1.o%s} \
1032 %{mmcu=atmega32m1:crtm32m1.o%s} \
1033 %{mmcu=atmega64m1:crtm64m1.o%s} \
1034 %{mmcu=atmega16u4:crtm16u4.o%s} \
1035 %{mmcu=atmega32u4:crtm32u4.o%s} \
1036 %{mmcu=atmega32u6:crtm32u6.o%s} \
1037 %{mmcu=at90scr100:crt90scr100.o%s} \
1038 %{mmcu=at90usb646:crtusb646.o%s} \
1039 %{mmcu=at90usb647:crtusb647.o%s} \
1040 %{mmcu=at94k:crtat94k.o%s} \
1041 %{mmcu=atmega128|mmcu=avr51:crtm128.o%s} \
1042 %{mmcu=atmega1280:crtm1280.o%s} \
1043 %{mmcu=atmega1281:crtm1281.o%s} \
1044 %{mmcu=atmega1284p:crtm1284p.o%s} \
1045 %{mmcu=at90can128:crtcan128.o%s} \
1046 %{mmcu=atmega128rfa1:crtm128rfa1.o%s} \
1047 %{mmcu=at90usb1286:crtusb1286.o%s} \
1048 %{mmcu=at90usb1287:crtusb1287.o%s} \
1049 %{mmcu=m3000f:crtm3000f.o%s} \
1050 %{mmcu=m3000s:crtm3000s.o%s} \
1051 %{mmcu=m3001b:crtm3001b.o%s} \
1052 %{mmcu=atmega2560|mmcu=avr6:crtm2560.o%s} \
1053 %{mmcu=atmega2561:crtm2561.o%s}"
1054
1055 #define EXTRA_SPECS {"crt_binutils", CRT_BINUTILS_SPECS},
1056
1057 /* This is the default without any -mmcu=* option (AT90S*).  */
1058 #define MULTILIB_DEFAULTS { "mmcu=avr2" }
1059
1060 /* This is undefined macro for collect2 disabling */
1061 #define LINKER_NAME "ld"
1062
1063 #define TEST_HARD_REG_CLASS(CLASS, REGNO) \
1064   TEST_HARD_REG_BIT (reg_class_contents[ (int) (CLASS)], REGNO)
1065
1066 /* Note that the other files fail to use these
1067    in some of the places where they should.  */
1068
1069 #if defined(__STDC__) || defined(ALMOST_STDC)
1070 #define AS2(a,b,c) #a " " #b "," #c
1071 #define AS2C(b,c) " " #b "," #c
1072 #define AS3(a,b,c,d) #a " " #b "," #c "," #d
1073 #define AS1(a,b) #a " " #b
1074 #else
1075 #define AS1(a,b) "a     b"
1076 #define AS2(a,b,c) "a   b,c"
1077 #define AS2C(b,c) " b,c"
1078 #define AS3(a,b,c,d) "a b,c,d"
1079 #endif
1080 #define OUT_AS1(a,b) output_asm_insn (AS1(a,b), operands)
1081 #define OUT_AS2(a,b,c) output_asm_insn (AS2(a,b,c), operands)
1082 #define CR_TAB "\n\t"
1083
1084 #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG
1085
1086 #define DWARF2_DEBUGGING_INFO 1
1087
1088 #define DWARF2_ADDR_SIZE 4
1089
1090 #define OBJECT_FORMAT_ELF
1091
1092 #define HARD_REGNO_RENAME_OK(OLD_REG, NEW_REG) \
1093   avr_hard_regno_rename_ok (OLD_REG, NEW_REG)
1094
1095 /* A C structure for machine-specific, per-function data.
1096    This is added to the cfun structure.  */
1097 struct machine_function GTY(())
1098 {
1099   /* 'true' - if the current function is a leaf function.  */
1100   int is_leaf;
1101
1102   /* 'true' - if current function is a naked function.  */
1103   int is_naked;
1104
1105   /* 'true' - if current function is an interrupt function 
1106      as specified by the "interrupt" attribute.  */
1107   int is_interrupt;
1108
1109   /* 'true' - if current function is a signal function 
1110      as specified by the "signal" attribute.  */
1111   int is_signal;
1112   
1113   /* 'true' - if current function is a 'task' function 
1114      as specified by the "OS_task" attribute.  */
1115   int is_OS_task;
1116
1117   /* 'true' - if current function is a 'main' function 
1118      as specified by the "OS_main" attribute.  */
1119   int is_OS_main;
1120 };