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4291d9c8 | 1 | /* Top level of GNU C compiler |
5ae3bec5 | 2 | Copyright (C) 1987, 88, 89, 92-6, 1997 Free Software Foundation, Inc. |
4291d9c8 RS |
3 | |
4 | This file is part of GNU CC. | |
5 | ||
6 | GNU CC is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GNU CC is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
17 | along with GNU CC; see the file COPYING. If not, write to | |
e9fa0c7c RK |
18 | the Free Software Foundation, 59 Temple Place - Suite 330, |
19 | Boston, MA 02111-1307, USA. */ | |
4291d9c8 | 20 | |
4291d9c8 RS |
21 | /* This is the top level of cc1/c++. |
22 | It parses command args, opens files, invokes the various passes | |
23 | in the proper order, and counts the time used by each. | |
24 | Error messages and low-level interface to malloc also handled here. */ | |
25 | ||
26 | #include "config.h" | |
e0e2a8da | 27 | #ifdef __STDC__ |
04fe4385 | 28 | #include <stdarg.h> |
e0e2a8da | 29 | #else |
04fe4385 | 30 | #include <varargs.h> |
e0e2a8da | 31 | #endif |
4291d9c8 RS |
32 | #include <stdio.h> |
33 | #include <signal.h> | |
34 | #include <setjmp.h> | |
eb711c86 | 35 | #include <sys/types.h> |
ea9182cd | 36 | #include <ctype.h> |
4291d9c8 RS |
37 | #include <sys/stat.h> |
38 | ||
9580b583 | 39 | #ifndef _WIN32 |
4291d9c8 RS |
40 | #ifdef USG |
41 | #undef FLOAT | |
42 | #include <sys/param.h> | |
43 | /* This is for hpux. It is a real screw. They should change hpux. */ | |
44 | #undef FLOAT | |
45 | #include <sys/times.h> | |
46 | #include <time.h> /* Correct for hpux at least. Is it good on other USG? */ | |
47 | #undef FFS /* Some systems define this in param.h. */ | |
48 | #else | |
49 | #ifndef VMS | |
50 | #include <sys/time.h> | |
51 | #include <sys/resource.h> | |
52 | #endif | |
53 | #endif | |
eb910b5a | 54 | #endif |
4291d9c8 RS |
55 | |
56 | #include "input.h" | |
57 | #include "tree.h" | |
4291d9c8 RS |
58 | #include "rtl.h" |
59 | #include "flags.h" | |
60 | #include "insn-attr.h" | |
d0d4af87 | 61 | #include "defaults.h" |
e14417fa RK |
62 | #include "output.h" |
63 | #include "bytecode.h" | |
64 | #include "bc-emit.h" | |
3d195391 | 65 | #include "except.h" |
f246a305 RS |
66 | |
67 | #ifdef XCOFF_DEBUGGING_INFO | |
68 | #include "xcoffout.h" | |
69 | #endif | |
4291d9c8 RS |
70 | \f |
71 | #ifdef VMS | |
72 | /* The extra parameters substantially improve the I/O performance. */ | |
73 | static FILE * | |
37c9f674 | 74 | vms_fopen (fname, type) |
4291d9c8 RS |
75 | char * fname; |
76 | char * type; | |
77 | { | |
37c9f674 RK |
78 | /* The <stdio.h> in the gcc-vms-1.42 distribution prototypes fopen with two |
79 | fixed arguments, which matches ANSI's specification but not VAXCRTL's | |
80 | pre-ANSI implementation. This hack circumvents the mismatch problem. */ | |
81 | FILE *(*vmslib_fopen)() = (FILE *(*)()) fopen; | |
82 | ||
83 | if (*type == 'w') | |
84 | return (*vmslib_fopen) (fname, type, "mbc=32", | |
85 | "deq=64", "fop=tef", "shr=nil"); | |
86 | else | |
87 | return (*vmslib_fopen) (fname, type, "mbc=32"); | |
4291d9c8 | 88 | } |
37c9f674 RK |
89 | #define fopen vms_fopen |
90 | #endif /* VMS */ | |
4291d9c8 RS |
91 | |
92 | #ifndef DEFAULT_GDB_EXTENSIONS | |
93 | #define DEFAULT_GDB_EXTENSIONS 1 | |
94 | #endif | |
95 | ||
30657ee3 RK |
96 | /* If more than one debugging type is supported, you must define |
97 | PREFERRED_DEBUGGING_TYPE to choose a format in a system-dependent way. | |
98 | ||
99 | This is one long line cause VAXC can't handle a \-newline. */ | |
9a666dda | 100 | #if 1 < (defined (DBX_DEBUGGING_INFO) + defined (SDB_DEBUGGING_INFO) + defined (DWARF_DEBUGGING_INFO) + defined (DWARF2_DEBUGGING_INFO) + defined (XCOFF_DEBUGGING_INFO)) |
30657ee3 RK |
101 | #ifndef PREFERRED_DEBUGGING_TYPE |
102 | You Lose! You must define PREFERRED_DEBUGGING_TYPE! | |
103 | #endif /* no PREFERRED_DEBUGGING_TYPE */ | |
104 | #else /* Only one debugging format supported. Define PREFERRED_DEBUGGING_TYPE | |
105 | so the following code needn't care. */ | |
106 | #ifdef DBX_DEBUGGING_INFO | |
107 | #define PREFERRED_DEBUGGING_TYPE DBX_DEBUG | |
108 | #endif | |
109 | #ifdef SDB_DEBUGGING_INFO | |
110 | #define PREFERRED_DEBUGGING_TYPE SDB_DEBUG | |
111 | #endif | |
112 | #ifdef DWARF_DEBUGGING_INFO | |
113 | #define PREFERRED_DEBUGGING_TYPE DWARF_DEBUG | |
114 | #endif | |
9a666dda JM |
115 | #ifdef DWARF2_DEBUGGING_INFO |
116 | #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG | |
117 | #endif | |
30657ee3 RK |
118 | #ifdef XCOFF_DEBUGGING_INFO |
119 | #define PREFERRED_DEBUGGING_TYPE XCOFF_DEBUG | |
120 | #endif | |
121 | #endif /* More than one debugger format enabled. */ | |
122 | ||
123 | /* If still not defined, must have been because no debugging formats | |
124 | are supported. */ | |
125 | #ifndef PREFERRED_DEBUGGING_TYPE | |
126 | #define PREFERRED_DEBUGGING_TYPE NO_DEBUG | |
127 | #endif | |
128 | ||
4291d9c8 RS |
129 | extern int rtx_equal_function_value_matters; |
130 | ||
72c8bb7f | 131 | #if ! (defined (VMS) || defined (OS2)) |
4291d9c8 | 132 | extern char **environ; |
4d7e336b | 133 | #endif |
4291d9c8 RS |
134 | extern char *version_string, *language_string; |
135 | ||
b0316e35 RS |
136 | /* Carry information from ASM_DECLARE_OBJECT_NAME |
137 | to ASM_FINISH_DECLARE_OBJECT. */ | |
138 | ||
139 | extern int size_directive_output; | |
5e10b3cc | 140 | extern tree last_assemble_variable_decl; |
b0316e35 | 141 | |
4291d9c8 RS |
142 | extern void init_lex (); |
143 | extern void init_decl_processing (); | |
144 | extern void init_obstacks (); | |
145 | extern void init_tree_codes (); | |
146 | extern void init_rtl (); | |
34d0205f | 147 | extern void init_regs (); |
4291d9c8 RS |
148 | extern void init_optabs (); |
149 | extern void init_stmt (); | |
150 | extern void init_reg_sets (); | |
151 | extern void dump_flow_info (); | |
152 | extern void dump_sched_info (); | |
153 | extern void dump_local_alloc (); | |
154 | ||
155 | void rest_of_decl_compilation (); | |
d18225c4 RK |
156 | void error_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); |
157 | void error_with_decl PVPROTO((tree decl, char *s, ...)); | |
158 | void error_for_asm PVPROTO((rtx insn, char *s, ...)); | |
159 | void error PVPROTO((char *s, ...)); | |
160 | void fatal PVPROTO((char *s, ...)); | |
161 | void warning_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); | |
162 | void warning_with_decl PVPROTO((tree decl, char *s, ...)); | |
163 | void warning_for_asm PVPROTO((rtx insn, char *s, ...)); | |
164 | void warning PVPROTO((char *s, ...)); | |
165 | void pedwarn PVPROTO((char *s, ...)); | |
166 | void pedwarn_with_decl PVPROTO((tree decl, char *s, ...)); | |
167 | void pedwarn_with_file_and_line PVPROTO((char *file, int line, char *s, ...)); | |
168 | void sorry PVPROTO((char *s, ...)); | |
169 | void really_sorry PVPROTO((char *s, ...)); | |
4291d9c8 RS |
170 | void fancy_abort (); |
171 | #ifndef abort | |
172 | void abort (); | |
173 | #endif | |
174 | void set_target_switch (); | |
4291d9c8 RS |
175 | static char *decl_name (); |
176 | ||
3d5cdd42 DE |
177 | void print_version (); |
178 | int print_single_switch (); | |
179 | void print_switch_values (); | |
180 | /* Length of line when printing switch values. */ | |
181 | #define MAX_LINE 75 | |
182 | ||
efa00f4e RK |
183 | #ifdef __alpha |
184 | extern char *sbrk (); | |
185 | #endif | |
186 | ||
4291d9c8 RS |
187 | /* Name of program invoked, sans directories. */ |
188 | ||
189 | char *progname; | |
190 | ||
191 | /* Copy of arguments to main. */ | |
192 | int save_argc; | |
193 | char **save_argv; | |
194 | \f | |
195 | /* Name of current original source file (what was input to cpp). | |
196 | This comes from each #-command in the actual input. */ | |
197 | ||
198 | char *input_filename; | |
199 | ||
200 | /* Name of top-level original source file (what was input to cpp). | |
201 | This comes from the #-command at the beginning of the actual input. | |
202 | If there isn't any there, then this is the cc1 input file name. */ | |
203 | ||
204 | char *main_input_filename; | |
205 | ||
206 | /* Stream for reading from the input file. */ | |
207 | ||
208 | FILE *finput; | |
209 | ||
210 | /* Current line number in real source file. */ | |
211 | ||
212 | int lineno; | |
213 | ||
214 | /* Stack of currently pending input files. */ | |
215 | ||
216 | struct file_stack *input_file_stack; | |
217 | ||
218 | /* Incremented on each change to input_file_stack. */ | |
219 | int input_file_stack_tick; | |
220 | ||
221 | /* FUNCTION_DECL for function now being parsed or compiled. */ | |
222 | ||
223 | extern tree current_function_decl; | |
224 | ||
225 | /* Name to use as base of names for dump output files. */ | |
226 | ||
227 | char *dump_base_name; | |
228 | ||
229 | /* Bit flags that specify the machine subtype we are compiling for. | |
230 | Bits are tested using macros TARGET_... defined in the tm.h file | |
231 | and set by `-m...' switches. Must be defined in rtlanal.c. */ | |
232 | ||
233 | extern int target_flags; | |
234 | ||
235 | /* Flags saying which kinds of debugging dump have been requested. */ | |
236 | ||
237 | int rtl_dump = 0; | |
238 | int rtl_dump_and_exit = 0; | |
239 | int jump_opt_dump = 0; | |
240 | int cse_dump = 0; | |
241 | int loop_dump = 0; | |
242 | int cse2_dump = 0; | |
243 | int flow_dump = 0; | |
244 | int combine_dump = 0; | |
245 | int sched_dump = 0; | |
246 | int local_reg_dump = 0; | |
247 | int global_reg_dump = 0; | |
248 | int sched2_dump = 0; | |
249 | int jump2_opt_dump = 0; | |
250 | int dbr_sched_dump = 0; | |
251 | int flag_print_asm_name = 0; | |
252 | int stack_reg_dump = 0; | |
253 | ||
254 | /* Name for output file of assembly code, specified with -o. */ | |
255 | ||
256 | char *asm_file_name; | |
257 | ||
258 | /* Value of the -G xx switch, and whether it was passed or not. */ | |
259 | int g_switch_value; | |
260 | int g_switch_set; | |
261 | ||
262 | /* Type(s) of debugging information we are producing (if any). | |
263 | See flags.h for the definitions of the different possible | |
264 | types of debugging information. */ | |
265 | enum debug_info_type write_symbols = NO_DEBUG; | |
266 | ||
267 | /* Level of debugging information we are producing. See flags.h | |
268 | for the definitions of the different possible levels. */ | |
269 | enum debug_info_level debug_info_level = DINFO_LEVEL_NONE; | |
270 | ||
a53d0bcc RS |
271 | /* Nonzero means use GNU-only extensions in the generated symbolic |
272 | debugging information. */ | |
273 | /* Currently, this only has an effect when write_symbols is set to | |
274 | DBX_DEBUG, XCOFF_DEBUG, or DWARF_DEBUG. */ | |
275 | int use_gnu_debug_info_extensions = 0; | |
4291d9c8 RS |
276 | |
277 | /* Nonzero means do optimizations. -O. | |
278 | Particular numeric values stand for particular amounts of optimization; | |
279 | thus, -O2 stores 2 here. However, the optimizations beyond the basic | |
280 | ones are not controlled directly by this variable. Instead, they are | |
281 | controlled by individual `flag_...' variables that are defaulted | |
282 | based on this variable. */ | |
283 | ||
284 | int optimize = 0; | |
285 | ||
286 | /* Number of error messages and warning messages so far. */ | |
287 | ||
288 | int errorcount = 0; | |
289 | int warningcount = 0; | |
290 | int sorrycount = 0; | |
291 | ||
ca695ac9 JB |
292 | /* Flag to output bytecode instead of native assembler */ |
293 | int output_bytecode = 0; | |
294 | ||
4291d9c8 RS |
295 | /* Pointer to function to compute the name to use to print a declaration. */ |
296 | ||
297 | char *(*decl_printable_name) (); | |
298 | ||
299 | /* Pointer to function to compute rtl for a language-specific tree code. */ | |
300 | ||
301 | struct rtx_def *(*lang_expand_expr) (); | |
302 | ||
2b599527 RS |
303 | /* Pointer to function to finish handling an incomplete decl at the |
304 | end of compilation. */ | |
305 | ||
306 | void (*incomplete_decl_finalize_hook) () = 0; | |
307 | ||
bf8b4985 RK |
308 | /* Highest label number used at the end of reload. */ |
309 | ||
310 | int max_label_num_after_reload; | |
311 | ||
4291d9c8 RS |
312 | /* Nonzero if generating code to do profiling. */ |
313 | ||
314 | int profile_flag = 0; | |
315 | ||
316 | /* Nonzero if generating code to do profiling on a line-by-line basis. */ | |
317 | ||
318 | int profile_block_flag; | |
319 | ||
320 | /* Nonzero for -pedantic switch: warn about anything | |
321 | that standard spec forbids. */ | |
322 | ||
323 | int pedantic = 0; | |
324 | ||
325 | /* Temporarily suppress certain warnings. | |
326 | This is set while reading code from a system header file. */ | |
327 | ||
328 | int in_system_header = 0; | |
329 | ||
330 | /* Nonzero means do stupid register allocation. | |
331 | Currently, this is 1 if `optimize' is 0. */ | |
332 | ||
333 | int obey_regdecls = 0; | |
334 | ||
335 | /* Don't print functions as they are compiled and don't print | |
336 | times taken by the various passes. -quiet. */ | |
337 | ||
338 | int quiet_flag = 0; | |
339 | \f | |
340 | /* -f flags. */ | |
341 | ||
342 | /* Nonzero means `char' should be signed. */ | |
343 | ||
344 | int flag_signed_char; | |
345 | ||
346 | /* Nonzero means give an enum type only as many bytes as it needs. */ | |
347 | ||
348 | int flag_short_enums; | |
349 | ||
350 | /* Nonzero for -fcaller-saves: allocate values in regs that need to | |
351 | be saved across function calls, if that produces overall better code. | |
352 | Optional now, so people can test it. */ | |
353 | ||
354 | #ifdef DEFAULT_CALLER_SAVES | |
355 | int flag_caller_saves = 1; | |
356 | #else | |
357 | int flag_caller_saves = 0; | |
358 | #endif | |
359 | ||
958ec8ca JW |
360 | /* Nonzero if structures and unions should be returned in memory. |
361 | ||
362 | This should only be defined if compatibility with another compiler or | |
363 | with an ABI is needed, because it results in slower code. */ | |
364 | ||
365 | #ifndef DEFAULT_PCC_STRUCT_RETURN | |
366 | #define DEFAULT_PCC_STRUCT_RETURN 1 | |
367 | #endif | |
368 | ||
4291d9c8 RS |
369 | /* Nonzero for -fpcc-struct-return: return values the same way PCC does. */ |
370 | ||
958ec8ca | 371 | int flag_pcc_struct_return = DEFAULT_PCC_STRUCT_RETURN; |
4291d9c8 RS |
372 | |
373 | /* Nonzero for -fforce-mem: load memory value into a register | |
374 | before arithmetic on it. This makes better cse but slower compilation. */ | |
375 | ||
376 | int flag_force_mem = 0; | |
377 | ||
378 | /* Nonzero for -fforce-addr: load memory address into a register before | |
379 | reference to memory. This makes better cse but slower compilation. */ | |
380 | ||
381 | int flag_force_addr = 0; | |
382 | ||
383 | /* Nonzero for -fdefer-pop: don't pop args after each function call; | |
384 | instead save them up to pop many calls' args with one insns. */ | |
385 | ||
6731a3e3 | 386 | int flag_defer_pop = 0; |
4291d9c8 RS |
387 | |
388 | /* Nonzero for -ffloat-store: don't allocate floats and doubles | |
389 | in extended-precision registers. */ | |
390 | ||
391 | int flag_float_store = 0; | |
392 | ||
393 | /* Nonzero for -fcse-follow-jumps: | |
394 | have cse follow jumps to do a more extensive job. */ | |
395 | ||
396 | int flag_cse_follow_jumps; | |
397 | ||
8b3686ed RK |
398 | /* Nonzero for -fcse-skip-blocks: |
399 | have cse follow a branch around a block. */ | |
400 | int flag_cse_skip_blocks; | |
401 | ||
4291d9c8 RS |
402 | /* Nonzero for -fexpensive-optimizations: |
403 | perform miscellaneous relatively-expensive optimizations. */ | |
404 | int flag_expensive_optimizations; | |
405 | ||
406 | /* Nonzero for -fthread-jumps: | |
407 | have jump optimize output of loop. */ | |
408 | ||
409 | int flag_thread_jumps; | |
410 | ||
411 | /* Nonzero enables strength-reduction in loop.c. */ | |
412 | ||
413 | int flag_strength_reduce = 0; | |
414 | ||
415 | /* Nonzero enables loop unrolling in unroll.c. Only loops for which the | |
416 | number of iterations can be calculated at compile-time (UNROLL_COMPLETELY, | |
417 | UNROLL_MODULO) or at run-time (preconditioned to be UNROLL_MODULO) are | |
418 | unrolled. */ | |
419 | ||
420 | int flag_unroll_loops; | |
421 | ||
422 | /* Nonzero enables loop unrolling in unroll.c. All loops are unrolled. | |
423 | This is generally not a win. */ | |
424 | ||
425 | int flag_unroll_all_loops; | |
426 | ||
427 | /* Nonzero for -fwritable-strings: | |
428 | store string constants in data segment and don't uniquize them. */ | |
429 | ||
430 | int flag_writable_strings = 0; | |
431 | ||
432 | /* Nonzero means don't put addresses of constant functions in registers. | |
433 | Used for compiling the Unix kernel, where strange substitutions are | |
434 | done on the assembly output. */ | |
435 | ||
436 | int flag_no_function_cse = 0; | |
437 | ||
438 | /* Nonzero for -fomit-frame-pointer: | |
439 | don't make a frame pointer in simple functions that don't require one. */ | |
440 | ||
441 | int flag_omit_frame_pointer = 0; | |
442 | ||
cf440348 JL |
443 | /* Nonzero means place each function into its own section on those platforms |
444 | which support arbitrary section names and unlimited numbers of sections. */ | |
445 | ||
446 | int flag_function_sections = 0; | |
447 | ||
4291d9c8 RS |
448 | /* Nonzero to inhibit use of define_optimization peephole opts. */ |
449 | ||
450 | int flag_no_peephole = 0; | |
451 | ||
43855b28 JL |
452 | /* Nonzero allows GCC to violate some IEEE or ANSI rules regarding math |
453 | operations in the interest of optimization. For example it allows | |
454 | GCC to assume arguments to sqrt are nonnegative numbers, allowing | |
0f41302f | 455 | faster code for sqrt to be generated. */ |
43855b28 JL |
456 | |
457 | int flag_fast_math = 0; | |
458 | ||
4291d9c8 RS |
459 | /* Nonzero means all references through pointers are volatile. */ |
460 | ||
461 | int flag_volatile; | |
c6e75897 RS |
462 | |
463 | /* Nonzero means treat all global and extern variables as global. */ | |
464 | ||
38d4d0c2 | 465 | int flag_volatile_global; |
4291d9c8 RS |
466 | |
467 | /* Nonzero means just do syntax checking; don't output anything. */ | |
468 | ||
469 | int flag_syntax_only = 0; | |
470 | ||
471 | /* Nonzero means to rerun cse after loop optimization. This increases | |
472 | compilation time about 20% and picks up a few more common expressions. */ | |
473 | ||
474 | static int flag_rerun_cse_after_loop; | |
475 | ||
476 | /* Nonzero for -finline-functions: ok to inline functions that look like | |
477 | good inline candidates. */ | |
478 | ||
479 | int flag_inline_functions; | |
480 | ||
481 | /* Nonzero for -fkeep-inline-functions: even if we make a function | |
ac2a9454 | 482 | go inline everywhere, keep its definition around for debugging |
4291d9c8 RS |
483 | purposes. */ |
484 | ||
485 | int flag_keep_inline_functions; | |
486 | ||
fadb3bc9 | 487 | /* Nonzero means that functions will not be inlined. */ |
4291d9c8 RS |
488 | |
489 | int flag_no_inline; | |
490 | ||
fbe912dd BK |
491 | /* Nonzero means that we should emit static const variables |
492 | regardless of whether or not optimization is turned on. */ | |
493 | ||
494 | int flag_keep_static_consts = 1; | |
495 | ||
4291d9c8 RS |
496 | /* Nonzero means we should be saving declaration info into a .X file. */ |
497 | ||
498 | int flag_gen_aux_info = 0; | |
499 | ||
f246a305 RS |
500 | /* Specified name of aux-info file. */ |
501 | ||
502 | static char *aux_info_file_name; | |
503 | ||
4291d9c8 RS |
504 | /* Nonzero means make the text shared if supported. */ |
505 | ||
506 | int flag_shared_data; | |
507 | ||
508 | /* Nonzero means schedule into delayed branch slots if supported. */ | |
509 | ||
510 | int flag_delayed_branch; | |
511 | ||
5dab5552 MS |
512 | /* Nonzero means to run cleanups after CALL_EXPRs. */ |
513 | ||
514 | int flag_short_temps; | |
515 | ||
4291d9c8 RS |
516 | /* Nonzero if we are compiling pure (sharable) code. |
517 | Value is 1 if we are doing reasonable (i.e. simple | |
518 | offset into offset table) pic. Value is 2 if we can | |
519 | only perform register offsets. */ | |
520 | ||
521 | int flag_pic; | |
522 | ||
3d195391 MS |
523 | /* Nonzero means generate extra code for exception handling and enable |
524 | exception handling. */ | |
525 | ||
526 | int flag_exceptions = 1; | |
527 | ||
2786cbad | 528 | /* Nonzero means don't place uninitialized global data in common storage |
3d195391 | 529 | by default. */ |
4291d9c8 RS |
530 | |
531 | int flag_no_common; | |
532 | ||
533 | /* Nonzero means pretend it is OK to examine bits of target floats, | |
534 | even if that isn't true. The resulting code will have incorrect constants, | |
535 | but the same series of instructions that the native compiler would make. */ | |
536 | ||
537 | int flag_pretend_float; | |
538 | ||
539 | /* Nonzero means change certain warnings into errors. | |
540 | Usually these are warnings about failure to conform to some standard. */ | |
541 | ||
542 | int flag_pedantic_errors = 0; | |
543 | ||
544 | /* flag_schedule_insns means schedule insns within basic blocks (before | |
545 | local_alloc). | |
546 | flag_schedule_insns_after_reload means schedule insns after | |
547 | global_alloc. */ | |
548 | ||
549 | int flag_schedule_insns = 0; | |
550 | int flag_schedule_insns_after_reload = 0; | |
551 | ||
552 | /* -finhibit-size-directive inhibits output of .size for ELF. | |
553 | This is used only for compiling crtstuff.c, | |
554 | and it may be extended to other effects | |
555 | needed for crtstuff.c on other systems. */ | |
556 | int flag_inhibit_size_directive = 0; | |
557 | ||
9a631e8e RS |
558 | /* -fverbose-asm causes extra commentary information to be produced in |
559 | the generated assembly code (to make it more readable). This option | |
560 | is generally only of use to those who actually need to read the | |
3d5cdd42 DE |
561 | generated assembly code (perhaps while debugging the compiler itself). |
562 | -fverbose-asm is the default. -fno-verbose-asm causes the extra information | |
563 | to be omitted and is useful when comparing two assembler files. */ | |
564 | ||
565 | int flag_verbose_asm = 1; | |
9a631e8e | 566 | |
3d5cdd42 DE |
567 | /* -dA causes debug commentary information to be produced in |
568 | the generated assembly code (to make it more readable). This option | |
569 | is generally only of use to those who actually need to read the | |
570 | generated assembly code (perhaps while debugging the compiler itself). | |
571 | Currently, this switch is only used by dwarfout.c; however, it is intended | |
572 | to be a catchall for printing debug information in the assembler file. */ | |
573 | ||
574 | int flag_debug_asm = 0; | |
9a631e8e | 575 | |
4291d9c8 | 576 | /* -fgnu-linker specifies use of the GNU linker for initializations. |
d68c507d RS |
577 | (Or, more generally, a linker that handles initializations.) |
578 | -fno-gnu-linker says that collect2 will be used. */ | |
579 | #ifdef USE_COLLECT2 | |
580 | int flag_gnu_linker = 0; | |
581 | #else | |
4291d9c8 | 582 | int flag_gnu_linker = 1; |
d68c507d | 583 | #endif |
4291d9c8 | 584 | |
566cdc73 MM |
585 | /* Tag all structures with __attribute__(packed) */ |
586 | int flag_pack_struct = 0; | |
587 | ||
4291d9c8 RS |
588 | /* Table of language-independent -f options. |
589 | STRING is the option name. VARIABLE is the address of the variable. | |
590 | ON_VALUE is the value to store in VARIABLE | |
591 | if `-fSTRING' is seen as an option. | |
592 | (If `-fno-STRING' is seen as an option, the opposite value is stored.) */ | |
593 | ||
594 | struct { char *string; int *variable; int on_value;} f_options[] = | |
595 | { | |
596 | {"float-store", &flag_float_store, 1}, | |
597 | {"volatile", &flag_volatile, 1}, | |
38d4d0c2 | 598 | {"volatile-global", &flag_volatile_global, 1}, |
4291d9c8 RS |
599 | {"defer-pop", &flag_defer_pop, 1}, |
600 | {"omit-frame-pointer", &flag_omit_frame_pointer, 1}, | |
601 | {"cse-follow-jumps", &flag_cse_follow_jumps, 1}, | |
8b3686ed | 602 | {"cse-skip-blocks", &flag_cse_skip_blocks, 1}, |
4291d9c8 RS |
603 | {"expensive-optimizations", &flag_expensive_optimizations, 1}, |
604 | {"thread-jumps", &flag_thread_jumps, 1}, | |
605 | {"strength-reduce", &flag_strength_reduce, 1}, | |
606 | {"unroll-loops", &flag_unroll_loops, 1}, | |
607 | {"unroll-all-loops", &flag_unroll_all_loops, 1}, | |
608 | {"writable-strings", &flag_writable_strings, 1}, | |
609 | {"peephole", &flag_no_peephole, 0}, | |
610 | {"force-mem", &flag_force_mem, 1}, | |
611 | {"force-addr", &flag_force_addr, 1}, | |
612 | {"function-cse", &flag_no_function_cse, 0}, | |
613 | {"inline-functions", &flag_inline_functions, 1}, | |
614 | {"keep-inline-functions", &flag_keep_inline_functions, 1}, | |
615 | {"inline", &flag_no_inline, 0}, | |
fbe912dd | 616 | {"keep-static-consts", &flag_keep_static_consts, 1}, |
4291d9c8 | 617 | {"syntax-only", &flag_syntax_only, 1}, |
4291d9c8 RS |
618 | {"shared-data", &flag_shared_data, 1}, |
619 | {"caller-saves", &flag_caller_saves, 1}, | |
620 | {"pcc-struct-return", &flag_pcc_struct_return, 1}, | |
958ec8ca | 621 | {"reg-struct-return", &flag_pcc_struct_return, 0}, |
4291d9c8 RS |
622 | {"delayed-branch", &flag_delayed_branch, 1}, |
623 | {"rerun-cse-after-loop", &flag_rerun_cse_after_loop, 1}, | |
624 | {"pretend-float", &flag_pretend_float, 1}, | |
625 | {"schedule-insns", &flag_schedule_insns, 1}, | |
626 | {"schedule-insns2", &flag_schedule_insns_after_reload, 1}, | |
627 | {"pic", &flag_pic, 1}, | |
628 | {"PIC", &flag_pic, 2}, | |
3d195391 | 629 | {"exceptions", &flag_exceptions, 1}, |
43855b28 | 630 | {"fast-math", &flag_fast_math, 1}, |
4291d9c8 RS |
631 | {"common", &flag_no_common, 0}, |
632 | {"inhibit-size-directive", &flag_inhibit_size_directive, 1}, | |
cf440348 | 633 | {"function-sections", &flag_function_sections, 1}, |
9a631e8e | 634 | {"verbose-asm", &flag_verbose_asm, 1}, |
422e2ed3 | 635 | {"gnu-linker", &flag_gnu_linker, 1}, |
566cdc73 | 636 | {"pack-struct", &flag_pack_struct, 1}, |
ca695ac9 | 637 | {"bytecode", &output_bytecode, 1} |
4291d9c8 | 638 | }; |
b99933c7 RS |
639 | |
640 | /* Table of language-specific options. */ | |
641 | ||
642 | char *lang_options[] = | |
643 | { | |
4200c8de | 644 | "-ansi", |
8305445b | 645 | "-fallow-single-precision", |
4200c8de | 646 | |
b99933c7 RS |
647 | "-fsigned-bitfields", |
648 | "-funsigned-bitfields", | |
649 | "-fno-signed-bitfields", | |
650 | "-fno-unsigned-bitfields", | |
4200c8de RK |
651 | "-fsigned-char", |
652 | "-funsigned-char", | |
653 | "-fno-signed-char", | |
654 | "-fno-unsigned-char", | |
655 | ||
656 | "-ftraditional", | |
657 | "-traditional", | |
658 | "-fnotraditional", | |
659 | "-fno-traditional", | |
660 | ||
b99933c7 RS |
661 | "-fasm", |
662 | "-fno-asm", | |
663 | "-fbuiltin", | |
664 | "-fno-builtin", | |
5ae3bec5 RK |
665 | "-fhosted", |
666 | "-fno-hosted", | |
667 | "-ffreestanding", | |
668 | "-fno-freestanding", | |
4200c8de RK |
669 | "-fcond-mismatch", |
670 | "-fno-cond-mismatch", | |
c7daad38 | 671 | "-fdollars-in-identifiers", |
57f0a224 | 672 | "-fno-dollars-in-identifiers", |
4200c8de RK |
673 | "-fident", |
674 | "-fno-ident", | |
675 | "-fshort-double", | |
676 | "-fno-short-double", | |
677 | "-fshort-enums", | |
678 | "-fno-short-enums", | |
679 | ||
680 | "-Wall", | |
289871f0 RK |
681 | "-Wbad-function-cast", |
682 | "-Wno-bad-function-cast", | |
b99933c7 RS |
683 | "-Wcast-qual", |
684 | "-Wno-cast-qual", | |
b99933c7 RS |
685 | "-Wchar-subscripts", |
686 | "-Wno-char-subscripts", | |
b99933c7 RS |
687 | "-Wcomment", |
688 | "-Wno-comment", | |
689 | "-Wcomments", | |
690 | "-Wno-comments", | |
4200c8de RK |
691 | "-Wconversion", |
692 | "-Wno-conversion", | |
693 | "-Wformat", | |
694 | "-Wno-format", | |
b99933c7 RS |
695 | "-Wimport", |
696 | "-Wno-import", | |
4200c8de RK |
697 | "-Wimplicit", |
698 | "-Wno-implicit", | |
5ae3bec5 RK |
699 | "-Wmain", |
700 | "-Wno-main", | |
f41372d4 RS |
701 | "-Wmissing-braces", |
702 | "-Wno-missing-braces", | |
4200c8de RK |
703 | "-Wmissing-declarations", |
704 | "-Wno-missing-declarations", | |
705 | "-Wmissing-prototypes", | |
706 | "-Wno-missing-prototypes", | |
707 | "-Wnested-externs", | |
708 | "-Wno-nested-externs", | |
709 | "-Wparentheses", | |
710 | "-Wno-parentheses", | |
711 | "-Wpointer-arith", | |
712 | "-Wno-pointer-arith", | |
713 | "-Wredundant-decls", | |
714 | "-Wno-redundant-decls", | |
d51f9363 JM |
715 | "-Wsign-compare", |
716 | "-Wno-sign-compare", | |
4200c8de RK |
717 | "-Wstrict-prototypes", |
718 | "-Wno-strict-prototypes", | |
719 | "-Wtraditional", | |
720 | "-Wno-traditional", | |
721 | "-Wtrigraphs", | |
722 | "-Wno-trigraphs", | |
723 | "-Wwrite-strings", | |
724 | "-Wno-write-strings", | |
b99933c7 | 725 | |
65faa6a4 RS |
726 | /* these are for obj c */ |
727 | "-lang-objc", | |
728 | "-gen-decls", | |
f5309ddf TW |
729 | "-fgnu-runtime", |
730 | "-fno-gnu-runtime", | |
731 | "-fnext-runtime", | |
732 | "-fno-next-runtime", | |
65faa6a4 RS |
733 | "-Wselector", |
734 | "-Wno-selector", | |
b800a01b KKT |
735 | "-Wprotocol", |
736 | "-Wno-protocol", | |
a457294f | 737 | |
2a95de17 | 738 | #include "options.h" |
b99933c7 RS |
739 | 0 |
740 | }; | |
4291d9c8 RS |
741 | \f |
742 | /* Options controlling warnings */ | |
743 | ||
744 | /* Don't print warning messages. -w. */ | |
745 | ||
746 | int inhibit_warnings = 0; | |
747 | ||
748 | /* Print various extra warnings. -W. */ | |
749 | ||
750 | int extra_warnings = 0; | |
751 | ||
752 | /* Treat warnings as errors. -Werror. */ | |
753 | ||
754 | int warnings_are_errors = 0; | |
755 | ||
756 | /* Nonzero to warn about unused local variables. */ | |
757 | ||
758 | int warn_unused; | |
759 | ||
760 | /* Nonzero to warn about variables used before they are initialized. */ | |
761 | ||
762 | int warn_uninitialized; | |
763 | ||
764 | /* Nonzero means warn about all declarations which shadow others. */ | |
765 | ||
766 | int warn_shadow; | |
767 | ||
768 | /* Warn if a switch on an enum fails to have a case for every enum value. */ | |
769 | ||
770 | int warn_switch; | |
771 | ||
772 | /* Nonzero means warn about function definitions that default the return type | |
773 | or that use a null return and have a return-type other than void. */ | |
774 | ||
775 | int warn_return_type; | |
776 | ||
777 | /* Nonzero means warn about pointer casts that increase the required | |
778 | alignment of the target type (and might therefore lead to a crash | |
779 | due to a misaligned access). */ | |
780 | ||
781 | int warn_cast_align; | |
782 | ||
783 | /* Nonzero means warn about any identifiers that match in the first N | |
784 | characters. The value N is in `id_clash_len'. */ | |
785 | ||
786 | int warn_id_clash; | |
b51e9c62 RK |
787 | unsigned id_clash_len; |
788 | ||
789 | /* Nonzero means warn about any objects definitions whose size is larger | |
790 | than N bytes. Also want about function definitions whose returned | |
791 | values are larger than N bytes. The value N is in `larger_than_size'. */ | |
792 | ||
793 | int warn_larger_than; | |
794 | unsigned larger_than_size; | |
4291d9c8 RS |
795 | |
796 | /* Nonzero means warn if inline function is too large. */ | |
797 | ||
798 | int warn_inline; | |
799 | ||
800 | /* Warn if a function returns an aggregate, | |
801 | since there are often incompatible calling conventions for doing this. */ | |
802 | ||
803 | int warn_aggregate_return; | |
804 | ||
805 | /* Likewise for -W. */ | |
806 | ||
807 | struct { char *string; int *variable; int on_value;} W_options[] = | |
808 | { | |
809 | {"unused", &warn_unused, 1}, | |
810 | {"error", &warnings_are_errors, 1}, | |
811 | {"shadow", &warn_shadow, 1}, | |
812 | {"switch", &warn_switch, 1}, | |
4291d9c8 RS |
813 | {"aggregate-return", &warn_aggregate_return, 1}, |
814 | {"cast-align", &warn_cast_align, 1}, | |
f246a305 RS |
815 | {"uninitialized", &warn_uninitialized, 1}, |
816 | {"inline", &warn_inline, 1} | |
4291d9c8 RS |
817 | }; |
818 | \f | |
819 | /* Output files for assembler code (real compiler output) | |
820 | and debugging dumps. */ | |
821 | ||
822 | FILE *asm_out_file; | |
823 | FILE *aux_info_file; | |
824 | FILE *rtl_dump_file; | |
825 | FILE *jump_opt_dump_file; | |
826 | FILE *cse_dump_file; | |
827 | FILE *loop_dump_file; | |
828 | FILE *cse2_dump_file; | |
829 | FILE *flow_dump_file; | |
830 | FILE *combine_dump_file; | |
831 | FILE *sched_dump_file; | |
832 | FILE *local_reg_dump_file; | |
833 | FILE *global_reg_dump_file; | |
834 | FILE *sched2_dump_file; | |
835 | FILE *jump2_opt_dump_file; | |
836 | FILE *dbr_sched_dump_file; | |
837 | FILE *stack_reg_dump_file; | |
838 | ||
839 | /* Time accumulators, to count the total time spent in various passes. */ | |
840 | ||
841 | int parse_time; | |
842 | int varconst_time; | |
843 | int integration_time; | |
844 | int jump_time; | |
845 | int cse_time; | |
846 | int loop_time; | |
847 | int cse2_time; | |
848 | int flow_time; | |
849 | int combine_time; | |
850 | int sched_time; | |
851 | int local_alloc_time; | |
852 | int global_alloc_time; | |
853 | int sched2_time; | |
854 | int dbr_sched_time; | |
855 | int shorten_branch_time; | |
856 | int stack_reg_time; | |
857 | int final_time; | |
858 | int symout_time; | |
859 | int dump_time; | |
860 | \f | |
861 | /* Return time used so far, in microseconds. */ | |
862 | ||
863 | int | |
864 | get_run_time () | |
865 | { | |
9580b583 | 866 | #ifndef _WIN32 |
4291d9c8 RS |
867 | #ifdef USG |
868 | struct tms tms; | |
869 | #else | |
870 | #ifndef VMS | |
871 | struct rusage rusage; | |
15f00097 | 872 | #else |
4291d9c8 RS |
873 | struct |
874 | { | |
875 | int proc_user_time; | |
876 | int proc_system_time; | |
877 | int child_user_time; | |
878 | int child_system_time; | |
879 | } vms_times; | |
880 | #endif | |
15f00097 | 881 | #endif |
4291d9c8 RS |
882 | #endif |
883 | ||
884 | if (quiet_flag) | |
885 | return 0; | |
9580b583 | 886 | #ifdef _WIN32 |
15f00097 RK |
887 | if (clock() < 0) |
888 | return 0; | |
889 | else | |
890 | return (clock() * 1000); | |
9580b583 | 891 | #else /* not _WIN32 */ |
4291d9c8 RS |
892 | #ifdef USG |
893 | times (&tms); | |
894 | return (tms.tms_utime + tms.tms_stime) * (1000000 / HZ); | |
895 | #else | |
896 | #ifndef VMS | |
897 | getrusage (0, &rusage); | |
898 | return (rusage.ru_utime.tv_sec * 1000000 + rusage.ru_utime.tv_usec | |
899 | + rusage.ru_stime.tv_sec * 1000000 + rusage.ru_stime.tv_usec); | |
900 | #else /* VMS */ | |
901 | times (&vms_times); | |
902 | return (vms_times.proc_user_time + vms_times.proc_system_time) * 10000; | |
903 | #endif | |
904 | #endif | |
eb910b5a | 905 | #endif |
4291d9c8 RS |
906 | } |
907 | ||
908 | #define TIMEVAR(VAR, BODY) \ | |
909 | do { int otime = get_run_time (); BODY; VAR += get_run_time () - otime; } while (0) | |
910 | ||
911 | void | |
912 | print_time (str, total) | |
913 | char *str; | |
914 | int total; | |
915 | { | |
916 | fprintf (stderr, | |
917 | "time in %s: %d.%06d\n", | |
918 | str, total / 1000000, total % 1000000); | |
919 | } | |
920 | ||
921 | /* Count an error or warning. Return 1 if the message should be printed. */ | |
922 | ||
923 | int | |
924 | count_error (warningp) | |
925 | int warningp; | |
926 | { | |
927 | if (warningp && inhibit_warnings) | |
928 | return 0; | |
929 | ||
930 | if (warningp && !warnings_are_errors) | |
931 | warningcount++; | |
932 | else | |
933 | { | |
934 | static int warning_message = 0; | |
935 | ||
936 | if (warningp && !warning_message) | |
937 | { | |
938 | fprintf (stderr, "%s: warnings being treated as errors\n", progname); | |
939 | warning_message = 1; | |
940 | } | |
941 | errorcount++; | |
942 | } | |
943 | ||
944 | return 1; | |
945 | } | |
946 | ||
947 | /* Print a fatal error message. NAME is the text. | |
948 | Also include a system error message based on `errno'. */ | |
949 | ||
950 | void | |
951 | pfatal_with_name (name) | |
952 | char *name; | |
953 | { | |
954 | fprintf (stderr, "%s: ", progname); | |
955 | perror (name); | |
299846f2 | 956 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
957 | } |
958 | ||
959 | void | |
960 | fatal_io_error (name) | |
961 | char *name; | |
962 | { | |
963 | fprintf (stderr, "%s: %s: I/O error\n", progname, name); | |
299846f2 | 964 | exit (FATAL_EXIT_CODE); |
4291d9c8 RS |
965 | } |
966 | ||
a89b2cc4 MM |
967 | /* Called to give a better error message for a bad insn rather than |
968 | just calling abort(). */ | |
4291d9c8 RS |
969 | |
970 | void | |
a89b2cc4 MM |
971 | fatal_insn (message, insn) |
972 | char *message; | |
4291d9c8 RS |
973 | rtx insn; |
974 | { | |
ca695ac9 JB |
975 | if (!output_bytecode) |
976 | { | |
a89b2cc4 | 977 | error (message); |
ca695ac9 JB |
978 | debug_rtx (insn); |
979 | } | |
4291d9c8 RS |
980 | if (asm_out_file) |
981 | fflush (asm_out_file); | |
982 | if (aux_info_file) | |
983 | fflush (aux_info_file); | |
984 | if (rtl_dump_file) | |
985 | fflush (rtl_dump_file); | |
986 | if (jump_opt_dump_file) | |
987 | fflush (jump_opt_dump_file); | |
988 | if (cse_dump_file) | |
989 | fflush (cse_dump_file); | |
990 | if (loop_dump_file) | |
991 | fflush (loop_dump_file); | |
992 | if (cse2_dump_file) | |
993 | fflush (cse2_dump_file); | |
994 | if (flow_dump_file) | |
995 | fflush (flow_dump_file); | |
996 | if (combine_dump_file) | |
997 | fflush (combine_dump_file); | |
998 | if (sched_dump_file) | |
999 | fflush (sched_dump_file); | |
1000 | if (local_reg_dump_file) | |
1001 | fflush (local_reg_dump_file); | |
1002 | if (global_reg_dump_file) | |
1003 | fflush (global_reg_dump_file); | |
1004 | if (sched2_dump_file) | |
1005 | fflush (sched2_dump_file); | |
1006 | if (jump2_opt_dump_file) | |
1007 | fflush (jump2_opt_dump_file); | |
1008 | if (dbr_sched_dump_file) | |
1009 | fflush (dbr_sched_dump_file); | |
1010 | if (stack_reg_dump_file) | |
1011 | fflush (stack_reg_dump_file); | |
1902f7fd MM |
1012 | fflush (stdout); |
1013 | fflush (stderr); | |
4291d9c8 RS |
1014 | abort (); |
1015 | } | |
1016 | ||
a89b2cc4 MM |
1017 | /* Called to give a better error message when we don't have an insn to match |
1018 | what we are looking for or if the insn's constraints aren't satisfied, | |
1019 | rather than just calling abort(). */ | |
1020 | ||
1021 | void | |
1022 | fatal_insn_not_found (insn) | |
1023 | rtx insn; | |
1024 | { | |
1025 | if (INSN_CODE (insn) < 0) | |
1026 | fatal_insn ("internal error--unrecognizable insn:", insn); | |
1027 | else | |
1028 | fatal_insn ("internal error--insn does not satisfy its constraints:", insn); | |
1029 | } | |
1030 | ||
4291d9c8 RS |
1031 | /* This is the default decl_printable_name function. */ |
1032 | ||
1033 | static char * | |
1034 | decl_name (decl, kind) | |
1035 | tree decl; | |
1036 | char **kind; | |
1037 | { | |
1038 | return IDENTIFIER_POINTER (DECL_NAME (decl)); | |
1039 | } | |
1040 | \f | |
1041 | static int need_error_newline; | |
1042 | ||
1043 | /* Function of last error message; | |
1044 | more generally, function such that if next error message is in it | |
1045 | then we don't have to mention the function name. */ | |
1046 | static tree last_error_function = NULL; | |
1047 | ||
1048 | /* Used to detect when input_file_stack has changed since last described. */ | |
1049 | static int last_error_tick; | |
1050 | ||
1051 | /* Called when the start of a function definition is parsed, | |
1052 | this function prints on stderr the name of the function. */ | |
1053 | ||
1054 | void | |
1055 | announce_function (decl) | |
1056 | tree decl; | |
1057 | { | |
1058 | if (! quiet_flag) | |
1059 | { | |
1060 | char *junk; | |
1061 | if (rtl_dump_and_exit) | |
1062 | fprintf (stderr, "%s ", IDENTIFIER_POINTER (DECL_NAME (decl))); | |
1063 | else | |
1064 | fprintf (stderr, " %s", (*decl_printable_name) (decl, &junk)); | |
1065 | fflush (stderr); | |
1066 | need_error_newline = 1; | |
1067 | last_error_function = current_function_decl; | |
1068 | } | |
1069 | } | |
1070 | ||
b64e9948 PB |
1071 | /* The default function to print out name of current function that caused |
1072 | an error. */ | |
4291d9c8 RS |
1073 | |
1074 | void | |
b64e9948 | 1075 | default_print_error_function (file) |
4291d9c8 RS |
1076 | char *file; |
1077 | { | |
4291d9c8 RS |
1078 | if (last_error_function != current_function_decl) |
1079 | { | |
1080 | char *kind = "function"; | |
1081 | if (current_function_decl != 0 | |
1082 | && TREE_CODE (TREE_TYPE (current_function_decl)) == METHOD_TYPE) | |
1083 | kind = "method"; | |
1084 | ||
1085 | if (file) | |
1086 | fprintf (stderr, "%s: ", file); | |
1087 | ||
1088 | if (current_function_decl == NULL) | |
1089 | fprintf (stderr, "At top level:\n"); | |
1090 | else | |
1091 | { | |
1092 | char *name = (*decl_printable_name) (current_function_decl, &kind); | |
1093 | fprintf (stderr, "In %s `%s':\n", kind, name); | |
1094 | } | |
1095 | ||
1096 | last_error_function = current_function_decl; | |
1097 | } | |
b64e9948 PB |
1098 | } |
1099 | ||
1100 | /* Called by report_error_function to print out function name. | |
0f41302f | 1101 | * Default may be overridden by language front-ends. */ |
b64e9948 | 1102 | |
0f41302f | 1103 | void (*print_error_function) PROTO((char *)) = default_print_error_function; |
b64e9948 PB |
1104 | |
1105 | /* Prints out, if necessary, the name of the current function | |
1106 | that caused an error. Called from all error and warning functions. */ | |
1107 | ||
1108 | void | |
1109 | report_error_function (file) | |
1110 | char *file; | |
1111 | { | |
1112 | struct file_stack *p; | |
1113 | ||
1114 | if (need_error_newline) | |
1115 | { | |
1116 | fprintf (stderr, "\n"); | |
1117 | need_error_newline = 0; | |
1118 | } | |
1119 | ||
1120 | (*print_error_function) (file); | |
1121 | ||
4291d9c8 | 1122 | if (input_file_stack && input_file_stack->next != 0 |
2efc92ed RK |
1123 | && input_file_stack_tick != last_error_tick |
1124 | && file == input_filename) | |
4291d9c8 RS |
1125 | { |
1126 | fprintf (stderr, "In file included"); | |
1127 | for (p = input_file_stack->next; p; p = p->next) | |
1128 | { | |
1129 | fprintf (stderr, " from %s:%d", p->name, p->line); | |
1130 | if (p->next) | |
e5301904 | 1131 | fprintf (stderr, ",\n "); |
4291d9c8 RS |
1132 | } |
1133 | fprintf (stderr, ":\n"); | |
1134 | last_error_tick = input_file_stack_tick; | |
1135 | } | |
1136 | } | |
eb711c86 RK |
1137 | \f |
1138 | /* Print a message. */ | |
4291d9c8 | 1139 | |
eb711c86 RK |
1140 | static void |
1141 | vmessage (prefix, s, ap) | |
1142 | char *prefix; | |
4291d9c8 | 1143 | char *s; |
eb711c86 | 1144 | va_list ap; |
4291d9c8 | 1145 | { |
eb711c86 RK |
1146 | if (prefix) |
1147 | fprintf (stderr, "%s: ", prefix); | |
1148 | ||
1149 | #ifdef HAVE_VPRINTF | |
1150 | vfprintf (stderr, s, ap); | |
1151 | #else | |
1152 | { | |
1153 | HOST_WIDE_INT v1 = va_arg(ap, HOST_WIDE_INT); | |
1154 | HOST_WIDE_INT v2 = va_arg(ap, HOST_WIDE_INT); | |
1155 | HOST_WIDE_INT v3 = va_arg(ap, HOST_WIDE_INT); | |
a4326b4d RK |
1156 | HOST_WIDE_INT v4 = va_arg(ap, HOST_WIDE_INT); |
1157 | fprintf (stderr, s, v1, v2, v3, v4); | |
eb711c86 RK |
1158 | } |
1159 | #endif | |
4291d9c8 RS |
1160 | } |
1161 | ||
eb711c86 | 1162 | /* Print a message relevant to line LINE of file FILE. */ |
4291d9c8 | 1163 | |
eb711c86 RK |
1164 | static void |
1165 | v_message_with_file_and_line (file, line, prefix, s, ap) | |
4291d9c8 RS |
1166 | char *file; |
1167 | int line; | |
eb711c86 | 1168 | char *prefix; |
4291d9c8 | 1169 | char *s; |
eb711c86 | 1170 | va_list ap; |
4291d9c8 | 1171 | { |
4291d9c8 RS |
1172 | if (file) |
1173 | fprintf (stderr, "%s:%d: ", file, line); | |
1174 | else | |
1175 | fprintf (stderr, "%s: ", progname); | |
d78c6ad5 | 1176 | |
eb711c86 RK |
1177 | vmessage (prefix, s, ap); |
1178 | fputc ('\n', stderr); | |
4291d9c8 RS |
1179 | } |
1180 | ||
eb711c86 | 1181 | /* Print a message relevant to the given DECL. */ |
4291d9c8 | 1182 | |
eb711c86 RK |
1183 | static void |
1184 | v_message_with_decl (decl, prefix, s, ap) | |
4291d9c8 | 1185 | tree decl; |
eb711c86 | 1186 | char *prefix; |
4291d9c8 | 1187 | char *s; |
eb711c86 | 1188 | va_list ap; |
4291d9c8 | 1189 | { |
eb711c86 | 1190 | char *n, *p, *junk; |
4291d9c8 RS |
1191 | |
1192 | fprintf (stderr, "%s:%d: ", | |
1193 | DECL_SOURCE_FILE (decl), DECL_SOURCE_LINE (decl)); | |
1194 | ||
eb711c86 RK |
1195 | if (prefix) |
1196 | fprintf (stderr, "%s: ", prefix); | |
1197 | ||
1198 | /* Do magic to get around lack of varargs support for insertion | |
1199 | of arguments into existing list. We know that the decl is first; | |
1200 | we ass_u_me that it will be printed with "%s". */ | |
1201 | ||
1202 | for (p = s; *p; ++p) | |
1203 | { | |
1204 | if (*p == '%') | |
1205 | { | |
1206 | if (*(p + 1) == '%') | |
1207 | ++p; | |
1208 | else | |
1209 | break; | |
1210 | } | |
1211 | } | |
1212 | ||
cb039f8a RK |
1213 | if (p > s) /* Print the left-hand substring. */ |
1214 | { | |
1215 | char fmt[sizeof "%.255s"]; | |
1216 | long width = p - s; | |
1217 | ||
1218 | if (width > 255L) width = 255L; /* arbitrary */ | |
1219 | sprintf (fmt, "%%.%lds", width); | |
1220 | fprintf (stderr, fmt, s); | |
1221 | } | |
eb711c86 | 1222 | |
cb039f8a | 1223 | if (*p == '%') /* Print the name. */ |
eb711c86 RK |
1224 | { |
1225 | char *n = (DECL_NAME (decl) | |
1226 | ? (*decl_printable_name) (decl, &junk) | |
1227 | : "((anonymous))"); | |
1228 | fputs (n, stderr); | |
1229 | while (*p) | |
1230 | { | |
1231 | ++p; | |
1232 | if (isalpha (*(p - 1) & 0xFF)) | |
1233 | break; | |
1234 | } | |
1235 | } | |
1236 | ||
cb039f8a | 1237 | if (*p) /* Print the rest of the message. */ |
eb711c86 RK |
1238 | vmessage ((char *)NULL, p, ap); |
1239 | ||
1240 | fputc ('\n', stderr); | |
4291d9c8 RS |
1241 | } |
1242 | ||
eb711c86 | 1243 | /* Figure file and line of the given INSN. */ |
4291d9c8 | 1244 | |
eb711c86 RK |
1245 | static void |
1246 | file_and_line_for_asm (insn, pfile, pline) | |
4291d9c8 | 1247 | rtx insn; |
eb711c86 RK |
1248 | char **pfile; |
1249 | int *pline; | |
4291d9c8 | 1250 | { |
4291d9c8 RS |
1251 | rtx body = PATTERN (insn); |
1252 | rtx asmop; | |
1253 | ||
1254 | /* Find the (or one of the) ASM_OPERANDS in the insn. */ | |
1255 | if (GET_CODE (body) == SET && GET_CODE (SET_SRC (body)) == ASM_OPERANDS) | |
1256 | asmop = SET_SRC (body); | |
1257 | else if (GET_CODE (body) == ASM_OPERANDS) | |
1258 | asmop = body; | |
1259 | else if (GET_CODE (body) == PARALLEL | |
1260 | && GET_CODE (XVECEXP (body, 0, 0)) == SET) | |
1261 | asmop = SET_SRC (XVECEXP (body, 0, 0)); | |
1262 | else if (GET_CODE (body) == PARALLEL | |
1263 | && GET_CODE (XVECEXP (body, 0, 0)) == ASM_OPERANDS) | |
1264 | asmop = XVECEXP (body, 0, 0); | |
eb711c86 RK |
1265 | else |
1266 | asmop = NULL; | |
1267 | ||
1268 | if (asmop) | |
1269 | { | |
1270 | *pfile = ASM_OPERANDS_SOURCE_FILE (asmop); | |
1271 | *pline = ASM_OPERANDS_SOURCE_LINE (asmop); | |
1272 | } | |
1273 | else | |
1274 | { | |
1275 | *pfile = input_filename; | |
1276 | *pline = lineno; | |
1277 | } | |
1278 | } | |
4291d9c8 | 1279 | |
eb711c86 | 1280 | /* Report an error at line LINE of file FILE. */ |
4291d9c8 | 1281 | |
eb711c86 RK |
1282 | static void |
1283 | v_error_with_file_and_line (file, line, s, ap) | |
1284 | char *file; | |
1285 | int line; | |
1286 | char *s; | |
1287 | va_list ap; | |
1288 | { | |
1289 | count_error (0); | |
1290 | report_error_function (file); | |
1291 | v_message_with_file_and_line (file, line, (char *)NULL, s, ap); | |
d78c6ad5 RK |
1292 | } |
1293 | ||
1294 | void | |
e0e2a8da | 1295 | error_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
d78c6ad5 | 1296 | { |
e0e2a8da | 1297 | #ifndef __STDC__ |
eb711c86 RK |
1298 | char *file; |
1299 | int line; | |
1300 | char *s; | |
e0e2a8da RK |
1301 | #endif |
1302 | va_list ap; | |
1303 | ||
1304 | VA_START (ap, s); | |
eb711c86 | 1305 | |
e0e2a8da | 1306 | #ifndef __STDC__ |
eb711c86 RK |
1307 | file = va_arg (ap, char *); |
1308 | line = va_arg (ap, int); | |
1309 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1310 | #endif |
1311 | ||
eb711c86 RK |
1312 | v_error_with_file_and_line (file, line, s, ap); |
1313 | va_end (ap); | |
4291d9c8 RS |
1314 | } |
1315 | ||
eb711c86 RK |
1316 | /* Report an error at the declaration DECL. |
1317 | S is a format string which uses %s to substitute the declaration | |
1318 | name; subsequent substitutions are a la printf. */ | |
1319 | ||
1320 | static void | |
1321 | v_error_with_decl (decl, s, ap) | |
1322 | tree decl; | |
1323 | char *s; | |
1324 | va_list ap; | |
1325 | { | |
1326 | count_error (0); | |
1327 | report_error_function (DECL_SOURCE_FILE (decl)); | |
1328 | v_message_with_decl (decl, (char *)NULL, s, ap); | |
1329 | } | |
4291d9c8 RS |
1330 | |
1331 | void | |
e0e2a8da | 1332 | error_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1333 | { |
e0e2a8da | 1334 | #ifndef __STDC__ |
eb711c86 RK |
1335 | tree decl; |
1336 | char *s; | |
e0e2a8da RK |
1337 | #endif |
1338 | va_list ap; | |
eb711c86 | 1339 | |
e0e2a8da RK |
1340 | VA_START (ap, s); |
1341 | ||
1342 | #ifndef __STDC__ | |
eb711c86 RK |
1343 | decl = va_arg (ap, tree); |
1344 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1345 | #endif |
1346 | ||
eb711c86 RK |
1347 | v_error_with_decl (decl, s, ap); |
1348 | va_end (ap); | |
1349 | } | |
1350 | ||
1351 | /* Report an error at the line number of the insn INSN. | |
1352 | This is used only when INSN is an `asm' with operands, | |
1353 | and each ASM_OPERANDS records its own source file and line. */ | |
1354 | ||
1355 | static void | |
1356 | v_error_for_asm (insn, s, ap) | |
1357 | rtx insn; | |
4291d9c8 | 1358 | char *s; |
eb711c86 | 1359 | va_list ap; |
4291d9c8 | 1360 | { |
eb711c86 RK |
1361 | char *file; |
1362 | int line; | |
4291d9c8 | 1363 | |
eb711c86 RK |
1364 | count_error (0); |
1365 | file_and_line_for_asm (insn, &file, &line); | |
4291d9c8 | 1366 | report_error_function (file); |
eb711c86 RK |
1367 | v_message_with_file_and_line (file, line, (char *)NULL, s, ap); |
1368 | } | |
4291d9c8 | 1369 | |
eb711c86 | 1370 | void |
e0e2a8da | 1371 | error_for_asm VPROTO((rtx insn, char *s, ...)) |
eb711c86 | 1372 | { |
e0e2a8da | 1373 | #ifndef __STDC__ |
eb711c86 RK |
1374 | rtx insn; |
1375 | char *s; | |
e0e2a8da RK |
1376 | #endif |
1377 | va_list ap; | |
eb711c86 | 1378 | |
e0e2a8da RK |
1379 | VA_START (ap, s); |
1380 | ||
1381 | #ifndef __STDC__ | |
eb711c86 RK |
1382 | insn = va_arg (ap, rtx); |
1383 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1384 | #endif |
1385 | ||
eb711c86 RK |
1386 | v_error_for_asm (insn, s, ap); |
1387 | va_end (ap); | |
4291d9c8 RS |
1388 | } |
1389 | ||
eb711c86 | 1390 | /* Report an error at the current line number. */ |
4291d9c8 | 1391 | |
eb711c86 RK |
1392 | static void |
1393 | verror (s, ap) | |
4291d9c8 | 1394 | char *s; |
eb711c86 | 1395 | va_list ap; |
4291d9c8 | 1396 | { |
eb711c86 | 1397 | v_error_with_file_and_line (input_filename, lineno, s, ap); |
4291d9c8 RS |
1398 | } |
1399 | ||
eb711c86 | 1400 | void |
e0e2a8da | 1401 | error VPROTO((char *s, ...)) |
eb711c86 | 1402 | { |
e0e2a8da | 1403 | #ifndef __STDC__ |
eb711c86 | 1404 | char *s; |
e0e2a8da RK |
1405 | #endif |
1406 | va_list ap; | |
1407 | ||
1408 | VA_START (ap, s); | |
eb711c86 | 1409 | |
e0e2a8da | 1410 | #ifndef __STDC__ |
eb711c86 | 1411 | s = va_arg (ap, char *); |
e0e2a8da RK |
1412 | #endif |
1413 | ||
eb711c86 RK |
1414 | verror (s, ap); |
1415 | va_end (ap); | |
1416 | } | |
1417 | ||
1418 | /* Report a fatal error at the current line number. */ | |
1419 | ||
1420 | static void | |
1421 | vfatal (s, ap) | |
1422 | char *s; | |
1423 | va_list ap; | |
1424 | { | |
1425 | verror (s, ap); | |
299846f2 | 1426 | exit (FATAL_EXIT_CODE); |
eb711c86 | 1427 | } |
4291d9c8 RS |
1428 | |
1429 | void | |
e0e2a8da | 1430 | fatal VPROTO((char *s, ...)) |
eb711c86 | 1431 | { |
e0e2a8da | 1432 | #ifndef __STDC__ |
eb711c86 | 1433 | char *s; |
e0e2a8da RK |
1434 | #endif |
1435 | va_list ap; | |
1436 | ||
1437 | VA_START (ap, s); | |
eb711c86 | 1438 | |
e0e2a8da | 1439 | #ifndef __STDC__ |
eb711c86 | 1440 | s = va_arg (ap, char *); |
e0e2a8da RK |
1441 | #endif |
1442 | ||
eb711c86 RK |
1443 | vfatal (s, ap); |
1444 | va_end (ap); | |
1445 | } | |
1446 | ||
1447 | /* Report a warning at line LINE of file FILE. */ | |
1448 | ||
1449 | static void | |
1450 | v_warning_with_file_and_line (file, line, s, ap) | |
1451 | char *file; | |
1452 | int line; | |
4291d9c8 | 1453 | char *s; |
eb711c86 | 1454 | va_list ap; |
4291d9c8 | 1455 | { |
eb711c86 RK |
1456 | if (count_error (1)) |
1457 | { | |
1458 | report_error_function (file); | |
1459 | v_message_with_file_and_line (file, line, "warning", s, ap); | |
1460 | } | |
1461 | } | |
4291d9c8 | 1462 | |
eb711c86 | 1463 | void |
e0e2a8da | 1464 | warning_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
eb711c86 | 1465 | { |
e0e2a8da | 1466 | #ifndef __STDC__ |
eb711c86 RK |
1467 | char *file; |
1468 | int line; | |
1469 | char *s; | |
e0e2a8da RK |
1470 | #endif |
1471 | va_list ap; | |
1472 | ||
1473 | VA_START (ap, s); | |
eb711c86 | 1474 | |
e0e2a8da | 1475 | #ifndef __STDC__ |
eb711c86 RK |
1476 | file = va_arg (ap, char *); |
1477 | line = va_arg (ap, int); | |
1478 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1479 | #endif |
1480 | ||
eb711c86 RK |
1481 | v_warning_with_file_and_line (file, line, s, ap); |
1482 | va_end (ap); | |
1483 | } | |
4291d9c8 | 1484 | |
eb711c86 RK |
1485 | /* Report a warning at the declaration DECL. |
1486 | S is a format string which uses %s to substitute the declaration | |
1487 | name; subsequent substitutions are a la printf. */ | |
4291d9c8 | 1488 | |
eb711c86 RK |
1489 | static void |
1490 | v_warning_with_decl (decl, s, ap) | |
1491 | tree decl; | |
1492 | char *s; | |
1493 | va_list ap; | |
1494 | { | |
1495 | if (count_error (1)) | |
1496 | { | |
1497 | report_error_function (DECL_SOURCE_FILE (decl)); | |
1498 | v_message_with_decl (decl, "warning", s, ap); | |
1499 | } | |
1500 | } | |
4291d9c8 | 1501 | |
eb711c86 | 1502 | void |
e0e2a8da | 1503 | warning_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1504 | { |
e0e2a8da | 1505 | #ifndef __STDC__ |
eb711c86 RK |
1506 | tree decl; |
1507 | char *s; | |
e0e2a8da RK |
1508 | #endif |
1509 | va_list ap; | |
eb711c86 | 1510 | |
e0e2a8da RK |
1511 | VA_START (ap, s); |
1512 | ||
1513 | #ifndef __STDC__ | |
eb711c86 RK |
1514 | decl = va_arg (ap, tree); |
1515 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1516 | #endif |
1517 | ||
eb711c86 RK |
1518 | v_warning_with_decl (decl, s, ap); |
1519 | va_end (ap); | |
4291d9c8 RS |
1520 | } |
1521 | ||
1522 | /* Report a warning at the line number of the insn INSN. | |
4291d9c8 RS |
1523 | This is used only when INSN is an `asm' with operands, |
1524 | and each ASM_OPERANDS records its own source file and line. */ | |
1525 | ||
eb711c86 RK |
1526 | static void |
1527 | v_warning_for_asm (insn, s, ap) | |
4291d9c8 RS |
1528 | rtx insn; |
1529 | char *s; | |
eb711c86 | 1530 | va_list ap; |
4291d9c8 | 1531 | { |
eb711c86 RK |
1532 | if (count_error (1)) |
1533 | { | |
1534 | char *file; | |
1535 | int line; | |
4291d9c8 | 1536 | |
eb711c86 RK |
1537 | file_and_line_for_asm (insn, &file, &line); |
1538 | report_error_function (file); | |
1539 | v_message_with_file_and_line (file, line, "warning", s, ap); | |
1540 | } | |
1541 | } | |
4291d9c8 | 1542 | |
eb711c86 | 1543 | void |
e0e2a8da | 1544 | warning_for_asm VPROTO((rtx insn, char *s, ...)) |
eb711c86 | 1545 | { |
e0e2a8da | 1546 | #ifndef __STDC__ |
eb711c86 RK |
1547 | rtx insn; |
1548 | char *s; | |
e0e2a8da RK |
1549 | #endif |
1550 | va_list ap; | |
1551 | ||
1552 | VA_START (ap, s); | |
eb711c86 | 1553 | |
e0e2a8da | 1554 | #ifndef __STDC__ |
eb711c86 RK |
1555 | insn = va_arg (ap, rtx); |
1556 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1557 | #endif |
1558 | ||
eb711c86 RK |
1559 | v_warning_for_asm (insn, s, ap); |
1560 | va_end (ap); | |
1561 | } | |
4291d9c8 | 1562 | |
eb711c86 RK |
1563 | /* Report a warning at the current line number. */ |
1564 | ||
1565 | static void | |
1566 | vwarning (s, ap) | |
1567 | char *s; | |
1568 | va_list ap; | |
1569 | { | |
1570 | v_warning_with_file_and_line (input_filename, lineno, s, ap); | |
4291d9c8 | 1571 | } |
eb711c86 RK |
1572 | |
1573 | void | |
e0e2a8da | 1574 | warning VPROTO((char *s, ...)) |
eb711c86 | 1575 | { |
e0e2a8da | 1576 | #ifndef __STDC__ |
eb711c86 | 1577 | char *s; |
e0e2a8da RK |
1578 | #endif |
1579 | va_list ap; | |
1580 | ||
1581 | VA_START (ap, s); | |
eb711c86 | 1582 | |
e0e2a8da | 1583 | #ifndef __STDC__ |
eb711c86 | 1584 | s = va_arg (ap, char *); |
e0e2a8da RK |
1585 | #endif |
1586 | ||
eb711c86 RK |
1587 | vwarning (s, ap); |
1588 | va_end (ap); | |
1589 | } | |
1590 | ||
4291d9c8 RS |
1591 | /* These functions issue either warnings or errors depending on |
1592 | -pedantic-errors. */ | |
1593 | ||
eb711c86 RK |
1594 | static void |
1595 | vpedwarn (s, ap) | |
4291d9c8 | 1596 | char *s; |
eb711c86 | 1597 | va_list ap; |
4291d9c8 RS |
1598 | { |
1599 | if (flag_pedantic_errors) | |
eb711c86 | 1600 | verror (s, ap); |
4291d9c8 | 1601 | else |
eb711c86 | 1602 | vwarning (s, ap); |
4291d9c8 RS |
1603 | } |
1604 | ||
1605 | void | |
e0e2a8da | 1606 | pedwarn VPROTO((char *s, ...)) |
eb711c86 | 1607 | { |
e0e2a8da | 1608 | #ifndef __STDC__ |
eb711c86 | 1609 | char *s; |
e0e2a8da RK |
1610 | #endif |
1611 | va_list ap; | |
1612 | ||
1613 | VA_START (ap, s); | |
eb711c86 | 1614 | |
e0e2a8da | 1615 | #ifndef __STDC__ |
eb711c86 | 1616 | s = va_arg (ap, char *); |
e0e2a8da RK |
1617 | #endif |
1618 | ||
eb711c86 RK |
1619 | vpedwarn (s, ap); |
1620 | va_end (ap); | |
1621 | } | |
1622 | ||
1623 | static void | |
1624 | v_pedwarn_with_decl (decl, s, ap) | |
4291d9c8 RS |
1625 | tree decl; |
1626 | char *s; | |
eb711c86 | 1627 | va_list ap; |
4291d9c8 | 1628 | { |
1554cdf5 DE |
1629 | /* We don't want -pedantic-errors to cause the compilation to fail from |
1630 | "errors" in system header files. Sometimes fixincludes can't fix what's | |
1631 | broken (eg: unsigned char bitfields - fixing it may change the alignment | |
1632 | which will cause programs to mysteriously fail because the C library | |
22d74562 DE |
1633 | or kernel uses the original layout). There's no point in issuing a |
1634 | warning either, it's just unnecessary noise. */ | |
1554cdf5 | 1635 | |
22d74562 DE |
1636 | if (! DECL_IN_SYSTEM_HEADER (decl)) |
1637 | { | |
1638 | if (flag_pedantic_errors) | |
1639 | v_error_with_decl (decl, s, ap); | |
1640 | else | |
1641 | v_warning_with_decl (decl, s, ap); | |
1642 | } | |
4291d9c8 RS |
1643 | } |
1644 | ||
1645 | void | |
e0e2a8da | 1646 | pedwarn_with_decl VPROTO((tree decl, char *s, ...)) |
eb711c86 | 1647 | { |
e0e2a8da | 1648 | #ifndef __STDC__ |
eb711c86 RK |
1649 | tree decl; |
1650 | char *s; | |
e0e2a8da RK |
1651 | #endif |
1652 | va_list ap; | |
eb711c86 | 1653 | |
e0e2a8da RK |
1654 | VA_START (ap, s); |
1655 | ||
1656 | #ifndef __STDC__ | |
eb711c86 RK |
1657 | decl = va_arg (ap, tree); |
1658 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1659 | #endif |
1660 | ||
eb711c86 RK |
1661 | v_pedwarn_with_decl (decl, s, ap); |
1662 | va_end (ap); | |
1663 | } | |
1664 | ||
1665 | static void | |
1666 | v_pedwarn_with_file_and_line (file, line, s, ap) | |
4291d9c8 RS |
1667 | char *file; |
1668 | int line; | |
1669 | char *s; | |
eb711c86 | 1670 | va_list ap; |
4291d9c8 RS |
1671 | { |
1672 | if (flag_pedantic_errors) | |
eb711c86 | 1673 | v_error_with_file_and_line (file, line, s, ap); |
4291d9c8 | 1674 | else |
eb711c86 | 1675 | v_warning_with_file_and_line (file, line, s, ap); |
4291d9c8 RS |
1676 | } |
1677 | ||
4291d9c8 | 1678 | void |
e0e2a8da | 1679 | pedwarn_with_file_and_line VPROTO((char *file, int line, char *s, ...)) |
eb711c86 | 1680 | { |
e0e2a8da | 1681 | #ifndef __STDC__ |
eb711c86 RK |
1682 | char *file; |
1683 | int line; | |
1684 | char *s; | |
e0e2a8da RK |
1685 | #endif |
1686 | va_list ap; | |
eb711c86 | 1687 | |
e0e2a8da RK |
1688 | VA_START (ap, s); |
1689 | ||
1690 | #ifndef __STDC__ | |
eb711c86 RK |
1691 | file = va_arg (ap, char *); |
1692 | line = va_arg (ap, int); | |
1693 | s = va_arg (ap, char *); | |
e0e2a8da RK |
1694 | #endif |
1695 | ||
eb711c86 RK |
1696 | v_pedwarn_with_file_and_line (file, line, s, ap); |
1697 | va_end (ap); | |
1698 | } | |
1699 | ||
1700 | /* Apologize for not implementing some feature. */ | |
1701 | ||
1702 | static void | |
1703 | vsorry (s, ap) | |
4291d9c8 | 1704 | char *s; |
eb711c86 | 1705 | va_list ap; |
4291d9c8 RS |
1706 | { |
1707 | sorrycount++; | |
1708 | if (input_filename) | |
1709 | fprintf (stderr, "%s:%d: ", input_filename, lineno); | |
1710 | else | |
1711 | fprintf (stderr, "%s: ", progname); | |
eb711c86 RK |
1712 | vmessage ("sorry, not implemented", s, ap); |
1713 | fputc ('\n', stderr); | |
1714 | } | |
4291d9c8 | 1715 | |
eb711c86 | 1716 | void |
e0e2a8da | 1717 | sorry VPROTO((char *s, ...)) |
eb711c86 | 1718 | { |
e0e2a8da | 1719 | #ifndef __STDC__ |
eb711c86 | 1720 | char *s; |
e0e2a8da RK |
1721 | #endif |
1722 | va_list ap; | |
1723 | ||
1724 | VA_START (ap, s); | |
eb711c86 | 1725 | |
e0e2a8da | 1726 | #ifndef __STDC__ |
eb711c86 | 1727 | s = va_arg (ap, char *); |
e0e2a8da RK |
1728 | #endif |
1729 | ||
eb711c86 RK |
1730 | vsorry (s, ap); |
1731 | va_end (ap); | |
4291d9c8 RS |
1732 | } |
1733 | ||
eb711c86 | 1734 | /* Apologize for not implementing some feature, then quit. */ |
4291d9c8 | 1735 | |
eb711c86 RK |
1736 | static void |
1737 | v_really_sorry (s, ap) | |
4291d9c8 | 1738 | char *s; |
eb711c86 | 1739 | va_list ap; |
4291d9c8 | 1740 | { |
eb711c86 | 1741 | sorrycount++; |
4291d9c8 RS |
1742 | if (input_filename) |
1743 | fprintf (stderr, "%s:%d: ", input_filename, lineno); | |
1744 | else | |
c10afc44 | 1745 | fprintf (stderr, "%s: ", progname); |
eb711c86 | 1746 | vmessage ("sorry, not implemented", s, ap); |
4291d9c8 RS |
1747 | fatal (" (fatal)\n"); |
1748 | } | |
eb711c86 RK |
1749 | |
1750 | void | |
e0e2a8da | 1751 | really_sorry VPROTO((char *s, ...)) |
eb711c86 | 1752 | { |
e0e2a8da | 1753 | #ifndef __STDC__ |
eb711c86 | 1754 | char *s; |
e0e2a8da RK |
1755 | #endif |
1756 | va_list ap; | |
1757 | ||
1758 | VA_START (ap, s); | |
eb711c86 | 1759 | |
e0e2a8da | 1760 | #ifndef __STDC__ |
eb711c86 | 1761 | s = va_arg (ap, char *); |
e0e2a8da RK |
1762 | #endif |
1763 | ||
eb711c86 RK |
1764 | v_really_sorry (s, ap); |
1765 | va_end (ap); | |
1766 | } | |
4291d9c8 RS |
1767 | \f |
1768 | /* More 'friendly' abort that prints the line and file. | |
1769 | config.h can #define abort fancy_abort if you like that sort of thing. | |
1770 | ||
1771 | I don't think this is actually a good idea. | |
1772 | Other sorts of crashes will look a certain way. | |
1773 | It is a good thing if crashes from calling abort look the same way. | |
1774 | -- RMS */ | |
1775 | ||
1776 | void | |
1777 | fancy_abort () | |
1778 | { | |
1779 | fatal ("internal gcc abort"); | |
1780 | } | |
1781 | ||
1782 | /* This calls abort and is used to avoid problems when abort if a macro. | |
1783 | It is used when we need to pass the address of abort. */ | |
1784 | ||
1785 | void | |
1786 | do_abort () | |
1787 | { | |
1788 | abort (); | |
1789 | } | |
1790 | ||
1791 | /* When `malloc.c' is compiled with `rcheck' defined, | |
1792 | it calls this function to report clobberage. */ | |
1793 | ||
1794 | void | |
1795 | botch (s) | |
1796 | { | |
1797 | abort (); | |
1798 | } | |
1799 | ||
1800 | /* Same as `malloc' but report error if no memory available. */ | |
1801 | ||
4b980e20 | 1802 | char * |
4291d9c8 RS |
1803 | xmalloc (size) |
1804 | unsigned size; | |
1805 | { | |
4b980e20 | 1806 | register char *value = (char *) malloc (size); |
4291d9c8 RS |
1807 | if (value == 0) |
1808 | fatal ("virtual memory exhausted"); | |
1809 | return value; | |
1810 | } | |
1811 | ||
1812 | /* Same as `realloc' but report error if no memory available. */ | |
1813 | ||
4b980e20 | 1814 | char * |
4291d9c8 RS |
1815 | xrealloc (ptr, size) |
1816 | char *ptr; | |
1817 | int size; | |
1818 | { | |
4b980e20 | 1819 | char *result = (char *) realloc (ptr, size); |
4291d9c8 RS |
1820 | if (!result) |
1821 | fatal ("virtual memory exhausted"); | |
1822 | return result; | |
1823 | } | |
3e386b9e RK |
1824 | |
1825 | /* Same as `strdup' but report error if no memory available. */ | |
1826 | ||
1827 | char * | |
1828 | xstrdup (s) | |
1829 | register char *s; | |
1830 | { | |
1831 | register char *result = (char *) malloc (strlen (s) + 1); | |
1832 | ||
1833 | if (! result) | |
1834 | fatal ("virtual memory exhausted"); | |
1835 | strcpy (result, s); | |
1836 | return result; | |
1837 | } | |
4291d9c8 RS |
1838 | \f |
1839 | /* Return the logarithm of X, base 2, considering X unsigned, | |
37366632 RK |
1840 | if X is a power of 2. Otherwise, returns -1. |
1841 | ||
1842 | This should be used via the `exact_log2' macro. */ | |
4291d9c8 RS |
1843 | |
1844 | int | |
37366632 RK |
1845 | exact_log2_wide (x) |
1846 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
1847 | { |
1848 | register int log = 0; | |
1849 | /* Test for 0 or a power of 2. */ | |
1850 | if (x == 0 || x != (x & -x)) | |
1851 | return -1; | |
1852 | while ((x >>= 1) != 0) | |
1853 | log++; | |
1854 | return log; | |
1855 | } | |
1856 | ||
1857 | /* Given X, an unsigned number, return the largest int Y such that 2**Y <= X. | |
37366632 RK |
1858 | If X is 0, return -1. |
1859 | ||
1860 | This should be used via the floor_log2 macro. */ | |
4291d9c8 RS |
1861 | |
1862 | int | |
37366632 RK |
1863 | floor_log2_wide (x) |
1864 | register unsigned HOST_WIDE_INT x; | |
4291d9c8 RS |
1865 | { |
1866 | register int log = -1; | |
1867 | while (x != 0) | |
1868 | log++, | |
1869 | x >>= 1; | |
1870 | return log; | |
1871 | } | |
1872 | ||
1873 | int float_handled; | |
1874 | jmp_buf float_handler; | |
1875 | ||
1876 | /* Specify where to longjmp to when a floating arithmetic error happens. | |
1877 | If HANDLER is 0, it means don't handle the errors any more. */ | |
1878 | ||
1879 | void | |
1880 | set_float_handler (handler) | |
1881 | jmp_buf handler; | |
1882 | { | |
1883 | float_handled = (handler != 0); | |
1884 | if (handler) | |
4c9a05bc | 1885 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
4291d9c8 RS |
1886 | } |
1887 | ||
bff4b641 RS |
1888 | /* Specify, in HANDLER, where to longjmp to when a floating arithmetic |
1889 | error happens, pushing the previous specification into OLD_HANDLER. | |
1890 | Return an indication of whether there was a previous handler in effect. */ | |
1891 | ||
1892 | int | |
1893 | push_float_handler (handler, old_handler) | |
dc2b15dc | 1894 | jmp_buf handler, old_handler; |
bff4b641 RS |
1895 | { |
1896 | int was_handled = float_handled; | |
1897 | ||
1898 | float_handled = 1; | |
1899 | if (was_handled) | |
4c9a05bc RK |
1900 | bcopy ((char *) float_handler, (char *) old_handler, |
1901 | sizeof (float_handler)); | |
1902 | ||
1903 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); | |
bff4b641 RS |
1904 | return was_handled; |
1905 | } | |
1906 | ||
1907 | /* Restore the previous specification of whether and where to longjmp to | |
1908 | when a floating arithmetic error happens. */ | |
1909 | ||
1910 | void | |
1911 | pop_float_handler (handled, handler) | |
1912 | int handled; | |
1913 | jmp_buf handler; | |
1914 | { | |
1915 | float_handled = handled; | |
1916 | if (handled) | |
4c9a05bc | 1917 | bcopy ((char *) handler, (char *) float_handler, sizeof (float_handler)); |
bff4b641 RS |
1918 | } |
1919 | ||
4291d9c8 RS |
1920 | /* Signals actually come here. */ |
1921 | ||
1922 | static void | |
1923 | float_signal (signo) | |
1924 | /* If this is missing, some compilers complain. */ | |
1925 | int signo; | |
1926 | { | |
1927 | if (float_handled == 0) | |
1928 | abort (); | |
1929 | #if defined (USG) || defined (hpux) | |
1930 | signal (SIGFPE, float_signal); /* re-enable the signal catcher */ | |
1931 | #endif | |
1932 | float_handled = 0; | |
1933 | signal (SIGFPE, float_signal); | |
1934 | longjmp (float_handler, 1); | |
1935 | } | |
1936 | ||
1937 | /* Handler for SIGPIPE. */ | |
1938 | ||
1939 | static void | |
1940 | pipe_closed (signo) | |
1941 | /* If this is missing, some compilers complain. */ | |
1942 | int signo; | |
1943 | { | |
1944 | fatal ("output pipe has been closed"); | |
1945 | } | |
1946 | ||
1947 | /* Strip off a legitimate source ending from the input string NAME of | |
c62bdc79 RK |
1948 | length LEN. Rather than having to know the names used by all of |
1949 | our front ends, we strip off an ending of a period followed by one, | |
1950 | two, or three characters. */ | |
4291d9c8 RS |
1951 | |
1952 | void | |
1953 | strip_off_ending (name, len) | |
1954 | char *name; | |
1955 | int len; | |
1956 | { | |
c62bdc79 RK |
1957 | if (len > 2 && name[len - 2] == '.') |
1958 | name[len - 2] = '\0'; | |
1959 | else if (len > 3 && name[len - 3] == '.') | |
1960 | name[len - 3] = '\0'; | |
1961 | else if (len > 4 && name[len - 4] == '.') | |
1962 | name[len - 4] = '\0'; | |
4291d9c8 RS |
1963 | } |
1964 | ||
7dce5088 | 1965 | /* Output a quoted string. */ |
0f41302f | 1966 | |
7dce5088 PE |
1967 | void |
1968 | output_quoted_string (asm_file, string) | |
1969 | FILE *asm_file; | |
1970 | char *string; | |
1971 | { | |
1972 | char c; | |
1973 | ||
1974 | putc ('\"', asm_file); | |
1975 | while ((c = *string++) != 0) | |
1976 | { | |
1977 | if (c == '\"' || c == '\\') | |
1978 | putc ('\\', asm_file); | |
1979 | putc (c, asm_file); | |
1980 | } | |
1981 | putc ('\"', asm_file); | |
1982 | } | |
1983 | ||
4291d9c8 RS |
1984 | /* Output a file name in the form wanted by System V. */ |
1985 | ||
1986 | void | |
1987 | output_file_directive (asm_file, input_name) | |
1988 | FILE *asm_file; | |
1989 | char *input_name; | |
1990 | { | |
1991 | int len = strlen (input_name); | |
1992 | char *na = input_name + len; | |
1993 | ||
1994 | /* NA gets INPUT_NAME sans directory names. */ | |
1995 | while (na > input_name) | |
1996 | { | |
1997 | if (na[-1] == '/') | |
1998 | break; | |
1999 | na--; | |
2000 | } | |
2001 | ||
2002 | #ifdef ASM_OUTPUT_MAIN_SOURCE_FILENAME | |
2003 | ASM_OUTPUT_MAIN_SOURCE_FILENAME (asm_file, na); | |
2004 | #else | |
2005 | #ifdef ASM_OUTPUT_SOURCE_FILENAME | |
2006 | ASM_OUTPUT_SOURCE_FILENAME (asm_file, na); | |
2007 | #else | |
7dce5088 PE |
2008 | fprintf (asm_file, "\t.file\t"); |
2009 | output_quoted_string (asm_file, na); | |
2010 | fputc ('\n', asm_file); | |
4291d9c8 RS |
2011 | #endif |
2012 | #endif | |
2013 | } | |
2014 | \f | |
0f41302f MS |
2015 | /* Routine to build language identifier for object file. */ |
2016 | ||
d0d4af87 MS |
2017 | static void |
2018 | output_lang_identify (asm_out_file) | |
2019 | FILE *asm_out_file; | |
2020 | { | |
2021 | int len = strlen (lang_identify ()) + sizeof ("__gnu_compiled_") + 1; | |
2022 | char *s = (char *) alloca (len); | |
2023 | sprintf (s, "__gnu_compiled_%s", lang_identify ()); | |
2024 | ASM_OUTPUT_LABEL (asm_out_file, s); | |
2025 | } | |
2026 | ||
dfe1a916 | 2027 | /* Routine to open a dump file. */ |
0f41302f | 2028 | |
dfe1a916 DE |
2029 | static FILE * |
2030 | open_dump_file (base_name, suffix) | |
2031 | char *base_name; | |
2032 | char *suffix; | |
2033 | { | |
2034 | FILE *f; | |
2035 | char *dumpname = (char *) alloca (strlen (base_name) + strlen (suffix) + 1); | |
2036 | ||
2037 | strcpy (dumpname, base_name); | |
2038 | strcat (dumpname, suffix); | |
2039 | f = fopen (dumpname, "w"); | |
2040 | if (f == 0) | |
2041 | pfatal_with_name (dumpname); | |
2042 | return f; | |
2043 | } | |
2044 | ||
4291d9c8 RS |
2045 | /* Compile an entire file of output from cpp, named NAME. |
2046 | Write a file of assembly output and various debugging dumps. */ | |
2047 | ||
2048 | static void | |
2049 | compile_file (name) | |
2050 | char *name; | |
2051 | { | |
2052 | tree globals; | |
2053 | int start_time; | |
4291d9c8 RS |
2054 | |
2055 | int name_specified = name != 0; | |
2056 | ||
2057 | if (dump_base_name == 0) | |
2058 | dump_base_name = name ? name : "gccdump"; | |
4291d9c8 RS |
2059 | |
2060 | parse_time = 0; | |
2061 | varconst_time = 0; | |
2062 | integration_time = 0; | |
2063 | jump_time = 0; | |
2064 | cse_time = 0; | |
2065 | loop_time = 0; | |
2066 | cse2_time = 0; | |
2067 | flow_time = 0; | |
2068 | combine_time = 0; | |
2069 | sched_time = 0; | |
2070 | local_alloc_time = 0; | |
2071 | global_alloc_time = 0; | |
2072 | sched2_time = 0; | |
2073 | dbr_sched_time = 0; | |
2074 | shorten_branch_time = 0; | |
2075 | stack_reg_time = 0; | |
2076 | final_time = 0; | |
2077 | symout_time = 0; | |
2078 | dump_time = 0; | |
2079 | ||
2080 | /* Open input file. */ | |
2081 | ||
2082 | if (name == 0 || !strcmp (name, "-")) | |
2083 | { | |
2084 | finput = stdin; | |
2085 | name = "stdin"; | |
2086 | } | |
2087 | else | |
2088 | finput = fopen (name, "r"); | |
2089 | if (finput == 0) | |
2090 | pfatal_with_name (name); | |
2091 | ||
282ea52a | 2092 | #ifdef IO_BUFFER_SIZE |
d7cedf4b | 2093 | setvbuf (finput, (char *) xmalloc (IO_BUFFER_SIZE), _IOFBF, IO_BUFFER_SIZE); |
282ea52a RS |
2094 | #endif |
2095 | ||
4291d9c8 RS |
2096 | /* Initialize data in various passes. */ |
2097 | ||
2098 | init_obstacks (); | |
2099 | init_tree_codes (); | |
2100 | init_lex (); | |
ca695ac9 JB |
2101 | /* Some of these really don't need to be called when generating bytecode, |
2102 | but the options would have to be parsed first to know that. -bson */ | |
4291d9c8 RS |
2103 | init_rtl (); |
2104 | init_emit_once (debug_info_level == DINFO_LEVEL_NORMAL | |
2105 | || debug_info_level == DINFO_LEVEL_VERBOSE); | |
7f21d440 | 2106 | init_regs (); |
4291d9c8 RS |
2107 | init_decl_processing (); |
2108 | init_optabs (); | |
2109 | init_stmt (); | |
2110 | init_expmed (); | |
4fa52007 | 2111 | init_expr_once (); |
4291d9c8 RS |
2112 | init_loop (); |
2113 | init_reload (); | |
2114 | ||
2115 | if (flag_caller_saves) | |
2116 | init_caller_save (); | |
2117 | ||
f246a305 RS |
2118 | /* If auxiliary info generation is desired, open the output file. |
2119 | This goes in the same directory as the source file--unlike | |
2120 | all the other output files. */ | |
4291d9c8 RS |
2121 | if (flag_gen_aux_info) |
2122 | { | |
4291d9c8 RS |
2123 | aux_info_file = fopen (aux_info_file_name, "w"); |
2124 | if (aux_info_file == 0) | |
2125 | pfatal_with_name (aux_info_file_name); | |
2126 | } | |
2127 | ||
2128 | /* If rtl dump desired, open the output file. */ | |
2129 | if (rtl_dump) | |
dfe1a916 | 2130 | rtl_dump_file = open_dump_file (dump_base_name, ".rtl"); |
4291d9c8 RS |
2131 | |
2132 | /* If jump_opt dump desired, open the output file. */ | |
2133 | if (jump_opt_dump) | |
dfe1a916 | 2134 | jump_opt_dump_file = open_dump_file (dump_base_name, ".jump"); |
4291d9c8 RS |
2135 | |
2136 | /* If cse dump desired, open the output file. */ | |
2137 | if (cse_dump) | |
dfe1a916 | 2138 | cse_dump_file = open_dump_file (dump_base_name, ".cse"); |
4291d9c8 RS |
2139 | |
2140 | /* If loop dump desired, open the output file. */ | |
2141 | if (loop_dump) | |
dfe1a916 | 2142 | loop_dump_file = open_dump_file (dump_base_name, ".loop"); |
4291d9c8 RS |
2143 | |
2144 | /* If cse2 dump desired, open the output file. */ | |
2145 | if (cse2_dump) | |
dfe1a916 | 2146 | cse2_dump_file = open_dump_file (dump_base_name, ".cse2"); |
4291d9c8 RS |
2147 | |
2148 | /* If flow dump desired, open the output file. */ | |
2149 | if (flow_dump) | |
dfe1a916 | 2150 | flow_dump_file = open_dump_file (dump_base_name, ".flow"); |
4291d9c8 RS |
2151 | |
2152 | /* If combine dump desired, open the output file. */ | |
2153 | if (combine_dump) | |
dfe1a916 | 2154 | combine_dump_file = open_dump_file (dump_base_name, ".combine"); |
4291d9c8 RS |
2155 | |
2156 | /* If scheduling dump desired, open the output file. */ | |
2157 | if (sched_dump) | |
dfe1a916 | 2158 | sched_dump_file = open_dump_file (dump_base_name, ".sched"); |
4291d9c8 RS |
2159 | |
2160 | /* If local_reg dump desired, open the output file. */ | |
2161 | if (local_reg_dump) | |
dfe1a916 | 2162 | local_reg_dump_file = open_dump_file (dump_base_name, ".lreg"); |
4291d9c8 RS |
2163 | |
2164 | /* If global_reg dump desired, open the output file. */ | |
2165 | if (global_reg_dump) | |
dfe1a916 | 2166 | global_reg_dump_file = open_dump_file (dump_base_name, ".greg"); |
4291d9c8 RS |
2167 | |
2168 | /* If 2nd scheduling dump desired, open the output file. */ | |
2169 | if (sched2_dump) | |
dfe1a916 | 2170 | sched2_dump_file = open_dump_file (dump_base_name, ".sched2"); |
4291d9c8 RS |
2171 | |
2172 | /* If jump2_opt dump desired, open the output file. */ | |
2173 | if (jump2_opt_dump) | |
dfe1a916 | 2174 | jump2_opt_dump_file = open_dump_file (dump_base_name, ".jump2"); |
4291d9c8 RS |
2175 | |
2176 | /* If dbr_sched dump desired, open the output file. */ | |
2177 | if (dbr_sched_dump) | |
dfe1a916 | 2178 | dbr_sched_dump_file = open_dump_file (dump_base_name, ".dbr"); |
4291d9c8 RS |
2179 | |
2180 | #ifdef STACK_REGS | |
2181 | ||
2182 | /* If stack_reg dump desired, open the output file. */ | |
2183 | if (stack_reg_dump) | |
dfe1a916 | 2184 | stack_reg_dump_file = open_dump_file (dump_base_name, ".stack"); |
4291d9c8 RS |
2185 | |
2186 | #endif | |
2187 | ||
2188 | /* Open assembler code output file. */ | |
2189 | ||
2190 | if (! name_specified && asm_file_name == 0) | |
2191 | asm_out_file = stdout; | |
2192 | else | |
2193 | { | |
4291d9c8 | 2194 | int len = strlen (dump_base_name); |
dfe1a916 | 2195 | register char *dumpname = (char *) xmalloc (len + 6); |
4291d9c8 RS |
2196 | strcpy (dumpname, dump_base_name); |
2197 | strip_off_ending (dumpname, len); | |
2198 | strcat (dumpname, ".s"); | |
2199 | if (asm_file_name == 0) | |
2200 | { | |
2201 | asm_file_name = (char *) xmalloc (strlen (dumpname) + 1); | |
2202 | strcpy (asm_file_name, dumpname); | |
2203 | } | |
2204 | if (!strcmp (asm_file_name, "-")) | |
2205 | asm_out_file = stdout; | |
2206 | else | |
2207 | asm_out_file = fopen (asm_file_name, "w"); | |
2208 | if (asm_out_file == 0) | |
2209 | pfatal_with_name (asm_file_name); | |
2210 | } | |
2211 | ||
f246a305 | 2212 | #ifdef IO_BUFFER_SIZE |
d7cedf4b RS |
2213 | setvbuf (asm_out_file, (char *) xmalloc (IO_BUFFER_SIZE), |
2214 | _IOFBF, IO_BUFFER_SIZE); | |
f246a305 RS |
2215 | #endif |
2216 | ||
4291d9c8 RS |
2217 | input_filename = name; |
2218 | ||
18736654 RK |
2219 | /* Put an entry on the input file stack for the main input file. */ |
2220 | input_file_stack | |
2221 | = (struct file_stack *) xmalloc (sizeof (struct file_stack)); | |
2222 | input_file_stack->next = 0; | |
2223 | input_file_stack->name = input_filename; | |
2224 | ||
4291d9c8 RS |
2225 | /* Perform language-specific initialization. |
2226 | This may set main_input_filename. */ | |
2227 | lang_init (); | |
2228 | ||
2229 | /* If the input doesn't start with a #line, use the input name | |
2230 | as the official input file name. */ | |
2231 | if (main_input_filename == 0) | |
2232 | main_input_filename = name; | |
2233 | ||
ca695ac9 JB |
2234 | if (!output_bytecode) |
2235 | { | |
2236 | ASM_FILE_START (asm_out_file); | |
3d5cdd42 DE |
2237 | |
2238 | #ifdef ASM_COMMENT_START | |
2239 | if (flag_verbose_asm) | |
2240 | { | |
2241 | /* Print the list of options in effect. */ | |
3d5cdd42 DE |
2242 | print_version (asm_out_file, ASM_COMMENT_START); |
2243 | print_switch_values (asm_out_file, 0, MAX_LINE, | |
2244 | ASM_COMMENT_START, " ", "\n"); | |
2245 | /* Add a blank line here so it appears in assembler output but not | |
2246 | screen output. */ | |
2247 | fprintf (asm_out_file, "\n"); | |
2248 | } | |
2249 | #endif | |
ca695ac9 | 2250 | } |
4291d9c8 | 2251 | |
ca695ac9 | 2252 | /* Output something to inform GDB that this compilation was by GCC. Also |
0f41302f | 2253 | serves to tell GDB file consists of bytecodes. */ |
ca695ac9 JB |
2254 | if (output_bytecode) |
2255 | fprintf (asm_out_file, "bc_gcc2_compiled.:\n"); | |
2256 | else | |
2257 | { | |
4291d9c8 | 2258 | #ifndef ASM_IDENTIFY_GCC |
ca695ac9 | 2259 | fprintf (asm_out_file, "gcc2_compiled.:\n"); |
4291d9c8 | 2260 | #else |
ca695ac9 | 2261 | ASM_IDENTIFY_GCC (asm_out_file); |
4291d9c8 | 2262 | #endif |
ca695ac9 | 2263 | } |
d0d4af87 | 2264 | |
0f41302f | 2265 | /* Output something to identify which front-end produced this file. */ |
d0d4af87 MS |
2266 | #ifdef ASM_IDENTIFY_LANGUAGE |
2267 | ASM_IDENTIFY_LANGUAGE (asm_out_file); | |
2268 | #endif | |
2269 | ||
cf440348 JL |
2270 | #ifndef ASM_OUTPUT_SECTION_NAME |
2271 | if (flag_function_sections) | |
2272 | { | |
2273 | warning ("-ffunction-sections not supported for this target."); | |
2274 | flag_function_sections = 0; | |
2275 | } | |
2276 | #endif | |
2277 | ||
2278 | if (flag_function_sections | |
2279 | && (profile_flag || profile_block_flag)) | |
2280 | { | |
2281 | warning ("-ffunction-sections disabled; it makes profiling impossible."); | |
2282 | flag_function_sections = 0; | |
2283 | } | |
2284 | ||
2285 | if (flag_function_sections && write_symbols != NO_DEBUG) | |
2286 | warning ("-ffunction-sections may affect debugging on some targets."); | |
2287 | ||
ca695ac9 JB |
2288 | if (output_bytecode) |
2289 | { | |
2290 | if (profile_flag || profile_block_flag) | |
2291 | error ("profiling not supported in bytecode compilation"); | |
2292 | } | |
2293 | else | |
2294 | { | |
2295 | /* ??? Note: There used to be a conditional here | |
2296 | to call assemble_zeros without fail if DBX_DEBUGGING_INFO is defined. | |
2297 | This was to guarantee separation between gcc_compiled. and | |
2298 | the first function, for the sake of dbx on Suns. | |
2299 | However, having the extra zero here confused the Emacs | |
2300 | code for unexec, and might confuse other programs too. | |
2301 | Therefore, I took out that change. | |
2302 | In future versions we should find another way to solve | |
2303 | that dbx problem. -- rms, 23 May 93. */ | |
2304 | ||
2305 | /* Don't let the first function fall at the same address | |
2306 | as gcc_compiled., if profiling. */ | |
2307 | if (profile_flag || profile_block_flag) | |
2308 | assemble_zeros (UNITS_PER_WORD); | |
2309 | } | |
4291d9c8 RS |
2310 | |
2311 | /* If dbx symbol table desired, initialize writing it | |
2312 | and output the predefined types. */ | |
f246a305 RS |
2313 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2314 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2315 | TIMEVAR (symout_time, dbxout_init (asm_out_file, main_input_filename, |
2316 | getdecls ())); | |
2317 | #endif | |
2318 | #ifdef SDB_DEBUGGING_INFO | |
2319 | if (write_symbols == SDB_DEBUG) | |
2320 | TIMEVAR (symout_time, sdbout_init (asm_out_file, main_input_filename, | |
2321 | getdecls ())); | |
2322 | #endif | |
2323 | #ifdef DWARF_DEBUGGING_INFO | |
2324 | if (write_symbols == DWARF_DEBUG) | |
2325 | TIMEVAR (symout_time, dwarfout_init (asm_out_file, main_input_filename)); | |
2326 | #endif | |
9a666dda JM |
2327 | #ifdef DWARF2_DEBUGGING_INFO |
2328 | if (write_symbols == DWARF2_DEBUG) | |
2329 | TIMEVAR (symout_time, dwarf2out_init (asm_out_file, main_input_filename)); | |
2330 | #endif | |
4291d9c8 RS |
2331 | |
2332 | /* Initialize yet another pass. */ | |
2333 | ||
ca695ac9 JB |
2334 | if (!output_bytecode) |
2335 | init_final (main_input_filename); | |
4291d9c8 RS |
2336 | |
2337 | start_time = get_run_time (); | |
2338 | ||
2339 | /* Call the parser, which parses the entire file | |
2340 | (calling rest_of_compilation for each function). */ | |
2341 | ||
2342 | if (yyparse () != 0) | |
453dfc78 JW |
2343 | { |
2344 | if (errorcount == 0) | |
2345 | fprintf (stderr, "Errors detected in input file (your bison.simple is out of date)"); | |
2346 | ||
2347 | /* In case there were missing closebraces, | |
2348 | get us back to the global binding level. */ | |
2349 | while (! global_bindings_p ()) | |
2350 | poplevel (0, 0, 0); | |
2351 | } | |
4291d9c8 RS |
2352 | |
2353 | /* Compilation is now finished except for writing | |
2354 | what's left of the symbol table output. */ | |
2355 | ||
2356 | parse_time += get_run_time () - start_time; | |
2357 | ||
2358 | parse_time -= integration_time; | |
2359 | parse_time -= varconst_time; | |
2360 | ||
2361 | globals = getdecls (); | |
2362 | ||
2363 | /* Really define vars that have had only a tentative definition. | |
2364 | Really output inline functions that must actually be callable | |
2365 | and have not been output so far. */ | |
2366 | ||
2367 | { | |
2368 | int len = list_length (globals); | |
2369 | tree *vec = (tree *) alloca (sizeof (tree) * len); | |
2370 | int i; | |
2371 | tree decl; | |
2b6c54d6 | 2372 | int reconsider = 1; |
4291d9c8 RS |
2373 | |
2374 | /* Process the decls in reverse order--earliest first. | |
2375 | Put them into VEC from back to front, then take out from front. */ | |
2376 | ||
2377 | for (i = 0, decl = globals; i < len; i++, decl = TREE_CHAIN (decl)) | |
2378 | vec[len - i - 1] = decl; | |
2379 | ||
2380 | for (i = 0; i < len; i++) | |
2381 | { | |
2382 | decl = vec[i]; | |
07af9d16 JM |
2383 | |
2384 | /* We're not deferring this any longer. */ | |
2385 | DECL_DEFER_OUTPUT (decl) = 0; | |
2386 | ||
488b1f4f RS |
2387 | if (TREE_CODE (decl) == VAR_DECL && DECL_SIZE (decl) == 0 |
2388 | && incomplete_decl_finalize_hook != 0) | |
2b599527 | 2389 | (*incomplete_decl_finalize_hook) (decl); |
2b6c54d6 | 2390 | } |
2b599527 | 2391 | |
2b6c54d6 JM |
2392 | /* Now emit any global variables or functions that we have been putting |
2393 | off. We need to loop in case one of the things emitted here | |
2394 | references another one which comes earlier in the list. */ | |
2395 | while (reconsider) | |
2396 | { | |
2397 | reconsider = 0; | |
2398 | for (i = 0; i < len; i++) | |
4291d9c8 | 2399 | { |
2b6c54d6 JM |
2400 | decl = vec[i]; |
2401 | ||
2402 | if (TREE_ASM_WRITTEN (decl) || DECL_EXTERNAL (decl)) | |
2403 | continue; | |
2404 | ||
6b2bd61e PB |
2405 | /* Don't write out static consts, unless we still need them. |
2406 | ||
fbe912dd BK |
2407 | We also keep static consts if not optimizing (for debugging), |
2408 | unless the user specified -fno-keep-static-consts. | |
6b2bd61e PB |
2409 | ??? They might be better written into the debug information. |
2410 | This is possible when using DWARF. | |
2411 | ||
2412 | A language processor that wants static constants to be always | |
2413 | written out (even if it is not used) is responsible for | |
2414 | calling rest_of_decl_compilation itself. E.g. the C front-end | |
2415 | calls rest_of_decl_compilation from finish_decl. | |
2416 | One motivation for this is that is conventional in some | |
2417 | environments to write things like: | |
2418 | static const char rcsid[] = "... version string ..."; | |
2419 | intending to force the string to be in the executable. | |
2420 | ||
2421 | A language processor that would prefer to have unneeded | |
2422 | static constants "optimized away" would just defer writing | |
2423 | them out until here. E.g. C++ does this, because static | |
2424 | constants are often defined in header files. | |
2425 | ||
2426 | ??? A tempting alternative (for both C and C++) would be | |
2427 | to force a constant to be written if and only if it is | |
0f41302f | 2428 | defined in a main file, as opposed to an include file. */ |
6b2bd61e | 2429 | |
2b6c54d6 JM |
2430 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) |
2431 | && (! TREE_READONLY (decl) | |
2432 | || TREE_PUBLIC (decl) | |
fbe912dd | 2433 | || (!optimize && flag_keep_static_consts) |
2b6c54d6 JM |
2434 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) |
2435 | { | |
2436 | reconsider = 1; | |
2437 | rest_of_decl_compilation (decl, NULL_PTR, 1, 1); | |
2438 | } | |
2439 | ||
2440 | if (TREE_CODE (decl) == FUNCTION_DECL | |
2441 | && DECL_INITIAL (decl) != 0 | |
2442 | && DECL_SAVED_INSNS (decl) != 0 | |
2443 | && (flag_keep_inline_functions | |
2444 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl)))) | |
2445 | { | |
2446 | reconsider = 1; | |
2447 | temporary_allocation (); | |
2448 | output_inline_function (decl); | |
2449 | permanent_allocation (1); | |
2450 | } | |
4291d9c8 | 2451 | } |
2b6c54d6 | 2452 | } |
4291d9c8 | 2453 | |
3d195391 MS |
2454 | /* Now that all possible functions have been output, we can dump |
2455 | the exception table. */ | |
2456 | ||
2457 | if (exception_table_p ()) | |
2458 | output_exception_table (); | |
2459 | ||
2b6c54d6 JM |
2460 | for (i = 0; i < len; i++) |
2461 | { | |
2462 | decl = vec[i]; | |
2463 | ||
2464 | if (TREE_CODE (decl) == VAR_DECL && TREE_STATIC (decl) | |
2465 | && ! TREE_ASM_WRITTEN (decl)) | |
2466 | /* Cancel the RTL for this decl so that, if debugging info | |
2467 | output for global variables is still to come, | |
2468 | this one will be omitted. */ | |
2469 | DECL_RTL (decl) = NULL; | |
4291d9c8 | 2470 | |
ac266247 RS |
2471 | /* Warn about any function |
2472 | declared static but not defined. | |
2473 | We don't warn about variables, | |
2474 | because many programs have static variables | |
2475 | that exist only to get some text into the object file. */ | |
8c461ea1 JM |
2476 | if (TREE_CODE (decl) == FUNCTION_DECL |
2477 | && (warn_unused | |
2478 | || TREE_SYMBOL_REFERENCED (DECL_ASSEMBLER_NAME (decl))) | |
4291d9c8 | 2479 | && DECL_INITIAL (decl) == 0 |
216d5cdd | 2480 | && DECL_EXTERNAL (decl) |
d1b01681 | 2481 | && ! DECL_ARTIFICIAL (decl) |
4291d9c8 | 2482 | && ! TREE_PUBLIC (decl)) |
7d429c41 | 2483 | { |
8c461ea1 | 2484 | pedwarn_with_decl (decl, |
7d429c41 RS |
2485 | "`%s' declared `static' but never defined"); |
2486 | /* This symbol is effectively an "extern" declaration now. */ | |
2487 | TREE_PUBLIC (decl) = 1; | |
2488 | assemble_external (decl); | |
7d429c41 | 2489 | } |
8c461ea1 | 2490 | |
4291d9c8 | 2491 | /* Warn about static fns or vars defined but not used, |
7062b881 PB |
2492 | but not about inline functions or static consts |
2493 | since defining those in header files is normal practice. */ | |
4291d9c8 | 2494 | if (warn_unused |
7062b881 PB |
2495 | && ((TREE_CODE (decl) == FUNCTION_DECL && ! DECL_INLINE (decl)) |
2496 | || (TREE_CODE (decl) == VAR_DECL && ! TREE_READONLY (decl))) | |
0c20aabf | 2497 | && ! DECL_IN_SYSTEM_HEADER (decl) |
216d5cdd | 2498 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2499 | && ! TREE_PUBLIC (decl) |
2500 | && ! TREE_USED (decl) | |
f843649d | 2501 | && (TREE_CODE (decl) == FUNCTION_DECL || ! DECL_REGISTER (decl)) |
4291d9c8 RS |
2502 | /* The TREE_USED bit for file-scope decls |
2503 | is kept in the identifier, to handle multiple | |
2504 | external decls in different scopes. */ | |
2505 | && ! TREE_USED (DECL_NAME (decl))) | |
2506 | warning_with_decl (decl, "`%s' defined but not used"); | |
2507 | ||
2508 | #ifdef SDB_DEBUGGING_INFO | |
2509 | /* The COFF linker can move initialized global vars to the end. | |
2510 | And that can screw up the symbol ordering. | |
2511 | By putting the symbols in that order to begin with, | |
2512 | we avoid a problem. mcsun!unido!fauern!tumuc!pes@uunet.uu.net. */ | |
2513 | if (write_symbols == SDB_DEBUG && TREE_CODE (decl) == VAR_DECL | |
2514 | && TREE_PUBLIC (decl) && DECL_INITIAL (decl) | |
7efad3f7 | 2515 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2516 | && DECL_RTL (decl) != 0) |
2517 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
2518 | ||
2519 | /* Output COFF information for non-global | |
0f41302f | 2520 | file-scope initialized variables. */ |
4291d9c8 RS |
2521 | if (write_symbols == SDB_DEBUG |
2522 | && TREE_CODE (decl) == VAR_DECL | |
2523 | && DECL_INITIAL (decl) | |
7efad3f7 | 2524 | && ! DECL_EXTERNAL (decl) |
4291d9c8 RS |
2525 | && DECL_RTL (decl) != 0 |
2526 | && GET_CODE (DECL_RTL (decl)) == MEM) | |
2527 | TIMEVAR (symout_time, sdbout_toplevel_data (decl)); | |
2528 | #endif /* SDB_DEBUGGING_INFO */ | |
2529 | #ifdef DWARF_DEBUGGING_INFO | |
6dc42e49 | 2530 | /* Output DWARF information for file-scope tentative data object |
4291d9c8 RS |
2531 | declarations, file-scope (extern) function declarations (which |
2532 | had no corresponding body) and file-scope tagged type declarations | |
2533 | and definitions which have not yet been forced out. */ | |
2534 | ||
2535 | if (write_symbols == DWARF_DEBUG | |
2536 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
2537 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 1)); | |
9a666dda JM |
2538 | #endif |
2539 | #ifdef DWARF2_DEBUGGING_INFO | |
2540 | /* Output DWARF2 information for file-scope tentative data object | |
2541 | declarations, file-scope (extern) function declarations (which | |
2542 | had no corresponding body) and file-scope tagged type declarations | |
2543 | and definitions which have not yet been forced out. */ | |
2544 | ||
2545 | if (write_symbols == DWARF2_DEBUG | |
2546 | && (TREE_CODE (decl) != FUNCTION_DECL || !DECL_INITIAL (decl))) | |
88dad228 | 2547 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
4291d9c8 RS |
2548 | #endif |
2549 | } | |
2550 | } | |
2551 | ||
4b8af8d9 JM |
2552 | /* Write out any pending weak symbol declarations. */ |
2553 | ||
2554 | weak_finish (); | |
2555 | ||
4291d9c8 | 2556 | /* Do dbx symbols */ |
f246a305 RS |
2557 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2558 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2559 | TIMEVAR (symout_time, |
2560 | { | |
2561 | dbxout_finish (asm_out_file, main_input_filename); | |
2562 | }); | |
2563 | #endif | |
2564 | ||
2565 | #ifdef DWARF_DEBUGGING_INFO | |
2566 | if (write_symbols == DWARF_DEBUG) | |
2567 | TIMEVAR (symout_time, | |
2568 | { | |
2569 | dwarfout_finish (); | |
2570 | }); | |
2571 | #endif | |
2572 | ||
9a666dda JM |
2573 | #ifdef DWARF2_DEBUGGING_INFO |
2574 | if (write_symbols == DWARF2_DEBUG) | |
2575 | TIMEVAR (symout_time, | |
2576 | { | |
2577 | dwarf2out_finish (); | |
2578 | }); | |
2579 | #endif | |
2580 | ||
4291d9c8 RS |
2581 | /* Output some stuff at end of file if nec. */ |
2582 | ||
ca695ac9 JB |
2583 | if (!output_bytecode) |
2584 | { | |
2585 | end_final (main_input_filename); | |
4291d9c8 RS |
2586 | |
2587 | #ifdef ASM_FILE_END | |
ca695ac9 | 2588 | ASM_FILE_END (asm_out_file); |
4291d9c8 | 2589 | #endif |
ca695ac9 | 2590 | } |
4291d9c8 | 2591 | |
4291d9c8 RS |
2592 | /* Language-specific end of compilation actions. */ |
2593 | ||
2594 | lang_finish (); | |
2595 | ||
0207ea82 RK |
2596 | if (output_bytecode) |
2597 | bc_write_file (asm_out_file); | |
2598 | ||
4291d9c8 RS |
2599 | /* Close the dump files. */ |
2600 | ||
2601 | if (flag_gen_aux_info) | |
2602 | { | |
2603 | fclose (aux_info_file); | |
2604 | if (errorcount) | |
2605 | unlink (aux_info_file_name); | |
2606 | } | |
2607 | ||
2608 | if (rtl_dump) | |
2609 | fclose (rtl_dump_file); | |
2610 | ||
2611 | if (jump_opt_dump) | |
2612 | fclose (jump_opt_dump_file); | |
2613 | ||
2614 | if (cse_dump) | |
2615 | fclose (cse_dump_file); | |
2616 | ||
2617 | if (loop_dump) | |
2618 | fclose (loop_dump_file); | |
2619 | ||
2620 | if (cse2_dump) | |
2621 | fclose (cse2_dump_file); | |
2622 | ||
2623 | if (flow_dump) | |
2624 | fclose (flow_dump_file); | |
2625 | ||
2626 | if (combine_dump) | |
2627 | { | |
2628 | dump_combine_total_stats (combine_dump_file); | |
2629 | fclose (combine_dump_file); | |
2630 | } | |
2631 | ||
2632 | if (sched_dump) | |
2633 | fclose (sched_dump_file); | |
2634 | ||
2635 | if (local_reg_dump) | |
2636 | fclose (local_reg_dump_file); | |
2637 | ||
2638 | if (global_reg_dump) | |
2639 | fclose (global_reg_dump_file); | |
2640 | ||
2641 | if (sched2_dump) | |
2642 | fclose (sched2_dump_file); | |
2643 | ||
2644 | if (jump2_opt_dump) | |
2645 | fclose (jump2_opt_dump_file); | |
2646 | ||
2647 | if (dbr_sched_dump) | |
2648 | fclose (dbr_sched_dump_file); | |
2649 | ||
2650 | #ifdef STACK_REGS | |
2651 | if (stack_reg_dump) | |
2652 | fclose (stack_reg_dump_file); | |
2653 | #endif | |
2654 | ||
2655 | /* Close non-debugging input and output files. Take special care to note | |
2656 | whether fclose returns an error, since the pages might still be on the | |
2657 | buffer chain while the file is open. */ | |
2658 | ||
2659 | fclose (finput); | |
2660 | if (ferror (asm_out_file) != 0 || fclose (asm_out_file) != 0) | |
2661 | fatal_io_error (asm_file_name); | |
2662 | ||
2663 | /* Print the times. */ | |
2664 | ||
2665 | if (! quiet_flag) | |
2666 | { | |
2667 | fprintf (stderr,"\n"); | |
2668 | print_time ("parse", parse_time); | |
ca695ac9 JB |
2669 | |
2670 | if (!output_bytecode) | |
2671 | { | |
2672 | print_time ("integration", integration_time); | |
2673 | print_time ("jump", jump_time); | |
2674 | print_time ("cse", cse_time); | |
2675 | print_time ("loop", loop_time); | |
2676 | print_time ("cse2", cse2_time); | |
2677 | print_time ("flow", flow_time); | |
2678 | print_time ("combine", combine_time); | |
2679 | print_time ("sched", sched_time); | |
2680 | print_time ("local-alloc", local_alloc_time); | |
2681 | print_time ("global-alloc", global_alloc_time); | |
2682 | print_time ("sched2", sched2_time); | |
2683 | print_time ("dbranch", dbr_sched_time); | |
2684 | print_time ("shorten-branch", shorten_branch_time); | |
2685 | print_time ("stack-reg", stack_reg_time); | |
2686 | print_time ("final", final_time); | |
2687 | print_time ("varconst", varconst_time); | |
2688 | print_time ("symout", symout_time); | |
2689 | print_time ("dump", dump_time); | |
2690 | } | |
4291d9c8 RS |
2691 | } |
2692 | } | |
2693 | \f | |
2694 | /* This is called from various places for FUNCTION_DECL, VAR_DECL, | |
2695 | and TYPE_DECL nodes. | |
2696 | ||
2697 | This does nothing for local (non-static) variables. | |
2698 | Otherwise, it sets up the RTL and outputs any assembler code | |
2699 | (label definition, storage allocation and initialization). | |
2700 | ||
2701 | DECL is the declaration. If ASMSPEC is nonzero, it specifies | |
2702 | the assembler symbol name to be used. TOP_LEVEL is nonzero | |
2703 | if this declaration is not within a function. */ | |
2704 | ||
2705 | void | |
2706 | rest_of_decl_compilation (decl, asmspec, top_level, at_end) | |
2707 | tree decl; | |
2708 | char *asmspec; | |
2709 | int top_level; | |
2710 | int at_end; | |
2711 | { | |
2712 | /* Declarations of variables, and of functions defined elsewhere. */ | |
2713 | ||
928eb380 RS |
2714 | /* The most obvious approach, to put an #ifndef around where |
2715 | this macro is used, doesn't work since it's inside a macro call. */ | |
2716 | #ifndef ASM_FINISH_DECLARE_OBJECT | |
2717 | #define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP, END) | |
2718 | #endif | |
2719 | ||
4291d9c8 RS |
2720 | /* Forward declarations for nested functions are not "external", |
2721 | but we need to treat them as if they were. */ | |
216d5cdd | 2722 | if (TREE_STATIC (decl) || DECL_EXTERNAL (decl) |
4291d9c8 RS |
2723 | || TREE_CODE (decl) == FUNCTION_DECL) |
2724 | TIMEVAR (varconst_time, | |
2725 | { | |
2726 | make_decl_rtl (decl, asmspec, top_level); | |
9a9a9643 RS |
2727 | /* Initialized extern variable exists to be replaced |
2728 | with its value, or represents something that will be | |
2729 | output in another file. */ | |
6dbf678a | 2730 | if (! (TREE_CODE (decl) == VAR_DECL |
9a9a9643 RS |
2731 | && DECL_EXTERNAL (decl) && TREE_READONLY (decl) |
2732 | && DECL_INITIAL (decl) != 0 | |
5b272d50 | 2733 | && DECL_INITIAL (decl) != error_mark_node)) |
6dbf678a RS |
2734 | /* Don't output anything |
2735 | when a tentative file-scope definition is seen. | |
2736 | But at end of compilation, do output code for them. */ | |
2737 | if (! (! at_end && top_level | |
2738 | && (DECL_INITIAL (decl) == 0 | |
9a9a9643 | 2739 | || DECL_INITIAL (decl) == error_mark_node))) |
8380e2f2 | 2740 | assemble_variable (decl, top_level, at_end, 0); |
5b7540b6 DE |
2741 | if (!output_bytecode |
2742 | && decl == last_assemble_variable_decl) | |
5e10b3cc RS |
2743 | { |
2744 | ASM_FINISH_DECLARE_OBJECT (asm_out_file, decl, | |
2745 | top_level, at_end); | |
2746 | } | |
4291d9c8 | 2747 | }); |
216d5cdd | 2748 | else if (DECL_REGISTER (decl) && asmspec != 0) |
4291d9c8 RS |
2749 | { |
2750 | if (decode_reg_name (asmspec) >= 0) | |
2751 | { | |
2752 | DECL_RTL (decl) = 0; | |
2753 | make_decl_rtl (decl, asmspec, top_level); | |
2754 | } | |
2755 | else | |
2756 | error ("invalid register name `%s' for register variable", asmspec); | |
2757 | } | |
f246a305 RS |
2758 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2759 | else if ((write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
2760 | && TREE_CODE (decl) == TYPE_DECL) | |
4291d9c8 RS |
2761 | TIMEVAR (symout_time, dbxout_symbol (decl, 0)); |
2762 | #endif | |
2763 | #ifdef SDB_DEBUGGING_INFO | |
2764 | else if (write_symbols == SDB_DEBUG && top_level | |
2765 | && TREE_CODE (decl) == TYPE_DECL) | |
2766 | TIMEVAR (symout_time, sdbout_symbol (decl, 0)); | |
2767 | #endif | |
2768 | } | |
2769 | ||
2770 | /* Called after finishing a record, union or enumeral type. */ | |
2771 | ||
2772 | void | |
2773 | rest_of_type_compilation (type, toplev) | |
2774 | tree type; | |
2775 | int toplev; | |
2776 | { | |
f246a305 RS |
2777 | #if defined (DBX_DEBUGGING_INFO) || defined (XCOFF_DEBUGGING_INFO) |
2778 | if (write_symbols == DBX_DEBUG || write_symbols == XCOFF_DEBUG) | |
4291d9c8 RS |
2779 | TIMEVAR (symout_time, dbxout_symbol (TYPE_STUB_DECL (type), !toplev)); |
2780 | #endif | |
2781 | #ifdef SDB_DEBUGGING_INFO | |
2782 | if (write_symbols == SDB_DEBUG) | |
2783 | TIMEVAR (symout_time, sdbout_symbol (TYPE_STUB_DECL (type), !toplev)); | |
2784 | #endif | |
2785 | } | |
2786 | ||
2787 | /* This is called from finish_function (within yyparse) | |
2788 | after each top-level definition is parsed. | |
2789 | It is supposed to compile that function or variable | |
2790 | and output the assembler code for it. | |
2791 | After we return, the tree storage is freed. */ | |
2792 | ||
2793 | void | |
2794 | rest_of_compilation (decl) | |
2795 | tree decl; | |
2796 | { | |
2797 | register rtx insns; | |
2798 | int start_time = get_run_time (); | |
2799 | int tem; | |
2800 | /* Nonzero if we have saved the original DECL_INITIAL of the function, | |
2801 | to be restored after we finish compiling the function | |
2802 | (for use when compiling inline calls to this function). */ | |
2803 | tree saved_block_tree = 0; | |
8a958768 RS |
2804 | /* Likewise, for DECL_ARGUMENTS. */ |
2805 | tree saved_arguments = 0; | |
ab40ad2b | 2806 | int failure = 0; |
4291d9c8 | 2807 | |
ca695ac9 JB |
2808 | if (output_bytecode) |
2809 | return; | |
2810 | ||
4291d9c8 RS |
2811 | /* If we are reconsidering an inline function |
2812 | at the end of compilation, skip the stuff for making it inline. */ | |
2813 | ||
2814 | if (DECL_SAVED_INSNS (decl) == 0) | |
2815 | { | |
9deaf1b1 | 2816 | int inlineable = 0; |
4291d9c8 RS |
2817 | char *lose; |
2818 | ||
2819 | /* If requested, consider whether to make this function inline. */ | |
9deaf1b1 | 2820 | if (DECL_INLINE (decl) || flag_inline_functions) |
4291d9c8 RS |
2821 | TIMEVAR (integration_time, |
2822 | { | |
2823 | lose = function_cannot_inline_p (decl); | |
caa0eccd | 2824 | if (lose || ! optimize) |
4291d9c8 | 2825 | { |
9deaf1b1 | 2826 | if (warn_inline && DECL_INLINE (decl)) |
4291d9c8 | 2827 | warning_with_decl (decl, lose); |
9548c538 | 2828 | DECL_ABSTRACT_ORIGIN (decl) = 0; |
46dbb914 RS |
2829 | /* Don't really compile an extern inline function. |
2830 | If we can't make it inline, pretend | |
2831 | it was only declared. */ | |
2832 | if (DECL_EXTERNAL (decl)) | |
27937f46 RS |
2833 | { |
2834 | DECL_INITIAL (decl) = 0; | |
2835 | goto exit_rest_of_compilation; | |
2836 | } | |
4291d9c8 RS |
2837 | } |
2838 | else | |
9deaf1b1 RK |
2839 | /* ??? Note that this has the effect of making it look |
2840 | like "inline" was specified for a function if we choose | |
2841 | to inline it. This isn't quite right, but it's | |
2842 | probably not worth the trouble to fix. */ | |
2843 | inlineable = DECL_INLINE (decl) = 1; | |
4291d9c8 RS |
2844 | }); |
2845 | ||
2846 | insns = get_insns (); | |
2847 | ||
2848 | /* Dump the rtl code if we are dumping rtl. */ | |
2849 | ||
2850 | if (rtl_dump) | |
2851 | TIMEVAR (dump_time, | |
2852 | { | |
2853 | fprintf (rtl_dump_file, "\n;; Function %s\n\n", | |
2854 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
2855 | if (DECL_SAVED_INSNS (decl)) | |
2856 | fprintf (rtl_dump_file, ";; (integrable)\n\n"); | |
2857 | print_rtl (rtl_dump_file, insns); | |
2858 | fflush (rtl_dump_file); | |
2859 | }); | |
2860 | ||
2861 | /* If function is inline, and we don't yet know whether to | |
2862 | compile it by itself, defer decision till end of compilation. | |
2863 | finish_compilation will call rest_of_compilation again | |
16411ea6 | 2864 | for those functions that need to be output. Also defer those |
ec6c615d RK |
2865 | functions that we are supposed to defer. We cannot defer |
2866 | functions containing nested functions since the nested function | |
2867 | data is in our non-saved obstack. */ | |
2868 | ||
2869 | if (! current_function_contains_functions | |
2870 | && (DECL_DEFER_OUTPUT (decl) | |
9deaf1b1 | 2871 | || (DECL_INLINE (decl) |
ec6c615d RK |
2872 | && ((! TREE_PUBLIC (decl) && ! TREE_ADDRESSABLE (decl) |
2873 | && ! flag_keep_inline_functions) | |
2874 | || DECL_EXTERNAL (decl))))) | |
4291d9c8 | 2875 | { |
951af26e JM |
2876 | DECL_DEFER_OUTPUT (decl) = 1; |
2877 | ||
2878 | /* If -Wreturn-type, we have to do a bit of compilation. */ | |
2879 | if (! warn_return_type) | |
937522b5 | 2880 | { |
951af26e JM |
2881 | #ifdef DWARF_DEBUGGING_INFO |
2882 | /* Generate the DWARF info for the "abstract" instance | |
2883 | of a function which we may later generate inlined and/or | |
2884 | out-of-line instances of. */ | |
2885 | if (write_symbols == DWARF_DEBUG) | |
2886 | { | |
2887 | set_decl_abstract_flags (decl, 1); | |
2888 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
2889 | set_decl_abstract_flags (decl, 0); | |
2890 | } | |
9a666dda JM |
2891 | #endif |
2892 | #ifdef DWARF2_DEBUGGING_INFO | |
2893 | /* Generate the DWARF2 info for the "abstract" instance | |
2894 | of a function which we may later generate inlined and/or | |
2895 | out-of-line instances of. */ | |
2896 | if (write_symbols == DWARF2_DEBUG) | |
2897 | { | |
2898 | set_decl_abstract_flags (decl, 1); | |
88dad228 | 2899 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
2900 | set_decl_abstract_flags (decl, 0); |
2901 | } | |
951af26e JM |
2902 | #endif |
2903 | TIMEVAR (integration_time, save_for_inline_nocopy (decl)); | |
ac02eb62 | 2904 | RTX_INTEGRATED_P (DECL_SAVED_INSNS (decl)) = inlineable; |
951af26e | 2905 | goto exit_rest_of_compilation; |
937522b5 | 2906 | } |
4291d9c8 RS |
2907 | } |
2908 | ||
8a958768 | 2909 | /* If we have to compile the function now, save its rtl and subdecls |
4291d9c8 | 2910 | so that its compilation will not affect what others get. */ |
9deaf1b1 | 2911 | if (inlineable || DECL_DEFER_OUTPUT (decl)) |
4291d9c8 | 2912 | { |
937522b5 RS |
2913 | #ifdef DWARF_DEBUGGING_INFO |
2914 | /* Generate the DWARF info for the "abstract" instance of | |
2915 | a function which we will generate an out-of-line instance | |
2916 | of almost immediately (and which we may also later generate | |
2917 | various inlined instances of). */ | |
2918 | if (write_symbols == DWARF_DEBUG) | |
2919 | { | |
2920 | set_decl_abstract_flags (decl, 1); | |
2921 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
2922 | set_decl_abstract_flags (decl, 0); | |
2923 | } | |
9a666dda JM |
2924 | #endif |
2925 | #ifdef DWARF2_DEBUGGING_INFO | |
2926 | /* Generate the DWARF2 info for the "abstract" instance of | |
2927 | a function which we will generate an out-of-line instance | |
2928 | of almost immediately (and which we may also later generate | |
2929 | various inlined instances of). */ | |
2930 | if (write_symbols == DWARF2_DEBUG) | |
2931 | { | |
2932 | set_decl_abstract_flags (decl, 1); | |
88dad228 | 2933 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
2934 | set_decl_abstract_flags (decl, 0); |
2935 | } | |
937522b5 | 2936 | #endif |
4291d9c8 | 2937 | saved_block_tree = DECL_INITIAL (decl); |
8a958768 | 2938 | saved_arguments = DECL_ARGUMENTS (decl); |
4291d9c8 | 2939 | TIMEVAR (integration_time, save_for_inline_copying (decl)); |
912c4289 | 2940 | RTX_INTEGRATED_P (DECL_SAVED_INSNS (decl)) = inlineable; |
4291d9c8 | 2941 | } |
4291d9c8 | 2942 | |
b8471b65 RK |
2943 | /* If specified extern inline but we aren't inlining it, we are |
2944 | done. */ | |
9deaf1b1 | 2945 | if (DECL_INLINE (decl) && DECL_EXTERNAL (decl)) |
b8471b65 RK |
2946 | goto exit_rest_of_compilation; |
2947 | } | |
07af9d16 | 2948 | |
951af26e JM |
2949 | if (! DECL_DEFER_OUTPUT (decl)) |
2950 | TREE_ASM_WRITTEN (decl) = 1; | |
4291d9c8 RS |
2951 | |
2952 | /* Now that integrate will no longer see our rtl, we need not distinguish | |
2953 | between the return value of this function and the return value of called | |
2954 | functions. */ | |
2955 | rtx_equal_function_value_matters = 0; | |
2956 | ||
32235b30 RS |
2957 | /* Don't return yet if -Wreturn-type; we need to do jump_optimize. */ |
2958 | if ((rtl_dump_and_exit || flag_syntax_only) && !warn_return_type) | |
4291d9c8 RS |
2959 | { |
2960 | goto exit_rest_of_compilation; | |
2961 | } | |
2962 | ||
89418a92 BK |
2963 | /* Add an unwinder for exception handling, if needed. |
2964 | This must be done before we finalize PIC code. */ | |
2965 | emit_unwinder (); | |
4291d9c8 RS |
2966 | |
2967 | #ifdef FINALIZE_PIC | |
2968 | /* If we are doing position-independent code generation, now | |
2969 | is the time to output special prologues and epilogues. | |
2970 | We do not want to do this earlier, because it just clutters | |
2971 | up inline functions with meaningless insns. */ | |
2972 | if (flag_pic) | |
2973 | FINALIZE_PIC; | |
2974 | #endif | |
2975 | ||
89418a92 BK |
2976 | /* From now on, allocate rtl in current_obstack, not in saveable_obstack. |
2977 | Note that that may have been done above, in save_for_inline_copying. | |
2978 | The call to resume_temporary_allocation near the end of this function | |
2979 | goes back to the usual state of affairs. This must be done after | |
2980 | we've built up any unwinders for exception handling, and done | |
2981 | the FINALIZE_PIC work, if necessary. */ | |
2982 | ||
2983 | rtl_in_current_obstack (); | |
3d195391 | 2984 | |
4291d9c8 RS |
2985 | insns = get_insns (); |
2986 | ||
2987 | /* Copy any shared structure that should not be shared. */ | |
2988 | ||
2989 | unshare_all_rtl (insns); | |
2990 | ||
2991 | /* Instantiate all virtual registers. */ | |
2992 | ||
2993 | instantiate_virtual_regs (current_function_decl, get_insns ()); | |
2994 | ||
2995 | /* See if we have allocated stack slots that are not directly addressable. | |
2996 | If so, scan all the insns and create explicit address computation | |
2997 | for all references to such slots. */ | |
2998 | /* fixup_stack_slots (); */ | |
2999 | ||
3d195391 MS |
3000 | /* Find all the EH handlers. */ |
3001 | find_exception_handler_labels (); | |
3002 | ||
cc4e79d8 JL |
3003 | /* Always do one jump optimization pass to ensure that JUMP_LABEL fields |
3004 | are initialized and to compute whether control can drop off the end | |
3005 | of the function. */ | |
3006 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3007 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1)); | |
4291d9c8 | 3008 | |
32235b30 | 3009 | /* Now is when we stop if -fsyntax-only and -Wreturn-type. */ |
951af26e | 3010 | if (rtl_dump_and_exit || flag_syntax_only || DECL_DEFER_OUTPUT (decl)) |
32235b30 RS |
3011 | goto exit_rest_of_compilation; |
3012 | ||
4291d9c8 RS |
3013 | /* Dump rtl code after jump, if we are doing that. */ |
3014 | ||
3015 | if (jump_opt_dump) | |
3016 | TIMEVAR (dump_time, | |
3017 | { | |
3018 | fprintf (jump_opt_dump_file, "\n;; Function %s\n\n", | |
3019 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3020 | print_rtl (jump_opt_dump_file, insns); | |
3021 | fflush (jump_opt_dump_file); | |
3022 | }); | |
3023 | ||
3024 | /* Perform common subexpression elimination. | |
3025 | Nonzero value from `cse_main' means that jumps were simplified | |
3026 | and some code may now be unreachable, so do | |
3027 | jump optimization again. */ | |
3028 | ||
3029 | if (cse_dump) | |
3030 | TIMEVAR (dump_time, | |
3031 | { | |
3032 | fprintf (cse_dump_file, "\n;; Function %s\n\n", | |
3033 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3034 | }); | |
3035 | ||
3036 | if (optimize > 0) | |
3037 | { | |
3038 | TIMEVAR (cse_time, reg_scan (insns, max_reg_num (), 1)); | |
3039 | ||
3040 | if (flag_thread_jumps) | |
3041 | /* Hacks by tiemann & kenner. */ | |
6f606d63 | 3042 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 1)); |
4291d9c8 RS |
3043 | |
3044 | TIMEVAR (cse_time, tem = cse_main (insns, max_reg_num (), | |
3045 | 0, cse_dump_file)); | |
3046 | TIMEVAR (cse_time, delete_dead_from_cse (insns, max_reg_num ())); | |
3047 | ||
534bfae4 | 3048 | if (tem || optimize > 1) |
4291d9c8 RS |
3049 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0)); |
3050 | } | |
3051 | ||
3052 | /* Dump rtl code after cse, if we are doing that. */ | |
3053 | ||
3054 | if (cse_dump) | |
3055 | TIMEVAR (dump_time, | |
3056 | { | |
3057 | print_rtl (cse_dump_file, insns); | |
3058 | fflush (cse_dump_file); | |
3059 | }); | |
3060 | ||
3061 | if (loop_dump) | |
3062 | TIMEVAR (dump_time, | |
3063 | { | |
3064 | fprintf (loop_dump_file, "\n;; Function %s\n\n", | |
3065 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3066 | }); | |
3067 | ||
3068 | /* Move constant computations out of loops. */ | |
3069 | ||
3070 | if (optimize > 0) | |
3071 | { | |
3072 | TIMEVAR (loop_time, | |
3073 | { | |
37366632 | 3074 | loop_optimize (insns, loop_dump_file); |
4291d9c8 RS |
3075 | }); |
3076 | } | |
3077 | ||
3078 | /* Dump rtl code after loop opt, if we are doing that. */ | |
3079 | ||
3080 | if (loop_dump) | |
3081 | TIMEVAR (dump_time, | |
3082 | { | |
3083 | print_rtl (loop_dump_file, insns); | |
3084 | fflush (loop_dump_file); | |
3085 | }); | |
3086 | ||
3087 | if (cse2_dump) | |
3088 | TIMEVAR (dump_time, | |
3089 | { | |
3090 | fprintf (cse2_dump_file, "\n;; Function %s\n\n", | |
3091 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3092 | }); | |
3093 | ||
3094 | if (optimize > 0 && flag_rerun_cse_after_loop) | |
3095 | { | |
44333223 JL |
3096 | /* Running another jump optimization pass before the second |
3097 | cse pass sometimes simplifies the RTL enough to allow | |
9e9b48a4 DE |
3098 | the second CSE pass to do a better job. Jump_optimize can change |
3099 | max_reg_num so we must rerun reg_scan afterwards. | |
3100 | ??? Rework to not call reg_scan so often. */ | |
3101 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
44333223 | 3102 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 1)); |
4291d9c8 | 3103 | |
9e9b48a4 | 3104 | TIMEVAR (cse2_time, reg_scan (insns, max_reg_num (), 0)); |
4291d9c8 RS |
3105 | TIMEVAR (cse2_time, tem = cse_main (insns, max_reg_num (), |
3106 | 1, cse2_dump_file)); | |
3107 | if (tem) | |
3108 | TIMEVAR (jump_time, jump_optimize (insns, 0, 0, 0)); | |
3109 | } | |
3110 | ||
3111 | if (optimize > 0 && flag_thread_jumps) | |
c2f006ec RK |
3112 | { |
3113 | /* This pass of jump threading straightens out code | |
3114 | that was kinked by loop optimization. */ | |
3115 | TIMEVAR (jump_time, reg_scan (insns, max_reg_num (), 0)); | |
3116 | TIMEVAR (jump_time, thread_jumps (insns, max_reg_num (), 0)); | |
3117 | } | |
4291d9c8 RS |
3118 | /* Dump rtl code after cse, if we are doing that. */ |
3119 | ||
3120 | if (cse2_dump) | |
3121 | TIMEVAR (dump_time, | |
3122 | { | |
3123 | print_rtl (cse2_dump_file, insns); | |
3124 | fflush (cse2_dump_file); | |
3125 | }); | |
3126 | ||
3127 | /* We are no longer anticipating cse in this function, at least. */ | |
3128 | ||
3129 | cse_not_expected = 1; | |
3130 | ||
3131 | /* Now we choose between stupid (pcc-like) register allocation | |
3132 | (if we got the -noreg switch and not -opt) | |
3133 | and smart register allocation. */ | |
3134 | ||
3135 | if (optimize > 0) /* Stupid allocation probably won't work */ | |
3136 | obey_regdecls = 0; /* if optimizations being done. */ | |
3137 | ||
3138 | regclass_init (); | |
3139 | ||
3140 | /* Print function header into flow dump now | |
3141 | because doing the flow analysis makes some of the dump. */ | |
3142 | ||
3143 | if (flow_dump) | |
3144 | TIMEVAR (dump_time, | |
3145 | { | |
3146 | fprintf (flow_dump_file, "\n;; Function %s\n\n", | |
3147 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3148 | }); | |
3149 | ||
3150 | if (obey_regdecls) | |
3151 | { | |
3152 | TIMEVAR (flow_time, | |
3153 | { | |
3154 | regclass (insns, max_reg_num ()); | |
3155 | stupid_life_analysis (insns, max_reg_num (), | |
3156 | flow_dump_file); | |
3157 | }); | |
3158 | } | |
3159 | else | |
3160 | { | |
3161 | /* Do control and data flow analysis, | |
3162 | and write some of the results to dump file. */ | |
3163 | ||
3164 | TIMEVAR (flow_time, flow_analysis (insns, max_reg_num (), | |
3165 | flow_dump_file)); | |
3166 | if (warn_uninitialized) | |
3167 | { | |
3168 | uninitialized_vars_warning (DECL_INITIAL (decl)); | |
3169 | setjmp_args_warning (); | |
3170 | } | |
3171 | } | |
3172 | ||
3173 | /* Dump rtl after flow analysis. */ | |
3174 | ||
3175 | if (flow_dump) | |
3176 | TIMEVAR (dump_time, | |
3177 | { | |
3178 | print_rtl (flow_dump_file, insns); | |
3179 | fflush (flow_dump_file); | |
3180 | }); | |
3181 | ||
3182 | /* If -opt, try combining insns through substitution. */ | |
3183 | ||
3184 | if (optimize > 0) | |
3185 | TIMEVAR (combine_time, combine_instructions (insns, max_reg_num ())); | |
3186 | ||
3187 | /* Dump rtl code after insn combination. */ | |
3188 | ||
3189 | if (combine_dump) | |
3190 | TIMEVAR (dump_time, | |
3191 | { | |
3192 | fprintf (combine_dump_file, "\n;; Function %s\n\n", | |
3193 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3194 | dump_combine_stats (combine_dump_file); | |
3195 | print_rtl (combine_dump_file, insns); | |
3196 | fflush (combine_dump_file); | |
3197 | }); | |
3198 | ||
3199 | /* Print function header into sched dump now | |
3200 | because doing the sched analysis makes some of the dump. */ | |
3201 | ||
3202 | if (sched_dump) | |
3203 | TIMEVAR (dump_time, | |
3204 | { | |
3205 | fprintf (sched_dump_file, "\n;; Function %s\n\n", | |
3206 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3207 | }); | |
3208 | ||
3209 | if (optimize > 0 && flag_schedule_insns) | |
3210 | { | |
3211 | /* Do control and data sched analysis, | |
3212 | and write some of the results to dump file. */ | |
3213 | ||
3214 | TIMEVAR (sched_time, schedule_insns (sched_dump_file)); | |
3215 | } | |
3216 | ||
3217 | /* Dump rtl after instruction scheduling. */ | |
3218 | ||
3219 | if (sched_dump) | |
3220 | TIMEVAR (dump_time, | |
3221 | { | |
3222 | print_rtl (sched_dump_file, insns); | |
3223 | fflush (sched_dump_file); | |
3224 | }); | |
3225 | ||
3226 | /* Unless we did stupid register allocation, | |
3227 | allocate pseudo-regs that are used only within 1 basic block. */ | |
3228 | ||
3229 | if (!obey_regdecls) | |
3230 | TIMEVAR (local_alloc_time, | |
3231 | { | |
3232 | regclass (insns, max_reg_num ()); | |
3233 | local_alloc (); | |
3234 | }); | |
3235 | ||
3236 | /* Dump rtl code after allocating regs within basic blocks. */ | |
3237 | ||
3238 | if (local_reg_dump) | |
3239 | TIMEVAR (dump_time, | |
3240 | { | |
3241 | fprintf (local_reg_dump_file, "\n;; Function %s\n\n", | |
3242 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3243 | dump_flow_info (local_reg_dump_file); | |
3244 | dump_local_alloc (local_reg_dump_file); | |
3245 | print_rtl (local_reg_dump_file, insns); | |
3246 | fflush (local_reg_dump_file); | |
3247 | }); | |
3248 | ||
3249 | if (global_reg_dump) | |
3250 | TIMEVAR (dump_time, | |
3251 | fprintf (global_reg_dump_file, "\n;; Function %s\n\n", | |
3252 | IDENTIFIER_POINTER (DECL_NAME (decl)))); | |
3253 | ||
bf8b4985 RK |
3254 | /* Save the last label number used so far, so reorg can tell |
3255 | when it's safe to kill spill regs. */ | |
3256 | max_label_num_after_reload = max_label_num (); | |
3257 | ||
4291d9c8 RS |
3258 | /* Unless we did stupid register allocation, |
3259 | allocate remaining pseudo-regs, then do the reload pass | |
3260 | fixing up any insns that are invalid. */ | |
3261 | ||
3262 | TIMEVAR (global_alloc_time, | |
3263 | { | |
3264 | if (!obey_regdecls) | |
37366632 | 3265 | failure = global_alloc (global_reg_dump_file); |
4291d9c8 | 3266 | else |
37366632 | 3267 | failure = reload (insns, 0, global_reg_dump_file); |
4291d9c8 RS |
3268 | }); |
3269 | ||
3270 | if (global_reg_dump) | |
3271 | TIMEVAR (dump_time, | |
3272 | { | |
3273 | dump_global_regs (global_reg_dump_file); | |
3274 | print_rtl (global_reg_dump_file, insns); | |
3275 | fflush (global_reg_dump_file); | |
3276 | }); | |
3277 | ||
ab40ad2b RS |
3278 | if (failure) |
3279 | goto exit_rest_of_compilation; | |
3280 | ||
4291d9c8 RS |
3281 | reload_completed = 1; |
3282 | ||
bdac5f58 TW |
3283 | /* On some machines, the prologue and epilogue code, or parts thereof, |
3284 | can be represented as RTL. Doing so lets us schedule insns between | |
3285 | it and the rest of the code and also allows delayed branch | |
3286 | scheduling to operate in the epilogue. */ | |
3287 | ||
3288 | thread_prologue_and_epilogue_insns (insns); | |
3289 | ||
4291d9c8 RS |
3290 | if (optimize > 0 && flag_schedule_insns_after_reload) |
3291 | { | |
3292 | if (sched2_dump) | |
3293 | TIMEVAR (dump_time, | |
3294 | { | |
3295 | fprintf (sched2_dump_file, "\n;; Function %s\n\n", | |
3296 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3297 | }); | |
3298 | ||
3299 | /* Do control and data sched analysis again, | |
3300 | and write some more of the results to dump file. */ | |
3301 | ||
3302 | TIMEVAR (sched2_time, schedule_insns (sched2_dump_file)); | |
3303 | ||
3304 | /* Dump rtl after post-reorder instruction scheduling. */ | |
3305 | ||
3306 | if (sched2_dump) | |
3307 | TIMEVAR (dump_time, | |
3308 | { | |
3309 | print_rtl (sched2_dump_file, insns); | |
3310 | fflush (sched2_dump_file); | |
3311 | }); | |
3312 | } | |
3313 | ||
3314 | #ifdef LEAF_REGISTERS | |
3315 | leaf_function = 0; | |
3316 | if (optimize > 0 && only_leaf_regs_used () && leaf_function_p ()) | |
ab40ad2b | 3317 | leaf_function = 1; |
4291d9c8 RS |
3318 | #endif |
3319 | ||
3320 | /* One more attempt to remove jumps to .+1 | |
3321 | left by dead-store-elimination. | |
3322 | Also do cross-jumping this time | |
3323 | and delete no-op move insns. */ | |
3324 | ||
3325 | if (optimize > 0) | |
3326 | { | |
3327 | TIMEVAR (jump_time, jump_optimize (insns, 1, 1, 0)); | |
3328 | } | |
3329 | ||
3330 | /* Dump rtl code after jump, if we are doing that. */ | |
3331 | ||
3332 | if (jump2_opt_dump) | |
3333 | TIMEVAR (dump_time, | |
3334 | { | |
3335 | fprintf (jump2_opt_dump_file, "\n;; Function %s\n\n", | |
3336 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3337 | print_rtl (jump2_opt_dump_file, insns); | |
3338 | fflush (jump2_opt_dump_file); | |
3339 | }); | |
3340 | ||
2c65021a RK |
3341 | /* If a machine dependent reorganization is needed, call it. */ |
3342 | #ifdef MACHINE_DEPENDENT_REORG | |
3343 | MACHINE_DEPENDENT_REORG (insns); | |
3344 | #endif | |
3345 | ||
4291d9c8 | 3346 | /* If a scheduling pass for delayed branches is to be done, |
0f41302f | 3347 | call the scheduling code. */ |
4291d9c8 RS |
3348 | |
3349 | #ifdef DELAY_SLOTS | |
3350 | if (optimize > 0 && flag_delayed_branch) | |
3351 | { | |
3352 | TIMEVAR (dbr_sched_time, dbr_schedule (insns, dbr_sched_dump_file)); | |
3353 | if (dbr_sched_dump) | |
3354 | { | |
3355 | TIMEVAR (dump_time, | |
3356 | { | |
3357 | fprintf (dbr_sched_dump_file, "\n;; Function %s\n\n", | |
3358 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3359 | print_rtl (dbr_sched_dump_file, insns); | |
3360 | fflush (dbr_sched_dump_file); | |
3361 | }); | |
3362 | } | |
3363 | } | |
3364 | #endif | |
3365 | ||
d0c874f6 TG |
3366 | /* Shorten branches. */ |
3367 | TIMEVAR (shorten_branch_time, | |
3368 | { | |
3369 | shorten_branches (get_insns ()); | |
3370 | }); | |
4291d9c8 RS |
3371 | |
3372 | #ifdef STACK_REGS | |
3373 | TIMEVAR (stack_reg_time, reg_to_stack (insns, stack_reg_dump_file)); | |
3374 | if (stack_reg_dump) | |
3375 | { | |
3376 | TIMEVAR (dump_time, | |
3377 | { | |
3378 | fprintf (stack_reg_dump_file, "\n;; Function %s\n\n", | |
3379 | IDENTIFIER_POINTER (DECL_NAME (decl))); | |
3380 | print_rtl (stack_reg_dump_file, insns); | |
3381 | fflush (stack_reg_dump_file); | |
3382 | }); | |
3383 | } | |
3384 | #endif | |
3385 | ||
3386 | /* Now turn the rtl into assembler code. */ | |
3387 | ||
3388 | TIMEVAR (final_time, | |
3389 | { | |
3390 | rtx x; | |
3391 | char *fnname; | |
3392 | ||
3393 | /* Get the function's name, as described by its RTL. | |
3394 | This may be different from the DECL_NAME name used | |
3395 | in the source file. */ | |
3396 | ||
3397 | x = DECL_RTL (decl); | |
3398 | if (GET_CODE (x) != MEM) | |
3399 | abort (); | |
3400 | x = XEXP (x, 0); | |
3401 | if (GET_CODE (x) != SYMBOL_REF) | |
3402 | abort (); | |
3403 | fnname = XSTR (x, 0); | |
3404 | ||
3405 | assemble_start_function (decl, fnname); | |
3406 | final_start_function (insns, asm_out_file, optimize); | |
3407 | final (insns, asm_out_file, optimize, 0); | |
3408 | final_end_function (insns, asm_out_file, optimize); | |
3409 | assemble_end_function (decl, fnname); | |
3410 | fflush (asm_out_file); | |
3411 | }); | |
3412 | ||
3413 | /* Write DBX symbols if requested */ | |
3414 | ||
3415 | /* Note that for those inline functions where we don't initially | |
3416 | know for certain that we will be generating an out-of-line copy, | |
3417 | the first invocation of this routine (rest_of_compilation) will | |
3418 | skip over this code by doing a `goto exit_rest_of_compilation;'. | |
3419 | Later on, finish_compilation will call rest_of_compilation again | |
3420 | for those inline functions that need to have out-of-line copies | |
3421 | generated. During that call, we *will* be routed past here. */ | |
3422 | ||
3423 | #ifdef DBX_DEBUGGING_INFO | |
3424 | if (write_symbols == DBX_DEBUG) | |
3425 | TIMEVAR (symout_time, dbxout_function (decl)); | |
3426 | #endif | |
3427 | ||
3428 | #ifdef DWARF_DEBUGGING_INFO | |
3429 | if (write_symbols == DWARF_DEBUG) | |
3430 | TIMEVAR (symout_time, dwarfout_file_scope_decl (decl, 0)); | |
3431 | #endif | |
3432 | ||
9a666dda JM |
3433 | #ifdef DWARF2_DEBUGGING_INFO |
3434 | if (write_symbols == DWARF2_DEBUG) | |
88dad228 | 3435 | TIMEVAR (symout_time, dwarf2out_decl (decl)); |
9a666dda JM |
3436 | #endif |
3437 | ||
4291d9c8 RS |
3438 | exit_rest_of_compilation: |
3439 | ||
f246a305 RS |
3440 | /* In case the function was not output, |
3441 | don't leave any temporary anonymous types | |
3442 | queued up for sdb output. */ | |
3443 | #ifdef SDB_DEBUGGING_INFO | |
3444 | if (write_symbols == SDB_DEBUG) | |
37366632 | 3445 | sdbout_types (NULL_TREE); |
f246a305 RS |
3446 | #endif |
3447 | ||
8a958768 RS |
3448 | /* Put back the tree of subblocks and list of arguments |
3449 | from before we copied them. | |
4291d9c8 RS |
3450 | Code generation and the output of debugging info may have modified |
3451 | the copy, but the original is unchanged. */ | |
3452 | ||
3453 | if (saved_block_tree != 0) | |
fb19c456 JM |
3454 | { |
3455 | DECL_INITIAL (decl) = saved_block_tree; | |
3456 | DECL_ARGUMENTS (decl) = saved_arguments; | |
3457 | DECL_ABSTRACT_ORIGIN (decl) = NULL_TREE; | |
3458 | } | |
4291d9c8 RS |
3459 | |
3460 | reload_completed = 0; | |
3461 | ||
9fe320d7 RK |
3462 | /* Clear out the insn_length contents now that they are no longer valid. */ |
3463 | init_insn_lengths (); | |
3464 | ||
4291d9c8 RS |
3465 | /* Clear out the real_constant_chain before some of the rtx's |
3466 | it runs through become garbage. */ | |
3467 | ||
3468 | clear_const_double_mem (); | |
3469 | ||
3470 | /* Cancel the effect of rtl_in_current_obstack. */ | |
3471 | ||
3472 | resume_temporary_allocation (); | |
3473 | ||
adcd38c9 RK |
3474 | /* Show no temporary slots allocated. */ |
3475 | ||
3476 | init_temp_slots (); | |
3477 | ||
4291d9c8 RS |
3478 | /* The parsing time is all the time spent in yyparse |
3479 | *except* what is spent in this function. */ | |
3480 | ||
3481 | parse_time -= get_run_time () - start_time; | |
3482 | } | |
3483 | \f | |
3484 | /* Entry point of cc1/c++. Decode command args, then call compile_file. | |
3485 | Exit code is 35 if can't open files, 34 if fatal error, | |
3486 | 33 if had nonfatal errors, else success. */ | |
3487 | ||
3488 | int | |
3489 | main (argc, argv, envp) | |
3490 | int argc; | |
3491 | char **argv; | |
3492 | char **envp; | |
3493 | { | |
3494 | register int i; | |
3495 | char *filename = 0; | |
3496 | int flag_print_mem = 0; | |
3497 | int version_flag = 0; | |
3498 | char *p; | |
3499 | ||
3500 | /* save in case md file wants to emit args as a comment. */ | |
3501 | save_argc = argc; | |
3502 | save_argv = argv; | |
3503 | ||
3504 | p = argv[0] + strlen (argv[0]); | |
128373ac RK |
3505 | while (p != argv[0] && p[-1] != '/' |
3506 | #ifdef DIR_SEPARATOR | |
3507 | && p[-1] != DIR_SEPARATOR | |
3508 | #endif | |
3509 | ) | |
3510 | --p; | |
4291d9c8 RS |
3511 | progname = p; |
3512 | ||
3513 | #ifdef RLIMIT_STACK | |
3514 | /* Get rid of any avoidable limit on stack size. */ | |
3515 | { | |
3516 | struct rlimit rlim; | |
3517 | ||
0f41302f | 3518 | /* Set the stack limit huge so that alloca does not fail. */ |
4291d9c8 RS |
3519 | getrlimit (RLIMIT_STACK, &rlim); |
3520 | rlim.rlim_cur = rlim.rlim_max; | |
3521 | setrlimit (RLIMIT_STACK, &rlim); | |
3522 | } | |
3523 | #endif /* RLIMIT_STACK */ | |
3524 | ||
3525 | signal (SIGFPE, float_signal); | |
3526 | ||
935d4b07 | 3527 | #ifdef SIGPIPE |
4291d9c8 | 3528 | signal (SIGPIPE, pipe_closed); |
935d4b07 | 3529 | #endif |
4291d9c8 RS |
3530 | |
3531 | decl_printable_name = decl_name; | |
3532 | lang_expand_expr = (struct rtx_def *(*)()) do_abort; | |
3533 | ||
3534 | /* Initialize whether `char' is signed. */ | |
3535 | flag_signed_char = DEFAULT_SIGNED_CHAR; | |
3536 | #ifdef DEFAULT_SHORT_ENUMS | |
3537 | /* Initialize how much space enums occupy, by default. */ | |
3538 | flag_short_enums = DEFAULT_SHORT_ENUMS; | |
3539 | #endif | |
3540 | ||
3541 | /* Scan to see what optimization level has been specified. That will | |
3542 | determine the default value of many flags. */ | |
3543 | for (i = 1; i < argc; i++) | |
3544 | { | |
3545 | if (!strcmp (argv[i], "-O")) | |
3546 | { | |
3547 | optimize = 1; | |
3548 | } | |
3549 | else if (argv[i][0] == '-' && argv[i][1] == 'O') | |
3550 | { | |
3551 | /* Handle -O2, -O3, -O69, ... */ | |
3552 | char *p = &argv[i][2]; | |
3553 | int c; | |
3554 | ||
3555 | while (c = *p++) | |
3556 | if (! (c >= '0' && c <= '9')) | |
3557 | break; | |
3558 | if (c == 0) | |
3559 | optimize = atoi (&argv[i][2]); | |
3560 | } | |
3561 | } | |
3562 | ||
3563 | obey_regdecls = (optimize == 0); | |
f246a305 RS |
3564 | if (optimize == 0) |
3565 | { | |
3566 | flag_no_inline = 1; | |
3567 | warn_inline = 0; | |
3568 | } | |
4291d9c8 RS |
3569 | |
3570 | if (optimize >= 1) | |
3571 | { | |
6731a3e3 | 3572 | flag_defer_pop = 1; |
4291d9c8 RS |
3573 | flag_thread_jumps = 1; |
3574 | #ifdef DELAY_SLOTS | |
3575 | flag_delayed_branch = 1; | |
7e89c3a3 RK |
3576 | #endif |
3577 | #ifdef CAN_DEBUG_WITHOUT_FP | |
3578 | flag_omit_frame_pointer = 1; | |
4291d9c8 RS |
3579 | #endif |
3580 | } | |
3581 | ||
3582 | if (optimize >= 2) | |
3583 | { | |
3584 | flag_cse_follow_jumps = 1; | |
8b3686ed | 3585 | flag_cse_skip_blocks = 1; |
4291d9c8 RS |
3586 | flag_expensive_optimizations = 1; |
3587 | flag_strength_reduce = 1; | |
3588 | flag_rerun_cse_after_loop = 1; | |
ac266247 | 3589 | flag_caller_saves = 1; |
4ac8e06e | 3590 | flag_force_mem = 1; |
4291d9c8 RS |
3591 | #ifdef INSN_SCHEDULING |
3592 | flag_schedule_insns = 1; | |
3593 | flag_schedule_insns_after_reload = 1; | |
3594 | #endif | |
3595 | } | |
3596 | ||
7e89c3a3 RK |
3597 | if (optimize >= 3) |
3598 | { | |
3599 | flag_inline_functions = 1; | |
3600 | } | |
3601 | ||
c1da383f DE |
3602 | /* Initialize target_flags before OPTIMIZATION_OPTIONS so the latter can |
3603 | modify it. */ | |
3604 | target_flags = 0; | |
3605 | set_target_switch (""); | |
3606 | ||
4291d9c8 RS |
3607 | #ifdef OPTIMIZATION_OPTIONS |
3608 | /* Allow default optimizations to be specified on a per-machine basis. */ | |
3609 | OPTIMIZATION_OPTIONS (optimize); | |
3610 | #endif | |
3611 | ||
3612 | /* Initialize register usage now so switches may override. */ | |
3613 | init_reg_sets (); | |
3614 | ||
4291d9c8 RS |
3615 | for (i = 1; i < argc; i++) |
3616 | { | |
b99933c7 RS |
3617 | int j; |
3618 | /* If this is a language-specific option, | |
3619 | decode it in a language-specific way. */ | |
3620 | for (j = 0; lang_options[j] != 0; j++) | |
7e6c0864 RK |
3621 | if (!strncmp (argv[i], lang_options[j], |
3622 | strlen (lang_options[j]))) | |
b99933c7 RS |
3623 | break; |
3624 | if (lang_options[j] != 0) | |
3625 | /* If the option is valid for *some* language, | |
3626 | treat it as valid even if this language doesn't understand it. */ | |
3627 | lang_decode_option (argv[i]); | |
3628 | else if (argv[i][0] == '-' && argv[i][1] != 0) | |
4291d9c8 RS |
3629 | { |
3630 | register char *str = argv[i] + 1; | |
3631 | if (str[0] == 'Y') | |
3632 | str++; | |
3633 | ||
3634 | if (str[0] == 'm') | |
3635 | set_target_switch (&str[1]); | |
3636 | else if (!strcmp (str, "dumpbase")) | |
3637 | { | |
3638 | dump_base_name = argv[++i]; | |
3639 | } | |
3640 | else if (str[0] == 'd') | |
3641 | { | |
3642 | register char *p = &str[1]; | |
3643 | while (*p) | |
3644 | switch (*p++) | |
3645 | { | |
3646 | case 'a': | |
3647 | combine_dump = 1; | |
3648 | dbr_sched_dump = 1; | |
3649 | flow_dump = 1; | |
3650 | global_reg_dump = 1; | |
3651 | jump_opt_dump = 1; | |
3652 | jump2_opt_dump = 1; | |
3653 | local_reg_dump = 1; | |
3654 | loop_dump = 1; | |
3655 | rtl_dump = 1; | |
3656 | cse_dump = 1, cse2_dump = 1; | |
3657 | sched_dump = 1; | |
3658 | sched2_dump = 1; | |
3659 | stack_reg_dump = 1; | |
3660 | break; | |
3661 | case 'k': | |
3662 | stack_reg_dump = 1; | |
3663 | break; | |
3664 | case 'c': | |
3665 | combine_dump = 1; | |
3666 | break; | |
3667 | case 'd': | |
3668 | dbr_sched_dump = 1; | |
3669 | break; | |
3670 | case 'f': | |
3671 | flow_dump = 1; | |
3672 | break; | |
3673 | case 'g': | |
3674 | global_reg_dump = 1; | |
3675 | break; | |
3676 | case 'j': | |
3677 | jump_opt_dump = 1; | |
3678 | break; | |
3679 | case 'J': | |
3680 | jump2_opt_dump = 1; | |
3681 | break; | |
3682 | case 'l': | |
3683 | local_reg_dump = 1; | |
3684 | break; | |
3685 | case 'L': | |
3686 | loop_dump = 1; | |
3687 | break; | |
3688 | case 'm': | |
3689 | flag_print_mem = 1; | |
3690 | break; | |
3691 | case 'p': | |
3692 | flag_print_asm_name = 1; | |
3693 | break; | |
3694 | case 'r': | |
3695 | rtl_dump = 1; | |
3696 | break; | |
3697 | case 's': | |
3698 | cse_dump = 1; | |
3699 | break; | |
3700 | case 't': | |
3701 | cse2_dump = 1; | |
3702 | break; | |
3703 | case 'S': | |
3704 | sched_dump = 1; | |
3705 | break; | |
3706 | case 'R': | |
3707 | sched2_dump = 1; | |
3708 | break; | |
3709 | case 'y': | |
3710 | set_yydebug (1); | |
3711 | break; | |
4291d9c8 RS |
3712 | case 'x': |
3713 | rtl_dump_and_exit = 1; | |
3714 | break; | |
3d5cdd42 DE |
3715 | case 'A': |
3716 | flag_debug_asm = 1; | |
3717 | break; | |
4291d9c8 RS |
3718 | } |
3719 | } | |
3720 | else if (str[0] == 'f') | |
3721 | { | |
4291d9c8 RS |
3722 | register char *p = &str[1]; |
3723 | int found = 0; | |
3724 | ||
3725 | /* Some kind of -f option. | |
3726 | P's value is the option sans `-f'. | |
3727 | Search for it in the table of options. */ | |
3728 | ||
3729 | for (j = 0; | |
3730 | !found && j < sizeof (f_options) / sizeof (f_options[0]); | |
3731 | j++) | |
3732 | { | |
3733 | if (!strcmp (p, f_options[j].string)) | |
3734 | { | |
3735 | *f_options[j].variable = f_options[j].on_value; | |
3736 | /* A goto here would be cleaner, | |
3737 | but breaks the vax pcc. */ | |
3738 | found = 1; | |
3739 | } | |
3740 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
3741 | && ! strcmp (p+3, f_options[j].string)) | |
3742 | { | |
3743 | *f_options[j].variable = ! f_options[j].on_value; | |
3744 | found = 1; | |
3745 | } | |
3746 | } | |
3747 | ||
3748 | if (found) | |
3749 | ; | |
3750 | else if (!strncmp (p, "fixed-", 6)) | |
3751 | fix_register (&p[6], 1, 1); | |
3752 | else if (!strncmp (p, "call-used-", 10)) | |
3753 | fix_register (&p[10], 0, 1); | |
3754 | else if (!strncmp (p, "call-saved-", 11)) | |
3755 | fix_register (&p[11], 0, 0); | |
b99933c7 | 3756 | else |
4291d9c8 RS |
3757 | error ("Invalid option `%s'", argv[i]); |
3758 | } | |
3759 | else if (str[0] == 'O') | |
3760 | { | |
3761 | register char *p = str+1; | |
3762 | while (*p && *p >= '0' && *p <= '9') | |
3763 | p++; | |
3764 | if (*p == '\0') | |
3765 | ; | |
3766 | else | |
3767 | error ("Invalid option `%s'", argv[i]); | |
3768 | } | |
3769 | else if (!strcmp (str, "pedantic")) | |
3770 | pedantic = 1; | |
3771 | else if (!strcmp (str, "pedantic-errors")) | |
3772 | flag_pedantic_errors = pedantic = 1; | |
4291d9c8 RS |
3773 | else if (!strcmp (str, "quiet")) |
3774 | quiet_flag = 1; | |
3775 | else if (!strcmp (str, "version")) | |
3776 | version_flag = 1; | |
3777 | else if (!strcmp (str, "w")) | |
3778 | inhibit_warnings = 1; | |
3779 | else if (!strcmp (str, "W")) | |
3780 | { | |
3781 | extra_warnings = 1; | |
fa1a4543 RS |
3782 | /* We save the value of warn_uninitialized, since if they put |
3783 | -Wuninitialized on the command line, we need to generate a | |
3784 | warning about not using it without also specifying -O. */ | |
3785 | if (warn_uninitialized != 1) | |
3786 | warn_uninitialized = 2; | |
4291d9c8 RS |
3787 | } |
3788 | else if (str[0] == 'W') | |
3789 | { | |
4291d9c8 RS |
3790 | register char *p = &str[1]; |
3791 | int found = 0; | |
3792 | ||
3793 | /* Some kind of -W option. | |
3794 | P's value is the option sans `-W'. | |
3795 | Search for it in the table of options. */ | |
3796 | ||
3797 | for (j = 0; | |
3798 | !found && j < sizeof (W_options) / sizeof (W_options[0]); | |
3799 | j++) | |
3800 | { | |
3801 | if (!strcmp (p, W_options[j].string)) | |
3802 | { | |
3803 | *W_options[j].variable = W_options[j].on_value; | |
3804 | /* A goto here would be cleaner, | |
3805 | but breaks the vax pcc. */ | |
3806 | found = 1; | |
3807 | } | |
3808 | if (p[0] == 'n' && p[1] == 'o' && p[2] == '-' | |
3809 | && ! strcmp (p+3, W_options[j].string)) | |
3810 | { | |
3811 | *W_options[j].variable = ! W_options[j].on_value; | |
3812 | found = 1; | |
3813 | } | |
3814 | } | |
3815 | ||
3816 | if (found) | |
3817 | ; | |
3818 | else if (!strncmp (p, "id-clash-", 9)) | |
3819 | { | |
3820 | char *endp = p + 9; | |
3821 | ||
3822 | while (*endp) | |
3823 | { | |
3824 | if (*endp >= '0' && *endp <= '9') | |
3825 | endp++; | |
3826 | else | |
7085b873 RS |
3827 | { |
3828 | error ("Invalid option `%s'", argv[i]); | |
3829 | goto id_clash_lose; | |
3830 | } | |
4291d9c8 RS |
3831 | } |
3832 | warn_id_clash = 1; | |
3833 | id_clash_len = atoi (str + 10); | |
7085b873 | 3834 | id_clash_lose: ; |
4291d9c8 | 3835 | } |
b51e9c62 RK |
3836 | else if (!strncmp (p, "larger-than-", 12)) |
3837 | { | |
3838 | char *endp = p + 12; | |
3839 | ||
3840 | while (*endp) | |
3841 | { | |
3842 | if (*endp >= '0' && *endp <= '9') | |
3843 | endp++; | |
3844 | else | |
3845 | { | |
3846 | error ("Invalid option `%s'", argv[i]); | |
3847 | goto larger_than_lose; | |
3848 | } | |
3849 | } | |
3850 | warn_larger_than = 1; | |
3851 | larger_than_size = atoi (str + 13); | |
3852 | larger_than_lose: ; | |
3853 | } | |
4291d9c8 RS |
3854 | else |
3855 | error ("Invalid option `%s'", argv[i]); | |
3856 | } | |
3857 | else if (!strcmp (str, "p")) | |
ca695ac9 | 3858 | { |
c2d12c8b | 3859 | profile_flag = 1; |
ca695ac9 | 3860 | } |
4291d9c8 RS |
3861 | else if (!strcmp (str, "a")) |
3862 | { | |
3863 | #if !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
3864 | warning ("`-a' option (basic block profile) not supported"); | |
3865 | #else | |
ec6c615d RK |
3866 | profile_block_flag = (profile_block_flag < 2) ? 1 : 3; |
3867 | #endif | |
3868 | } | |
3869 | else if (!strcmp (str, "ax")) | |
3870 | { | |
3871 | #if !defined (FUNCTION_BLOCK_PROFILER_EXIT) || !defined (BLOCK_PROFILER) || !defined (FUNCTION_BLOCK_PROFILER) | |
3872 | warning ("`-ax' option (jump profiling) not supported"); | |
3873 | #else | |
3874 | profile_block_flag = (!profile_block_flag | |
3875 | || profile_block_flag == 2) ? 2 : 3; | |
4291d9c8 RS |
3876 | #endif |
3877 | } | |
3878 | else if (str[0] == 'g') | |
3879 | { | |
4291d9c8 RS |
3880 | unsigned len; |
3881 | unsigned level; | |
ff482cef DE |
3882 | /* A lot of code assumes write_symbols == NO_DEBUG if the |
3883 | debugging level is 0 (thus -gstabs1 -gstabs0 would lose track | |
3884 | of what debugging type has been selected). This records the | |
3885 | selected type. It is an error to specify more than one | |
3886 | debugging type. */ | |
3887 | static enum debug_info_type selected_debug_type = NO_DEBUG; | |
3888 | /* Non-zero if debugging format has been explicitly set. | |
3889 | -g and -ggdb don't explicitly set the debugging format so | |
3890 | -gdwarf -g3 is equivalent to -gdwarf3. */ | |
3891 | static int type_explicitly_set_p = 0; | |
3892 | /* Table of supported debugging formats. */ | |
3893 | static struct { | |
3894 | char *arg; | |
3895 | /* Since PREFERRED_DEBUGGING_TYPE isn't necessarily a | |
3896 | constant expression, we use NO_DEBUG in its place. */ | |
3897 | enum debug_info_type debug_type; | |
3898 | int use_extensions_p; | |
3899 | } *da, debug_args[] = { | |
3900 | { "g", NO_DEBUG, DEFAULT_GDB_EXTENSIONS }, | |
3901 | { "ggdb", NO_DEBUG, 1 }, | |
3902 | #ifdef DBX_DEBUGGING_INFO | |
3903 | { "gstabs", DBX_DEBUG, 0 }, | |
3904 | { "gstabs+", DBX_DEBUG, 1 }, | |
3905 | #endif | |
3906 | #ifdef DWARF_DEBUGGING_INFO | |
3907 | { "gdwarf", DWARF_DEBUG, 0 }, | |
3908 | { "gdwarf+", DWARF_DEBUG, 1 }, | |
9a666dda | 3909 | #endif |
a94dbf2c JM |
3910 | #ifdef DWARF2_DEBUGGING_INFO |
3911 | { "gdwarf-2", DWARF2_DEBUG, 0 }, | |
ff482cef DE |
3912 | #endif |
3913 | #ifdef XCOFF_DEBUGGING_INFO | |
3914 | { "gxcoff", XCOFF_DEBUG, 0 }, | |
3915 | { "gxcoff+", XCOFF_DEBUG, 1 }, | |
3916 | #endif | |
3917 | #ifdef SDB_DEBUGGING_INFO | |
3918 | { "gcoff", SDB_DEBUG, 0 }, | |
3919 | #endif | |
3920 | { 0, 0, 0 } | |
3921 | }; | |
3922 | /* Indexed by enum debug_info_type. */ | |
3923 | static char *debug_type_names[] = { | |
9a666dda | 3924 | "none", "stabs", "coff", "dwarf-1", "dwarf-2", "xcoff" |
ff482cef | 3925 | }; |
4291d9c8 | 3926 | |
ff482cef DE |
3927 | /* Look up STR in the table. */ |
3928 | for (da = debug_args; da->arg; da++) | |
3929 | { | |
9a666dda | 3930 | if (! strncmp (str, da->arg, strlen (da->arg))) |
ff482cef DE |
3931 | { |
3932 | enum debug_info_type type = da->debug_type; | |
9a666dda JM |
3933 | char *p, *q; |
3934 | ||
3935 | p = str + strlen (da->arg); | |
3936 | if (*p && (*p < '0' || *p > '9')) | |
3937 | continue; | |
3938 | q = p; | |
3939 | while (*q && (*q >= '0' && *q <= '9')) | |
3940 | q++; | |
3941 | if (*p) | |
3942 | level = atoi (p); | |
3943 | else | |
3944 | level = 2; /* default debugging info level */ | |
3945 | if (*q || level > 3) | |
3946 | { | |
3947 | warning ("invalid debug level specification in option: `-%s'", | |
3948 | str); | |
3949 | /* ??? This error message is incorrect in the case of | |
3950 | -g4 -g. */ | |
3951 | warning ("no debugging information will be generated"); | |
3952 | level = 0; | |
3953 | } | |
3954 | ||
3955 | /* ??? A few targets use STR in the | |
ff482cef DE |
3956 | definition of PREFERRED_DEBUGGING_TYPE! */ |
3957 | if (type == NO_DEBUG) | |
3958 | type = PREFERRED_DEBUGGING_TYPE; | |
3959 | ||
3960 | /* Does it conflict with an already selected type? */ | |
3961 | if (type_explicitly_set_p | |
3962 | /* -g/-ggdb don't conflict with anything */ | |
3963 | && da->debug_type != NO_DEBUG | |
3964 | && type != selected_debug_type) | |
3965 | warning ("`-%s' ignored, conflicts with `-g%s'", | |
3966 | str, debug_type_names[(int) selected_debug_type]); | |
3967 | else | |
3968 | { | |
3969 | /* If the format has already been set, -g/-ggdb | |
3970 | only change the debug level. */ | |
3971 | if (type_explicitly_set_p | |
3972 | && da->debug_type == NO_DEBUG) | |
3973 | ; /* don't change debugging type */ | |
3974 | else | |
3975 | { | |
3976 | selected_debug_type = type; | |
3977 | type_explicitly_set_p = da->debug_type != NO_DEBUG; | |
3978 | } | |
3979 | write_symbols = (level == 0 | |
3980 | ? NO_DEBUG | |
3981 | : selected_debug_type); | |
3982 | use_gnu_debug_info_extensions = da->use_extensions_p; | |
3983 | debug_info_level = (enum debug_info_level) level; | |
3984 | } | |
3985 | break; | |
3986 | } | |
3987 | } | |
3988 | if (! da->arg) | |
7276e85d RK |
3989 | warning ("`-%s' not supported by this configuration of GCC", |
3990 | str); | |
4291d9c8 RS |
3991 | } |
3992 | else if (!strcmp (str, "o")) | |
3993 | { | |
3994 | asm_file_name = argv[++i]; | |
3995 | } | |
3996 | else if (str[0] == 'G') | |
3997 | { | |
3998 | g_switch_set = TRUE; | |
3999 | g_switch_value = atoi ((str[1] != '\0') ? str+1 : argv[++i]); | |
4000 | } | |
f246a305 RS |
4001 | else if (!strncmp (str, "aux-info", 8)) |
4002 | { | |
4003 | flag_gen_aux_info = 1; | |
4004 | aux_info_file_name = (str[8] != '\0' ? str+8 : argv[++i]); | |
4005 | } | |
4291d9c8 RS |
4006 | else |
4007 | error ("Invalid option `%s'", argv[i]); | |
4008 | } | |
4009 | else if (argv[i][0] == '+') | |
b99933c7 | 4010 | error ("Invalid option `%s'", argv[i]); |
4291d9c8 RS |
4011 | else |
4012 | filename = argv[i]; | |
4013 | } | |
4014 | ||
ca695ac9 | 4015 | /* Initialize for bytecode output. A good idea to do this as soon as |
0f41302f | 4016 | possible after the "-f" options have been parsed. */ |
ca695ac9 JB |
4017 | if (output_bytecode) |
4018 | { | |
4019 | #ifndef TARGET_SUPPORTS_BYTECODE | |
4020 | /* Just die with a fatal error if not supported */ | |
40e6003c | 4021 | fatal ("-fbytecode not supported for this target"); |
ca695ac9 JB |
4022 | #else |
4023 | bc_initialize (); | |
4024 | #endif | |
4025 | } | |
4026 | ||
f246a305 RS |
4027 | if (optimize == 0) |
4028 | { | |
a2468e45 BK |
4029 | /* Inlining does not work if not optimizing, |
4030 | so force it not to be done. */ | |
f246a305 RS |
4031 | flag_no_inline = 1; |
4032 | warn_inline = 0; | |
a2468e45 BK |
4033 | |
4034 | /* The c_decode_option and lang_decode_option functions set | |
4035 | this to `2' if -Wall is used, so we can avoid giving out | |
4036 | lots of errors for people who don't realize what -Wall does. */ | |
4037 | if (warn_uninitialized == 1) | |
4038 | warning ("-Wuninitialized is not supported without -O"); | |
f246a305 RS |
4039 | } |
4040 | ||
4291d9c8 RS |
4041 | #ifdef OVERRIDE_OPTIONS |
4042 | /* Some machines may reject certain combinations of options. */ | |
4043 | OVERRIDE_OPTIONS; | |
4044 | #endif | |
4045 | ||
ec6c615d RK |
4046 | if (profile_block_flag == 3) |
4047 | { | |
4048 | warning ("`-ax' and `-a' are conflicting options. `-a' ignored."); | |
4049 | profile_block_flag = 2; | |
4050 | } | |
4051 | ||
4291d9c8 RS |
4052 | /* Unrolling all loops implies that standard loop unrolling must also |
4053 | be done. */ | |
4054 | if (flag_unroll_all_loops) | |
4055 | flag_unroll_loops = 1; | |
4056 | /* Loop unrolling requires that strength_reduction be on also. Silently | |
4057 | turn on strength reduction here if it isn't already on. Also, the loop | |
4058 | unrolling code assumes that cse will be run after loop, so that must | |
4059 | be turned on also. */ | |
4060 | if (flag_unroll_loops) | |
4061 | { | |
4062 | flag_strength_reduce = 1; | |
4063 | flag_rerun_cse_after_loop = 1; | |
4064 | } | |
4065 | ||
4066 | /* Warn about options that are not supported on this machine. */ | |
4067 | #ifndef INSN_SCHEDULING | |
4068 | if (flag_schedule_insns || flag_schedule_insns_after_reload) | |
4069 | warning ("instruction scheduling not supported on this target machine"); | |
4070 | #endif | |
4071 | #ifndef DELAY_SLOTS | |
4072 | if (flag_delayed_branch) | |
4073 | warning ("this target machine does not have delayed branches"); | |
4074 | #endif | |
4075 | ||
4076 | /* If we are in verbose mode, write out the version and maybe all the | |
4077 | option flags in use. */ | |
4078 | if (version_flag) | |
4079 | { | |
3d5cdd42 | 4080 | print_version (stderr, ""); |
4291d9c8 | 4081 | if (! quiet_flag) |
3d5cdd42 | 4082 | print_switch_values (stderr, 0, MAX_LINE, "", " ", "\n"); |
4291d9c8 RS |
4083 | } |
4084 | ||
4291d9c8 RS |
4085 | compile_file (filename); |
4086 | ||
876ac40d | 4087 | #if !defined(OS2) && !defined(VMS) && (!defined(_WIN32) || defined (__CYGWIN32__)) |
4291d9c8 RS |
4088 | if (flag_print_mem) |
4089 | { | |
4090 | char *lim = (char *) sbrk (0); | |
4091 | ||
4092 | fprintf (stderr, "Data size %d.\n", | |
b61b1c91 | 4093 | lim - (char *) &environ); |
4291d9c8 RS |
4094 | fflush (stderr); |
4095 | ||
4096 | #ifdef USG | |
4097 | system ("ps -l 1>&2"); | |
4098 | #else /* not USG */ | |
4099 | system ("ps v"); | |
4100 | #endif /* not USG */ | |
4101 | } | |
876ac40d | 4102 | #endif /* ! OS2 && ! VMS && (! _WIN32 || CYGWIN32) */ |
4291d9c8 RS |
4103 | |
4104 | if (errorcount) | |
4105 | exit (FATAL_EXIT_CODE); | |
4106 | if (sorrycount) | |
4107 | exit (FATAL_EXIT_CODE); | |
4108 | exit (SUCCESS_EXIT_CODE); | |
299846f2 | 4109 | return 0; |
4291d9c8 RS |
4110 | } |
4111 | \f | |
4112 | /* Decode -m switches. */ | |
4113 | ||
4114 | /* Here is a table, controlled by the tm.h file, listing each -m switch | |
4115 | and which bits in `target_switches' it should set or clear. | |
4116 | If VALUE is positive, it is bits to set. | |
4117 | If VALUE is negative, -VALUE is bits to clear. | |
4118 | (The sign bit is not used so there is no confusion.) */ | |
4119 | ||
4120 | struct {char *name; int value;} target_switches [] | |
4121 | = TARGET_SWITCHES; | |
4122 | ||
4123 | /* This table is similar, but allows the switch to have a value. */ | |
4124 | ||
4125 | #ifdef TARGET_OPTIONS | |
4126 | struct {char *prefix; char ** variable;} target_options [] | |
4127 | = TARGET_OPTIONS; | |
4128 | #endif | |
4129 | ||
4130 | /* Decode the switch -mNAME. */ | |
4131 | ||
4132 | void | |
4133 | set_target_switch (name) | |
4134 | char *name; | |
4135 | { | |
4136 | register int j; | |
4137 | int valid = 0; | |
4138 | ||
4139 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) | |
4140 | if (!strcmp (target_switches[j].name, name)) | |
4141 | { | |
4142 | if (target_switches[j].value < 0) | |
4143 | target_flags &= ~-target_switches[j].value; | |
4144 | else | |
4145 | target_flags |= target_switches[j].value; | |
4146 | valid = 1; | |
4147 | } | |
4148 | ||
4149 | #ifdef TARGET_OPTIONS | |
4150 | if (!valid) | |
4151 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) | |
4152 | { | |
4153 | int len = strlen (target_options[j].prefix); | |
4154 | if (!strncmp (target_options[j].prefix, name, len)) | |
4155 | { | |
4156 | *target_options[j].variable = name + len; | |
4157 | valid = 1; | |
4158 | } | |
4159 | } | |
4160 | #endif | |
4161 | ||
4162 | if (!valid) | |
4163 | error ("Invalid option `%s'", name); | |
4164 | } | |
4165 | \f | |
3d5cdd42 DE |
4166 | /* Print version information to FILE. |
4167 | Each line begins with INDENT (for the case where FILE is the | |
4168 | assembler output file). */ | |
4291d9c8 | 4169 | |
3d5cdd42 DE |
4170 | void |
4171 | print_version (file, indent) | |
4172 | FILE *file; | |
4173 | char *indent; | |
4291d9c8 | 4174 | { |
3d5cdd42 DE |
4175 | fprintf (file, "%s%s%s version %s", indent, *indent != 0 ? " " : "", |
4176 | language_string, version_string); | |
4177 | fprintf (file, " (%s)", TARGET_NAME); | |
4178 | #ifdef __GNUC__ | |
4179 | #ifndef __VERSION__ | |
4180 | #define __VERSION__ "[unknown]" | |
4181 | #endif | |
4182 | fprintf (file, " compiled by GNU C version %s.\n", __VERSION__); | |
4183 | #else | |
4184 | fprintf (file, " compiled by CC.\n"); | |
4185 | #endif | |
4186 | } | |
4291d9c8 | 4187 | |
3d5cdd42 | 4188 | /* Print an option value and return the adjusted position in the line. |
309a8875 DE |
4189 | ??? We don't handle error returns from fprintf (disk full); presumably |
4190 | other code will catch a disk full though. */ | |
4291d9c8 | 4191 | |
3d5cdd42 DE |
4192 | int |
4193 | print_single_switch (file, pos, max, indent, sep, term, type, name) | |
4194 | FILE *file; | |
4195 | int pos, max; | |
4196 | char *indent, *sep, *term, *type, *name; | |
4197 | { | |
309a8875 DE |
4198 | /* The ultrix fprintf returns 0 on success, so compute the result we want |
4199 | here since we need it for the following test. */ | |
4200 | int len = strlen (sep) + strlen (type) + strlen (name); | |
4201 | ||
3d5cdd42 | 4202 | if (pos != 0 |
309a8875 | 4203 | && pos + len > max) |
4291d9c8 | 4204 | { |
3d5cdd42 DE |
4205 | fprintf (file, "%s", term); |
4206 | pos = 0; | |
4291d9c8 | 4207 | } |
3d5cdd42 DE |
4208 | if (pos == 0) |
4209 | { | |
309a8875 DE |
4210 | fprintf (file, "%s", indent); |
4211 | pos = strlen (indent); | |
3d5cdd42 | 4212 | } |
309a8875 DE |
4213 | fprintf (file, "%s%s%s", sep, type, name); |
4214 | pos += len; | |
3d5cdd42 | 4215 | return pos; |
4291d9c8 RS |
4216 | } |
4217 | ||
3d5cdd42 DE |
4218 | /* Print active target switches to FILE. |
4219 | POS is the current cursor position and MAX is the size of a "line". | |
4220 | Each line begins with INDENT and ends with TERM. | |
4221 | Each switch is separated from the next by SEP. */ | |
4291d9c8 | 4222 | |
3d5cdd42 DE |
4223 | void |
4224 | print_switch_values (file, pos, max, indent, sep, term) | |
4225 | FILE *file; | |
4226 | int pos, max; | |
4227 | char *indent, *sep, *term; | |
4291d9c8 | 4228 | { |
3d5cdd42 DE |
4229 | int j, flags; |
4230 | char **p; | |
4231 | ||
4232 | /* Print the options as passed. */ | |
4291d9c8 | 4233 | |
3d5cdd42 DE |
4234 | pos = print_single_switch (file, pos, max, indent, *indent ? " " : "", term, |
4235 | "options passed: ", ""); | |
4236 | ||
520e7ff5 | 4237 | for (p = &save_argv[1]; *p != NULL; p++) |
3d5cdd42 DE |
4238 | if (**p == '-') |
4239 | { | |
4240 | /* Ignore these. */ | |
520e7ff5 DE |
4241 | if (strcmp (*p, "-o") == 0) |
4242 | { | |
4243 | if (p[1] != NULL) | |
4244 | p++; | |
4245 | continue; | |
4246 | } | |
3d5cdd42 DE |
4247 | if (strcmp (*p, "-quiet") == 0) |
4248 | continue; | |
4249 | if (strcmp (*p, "-version") == 0) | |
4250 | continue; | |
4251 | if ((*p)[1] == 'd') | |
4252 | continue; | |
4253 | ||
4254 | pos = print_single_switch (file, pos, max, indent, sep, term, *p, ""); | |
4255 | } | |
4256 | if (pos > 0) | |
4257 | fprintf (file, "%s", term); | |
4258 | ||
4259 | /* Print the -f and -m options that have been enabled. | |
4260 | We don't handle language specific options but printing argv | |
4261 | should suffice. */ | |
4262 | ||
4263 | pos = print_single_switch (file, 0, max, indent, *indent ? " " : "", term, | |
4264 | "options enabled: ", ""); | |
4291d9c8 RS |
4265 | |
4266 | for (j = 0; j < sizeof f_options / sizeof f_options[0]; j++) | |
4267 | if (*f_options[j].variable == f_options[j].on_value) | |
3d5cdd42 DE |
4268 | pos = print_single_switch (file, pos, max, indent, sep, term, |
4269 | "-f", f_options[j].string); | |
4291d9c8 | 4270 | |
3d5cdd42 | 4271 | /* Print target specific options. */ |
4291d9c8 | 4272 | |
3d5cdd42 | 4273 | flags = target_flags; |
4291d9c8 RS |
4274 | for (j = 0; j < sizeof target_switches / sizeof target_switches[0]; j++) |
4275 | if (target_switches[j].name[0] != '\0' | |
4276 | && target_switches[j].value > 0 | |
4277 | && ((target_switches[j].value & target_flags) | |
4278 | == target_switches[j].value)) | |
3d5cdd42 DE |
4279 | { |
4280 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
4281 | "-m", target_switches[j].name); | |
4282 | flags &= ~ target_switches[j].value; | |
4283 | } | |
4284 | ||
4285 | #ifdef TARGET_OPTIONS | |
4286 | for (j = 0; j < sizeof target_options / sizeof target_options[0]; j++) | |
4287 | if (*target_options[j].variable != NULL) | |
4288 | { | |
4289 | char prefix[256]; | |
4290 | sprintf (prefix, "-m%s", target_options[j].prefix); | |
4291 | pos = print_single_switch (file, pos, max, indent, sep, term, | |
4292 | prefix, *target_options[j].variable); | |
4293 | } | |
4294 | #endif | |
4291d9c8 | 4295 | |
3d5cdd42 | 4296 | fprintf (file, "%s", term); |
4291d9c8 | 4297 | } |
9a666dda JM |
4298 | |
4299 | /* Record the beginning of a new source file, named FILENAME. */ | |
4300 | ||
4301 | void | |
4302 | debug_start_source_file (filename) | |
4303 | register char *filename; | |
4304 | { | |
4305 | #ifdef DBX_DEBUGGING_INFO | |
4306 | if (write_symbols == DBX_DEBUG) | |
4307 | dbxout_start_new_source_file (filename); | |
4308 | #endif | |
4309 | #ifdef DWARF_DEBUGGING_INFO | |
4310 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4311 | && write_symbols == DWARF_DEBUG) | |
4312 | dwarfout_start_new_source_file (filename); | |
4313 | #endif /* DWARF_DEBUGGING_INFO */ | |
4314 | #ifdef DWARF2_DEBUGGING_INFO | |
4315 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4316 | && write_symbols == DWARF2_DEBUG) | |
4317 | dwarf2out_start_source_file (filename); | |
4318 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
4319 | #ifdef SDB_DEBUGGING_INFO |
4320 | if (write_symbols == SDB_DEBUG) | |
4321 | sdbout_start_new_source_file (filename); | |
4322 | #endif | |
9a666dda JM |
4323 | } |
4324 | ||
4325 | /* Record the resumption of a source file. LINENO is the line number in | |
4326 | the source file we are returning to. */ | |
4327 | ||
4328 | void | |
4329 | debug_end_source_file (lineno) | |
4330 | register unsigned lineno; | |
4331 | { | |
4332 | #ifdef DBX_DEBUGGING_INFO | |
4333 | if (write_symbols == DBX_DEBUG) | |
4334 | dbxout_resume_previous_source_file (); | |
4335 | #endif | |
4336 | #ifdef DWARF_DEBUGGING_INFO | |
4337 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4338 | && write_symbols == DWARF_DEBUG) | |
4339 | dwarfout_resume_previous_source_file (lineno); | |
4340 | #endif /* DWARF_DEBUGGING_INFO */ | |
4341 | #ifdef DWARF2_DEBUGGING_INFO | |
4342 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4343 | && write_symbols == DWARF2_DEBUG) | |
4344 | dwarf2out_end_source_file (); | |
4345 | #endif /* DWARF2_DEBUGGING_INFO */ | |
cc694a81 DE |
4346 | #ifdef SDB_DEBUGGING_INFO |
4347 | if (write_symbols == SDB_DEBUG) | |
4348 | sdbout_resume_previous_source_file (); | |
4349 | #endif | |
9a666dda JM |
4350 | } |
4351 | ||
4352 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
4353 | the tail part of the directive line, i.e. the part which is past the | |
4354 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
4355 | ||
4356 | void | |
4357 | debug_define (lineno, buffer) | |
4358 | register unsigned lineno; | |
4359 | register char *buffer; | |
4360 | { | |
4361 | #ifdef DWARF_DEBUGGING_INFO | |
4362 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4363 | && write_symbols == DWARF_DEBUG) | |
4364 | dwarfout_define (lineno, buffer); | |
4365 | #endif /* DWARF_DEBUGGING_INFO */ | |
4366 | #ifdef DWARF2_DEBUGGING_INFO | |
4367 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4368 | && write_symbols == DWARF2_DEBUG) | |
4369 | dwarf2out_define (lineno, buffer); | |
4370 | #endif /* DWARF2_DEBUGGING_INFO */ | |
4371 | } | |
4372 | ||
4373 | /* Called from check_newline in c-parse.y. The `buffer' parameter contains | |
4374 | the tail part of the directive line, i.e. the part which is past the | |
4375 | initial whitespace, #, whitespace, directive-name, whitespace part. */ | |
4376 | ||
4377 | void | |
4378 | debug_undef (lineno, buffer) | |
4379 | register unsigned lineno; | |
4380 | register char *buffer; | |
4381 | { | |
4382 | #ifdef DWARF_DEBUGGING_INFO | |
4383 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4384 | && write_symbols == DWARF_DEBUG) | |
4385 | dwarfout_undef (lineno, buffer); | |
4386 | #endif /* DWARF_DEBUGGING_INFO */ | |
4387 | #ifdef DWARF2_DEBUGGING_INFO | |
4388 | if (debug_info_level == DINFO_LEVEL_VERBOSE | |
4389 | && write_symbols == DWARF2_DEBUG) | |
4390 | dwarf2out_undef (lineno, buffer); | |
4391 | #endif /* DWARF2_DEBUGGING_INFO */ | |
4392 | } |