1 /* Common declarations for all of libgfor.
2 Copyright (C) 2002, 2003, 2004 Free Software Foundation, Inc.
3 Contributed by Paul Brook <paul@nowt.org>, and
4 Andy Vaught <andy@xena.eas.asu.edu>
6 This file is part of the GNU Fortran 95 runtime library (libgfortran).
8 Libgfortran is free software; you can redistribute it and/or
9 modify it under the terms of the GNU Lesser General Public
10 License as published by the Free Software Foundation; either
11 version 2.1 of the License, or (at your option) any later version.
13 Libgfortran is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public
19 License along with libgfor; see the file COPYING.LIB. If not,
20 write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
21 Boston, MA 02111-1307, USA. */
23 /* As a special exception, if you link this library with other files,
24 some of which are compiled with GCC, to produce an executable,
25 this library does not by itself cause the resulting executable
26 to be covered by the GNU General Public License.
27 This exception does not however invalidate any other reasons why
28 the executable file might be covered by the GNU General Public License. */
38 #define M_PI 3.14159265358979323846264338327
42 #include "c99_protos.h"
47 #define complex __complex__
62 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && defined(TARGET_ILP32)
64 typedef short int16_t;
66 typedef long long int64_t;
67 typedef unsigned char uint8_t;
68 typedef unsigned short uint16_t;
69 typedef unsigned int uint32_t;
70 typedef unsigned long long uint64_t;
74 #include <sys/types.h>
76 typedef off_t gfc_offset;
79 #define NULL (void *) 0
83 #define __attribute__(x)
86 /* For a library, a standard prefix is a requirement in order to partition
87 the namespace. IPREFIX is for symbols intended to be internal to the
89 #define PREFIX(x) _gfortran_ ## x
90 #define IPREFIX(x) _gfortrani_ ## x
92 /* Magic to rename a symbol at the compiler level. You continue to refer
93 to the symbol as OLD in the source, but it'll be named NEW in the asm. */
94 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
95 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
96 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
98 /* There are several classifications of routines:
100 (1) Symbols used only within the library,
101 (2) Symbols to be exported from the library,
102 (3) Symbols to be exported from the library, but
103 also used inside the library.
105 By telling the compiler about these different classifications we can
106 tightly control the interface seen by the user, and get better code
107 from the compiler at the same time.
109 One of the following should be used immediately after the declaration
112 internal_proto Marks a symbol used only within the library,
113 and adds IPREFIX to the assembly-level symbol
114 name. The later is important for maintaining
115 the namespace partition for the static library.
117 export_proto Marks a symbol to be exported, and adds PREFIX
118 to the assembly-level symbol name.
120 export_proto_np Marks a symbol to be exported without adding PREFIX.
122 iexport_proto Marks a function to be exported, but with the
123 understanding that it can be used inside as well.
125 iexport_data_proto Similarly, marks a data symbol to be exported.
126 Unfortunately, some systems can't play the hidden
127 symbol renaming trick on data symbols, thanks to
128 the horribleness of COPY relocations.
130 If iexport_proto or iexport_data_proto is used, you must also use
131 iexport or iexport_data after the *definition* of the symbol. */
133 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
134 # define internal_proto(x) \
135 sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
137 # define internal_proto(x) sym_rename(x, IPREFIX(x))
140 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
141 # define export_proto(x) sym_rename(x, PREFIX(x))
142 # define export_proto_np(x) extern char swallow_semicolon
143 # define iexport_proto(x) internal_proto(x)
144 # define iexport(x) iexport1(x, __USER_LABEL_PREFIX__, IPREFIX(x))
145 # define iexport1(x,p,y) iexport2(x,p,y)
146 # define iexport2(x,p,y) \
147 extern __typeof(x) PREFIX(x) __attribute__((__alias__(#p #y)))
148 /* ??? We're not currently building a dll, and it's wrong to add dllexport
149 to objects going into a static library archive. */
150 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
151 # define export_proto_np(x) extern __typeof(x) x __attribute__((dllexport))
152 # define export_proto(x) sym_rename(x, PREFIX(x)) __attribute__((dllexport))
153 # define iexport_proto(x) export_proto(x)
154 # define iexport(x) extern char swallow_semicolon
156 # define export_proto(x) sym_rename(x, PREFIX(x))
157 # define export_proto_np(x) extern char swallow_semicolon
158 # define iexport_proto(x) export_proto(x)
159 # define iexport(x) extern char swallow_semicolon
162 /* TODO: detect the case when we *can* hide the symbol. */
163 #define iexport_data_proto(x) export_proto(x)
164 #define iexport_data(x) extern char swallow_semicolon
166 /* The only reliable way to get the offset of a field in a struct
167 in a system independent way is via this macro. */
169 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
172 /* The isfinite macro is only available with C99, but some non-C99
173 systems still provide fpclassify, and there is a `finite' function
174 in BSD. When isfinite is not available, try to use one of the
175 alternatives, or bail out. */
176 #if !defined(isfinite)
180 #if defined(fpclassify)
181 return (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE);
182 #elif defined(HAVE_FINITE)
185 #error "libgfortran needs isfinite, fpclassify, or finite"
188 #endif /* !defined(isfinite) */
190 /* TODO: find the C99 version of these an move into above ifdef. */
191 #define REALPART(z) (__real__(z))
192 #define IMAGPART(z) (__imag__(z))
193 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
195 typedef int8_t GFC_INTEGER_1;
196 typedef int16_t GFC_INTEGER_2;
197 typedef int32_t GFC_INTEGER_4;
198 typedef int64_t GFC_INTEGER_8;
199 typedef uint8_t GFC_UINTEGER_1;
200 typedef uint16_t GFC_UINTEGER_2;
201 typedef uint32_t GFC_UINTEGER_4;
202 typedef uint64_t GFC_UINTEGER_8;
203 typedef GFC_INTEGER_4 GFC_LOGICAL_4;
204 typedef GFC_INTEGER_8 GFC_LOGICAL_8;
205 typedef float GFC_REAL_4;
206 typedef double GFC_REAL_8;
207 typedef complex float GFC_COMPLEX_4;
208 typedef complex double GFC_COMPLEX_8;
210 /* The following two definitions must be consistent with the types used
212 /* The type used of array indices, amongst other things. */
213 typedef size_t index_type;
214 /* The type used for the lengths of character variables. */
215 typedef GFC_INTEGER_4 gfc_charlen_type;
217 /* This will be 0 on little-endian machines and one on big-endian machines. */
218 extern int l8_to_l4_offset;
219 internal_proto(l8_to_l4_offset);
221 #define GFOR_POINTER_L8_TO_L4(p8) \
222 (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
224 #define GFC_INTEGER_4_HUGE \
225 (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
226 #define GFC_INTEGER_8_HUGE \
227 (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
228 #define GFC_REAL_4_HUGE FLT_MAX
229 #define GFC_REAL_8_HUGE DBL_MAX
231 #ifndef GFC_MAX_DIMENSIONS
232 #define GFC_MAX_DIMENSIONS 7
235 typedef struct descriptor_dimension
241 descriptor_dimension;
243 #define GFC_ARRAY_DESCRIPTOR(r, type) \
248 descriptor_dimension dim[r];\
251 /* Commonly used array descriptor types. */
252 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
253 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
254 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
255 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
256 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
257 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
258 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
259 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
260 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
261 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
263 #define GFC_DTYPE_RANK_MASK 0x07
264 #define GFC_DTYPE_TYPE_SHIFT 3
265 #define GFC_DTYPE_TYPE_MASK 0x38
266 #define GFC_DTYPE_SIZE_SHIFT 6
270 GFC_DTYPE_UNKNOWN = 0,
272 /* TODO: recognize logical types. */
280 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
281 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
282 >> GFC_DTYPE_TYPE_SHIFT)
283 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
284 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
285 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
287 /* Runtime library include. */
288 #define stringize(x) expand_macro(x)
289 #define expand_macro(x) # x
291 /* Runtime options structure. */
295 int stdin_unit, stdout_unit, stderr_unit, optional_plus;
296 int allocate_init_flag, allocate_init_value;
300 const char *separator;
303 int use_stderr, all_unbuffered, default_recl;
305 int fpu_round, fpu_precision, fpu_invalid, fpu_denormal, fpu_zerodiv,
306 fpu_overflow, fpu_underflow, fpu_precision_loss;
313 extern options_t options;
314 internal_proto(options);
317 /* Structure for statement options. */
326 /* Runtime errors. The EOR and EOF errors are required to be negative. */
330 ERROR_FIRST = -3, /* Marker for the first error. */
333 ERROR_OK = 0, /* Indicates success, must be zero. */
334 ERROR_OS, /* Operating system error, more info in errno. */
335 ERROR_OPTION_CONFLICT,
337 ERROR_MISSING_OPTION,
346 ERROR_LAST /* Not a real error, the last error # + 1. */
351 /* The filename and line number don't go inside the globals structure.
352 They are set by the rest of the program and must be linked to. */
354 /* Location of the current library call (optional). */
355 extern unsigned line;
356 iexport_data_proto(line);
358 extern char *filename;
359 iexport_data_proto(filename);
361 /* Avoid conflicting prototypes of alloca() in system headers by using
362 GCC's builtin alloca(). */
363 #define gfc_alloca(x) __builtin_alloca(x)
368 extern void library_start (void);
369 internal_proto(library_start);
371 extern void library_end (void);
372 internal_proto(library_end);
374 extern void set_args (int, char **);
375 export_proto(set_args);
377 extern void get_args (int *, char ***);
378 internal_proto(get_args);
382 extern char *gfc_itoa (int64_t);
383 internal_proto(gfc_itoa);
385 extern char *xtoa (uint64_t);
386 internal_proto(xtoa);
388 extern void os_error (const char *) __attribute__ ((noreturn));
389 internal_proto(os_error);
391 extern void show_locus (void);
392 internal_proto(show_locus);
394 extern void runtime_error (const char *) __attribute__ ((noreturn));
395 iexport_proto(runtime_error);
397 extern void internal_error (const char *) __attribute__ ((noreturn));
398 internal_proto(internal_error);
400 extern const char *get_oserror (void);
401 internal_proto(get_oserror);
403 extern void sys_exit (int) __attribute__ ((noreturn));
404 internal_proto(sys_exit);
406 extern int st_printf (const char *, ...)
407 __attribute__ ((format (printf, 1, 2)));
408 internal_proto(st_printf);
410 extern void st_sprintf (char *, const char *, ...)
411 __attribute__ ((format (printf, 2, 3)));
412 internal_proto(st_sprintf);
414 extern const char *translate_error (int);
415 internal_proto(translate_error);
417 extern void generate_error (int, const char *);
418 internal_proto(generate_error);
422 extern void *get_mem (size_t) __attribute__ ((malloc));
423 internal_proto(get_mem);
425 extern void free_mem (void *);
426 internal_proto(free_mem);
428 extern void *internal_malloc_size (size_t);
429 internal_proto(internal_malloc_size);
431 extern void internal_free (void *);
432 iexport_proto(internal_free);
436 extern int check_buffered (int);
437 internal_proto(check_buffered);
439 extern void init_variables (void);
440 internal_proto(init_variables);
442 extern void show_variables (void);
443 internal_proto(show_variables);
447 extern int find_option (const char *, int, st_option *, const char *);
448 internal_proto(find_option);
450 extern int fstrlen (const char *, int);
451 internal_proto(fstrlen);
453 extern void fstrcpy (char *, int, const char *, int);
454 internal_proto(fstrcpy);
456 extern void cf_strcpy (char *, int, const char *);
457 internal_proto(cf_strcpy);
461 extern void init_units (void);
462 internal_proto(init_units);
464 extern void close_units (void);
465 internal_proto(close_units);
469 extern void stop_numeric (GFC_INTEGER_4);
470 iexport_proto(stop_numeric);
472 /* reshape_packed.c */
474 extern void reshape_packed (char *, index_type, const char *, index_type,
475 const char *, index_type);
476 internal_proto(reshape_packed);
478 /* Repacking functions. */
480 /* ??? These four aren't currently used by the compiler, though we
481 certainly could do so. */
482 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
483 internal_proto(internal_pack_4);
485 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
486 internal_proto(internal_pack_8);
488 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
489 internal_proto(internal_unpack_4);
491 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
492 internal_proto(internal_unpack_8);
494 /* string_intrinsics.c */
496 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
497 GFC_INTEGER_4, const char *);
498 iexport_proto(compare_string);
502 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
504 iexport_proto(random_seed);
508 extern GFC_REAL_4 normalize_r4_i4 (GFC_UINTEGER_4, GFC_UINTEGER_4);
509 internal_proto(normalize_r4_i4);
511 extern GFC_REAL_8 normalize_r8_i8 (GFC_UINTEGER_8, GFC_UINTEGER_8);
512 internal_proto(normalize_r8_i8);
516 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
518 extern index_type size0 (const array_t * array);
519 iexport_proto(size0);
521 #endif /* LIBGFOR_H */