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 (libgfor).
8 Libgfor 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 Libgfor 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. */
31 #define M_PI 3.14159265358979323846264338327
35 #include "c99_protos.h"
40 #define complex __complex__
55 #if !defined(HAVE_STDINT_H) && !defined(HAVE_INTTYPES_H) && defined(TARGET_ILP32)
57 typedef short int16_t;
59 typedef long long int64_t;
60 typedef unsigned char uint8_t;
61 typedef unsigned short uint16_t;
62 typedef unsigned int uint32_t;
63 typedef unsigned long long uint64_t;
67 #include <sys/types.h>
69 typedef off_t gfc_offset;
72 #define NULL (void *) 0
76 #define __attribute__(x)
79 /* For a library, a standard prefix is a requirement in order to partition
80 the namespace. IPREFIX is for symbols intended to be internal to the
82 #define PREFIX(x) _gfortran_ ## x
83 #define IPREFIX(x) _gfortrani_ ## x
85 /* Magic to rename a symbol at the compiler level. You continue to refer
86 to the symbol as OLD in the source, but it'll be named NEW in the asm. */
87 #define sym_rename(old, new) sym_rename1(old, __USER_LABEL_PREFIX__, new)
88 #define sym_rename1(old, ulp, new) sym_rename2(old, ulp, new)
89 #define sym_rename2(old, ulp, new) extern __typeof(old) old __asm__(#ulp #new)
91 /* There are several classifications of routines:
93 (1) Symbols used only within the library,
94 (2) Symbols to be exported from the library,
95 (3) Symbols to be exported from the library, but
96 also used inside the library.
98 By telling the compiler about these different classifications we can
99 tightly control the interface seen by the user, and get better code
100 from the compiler at the same time.
102 One of the following should be used immediately after the declaration
105 internal_proto Marks a symbol used only within the library,
106 and adds IPREFIX to the assembly-level symbol
107 name. The later is important for maintaining
108 the namespace partition for the static library.
110 export_proto Marks a symbol to be exported, and adds PREFIX
111 to the assembly-level symbol name.
113 export_proto_np Marks a symbol to be exported without adding PREFIX.
115 iexport_proto Marks a function to be exported, but with the
116 understanding that it can be used inside as well.
118 iexport_data_proto Similarly, marks a data symbol to be exported.
119 Unfortunately, some systems can't play the hidden
120 symbol renaming trick on data symbols, thanks to
121 the horribleness of COPY relocations.
123 If iexport_proto or iexport_data_proto is used, you must also use
124 iexport or iexport_data after the *definition* of the symbol. */
126 #if defined(HAVE_ATTRIBUTE_VISIBILITY)
127 # define internal_proto(x) \
128 sym_rename(x, IPREFIX (x)) __attribute__((__visibility__("hidden")))
130 # define internal_proto(x) sym_rename(x, IPREFIX(x))
133 #if defined(HAVE_ATTRIBUTE_VISIBILITY) && defined(HAVE_ATTRIBUTE_ALIAS)
134 # define export_proto(x) sym_rename(x, PREFIX(x))
135 # define export_proto_np(x) extern char swallow_semicolon
136 # define iexport_proto(x) internal_proto(x)
137 # define iexport(x) iexport1(x, __USER_LABEL_PREFIX__, IPREFIX(x))
138 # define iexport1(x,p,y) iexport2(x,p,y)
139 # define iexport2(x,p,y) \
140 extern __typeof(x) PREFIX(x) __attribute__((__alias__(#p #y)))
141 /* ??? We're not currently building a dll, and it's wrong to add dllexport
142 to objects going into a static library archive. */
143 #elif 0 && defined(HAVE_ATTRIBUTE_DLLEXPORT)
144 # define export_proto_np(x) extern __typeof(x) x __attribute__((dllexport))
145 # define export_proto(x) sym_rename(x, PREFIX(x)) __attribute__((dllexport))
146 # define iexport_proto(x) export_proto(x)
147 # define iexport(x) extern char swallow_semicolon
149 # define export_proto(x) sym_rename(x, PREFIX(x))
150 # define export_proto_np(x) extern char swallow_semicolon
151 # define iexport_proto(x) export_proto(x)
152 # define iexport(x) extern char swallow_semicolon
155 /* TODO: detect the case when we *can* hide the symbol. */
156 #define iexport_data_proto(x) export_proto(x)
157 #define iexport_data(x) extern char swallow_semicolon
159 /* The only reliable way to get the offset of a field in a struct
160 in a system independent way is via this macro. */
162 #define offsetof(TYPE, MEMBER) ((size_t) &((TYPE *) 0)->MEMBER)
165 /* The isfinite macro is only available with C99, but some non-C99
166 systems still provide fpclassify, and there is a `finite' function
167 in BSD. When isfinite is not available, try to use one of the
168 alternatives, or bail out. */
169 #if !defined(isfinite)
173 #if defined(fpclassify)
174 return (fpclassify(x) != FP_NAN && fpclassify(x) != FP_INFINITE);
175 #elif defined(HAVE_FINITE)
178 #error "libgfortran needs isfinite, fpclassify, or finite"
181 #endif /* !defined(isfinite) */
183 /* TODO: find the C99 version of these an move into above ifdef. */
184 #define REALPART(z) (__real__(z))
185 #define IMAGPART(z) (__imag__(z))
186 #define COMPLEX_ASSIGN(z_, r_, i_) {__real__(z_) = (r_); __imag__(z_) = (i_);}
188 typedef int8_t GFC_INTEGER_1;
189 typedef int16_t GFC_INTEGER_2;
190 typedef int32_t GFC_INTEGER_4;
191 typedef int64_t GFC_INTEGER_8;
192 typedef uint32_t GFC_UINTEGER_4;
193 typedef uint64_t GFC_UINTEGER_8;
194 typedef GFC_INTEGER_4 GFC_LOGICAL_4;
195 typedef GFC_INTEGER_8 GFC_LOGICAL_8;
196 typedef float GFC_REAL_4;
197 typedef double GFC_REAL_8;
198 typedef complex float GFC_COMPLEX_4;
199 typedef complex double GFC_COMPLEX_8;
201 /* The following two definitions must be consistent with the types used
203 /* The type used of array indices, amongst other things. */
204 typedef size_t index_type;
205 /* The type used for the lengths of character variables. */
206 typedef GFC_INTEGER_4 gfc_charlen_type;
208 /* This will be 0 on little-endian machines and one on big-endian machines. */
209 extern int l8_to_l4_offset;
210 internal_proto(l8_to_l4_offset);
212 #define GFOR_POINTER_L8_TO_L4(p8) \
213 (l8_to_l4_offset + (GFC_LOGICAL_4 *)(p8))
215 #define GFC_INTEGER_4_HUGE \
216 (GFC_INTEGER_4)((((GFC_UINTEGER_4)1) << 31) - 1)
217 #define GFC_INTEGER_8_HUGE \
218 (GFC_INTEGER_8)((((GFC_UINTEGER_8)1) << 63) - 1)
219 #define GFC_REAL_4_HUGE FLT_MAX
220 #define GFC_REAL_8_HUGE DBL_MAX
222 #ifndef GFC_MAX_DIMENSIONS
223 #define GFC_MAX_DIMENSIONS 7
226 typedef struct descriptor_dimension
232 descriptor_dimension;
234 #define GFC_ARRAY_DESCRIPTOR(r, type) \
239 descriptor_dimension dim[r];\
242 /* Commonly used array descriptor types. */
243 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) gfc_array_void;
244 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, char) gfc_array_char;
245 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_4) gfc_array_i4;
246 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_INTEGER_8) gfc_array_i8;
247 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_4) gfc_array_r4;
248 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_REAL_8) gfc_array_r8;
249 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_4) gfc_array_c4;
250 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_COMPLEX_8) gfc_array_c8;
251 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_4) gfc_array_l4;
252 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, GFC_LOGICAL_8) gfc_array_l8;
254 #define GFC_DTYPE_RANK_MASK 0x07
255 #define GFC_DTYPE_TYPE_SHIFT 3
256 #define GFC_DTYPE_TYPE_MASK 0x38
257 #define GFC_DTYPE_SIZE_SHIFT 6
261 GFC_DTYPE_UNKNOWN = 0,
263 /* TODO: recognize logical types. */
271 #define GFC_DESCRIPTOR_RANK(desc) ((desc)->dtype & GFC_DTYPE_RANK_MASK)
272 #define GFC_DESCRIPTOR_TYPE(desc) (((desc)->dtype & GFC_DTYPE_TYPE_MASK) \
273 >> GFC_DTYPE_TYPE_SHIFT)
274 #define GFC_DESCRIPTOR_SIZE(desc) ((desc)->dtype >> GFC_DTYPE_SIZE_SHIFT)
275 #define GFC_DESCRIPTOR_DATA(desc) ((desc)->data)
276 #define GFC_DESCRIPTOR_DTYPE(desc) ((desc)->dtype)
278 /* Runtime library include. */
279 #define stringize(x) expand_macro(x)
280 #define expand_macro(x) # x
282 /* Runtime options structure. */
286 int stdin_unit, stdout_unit, optional_plus;
287 int allocate_init_flag, allocate_init_value;
291 const char *separator;
294 int use_stderr, all_unbuffered, default_recl;
296 int fpu_round, fpu_precision, fpu_invalid, fpu_denormal, fpu_zerodiv,
297 fpu_overflow, fpu_underflow, fpu_precision_loss;
304 extern options_t options;
305 internal_proto(options);
308 /* Structure for statement options. */
317 /* Runtime errors. The EOR and EOF errors are required to be negative. */
321 ERROR_FIRST = -3, /* Marker for the first error. */
324 ERROR_OK = 0, /* Indicates success, must be zero. */
325 ERROR_OS, /* Operating system error, more info in errno. */
326 ERROR_OPTION_CONFLICT,
328 ERROR_MISSING_OPTION,
337 ERROR_LAST /* Not a real error, the last error # + 1. */
342 /* The filename and line number don't go inside the globals structure.
343 They are set by the rest of the program and must be linked to. */
345 /* Location of the current library call (optional). */
346 extern unsigned line;
347 iexport_data_proto(line);
349 extern char *filename;
350 iexport_data_proto(filename);
352 /* Avoid conflicting prototypes of alloca() in system headers by using
353 GCC's builtin alloca(). */
354 #define gfc_alloca(x) __builtin_alloca(x)
359 extern void library_start (void);
360 internal_proto(library_start);
362 extern void library_end (void);
363 internal_proto(library_end);
365 extern void set_args (int, char **);
366 export_proto(set_args);
368 extern void get_args (int *, char ***);
369 internal_proto(get_args);
373 extern char *itoa (int64_t);
374 internal_proto(itoa);
376 extern char *xtoa (uint64_t);
377 internal_proto(xtoa);
379 extern void os_error (const char *) __attribute__ ((noreturn));
380 internal_proto(os_error);
382 extern void show_locus (void);
383 internal_proto(show_locus);
385 extern void runtime_error (const char *) __attribute__ ((noreturn));
386 iexport_proto(runtime_error);
388 extern void internal_error (const char *) __attribute__ ((noreturn));
389 internal_proto(internal_error);
391 extern const char *get_oserror (void);
392 internal_proto(get_oserror);
394 extern void sys_exit (int) __attribute__ ((noreturn));
395 internal_proto(sys_exit);
397 extern int st_printf (const char *, ...)
398 __attribute__ ((format (printf, 1, 2)));
399 internal_proto(st_printf);
401 extern void st_sprintf (char *, const char *, ...)
402 __attribute__ ((format (printf, 2, 3)));
403 internal_proto(st_sprintf);
405 extern const char *translate_error (int);
406 internal_proto(translate_error);
408 extern void generate_error (int, const char *);
409 internal_proto(generate_error);
413 extern void *get_mem (size_t) __attribute__ ((malloc));
414 internal_proto(get_mem);
416 extern void free_mem (void *);
417 internal_proto(free_mem);
419 extern void *internal_malloc_size (size_t);
420 internal_proto(internal_malloc_size);
422 extern void internal_free (void *);
423 iexport_proto(internal_free);
427 extern int check_buffered (int);
428 internal_proto(check_buffered);
430 extern void init_variables (void);
431 internal_proto(init_variables);
433 extern void show_variables (void);
434 internal_proto(show_variables);
438 extern int find_option (const char *, int, st_option *, const char *);
439 internal_proto(find_option);
441 extern int fstrlen (const char *, int);
442 internal_proto(fstrlen);
444 extern void fstrcpy (char *, int, const char *, int);
445 internal_proto(fstrcpy);
447 extern void cf_strcpy (char *, int, const char *);
448 internal_proto(cf_strcpy);
452 extern void init_units (void);
453 internal_proto(init_units);
455 extern void close_units (void);
456 internal_proto(close_units);
460 extern void stop_numeric (GFC_INTEGER_4);
461 iexport_proto(stop_numeric);
463 /* reshape_packed.c */
465 extern void reshape_packed (char *, index_type, const char *, index_type,
466 const char *, index_type);
467 internal_proto(reshape_packed);
469 /* Repacking functions. */
471 /* ??? These four aren't currently used by the compiler, though we
472 certainly could do so. */
473 GFC_INTEGER_4 *internal_pack_4 (gfc_array_i4 *);
474 internal_proto(internal_pack_4);
476 GFC_INTEGER_8 *internal_pack_8 (gfc_array_i8 *);
477 internal_proto(internal_pack_8);
479 extern void internal_unpack_4 (gfc_array_i4 *, const GFC_INTEGER_4 *);
480 internal_proto(internal_unpack_4);
482 extern void internal_unpack_8 (gfc_array_i8 *, const GFC_INTEGER_8 *);
483 internal_proto(internal_unpack_8);
485 /* string_intrinsics.c */
487 extern GFC_INTEGER_4 compare_string (GFC_INTEGER_4, const char *,
488 GFC_INTEGER_4, const char *);
489 iexport_proto(compare_string);
493 extern void random_seed (GFC_INTEGER_4 * size, gfc_array_i4 * put,
495 iexport_proto(random_seed);
499 extern GFC_REAL_4 normalize_r4_i4 (GFC_UINTEGER_4, GFC_UINTEGER_4);
500 internal_proto(normalize_r4_i4);
502 extern GFC_REAL_8 normalize_r8_i8 (GFC_UINTEGER_8, GFC_UINTEGER_8);
503 internal_proto(normalize_r8_i8);
507 typedef GFC_ARRAY_DESCRIPTOR (GFC_MAX_DIMENSIONS, void) array_t;
509 extern index_type size0 (const array_t * array);
510 iexport_proto(size0);
512 #endif /* LIBGFOR_H */