1 /* Header file for libgcc2.c. */
2 /* Copyright (C) 2000, 2001, 2004
3 Free Software Foundation, Inc.
5 This file is part of GCC.
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 2, or (at your option) any later
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING. If not, write to the Free
19 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
22 /* As a special exception, if you link this library with other files,
23 some of which are compiled with GCC, to produce an executable,
24 this library does not by itself cause the resulting executable
25 to be covered by the GNU General Public License.
26 This exception does not however invalidate any other reasons why
27 the executable file might be covered by the GNU General Public License. */
34 #pragma GCC visibility push(default)
37 extern int __gcc_bcmp (const unsigned char *, const unsigned char *, size_t);
38 extern void __clear_cache (char *, char *);
39 extern void __eprintf (const char *, const char *, unsigned int, const char *)
40 __attribute__ ((__noreturn__
));
42 struct exception_descriptor
;
43 extern short int __get_eh_table_language (struct exception_descriptor
*);
44 extern short int __get_eh_table_version (struct exception_descriptor
*);
46 /* Permit the tm.h file to select the endianness to use just for this
47 file. This is used when the endianness is determined when the
50 #ifndef LIBGCC2_WORDS_BIG_ENDIAN
51 #define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
54 #ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
55 #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
58 #ifndef MIN_UNITS_PER_WORD
59 #define MIN_UNITS_PER_WORD UNITS_PER_WORD
62 /* In the first part of this file, we are interfacing to calls generated
63 by the compiler itself. These calls pass values into these routines
64 which have very specific modes (rather than very specific types), and
65 these compiler-generated calls also expect any return values to have
66 very specific modes (rather than very specific types). Thus, we need
67 to avoid using regular C language type names in this part of the file
68 because the sizes for those types can be configured to be anything.
69 Instead we use the following special type names. */
71 typedef int QItype
__attribute__ ((mode (QI
)));
72 typedef unsigned int UQItype
__attribute__ ((mode (QI
)));
73 typedef int HItype
__attribute__ ((mode (HI
)));
74 typedef unsigned int UHItype
__attribute__ ((mode (HI
)));
75 #if MIN_UNITS_PER_WORD > 1
76 /* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1. */
77 typedef int SItype
__attribute__ ((mode (SI
)));
78 typedef unsigned int USItype
__attribute__ ((mode (SI
)));
79 #if LONG_LONG_TYPE_SIZE > 32
80 /* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2. */
81 typedef int DItype
__attribute__ ((mode (DI
)));
82 typedef unsigned int UDItype
__attribute__ ((mode (DI
)));
83 #if MIN_UNITS_PER_WORD > 4
84 /* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4. */
85 typedef int TItype
__attribute__ ((mode (TI
)));
86 typedef unsigned int UTItype
__attribute__ ((mode (TI
)));
91 #if BITS_PER_UNIT == 8
93 typedef float SFtype
__attribute__ ((mode (SF
)));
94 typedef float DFtype
__attribute__ ((mode (DF
)));
96 #if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80
97 typedef float XFtype
__attribute__ ((mode (XF
)));
99 #if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128
100 typedef float TFtype
__attribute__ ((mode (TF
)));
103 #else /* BITS_PER_UNIT != 8 */
105 /* On dsp's there are usually qf/hf/tqf modes used instead of the above.
106 For now we don't support them in libgcc2.c. */
124 #endif /* BITS_PER_UNIT != 8 */
126 typedef int word_type
__attribute__ ((mode (__word__
)));
128 /* Make sure that we don't accidentally use any normal C language built-in
129 type names in the first part of this file. Instead we want to use *only*
130 the type names defined above. The following macro definitions insure
131 that if we *do* accidentally use some normal C language built-in type name,
132 we will get a syntax error. */
134 #define char bogus_type
135 #define short bogus_type
136 #define int bogus_type
137 #define long bogus_type
138 #define unsigned bogus_type
139 #define float bogus_type
140 #define double bogus_type
142 #if MIN_UNITS_PER_WORD > 4
143 #define W_TYPE_SIZE (8 * BITS_PER_UNIT)
145 #define UWtype UDItype
146 #define HWtype DItype
147 #define UHWtype UDItype
148 #define DWtype TItype
149 #define UDWtype UTItype
150 #define __NW(a,b) __ ## a ## di ## b
151 #define __NDW(a,b) __ ## a ## ti ## b
152 #elif MIN_UNITS_PER_WORD > 2 \
153 || (MIN_UNITS_PER_WORD > 1 && LONG_LONG_TYPE_SIZE > 32)
154 #define W_TYPE_SIZE (4 * BITS_PER_UNIT)
156 #define UWtype USItype
157 #define HWtype SItype
158 #define UHWtype USItype
159 #define DWtype DItype
160 #define UDWtype UDItype
161 #define __NW(a,b) __ ## a ## si ## b
162 #define __NDW(a,b) __ ## a ## di ## b
163 #elif MIN_UNITS_PER_WORD > 1
164 #define W_TYPE_SIZE (2 * BITS_PER_UNIT)
166 #define UWtype UHItype
167 #define HWtype HItype
168 #define UHWtype UHItype
169 #define DWtype SItype
170 #define UDWtype USItype
171 #define __NW(a,b) __ ## a ## hi ## b
172 #define __NDW(a,b) __ ## a ## si ## b
174 #define W_TYPE_SIZE BITS_PER_UNIT
176 #define UWtype UQItype
177 #define HWtype QItype
178 #define UHWtype UQItype
179 #define DWtype HItype
180 #define UDWtype UHItype
181 #define __NW(a,b) __ ## a ## qi ## b
182 #define __NDW(a,b) __ ## a ## hi ## b
185 #define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1))
186 #define Wtype_MIN (- Wtype_MAX - 1)
188 #define __muldi3 __NDW(mul,3)
189 #define __divdi3 __NDW(div,3)
190 #define __udivdi3 __NDW(udiv,3)
191 #define __moddi3 __NDW(mod,3)
192 #define __umoddi3 __NDW(umod,3)
193 #define __negdi2 __NDW(neg,2)
194 #define __lshrdi3 __NDW(lshr,3)
195 #define __ashldi3 __NDW(ashl,3)
196 #define __ashrdi3 __NDW(ashr,3)
197 #define __cmpdi2 __NDW(cmp,2)
198 #define __ucmpdi2 __NDW(ucmp,2)
199 #define __udivmoddi4 __NDW(udivmod,4)
200 #define __fixunstfDI __NDW(fixunstf,)
201 #define __fixtfdi __NDW(fixtf,)
202 #define __fixunsxfDI __NDW(fixunsxf,)
203 #define __fixxfdi __NDW(fixxf,)
204 #define __fixunsdfDI __NDW(fixunsdf,)
205 #define __fixdfdi __NDW(fixdf,)
206 #define __fixunssfDI __NDW(fixunssf,)
207 #define __fixsfdi __NDW(fixsf,)
208 #define __floatdixf __NDW(float,xf)
209 #define __floatditf __NDW(float,tf)
210 #define __floatdidf __NDW(float,df)
211 #define __floatdisf __NDW(float,sf)
212 #define __fixunsxfSI __NW(fixunsxf,)
213 #define __fixunstfSI __NW(fixunstf,)
214 #define __fixunsdfSI __NW(fixunsdf,)
215 #define __fixunssfSI __NW(fixunssf,)
217 #define __ffsSI2 __NW(ffs,2)
218 #define __clzSI2 __NW(clz,2)
219 #define __ctzSI2 __NW(ctz,2)
220 #define __popcountSI2 __NW(popcount,2)
221 #define __paritySI2 __NW(parity,2)
222 #define __ffsDI2 __NDW(ffs,2)
223 #define __clzDI2 __NDW(clz,2)
224 #define __ctzDI2 __NDW(ctz,2)
225 #define __popcountDI2 __NDW(popcount,2)
226 #define __parityDI2 __NDW(parity,2)
228 extern DWtype
__muldi3 (DWtype
, DWtype
);
229 extern DWtype
__divdi3 (DWtype
, DWtype
);
230 extern UDWtype
__udivdi3 (UDWtype
, UDWtype
);
231 extern UDWtype
__umoddi3 (UDWtype
, UDWtype
);
232 extern DWtype
__moddi3 (DWtype
, DWtype
);
234 /* __udivmoddi4 is static inline when building other libgcc2 portions. */
235 #if (!defined (L_udivdi3) && !defined (L_divdi3) && \
236 !defined (L_umoddi3) && !defined (L_moddi3))
237 extern UDWtype
__udivmoddi4 (UDWtype
, UDWtype
, UDWtype
*);
240 /* __negdi2 is static inline when building other libgcc2 portions. */
241 #if !defined(L_divdi3) && !defined(L_moddi3)
242 extern DWtype
__negdi2 (DWtype
);
245 extern DWtype
__lshrdi3 (DWtype
, word_type
);
246 extern DWtype
__ashldi3 (DWtype
, word_type
);
247 extern DWtype
__ashrdi3 (DWtype
, word_type
);
249 /* __udiv_w_sdiv is static inline when building other libgcc2 portions. */
250 #if (!defined(L_udivdi3) && !defined(L_divdi3) && \
251 !defined(L_umoddi3) && !defined(L_moddi3))
252 extern UWtype
__udiv_w_sdiv (UWtype
*, UWtype
, UWtype
, UWtype
);
255 extern word_type
__cmpdi2 (DWtype
, DWtype
);
256 extern word_type
__ucmpdi2 (DWtype
, DWtype
);
258 extern Wtype
__absvsi2 (Wtype
);
259 extern DWtype
__absvdi2 (DWtype
);
260 extern Wtype
__addvsi3 (Wtype
, Wtype
);
261 extern DWtype
__addvdi3 (DWtype
, DWtype
);
262 extern Wtype
__subvsi3 (Wtype
, Wtype
);
263 extern DWtype
__subvdi3 (DWtype
, DWtype
);
264 extern Wtype
__mulvsi3 (Wtype
, Wtype
);
265 extern DWtype
__mulvdi3 (DWtype
, DWtype
);
266 extern Wtype
__negvsi2 (Wtype
);
267 extern DWtype
__negvdi2 (DWtype
);
269 #if BITS_PER_UNIT == 8
270 extern DWtype
__fixdfdi (DFtype
);
271 extern DWtype
__fixsfdi (SFtype
);
272 extern DFtype
__floatdidf (DWtype
);
273 extern SFtype
__floatdisf (DWtype
);
274 extern UWtype
__fixunsdfSI (DFtype
);
275 extern UWtype
__fixunssfSI (SFtype
);
276 extern DWtype
__fixunsdfDI (DFtype
);
277 extern DWtype
__fixunssfDI (SFtype
);
279 #if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80
280 extern DWtype
__fixxfdi (XFtype
);
281 extern DWtype
__fixunsxfDI (XFtype
);
282 extern XFtype
__floatdixf (DWtype
);
283 extern UWtype
__fixunsxfSI (XFtype
);
286 #if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128
287 extern DWtype
__fixunstfDI (TFtype
);
288 extern DWtype
__fixtfdi (TFtype
);
289 extern TFtype
__floatditf (DWtype
);
291 #endif /* BITS_PER_UNIT == 8 */
293 /* DWstructs are pairs of Wtype values in the order determined by
294 LIBGCC2_WORDS_BIG_ENDIAN. */
296 #if LIBGCC2_WORDS_BIG_ENDIAN
297 struct DWstruct
{Wtype high
, low
;};
299 struct DWstruct
{Wtype low
, high
;};
302 /* We need this union to unpack/pack DImode values, since we don't have
303 any arithmetic yet. Incoming DImode parameters are stored into the
304 `ll' field, and the unpacked result is read from the struct `s'. */
312 #include "longlong.h"
315 extern int __clzDI2 (UDWtype
);
316 extern int __clzSI2 (UWtype
);
317 extern int __ctzSI2 (UWtype
);
318 extern int __ffsSI2 (UWtype
);
319 extern int __ffsDI2 (DWtype
);
320 extern int __ctzDI2 (UDWtype
);
321 extern int __popcountSI2 (UWtype
);
322 extern int __popcountDI2 (UDWtype
);
323 extern int __paritySI2 (UWtype
);
324 extern int __parityDI2 (UDWtype
);
325 #define int bogus_type
327 extern void __enable_execute_stack (void *);
330 #pragma GCC visibility pop
333 #endif /* ! GCC_LIBGCC2_H */