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302 lines
9.5 KiB
C
302 lines
9.5 KiB
C
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/* Header file for libgcc2.c. */
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/* Copyright (C) 2000, 2001
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Free Software Foundation, Inc.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free
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Software Foundation; either version 2, or (at your option) any later
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version.
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY
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WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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#ifndef GCC_LIBGCC2_H
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#define GCC_LIBGCC2_H
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extern int __gcc_bcmp (const unsigned char *, const unsigned char *, size_t);
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extern void __clear_cache (char *, char *);
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extern void __eprintf (const char *, const char *, unsigned int, const char *)
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__attribute__ ((__noreturn__));
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struct bb;
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extern void __bb_exit_func (void);
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extern void __bb_init_func (struct bb *);
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extern void __bb_fork_func (void);
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extern void __bb_trace_func (void);
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extern void __bb_trace_ret (void);
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extern void __bb_init_trace_func (struct bb *, unsigned long);
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struct exception_descriptor;
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extern short int __get_eh_table_language (struct exception_descriptor *);
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extern short int __get_eh_table_version (struct exception_descriptor *);
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/* Permit the tm.h file to select the endianness to use just for this
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file. This is used when the endianness is determined when the
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compiler is run. */
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#ifndef LIBGCC2_WORDS_BIG_ENDIAN
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#define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN
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#endif
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#ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE
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#define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE
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#endif
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#ifndef MIN_UNITS_PER_WORD
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#define MIN_UNITS_PER_WORD UNITS_PER_WORD
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#endif
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/* In the first part of this file, we are interfacing to calls generated
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by the compiler itself. These calls pass values into these routines
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which have very specific modes (rather than very specific types), and
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these compiler-generated calls also expect any return values to have
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very specific modes (rather than very specific types). Thus, we need
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to avoid using regular C language type names in this part of the file
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because the sizes for those types can be configured to be anything.
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Instead we use the following special type names. */
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typedef int QItype __attribute__ ((mode (QI)));
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typedef unsigned int UQItype __attribute__ ((mode (QI)));
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typedef int HItype __attribute__ ((mode (HI)));
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typedef unsigned int UHItype __attribute__ ((mode (HI)));
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#if MIN_UNITS_PER_WORD > 1
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/* These typedefs are usually forbidden on dsp's with UNITS_PER_WORD 1 */
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typedef int SItype __attribute__ ((mode (SI)));
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typedef unsigned int USItype __attribute__ ((mode (SI)));
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#if LONG_LONG_TYPE_SIZE > 32
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/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 2 */
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typedef int DItype __attribute__ ((mode (DI)));
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typedef unsigned int UDItype __attribute__ ((mode (DI)));
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#if MIN_UNITS_PER_WORD > 4
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/* These typedefs are usually forbidden on archs with UNITS_PER_WORD 4 */
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typedef int TItype __attribute__ ((mode (TI)));
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typedef unsigned int UTItype __attribute__ ((mode (TI)));
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#endif
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#endif
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#endif
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#if BITS_PER_UNIT == 8
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typedef float SFtype __attribute__ ((mode (SF)));
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typedef float DFtype __attribute__ ((mode (DF)));
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#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96
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typedef float XFtype __attribute__ ((mode (XF)));
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#endif
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#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128
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typedef float TFtype __attribute__ ((mode (TF)));
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#endif
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#else /* BITS_PER_UNIT != 8 */
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/* On dsp's there are usually qf/hf/tqf modes used instead of the above.
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For now we don't support them in libgcc2.c. */
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#undef L_fixdfdi
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#undef L_fixsfdi
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#undef L_fixtfdi
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#undef L_fixunsdfdi
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#undef L_fixunsdfsi
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#undef L_fixunssfdi
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#undef L_fixunssfsi
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#undef L_fixunstfdi
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#undef L_fixunsxfdi
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#undef L_fixunsxfsi
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#undef L_fixxfdi
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#undef L_floatdidf
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#undef L_floatdisf
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#undef L_floatditf
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#undef L_floatdixf
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#endif /* BITS_PER_UNIT != 8 */
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typedef int word_type __attribute__ ((mode (__word__)));
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/* Make sure that we don't accidentally use any normal C language built-in
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type names in the first part of this file. Instead we want to use *only*
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the type names defined above. The following macro definitions insure
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that if we *do* accidentally use some normal C language built-in type name,
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we will get a syntax error. */
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#define char bogus_type
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#define short bogus_type
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#define int bogus_type
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#define long bogus_type
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#define unsigned bogus_type
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#define float bogus_type
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#define double bogus_type
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#if MIN_UNITS_PER_WORD > 4
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#define W_TYPE_SIZE (8 * BITS_PER_UNIT)
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#define Wtype DItype
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#define UWtype UDItype
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#define HWtype DItype
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#define UHWtype UDItype
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#define DWtype TItype
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#define UDWtype UTItype
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#define __NW(a,b) __ ## a ## di ## b
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#define __NDW(a,b) __ ## a ## ti ## b
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#elif MIN_UNITS_PER_WORD > 2 \
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|| (MIN_UNITS_PER_WORD > 1 && LONG_LONG_TYPE_SIZE > 32)
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#define W_TYPE_SIZE (4 * BITS_PER_UNIT)
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#define Wtype SItype
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#define UWtype USItype
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#define HWtype SItype
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#define UHWtype USItype
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#define DWtype DItype
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#define UDWtype UDItype
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#define __NW(a,b) __ ## a ## si ## b
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#define __NDW(a,b) __ ## a ## di ## b
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#elif MIN_UNITS_PER_WORD > 1
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#define W_TYPE_SIZE (2 * BITS_PER_UNIT)
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#define Wtype HItype
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#define UWtype UHItype
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#define HWtype HItype
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#define UHWtype UHItype
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#define DWtype SItype
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#define UDWtype USItype
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#define __NW(a,b) __ ## a ## hi ## b
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#define __NDW(a,b) __ ## a ## si ## b
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#else
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#define W_TYPE_SIZE BITS_PER_UNIT
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#define Wtype QItype
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#define UWtype UQItype
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#define HWtype QItype
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#define UHWtype UQItype
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#define DWtype HItype
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#define UDWtype UHItype
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#define __NW(a,b) __ ## a ## qi ## b
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#define __NDW(a,b) __ ## a ## hi ## b
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#endif
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#define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1))
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#define Wtype_MIN (- Wtype_MAX - 1)
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#define __muldi3 __NDW(mul,3)
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#define __divdi3 __NDW(div,3)
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#define __udivdi3 __NDW(udiv,3)
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#define __moddi3 __NDW(mod,3)
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#define __umoddi3 __NDW(umod,3)
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#define __negdi2 __NDW(neg,2)
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#define __lshrdi3 __NDW(lshr,3)
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#define __ashldi3 __NDW(ashl,3)
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#define __ashrdi3 __NDW(ashr,3)
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#define __ffsdi2 __NDW(ffs,2)
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#define __cmpdi2 __NDW(cmp,2)
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#define __ucmpdi2 __NDW(ucmp,2)
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#define __udivmoddi4 __NDW(udivmod,4)
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#define __fixunstfDI __NDW(fixunstf,)
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#define __fixtfdi __NDW(fixtf,)
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#define __fixunsxfDI __NDW(fixunsxf,)
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#define __fixxfdi __NDW(fixxf,)
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#define __fixunsdfDI __NDW(fixunsdf,)
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#define __fixdfdi __NDW(fixdf,)
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#define __fixunssfDI __NDW(fixunssf,)
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#define __fixsfdi __NDW(fixsf,)
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#define __floatdixf __NDW(float,xf)
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#define __floatditf __NDW(float,tf)
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#define __floatdidf __NDW(float,df)
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#define __floatdisf __NDW(float,sf)
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#define __fixunsxfSI __NW(fixunsxf,)
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#define __fixunstfSI __NW(fixunstf,)
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#define __fixunsdfSI __NW(fixunsdf,)
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#define __fixunssfSI __NW(fixunssf,)
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extern DWtype __muldi3 (DWtype, DWtype);
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extern DWtype __divdi3 (DWtype, DWtype);
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extern UDWtype __udivdi3 (UDWtype, UDWtype);
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extern UDWtype __umoddi3 (UDWtype, UDWtype);
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extern DWtype __moddi3 (DWtype, DWtype);
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/* __udivmoddi4 is static inline when building other libgcc2 portions. */
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#if (!defined (L_udivdi3) && !defined (L_divdi3) && \
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!defined (L_umoddi3) && !defined (L_moddi3))
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extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *);
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#endif
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/* __negdi2 is static inline when building other libgcc2 portions. */
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#if !defined(L_divdi3) && !defined(L_moddi3)
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extern DWtype __negdi2 (DWtype);
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#endif
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extern DWtype __lshrdi3 (DWtype, word_type);
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extern DWtype __ashldi3 (DWtype, word_type);
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extern DWtype __ashrdi3 (DWtype, word_type);
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extern DWtype __ffsdi2 (DWtype);
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/* __udiv_w_sdiv is static inline when building other libgcc2 portions. */
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#if (!defined(L_udivdi3) && !defined(L_divdi3) && \
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!defined(L_umoddi3) && !defined(L_moddi3))
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extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype);
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#endif
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extern word_type __cmpdi2 (DWtype, DWtype);
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extern word_type __ucmpdi2 (DWtype, DWtype);
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extern Wtype __absvsi2 (Wtype);
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extern DWtype __absvdi2 (DWtype);
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extern Wtype __addvsi3 (Wtype, Wtype);
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extern DWtype __addvdi3 (DWtype, DWtype);
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extern Wtype __subvsi3 (Wtype, Wtype);
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extern DWtype __subvdi3 (DWtype, DWtype);
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extern Wtype __mulvsi3 (Wtype, Wtype);
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extern DWtype __mulvdi3 (DWtype, DWtype);
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extern Wtype __negvsi2 (Wtype);
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extern DWtype __negvdi2 (DWtype);
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#if BITS_PER_UNIT == 8
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extern DWtype __fixdfdi (DFtype);
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extern DWtype __fixsfdi (SFtype);
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extern DFtype __floatdidf (DWtype);
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extern SFtype __floatdisf (DWtype);
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extern UWtype __fixunsdfSI (DFtype);
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extern UWtype __fixunssfSI (SFtype);
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extern DWtype __fixunsdfDI (DFtype);
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extern DWtype __fixunssfDI (SFtype);
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#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 96
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extern DWtype __fixxfdi (XFtype);
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extern DWtype __fixunsxfDI (XFtype);
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extern XFtype __floatdixf (DWtype);
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extern UWtype __fixunsxfSI (XFtype);
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#endif
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#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128
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extern DWtype __fixunstfDI (TFtype);
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extern DWtype __fixtfdi (TFtype);
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extern TFtype __floatditf (DWtype);
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#endif
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#endif /* BITS_PER_UNIT == 8 */
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/* DWstructs are pairs of Wtype values in the order determined by
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LIBGCC2_WORDS_BIG_ENDIAN. */
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#if LIBGCC2_WORDS_BIG_ENDIAN
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struct DWstruct {Wtype high, low;};
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#else
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struct DWstruct {Wtype low, high;};
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#endif
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/* We need this union to unpack/pack DImode values, since we don't have
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any arithmetic yet. Incoming DImode parameters are stored into the
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`ll' field, and the unpacked result is read from the struct `s'. */
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typedef union
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{
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struct DWstruct s;
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DWtype ll;
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} DWunion;
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#include "longlong.h"
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#endif /* ! GCC_LIBGCC2_H */
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