X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Flibgcc2.h;h=56dc9f7e4d07ce0e4e5b1c4131df9bf0a3217978;hb=7ef5673218d8691ed5ae75852b41920ee2f7bab2;hp=9ca0b505113628342803fbc6318b348830e9cb58;hpb=77d98cfeb600dc6fd392a714950772af5b861f0e;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/libgcc2.h b/gcc/libgcc2.h index 9ca0b505113..56dc9f7e4d0 100644 --- a/gcc/libgcc2.h +++ b/gcc/libgcc2.h @@ -1,12 +1,12 @@ /* Header file for libgcc2.c. */ -/* Copyright (C) 2000, 2001 +/* Copyright (C) 2000, 2001, 2004, 2005, 2009 Free Software Foundation, Inc. This file is part of GCC. GCC is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free -Software Foundation; either version 2, or (at your option) any later +Software Foundation; either version 3, or (at your option) any later version. GCC is distributed in the hope that it will be useful, but WITHOUT ANY @@ -14,31 +14,27 @@ WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. -You should have received a copy of the GNU General Public License -along with GCC; see the file COPYING. If not, write to the Free -Software Foundation, 59 Temple Place - Suite 330, Boston, MA -02111-1307, USA. */ - -/* As a special exception, if you link this library with other files, - some of which are compiled with GCC, to produce an executable, - this library does not by itself cause the resulting executable - to be covered by the GNU General Public License. - This exception does not however invalidate any other reasons why - the executable file might be covered by the GNU General Public License. */ +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ #ifndef GCC_LIBGCC2_H #define GCC_LIBGCC2_H +#ifndef HIDE_EXPORTS +#pragma GCC visibility push(default) +#endif + extern int __gcc_bcmp (const unsigned char *, const unsigned char *, size_t); extern void __clear_cache (char *, char *); extern void __eprintf (const char *, const char *, unsigned int, const char *) __attribute__ ((__noreturn__)); -struct exception_descriptor; -extern short int __get_eh_table_language (struct exception_descriptor *); -extern short int __get_eh_table_version (struct exception_descriptor *); - /* Permit the tm.h file to select the endianness to use just for this file. This is used when the endianness is determined when the compiler is run. */ @@ -47,12 +43,84 @@ extern short int __get_eh_table_version (struct exception_descriptor *); #define LIBGCC2_WORDS_BIG_ENDIAN WORDS_BIG_ENDIAN #endif +#ifndef LIBGCC2_DOUBLE_TYPE_SIZE +#define LIBGCC2_DOUBLE_TYPE_SIZE DOUBLE_TYPE_SIZE +#endif #ifndef LIBGCC2_LONG_DOUBLE_TYPE_SIZE #define LIBGCC2_LONG_DOUBLE_TYPE_SIZE LONG_DOUBLE_TYPE_SIZE #endif -#ifndef MIN_UNITS_PER_WORD -#define MIN_UNITS_PER_WORD UNITS_PER_WORD +#ifndef LIBGCC2_HAS_SF_MODE +#define LIBGCC2_HAS_SF_MODE (BITS_PER_UNIT == 8) +#endif + +#ifndef LIBGCC2_HAS_DF_MODE +#define LIBGCC2_HAS_DF_MODE \ + (BITS_PER_UNIT == 8 \ + && (LIBGCC2_DOUBLE_TYPE_SIZE == 64 \ + || LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64)) +#endif + +#ifndef LIBGCC2_HAS_XF_MODE +#define LIBGCC2_HAS_XF_MODE \ + (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80) +#endif + +#ifndef LIBGCC2_HAS_TF_MODE +#define LIBGCC2_HAS_TF_MODE \ + (BITS_PER_UNIT == 8 && LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128) +#endif + +#ifndef SF_SIZE +#if LIBGCC2_HAS_SF_MODE +#define SF_SIZE FLT_MANT_DIG +#else +#define SF_SIZE 0 +#endif +#endif + +#ifndef DF_SIZE +#if LIBGCC2_HAS_DF_MODE +#if LIBGCC2_DOUBLE_TYPE_SIZE == 64 +#define DF_SIZE DBL_MANT_DIG +#elif LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 64 +#define DF_SIZE LDBL_MANT_DIG +#else +#define DF_SIZE 0 +#endif +#else +#define DF_SIZE 0 +#endif +#endif + +#ifndef XF_SIZE +#if LIBGCC2_HAS_XF_MODE +#define XF_SIZE LDBL_MANT_DIG +#else +#define XF_SIZE 0 +#endif +#endif + +#ifndef TF_SIZE +#if LIBGCC2_HAS_TF_MODE +#define TF_SIZE LDBL_MANT_DIG +#else +#define TF_SIZE 0 +#endif +#endif + +/* FIXME: This #ifdef probably should be removed, ie. enable the test + for mips too. */ +/* Don't use IBM Extended Double TFmode for TI->SF calculations. + The conversion from long double to float suffers from double + rounding, because we convert via double. In other cases, going + through the software fp routines is much slower than the fallback. */ +#ifdef __powerpc__ +#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE == 106) +#elif defined(WIDEST_HARDWARE_FP_SIZE) +#define AVOID_FP_TYPE_CONVERSION(SIZE) (SIZE > WIDEST_HARDWARE_FP_SIZE) +#else +#define AVOID_FP_TYPE_CONVERSION(SIZE) 0 #endif /* In the first part of this file, we are interfacing to calls generated @@ -84,42 +152,25 @@ typedef unsigned int UTItype __attribute__ ((mode (TI))); #endif #endif -#if BITS_PER_UNIT == 8 - +#if LIBGCC2_HAS_SF_MODE typedef float SFtype __attribute__ ((mode (SF))); +typedef _Complex float SCtype __attribute__ ((mode (SC))); +#endif +#if LIBGCC2_HAS_DF_MODE typedef float DFtype __attribute__ ((mode (DF))); - -#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80 +typedef _Complex float DCtype __attribute__ ((mode (DC))); +#endif +#if LIBGCC2_HAS_XF_MODE typedef float XFtype __attribute__ ((mode (XF))); +typedef _Complex float XCtype __attribute__ ((mode (XC))); #endif -#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128 +#if LIBGCC2_HAS_TF_MODE typedef float TFtype __attribute__ ((mode (TF))); +typedef _Complex float TCtype __attribute__ ((mode (TC))); #endif -#else /* BITS_PER_UNIT != 8 */ - -/* On dsp's there are usually qf/hf/tqf modes used instead of the above. - For now we don't support them in libgcc2.c. */ - -#undef L_fixdfdi -#undef L_fixsfdi -#undef L_fixtfdi -#undef L_fixunsdfdi -#undef L_fixunsdfsi -#undef L_fixunssfdi -#undef L_fixunssfsi -#undef L_fixunstfdi -#undef L_fixunsxfdi -#undef L_fixunsxfsi -#undef L_fixxfdi -#undef L_floatdidf -#undef L_floatdisf -#undef L_floatditf -#undef L_floatdixf - -#endif /* BITS_PER_UNIT != 8 */ - -typedef int word_type __attribute__ ((mode (__word__))); +typedef int cmp_return_type __attribute__((mode (__libgcc_cmp_return__))); +typedef int shift_count_type __attribute__((mode (__libgcc_shift_count__))); /* Make sure that we don't accidentally use any normal C language built-in type names in the first part of this file. Instead we want to use *only* @@ -135,7 +186,17 @@ typedef int word_type __attribute__ ((mode (__word__))); #define float bogus_type #define double bogus_type -#if MIN_UNITS_PER_WORD > 4 +/* Versions prior to 3.4.4 were not taking into account the word size for + the 5 trapping arithmetic functions absv, addv, subv, mulv and negv. As + a consequence, the si and di variants were always and the only ones emitted. + To maintain backward compatibility, COMPAT_SIMODE_TRAPPING_ARITHMETIC is + defined on platforms where it makes sense to still have the si variants + emitted. As a bonus, their implementation is now correct. Note that the + same mechanism should have been implemented for the di variants, but it + turns out that no platform would define COMPAT_DIMODE_TRAPPING_ARITHMETIC + if it existed. */ + +#if LIBGCC2_UNITS_PER_WORD == 8 #define W_TYPE_SIZE (8 * BITS_PER_UNIT) #define Wtype DItype #define UWtype UDItype @@ -145,8 +206,8 @@ typedef int word_type __attribute__ ((mode (__word__))); #define UDWtype UTItype #define __NW(a,b) __ ## a ## di ## b #define __NDW(a,b) __ ## a ## ti ## b -#elif MIN_UNITS_PER_WORD > 2 \ - || (MIN_UNITS_PER_WORD > 1 && LONG_LONG_TYPE_SIZE > 32) +#define COMPAT_SIMODE_TRAPPING_ARITHMETIC +#elif LIBGCC2_UNITS_PER_WORD == 4 #define W_TYPE_SIZE (4 * BITS_PER_UNIT) #define Wtype SItype #define UWtype USItype @@ -156,7 +217,7 @@ typedef int word_type __attribute__ ((mode (__word__))); #define UDWtype UDItype #define __NW(a,b) __ ## a ## si ## b #define __NDW(a,b) __ ## a ## di ## b -#elif MIN_UNITS_PER_WORD > 1 +#elif LIBGCC2_UNITS_PER_WORD == 2 #define W_TYPE_SIZE (2 * BITS_PER_UNIT) #define Wtype HItype #define UWtype UHItype @@ -181,6 +242,18 @@ typedef int word_type __attribute__ ((mode (__word__))); #define Wtype_MAX ((Wtype)(((UWtype)1 << (W_TYPE_SIZE - 1)) - 1)) #define Wtype_MIN (- Wtype_MAX - 1) +#if W_TYPE_SIZE == 8 +# define Wtype_MAXp1_F 0x1p8f +#elif W_TYPE_SIZE == 16 +# define Wtype_MAXp1_F 0x1p16f +#elif W_TYPE_SIZE == 32 +# define Wtype_MAXp1_F 0x1p32f +#elif W_TYPE_SIZE == 64 +# define Wtype_MAXp1_F 0x1p64f +#else +# error "expand the table" +#endif + #define __muldi3 __NDW(mul,3) #define __divdi3 __NDW(div,3) #define __udivdi3 __NDW(udiv,3) @@ -205,11 +278,26 @@ typedef int word_type __attribute__ ((mode (__word__))); #define __floatditf __NDW(float,tf) #define __floatdidf __NDW(float,df) #define __floatdisf __NDW(float,sf) +#define __floatundixf __NDW(floatun,xf) +#define __floatunditf __NDW(floatun,tf) +#define __floatundidf __NDW(floatun,df) +#define __floatundisf __NDW(floatun,sf) #define __fixunsxfSI __NW(fixunsxf,) #define __fixunstfSI __NW(fixunstf,) #define __fixunsdfSI __NW(fixunsdf,) #define __fixunssfSI __NW(fixunssf,) +#define __absvSI2 __NW(absv,2) +#define __addvSI3 __NW(addv,3) +#define __subvSI3 __NW(subv,3) +#define __mulvSI3 __NW(mulv,3) +#define __negvSI2 __NW(negv,2) +#define __absvDI2 __NDW(absv,2) +#define __addvDI3 __NDW(addv,3) +#define __subvDI3 __NDW(subv,3) +#define __mulvDI3 __NDW(mulv,3) +#define __negvDI2 __NDW(negv,2) + #define __ffsSI2 __NW(ffs,2) #define __clzSI2 __NW(clz,2) #define __ctzSI2 __NW(ctz,2) @@ -238,9 +326,9 @@ extern UDWtype __udivmoddi4 (UDWtype, UDWtype, UDWtype *); extern DWtype __negdi2 (DWtype); #endif -extern DWtype __lshrdi3 (DWtype, word_type); -extern DWtype __ashldi3 (DWtype, word_type); -extern DWtype __ashrdi3 (DWtype, word_type); +extern DWtype __lshrdi3 (DWtype, shift_count_type); +extern DWtype __ashldi3 (DWtype, shift_count_type); +extern DWtype __ashrdi3 (DWtype, shift_count_type); /* __udiv_w_sdiv is static inline when building other libgcc2 portions. */ #if (!defined(L_udivdi3) && !defined(L_divdi3) && \ @@ -248,43 +336,78 @@ extern DWtype __ashrdi3 (DWtype, word_type); extern UWtype __udiv_w_sdiv (UWtype *, UWtype, UWtype, UWtype); #endif -extern word_type __cmpdi2 (DWtype, DWtype); -extern word_type __ucmpdi2 (DWtype, DWtype); +extern cmp_return_type __cmpdi2 (DWtype, DWtype); +extern cmp_return_type __ucmpdi2 (DWtype, DWtype); -extern Wtype __absvsi2 (Wtype); -extern DWtype __absvdi2 (DWtype); -extern Wtype __addvsi3 (Wtype, Wtype); -extern DWtype __addvdi3 (DWtype, DWtype); -extern Wtype __subvsi3 (Wtype, Wtype); -extern DWtype __subvdi3 (DWtype, DWtype); -extern Wtype __mulvsi3 (Wtype, Wtype); -extern DWtype __mulvdi3 (DWtype, DWtype); -extern Wtype __negvsi2 (Wtype); -extern DWtype __negvdi2 (DWtype); +#if MIN_UNITS_PER_WORD > 1 +extern SItype __bswapsi2 (SItype); +#endif +#if LONG_LONG_TYPE_SIZE > 32 +extern DItype __bswapdi2 (DItype); +#endif -#if BITS_PER_UNIT == 8 -extern DWtype __fixdfdi (DFtype); +extern Wtype __absvSI2 (Wtype); +extern Wtype __addvSI3 (Wtype, Wtype); +extern Wtype __subvSI3 (Wtype, Wtype); +extern Wtype __mulvSI3 (Wtype, Wtype); +extern Wtype __negvSI2 (Wtype); +extern DWtype __absvDI2 (DWtype); +extern DWtype __addvDI3 (DWtype, DWtype); +extern DWtype __subvDI3 (DWtype, DWtype); +extern DWtype __mulvDI3 (DWtype, DWtype); +extern DWtype __negvDI2 (DWtype); + +#ifdef COMPAT_SIMODE_TRAPPING_ARITHMETIC +extern SItype __absvsi2 (SItype); +extern SItype __addvsi3 (SItype, SItype); +extern SItype __subvsi3 (SItype, SItype); +extern SItype __mulvsi3 (SItype, SItype); +extern SItype __negvsi2 (SItype); +#endif /* COMPAT_SIMODE_TRAPPING_ARITHMETIC */ + +#undef int +#if LIBGCC2_HAS_SF_MODE extern DWtype __fixsfdi (SFtype); -extern DFtype __floatdidf (DWtype); extern SFtype __floatdisf (DWtype); -extern UWtype __fixunsdfSI (DFtype); +extern SFtype __floatundisf (UDWtype); extern UWtype __fixunssfSI (SFtype); -extern DWtype __fixunsdfDI (DFtype); -extern DWtype __fixunssfDI (SFtype); +extern UDWtype __fixunssfDI (SFtype); +extern SFtype __powisf2 (SFtype, int); +extern SCtype __divsc3 (SFtype, SFtype, SFtype, SFtype); +extern SCtype __mulsc3 (SFtype, SFtype, SFtype, SFtype); +#endif +#if LIBGCC2_HAS_DF_MODE +extern DWtype __fixdfdi (DFtype); +extern DFtype __floatdidf (DWtype); +extern DFtype __floatundidf (UDWtype); +extern UWtype __fixunsdfSI (DFtype); +extern UDWtype __fixunsdfDI (DFtype); +extern DFtype __powidf2 (DFtype, int); +extern DCtype __divdc3 (DFtype, DFtype, DFtype, DFtype); +extern DCtype __muldc3 (DFtype, DFtype, DFtype, DFtype); +#endif -#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 80 +#if LIBGCC2_HAS_XF_MODE extern DWtype __fixxfdi (XFtype); -extern DWtype __fixunsxfDI (XFtype); +extern UDWtype __fixunsxfDI (XFtype); extern XFtype __floatdixf (DWtype); +extern XFtype __floatundixf (UDWtype); extern UWtype __fixunsxfSI (XFtype); +extern XFtype __powixf2 (XFtype, int); +extern XCtype __divxc3 (XFtype, XFtype, XFtype, XFtype); +extern XCtype __mulxc3 (XFtype, XFtype, XFtype, XFtype); #endif -#if LIBGCC2_LONG_DOUBLE_TYPE_SIZE == 128 -extern DWtype __fixunstfDI (TFtype); +#if LIBGCC2_HAS_TF_MODE +extern UDWtype __fixunstfDI (TFtype); extern DWtype __fixtfdi (TFtype); extern TFtype __floatditf (DWtype); +extern TFtype __floatunditf (UDWtype); +extern TFtype __powitf2 (TFtype, int); +extern TCtype __divtc3 (TFtype, TFtype, TFtype, TFtype); +extern TCtype __multc3 (TFtype, TFtype, TFtype, TFtype); #endif -#endif /* BITS_PER_UNIT == 8 */ +#define int bogus_type /* DWstructs are pairs of Wtype values in the order determined by LIBGCC2_WORDS_BIG_ENDIAN. */ @@ -305,6 +428,35 @@ typedef union DWtype ll; } DWunion; +/* Defined for L_popcount_tab. Exported here because some targets may + want to use it for their own versions of the __popcount builtins. */ +extern const UQItype __popcount_tab[256]; + +/* Defined for L_clz. Exported here because some targets may want to use + it for their own versions of the __clz builtins. It contains the bit + position of the first set bit for the numbers 0 - 255. This avoids the + need for a separate table for the __ctz builtins. */ +extern const UQItype __clz_tab[256]; + #include "longlong.h" +#undef int +extern int __clzDI2 (UDWtype); +extern int __clzSI2 (UWtype); +extern int __ctzSI2 (UWtype); +extern int __ffsSI2 (UWtype); +extern int __ffsDI2 (DWtype); +extern int __ctzDI2 (UDWtype); +extern int __popcountSI2 (UWtype); +extern int __popcountDI2 (UDWtype); +extern int __paritySI2 (UWtype); +extern int __parityDI2 (UDWtype); +#define int bogus_type + +extern void __enable_execute_stack (void *); + +#ifndef HIDE_EXPORTS +#pragma GCC visibility pop +#endif + #endif /* ! GCC_LIBGCC2_H */