/* * copyright (c) 2006 Michael Niedermayer <[email protected]> * * This file is part of FFmpeg. * * FFmpeg is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * FFmpeg is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with FFmpeg; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #ifndef AVUTIL_X86_ASM_H #define AVUTIL_X86_ASM_H #include <stdint.h> #include "config.h" xmm_reg; ymm_reg; #if ARCH_X86_64 #define FF_OPSIZE … #define FF_REG_a … #define FF_REG_b … #define FF_REG_c … #define FF_REG_d … #define FF_REG_D … #define FF_REG_S … #define FF_PTR_SIZE … x86_reg; /* FF_REG_SP is defined in Solaris sys headers, so use FF_REG_sp */ #define FF_REG_sp … #define FF_REG_BP … #define FF_REGBP … #define FF_REGa … #define FF_REGb … #define FF_REGc … #define FF_REGd … #define FF_REGSP … #elif ARCH_X86_32 #define FF_OPSIZE … #define FF_REG_a … #define FF_REG_b … #define FF_REG_c … #define FF_REG_d … #define FF_REG_D … #define FF_REG_S … #define FF_PTR_SIZE … typedef int32_t x86_reg; #define FF_REG_sp … #define FF_REG_BP … #define FF_REGBP … #define FF_REGa … #define FF_REGb … #define FF_REGc … #define FF_REGd … #define FF_REGSP … #else typedef int x86_reg; #endif #define HAVE_7REGS … #define HAVE_6REGS … #if ARCH_X86_64 && defined(PIC) #define BROKEN_RELOCATIONS … #endif /* * If gcc is not set to support sse (-msse) it will not accept xmm registers * in the clobber list for inline asm. XMM_CLOBBERS takes a list of xmm * registers to be marked as clobbered and evaluates to nothing if they are * not supported, or to the list itself if they are supported. Since a clobber * list may not be empty, XMM_CLOBBERS_ONLY should be used if the xmm * registers are the only in the clobber list. * For example a list with "eax" and "xmm0" as clobbers should become: * : XMM_CLOBBERS("xmm0",) "eax" * and a list with only "xmm0" should become: * XMM_CLOBBERS_ONLY("xmm0") */ #if HAVE_XMM_CLOBBERS #define XMM_CLOBBERS(...) … #define XMM_CLOBBERS_ONLY(...) … #else #define XMM_CLOBBERS … #define XMM_CLOBBERS_ONLY … #endif /* Use to export labels from asm. */ #define LABEL_MANGLE(a) … // Use rip-relative addressing if compiling PIC code on x86-64. #if ARCH_X86_64 && defined(PIC) #define LOCAL_MANGLE(a) … #else #define LOCAL_MANGLE … #endif #if HAVE_INLINE_ASM_DIRECT_SYMBOL_REFS #define MANGLE … #define NAMED_CONSTRAINTS_ADD … #define NAMED_CONSTRAINTS … #define NAMED_CONSTRAINTS_ARRAY_ADD … #define NAMED_CONSTRAINTS_ARRAY … #else /* When direct symbol references are used in code passed to a compiler that does not support them * then these references need to be converted to named asm constraints instead. * Instead of returning a direct symbol MANGLE now returns a named constraint for that specific symbol. * In order for this to work there must also be a corresponding entry in the asm-interface. To add this * entry use the macro NAMED_CONSTRAINTS() and pass in a list of each symbol reference used in the * corresponding block of code. (e.g. NAMED_CONSTRAINTS(var1,var2,var3) where var1 is the first symbol etc. ). * If there are already existing constraints then use NAMED_CONSTRAINTS_ADD to add to the existing constraint list. */ #define MANGLE(a) … // Intel/MSVC does not correctly expand va-args so we need a rather ugly hack in order to get it to work #define FE_0(P,X) … #define FE_1(P,X,X1) … #define FE_2(P,X,X1,X2) … #define FE_3(P,X,X1,X2,X3) … #define FE_4(P,X,X1,X2,X3,X4) … #define FE_5(P,X,X1,X2,X3,X4,X5) … #define FE_6(P,X,X1,X2,X3,X4,X5,X6) … #define FE_7(P,X,X1,X2,X3,X4,X5,X6,X7) … #define FE_8(P,X,X1,X2,X3,X4,X5,X6,X7,X8) … #define FE_9(P,X,X1,X2,X3,X4,X5,X6,X7,X8,X9) … #define GET_FE_IMPL(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,NAME,...) … #define GET_FE(A) … #define GET_FE_GLUE(x, y) … #define FOR_EACH_VA(P,...) … #define NAME_CONSTRAINT(x) … // Parameters are a list of each symbol reference required #define NAMED_CONSTRAINTS_ADD(...) … // Same but without comma for when there are no previously defined constraints #define NAMED_CONSTRAINTS(...) … // Same as above NAMED_CONSTRAINTS except used for passing arrays/pointers instead of normal variables #define NAME_CONSTRAINT_ARRAY(x) … #define NAMED_CONSTRAINTS_ARRAY_ADD(...) … #define NAMED_CONSTRAINTS_ARRAY(...) … #endif #endif /* AVUTIL_X86_ASM_H */
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