X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/ad6959da916f5715693223fd972baf5a22d9bfa9..27cbb00affed384593925fc5af6d5533d0a7ef09:/src/gras/DataDesc/ddt_convert.c diff --git a/src/gras/DataDesc/ddt_convert.c b/src/gras/DataDesc/ddt_convert.c index e7a5ca3996..05ea3ade98 100644 --- a/src/gras/DataDesc/ddt_convert.c +++ b/src/gras/DataDesc/ddt_convert.c @@ -1,53 +1,96 @@ -/* $Id$ */ - /* ddt_remote - Stuff needed to get datadescs about remote hosts */ -/* Authors: Olivier Aumage, Martin Quinson */ -/* Copyright (C) 2003, 2004 the GRAS posse. */ +/* Copyright (c) 2004, 2005, 2006, 2009, 2010. The SimGrid Team. + * All rights reserved. */ /* This program is free software; you can redistribute it and/or modify it - under the terms of the license (GNU LGPL) which comes with this package. */ + * under the terms of the license (GNU LGPL) which comes with this package. */ /************************************************************************/ /* C combines the power of assembler with the portability of assembler. */ /************************************************************************/ -#include "DataDesc/datadesc_private.h" +#include "gras/DataDesc/datadesc_private.h" -GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(convert,DataDesc); +XBT_LOG_NEW_DEFAULT_SUBCATEGORY(gras_ddt_convert, gras_ddt, + "Inter-architecture convertions"); /*** - *** Table of all known architectures. + *** Table of all known architectures: + *** +l_C:1/1:_I:2/1:4/1:4/1:8/1:_P:4/1:4/1:_D:4/1:8/1: #gras_arch=0; gras_size=32; gras_arch_name=little32_1; +l_C:1/1:_I:2/2:4/2:4/2:8/2:_P:4/2:4/2:_D:4/2:8/2: #gras_arch=1; gras_size=32; gras_arch_name=little32_2; +l_C:1/1:_I:2/2:4/4:4/4:8/4:_P:4/4:4/4:_D:4/4:8/4: #gras_arch=2; gras_size=32; gras_arch_name=little32_4; +l_C:1/1:_I:2/2:4/4:4/4:8/8:_P:4/4:4/4:_D:4/4:8/8: #gras_arch=3; gras_size=32; gras_arch_name=little32_8; +l_C:1/1:_I:2/2:4/4:8/8:8/8:_P:8/8:8/8:_D:4/4:8/8: #gras_arch=4; gras_size=64; gras_arch_name=little64; +l_C:1/1:_I:2/2:4/4:4/4:8/8:_P:8/8:8/8:_D:4/4:8/8: #gras_arch=11; gras_size=64; gras_arch_name=little64_2; + +B_C:1/1:_I:2/2:4/4:4/4:8/8:_P:4/4:4/4:_D:4/4:8/8: #gras_arch=5; gras_size=32; gras_arch_name=big32; +B_C:1/1:_I:2/2:4/4:4/4:8/8:_P:4/4:4/4:_D:4/4:8/4: #gras_arch=6; gras_size=32; gras_arch_name=big32_8_4; +B_C:1/1:_I:2/2:4/4:4/4:8/4:_P:4/4:4/4:_D:4/4:8/4: #gras_arch=7; gras_size=32; gras_arch_name=big32_4; +B_C:1/1:_I:2/2:4/2:4/2:8/2:_P:4/2:4/2:_D:4/2:8/2: #gras_arch=8; gras_size=32; gras_arch_name=big32_2; +B_C:1/1:_I:2/2:4/4:8/8:8/8:_P:8/8:8/8:_D:4/4:8/8: #gras_arch=9; gras_size=64; gras_arch_name=big64; +B_C:1/1:_I:2/2:4/4:8/8:8/8:_P:8/8:8/8:_D:4/4:8/4: #gras_arch=10;gras_size=64; gras_arch_name=big64_8_4; + + PLEASE DO NOT MESS WITH THESE HARDCODED VALUES + + + Grep GRAS_THISARCH in buildtools/Cmake/CompleteInFiles.cmake for details + ***/ const gras_arch_desc_t gras_arches[gras_arch_count] = { - {"little32", 0, {1,2,4,4,8, 4,4, 4,8}}, - {"little64", 0, {1,2,4,8,8, 8,8, 4.8}}, - {"big32", 1, {1,2,4,4,8, 4,4, 4,8}}, - {"big64", 1, {1,2,4,8,8, 8,8, 4,8}} + + {"little32_1", 0, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* little endian, 1 byte alignement (win32) */ + {1, 1, 1, 1, 1, 1, 1, 1, 1}}, + + {"little32_2", 0, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* little endian, 2 bytes alignements (win32) */ + {1, 2, 2, 2, 2, 2, 2, 2, 2}}, + + {"little32_4", 0, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* little endian, 4 bytes alignements (win32 and linux x86) */ + {1, 2, 4, 4, 4, 4, 4, 4, 4}}, + + {"little32_8", 0, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* little endian, 8 bytes alignement (win32) */ + {1, 2, 4, 4, 8, 4, 4, 4, 8}}, + + {"little64", 0, {1, 2, 4, 8, 8, 8, 8, 4, 8}, /* alpha, ia64 */ + {1, 2, 4, 8, 8, 8, 8, 4, 8}}, + + {"little64_2", 0, {1, 2, 4, 4, 8, 8, 8, 4, 8}, /* win64 */ + {1, 2, 4, 4, 8, 8, 8, 4, 8}}, + + {"big32_8", 1, {1, 2, 4, 4, 8, 4, 4, 4, 8}, + {1, 2, 4, 4, 8, 4, 4, 4, 8}}, + + {"big32_8_4", 1, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* AIX */ + {1, 2, 4, 4, 8, 4, 4, 4, 4}}, + + {"big32_4", 1, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* G5 */ + {1, 2, 4, 4, 4, 4, 4, 4, 4}}, + + {"big32_2", 1, {1, 2, 4, 4, 8, 4, 4, 4, 8}, /* ARM */ + {1, 2, 2, 2, 2, 2, 2, 2, 2}}, + + {"big64", 1, {1, 2, 4, 8, 8, 8, 8, 4, 8}, /* sparc */ + {1, 2, 4, 8, 8, 8, 8, 4, 8}}, + + {"big64_8_4", 1, {1, 2, 4, 8, 8, 8, 8, 4, 8}, /* aix with -maix64 */ + {1, 2, 4, 8, 8, 8, 8, 4, 4}} }; -const char *gras_datadesc_arch_name(int code) { - if (code < 0 || code >= gras_arch_count) - return "[unknown arch]"; - return gras_arches[code].name; +const char *gras_datadesc_arch_name(int code) +{ + if (code < 0 || code >= gras_arch_count) + return "[unknown arch]"; + return gras_arches[code].name; } + /** * Local function doing the grunt work */ -static void -gras_dd_resize_int(const void *source, - size_t sourceSize, - void *destination, - size_t destinationSize, - int signedType, - int lowOrderFirst); -static void -gras_dd_reverse_bytes(void *to, - const void *from, - size_t length); - +static void gras_dd_reverse_bytes(void *to, const void *from, + size_t length); /** * gras_dd_convert_elm: @@ -56,73 +99,145 @@ gras_dd_reverse_bytes(void *to, * The data to be converted is stored in @src, and is to be stored in @dst. * Both pointers may be the same location if no resizing is needed. */ -gras_error_t -gras_dd_convert_elm(gras_datadesc_type_t *type, int count, - int r_arch, - void *src, void *dst) { +void +gras_dd_convert_elm(gras_datadesc_type_t type, int count, + int r_arch, void *src, void *dst) +{ gras_dd_cat_scalar_t scal = type->category.scalar_data; int cpt; const void *r_data; void *l_data; - size_t r_size, l_size; - - gras_assert(type->category_code == e_gras_datadesc_type_cat_scalar); + unsigned long r_size, l_size; + /* Hexadecimal displayer + union { + char c[sizeof(int)]; + int i; + } tester; + */ + xbt_assert(type->category_code == e_gras_datadesc_type_cat_scalar); + xbt_assert(r_arch != GRAS_THISARCH); r_size = type->size[r_arch]; l_size = type->size[GRAS_THISARCH]; - DEBUG4("r_size=%d l_size=%d, src=%p dst=%p", - r_size,l_size,src,dst); - - if (r_arch == GRAS_THISARCH) { -// || scal.encoding == e_gras_dd_scalar_encoding_float) { - DEBUG0("No conversion needed"); - return no_error; - } - - r_size = type->size[r_arch]; - l_size = type->size[GRAS_THISARCH]; - - if(r_size != l_size) { - for(cpt = 0, r_data = src, l_data = dst; - cpt < count; - cpt++, - r_data = (char *)r_data + r_size, - l_data = (char *)l_data + l_size) { - - DEBUG3("Resize elm %d from %p to %p",cpt,r_data, l_data); - gras_dd_resize_int(r_data, r_size, l_data, l_size, - scal.encoding == e_gras_dd_scalar_encoding_sint, - gras_arches[GRAS_THISARCH].endian); - /* && - gras_arches[r_arch].endian - != gras_arches[GRAS_THISARCH].endian);*/ - + XBT_DEBUG("r_size=%lu l_size=%lu, src=%p dst=%p", r_size, l_size, src, + dst); + + XBT_DEBUG("remote=%c local=%c", gras_arches[r_arch].endian ? 'B' : 'l', + gras_arches[GRAS_THISARCH].endian ? 'B' : 'l'); + + if (r_size != l_size) { + for (cpt = 0, r_data = src, l_data = dst; + cpt < count; + cpt++, + r_data = (char *) r_data + r_size, + l_data = (char *) l_data + l_size) { + + /* + fprintf(stderr,"r_data="); + for (cpt=0; cpt 127) != (*l_sign > 127)) { + if (*r_sign > 127) + *l_sign += 128; + else + *l_sign -= 128; + } + } + } else { + XBT_DEBUG("Extend %d bytes", sizeChange); + if (scal.encoding != e_gras_dd_scalar_encoding_sint) { + XBT_DEBUG("This is signed"); + padding = 0; /* pad unsigned with 0 */ + } else { + /* extend sign */ + r_sign = + gras_arches[r_arch].endian ? ((unsigned char *) r_data + + r_size - 1) + : (unsigned char *) r_data; + padding = (*r_sign > 127) ? 0xff : 0; + } + + memset(l_data, padding, l_size); + memcpy(!gras_arches[r_arch].endian ? l_data + : ((char *) l_data + sizeChange), r_data, r_size); + + /* + fprintf(stderr,"r_data="); + for (cpt=0; cpt 1) { + /* flip bytes if needed */ + if (gras_arches[r_arch].endian != gras_arches[GRAS_THISARCH].endian && + (l_size * count) > 1) { - for(cpt = 0, r_data=src, l_data=dst; - cpt < count; - cpt++, - r_data = (char *)r_data + l_size, /* resizing already done */ - l_data = (char *)l_data + l_size) { + for (cpt = 0, r_data = dst, l_data = dst; cpt < count; cpt++, r_data = (char *) r_data + l_size, /* resizing already done */ + l_data = (char *) l_data + l_size) { - DEBUG1("Flip elm %d",cpt); + XBT_DEBUG("Flip elm %d", cpt); gras_dd_reverse_bytes(l_data, r_data, l_size); } } - return no_error; } -static void -gras_dd_reverse_bytes(void *to, - const void *from, - size_t length) { +static void gras_dd_reverse_bytes(void *to, const void *from, + size_t length) +{ char charBegin; const char *fromBegin; @@ -130,15 +245,11 @@ gras_dd_reverse_bytes(void *to, char *toBegin; char *toEnd; - for(fromBegin = (const char *)from, - fromEnd = fromBegin + length - 1, - toBegin = (char *)to, - toEnd = toBegin + length - 1; - - fromBegin <= fromEnd; - - fromBegin++, fromEnd--, - toBegin++, toEnd--) { + for (fromBegin = (const char *) from, + fromEnd = fromBegin + length - 1, + toBegin = (char *) to, + toEnd = toBegin + length - 1; + fromBegin <= fromEnd; fromBegin++, fromEnd--, toBegin++, toEnd--) { charBegin = *fromBegin; *toBegin = *fromEnd; @@ -146,69 +257,13 @@ gras_dd_reverse_bytes(void *to, } } -/* - * Copies the integer value of size #sourceSize# stored in #source# to the - * #destinationSize#-long area #destination#. #signedType# indicates whether - * or not the source integer is signed; #lowOrderFirst# whether or not the - * bytes run least-significant to most-significant. - * - * It should be thread safe (operates on local variables and calls mem*) - */ -static void -gras_dd_resize_int(const void *source, - size_t sourceSize, - void *destination, - size_t destinationSize, - int signedType, - int lowOrderFirst) { - - unsigned char *destinationSign; - int padding; - int sizeChange = destinationSize - sourceSize; - unsigned char *sourceSign; - - if(sizeChange == 0) { - memcpy(destination, source, destinationSize); - } else if(sizeChange < 0) { - /* Truncate high-order bytes. */ - memcpy(destination, - lowOrderFirst?source:((char*)source-sizeChange), - destinationSize); - if(signedType) { - /* Make sure the high order bit of source and - * destination are the same */ - destinationSign = lowOrderFirst ? ((unsigned char*)destination + destinationSize - 1) : (unsigned char*)destination; - sourceSign = lowOrderFirst ? ((unsigned char*)source + sourceSize - 1) : (unsigned char*)source; - if((*sourceSign > 127) != (*destinationSign > 127)) { - if(*sourceSign > 127) - *destinationSign += 128; - else - *destinationSign -= 128; - } - } - } else { - /* Pad with zeros or extend sign, as appropriate. */ - if(!signedType) - padding = 0; - else { - sourceSign = lowOrderFirst ? ((unsigned char*)source + sourceSize - 1) - : (unsigned char*)source; - padding = (*sourceSign > 127) ? 0xff : 0; - } - memset(destination, padding, destinationSize); - memcpy(lowOrderFirst ? destination - : ((char *)destination + sizeChange), - source, sourceSize); - } -} - /** * gras_arch_selfid: * * returns the ID of the architecture the process is running on */ -int -gras_arch_selfid(void) { +int gras_arch_selfid(void) +{ return GRAS_THISARCH; }