/* ddt_remote - Stuff needed to get datadescs about remote hosts */
-/* Authors: Olivier Aumage, Martin Quinson */
-/* Copyright (C) 2003, 2004 the GRAS posse. */
+/* Copyright (c) 2003 Olivier Aumage. */
+/* Copyright (c) 2003, 2004 Martin Quinson. */
+/* 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(ddt_convert,datadesc,
+ "Inter-architecture convertions");
/***
- *** Table of all known architectures.
+ *** Table of all known architectures:
+ ***
+ *** l C<1/1> I<2/2:4/4:4/4:8/4> P<4/4:4/4> D<4/4:8/4>
+ *** l C<1/1> I<2/2:4/4:8/8:8/8> P<4/4:4/4> D<4/4:8/8>
+ *** B C<1/1> I<2/2:4/4:4/8:8/8> P<4/4:4/4> D<4/4:8/4>
+ *** B C<1/1> I<2/2:4/8:8/8:8/8> P<4/4:4/4> D<4/4:8/4>
+ *** B C:1/1: I:2/2:4/4:4/4:8/8: P:4/4:4/4: D:4/4:8/4: AIX
+ *** B C:1/1: I:2/2:4/2:4/2:8/2: P:4/2:4/2: D:4/2:8/2: ARM
+ *** l C<1/1> I<2/2:4/4:4/4:8/8> P<4/4:4/4> D<4/4:8/8> win32
***/
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", 0, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,4,4,4, 4,4, 4,4}},
+
+ {"little64", 0, {1,2,4,8,8, 8,8, 4,8},
+ {1,2,4,8,8, 8,8, 4,8}},
+
+ {"big32", 1, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,4,4,8, 4,4, 4,8}},
+
+ {"big64", 1, {1,2,4,8,8, 8,8, 4,8},
+ {1,2,4,8,8, 8,8, 4,8}},
+
+ {"aix", 1, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,4,4,8, 4,4, 4,4}},
+
+ {"arm", 1, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,2,2,2, 2,2, 2,2}},
+
+ {"win32", 0, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,4,4,8, 4,4, 4,8}},
+
+ {"g5", 1, {1,2,4,4,8, 4,4, 4,8},
+ {1,2,4,4,4, 4,4, 4,4}}
};
const char *gras_datadesc_arch_name(int code) {
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);
-
/**
* gras_dd_convert_elm:
*
* 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,
+xbt_error_t
+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",
+ DEBUG4("r_size=%lu l_size=%lu, 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];
+ DEBUG2("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;
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);*/
-
+ /*
+ fprintf(stderr,"r_data=");
+ for (cpt=0; cpt<r_size; cpt++) {
+ tester.i=0;
+ tester.c[0]= ((char*)r_data)[cpt];
+ fprintf(stderr,"\\%02x", tester.i);
+ }
+ fprintf(stderr,"\n");
+ */
+
+ /* Resize that damn integer, pal */
+
+ unsigned char *l_sign, *r_sign;
+ int padding;
+ int sizeChange = l_size - r_size;
+ int lowOrderFirst = !gras_arches[r_arch].endian ||
+ gras_arches[r_arch].endian == gras_arches[GRAS_THISARCH].endian;
+
+ DEBUG5("Resize integer %d from %lu @%p to %lu @%p",
+ cpt, r_size,r_data, l_size,l_data);
+ xbt_assert0(r_data != l_data, "Impossible to resize in place");
+
+ if(sizeChange < 0) {
+ DEBUG3("Truncate %d bytes (%s,%s)", -sizeChange,
+ lowOrderFirst?"lowOrderFirst":"bigOrderFirst",
+ scal.encoding == e_gras_dd_scalar_encoding_sint?"signed":"unsigned");
+ /* Truncate high-order bytes. */
+ memcpy(l_data,
+ gras_arches[r_arch].endian ? ((char*)r_data-sizeChange)
+ : r_data,
+ l_size);
+
+ if(scal.encoding == e_gras_dd_scalar_encoding_sint) {
+ DEBUG0("This is signed");
+ /* Make sure the high order bit of r_data and l_data are the same */
+ l_sign = gras_arches[GRAS_THISARCH].endian
+ ? ((unsigned char*)l_data + l_size - 1)
+ : (unsigned char*)l_data;
+ r_sign = gras_arches[r_arch].endian
+ ? ((unsigned char*)r_data + r_size - 1)
+ : (unsigned char*)r_data;
+ DEBUG2("This is signed (r_sign=%c l_sign=%c", *r_sign,*l_sign);
+
+ if ((*r_sign > 127) != (*l_sign > 127)) {
+ if(*r_sign > 127)
+ *l_sign += 128;
+ else
+ *l_sign -= 128;
+ }
+ }
+ } else {
+ DEBUG1("Extend %d bytes", sizeChange);
+ if (scal.encoding != e_gras_dd_scalar_encoding_sint) {
+ DEBUG0("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<r_size; cpt++) {
+ tester.i=0;
+ tester.c[0] = ((char*)r_data)[cpt];
+ fprintf(stderr,"\\%02x", tester.i);
+ }
+ fprintf(stderr,"\n");
+
+ fprintf(stderr,"l_data=");
+ for (cpt=0; cpt<l_size; cpt++) {
+ tester.i=0;
+ tester.c[0]= ((char*)l_data)[cpt];
+ fprintf(stderr,"\\%02x", tester.i);
+ } fprintf(stderr,"\n");
+ */
+ }
}
- src=dst; /* Make sure to reverse bytes on the right data */
}
+ /* 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;
+ for(cpt = 0, r_data=dst, l_data=dst;
cpt < count;
cpt++,
r_data = (char *)r_data + l_size, /* resizing already done */
}
}
-/*
- * 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:
