-/* $Id$ */
-
/* 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"
+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_sizes_t gras_arch_sizes[gras_arch_count] = {
- {"i386", 0, {1,2,4,4,8, 4,4, 4,8}}
+const gras_arch_desc_t gras_arches[gras_arch_count] = {
+
+ {"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;
+}
+
+
+/**
+ * Local function doing the grunt work
+ */
+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 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;
+ 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);
- if (r_arch != GRAS_THISARCH)
- RAISE_UNIMPLEMENTED;
+ r_size = type->size[r_arch];
+ l_size = type->size[GRAS_THISARCH];
+ XBT_DEBUG("r_size=%lu l_size=%lu, src=%p dst=%p", r_size, l_size, src,
+ dst);
- return no_error;
+ 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<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;
+
+ XBT_DEBUG("Resize integer %d from %lu @%p to %lu @%p",
+ cpt, r_size, r_data, l_size, l_data);
+ xbt_assert(r_data != l_data, "Impossible to resize in place");
+
+ if (sizeChange < 0) {
+ XBT_DEBUG("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) {
+ XBT_DEBUG("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;
+ XBT_DEBUG("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 {
+ 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<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");
+ */
+ }
+ }
+ }
+
+ /* flip bytes if needed */
+ if (gras_arches[r_arch].endian != gras_arches[GRAS_THISARCH].endian &&
+ (l_size * count) > 1) {
+
+ 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) {
+
+ XBT_DEBUG("Flip elm %d", cpt);
+ gras_dd_reverse_bytes(l_data, r_data, l_size);
+ }
+ }
+
+}
+
+static void gras_dd_reverse_bytes(void *to, const void *from,
+ size_t length)
+{
+
+ char charBegin;
+ const char *fromBegin;
+ const char *fromEnd;
+ 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--) {
+
+ charBegin = *fromBegin;
+ *toBegin = *fromEnd;
+ *toEnd = charBegin;
+ }
}
+
/**
* 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;
}
