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binutils-gdb/sim/testsuite/common/bits-gen.c
Daniel Jacobowitz 6aba47ca06 Copyright updates for 2007.
2007-01-09 17:59:20 +00:00

320 lines
7.9 KiB
C
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/* Miscellaneous simulator utilities.
Copyright (C) 1997, 2007 Free Software Foundation, Inc.
Contributed by Cygnus Support.
This file is part of GDB, the GNU debugger.
This program 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 version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
#include <stdio.h>
void
gen_struct (void)
{
printf ("\n");
printf ("typedef struct _test_tuples {\n");
printf (" int line;\n");
printf (" int row;\n");
printf (" int col;\n");
printf (" long long val;\n");
printf (" long long check;\n");
printf ("} test_tuples;\n");
printf ("\n");
printf ("typedef struct _test_spec {\n");
printf (" const char *file;\n");
printf (" const char *macro;\n");
printf (" int nr_rows;\n");
printf (" int nr_cols;\n");
printf (" test_tuples *tuples;\n");
printf ("} test_spec;\n");
}
void
gen_bit (int bitsize,
int msb,
const char *macro,
int nr_bits)
{
int i;
printf ("\n/* Test the %s macro */\n", macro);
printf ("test_tuples %s_tuples[%d] = {\n", macro, nr_bits);
for (i = 0; i < nr_bits; i++)
{
/* compute what we think the value is */
unsigned long long bit = 1;
if (msb == 0)
bit <<= nr_bits - i - 1;
else
bit <<= i;
if (bitsize == 32)
bit = (unsigned) bit; /* truncate it! */
/* write it out */
printf (" { __LINE__, ");
printf ("%d, %2d, ", -1, i);
printf ("%s (%2d), ", macro, i);
printf ("UNSIGNED64 (0x%08lx%08lx), ",
(long) (bit >> 32), (long) bit);
printf ("},\n");
}
printf ("};\n");
printf ("\n");
printf ("test_spec %s_test = { __FILE__, \"%s\", 1, %d, %s_tuples, };\n",
macro, macro, nr_bits, macro);
printf ("\n");
}
void
gen_enum (const char *macro,
int nr_bits)
{
int i;
printf ("\n/* Test the %s macro in an enum */\n", macro);
printf ("enum enum_%s {\n", macro);
for (i = 0; i < nr_bits; i++)
{
printf (" elem_%s_%d = %s (%d),\n", macro, i, macro, i);
}
printf ("};\n");
printf ("\n");
}
void
gen_mask (int bitsize,
const char *msb,
const char *macro,
int nr_bits)
{
int l;
int h;
printf ("\n/* Test the %s%s macro */\n", msb, macro);
printf ("test_tuples %s_tuples[%d][%d] = {\n", macro, nr_bits, nr_bits);
for (l = 0; l < nr_bits; l++)
{
printf (" {\n");
for (h = 0; h < nr_bits; h++)
{
printf (" { __LINE__, ");
if ((strcmp (msb, "MS") == 0 && l <= h)
|| (strcmp (msb, "MS") != 0 && l >= h)
|| (strcmp (macro, "") == 0))
{
/* compute the mask */
unsigned long long mask = 0;
int b;
for (b = 0; b < nr_bits; b++)
{
unsigned long long bit = 1;
if (strcmp (msb, "MS") == 0)
{
if ((l <= b && b <= h)
|| (h < l && (b <= h || b >= l)))
bit <<= (nr_bits - b - 1);
else
bit = 0;
}
else
{
if ((l >= b && b >= h)
|| (h > l && (b >= h || b <= l)))
bit <<= b;
else
bit = 0;
}
mask |= bit;
}
if (bitsize == 32)
mask = (unsigned long) mask;
printf ("%d, %d, ", l, h);
printf ("%s%s (%2d, %2d), ", msb, macro, l, h);
printf ("UNSIGNED64 (0x%08lx%08lx), ",
(long) (mask >> 32), (long) mask);
}
else
printf ("-1, -1, ");
printf ("},\n");
}
printf (" },\n");
}
printf ("};\n");
printf ("\n");
printf ("test_spec %s_test = { __FILE__, \"%s%s\", %d, %d, &%s_tuples[0][0], };\n",
macro, msb, macro, nr_bits, nr_bits, macro);
printf ("\n");
}
void
usage (int reason)
{
fprintf (stderr, "Usage:\n");
fprintf (stderr, " bits-gen <nr-bits> <msb> <byte-order>\n");
fprintf (stderr, "Generate a test case for the simulator bit manipulation code\n");
fprintf (stderr, " <nr-bits> = { 32 | 64 }\n");
fprintf (stderr, " <msb> = { 0 | { 31 | 63 } }\n");
fprintf (stderr, " <byte-order> = { big | little }\n");
switch (reason)
{
case 1: fprintf (stderr, "Wrong number of arguments\n");
break;
case 2:
fprintf (stderr, "Invalid <nr-bits> argument\n");
break;
case 3:
fprintf (stderr, "Invalid <msb> argument\n");
break;
case 4:
fprintf (stderr, "Invalid <byte-order> argument\n");
break;
default:
}
exit (1);
}
int
main (argc, argv)
int argc;
char **argv;
{
int bitsize;
int msb;
char *ms;
int big_endian;
if (argc != 4)
usage (1);
if (strcmp (argv [1], "32") == 0)
bitsize = 32;
else if (strcmp (argv [1], "64") == 0)
bitsize = 64;
else
usage (2);
if (strcmp (argv [2], "0") == 0)
msb = 0;
else if (strcmp (argv [2], "31") == 0 && bitsize == 32)
msb = 31;
else if (strcmp (argv [2], "63") == 0 && bitsize == 64)
msb = 63;
else
usage (3);
if (msb == 0)
ms = "MS";
else
ms = "LS";
if (strcmp (argv [3], "big") == 0)
big_endian = 1;
else if (strcmp (argv [3], "little") == 0)
big_endian = 0;
else
usage (4);
printf ("#define WITH_TARGET_WORD_BITSIZE %d\n", bitsize);
printf ("#define WITH_TARGET_WORD_MSB %d\n", msb);
printf ("#define WITH_HOST_WORD_BITSIZE %d\n", sizeof (int) * 8);
printf ("#define WITH_TARGET_BYTE_ORDER %s\n", big_endian ? "BIG_ENDIAN" : "LITTLE_ENDIAN");
printf ("\n");
printf ("#define SIM_BITS_INLINE (ALL_H_INLINE)\n");
printf ("\n");
printf ("#define ASSERT(X) do { if (!(X)) abort(); } while (0)\n");
printf ("\n");
printf ("#include \"sim-basics.h\"\n");
gen_struct ();
printf ("#define DO_BIT_TESTS\n");
gen_bit ( 4, msb, "BIT4", 4);
gen_bit ( 5, msb, "BIT5", 5);
gen_bit ( 8, msb, "BIT8", 8);
gen_bit (10, msb, "BIT10", 10);
gen_bit (16, msb, "BIT16", 16);
gen_bit (32, msb, "BIT32", 32);
gen_bit (64, msb, "BIT64", 64);
gen_bit (bitsize, msb, "BIT", 64);
gen_bit ( 8, 8 - 1, "LSBIT8", 8);
gen_bit (16, 16 - 1, "LSBIT16", 16);
gen_bit (32, 32 - 1, "LSBIT32", 32);
gen_bit (64, 64 - 1, "LSBIT64", 64);
gen_bit (bitsize, bitsize - 1, "LSBIT", 64);
gen_bit ( 8, 0, "MSBIT8", 8);
gen_bit (16, 0, "MSBIT16", 16);
gen_bit (32, 0, "MSBIT32", 32);
gen_bit (64, 0, "MSBIT64", 64);
gen_bit (bitsize, 0, "MSBIT", 64);
printf ("test_spec *(bit_tests[]) = {\n");
printf (" &BIT4_test,\n");
printf (" &BIT5_test,\n");
printf (" &BIT8_test,\n");
printf (" &BIT10_test,\n");
printf (" &BIT16_test,\n");
printf (" &BIT32_test,\n");
printf (" &BIT64_test,\n");
printf (" &BIT_test,\n");
printf (" &LSBIT8_test,\n");
printf (" &LSBIT16_test,\n");
printf (" &LSBIT32_test,\n");
printf (" &LSBIT64_test,\n");
printf (" &LSBIT_test,\n");
printf (" &MSBIT8_test,\n");
printf (" &MSBIT16_test,\n");
printf (" &MSBIT32_test,\n");
printf (" &MSBIT64_test,\n");
printf (" &MSBIT_test,\n");
printf (" 0,\n");
printf ("};\n\n");
gen_enum ("BIT", 64);
gen_enum ("LSBIT", 64);
gen_enum ("MSBIT", 64);
gen_enum ("BIT32", 32);
gen_enum ("LSBIT32", 32);
gen_enum ("MSBIT32", 32);
printf ("#define DO_MASK_TESTS\n");
gen_mask ( 8, ms, "MASK8", 8);
gen_mask (16, ms, "MASK16", 16);
gen_mask (32, ms, "MASK32", 32);
gen_mask (64, ms, "MASK64", 64);
gen_mask (bitsize, ms, "MASK", 64);
printf ("test_spec *(mask_tests[]) = {\n");
printf (" &MASK8_test,\n");
printf (" &MASK16_test,\n");
printf (" &MASK32_test,\n");
printf (" &MASK64_test,\n");
printf (" &MASK_test,\n");
printf (" 0,\n");
printf ("};\n\n");
return 0;
}
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