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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-6.8/] [sim/] [testsuite/] [common/] [bits-gen.c] - Rev 321
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/* Miscellaneous simulator utilities. Copyright (C) 1997, 2007, 2008 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 3 of the License, 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, see <http://www.gnu.org/licenses/>. */ #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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