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[/] [openrisc/] [trunk/] [gnu-dev/] [or1k-gcc/] [libitm/] [testsuite/] [libitm.c/] [memset-1.c] - Rev 833
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/* 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 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, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Verify memcpy operation. */ #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/mman.h> #include <libitm.h> #define BEG_TRANSACTION \ _ITM_beginTransaction (pr_instrumentedCode | pr_hasNoAbort \ | pr_hasNoIrrevocable) #define END_TRANSACTION \ _ITM_commitTransaction () #define MEMSET _ITM_memsetW static unsigned char *buf; static size_t bufsize, page_size; static int fail; #ifndef MAP_ANONYMOUS # ifdef MAP_ANON # define MAP_ANONYMOUS MAP_ANON # endif #endif static void do_test (size_t align, size_t len) { size_t i, j; unsigned char c1, c2; if (align + len >= bufsize) return; c1 = random () >> 8; c2 = random () >> 8; if (c1 == c2) c1++; memset (buf, c1, bufsize); BEG_TRANSACTION; MEMSET (buf + align, c2, len); END_TRANSACTION; i = (align > 64 ? align - 64 : 0); for (; i < align; ++i) if (buf[i] != c1) { printf ("Garbage before: ofs %zd\n", i); fail = 1; break; } for (; i < align + len; ++i) if (buf[i] != c2) { printf ("Wrong result: ofs %zd\n", i); fail = 1; break; } for (j = i + 64 < bufsize ? i + 64 : bufsize; i < j; ++i) if (buf[i] != c1) { printf ("Garbage after: ofs %zd\n", i); fail = 1; break; } } int main() { size_t i, j; page_size = getpagesize (); bufsize = 2 * page_size; buf = mmap (NULL, bufsize + 2*page_size, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, -1, 0); if (buf == MAP_FAILED) return 1; if (mprotect (buf, page_size, PROT_NONE)) return 1; buf += page_size; if (mprotect (buf + bufsize, page_size, PROT_NONE)) return 1; for (i = 0; i < 18; ++i) { size_t len = 1 << i; do_test (0, len); do_test (bufsize - len, len); } for (i = 0; i < 32; ++i) for (j = 0; j < 32; ++j) do_test (j, i); for (i = 3; i < 32; ++i) { if ((i & (i - 1)) == 0) continue; do_test (0, 16 * i); do_test (i, 16 * i); } return fail; }
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