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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
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[/] [openrisc/] [trunk/] [gnu-src/] [gdb-7.2/] [gdb/] [testsuite/] [gdb.cell/] [fork.c] - Rev 357
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/* This testcase is part of GDB, the GNU debugger. Copyright 2010 Free Software Foundation, Inc. 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/>. Contributed by Ulrich Weigand <uweigand@de.ibm.com> */ #include <stdio.h> #include <stdlib.h> #include <libspe2.h> #include <pthread.h> #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> extern spe_program_handle_t fork_spu; void * spe_thread (void * arg) { int flags = 0; unsigned int entry = SPE_DEFAULT_ENTRY; spe_context_ptr_t *ctx = (spe_context_ptr_t *) arg; spe_program_load (*ctx, &fork_spu); spe_context_run (*ctx, &entry, flags, NULL, NULL, NULL); pthread_exit (NULL); } int main (void) { pthread_t pts; spe_context_ptr_t ctx; unsigned int value; unsigned int pid; ctx = spe_context_create (0, NULL); pthread_create (&pts, NULL, &spe_thread, &ctx); /* Wait until the SPU thread is running. */ spe_out_intr_mbox_read (ctx, &value, 1, SPE_MBOX_ALL_BLOCKING); pid = fork (); if (pid == 0) { /* This is the child. Just exit immediately. */ exit (0); } else { /* This is the parent. Wait for the child to exit. */ waitpid (pid, NULL, 0); } /* Tell SPU to continue. */ spe_in_mbox_write (ctx, &value, 1, SPE_MBOX_ALL_BLOCKING); pthread_join (pts, NULL); spe_context_destroy (ctx); return 0; }
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