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[/] [ao486/] [trunk/] [syn/] [components/] [vga/] [software/] [exe_bsp/] [HAL/] [src/] [alt_exit.c] - Rev 2
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/****************************************************************************** * * * License Agreement * * * * Copyright (c) 2004 Altera Corporation, San Jose, California, USA. * * All rights reserved. * * * * Permission is hereby granted, free of charge, to any person obtaining a * * copy of this software and associated documentation files (the "Software"), * * to deal in the Software without restriction, including without limitation * * the rights to use, copy, modify, merge, publish, distribute, sublicense, * * and/or sell copies of the Software, and to permit persons to whom the * * Software is furnished to do so, subject to the following conditions: * * * * The above copyright notice and this permission notice shall be included in * * all copies or substantial portions of the Software. * * * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * * DEALINGS IN THE SOFTWARE. * * * * This agreement shall be governed in all respects by the laws of the State * * of California and by the laws of the United States of America. * * * * Altera does not recommend, suggest or require that this reference design * * file be used in conjunction or combination with any other product. * ******************************************************************************/ #include "sys/alt_irq.h" #include "sys/alt_sim.h" #include "os/alt_hooks.h" #include "os/alt_syscall.h" #include "alt_types.h" #include "sys/alt_log_printf.h" /* * _exit() is called by exit() in order to terminate the current process. * Typically this is called when main() completes. It should never return. * Since there is nowhere to go once this process completes, this * implementation simply blocks forever. * * Note that interrupts are not disabled so that execution outside of this * thread is allowed to continue. * * ALT_EXIT is mapped onto the _exit() system call in alt_syscall.h */ void ALT_EXIT (int exit_code) { /* ALT_LOG - please see HAL/inc/alt_log_printf.h for details */ ALT_LOG_PRINT_BOOT("[alt_exit.c] Entering _exit() function.\r\n"); ALT_LOG_PRINT_BOOT("[alt_exit.c] Exit code from main was %d.\r\n",exit_code); /* Stop all other threads */ ALT_LOG_PRINT_BOOT("[alt_exit.c] Calling ALT_OS_STOP().\r\n"); ALT_OS_STOP(); /* Provide notification to the simulator that we've stopped */ ALT_LOG_PRINT_BOOT("[alt_exit.c] Calling ALT_SIM_HALT().\r\n"); ALT_SIM_HALT(exit_code); /* spin forever, since there's no where to go back to */ ALT_LOG_PRINT_BOOT("[alt_exit.c] Spinning forever.\r\n"); while (1); }