source: mainline/uspace/lib/libc/generic/libc.c@ 3bf907a

/*
 * Copyright (c) 2005 Martin Decky
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 * - Redistributions in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in the
 *   documentation and/or other materials provided with the distribution.
 * - The name of the author may not be used to endorse or promote products
 *   derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

/** @addtogroup lc Libc
 * @brief HelenOS C library
 * @{
 * @}
 */

/** @addtogroup libc generic
 * @ingroup lc
 * @{
 */

/** @file
 */

#include <libc.h>
#include <stdio.h>
#include <unistd.h>
#include <malloc.h>
#include <tls.h>
#include <thread.h>
#include <fibril.h>
#include <ipc/ipc.h>
#include <async.h>
#include <as.h>
#include <loader/pcb.h>

extern char _heap;
extern int main(int argc, char *argv[]);

int _errno;

void _exit(int status)
{
        thread_exit(status);
}

void __main(void *pcb_ptr)
{
        (void) as_area_create(&_heap, 1, AS_AREA_WRITE | AS_AREA_READ);
        
        _async_init();
        fibril_t *fibril = fibril_setup();
        __tcb_set(fibril->tcb);
        
        /* Save the PCB pointer */
        __pcb = (pcb_t *) pcb_ptr;
        
        int argc;
        char **argv;
        
        if (__pcb == NULL) {
                argc = 0;
                argv = NULL;
        } else {
                argc = __pcb->argc;
                argv = __pcb->argv;
                
                if (__pcb->filc > 0)
                        stdin = fopen_node(__pcb->filv[0], "r");
                
                if (__pcb->filc > 1)
                        stdout = fopen_node(__pcb->filv[1], "w");
                
                if (__pcb->filc > 2)
                        stderr = fopen_node(__pcb->filv[2], "w");
        }
        
        main(argc, argv);
        
        if (stdin != NULL)
                fclose(stdin);
        
        if (stdout != NULL)
                fclose(stdout);
        
        if (stderr != NULL)
                fclose(stderr);
}

void __exit(void)
{
        fibril_teardown(__tcb_get()->fibril_data);
        _exit(0);
}

/** @}
 */