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/*
* POSIX-compatible main layer
*
* Samuel Thibault <Samuel.Thibault@eu.citrix.net>, October 2007
*/
#ifdef HAVE_LIBC
#include <os.h>
#include <sched.h>
#include <console.h>
#include <netfront.h>
#include <time.h>
#include <stdlib.h>
#include <unistd.h>
#include <fs.h>
#include <xenbus.h>
#include <events.h>
extern int main(int argc, char *argv[], char *envp[]);
extern void __libc_init_array(void);
extern void __libc_fini_array(void);
struct thread *main_thread;
#if 0
#include <stdio.h>
int main(int argc, char *argv[], char *envp[])
{
printf("Hello, World!\n");
return 1;
}
#endif
void _init(void)
{
}
void _fini(void)
{
}
static void call_main(void *p)
{
char *args, /**path,*/ *msg, *c;
int argc;
char **argv;
char *envp[] = { NULL };
char *vm;
int i;
char path[128];
/* Let other parts initialize (including console output) before maybe
* crashing. */
//sleep(1);
start_networking();
init_fs_frontend();
#ifdef CONFIG_QEMU
if (!fs_import) {
printk("No FS backend found, is it running?\n");
do_exit();
}
/* Fetch argc, argv from XenStore */
char domid_s[10];
int domid;
domid = xenbus_read_integer("target");
if (domid == -1) {
printk("Couldn't read target\n");
do_exit();
}
snprintf(domid_s, sizeof(domid_s), "%d", domid);
snprintf(path, sizeof(path), "/local/domain/%d/vm", domid);
msg = xenbus_read(XBT_NIL, path, &vm);
if (msg) {
printk("Couldn't read vm path\n");
do_exit();
}
printk("vm is at %s\n", vm);
#else
msg = xenbus_read(XBT_NIL, "vm", &vm);
if (msg) {
printk("Couldn't read vm path\n");
do_exit();
}
#endif
snprintf(path, sizeof(path), "%s/image/dmargs", vm);
free(vm);
msg = xenbus_read(XBT_NIL, path, &args);
if (msg) {
printk("Couldn't get stubdom args: %s\n", msg);
args = strdup("");
}
argc = 1;
#ifdef CONFIG_QEMU
argc += 2;
#endif
c = args;
while (*c) {
if (*c != ' ') {
argc++;
while (*c && *c != ' ')
c++;
} else {
while (*c == ' ')
c++;
}
}
argv = alloca((argc + 1) * sizeof(char *));
argv[0] = "main";
argc = 1;
#ifdef CONFIG_QEMU
argv[1] = "-d";
argv[2] = domid_s;
argc += 2;
#endif
c = args;
while (*c) {
if (*c != ' ') {
argv[argc++] = c;
while (*c && *c != ' ')
c++;
} else {
*c++ = 0;
while (*c == ' ')
c++;
}
}
argv[argc] = NULL;
for (i = 0; i < argc; i++)
printf("\"%s\" ", argv[i]);
printf("\n");
__libc_init_array();
environ = envp;
tzset();
exit(main(argc, argv, envp));
}
void _exit(int ret)
{
close_all_files();
__libc_fini_array();
printk("main returned %d\n", ret);
unbind_all_ports();
if (!ret) {
/* No problem, just shutdown. */
struct sched_shutdown sched_shutdown = { .reason = SHUTDOWN_poweroff };
HYPERVISOR_sched_op(SCHEDOP_shutdown, &sched_shutdown);
}
do_exit();
}
int app_main(start_info_t *si)
{
printk("Dummy main: start_info=%p\n", si);
main_thread = create_thread("main", call_main, si);
return 0;
}
#endif
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