void
bsp_pretasking_hook(void)
{
/*
* These are assigned addresses in the linkcmds file for the BSP. This
* approach is better than having these defined as manifest constants and
* compiled into the kernel, but it is still not ideal when dealing with
* multiprocessor configuration in which each board as a different memory
* map. A better place for defining these symbols might be the makefiles.
* Consideration should also be given to developing an approach in which
* the kernel and the application can be linked and burned into ROM
* independently of each other.
*/
extern unsigned char _HeapStart;
extern unsigned char _HeapEnd;
bsp_libc_init( &_HeapStart, &_HeapEnd - &_HeapStart, 0 );
#ifdef STACK_CHECKER_ON
/*
* Initialize the stack bounds checker
* We can either turn it on here or from the app.
*/
Stack_check_Initialize();
#endif
#ifdef RTEMS_DEBUG
rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
#endif
}
rtems_task Init(
rtems_task_argument ignored
)
{
GetLine *gl = 0;
char *symf = 0, *sysscr=0, *user_script=0, *bufp;
int argc = 0;
int result = 0;
int no_net = 0;
char *dfltSrv = 0;
char *pathspec = 0;
#ifdef NFS_SUPPORT
MntDescRec bootmnt = { "/boot", 0, 0 };
MntDescRec homemnt = { "/home", 0, 0 };
#endif
char *argv[7]={
"Cexp", /* program name */
0,
0,
0,
0
};
rtems_libio_set_private_env();
#ifdef HAVE_PCIBIOS
#if RTEMS_VERSION_ATLEAST(4,6,99)
pci_initialize();
#else
pcib_init();
#endif
#endif
#ifdef STACK_CHECKER_ON
{
extern void Stack_check_Initialize();
Stack_check_Initialize();
}
#endif
#ifdef HAVE_LIBBSPEXT
bspExtInit();
#endif
/* make /tmp directory */
mkTmpDir();
printf("Welcome to RTEMS GeSys\n");
printf("This system $Name: GeSys_2_4 $ was built on %s\n",system_build_date);
printf("$Id: init.c,v 1.43 2008/03/22 20:36:13 guest Exp $\n");
#ifdef EARLY_CMDLINE_GET
{
char *cmdlinetmp;
EARLY_CMDLINE_GET(&cmdlinetmp);
#ifdef HAVE_LIBNETBOOT
/* Let libnetboot process the command line string; all
* special name=value pairs recognized by libnetboot will
* be removed...
*/
nvramFixupBsdnetConfig(1, cmdlinetmp);
#endif
cmdlinePairExtract(cmdlinetmp, putenv, 1);
}
#endif
#if defined(USE_TECLA)
/*
* Install our special line discipline which implements
* TIOCGWINSZ
*/
printf("Installing TIOCGWINSZ line discipline: %s.\n",
ansiTiocGwinszInstall(7) ? "failed" : "ok");
#endif
/*
* Make sure the time-of-day clock is at least initialized.
* The dummy routine just sets the date to 1/1/2000
*/
dummy_clock_init();
cexpInit(cexpExcHandlerInstall);
printf("To skip initialization, press a key now...");
fflush(stdout);
if ( getchar_timeout(fileno(stdin),10) > 0 ) {
printf("OK; skipping to shell");
no_net = 1;
argc = 1;
}
printf("\n");
#ifndef CDROM_IMAGE
#ifndef SKIP_NETINI
#define SKIP_NETINI getenv("SKIP_NETINI")
#endif
/* check if we have a real ifconfig (first is loopback) */
if ( !no_net && (! (SKIP_NETINI) || !BUILTIN_SYMTAB) && rtems_bsdnet_config.ifconfig )
{
gesys_network_start();
}
else
{
fprintf(stderr,"Skipping network initialization - you can do it manually\n");
fprintf(stderr,"by invoking 'gesys_network_start()' (needs BOOTP/DHCP server)\n");
argc = 1;
no_net = 1;
}
#endif
#ifndef CDROM_IMAGE
if ( BOOTPFN ) {
char *slash,*dot;
pathspec = malloc(strlen(BOOTPFN) + (BUILTIN_SYMTAB ? strlen(SYSSCRIPT) : strlen(SYMEXT)) + 1);
strcpy(pathspec, BOOTPFN);
slash = strrchr(pathspec,'/');
if ( BUILTIN_SYMTAB ) {
if ( slash )
strcpy(slash+1,SYSSCRIPT);
else
strcpy(pathspec,SYSSCRIPT);
} else {
dot = strrchr(pathspec,'.');
if (slash>dot)
dot=0;
/* substitute suffix */
if (dot) {
strcpy(dot,SYMEXT);
} else {
strcat(pathspec,SYMEXT);
}
}
}
{
char *tarvar;
void *addr;
int len;
if ( (tarvar=getenv("TARFS")) && 2 == sscanf(tarvar,"%p:%i",&addr,&len) && len > 0 ) {
mkdir("/tar",0777);
rtems_tarfs_load("/tar",addr,len);
}
}
#else
{
extern void *gesys_tarfs_image_start;
extern unsigned long gesys_tarfs_image_size;
printf("Loading TARFS... %s\n",
rtems_tarfs_load("/tmp", gesys_tarfs_image_start, gesys_tarfs_image_size) ? "FAILED" : "OK");
pathspec=strdup(BUILTIN_SYMTAB ? "/tmp/"SYSSCRIPT : "/tmp/rtems.sym");
}
#endif
dflt_fname = "rtems.sym";
#ifdef TFTP_SUPPORT
path_prefix = strdup("/TFTP/BOOTP_HOST/");
#elif defined(NFS_SUPPORT)
path_prefix = strdup(":/remote/rtems:");
#elif defined(RSH_SUPPORT)
path_prefix = strdup("~rtems/");
#endif
getDfltSrv(&dfltSrv);
#ifdef PSIM
{
extern int loadTarImg(int verbose, int lun);
if ( !pathspec ) {
loadTarImg(1, 0);
pathspec = strdup("/bin/"SYSSCRIPT);
} else {
fprintf(stderr,"PSIM: root tarfs not loaded (pathspec was '%s')\n",pathspec);
}
}
#endif
if ( no_net && ( !pathspec || LOCAL_PATH != pathType(pathspec) ) )
goto shell_entry;
/* omit prompting for the symbol file */
if ( pathspec )
goto firstTimeEntry;
/* no pathspec but a builtin symtab ->
* skip reading symtab / system script
*/
if ( BUILTIN_SYMTAB )
goto bare_entry;
do {
chdir("/");
#ifdef NFS_SUPPORT
if ( releaseMount( &bootmnt ) ) {
fprintf(stderr,"Unable to unmount /boot NFS - don't know what to do, sorry\n");
break;
}
#endif
freeps(&symf);
freeps(&user_script);
if (!gl) {
assert( gl = new_GetLine(LINE_LENGTH, 10*LINE_LENGTH) );
/* silence warnings about missing .teclarc */
gl_configure_getline(gl,0,0,0);
}
do {
printf("Symbol file can be loaded by:\n");
#ifdef NFS_SUPPORT
printf(" NFS: [<uid>.<gid>@][<host>]:<export_path>:<symfile_path>\n");
#endif
#ifdef TFTP_SUPPORT
printf(" TFTP: [/TFTP/<host_ip>]<symfile_path>\n");
#endif
#ifdef RSH_SUPPORT
printf(" RSH: [<host>:]~<user>/<symfile_path>\n");
#endif
#ifdef USE_TECLA
bufp = gl_get_line(gl, "Enter Symbol File Name: ",
pathspec,
( pathspec && *pathspec ) ? strlen(pathspec) : 0 );
#else
bufp = my_getline(gl, "Enter Symbol File Name: ", LINE_LENGTH);
#endif
} while (!bufp || !*bufp);
pathspec = realloc(pathspec, strlen(bufp) + 1);
strcpy(pathspec, bufp);
bufp = pathspec + strlen(bufp) - 1;
while ( bufp >= pathspec && ('\n' == *bufp || '\r' == *bufp) )
*bufp-- = 0;
firstTimeEntry:
{
int fd = -1, ed = -1;
char *slash;
getDfltSrv( &dfltSrv );
#ifdef TFTP_SUPPORT
chdir("/TFTP/BOOTP_HOST/");
#endif
switch ( pathType(pathspec) ) {
case LOCAL_PATH:
fd = open(pathspec,O_RDONLY);
if ( fd >= 0 )
symf = strdup(pathspec);
break;
#ifdef TFTP_SUPPORT
case TFTP_PATH:
fd = isTftpPath( &dfltSrv, pathspec, &ed, &symf );
break;
#endif
#ifdef NFS_SUPPORT
case NFS_PATH:
fd = isNfsPath( &dfltSrv, pathspec, &ed, &symf, &bootmnt );
break;
#endif
#ifdef RSH_SUPPORT
case RSH_PATH:
fd = rshCopy( &dfltSrv, pathspec, &symf );
break;
#endif
default:
fprintf(stderr,"Unrecognized pathspec; maybe remote FS support is not compiled in ?\n");
break;
}
if ( 0==result && dfltSrv ) {
/* allow the default server to be overridden by the pathspec
* during the first pass (original pathspec from boot)
*/
theSrv = strdup(dfltSrv);
}
if ( (fd < 0) && !BUILTIN_SYMTAB ) {
fprintf(stderr,"Unable to open symbol file (%s)\n",
-11 == fd ? "not a valid pathspec" : strerror(errno));
continue;
}
if ( fd >= 0 )
close(fd);
if ( ed >= 0 )
close(ed);
freeps( &sysscr );
sysscr = strdup(SYSSCRIPT);
#if defined(RSH_SUPPORT) && !defined(CDROM_IMAGE)
if ( !ISONTMP(symf) ) {
#endif
if ( (slash = strrchr(symf,'/')) ) {
int ch=*(slash+1);
*(slash+1)=0;
printf("Change Dir to '%s'",symf);
if ( chdir(symf) )
printf(" FAILED: %s",strerror(errno));
fputc('\n',stdout);
*(slash+1)=ch;
}
#if defined(RSH_SUPPORT) && !defined(CDROM_IMAGE)
} else {
char *scrspec = malloc( strlen(pathspec) + strlen(SYSSCRIPT) + 1);
strcpy(scrspec, pathspec);
if ( (slash = strrchr(scrspec, '/')) )
strcpy( slash+1, SYSSCRIPT );
else
strcpy( scrspec, SYSSCRIPT );
getDfltSrv( &dfltSrv );
freeps( &sysscr );
if ( (fd = rshCopy( &dfltSrv, scrspec, &sysscr )) >= 0 ) {
close( fd );
} else {
freeps( &sysscr );
}
freeps(&scrspec);
}
#endif
bare_entry:
printf("Trying symfile '%s', system script '%s'\n",
BUILTIN_SYMTAB ? "BUILTIN" : symf,
sysscr ? sysscr :"(NONE)");
argc = 1;
#ifdef DEFAULT_CPU_ARCH_FOR_CEXP
if ( DEFAULT_CPU_ARCH_FOR_CEXP && *DEFAULT_CPU_ARCH_FOR_CEXP ) {
argv[argc++] = "-a";
argv[argc++] = DEFAULT_CPU_ARCH_FOR_CEXP;
}
#endif
if ( !BUILTIN_SYMTAB ) {
argv[argc++] = "-s";
argv[argc++] = symf;
}
if ( sysscr ) {
argv[argc++] = sysscr;
}
shell_entry:
result = argc > 1 ? cexp_main(argc, argv) : 0;
if ( ISONTMP( symf ) )
unlink( symf );
if ( sysscr && ISONTMP( sysscr ) )
unlink( sysscr );
freeps(&symf);
freeps(&sysscr);
if (!result || CEXP_MAIN_NO_SCRIPT==result) {
int rc;
if (gl) {
del_GetLine(gl);
gl = 0;
}
freeps(&pathspec);
/* try a user script */
if ((user_script=getenv("INIT"))) {
printf("Trying user script '%s':\n",user_script);
pathspec = strdup(user_script); user_script = 0;
getDfltSrv(&dfltSrv);
switch ( pathType( pathspec ) ) {
#ifdef NFS_SUPPORT
case NFS_PATH:
if ( 0 == (rc = isNfsPath( &dfltSrv, pathspec, 0, &user_script, &homemnt ) ) ) {
/* valid NFS path; try to mount; */
if ( !bootmnt.uidhost || strcmp( homemnt.uidhost, bootmnt.uidhost ) ||
!bootmnt.rpath || strcmp( homemnt.rpath , bootmnt.rpath ) )
rc = nfsMount(homemnt.uidhost, homemnt.rpath, homemnt.mntpt);
}
break;
#endif
case RSH_PATH:
fprintf(stderr,"RSH download of user scripts is not supported\n");
rc = -1;
break;
#ifdef TFTP_SUPPORT
case TFTP_PATH:
rc = isTftpPath( &dfltSrv, pathspec, 0, &user_script );
break;
#endif
case LOCAL_PATH:
/* they might refer to a path on the local FS (already mounted NFS) */
user_script = pathspec; pathspec = 0;
rc = 0;
break;
default:
fprintf(stderr,"Invalid path specifier; support for remote FS not compiled in?\n");
rc = -1;
break;
}
freeps(&pathspec);
argc = 2;
if ( rc ) {
fprintf(stderr,"Unable to determine filesystem for user script\n");
freeps(&user_script);
argc = 1;
} else {
if ((slash = strrchr(user_script,'/'))) {
/* chdir to where the user script resides */
int ch=*(++slash);
*(slash)=0;
printf("Change Dir to '%s'\n",user_script);
chdir(user_script);
*(slash)=ch;
argv[1]=slash;
} else {
argv[1]=user_script;
}
}
argc=2;
} else {
argc=1;
}
do {
result=cexp_main(argc,argv);
argc=1;
freeps(&user_script);
} while (!result || CEXP_MAIN_NO_SCRIPT==result);
chdir("/");
#ifdef NFS_SUPPORT
releaseMount( &homemnt );
#endif
}
}
switch (result) {
case CEXP_MAIN_NO_SYMS :
fprintf(stderr,"CEXP_MAIN_NO_SYMS\n");
result = 0;
break;
case CEXP_MAIN_INVAL_ARG: fprintf(stderr,"CEXP_MAIN_INVAL_ARG\n"); break;
case CEXP_MAIN_NO_SCRIPT: fprintf(stderr,"CEXP_MAIN_NO_SCRIPT\n"); break;
case CEXP_MAIN_KILLED : fprintf(stderr,"CEXP_MAIN_KILLED\n"); break;
case CEXP_MAIN_NO_MEM : fprintf(stderr,"CEXP_MAIN_NO_MEM\n"); break;
default:
if (result)
fprintf(stderr,"unknown error\n");
}
} while ( !result ); /* retry asking for a sym-filename */
if (gl) {
del_GetLine(gl);
gl = 0;
}
fprintf(stderr,"Unable to execute CEXP - suspending initialization...\n");
rtems_task_suspend(RTEMS_SELF);
exit( 1 );
}
