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-rw-r--r--c/src/lib/libbsp/i386/go32/startup/bspstart.c165
1 files changed, 119 insertions, 46 deletions
diff --git a/c/src/lib/libbsp/i386/go32/startup/bspstart.c b/c/src/lib/libbsp/i386/go32/startup/bspstart.c
index 21594766ad..940c04270a 100644
--- a/c/src/lib/libbsp/i386/go32/startup/bspstart.c
+++ b/c/src/lib/libbsp/i386/go32/startup/bspstart.c
@@ -20,11 +20,18 @@
* $Id$
*/
-#include <rtems.h>
#include <bsp.h>
+#include <rtems/libio.h>
+
#include <libcsupport.h>
-
+#include <z8036.h>
+
+#include <string.h>
+#include <fcntl.h>
+
+#ifdef STACK_CHECKER_ON
#include <stackchk.h>
+#endif
/*
* The original table from the application and our copy of it with
@@ -36,6 +43,8 @@ rtems_configuration_table BSP_Configuration;
rtems_cpu_table Cpu_table;
+char *rtems_progname;
+
/* Initialize whatever libc we are using
* called from postdriver hook
*/
@@ -57,6 +66,14 @@ void bsp_libc_init()
RTEMS_Malloc_Initialize((void *) heap_start, 64 * 1024, 0);
/*
+ * Init the RTEMS libio facility to provide UNIX-like system
+ * calls for use by newlib (ie: provide __open, __close, etc)
+ * Uses malloc() to get area for the iops, so must be after malloc init
+ */
+
+ rtems_libio_init();
+
+ /*
* Set up for the libc handling.
*/
@@ -74,60 +91,116 @@ void bsp_libc_init()
#endif
}
-
-void bsp_start()
+
+/*
+ * After drivers are setup, register some "filenames"
+ * and open stdin, stdout, stderr files
+ *
+ * Newlib will automatically associate the files with these
+ * (it hardcodes the numbers)
+ */
+
+void
+bsp_postdriver_hook(void)
{
- extern void * sbrk( int );
-
- Cpu_table.pretasking_hook = NULL;
- Cpu_table.predriver_hook = bsp_libc_init; /* RTEMS resources available */
- Cpu_table.postdriver_hook = NULL; /* Call our main() for constructors */
- Cpu_table.idle_task = NULL; /* do not override system IDLE task */
- Cpu_table.do_zero_of_workspace = TRUE;
- Cpu_table.interrupt_table_segment = 0;/* get_ds(); */
- Cpu_table.interrupt_table_offset = (void *)0;
- Cpu_table.interrupt_stack_size = 4096;
- Cpu_table.extra_system_initialization_stack = 0;
-
- /*
- * Copy the table
- */
- BSP_Configuration = Configuration;
-
- BSP_Configuration.work_space_start = sbrk( Configuration.work_space_size );
- if ( BSP_Configuration.work_space_start == 0 ) {
- /* Big trouble */
- int write( int, void *, int );
- void _exit( int );
- char msg[] = "bsp_start() couldn't sbrk() RTEMS work space\n";
- write( 2, msg, sizeof msg - 1 );
- _exit( 1 );
- }
-
- /*
- * Add 1 region for Malloc in libc_low
- */
+ int stdin_fd, stdout_fd, stderr_fd;
+
+ if ((stdin_fd = __open("/dev/console", O_RDONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD0');
+
+ if ((stdout_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD1');
+
+ if ((stderr_fd = __open("/dev/console", O_WRONLY, 0)) == -1)
+ rtems_fatal_error_occurred('STD2');
+
+ if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2))
+ rtems_fatal_error_occurred('STIO');
+}
- BSP_Configuration.maximum_regions++;
+/* This is the original command line passed from DOS */
+char ** Go32_Argv;
- /*
- * Add 1 extension for newlib libc
- */
+int main(
+ int argc,
+ char **argv,
+ char **environp
+)
+{
+ extern void * sbrk( int );
+ extern volatile void _exit( int );
+
+ /* Set up arguments that we can access later */
+ Go32_Argv = argv;
+
+ if ((argc > 0) && argv && argv[0])
+ rtems_progname = argv[0];
+ else
+ rtems_progname = "RTEMS";
+
+ Cpu_table.pretasking_hook = NULL;
+ Cpu_table.predriver_hook = bsp_libc_init; /* RTEMS resources available */
+ Cpu_table.postdriver_hook = bsp_postdriver_hook;
+ Cpu_table.idle_task = NULL; /* do not override system IDLE task */
+ Cpu_table.do_zero_of_workspace = TRUE;
+ Cpu_table.interrupt_table_segment = 0;/* get_ds(); */
+ Cpu_table.interrupt_table_offset = (void *)0;
+ Cpu_table.interrupt_stack_size = 4096;
+ Cpu_table.extra_system_initialization_stack = 0;
+
+ /*
+ * Copy the table
+ */
+ BSP_Configuration = Configuration;
+
+ BSP_Configuration.work_space_start = sbrk( Configuration.work_space_size );
+ if ( BSP_Configuration.work_space_start == 0 ) {
+ /* Big trouble */
+ int write( int, void *, int );
+ char msg[] = "bsp_start() couldn't sbrk() RTEMS work space\n";
+ write( 2, msg, sizeof msg - 1 );
+ _exit( 1 );
+ }
+
+ /*
+ * Add 1 region for Malloc in libc_low
+ */
+
+ BSP_Configuration.maximum_regions++;
+
+ /*
+ * Add 1 extension for newlib libc
+ */
#ifdef RTEMS_NEWLIB
- BSP_Configuration.maximum_extensions++;
+ BSP_Configuration.maximum_extensions++;
#endif
- /*
- * Add another extension if using the stack checker
- */
+ /*
+ * Add another extension if using the stack checker
+ */
#ifdef STACK_CHECKER_ON
- BSP_Configuration.maximum_extensions++;
+ BSP_Configuration.maximum_extensions++;
#endif
- rtems_initialize_executive( &BSP_Configuration, &Cpu_table );
- /* does not return */
+ /*
+ * Tell libio how many fd's we want and allow it to tweak config
+ */
+
+ rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS);
+
+ rtems_initialize_executive( &BSP_Configuration, &Cpu_table );
+ /* does not return */
+
+ /* We only return here if the executive has finished. This happens */
+ /* when the task has called exit(). */
+ /* At this point we call _exit() which resides in djgcc. */
+
+ for (;;)
+ _exit( 0 );
+
+ /* no cleanup necessary for GO32 */
- /* no cleanup necessary for GO32 */
+ return 0;
}