diff options
Diffstat (limited to '')
-rw-r--r-- | c/src/lib/libbsp/i386/go32/startup/bspstart.c | 165 |
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; } |