From 900a3ab184ca5ea766b485e2de871d725f96ceb6 Mon Sep 17 00:00:00 2001 From: Joel Sherrill Date: Wed, 9 Jul 1997 23:57:56 +0000 Subject: Repository damaged -- file re-added --- c/src/lib/libbsp/mips64orion/p4000/Makefile.in | 19 ++ .../libbsp/mips64orion/p4000/startup/bspstart.c | 268 +++++++++++++++++++++ 2 files changed, 287 insertions(+) create mode 100644 c/src/lib/libbsp/mips64orion/p4000/Makefile.in create mode 100644 c/src/lib/libbsp/mips64orion/p4000/startup/bspstart.c (limited to 'c/src/lib/libbsp/mips64orion') diff --git a/c/src/lib/libbsp/mips64orion/p4000/Makefile.in b/c/src/lib/libbsp/mips64orion/p4000/Makefile.in new file mode 100644 index 0000000000..69f5d0452e --- /dev/null +++ b/c/src/lib/libbsp/mips64orion/p4000/Makefile.in @@ -0,0 +1,19 @@ +# +# Makefile,v 1.2 1995/05/31 16:56:01 joel Exp +# + +@SET_MAKE@ +srcdir = @srcdir@ +top_srcdir = @top_srcdir@ +VPATH=@srcdir@ + +include $(RTEMS_CUSTOM) +include $(PROJECT_ROOT)/make/directory.cfg + +SRCS=README + +all: $(SRCS) + +# wrapup is the one that actually builds and installs the library +# from the individual .rel files built in other directories +SUB_DIRS=include startup console liblnk wrapup diff --git a/c/src/lib/libbsp/mips64orion/p4000/startup/bspstart.c b/c/src/lib/libbsp/mips64orion/p4000/startup/bspstart.c new file mode 100644 index 0000000000..ef83394a24 --- /dev/null +++ b/c/src/lib/libbsp/mips64orion/p4000/startup/bspstart.c @@ -0,0 +1,268 @@ +/* bsp_start() + * + * This routine starts the application. It includes application, + * board, and monitor specific initialization and configuration. + * The generic CPU dependent initialization has been performed + * before this routine is invoked. + * + * INPUT: NONE + * + * OUTPUT: NONE + * + * COPYRIGHT (c) 1989-1997. + * On-Line Applications Research Corporation (OAR). + * Copyright assigned to U.S. Government, 1994. + * + * The license and distribution terms for this file may in + * the file LICENSE in this distribution or at + * http://www.OARcorp.com/rtems/license.html. + * + * $Id$ + */ + +/* + * Rather than deleting this, it is commented out to (hopefully) help + * the submitter send updates. + * + * static char _sccsid[] = "@(#)bspstart.c 06/11/96 1.2\n"; + */ + + +#include +#include + +#include + +#include +#include + +#ifdef STACK_CHECKER_ON +#include +#endif + +/* + * The original table from the application and our copy of it with + * some changes. + */ + +extern rtems_configuration_table Configuration; + +rtems_configuration_table BSP_Configuration; + +rtems_cpu_table Cpu_table; + +char *rtems_progname; + +/* Initialize whatever libc we are using + * called from postdriver hook + */ + +#define LIBC_HEAP_SIZE (64 * 1024) + +void bsp_libc_init() +{ + extern int end; + rtems_unsigned32 heap_start; + + heap_start = (rtems_unsigned32) &end; + if (heap_start & (CPU_ALIGNMENT-1)) + heap_start = (heap_start + CPU_ALIGNMENT) & ~(CPU_ALIGNMENT-1); + + /* + * The last parameter to RTEMS_Malloc_Initialize is the "chunk" + * size which a multiple of will be requested on each sbrk() + * call by malloc(). A value of 0 indicates that sbrk() should + * not be called to extend the heap. + */ + + RTEMS_Malloc_Initialize((void *) heap_start, LIBC_HEAP_SIZE, 0); + + /* + * Init the RTEMS libio facility to provide UNIX-like system + * calls for use by newlib (ie: provide __rtems_open, __rtems_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. + */ + + if (BSP_Configuration.ticks_per_timeslice > 0) + libc_init(1); /* reentrant if possible */ + else + libc_init(0); /* non-reentrant */ +} + +/* + * Function: bsp_pretasking_hook + * Created: 95/03/10 + * + * Description: + * BSP pretasking hook. Called just before drivers are initialized. + * Used to setup libc and install any BSP extensions. + * + * NOTES: + * Must not use libc (to do io) from here, since drivers are + * not yet initialized. + * + */ + +void +bsp_pretasking_hook(void) +{ + bsp_libc_init(); + +#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 +} + + +/* + * 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) +{ + int stdin_fd, stdout_fd, stderr_fd; + int error_code; + + error_code = 'S' << 24 | 'T' << 16; + + if ((stdin_fd = __rtems_open("/dev/console", O_RDONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '0' ); + + if ((stdout_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '1' ); + + if ((stderr_fd = __rtems_open("/dev/console", O_WRONLY, 0)) == -1) + rtems_fatal_error_occurred( error_code | 'D' << 8 | '2' ); + + if ((stdin_fd != 0) || (stdout_fd != 1) || (stderr_fd != 2)) + rtems_fatal_error_occurred( error_code | 'I' << 8 | 'O' ); +} + + +extern int end; /* defined by linker */ + +int bsp_start( + int argc, + char **argv, + char **environp +) +{ + if ((argc > 0) && argv && argv[0]) + rtems_progname = argv[0]; + else + rtems_progname = "RTEMS"; + + /* + * Allocate the memory for the RTEMS Work Space. This can come from + * a variety of places: hard coded address, malloc'ed from outside + * RTEMS world (e.g. simulator or primitive memory manager), or (as + * typically done by stock BSPs) by subtracting the required amount + * of work space from the last physical address on the CPU board. + */ + + /* + * Copy the Configuration Table .. so we can change it + */ + + BSP_Configuration = Configuration; + + /* + * Add 1 region for the RTEMS Malloc + */ + + BSP_Configuration.RTEMS_api_configuration->maximum_regions++; + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Add 1 extension for newlib libc + */ + +#ifdef RTEMS_NEWLIB + BSP_Configuration.maximum_extensions++; +#endif + +#ifdef STACK_CHECKER_ON + /* + * Add 1 extension for stack checker + */ + + BSP_Configuration.maximum_extensions++; +#endif + + /* + * Tell libio how many fd's we want and allow it to tweak config + */ + + rtems_libio_config(&BSP_Configuration, BSP_LIBIO_MAX_FDS); + + /* + * Need to "allocate" the memory for the RTEMS Workspace and + * tell the RTEMS configuration where it is. This memory is + * not malloc'ed. It is just "pulled from the air". + */ + + BSP_Configuration.work_space_start = (void *)((unsigned64)((&end) + LIBC_HEAP_SIZE + 0x2000) & ~0x7); + + /* + * initialize the CPU table for this BSP + */ + + /* + * we do not use the pretasking_hook + */ + + Cpu_table.pretasking_hook = bsp_pretasking_hook; /* init libc, etc. */ + + Cpu_table.predriver_hook = NULL; + + 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_stack_size = 4096; + + Cpu_table.extra_mpci_receive_server_stack = 0; + + /* + * Don't forget the other CPU Table entries. + */ + + /* + * Start RTEMS + */ + + rtems_initialize_executive( &BSP_Configuration, &Cpu_table ); + + bsp_cleanup(); + + return 0; +} -- cgit v1.2.3