Patch from Ralf Corsepius <corsepiu@faw.uni-ulm.de> that splits

boot_card() and main() into separate files to ease configuration of other packages. This was a big step in the way to build TCL, ncurses, and zlib for RTEMS.
1999-07-02 18:57:11 +00:00
parent a0a225f4aa
commit c8d91839ff
36 changed files with 131 additions and 121 deletions
--- a/c/src/lib/libbsp/shared/bootcard.c
+++ b/c/src/lib/libbsp/shared/bootcard.c
@@ -0,0 +1,96 @@
+/*
+ *  A simple main which can be used on any embedded target.
+ *
+ *  This style of initialization insures that the C++ global 
+ *  constructors are executed after RTEMS is initialized.
+ *
+ *  Thanks to Chris Johns <cjohns@plessey.com.au> for this idea.
+ *
+ *  COPYRIGHT (c) 1989-1998.
+ *  On-Line Applications Research Corporation (OAR).
+ *  Copyright assigned to U.S. Government, 1994.
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.OARcorp.com/rtems/license.html.
+ *
+ *  $Id$
+ */
+
+#include <bsp.h>
+
+extern void bsp_start( void );
+extern void bsp_cleanup( void );
+
+extern rtems_configuration_table  Configuration;
+extern rtems_configuration_table  BSP_Configuration;
+extern rtems_cpu_table            Cpu_table;
+
+rtems_interrupt_level bsp_isr_level;
+
+/*
+ *  Since there is a forward reference
+ */
+
+int main(int argc, char **argv);
+
+int boot_card(int argc, char **argv)
+{
+  int status;
+
+  /*
+   *  Set default values for the CPU Table fields all ports must have.
+   *  These values can be overridden in bsp_start() but they are
+   *  right most of the time.
+   */
+
+  Cpu_table.pretasking_hook                 = NULL;
+  Cpu_table.predriver_hook                  = NULL;
+  Cpu_table.postdriver_hook                 = NULL;
+  Cpu_table.idle_task                       = NULL;
+  Cpu_table.do_zero_of_workspace            = TRUE;
+  Cpu_table.interrupt_stack_size            = RTEMS_MINIMUM_STACK_SIZE;
+  Cpu_table.extra_mpci_receive_server_stack = 0;
+  Cpu_table.stack_allocate_hook             = NULL;
+  Cpu_table.stack_free_hook                 = NULL;
+
+
+  /*
+   *  Copy the configuration table so we and the BSP wants to change it.
+   */
+
+  BSP_Configuration = Configuration;
+
+  /*
+   *  The atexit hook will be before the static destructor list's entry
+   *  point.
+   */
+
+  bsp_start();
+
+  /*
+   *  Initialize RTEMS but do NOT start multitasking.
+   */
+
+  bsp_isr_level =
+    rtems_initialize_executive_early( &BSP_Configuration, &Cpu_table );
+
+  /*
+   *  Call main() and get the global constructors invoked if there
+   *  are any.
+   */
+
+  status = main(argc, argv);
+
+  /*
+   *  Perform any BSP specific shutdown actions.
+   */
+
+  bsp_cleanup();  
+
+  /*
+   *  Now return to the start code.
+   */
+
+  return status;
+}