From 9b2c9693692991016e1674856fa147b65156a718 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Thu, 13 Jan 2000 15:07:03 +0000
Subject: Made sweep of changes to get all BSPs to the same point on the
 linkcmds and memory layout.  Next step is to share the same
 bsp_pretasking_hook.

---
 c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c | 62 +++++++++++++++++++++++
 1 file changed, 62 insertions(+)
 create mode 100644 c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c

(limited to 'c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c')

diff --git a/c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c b/c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c
new file mode 100644
index 0000000000..b81acbb6cf
--- /dev/null
+++ b/c/src/lib/libbsp/m68k/shared/m68kpretaskinghook.c
@@ -0,0 +1,62 @@
+/*  
+ *  This routine is an implementation of the bsp_pretasking_hook
+ *  that can be used by all m68k BSPs following linkcmds conventions
+ *  regarding heap, stack, and workspace allocation.
+ *
+ *  COPYRIGHT (c) 1989-1999.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  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 <rtems.h>
+#include <bsp.h>
+#include <libcsupport.h>
+
+/*
+ *  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.
+ *
+ */
+
+extern void bsp_libc_init( void *, unsigned long, int );
+extern rtems_configuration_table  BSP_Configuration;
+
+extern unsigned long  _RamSize;
+extern void          *_WorkspaceBase;
+extern void          *_HeapSize;
+
+void bsp_pretasking_hook(void)
+{
+    void         *heapStart;
+    unsigned long heapSize = (unsigned long)&_HeapSize;
+    unsigned long ramSpace;
+
+    heapStart =  (void *)
+       ((unsigned long)&_WorkspaceBase + BSP_Configuration.work_space_size);
+    ramSpace = _RamSize - (unsigned long) heapStart;
+
+    if (heapSize == 0)
+        heapSize = ramSpace;
+    else if (heapSize > ramSpace)
+        rtems_fatal_error_occurred (('H'<<24) | ('E'<<16) | ('A'<<8) | 'P');
+
+    bsp_libc_init(heapStart, heapSize, 0);
+
+#ifdef RTEMS_DEBUG
+    rtems_debug_enable( RTEMS_DEBUG_ALL_MASK );
+#endif
+
+}
-- 
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