2008-05-15 Joel Sherrill <joel.sherrill@OARcorp.com>

	* aclocal/bsp-bootcards-handles-ram-allocation.m4: New file.

1 files changed, 35 insertions, 0 deletions

diff --git a/c/src/aclocal/bsp-bootcards-handles-ram-allocation.m4 b/c/src/aclocal/bsp-bootcards-handles-ram-allocation.m4
new file mode 100644
index 0000000000..b95a87d4c4
--- /dev/null
+++ b/c/src/aclocal/bsp-bootcards-handles-ram-allocation.m4
@@ -0,0 +1,35 @@
+dnl $Id$
+dnl
+
+dnl RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION - some autoconf voodoo to
+dnl indicate that the BSP is using the shared RAM allocation code in 
+dnl bootcard.c.  This is a new way of doing things that will reduce the
+dnl size of each BSP's bspstart.c and open the door for another round
+dnl of benefits for BSPs that use this scheme.
+dnl
+dnl Benefits:
+dnl   - Reduced code in bspstart.c
+dnl   - Can optionally dirty memory at boot time.
+dnl
+dnl NOTE: This macro is intended to be temporary.  When most of the
+dnl       BSPs use the new shared method, we need to either bulk edit
+dnl       the remaining BSPs to eliminate code using the old way. Or
+dnl       switch the sense of this macro to be required on BSPs using
+dnl       the old way.
+dnl
+dnl       AGAIN: This is intended to be temporary.  Please help by
+dnl              updating BSPs to use the new scheme. 
+
+dnl To be used in bsp-configure scripts
+
+AC_DEFUN([RTEMS_BSP_BOOTCARD_HANDLES_RAM_ALLOCATION],
+ [AC_DEFINE_UNQUOTED([BSP_BOOTCARD_HANDLES_RAM_ALLOCATION],
+  [1],
+  [BSP uses shared logic in bootcard.c]
+)
+RTEMS_BSPOPTS_SET([BSP_DIRTY_MEMORY],[*],[0])
+RTEMS_BSPOPTS_HELP([BSP_DIRTY_MEMORY],
+[If defined, then PSIM will put a non-zero pattern into the RTEMS
+ Workspace and C program heap.  This should assist in finding
+ code that assumes memory starts set to zero.])
+])