From 325e4e383349c605654cb9929b1f5bb41398f5b5 Mon Sep 17 00:00:00 2001
From: patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3>
Date: Wed, 6 Feb 2008 19:04:36 +0000
Subject: [PATCH] Fixes bug 1887170

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@641 42af7a65-404d-4744-a932-0658087f49c3
---
 arch/z80/src/Makefile    |  27 ++--------
 arch/z80/src/mkhpbase.sh | 109 +++++++++++++++++++++++++++++++++++++++
 2 files changed, 112 insertions(+), 24 deletions(-)
 create mode 100755 arch/z80/src/mkhpbase.sh

diff --git a/arch/z80/src/Makefile b/arch/z80/src/Makefile
index 9f5e752d44..c5f77d180b 100644
--- a/arch/z80/src/Makefile
+++ b/arch/z80/src/Makefile
@@ -83,30 +83,9 @@ VPATH		= chip:common
 
 LIBGCC		= ${shell $(CC) -print-libgcc-file-name}
 
-# Supports dynamic sizing of HEAP.  This adds up the size of each memory area.
-# This does not account for the alignment of the _CODE area to 0x0100 (hence
-# the fudge factor 196 is added).
-
-HEAP_BASE	= ${shell \
-		if [ -e pass1.map ]; then \
-			list=`cat pass1.map | grep "SIZE" | sed -e "s/\t//g" | cut -d' ' -f2`; \
-			unset result; \
-			first=yes; \
-			for size in $${list}; do \
-				if [ "$${size}" != "0000" ]; then \
-					if [ -z "$$first" ]; then \
-						result="$${result} + 0x$${size}"; \
-					else \
-						result="(0x$${size}"; \
-						unset first; \
-					fi; \
-				fi; \
-			done; \
-			echo "$${result} + 196)"; \
-		else \
-			echo "(UP_HEAP1_END - 8192)"; \
-		fi; \
-		}
+# Supports dynamic sizing of HEAP.
+#
+HEAP_BASE	= ${shell ./mkhpbase.sh}
 
 ############################################################################
 # Targets
diff --git a/arch/z80/src/mkhpbase.sh b/arch/z80/src/mkhpbase.sh
new file mode 100755
index 0000000000..a2c9a64a82
--- /dev/null
+++ b/arch/z80/src/mkhpbase.sh
@@ -0,0 +1,109 @@
+#/bin/sh
+############################################################################
+# arch/z80/src/mkhpbase.sh
+#
+#   Copyright (C) 2007, 2008 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+#
+# This script supports dynamic sizing of HEAP when building with the SDCC
+# toolchain.  This script adds up the size of each section of the program.
+# This does not account for the alignment of the _CODE area to 0x0100 (hence
+# the fudge factor 196 is added).
+#
+# -- There must be a better way! ---
+#
+#set -x
+
+MAPFILE=pass1.map
+
+# Verify that pass1.map exists
+
+if [ -e ${MAPFILE} ]; then
+
+	# The map file exists, get a list of the sizes of each section
+	# This works for SDCC 2.7.0
+
+	list=`cat ${MAPFILE} | grep "bytes" | sed -e 's/[ \t][ \t]*/ /g' | cut -d' ' -f3`
+
+	# If this is SDCC version 2.6.0, then the list will be empty
+
+	if [ -z "${list}" ]; then
+
+		# This works for SDCC 2.6.0
+
+		list=`cat ${MAPFILE} | grep "SIZE" | sed -e 's/[ \t][ \t]*/ /g' | cut -d' ' -f3`
+	fi
+
+	# Did we successfully create the list of section sizes?
+
+	if [ ! -z "${list}" ]; then
+		unset result
+		first=yes
+
+		# Examine each size in the list
+
+		for size in ${list}; do
+
+			# Skip over zero-length sizes
+
+			if [ "${size}" != "0000" ]; then
+
+				# Each hex size must be prefixed with "0x".  The 
+				# First size must also include a left parenthesis
+
+				if [ -z "$first" ]; then
+					result="${result} + 0x${size}"
+				else
+					result="(0x${size}"
+					unset first
+				fi
+			fi
+		done
+
+		# Add a fudge factor to guarantee no overlap between the code and
+		# the heap and close the expression with a left parenthesis
+
+		echo "${result} + 196)"
+	else
+
+		# We could not parse the map file.  Try to generate some meaningful error
+
+		echo "#\"Makefile: Could not parse map file\""
+		exit 1
+	fi
+else
+	# pass1.map does not yet exist.  In this case, just output a valid, default heap size
+
+	echo "(UP_HEAP1_END - 8192)"
+fi
+
+