#!/bin/sh

# build-aibo-toolchain version 2

# ***************************
# ****** CONFIGURATION ****** 
# ***************************

PREFIX=/usr/local/OPEN_R_SDK
TARGET=mipsel-linux

BINUTILS=binutils-2.15
GCC=gcc-3.3.6
NEWLIB=newlib-1.15.0
OPENRSDK=OPEN_R_SDK-1.1.5-r5

BUILDDIR=bld-
export CFLAGS="-O2 -D_FORTIFY_SOURCE=0 -no-cpp-precomp"


# *******************
# ****** SETUP ******
# ******************* 

PACKAGES="$BINUTILS $GCC $NEWLIB"

# Check packages, if they haven't been de-archived, do it
for p in $PACKAGES; do
	if [ ! -d "$p" ]; then
		if [ -f "$p.tar.gz" ]; then
			echo "Extracting $p.tar.gz"
			tar -xzf "$p.tar.gz" || exit 1;
		elif [ -f "$p.tgz" ]; then
			echo "Extracting $p.tgz"
			tar -xzf "$p.tgz" || exit 1;
		
		elif [ -f "$p.tar.bz2" ]; then
			echo "Extracting $p.tar.bz2"
			tar -xjf "$p.tar.bz2" || exit 1;
		elif [ -f "$p.tbz" ]; then
			echo "Extracting $p.tbz"
			tar -xjf "$p.tbz" || exit 1;
		
		elif [ -f "$p.tar" ]; then
			echo "Extracting $p.tar"
			tar -xf "$p.tar" || exit 1;
		
		else
			echo "Missing package $p in the current directory, cannot continue."
			exit 1;
		fi;
	fi;
done;

# check we can write to the destination directory
if mkdir -p "$PREFIX/tmp$$" > /dev/null 2>&1 ; then
	rmdir "$PREFIX/tmp$$";
else
	echo "Cannot write to destination directory $PREFIX, need to run as root/sudo?"
	exit 1;
fi;

# *********************
# ****** PATCHES ******
# ********************* 

# The 'missing' script included with newlib is kind of broken with texinfo 4.10+
# Use the one from the binutils package
cp "$BINUTILS/missing" "$NEWLIB/missing"

# Make libstdc++-v3 use newlib, adjust version_string to advertise our
# modifications, and make strsignal non-const to match expected signature
if [ ! -e "$GCC/.patched" ] ; then
patch -N -p0 <<'EOF' || exit 1
diff -ru gcc-3.3.6/libstdc++-v3/configure gcc-3.3.6-patched/libstdc++-v3/configure
--- gcc-3.3.6/libstdc++-v3/configure.orig	2003-09-11 12:08:35.000000000 +0900
+++ gcc-3.3.6/libstdc++-v3/configure	2003-11-18 15:12:29.552891100 +0900
@@ -4213,7 +4213,8 @@
   # GLIBCPP_CHECK_MATH_SUPPORT
 
   case "$target" in
-    *-linux*)
+#    *-linux*)
+    *-linux-nevermatch*)
       os_include_dir="os/gnu-linux"
       for ac_hdr in nan.h ieeefp.h endian.h sys/isa_defs.h \
         machine/endian.h machine/param.h sys/machine.h sys/types.h \
diff -ur gcc-3.3.6/gcc/version.c gcc-3.3.6-patched/gcc/version.c
--- gcc-3.3.6/gcc/version.c	2005-09-21 04:58:56.000000000 +0100
+++ gcc-3.3.6-patched/gcc/version.c	2005-12-12 22:10:36.000000000 +0000
@@ -5,7 +5,7 @@
    please modify this string to indicate that, e.g. by putting your
    organization's name in parentheses at the end of the string.  */
 
-const char version_string[] = "3.3.6";
+const char version_string[] = "3.3.6 (AIBO special edition)";
 
 /* This is the location of the online document giving instructions for
    reporting bugs.  If you distribute a modified version of GCC,
diff -ru gcc-3.3.6/libiberty/strsignal.c.old gcc-3.3.6/libiberty/strsignal.c
--- gcc-3.3.6/libiberty/strsignal.c.old	2001-10-17 22:15:41.000000000 +0100
+++ gcc-3.3.6/libiberty/strsignal.c	2005-12-20 20:14:49.000000000 +0000
@@ -409,7 +409,7 @@

 #ifndef HAVE_STRSIGNAL

-const char *
+char *
 strsignal (signo)
   int signo;
 {
EOF
touch "$GCC/.patched"
fi;

if [ ! -e "$NEWLIB/.patched" ] ; then
# AIBO's file system requires a larger BUFSIZ in newlib's stdio.h
# also, reduce vfprintf's stack size, newlib support (?), don't allow negative ctype index
patch -p0 <<'EOF' || exit
diff -ru newlib-1.15.0/newlib/libc/include/stdio.h newlib-1.15.0-patched/newlib/libc/include/stdio.h
--- newlib-1.15.0/newlib/libc/include/stdio.h	2004-11-23 19:45:40.000000000 -0500
+++ newlib-1.15.0-patched/newlib/libc/include/stdio.h	2005-09-11 03:22:28.000000000 -0400
@@ -106,7 +106,7 @@
 #ifdef __BUFSIZ__
 #define	BUFSIZ		__BUFSIZ__
 #else
-#define	BUFSIZ		1024
+#define	BUFSIZ		16384
 #endif
 
 #ifdef __FOPEN_MAX__
diff -ru newlib-1.15.0/newlib/libc/stdio/vfprintf.c newlib-1.15.0-patched/newlib/libc/stdio/vfprintf.c
--- newlib-1.15.0/newlib/libc/stdio/vfprintf.c	2004-06-11 16:37:10.000000000 -0400
+++ newlib-1.15.0-patched/newlib/libc/stdio/vfprintf.c	2005-09-11 03:22:28.000000000 -0400
@@ -543,11 +543,14 @@
 	}
 
 	/* optimise fprintf(stderr) (and other unbuffered Unix files) */
+/* comment out: __sbprintf requires too large stack size (> BUFSIZ) */
+#if 0
 	if ((fp->_flags & (__SNBF|__SWR|__SRW)) == (__SNBF|__SWR) &&
 	    fp->_file >= 0) {
 		_funlockfile (fp);
 		return (__sbprintf (data, fp, fmt0, ap));
 	}
+#endif
 
 	fmt = (char *)fmt0;
 	uio.uio_iov = iovp = iov;
diff -ru newlib-1.15.0/configure newlib-1.15.0-patched/configure
--- newlib-1.15.0/configure	2004-12-16 14:51:28.000000000 -0500
+++ newlib-1.15.0-patched/configure	2005-09-11 03:34:59.000000000 -0400
@@ -1505,7 +1505,7 @@
     noconfigdirs="$noconfigdirs target-newlib ${libgcj}"
     ;;
   mips*-*-linux*)
-    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
+#    noconfigdirs="$noconfigdirs target-newlib target-libgloss"
     ;;
   mips*-*-*)
     noconfigdirs="$noconfigdirs gprof ${libgcj}"
diff -ru newlib-1.15.0/newlib/libc/ctype/ctype_.c newlib-1.15.0-patched/newlib/libc/ctype/ctype_.c
--- newlib-1.15.0/newlib/libc/ctype/ctype_.c	2003-05-13 05:46:47.000000000 -0400
+++ newlib-1.15.0-patched/newlib/libc/ctype/ctype_.c	2005-09-11 04:13:36.000000000 -0400
@@ -77,7 +77,7 @@
 #define ALLOW_NEGATIVE_CTYPE_INDEX
 #endif
 
-#if defined(ALLOW_NEGATIVE_CTYPE_INDEX)
+#if 0
 static _CONST char _ctype_b[128 + 256] = {
 	_CTYPE_DATA_128_256,
 	_CTYPE_DATA_0_127,
EOF
touch "$NEWLIB/.patched"
fi;


# ****************************************
# ****** BUILD AND INSTALL BINUTILS ******
# ****************************************
p="${BINUTILS}";
BLD="${BUILDDIR}${p}";
if [ ! -d "$BLD" ] ; then
	echo "Configuring ${p}..."
	mkdir -p "$BLD" || exit 1;
	(
		cd "$BLD" \
		&& "../${p}/configure" --prefix="$PREFIX" --target="$TARGET" \
	) || exit 1;
fi;
if [ ! -e "$BLD/.installed" ] ; then
	(
		cd "$BLD" \
		&& echo "Building ${p}..." \
		&& make \
		&& echo "Installing ${p}..." \
		&& make install \
		&& touch ".installed"
	) || exit 1;
fi;
# make $TARGET-ar available via PATH
export PATH="$PREFIX/bin:$PATH"


# ***********************************
# ****** BUILD AND INSTALL GCC ******
# ***********************************
p="${GCC}";
BLD="${BUILDDIR}${p}";
if [ ! -d "$BLD" ] ; then
	echo "Configuring ${p}..."
	mkdir -p "$BLD" || exit 1;
	(
		cd "$BLD" \
		&& "../${p}/configure" --prefix="$PREFIX" --target="$TARGET" \
			--with-gnu-as --with-gnu-ld \
			--with-headers="../$NEWLIB/newlib/libc/include" \
			--with-as=$PREFIX/bin/$TARGET-as \
			--with-ld=$PREFIX/bin/$TARGET-ld \
			--disable-shared --enable-languages=c,c++ --disable-threads \
			--disable-libmudflap --with-newlib \
	) || exit 1;
fi;
if [ ! -e "$BLD/.installed" ] ; then
	(
		cd "$BLD" \
		&& echo "Building ${p}..." \
		&& make \
		&& echo "Installing ${p}..." \
		&& make install \
		&& touch ".installed"
	) || exit 1;
fi;


# **************************************
# ****** BUILD AND INSTALL NEWLIB ******
# **************************************
p="${NEWLIB}";
BLD="${BUILDDIR}${p}";
if [ ! -d "$BLD" ] ; then
	echo "Configuring ${p}..."
	mkdir -p "$BLD" || exit 1;
	(
		cd "$BLD" \
		&& "../${p}/configure" --prefix="$PREFIX" --target="$TARGET" --enable-newlib-hw-fp \
	) || exit 1;
fi;
if [ ! -e "$BLD/.installed" ] ; then
	(
		cd "$BLD" \
		&& echo "Building ${p}..." \
		&& make \
		&& echo "Installing ${p}..." \
		&& make install \
		&& touch ".installed"
	) || exit 1;
fi;


# ***************************
# ****** PATCH libc-.a ******
# ***************************
# Says Sony:
# Some functions in libc.a have improper implementation.  Correct
# version of them are provided by libapsys.a.  To avoid mislinking, we
# use libc-.a, from which the duplicated functions are removed.
if [ ! -e "$PREFIX/$TARGET/lib/libc-.a" ] ; then
	echo "Patching libc.a..."
	cp "$PREFIX/$TARGET/lib/libc.a" "$PREFIX/$TARGET/lib/libc-.a" || exit 1;
	"$PREFIX/bin/$TARGET-ar" d "$PREFIX/$TARGET/lib/libc-.a" \
		mallocr.o freer.o reallocr.o callocr.o cfreer.o malignr.o \
		vallocr.o pvallocr.o mallinfor.o mallstatsr.o msizer.o malloptr.o \
		calloc.o malign.o msize.o mstats.o mtrim.o realloc.o valloc.o malloc.o \
		abort.o sbrkr.o exit.o rename.o || exit 1;
	"$PREFIX/bin/$TARGET-ranlib" "$PREFIX/$TARGET/lib/libc-.a" || exit 1;
fi;

# ********************************
# ****** EXTRACT OPEN-R SDK ******
# ********************************
if [ ! -d "$PREFIX/OPEN_R" ] ; then
	p="$OPENRSDK"
	if [ -f "$p.tar.gz" ]; then
		echo "Extracting $p.tar.gz"
		tar -C "$PREFIX" -xzf "$p.tar.gz" || exit 1;
	elif [ -f "$p.tgz" ]; then
		echo "Extracting $p.tgz"
		tar -C "$PREFIX" -xzf "$p.tgz" || exit 1;
	
	elif [ -f "$p.tar.bz2" ]; then
		echo "Extracting $p.tar.bz2"
		tar -C "$PREFIX" -xjf "$p.tar.bz2" || exit 1;
	elif [ -f "$p.tbz" ]; then
		echo "Extracting $p.tbz"
		tar -C "$PREFIX" -xjf "$p.tbz" || exit 1;
	
	elif [ -f "$p.tar" ]; then
		echo "Extracting $p.tar"
		tar -C "$PREFIX" -xf "$p.tar" || exit 1;
	
	else
		echo "Missing package $p in the current directory, cannot continue."
		exit 1;
	fi;
	mv "$PREFIX/OPEN_R_SDK/"* "$PREFIX" || exit 1
fi;


# *************************
# ****** USER REPORT ******
# *************************
echo "All Done!"