From 2a92904f17f619e8a29f4d081a6c8775962edce3 Mon Sep 17 00:00:00 2001
From: Alexey Sheplyakov <asheplyakov@basealt.ru>
Date: Sat, 28 Jan 2023 02:05:10 +0400
Subject: [PATCH] altcross-2stage: use in-tree sources

---
 altcross-2stage.sh | 47 +++++++++++++++++++++++++++++-----------------
 1 file changed, 30 insertions(+), 17 deletions(-)

diff --git a/altcross-2stage.sh b/altcross-2stage.sh
index de4c81d..662e800 100755
--- a/altcross-2stage.sh
+++ b/altcross-2stage.sh
@@ -1,18 +1,27 @@
 #!/bin/bash
 set -e
 set -x
+MYDIR="${0%/*}"
 
-TARGET=aarch64-linux-gnu
-ARCH=aarch64
-LINUX_ARCH=arm64
-QEMU_ARCH=aarch64
+TARGET='loongarch64-linux-gnu'
+ARCH=loongarch64
+LINUX_ARCH=loongarch
+QEMU_ARCH=loongarch64
+TARGET_LD_LINUX='/lib64/ld-linux-loongarch-lp64d.so.1'
+TARGET_LIBDIR=lib64
 
 unset NIL
 
-KERNEL_SOURCE="`find /usr/src/kernel/sources -type f -name 'kernel-source-*.tar'`"
-BINUTILS_SOURCE="`find /usr/src/binutils-source -type f -name 'binutils-*.tar'`"
-GCC_SOURCE="`find /usr/src/gcc-source -type f -name 'gcc-*.tar'`"
-GLIBC_SOURCE="`find /usr/src/glibc-source -type f -name 'glibc-*.tar'`"
+cd "$MYDIR"
+MYDIR=`pwd`
+BUILDDIR="`pwd`/build"
+SRCDIR="`pwd`/src"
+
+KERNEL_SOURCE="`find $(pwd) -maxdepth 1 -type f -name 'kernel-source-*.tar*'`"
+BINUTILS_SOURCE="`find $(pwd) -maxdepth 1 -type f -name 'binutils-*.tar*'`"
+GCC_SOURCE="`find $(pwd) -maxdepth 1 -type f -name 'gcc-*.tar*'`"
+GLIBC_SOURCE="`find $(pwd) -maxdepth 1 -type f -name 'glibc-*.tar*'`"
+GCC_PATCHES="`find $(pwd)/patches/gcc -maxdepth 1 -type f -name '*.patch'`"
 
 getversion() {
 	local fname="${1##*/}"
@@ -24,8 +33,6 @@ getversion() {
 GCC_VERSION=`getversion $GCC_SOURCE`
 GCC_MAJOR_VERSION="${GCC_VERSION%%.*}"
 
-BUILDDIR="`pwd`/build"
-SRCDIR="`pwd`/src"
 INSTALLDIR="`pwd`/inst/altcross-gcc-${GCC_VERSION}"
 BOOTSTRAP_INSTALLDIR="`pwd`/stage1/altcross-gcc-${GCC_VERSION}"
 SYSROOT=/$TARGET/libc
@@ -35,14 +42,17 @@ mkdir -p -m755 "$SRCDIR"
 cd "$SRCDIR"
 
 mkdir -p -m755 linux binutils gcc glibc
-tar -x --strip-components=1 -f "$KERNEL_SOURCE" -C linux
-tar -x --strip-components=1 -f "$BINUTILS_SOURCE" -C binutils
-tar -x --strip-components=1 -f "$GCC_SOURCE" -C gcc
-tar -x --strip-components=1 -f "$GLIBC_SOURCE" -C glibc
+tar -x -a --strip-components=1 -f "$KERNEL_SOURCE" -C linux
+tar -x -a --strip-components=1 -f "$BINUTILS_SOURCE" -C binutils
+tar -x -a --strip-components=1 -f "$GCC_SOURCE" -C gcc
+tar -x -a --strip-components=1 -f "$GLIBC_SOURCE" -C glibc
 
 cd "gcc"
 sed -i contrib/download_prerequisites -e '/base_url=/s/ftp/http/'
 ./contrib/download_prerequisites
+for p in $GCC_PATCHES; do
+	patch -p1 -i $p
+done
 
 mkdir -p -m755 "$INSTALLDIR/bin" "$BOOTSTRAP_INSTALLDIR/bin"
 save_PATH="$PATH"
@@ -66,6 +76,7 @@ cd "$BUILDDIR/obj_binutils"
 	--with-sysroot="$SYSROOT" \
 	--with-build-sysroot="$SYSROOTDIR" \
 	--disable-multilib \
+	--disable-gdb \
 	${NIL}
 
 make -j$(nproc)
@@ -167,10 +178,12 @@ sed -e "s; objcopy ; ../../../../bin/${TARGET}-objcopy ;" -i $BUILDDIR/specs
 mv $BUILDDIR/specs "$INSTALLDIR/lib/gcc/$TARGET/${GCC_MAJOR_VERSION}/"
 
 # relocate libgcc_s
-mv $INSTALLDIR/lib/gcc/$TARGET/lib64/libgcc_s.so* "$INSTALLDIR/lib/gcc/$TARGET/${GCC_MAJOR_VERSION}/"
-rmdir "$INSTALLDIR/lib/gcc/$TARGET/lib64"
-
+if [ -d "$INSTALLDIR/lib/gcc/$TARGET/lib64" ]; then
+	mv $INSTALLDIR/lib/gcc/$TARGET/lib64/libgcc_s.so* "$INSTALLDIR/lib/gcc/$TARGET/${GCC_MAJOR_VERSION}/"
+	rmdir "$INSTALLDIR/lib/gcc/$TARGET/lib64"
+fi
 
+cd "$MYDIR"
 $INSTALLDIR/bin/${TARGET}-gcc -o ${BUILDDIR}/hello_c hello.c || exit 2
 $INSTALLDIR/bin/${TARGET}-g++ -o ${BUILDDIR}/hello_cpp hello.cpp || exit 3
 $INSTALLDIR/bin/${TARGET}-gcc -o ${BUILDDIR}/bye_asm -static -nostdlib bye-${LINUX_ARCH}.S || exit 11