From d339e27080ba8a243b8519596012cbace0d5b153 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Thomas=20Lov=C3=A9n?= <thomasloven@gmail.com>
Date: Sat, 11 Nov 2017 17:53:09 +0100
Subject: [PATCH] Compile binutils and gcc from scratch

Turns out the alpine versione doesn't quite work well with low-level 32
bit code...
---
 toolchain/Dockerfile         |  6 ++---
 toolchain/build-toolchain.sh | 46 ++++++++++++++++++++++++++++++++++++
 2 files changed, 49 insertions(+), 3 deletions(-)
 create mode 100755 toolchain/build-toolchain.sh

diff --git a/toolchain/Dockerfile b/toolchain/Dockerfile
index f98aae8..e1eb583 100644
--- a/toolchain/Dockerfile
+++ b/toolchain/Dockerfile
@@ -1,8 +1,8 @@
 FROM alpine
 
-RUN apk --update add make binutils gcc && \
-    apk add grub-bios xorriso qemu-system-x86_64 gdb && \
-    rm -rf /var/cache/apk/*
+ADD build-toolchain.sh /opt/build-toolchain.sh
+
+RUN /opt/build-toolchain.sh
 
 ENV PATH "/opt/toolchain:$PATH"
 ENV MITTOS64 "true"
diff --git a/toolchain/build-toolchain.sh b/toolchain/build-toolchain.sh
new file mode 100755
index 0000000..c1135b7
--- /dev/null
+++ b/toolchain/build-toolchain.sh
@@ -0,0 +1,46 @@
+#!/bin/sh -e
+
+apk --update add build-base
+apk add gmp-dev mpfr-dev mpc1-dev
+
+apk add make
+apk add grub-bios xorriso
+apk add qemu-system-x86_64 gdb
+
+rm -rf /var/cache/apk/*
+
+target=x86_64-elf
+binutils=binutils-2.26
+gcc=gcc-6.1.0
+
+
+cd /opt
+wget http://ftp.gnu.org/gnu/binutils/${binutils}.tar.gz
+tar -xf ${binutils}.tar.gz
+mkdir binutils-build && cd binutils-build
+../${binutils}/configure \
+  --target=${target} \
+  --disable-nls \
+  --disable-werror \
+  --with-sysroot \
+
+make
+make install
+
+cd /opt
+wget http://ftp.gnu.org/gnu/gcc/${gcc}/${gcc}.tar.gz
+tar -xf ${gcc}.tar.gz
+mkdir gcc-build && cd gcc-build
+../${gcc}/configure \
+  --target=${target} \
+  --disable-nls \
+  --enable-languages=c \
+  --without-headers \
+
+make all-gcc all-target-libgcc
+make install-gcc install-target-libgcc
+
+apk del build-base
+
+cd /
+rm -rf /opt