Example build scripts

Supply the scripts used to build release and prerelease busybox-w32.

(GitHub issue #330)

3 files changed, 124 insertions, 0 deletions

diff --git a/examples/mswin-build/README b/examples/mswin-build/README
new file mode 100644
index 000000000..57a13d8d5
--- /dev/null
+++ b/examples/mswin-build/README
@@ -0,0 +1,6 @@
+These are the scripts used to cross-compile busybox-w32.
+
+The release build performs some additional optimisation and is
+slightly slower as a result.  It also includes information about
+the build platform in the help message.  This assumes the build is
+done on a Fedora Linux system.
diff --git a/examples/mswin-build/mkprerelease b/examples/mswin-build/mkprerelease
new file mode 100755
index 000000000..ea98785d7
--- /dev/null
+++ b/examples/mswin-build/mkprerelease
@@ -0,0 +1,48 @@
+#!/bin/sh
+#
+# Build busybox prerelease binaries
+#
+TARGETS="build_pre_32 build_pre_64"
+
+# If an argument is supplied it overrides the default source directory.
+SRC=busybox-w32
+if [ $# -eq 1 ]
+then
+        SRC=$1
+fi
+
+if [ ! -d $SRC ]
+then
+        echo "$SRC doesn't exist"
+        exit 0
+fi
+
+# remove old and make new build directories
+for i in $TARGETS
+do
+        rm -rf $i
+        cp -rp $SRC $i
+done
+
+# apply default configuration
+for i in $TARGETS
+do
+        if [ $i = "build_pre_64" ]
+        then
+                CONFIG=mingw64_defconfig;
+        elif [ $i = "build_pre_32" ]
+        then
+                CONFIG=mingw32_defconfig;
+        fi
+
+        (cd $i; git checkout master; make ${CONFIG})
+done
+
+# perform build
+for i in $TARGETS
+do
+        (
+        cd $i
+        make -j $(nproc) EXTRAVERSION="-$(git describe --match=FRP | sed 's/FRP/PRE/')"
+        )
+done
diff --git a/examples/mswin-build/mkrelease b/examples/mswin-build/mkrelease
new file mode 100755
index 000000000..7ce9094f6
--- /dev/null
+++ b/examples/mswin-build/mkrelease
@@ -0,0 +1,70 @@
+#!/bin/sh
+#
+# Build 32- and 64-bit busybox binaries for release
+#
+TARGETS="build_32 build_64"
+
+if [ ! -d busybox-w32 ]
+then
+        echo "busybox-w32 doesn't exist"
+        exit 0
+fi
+
+# remove old and make new build directories
+for i in $TARGETS
+do
+        rm -rf $i
+        cp -rp busybox-w32 $i
+done
+
+# apply default configuration
+for i in $TARGETS
+do
+        BITS=32
+        if [ $i = "build_64" ]
+        then
+                BITS=64;
+        fi
+
+        (
+                cd $i
+                make mingw${BITS}_defconfig
+                # link time optimisation, fortify, stack protection
+                sed -e 's/^CONFIG_EXTRA_CFLAGS="\(.*\)"$/CONFIG_EXTRA_CFLAGS="\1 -flto -fstack-protector --param=ssp-buffer-size=4"/' \
+                        -e 's/^CONFIG_EXTRA_CFLAGS=" /CONFIG_EXTRA_CFLAGS="/' \
+                        -e 's/^CONFIG_EXTRA_LDLIBS="\(.*\)"$/CONFIG_EXTRA_LDLIBS="\1 -l:libssp.a"/' \
+                        -e 's/^CONFIG_EXTRA_LDLIBS=" /CONFIG_EXTRA_LDLIBS="/' \
+                        -i .config 
+                # does ld support --disable-reloc-section?
+                eval $(grep CONFIG_CROSS_COMPILER_PREFIX .config)
+                [ $BITS -eq 32 ] && [ -n "$CONFIG_CROSS_COMPILER_PREFIX" ] && \
+                        ${CONFIG_CROSS_COMPILER_PREFIX}ld --help | \
+                                grep -q disable-reloc-section &&
+                                        sed -e 's/^CONFIG_EXTRA_LDFLAGS="\(.*\)"$/CONFIG_EXTRA_LDFLAGS="\1 -Wl,--disable-reloc-section"/' \
+                                                -e 's/^CONFIG_EXTRA_LDFLAGS=" /CONFIG_EXTRA_LDFLAGS="/' \
+                                                -i .config
+        )
+done
+
+# perform build
+for i in $TARGETS
+do
+        BITS=32
+        if [ $i = "build_64" ]
+        then
+                BITS=64;
+        fi
+
+        (
+        cd $i
+        GCCV=`rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-gcc`
+        CRTV=`rpm -q --qf '%{name} %{version}-%{release}\n' mingw${BITS}-crt`
+        GLOB="; noglob"
+        if grep -q ^CONFIG_GLOBBING=y .config
+        then
+                GLOB="; glob"
+        fi
+        VER="($GCCV; $CRTV$GLOB)"
+        make -j $(nproc) EXTRAVERSION="-`git describe --match=FRP`" MINGW_VER="$VER"
+        )
+done