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scripts/build: a shared sysroot is not thread-safe

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This commit is contained in:
MilhouseVH 2019-02-19 19:03:58 +00:00
parent eef940cc5a
commit 527ea323b8
1 changed files with 26 additions and 13 deletions
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39
scripts/build
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@ -373,13 +373,14 @@ fi
pkg_call_exists post_make_$TARGET && pkg_call post_make_$TARGET
# make install writes directly to sysroot which then needs fixing up - this is racy
if listcontains "configure:target cmake-make:target autotools:target make:target" "${PKG_TOOLCHAIN}:${TARGET}"; then
acquire_exclusive_lock "${PKG_NAME}:${TARGET}" "build"
PKG_NEED_UNLOCK=yes
else
PKG_NEED_UNLOCK=no
fi
# Hack around directly writing/modifying the content of a shared sysroot
# by temporarily installing new files to a package specific sysroot
PKG_ORIG_SYSROOT_PREFIX="${SYSROOT_PREFIX}"
export SYSROOT_PREFIX="${BUILD}/.sysroot/${PKG_NAME}.${TARGET}"
rm -rf "${SYSROOT_PREFIX}"
for d in /usr/lib /usr/include /usr/bin /usr/lib/pkgconfig; do
mkdir -p "${SYSROOT_PREFIX}${d}"
done
# make install
pkg_call_exists pre_makeinstall_$TARGET && pkg_call pre_makeinstall_$TARGET
@ -422,14 +423,26 @@ fi
pkg_call_exists post_makeinstall_$TARGET && pkg_call post_makeinstall_$TARGET
# This is the racy part - one or more processes may be creating, modifying or deleting
# $SYSROOT_PREFIX/usr/lib/*.la files while another (eg. this) process is rewriting the same
# files as it fixes up the libdir prefix. Eugh.
for i in $(find $SYSROOT_PREFIX/usr/lib/ -name "*.la" 2>/dev/null); do
sed -e "s:\(['= ]\)/usr:\\1$SYSROOT_PREFIX/usr:g" -i $i
# Fixup temporary sysroot references to the shared sysroot
for i in $(find "${SYSROOT_PREFIX}/usr/lib" -type f -name "*.la" 2>/dev/null); do
sed -e "s:\(['= ]\)/usr:\\1${PKG_ORIG_SYSROOT_PREFIX}/usr:g" -i "${i}"
done
for i in $(find "${SYSROOT_PREFIX}/usr/bin" -type f -name "*-config" 2>/dev/null); do
sed -e "s#${SYSROOT_PREFIX}/usr#${PKG_ORIG_SYSROOT_PREFIX}/usr#g" -i "${i}"
done
for i in $(find "${SYSROOT_PREFIX}/usr/lib" -type f -name "*.pc" 2>/dev/null); do
sed -e "s#${SYSROOT_PREFIX}/usr#${PKG_ORIG_SYSROOT_PREFIX}/usr#g" -i "${i}"
done
for i in $(find "${SYSROOT_PREFIX}/usr"/{lib,share} -type f -name "*.cmake" 2>/dev/null); do
sed -e "s#${SYSROOT_PREFIX}/usr#${PKG_ORIG_SYSROOT_PREFIX}/usr#g" -i "${i}"
done
[ "${PKG_NEED_UNLOCK}" = "yes" ] && release_exclusive_lock "${PKG_NAME}:${TARGET}" "build"
# Transfer the new sysroot content to the shared sysroot
mkdir -p "${PKG_ORIG_SYSROOT_PREFIX}"
cp -PR "${SYSROOT_PREFIX}"/* "${PKG_ORIG_SYSROOT_PREFIX}"
rm -rf "${SYSROOT_PREFIX}"
export SYSROOT_PREFIX="${PKG_ORIG_SYSROOT_PREFIX}"
if [ "$TARGET" = "target" -o "$TARGET" = "init" ]; then
if [ -d $INSTALL ]; then