diff options
Diffstat (limited to 'BeOS/ar-fake')
| -rwxr-xr-x | BeOS/ar-fake | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/BeOS/ar-fake b/BeOS/ar-fake new file mode 100755 index 0000000..a4c1f7f --- /dev/null +++ b/BeOS/ar-fake @@ -0,0 +1,153 @@ +#! /bin/sh +# +# Fake "ar" to build the Python shared library on BeOS. This "ar" +# manipulates a .ar-libname file listing all the objects and regenerates +# the shared lib every time it's called. This is probably only suitable +# for things that get built like Python, and you'll probably have to make +# some small modifications here and there. +# +# This stupid hackery is necessary due to the brain-damaged __declspec() +# semantics on x86; on PowerPC, we could just build a static library +# and turn that into a shared library using an exports list. On x86, you'd +# need to use a fake table of pointers to every symbol you wanted to +# export, otherwise you'd end up with an empty shared lib. This is +# progress? +# +# Called via: +# +# ar-fake cr lib-name objects +# ar-fake d lib-name objects +# +# This fake "ar" DOES NOT support any other POSIX "ar" commands! DO NOT +# expect it to behave very intelligently, it's designed to build Python, +# not any old shared lib. + +AR_COMMAND=$1 ; shift +AR_LIB=$1 ; shift +AR_LIB_NAME=$(basename $AR_LIB) +AR_SO_LIB_NAME=${AR_LIB_NAME/.a/.so} +AR_LIB_PATH=${AR_LIB/$AR_LIB_NAME/} +if [ "$AR_LIB_PATH" = "" ] ; then + AR_LIB_PATH="." +fi +AR_CRUD=${AR_LIB_PATH}/.ar-${AR_LIB_NAME} + +AR_CWD=$(pwd) + +# Function to tell is if the arg is an absolute path. Use it like this: +# +# if is_abs pathname ; then ... +is_abs() { + if [ "$1" != "$(echo $1 | sed -e "s,^/,,")" ] ; then + return 0 + fi + return 1 +} + +# Function to build the shared library. It does the right thing for +# PowerPC or x86 systems running BeOS. +build_lib() { + LIB=$1 ; shift + SO_NAME=$1 ; shift + CRUD_NAME=$1 ; shift + + # maybe too much... + EXTRA_LIBS="-lroot -lbe -lnet" + + case $BE_HOST_CPU in + ppc) + AR_CC="mwcc -xms -export pragma -nodup" + GLUE_LOC=/boot/develop/lib/ppc + AR_GLUE="${GLUE_LOC}/glue-noinit.a ${GLUE_LOC}/init_term_dyn.o ${GLUE_LOC}/start_dyn.o" + ;; + + x86) + AR_CC="gcc -nostart -Wl,-soname=${SO_NAME}" + AR_GLUE= + ;; + + *) + # Send me the mystery system (soo-pah aitch!), then we'll talk... + echo "No, no, no... $0 doesn't support $BE_HOST_CPU" + exit 2 + ;; + esac + + # Build a list of the objects... + PARTS="" + while read OBJ_FILE OBJ_PATH ; do + PARTS="$PARTS ${OBJ_PATH}${OBJ_FILE}" + done < $CRUD_NAME + + $AR_CC -o ${LIB%.a}.so $PARTS $AR_GLUE $EXTRA_LIBS > /dev/null 2>&1 + + return 0 +} + +# Make a backup of the old AR_CRUD file, just to be nice, and clean up +# any of our temp files that may be laying around. +if [ -e $AR_CRUD ] ; then + mv -f $AR_CRUD ${AR_CRUD}.old + cp ${AR_CRUD}.old $AR_CRUD +else + touch $AR_CRUD +fi + +if [ -e ${AR_CRUD}.grepper ] ; then + rm -f ${AR_CRUD}.grepper +fi + +case $AR_COMMAND in + cr) + # Add the extra bits to the $AR_CRUD file. + for OBJECT in "$@" ; do + OBJ_NAME=$(basename $OBJECT) + OBJ_PATH=${OBJECT%$OBJ_NAME} + if ! is_abs $OBJ_PATH ; then + OBJ_PATH=${AR_CWD}/${OBJECT} + OBJ_PATH=${OBJ_PATH%$OBJ_NAME} + fi + + # If this is already in there, we have to blow it away so + # we can replace it with the new one. + if egrep -q "^$OBJ_NAME " $AR_CRUD ; then + egrep -v "^$OBJ_NAME " < $AR_CRUD > ${AR_CRUD}.grepper + mv -f ${AR_CRUD}.grepper $AR_CRUD + fi + + echo $OBJ_NAME $OBJ_PATH >> $AR_CRUD + done + + # Now build a library from the files. + build_lib $AR_LIB $AR_SO_LIB_NAME $AR_CRUD + ;; + + d) + # Remove files from the $AR_CRUD file. This isn't terribly + # efficient. + for OBJECT in "$@" ; do + OBJ_NAME=$(basename $OBJECT) + OBJ_PATH=${OBJECT%$OBJ_NAME} + if ! is_abs $OBJ_PATH ; then + OBJ_PATH=${AR_CWD}/${OBJECT} + OBJ_PATH=${OBJ_PATH%$OBJ_NAME} + fi + + # Strip the objects from the list, if they're in there. + egrep -v "^$OBJ_NAME " < $AR_CRUD > ${AR_CRUD}.grepper + mv -f ${AR_CRUD}.grepper $AR_CRUD + done + + # Now build a library from the remaining objects. + build_lib $AR_LIB $AR_SO_LIB_NAME $AR_CRUD + ;; + + *) + echo "$0 error:" + echo " Unsupported command: $AR_COMMAND" + exit 1 + ;; +esac + +# If we make it here, all went well. Hopefully. +exit 0 |