#9 'Makefile.linux' to support IBM PowerPC (ppc64) architecture

[Anonymous]

os.arch='ppc64'

To link objects into a shared library, the (-fPIC) flag
is needed and the wrapper bin compiles only with the
math library (-lm).

With this two changes, the library (libwrapper.so) will
compile as an 'ELF 32-bit MSB shared object'.

When you use the 64-bit release of IBM JDK 1.4.x or 1.
5, loading of libwrapper.so fails with the following
error:

java.lang.NullPointerException
at java.lang.ClassLoader.loadLibrary0(ClassLoader.
java:2171)
at java.lang.ClassLoader.loadLibrary(ClassLoader.
java:1975)
at java.lang.Runtime.load0(Runtime.java:773)
at java.lang.System.load(System.java:885)
at test.loadNativeLibrary(test.java:13)
at test.main(test.java:6)

(great error message...)

This happens, because the IBM JDK cannot load a 32-bit
library into a 64-bit environment. To solve the
problem, compile the wrapper project with the (-m64)
flag.

Note: The 'glibc-devel-2.3.x-y.z.ppc64.rpm' (64-bit)
must be installed on the system!

After this, the library is load fine into the IBM JDK.

With the 'file' command can you check the type:
# file libwrapper.so
libwrapper.so: ELF 64-bit MSB shared object, PowerPC or
cisco 7500, version 1 (SYSV), not stripped

The attachement contains all changes to compile the
project as 64-bit version.

[Nobody/Anonymous]

Logged In: NO

here the Makefile
------------------

COMPILE = gcc -m64 -fPIC -O3 -Wall --pedantic -pthread -
DUSE_NANOSLEEP

INCLUDE=$(JAVA_HOME)/include

DEFS = -I$(INCLUDE) -I$(INCLUDE)/linux

wrapper_SOURCE = wrapper.c wrapperinfo.c wrappereventloop.c
wrapper_unix.c property.c logger.c

libwrapper_so_OBJECTS = wrapperjni_unix.o wrapperinfo.o
wrapperjni.o

BIN = ../../bin
LIB = ../../lib

all: init wrapper libwrapper.so

clean:
rm -f *.o

cleanall: clean
rm -rf *~ .deps
rm -f $(BIN)/wrapper $(LIB)/libwrapper.so

init:
if test ! -d .deps; then mkdir .deps; fi

wrapper: $(wrapper_SOURCE)
$(COMPILE) $(wrapper_SOURCE) -lm -o $(BIN)/wrapper

libwrapper.so: $(libwrapper_so_OBJECTS)
${COMPILE} -shared $(libwrapper_so_OBJECTS) -o $(LIB)/
libwrapper.so

%.o: %.c
@echo '$(COMPILE) -c $<'; \ $(COMPILE) $(DEFS) -Wp,-MD,.deps/$(*F).pp -c $<
@-cp .deps/$(*F).pp .deps/$(*F).P; \ tr ' ' '\012' < .deps/$(*F).pp \ | sed -e 's/^\\$$//' -e '/^$$/ d' -e '/:$$/ d' -e 's/
$$/ :/' \ >> .deps/$(*F).P; \ rm .deps/$(*F).pp