GCJ: undefined reference

[Oscar Martinez de la Torre]

Hello!

	I'm studying gcj for ERC32 processor using RTEMS and I've installed
this RPMs.

venus:~$ rpm -q -a
sparc-rtems-binutils-990901-1
sparc-rtems-gcc-gcc2.95.2newlib1.8.2-1
sparc-rtems-gdb-4.18-1
sparc-rtems-gcj-gcc2.95.2newlib1.8.2-1
sparc-rtems-objc-gcc2.95.2newlib1.8.2-1

	But I can NOT see any libgcj.

venus:~$ rpm -q -l sparc-rtems-gcj-gcc2.95.2newlib1.8.2-1
/opt/rtems/bin
/opt/rtems/bin/gcjh
/opt/rtems/bin/jcf-dump
/opt/rtems/bin/jv-scan
/opt/rtems/bin/sparc-rtems-gcj
/opt/rtems/lib
/opt/rtems/lib/gcc-lib
/opt/rtems/lib/gcc-lib/sparc-rtems
/opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2
/opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/jc1
/opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/jvgenmain
/opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/soft	

	Also it complained about libgcj.specs, so:
touch /opt/rtems/sparc-rtems/lib/libgcj.spec

	Must I compile and install libgcj library? 
	Or is it yet in a RPMs?

	After
unzip Klasses.jar  (from Kaffe-1.0.5)
zip -0 -v -r Klasses.class java kaffe 
export CLASSPATH=./Klasses.class

	So

venus:~/GCJ$ ls
HelloWorldApp.class  HelloWorldApp.java  Klasses.class  Klasses.jar 
java/  kaffe/

	I tried

venus:~/GCJ$ sparc-rtems-gcj -v -o Hello.exe HelloWorldApp.class

	And I got this (also with HelloWorldApp.java)

Reading specs from /opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/specs
Reading specs from /opt/rtems/sparc-rtems/lib/libgcj.spec
gcc driver version 2.95.2 19991024 (release) executing gcc version
egcs-2.91.66
 /opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/jc1 HelloWorldApp.class
-quiet -g1 -version -o /tmp/cc58aXtl.s
GNU Java version 2.95.2 19991024 (release) (sparc-rtems) compiled by GNU
C version egcs-2.91.66 19990314/Linux (egcs-1.1.2 release).
 /opt/rtems/sparc-rtems/bin/as -o /tmp/ccGKDPbW.o /tmp/cc58aXtl.s
 /opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2/collect2 -dc -dp -N -T
/opt/rtems/sparc-rtems/lib/linkcmds -e start -o Hello.exe
/opt/rtems/sparc-rtems/lib/crt0.o
-L/opt/rtems/lib/gcc-lib/sparc-rtems/2.95.2 -L/opt/rtems/sparc-rtems/lib
/tmp/ccGKDPbW.o -lgcc --start-group -lerc32 -lgcc --end-group -lgcc
/opt/rtems/sparc-rtems/bin/ld: warning: cannot find entry symbol start;
defaulting to 02000000
/tmp/ccGKDPbW.o: In function
`HelloWorldApp::main(JArray<java::lang::String *> *)':
/home/omt/GCJ/HelloWorldApp.class(.text+0x10): undefined reference to
`_Jv_InitClass'
/home/omt/GCJ/HelloWorldApp.class(.text+0x18): undefined reference to
`_CL_Q34java4lang6System'
/home/omt/GCJ/HelloWorldApp.class(.text+0x1c): undefined reference to
`_CL_Q34java4lang6System'
/home/omt/GCJ/HelloWorldApp.class(.text+0x20): undefined reference to
`_Jv_InitClass'
/home/omt/GCJ/HelloWorldApp.class(.text+0x28): undefined reference to
`java::lang::System::out'
/home/omt/GCJ/HelloWorldApp.class(.text+0x2c): undefined reference to
`java::lang::System::out'
/tmp/ccGKDPbW.o: In function `HelloWorldApp::HelloWorldApp(void)':
/home/omt/GCJ/HelloWorldApp.class(.text+0x78): undefined reference to
`java::lang::Object::Object(void)'
/tmp/ccGKDPbW.o: In function `global constructors keyed to
HelloWorldApp::main(JArray<java::lang::String *> *)':
/home/omt/GCJ/HelloWorldApp.class(.text+0x9c): undefined reference to
`_Jv_RegisterClass'
/tmp/ccGKDPbW.o: In function
`HelloWorldApp::main(JArray<java::lang::String *> *)':
/home/omt/GCJ/HelloWorldApp.class(.data+0x28): undefined reference to
`java::lang::Object::clone(void)'
/home/omt/GCJ/HelloWorldApp.class(.data+0x2c): undefined reference to
`java::lang::Object::equals(java::lang::Object *)'
/home/omt/GCJ/HelloWorldApp.class(.data+0x30): undefined reference to
`java::lang::Object::finalize(void)'
/home/omt/GCJ/HelloWorldApp.class(.data+0x34): undefined reference to
`java::lang::Object::hashCode(void)'
/home/omt/GCJ/HelloWorldApp.class(.data+0x38): undefined reference to
`java::lang::Object::toString(void)'
/home/omt/GCJ/HelloWorldApp.class(.data+0x4c): undefined reference to
`java::lang::Class virtual table'
/home/omt/GCJ/HelloWorldApp.class(.data+0x60): undefined reference to
`_CL_Q34java4lang6Object'
collect2: ld returned 1 exit status

Thanks,
								Oscar




-- 
Óscar Martínez de la Torre -  Office Phone: +31-(0)71.565.5844
Telecommunication Engineer at Universidad Politécnica de Madrid 
European Space Agency ESTEC/TOS/EMS Erasmus Building Office Nb212 
Keplerlaan,1 - NL 2201 AZ - Noordwijk ZH - The Netherlands
Mail: omt at wm.estec.esa.nl - Personal Mail: omt at etsit.upm.es