Re: error trying to exec 'ecj1': execvp: No such file or directory

[Dr Andrew John Hughes <ahughes@redhat.com>]

On 21:42 Fri 03 Jun     , Jie Liu wrote:
> Hi,
> 
> I am trying to port gcj to RTEMS now and have got boehm-gc, libffi,
> libjava compiled for RTEMS. But when I try to use i386-rtems-gcj to
> compile HelloWorld for RTEMS after install, I got "error trying to
> exec 'ecj1': execvp: No such file or directory" and don't know how to
> fix it. Could somebody give me an help hand or an advice ? Very
> Thanks.
> 
> The error information can be seen below:
> i386-rtems-gcj -v --main=HelloWorld HelloWorld.java -o Hello
> Using built-in specs.
> Reading specs from /mnt/gcj/mytoolchain/lib/gcc/i386-rtems/4.7.0/libgcj.spec
> rename spec startfile to startfileorig
> rename spec lib to liborig
> COLLECT_GCC=i386-rtems-gcj
> COLLECT_LTO_WRAPPER=/mnt/gcj/mytoolchain/libexec/gcc/i386-rtems/4.7.0/lto-wrapper
> Target: i386-rtems
> Configured with: ../gcc-trunk/configure --enable-threads=rtems
> --with-gnu-as --enable-multilib --enable-newlib-mb
> --enable-newlib-iconv --with-gnu-ld --with-newlib --verbose
> --with-system-zlib --disable-nls
> --enable-version-specific-runtime-libs --enable-languages=c,c++,java
> --target=i386-rtems --prefix=/mnt/gcj/mytoolchain/
> --with-gmp=/mnt/gcj/gcj-rtems-work/gmpmpfrmpc
> --with-mpfr=/mnt/gcj/gcj-rtems-work/gmpmpfrmpc
> --with-mpc=/mnt/gcj/gcj-rtems-work/gmpmpfrmpc
> Thread model: rtems
> gcc version 4.7.0 20110409 (experimental) (GCC)
> COLLECT_GCC_OPTIONS='-fsaw-java-file' '-v' '-o' 'Hello'
> '-fbootclasspath=./:/mnt/gcj/mytoolchain/share/java/libgcj-4.7.0.jar'
> '-g1' '-mtune=i386' '-march=i386'
>  ecj1 HelloWorld.java -g1
> -fbootclasspath=./:/mnt/gcj/mytoolchain/share/java/libgcj-4.7.0.jar
> -g1 -fsource=1.5 -ftarget=1.5 -fzip-dependency /tmp/ccuWIrFF.zip
> -fzip-target /tmp/cc7in4l3.jar
> i386-rtems-gcj: error trying to exec 'ecj1': execvp: No such file or directory
> make: *** [Hello] Error 1
> 
> Best Regards,
> Jie

Did you supply the build with an ecj.jar?  contrib/download_ecj will obtain one
for you.  ecj1 is a natively compiled ecj binary used by gcj to compile Java
source code to bytecode:

$ file /home/andrew/build/gcj/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/ecj1
/home/andrew/build/gcj/libexec/gcc/x86_64-unknown-linux-gnu/4.6.0/ecj1: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.9, not stripped

-- 
Andrew :)

Free Java Software Engineer
Red Hat, Inc. (http://www.redhat.com)

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