GCCMain not found & test suite errors fatal?

Sun Jan 3 18:14:00 GMT 2010

On 1/3/2010 8:28 AM, Andrew Haley wrote:
> On 12/31/2009 05:17 PM, John Poole wrote:
>>> You wrote:
>>>>>>>> I suggest you grab ecj.jar and put it in install/share/java. That
>>>> should get you a fully working gcj.
>>>>>>>> Thank you, Andrew, I had already tried to do so.
>>>> Previously I learned the hard way about the ecj.jar issue, so I ran
>> the.../contrib/download_ecj script (which downloaded the ecj.jar from
>> the predefined site) to install the ecj.jar into the trunk directory, I
>> then ran the configuration again so the ecj.jar would be staged into my
>> target for "make ... install".
>>>> In fact, I do have ecj.jar installed in my target tree: /usr/local/gcj.
>>>> I even tried adding it to the include parameter and still get the same
>> result. Maybe I'm not using the correct parameter syntax??
>>>> plug local # pwd
>> /usr/local/gcj/usr/local
>> plug local # find . -name '*ecj*.jar'
>> ./share/java/ecj.jar
>> plug local # export LD_LIBRARY_PATH=/usr/local/gcj/usr/local/lib
>> plug local #
>> plug local # ./bin/gcj -I./lib/:./share/java/ecj.jar -c
>> /var/work/gcj/HelloWorld.java [B
>>> You don't want the -I part.
>> I'd try stracing gcj to find out what's going on
>> $ strace -f -etrace=file gcj -c HelloWorld.java
>> This will tell you where gcj is looking for its jarfiles. Look for
> something like this:
>> ...
> 547 execve("/home/aph/gcc/trunk/install/libexec/gcc/x86_64-unknown-linux-gnu/4.5.0/ecj1", ["/home/aph/gcc/trunk/install/libe"..., "Hello.java", "-g1", "-fbootclasspath=./:/home/aph/gcc"..., "-g1", "-fsource=1.5", "-ftarget=1.5", "-fzip-dependency", "/tmp/ccXyDB9d.zip", "-fzip-target", "/tmp/ccipPqBc.jar"], [/* 42 vars */]) = 0
> ...
> 547 stat("/home/aph/gcc/trunk/install/share/java/ecj.jar", {st_mode=S_IFREG|0644, st_size=1377431, ...}) = 0
> 547 open("/home/aph/gcc/trunk/install/share/java/ecj.jar", O_RDONLY) = 3
> ...
>> Andrew.
>>Perfect.
I followed your suggestion; installed strace and reran the revised 
command line. The output can be referenced at http://pastebin.com/m7cb292d5
The definitive line is:
172. [pid 6423] access("/usr/local/share/java/ecj.jar", F_OK) = -1 
ENOENT (No such file or directory)
See also lines 81,82 and 85.
Basically, the problem is that compiler was looking for ecj.jar under a 
fixed(?) /usr/local/share path instead of the path where I had custom 
installed: /usr/local/gcj; moreover it should have been looking under 
the full path of /usr/local/gcj/usr/local/share/java.
To work-around the path problem, I copied the java directory and its 
contents (on my server, there was no java directory under /usr/share) as 
in the following:
 plug local # pwd
 /usr/local/gcj/usr/local
 plug local # ls share/java
 ecj.jar libgcj-4.5.0.jar libgcj-tools-4.5.0.jar
 plug local # cp share/java/* /usr/local/share/java
 plug local #
 plug local # strace -f -etrace=file bin/gcj -c 
/var/work/gcj/HelloWorld.java
 plug local #
 plug local # ls
 bin HelloWorld.o include lib libexec share
 plug local #
My successful run is posted at http://pastebin.com/m74e42dc9
I have Bug 42409 pending and will update it with attachments and this 
conclusion.
Thank you, Andrew.
- John L. Poole