GCJ on mipsel-unknown-linux-gnu

Thu Apr 15 17:13:00 GMT 2004

Hi. I'm currently trying to get gcj 3.3.3 up and working on
mipsel-linux, and have gotten pretty far by patching the 3.3.3 release
with the diffs listed here:
<http://gcc.gnu.org/ml/gcc-cvs/2003-10/msg00902.html>
But I've caught a few snags. My first question is whether or not there
are any other patches that I should try incorporating besides those in
the above URL.
The first obvious problem I have is that stack traces aren't pretty;
they are composed of just addresses and "Unknown Source". I understand
that libgcj will try to use dladdr to resolve the function names, but
that dladdr doesn't work on mips (and indeed, if I remove the
`disable_dladdr' line in configure.host, dladdr (or something called
by it) hits a SEGV). The `c++filt'/`addr2line' hack doesn't work,
because addr2line 2.14 can't seem to resolve function names in shared
libraries (I am pretty much forced to use dynamic linking right now,
since just about everything I am trying to run needs to load classes
dynamically).
GNU Awk 3.1.3 seems to really dislike `addr2name.awk'. It fails with
this:
 sh: -c: line 1: syntax error near unexpected token `|'
 sh: -c: line 1: ` | sort'
which looks like a newline is being inserted at the end of ARGV[1]:
 object = ARGV[1];
 ...
 while ("nm " object "| sort" | getline) {
I also see that --enable-interpreter doesn't work. Is this an issue
with libffi? That's what it looks like from the compilation errors.
Thanks.
-- 
Casey Marshall || rsdio@metastatic.org