mauve debugging

[Andreas Tobler <toa at pop dot agri dot ch>]

Hi all,

may some of you can use these hints too :)

I never managed to debug mauve testcases, until this afternoon.

If you have any additions or other hints please share.

Andreas

P.S, the example below dates on older sources, so the line numbers might 
not be actual anymore.

--------

Here are some steps I did. (credits go partialy to Mark)

Preconditions I have:

A gcc-cvs with a libgcj build plus a mauve-build inside the libjava 
testsuite.

Done on powerpc-apple-darwin7.2.0

I start in the libjava/testsuite/mauve-build dir.

The example I take:

gnu.testlet.java.awt.geom.QuadCurve2D.solveQuadratic

First I have to set some environment variables:

setenv PATH /path-to-your-gij:$PATH
setenv PATH /path-to-your-gcj:$PATH

setenv CLASSPATH /path-to-your-libjava-build
setenv CLASSPATH /path-to-your-mauve-build-dir:$CLASSPATH

If necessary set also the 
LD_LIBRARY_PATH(linux/*nix)/DYLD_LIBRARY_PATH(darwin)

setenv DYLD_LIBRARY_PATH <path-to-libgcc_s>
setenv DYLD_LIBRARY_PATH <path-to-libgcj>

To run a single test case do:
-----------------------------

# echo "gnu.testlet.java.awt.geom.QuadCurve2D.solveQuadratic" | \
  gij gnu.testlet.SimpleTestHarness -verbose -debug

Invoke gdb:
-----------

Now in the mauve-build dir I do:

gdb DejaGnuTestHarness
(gdb) run run gnu.testlet.java.awt.geom.QuadCurve2D.solveQuadratic

Program exited with code 01.

(gdb) b main

Breakpoint 1 at 0x28e0: file /var/tmp//cc0FcCxL.i, line 10.

(gdb) b QuadCurve2D.java:561

Breakpoint 2 at 0x2c9bc0c: file 
/Volumes/xufs/gcc-cvs-dylib/gcc/libjava/java/awt/geom/QuadCurve2D.java, 
line 561.

(gdb) r

Starting program: 
/Volumes/xufs/gcc-cvs-dylib/objdir/powerpc-apple-darwin7.2.0/libjava/testsuite/mauve-build/DejaGNUTestHarness 
run gnu.testlet.java.awt.geom.QuadCurve2D.solveQuadratic
Temporarily disabling shared library breakpoints: 2
Re-enabling shared library breakpoints: 2

Breakpoint 1, main (argc=3, argv=0xbffffa8c) at /var/tmp//cc0FcCxL.i:10
10      /var/tmp//cc0FcCxL.i: No such file or directory.
        in /var/tmp//cc0FcCxL.i

(gdb) c

Continuing.

Breakpoint 2, java.awt.geom.QuadCurve2D.solveQuadratic(double[], 
double[]) (eqn=@e1708, res=@221ca0) at 
/Volumes/xufs/gcc-cvs-dylib/gcc/libjava/java/awt/geom/QuadCurve2D.java:561
561         double c = eqn[0];



Note, I did not manage to set a breakpoint in the mauve test itself. 
Maybe one of the experts has an idea :)