[Ecls-list] debugging ecl?

[Pascal J. Bourguignon]

I'm trying to patch ecl (I'd want it to behave like clisp translating
logical pathnames, downcasing the full uppercase names on unix
systems).

Unfortunately, it seems that I wrote bugs, since build/ecl_min breaks
when I invoke the code I modified:


[pjb at kuiper :0.0 ecl]$ build/ecl_min 
;*** Lisp core booted ****
ECL (Embeddable Common Lisp)

> (setf (logical-pathname-translations "TEST") '(("TEST:**;*.*" "/tmp/**/*.*")))

Internal or unrecoverable error in:

Lisp initialization error.

  [22: Invalid argument]
Aborted
[pjb at kuiper :0.0 ecl]$ 



How should I proceed to debug ecl_min?


I tried gdb on ecl_min, but it fails miserably:

(gdb) handle SIGSEGV pass nostop
Signal        Stop	Print	Pass to program	Description
SIGSEGV       No	Yes	Yes		Segmentation fault
(gdb) run
Starting program: /home/pjb/src/planner-ecl/ecl/build/ecl_min ./build/ecl_min
[Thread debugging using libthread_db enabled]
[New Thread 0x7f0a3e2436f0 (LWP 26772)]
[New Thread 0x7f0a3cf6a910 (LWP 26775)]
;*** Lisp core booted ****
ECL (Embeddable Common Lisp)

Program received signal SIGSEGV, Segmentation fault.

Program received signal SIGSEGV, Segmentation fault.

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
(gdb) quit


Is using printf the only way?
-- 
__Pascal Bourguignon__                     http://www.informatimago.com/