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Re: wrong-type-arg in scm_display_backtrace
From: |
William Morgan |
Subject: |
Re: wrong-type-arg in scm_display_backtrace |
Date: |
Wed, 8 Jan 2003 17:38:47 -0500 |
User-agent: |
Mutt/1.4i |
Excerpts (reformatted) from Neil Jerram's mail of 8 Jan 2003 (EST):
> Are you running with the debugging evaluator?
Ah hah! This was the key. In my invocation of scm_init_guile(), I write:
scm_init_guile();
SCM_DEVAL_P = 1;
SCM_BACKTRACE_P = 1;
SCM_RECORD_POSITIONS_P = 1;
SCM_RESET_DEBUG_MODE;
and now I have backtraces. Yes!!! Now, I just have to figure out how to use
vports to steal the backtrace dump and put it somewhere intelligent...
Having finally succeeded, I have a couple comments:
1) The commands above are wicked voodoo that should be encapsulated in
some kind of scm_enable_debugging() library call. There's no way I,
as the application developer, should be playing with these variables
directly.
2) This whole process has been unnecessarily difficult, considering that
I am doing *only* and *exactly* what anyone who wants to embed Guile
in their program must do (run Guile callbacks, catch errors, display
errors nicely).
Issue #2, at least, is mostly a matter of lack of documentation. I
promise to write up a "how to embed Guile in your C program" document
and post it here.
Thank you, Neil, for all of your help.
--
William <address@hidden>