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Re: No way out.
From: |
Neil Jerram |
Subject: |
Re: No way out. |
Date: |
Mon, 02 Jan 2006 15:42:51 +0000 |
User-agent: |
Gnus/5.1007 (Gnus v5.10.7) Emacs/21.4 (gnu/linux) |
address@hidden (Han-Wen Nienhuys) writes:
> For starters, we could figure out why --debug doesn't work.
Progress so far...
In 1.6.x, the backtrace and full error information is generated by
this code towards the end of scm_ithrow() for the case where there
isn't a matching catch:
if (scm_is_null (winds))
{
scm_handle_by_message (NULL, key, args);
abort ();
}
The backtrace code is inside scm_handle_by_message.
In 1.7.x, we don't call scm_handle_by_message, because there is a
matching catch which was set up as part of scm_with_guile. The C
backtrace after jumping back out to this catch is:
#0 scm_internal_catch (tag=0x1, body=0x40044850 <c_body>,
body_data=0xbffffbe0, handler=0x40044880 <c_handler>,
handler_data=0xbffffbe0) at throw.c:158
#1 0x4004482c in scm_i_with_continuation_barrier (body=0x1, body_data=0x1,
handler=0x1, handler_data=0x1) at continuations.c:336
#2 0x40044913 in scm_c_with_continuation_barrier (func=0x1, data=0x1)
at continuations.c:378
#3 0x400b53a0 in scm_i_with_guile_and_parent (func=0x1, data=0x1, parent=0x1)
at threads.c:645
#4 0x400b5350 in scm_with_guile (func=0x1, data=0x1) at threads.c:633
#5 0x400732a1 in scm_boot_guile (argc=1, argv=0x1, main_func=0x1, closure=0x1)
at init.c:350
#6 0x080489c6 in main (argc=1, argv=0x1) at guile.c:74
So it looks like there needs to be some scm_handle_by_message-like
code somewhere in this call stack. Investigation continuing...
Neil
- Re: No way out., Han-Wen Nienhuys, 2006/01/01
- Message not available
- Re: No way out., Han-Wen Nienhuys, 2006/01/01
- Re: No way out.,
Neil Jerram <=
- Re: No way out., Neil Jerram, 2006/01/02
- Backtrace and enhanced catch, Neil Jerram, 2006/01/04
- Re: Backtrace and enhanced catch, Neil Jerram, 2006/01/14
- Re: Backtrace and enhanced catch, Marius Vollmer, 2006/01/22
- Re: Backtrace and enhanced catch, Neil Jerram, 2006/01/23
- Re: Backtrace and enhanced catch, Marius Vollmer, 2006/01/24
- Re: Backtrace and enhanced catch, Ludovic Courtès, 2006/01/16
- Re: Backtrace and enhanced catch, Neil Jerram, 2006/01/18
- Re: Backtrace and enhanced catch, Ludovic Courtès, 2006/01/19
- Re: Backtrace and enhanced catch, Neil Jerram, 2006/01/21