[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
bug#14120: invalid load-history in emacsen that CANNOT_DUMP
From: |
andrés ramírez |
Subject: |
bug#14120: invalid load-history in emacsen that CANNOT_DUMP |
Date: |
Mon, 17 Feb 2020 17:14:54 +0000 |
Hi Stefan.
Stefan> Any chance you can try and investigate where/why/how that
Stefan> spurious value gets pushed to `load-history`?
Yes. I am going to try.
Stefan> AFAICT the only place where `load-history` gets modified is in
Stefan> lread.c:build_load_history. Could you add some assertions
Stefan> there to try and catch the sucker?
I was aware of that. At that moment. I pointed to lread.c also. But this
seems too happen during startup (reading the dot emacs setup).
I am going to list what I would need to do for reaching the goal:
1. Recompile Emacs23 (for enabling debugging-symbols)
2. Put a breakpoint on lread.c:build_load_history and watch how
many times it is called and with wich params. It seems a very long list
of params
3. After it. I suppose I should start emacs23 -Q and try lo call one by
one lread.c:build_load_history with those params. And after every
function invocation I would need to check if that symbol(the spurious
one that corrupts the list) have got inside the
loads-history-list.
An idea: As I have a running emacs23 session right now.
--8<---------------cut here---------------start------------->8---
(defun load-history-filename-element (file-regexp)
"Get the first elt of `load-history' whose car matches FILE-REGEXP.
Return nil if there isn't one.
NOTE2ME: upd stringp condition cos of error on tramp"
(let* ((loads load-history)
(load-elt (and loads (car loads))))
(save-match-data
(while (and loads
(or (null (and (car load-elt) (stringp (car load-elt))))
(not (string-match file-regexp (car load-elt)))))
(setq loads (cdr loads)
load-elt (and loads (car loads)))))
load-elt))
--8<---------------cut here---------------end--------------->8---
The function above could be modified for removing the stringp
validation. And every time load-history-filename-element is called when
an error happens that function show me the file on the history to which the
spurious
symbol belongs to?
What Do You think?
AR
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, Andrés Ramírez, 2020/02/17
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, Stefan Monnier, 2020/02/17
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP,
andrés ramírez <=
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, Stefan Monnier, 2020/02/17
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, andrés ramírez, 2020/02/17
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, andrés ramírez, 2020/02/17
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, Stefan Monnier, 2020/02/18
- bug#14120: invalid load-history in emacsen that CANNOT_DUMP, andrés ramírez, 2020/02/18