From: "Gerry Agbobada" <gerry@gagbo.net>
To: "Emacs development discussions." <emacs-devel@gnu.org>
Subject: [feature/native-comp] Segfaulting in push or nreverse ?
Date: Mon, 30 Nov 2020 17:47:10 +0100 [thread overview]
Message-ID: <457a0d97-fdaa-473e-9f7a-257d5792d70c@www.fastmail.com> (raw)
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Hello,
I've been using native-comp for a while and thanks for that. I think I found an issue with a seemingly simple function that only uses basic elisp procedures.
* Issue
When I run a specific rustic.el function while native-compiled, emacs segfaults; whereas if I delete the .eln file (rustic-flycheck.eln) and use the byte-compiled file instead, the function works as advertised.
I've included the basic code to trigger the segfault and the source of the function for easier inspection
* Reproduction
1) Install rustic.el
2) Native compile rustic.el
3) Run emacs -l rustic-segfault.el
Regards,
Gerry
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(require 'rustic-flycheck)
;; Adds (/tmp/test/foo /tmp/test) unless native-compiled
;; Segfaults when native-compiled
(message "%s" (rustic-flycheck-dirs-list "/tmp/test/foo" "/tmp"))
;; The code
;; (defun rustic-flycheck-dirs-list (start end)
;; "Return a list of directories from START (inclusive) to END (exclusive).
;; E.g., if START is '/a/b/c/d' and END is '/a', return the list
;; '(/a/b/c/d /a/b/c /a/b) in this order.
;; START and END are strings representing file paths. END should be
;; above START in the file hierarchy; if not, the list stops at the
;; root of the file hierarchy."
;; (let ((dirlist)
;; (dir (expand-file-name start))
;; (end (expand-file-name end)))
;; (while (not (or (equal dir (car dirlist)) ; avoid infinite loop
;; (file-equal-p dir end)))
;; (push dir dirlist)
;; (setq dir (directory-file-name (file-name-directory dir))))
;; (nreverse dirlist)))
next reply other threads:[~2020-11-30 16:47 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-30 16:47 Gerry Agbobada [this message]
2020-11-30 20:03 ` [feature/native-comp] Segfaulting in push or nreverse ? Andrea Corallo via Emacs development discussions.
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