From: Matt Wette <matt.wette@gmail.com>
To: guile-user@gnu.org
Subject: Re: Getting all symbols in a Scheme file as a list
Date: Sun, 4 Feb 2024 13:39:26 -0800 [thread overview]
Message-ID: <0b465cca-ccef-4e34-a758-0500544e676f@gmail.com> (raw)
In-Reply-To: <03f7199a-daf2-e070-8156-6837d7e20e32@mutix.org>
On 2/4/24 11:50 AM, Christina O'Donnell wrote:
> I'm trying to write a Guile script to trace symbol definition and
> reference
> between modules in a large Guile repo (GNU/Guix), for the purposes of
> large
> scale refactoring.
> ? Seems a little bit baroque to me, I'd expect a simpler way of doing
> it. Any
> libraries anyone knows of?
Maybe use something from (system vm elf ) on the .go files?
$ cd .../ice-9/
$ nm safe.go
00000000000002ac r
0000000000000248 r make-safe-module
00000000000001c4 r safe-environment
I use guile elf to extract info from C-sourced files, but maybe some
tidbits may help:
(let* ((bv (call-with-input-file filename
(lambda (port)
(get-bytevector-n port (and=> (stat port) stat:size)))))
(elf (parse-elf bv))
(pretty-print (elf-named-syms elf))
(define (elf-named-syms elf)
(define (less a b) (< (elf-symbol-value (cdr a)) (elf-symbol-value
(cdr b))))
(let* ((.symtab (elf-section-by-name elf ".symtab"))
(strtab (elf-section elf (elf-section-link .symtab)))
(tbl-len (elf-symbol-table-len .symtab)))
(let loop ((symd '()) (ix 0))
(if (< ix tbl-len)
(let* ((sym (elf-symbol-table-ref elf .symtab ix strtab))
(name (elf-symbol-name sym))
(nlen (string-length name)))
(loop (if (positive? nlen) (acons name sym symd) symd) (1+
ix)))
(sort symd less)))))
prev parent reply other threads:[~2024-02-04 21:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-02-04 19:50 Getting all symbols in a Scheme file as a list Christina O'Donnell
2024-02-04 21:03 ` M
2024-02-05 13:04 ` Christina O'Donnell
2024-02-04 21:39 ` Matt Wette [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
List information: https://www.gnu.org/software/guile/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=0b465cca-ccef-4e34-a758-0500544e676f@gmail.com \
--to=matt.wette@gmail.com \
--cc=guile-user@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).