From: Warner Losh <imp@bsdimp.com>
To: Will Senn <will.senn@gmail.com>
Cc: TUHS main list <tuhs@minnie.tuhs.org>
Subject: Re: [TUHS] wump.c for v6
Date: Mon, 6 Jan 2020 11:48:02 -0700 [thread overview]
Message-ID: <CANCZdfoEhGBzy13mGvw8jJNz0pvYVjBFy3-9BQ0mN8-4HB7bLw@mail.gmail.com> (raw)
In-Reply-To: <ca32965e-2b2f-83ce-2403-7c99a03e2eb1@gmail.com>
[-- Attachment #1: Type: text/plain, Size: 579 bytes --]
On Mon, Jan 6, 2020 at 11:38 AM Will Senn <will.senn@gmail.com> wrote:
> On 1/6/20 12:29 PM, Warner Losh wrote:
>
> The good news is that disassembly will tell you right away if it was
> written in C or not.
>
>
> OK. I give up. How?
>
Generally, the C compiler generates code that's quite distinctive (at least
PCC does, not sure about Dennis' compiler). People writing free assembler
tend to do really weird things for function entry / return.
And it will likely tell you if it's some weird wrapper around another
binary, though that wasn't too common at bell labs.
Warner
[-- Attachment #2: Type: text/html, Size: 1269 bytes --]
next prev parent reply other threads:[~2020-01-06 18:48 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-06 6:13 Will Senn
2020-01-06 15:20 ` Clem Cole
2020-01-06 15:24 ` Clem Cole
2020-01-06 16:25 ` Will Senn
2020-01-06 16:35 ` Clem Cole
2020-01-06 18:29 ` Warner Losh
2020-01-06 18:38 ` Will Senn
2020-01-06 18:48 ` Warner Losh [this message]
2020-01-06 21:08 ` Clem Cole
2020-01-06 21:38 ` Clem Cole
2020-01-06 22:14 ` Warner Losh
2020-01-06 23:46 ` Will Senn
2020-01-07 20:04 ` Sean Dwyer via TUHS
2020-01-07 21:08 ` Clem Cole
2020-01-08 6:35 ` Sean Dwyer via TUHS
2020-01-06 19:10 ` Bakul Shah
2020-01-06 20:29 ` Will Senn
2020-01-07 0:40 Noel Chiappa
2020-01-07 0:44 ` Warner Losh
2020-01-07 1:58 Noel Chiappa
2020-01-10 14:27 Noel Chiappa
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
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=CANCZdfoEhGBzy13mGvw8jJNz0pvYVjBFy3-9BQ0mN8-4HB7bLw@mail.gmail.com \
--to=imp@bsdimp.com \
--cc=tuhs@minnie.tuhs.org \
--cc=will.senn@gmail.com \
/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 NNTP newsgroup(s).