GNU bug report logs - #79120
30.1; Emacs android can't execute programs in /system/bin (127)

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From: Eli Zaretskii <eliz <at> gnu.org>
To: Theia <theia.j.ware <at> gmail.com>, Po Lu <luangruo <at> yahoo.com>, waylandthrowaway <at> gmail.com
Cc: 79120 <at> debbugs.gnu.org
Subject: bug#79120: 30.1; Emacs android can't execute programs in /system/bin (127)
Date: Tue, 29 Jul 2025 14:13:52 +0300

> From: Theia <theia.j.ware <at> gmail.com>
> Date: Mon, 28 Jul 2025 13:16:15 -0700
> 
> With a fresh app install on Android 15+:
> 1. Launch emacs
> 2. M-x term, RET
> 3. Error is written in buffer *terminal*:
> 
>   Process terminal exited abnormally with code 127
> 
> When I first started using emacs on android I assumed this was normal
> and immediately jumped to using emacs with termux. However, a number
> of built-in packages (term, tramp, etc) assume that /system/bin/sh (or
> other programs) are executable. I'm guessing this is some change in
> security on Android's part, but it's unclear to me the exact issue.
> 
> I've tested this on my phone and in an emulator. I acquired the package
> for this test from f-droid.
> 
> For what it is worth, /system/bin/sh can be called from termux on
> Android 15+, so there must be some way to get it to work.

Po Lu, could you perhaps look into this?

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