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From: Finn Thain <fthain@telegraphics.com.au>
To: Rob Landley <rob@landley.net>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
	linux-m68k@vger.kernel.org, Laurent Vivier <Laurent@Vivier.EU>
Subject: GCC?, was Re: Running m68k on qemu with external initramfs?
Date: Mon, 13 Apr 2020 09:30:40 +1000 (AEST)	[thread overview]
Message-ID: <alpine.LNX.2.22.394.2004130922090.8@nippy.intranet> (raw)
In-Reply-To: <238ea76c-fa8e-0134-667b-3864938d9a78@landley.net>

On Sun, 12 Apr 2020, Rob Landley wrote:

> 
> 2) THEN the problem was that gcc is doing something in cd_main so that 
> the "chdir ." at the start of the shell setup (to set $PWD and friends) 
> is segfaulting, but it's a segfault that went away when I got near it 
> with printf() calls, and even write(1, "", 0); right before it made it 
> go away. Given that this code has run on 32 and 64 bit, big and little 
> endian, glibc musl and bionic, and on a target that's both nommu and 
> cares about alignment?

Are you sure that "gcc is doing something [wrong]"? Do you think it could 
be a QEMU bug? Can you provide some information about your tool chain?

> 
> Because I'm still halfway through teaching toysh about all the ${} 
> constructs. (Also, remind me to stick echo -e '\e[?7h' at the start of 
> my init script to undo the STUPID wordwrap disable escape that qemu's 
> bios outputs, which screws up bash's command line history too!)

How awful. It baffles me every time bash manages to mishandle unprintable 
output from a command such that it somehow becomes command line input 
which bash then attempts to execute! I wish I knew how to prevent that.

  parent reply	other threads:[~2020-04-12 23:30 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-11  0:50 Running m68k on qemu with external initramfs? Rob Landley
2020-04-11  6:12 ` Finn Thain
2020-04-12  3:36   ` Rob Landley
2020-04-12  5:29     ` Finn Thain
2020-04-12 12:34       ` Rob Landley
2020-04-12  8:27     ` John Paul Adrian Glaubitz
2020-04-12  8:31       ` Laurent Vivier
2020-04-12 21:48         ` Rob Landley
2020-04-12 23:17           ` Finn Thain
2020-04-11 12:12 ` John Paul Adrian Glaubitz
2020-04-12 12:48   ` Rob Landley
2020-04-12 13:02     ` John Paul Adrian Glaubitz
2020-04-12 21:56       ` Rob Landley
2020-04-12 23:30     ` Finn Thain [this message]
2020-04-13  0:28       ` GCC?, was " Rob Landley
2020-04-13  5:17         ` Finn Thain
2020-04-13  7:07           ` Rob Landley
2020-04-13  7:41             ` John Paul Adrian Glaubitz
2020-04-13  8:27             ` Rob Landley
2020-04-13  9:42               ` Geert Uytterhoeven
2020-04-13 23:02                 ` Finn Thain

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