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[Bug libc/16554] [arm] memset incorrect for negative signed char
- From: "geoff at dyalog dot com" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Wed, 12 Feb 2014 10:53:44 +0000
- Subject: [Bug libc/16554] [arm] memset incorrect for negative signed char
- Auto-submitted: auto-generated
- References: <bug-16554-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16554
--- Comment #2 from Geoff Streeter <geoff at dyalog dot com> ---
Might be blaming the wrong people here - sorry.
Using a standard Raspberian and it looks like the dodgy implementation of
memset is in a library called
libcofi_rpi.so, which gets loaded automatically because /etc/ld.so.preload
contains the line:
/usr/lib/arm-linux-gnueabihf/libcofi_rpi.so
The source code for libcofi_rpi.so seems to come from this project, where you
can see that the implementation of memset doesn't start with anything like "and
r1,r1,#0xff":
https://github.com/bavison/arm-mem
I will log a bug against that project.
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