From: Launchpad Bug Tracker <1531352@bugs.launchpad.net>
To: qemu-devel@nongnu.org
Subject: [Bug 1531352] Re: QEMU_LD_PREFIX not load correct library order in the PATH
Date: Tue, 19 Jan 2021 04:17:33 -0000 [thread overview]
Message-ID: <161102985382.12094.11013161396315645863.malone@loganberry.canonical.com> (raw)
In-Reply-To: 20160106010526.4703.56064.malonedeb@chaenomeles.canonical.com
[Expired for QEMU because there has been no activity for 60 days.]
** Changed in: qemu
Status: Incomplete => Expired
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https://bugs.launchpad.net/bugs/1531352
Title:
QEMU_LD_PREFIX not load correct library order in the PATH
Status in QEMU:
Expired
Bug description:
run qemu with QEMU_LD_PREFIX argument will not load correct library order in the PATH.
How to reproduce this bug:
These command will download the library of other architectures
wget https://raw.githubusercontent.com/BinaryAnalysisPlatform/qira/master/fetchlibs.sh
bash fetchlibs.sh
This is 32bit binary file,
wget http://train.cs.nctu.edu.tw/files/magic
chmod +x ./magic
qemu-i386 -L /home/apple/libs/i386 /home/apple/magic
This is work fine.
But after you install gcc-multilib, it failed.
sudo apt-get install gcc-multilib
qemu-i386 -L /home/apple/libs/i386 /home/apple/magic
The following is the error message
/home/apple/magic: 0���: ̀Í�: D$(�\x04$\x02: Error 18446744073549536926
Because the order of dynamic linker search the shared library is wrong.
When your system has /lib32 directory, its priority is higher than the QEMU_LD_PREFIX.
If the system not loaded correspond with the dynamic linker, it will crash.
Code flow:
linux-user/main.c:
call loader_exec
linuxload.c:
call load_elf_binary
elfload.c:
in load_elf_binary function
dynamic loader will be elf_interpreter
I think the problem should be here.
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prev parent reply other threads:[~2021-01-19 4:44 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-06 1:05 [Qemu-devel] [Bug 1531352] [NEW] QEMU_LD_PREFIX PATH not work on loading library bananaapple
2016-01-06 2:09 ` [Qemu-devel] [Bug 1531352] " bananaapple
2016-01-06 7:39 ` [Qemu-devel] [Bug 1531352] Re: QEMU_LD_PREFIX PATH loading library is not in the correct order bananaapple
2016-01-06 7:55 ` [Qemu-devel] [Bug 1531352] Re: QEMU_LD_PREFIX not load correct library order in the PATH bananaapple
2016-01-06 8:24 ` bananaapple
2016-01-06 11:58 ` bananaapple
2020-11-19 16:22 ` Thomas Huth
2021-01-19 4:17 ` Launchpad Bug Tracker [this message]
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