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From: Laurent Vivier <laurent@vivier.eu>
To: qemu-devel@nongnu.org
Cc: Richard Henderson <rth@twiddle.net>,
	Peter Maydell <peter.maydell@linaro.org>,
	Thomas Huth <huth@tuxfamily.org>,
	Laurent Vivier <laurent@vivier.eu>
Subject: [Qemu-devel] [PATCH] linux-user, s390x: ignore OS ABI value in ELF header
Date: Fri, 10 Nov 2017 20:49:35 +0100	[thread overview]
Message-ID: <20171110194935.17541-1-laurent@vivier.eu> (raw)

I have this error:
bash: /sbin/ldconfig: cannot execute binary file: Exec format error

because /sbin/ldconfig is:
ELF 64-bit MSB executable, IBM S/390, version 1 (GNU/Linux),
statically linked, for GNU/Linux 3.2.0,
BuildID[sha1]=90b64604014aafac9c1a0623b1cf447281d1a382, stripped

OS ABI is GNU/linux

"/bin/ls" works well:

ELF 64-bit MSB shared object, IBM S/390, version 1 (SYSV), dynamically linked,
interpreter /lib/ld64.so.1, for GNU/Linux 3.2.0,
BuildID[sha1]=be9b19143d4657678846f6e5277383071fc1059a, stripped

OS ABI is SYSV

To be able to execute ldconfig, this patch modifies s390x binfmt mask
to ignore the OS ABI value (EI_OSABI, byte 7).

Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 scripts/qemu-binfmt-conf.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/qemu-binfmt-conf.sh b/scripts/qemu-binfmt-conf.sh
index 8afc3eb5bb..e2e1b7544d 100755
--- a/scripts/qemu-binfmt-conf.sh
+++ b/scripts/qemu-binfmt-conf.sh
@@ -85,7 +85,7 @@ sh4eb_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff
 sh4eb_family=sh4
 
 s390x_magic='\x7fELF\x02\x02\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\x16'
-s390x_mask='\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
+s390x_mask='\xff\xff\xff\xff\xff\xff\xff\x00\xff\xff\xff\xff\xff\xff\xff\xff\xff\xfe\xff\xff'
 s390x_family=s390x
 
 aarch64_magic='\x7fELF\x02\x01\x01\x00\x00\x00\x00\x00\x00\x00\x00\x00\x02\x00\xb7\x00'
-- 
2.13.6

             reply	other threads:[~2017-11-10 19:50 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-11-10 19:49 Laurent Vivier [this message]
2017-11-10 19:52 ` [Qemu-devel] [PATCH] linux-user, s390x: ignore OS ABI value in ELF header no-reply
2017-11-12  6:56 ` Thomas Huth
2017-11-12  9:23   ` Laurent Vivier
2017-11-12 17:24     ` Philippe Mathieu-Daudé

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