#841474 looks like a likely candidate but according to that bug it was
fixed in 3.8.1-17; I have 3.8.1-24. Same with #842142. They both relate
to NEON insructions being emitted for binaries targeted at systems where
such instructions are only optionally supported.
The generated binary doesn't die at a NEON instruction -- here's a partial
disassembly from gdb with the point of the crash marked:
0x00010448 <+0>: push {r11, lr}
0x0001044c <+4>: mov r11, sp
0x00010450 <+8>: sub sp, sp, #8
=> 0x00010454 <+12>: movw r0, #1272 ; 0x4f8
0x00010458 <+16>: movt r0, #1
0x0001045c <+20>: movw r1, #0
0x00010460 <+24>: str r1, [sp, #4]
0x00010464 <+28>: bl 0x102e8 <printf@plt>
0x00010468 <+32>: movw r1, #0
0x0001046c <+36>: str r0, [sp]
0x00010470 <+40>: mov r0, r1
0x00010474 <+44>: mov sp, r11
0x00010478 <+48>: pop {r11, pc}
Cheers
- Ian
--
Ian Chard <i...@chard.org>
sedimentation fault -- beach dumped
On Wed, 19 Jul 2017, Sylvestre Ledru wrote:
Can it be related to bugs #841474 or #842142 ?
S
Le 18/07/2017 à 15:36, Ian Chard a écrit :
Package: clang
Version: 1:3.8-36
Severity: important
Dear Maintainer,
Every binary I compile on an armv5tel system crashes immediately with
'Illegal instruction'. I note that the target is given by clang as
armv7l; could that be the problem?
I tried this with the clang-3.9 package but got the same result.
ian@little:~$ cat woo.c
#include <stdio.h>
int main(void)
{
printf("Hello, world!\n");
return 0;
}
ian@little:~$ clang -o woo woo.c
ian@little:~$ ./woo
Illegal instruction
ian@little:~$ arch
armv5tel
ian@little:~$ clang -v
clang version 3.8.1-24 (tags/RELEASE_381/final)
Target: armv7l-unknown-linux-gnueabi
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation:
/usr/bin/../lib/gcc/arm-linux-gnueabi/4.8
Found candidate GCC installation:
/usr/bin/../lib/gcc/arm-linux-gnueabi/4.8.4
Found candidate GCC installation:
/usr/bin/../lib/gcc/arm-linux-gnueabi/4.9
Found candidate GCC installation:
/usr/bin/../lib/gcc/arm-linux-gnueabi/4.9.2
Found candidate GCC installation:
/usr/bin/../lib/gcc/arm-linux-gnueabi/6.3.0
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabi/4.8
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabi/4.8.4
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabi/4.9
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabi/4.9.2
Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabi/6.3.0
Selected GCC installation: /usr/bin/../lib/gcc/arm-linux-gnueabi/6.3.0
Candidate multilib: .;@m32
Selected multilib: .;@m32
ian@little:~$
-- System Information:
Debian Release: 9.0
APT prefers stable
APT policy: (500, 'stable')
Architecture: armel (armv5tel)
Kernel: Linux 4.9.0-3-marvell
Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8),
LANGUAGE=en_GB:en (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages clang depends on:
ii clang-3.8 1:3.8.1-24
clang recommends no packages.
clang suggests no packages.
-- no debconf information
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