From mboxrd@z Thu Jan  1 00:00:00 1970
From: Sagaert Johan <sagaert.johan@skynet.be>
Date: Thu, 15 Mar 2012 15:36:35 +0100
Subject: [Buildroot] core file
In-Reply-To: <20120315141929.1b885c74@skate>
References: <DC8F7388218A402C9FEADA4D9CC577B3@JohanW7>
 <20120315080021.24349b77@skate> <B20373C250564070827FBAAEA65AE6B6@JohanW7>
 <20120315141929.1b885c74@skate>
Message-ID: <486BF3F63CBA4E08B41FE14F46199C39@JohanW7>
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To: buildroot@busybox.net

 
Hi

This is the result from a run with no debug symbols
Also tested using ARM926t instead of the Generic Arm, but this makes no difference. (arm926t = Thumb ?)
Since libdl is the last one, could this one be the one causing the segfault ?


# gdb /usr/bin/curl -c /root/core
GNU gdb (GDB) 7.1

[New Thread 600]
Reading symbols from /usr/lib/libcurl.so.4...(no debugging symbols found)...done
.
Loaded symbols for /usr/lib/libcurl.so.4
Reading symbols from /usr/lib/libz.so.1...(no debugging symbols found)...done.
Loaded symbols for /usr/lib/libz.so.1
Reading symbols from /lib/libc.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libc.so.0
Reading symbols from /usr/lib/libssl.so.1.0.0...(no debugging symbols found)...d
one.
Loaded symbols for /usr/lib/libssl.so.1.0.0
Reading symbols from /usr/lib/libcrypto.so.1.0.0...(no debugging symbols found).
..done.
Loaded symbols for /usr/lib/libcrypto.so.1.0.0
Reading symbols from /lib/libgcc_s.so.1...(no debugging symbols found)...done.
Loaded symbols for /lib/libgcc_s.so.1
Reading symbols from /lib/ld-uClibc.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/ld-uClibc.so.0
Reading symbols from /lib/libdl.so.0...(no debugging symbols found)...done.
Loaded symbols for /lib/libdl.so.0
Core was generated by `curl'.
Program terminated with signal 11, Segmentation fault.
#0  0x00000000 in ?? ()
(gdb)

-----Oorspronkelijk bericht-----
Van: buildroot-bounces at busybox.net [mailto:buildroot-bounces at busybox.net] Namens Thomas Petazzoni
Verzonden: donderdag 15 maart 2012 14:19
Aan: Sagaert Johan
CC: buildroot at busybox.net
Onderwerp: Re: [Buildroot] core file

Le Thu, 15 Mar 2012 13:17:06 +0100,
"Sagaert Johan" <sagaert.johan@skynet.be> a ?crit :

> # curl
> ELF header=0x40074000
> First Dynamic section entry=0x40083ef0 Scanning DYNAMIC section Done 
> scanning DYNAMIC section

Seeing those messages, seems like you have built your uClibc with too many debugging options.

> Reading symbols from 
> /lib/libc.so.0.../home/johan/buildroot/output/toolchain/gdb-7.1a/gdb/utils.c:1246: internal-error: virtual memory exhausted: can't
allocate 59954836 bytes.

And you have built it with debugging symbols it seems, so its size is way too big to load on your target. Either use
cross-gdb+gdbserver, or don't compile the uClibc with debugging symbols.

Thomas
--
Thomas Petazzoni, Free Electrons
Kernel, drivers, real-time and embedded Linux development, consulting, training and support.
http://free-electrons.com
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