Re: Crosscompiling Netsnmp-5.6.rc1 for arm-unknown-linux under Cgywin

Thanks Bart,
 
I apologize for my poor knowledge of linux, snmpd.exe.stackdump is created when I ran snmpd.exe with seg core fault.
 
after several tries, I was able to have the net-snmp-5.6.rc1 working for i686-pc-cygwin.
 
I experimented with many configure options, and try it to verify if they work on cygwin first.  I found out that `--enable-static` option won't work on my system.
 
once I minimized the snmpd.exe footprint and have it working for cygwin, I proceeded to crosscompile it for arm-linux
 
crosscompilation went well as expected, here is the ./configure options 
 
./configure \
--host=i686-pc-cygwin \
--target=arm-linux \
--with-cc=arm-unknown-linux-gnu-gcc \
--with-cflags='-Wall -s -static -O2 -Dlinux -mcpu=arm9" \
--with-endianness=little \
--with-ldflags=-Bstatic \
--disable-scripts \
--disable-applications \
--enable-mini-agent \
--with-out-mib-modules=snmpv3mib,mibII/vacm \
--disable-privacy \
--disable-md5 \
--without-openssl \
--with-mib-modules="my_snmpagent"
--without-perl-modules \
--disable-embedded-perl \
--disable-shared \
--with-default-snmp-version="1" \
--with-sys-contact="root" \
--with-sys-location="unknown" --with-logfile="/var/log/snmpd.log" \
--with-persistent-directory="/var/net-snmp" \
--disable-manuals
 
I've read from net-snmp org FAQs, that when crosscompiling, snmpd might be built with some share libraries, and it is not simply to copy the snmpd binary to my target.  I have explicitly set the build as -static.
 
And copied the snmpd binary to my target gives me the`libpthread.so.0` error when ran.  So, I'm back to square one.
 
I've seen the net-snmp-5.6.rc3 on sourceforge, do you know if it contains the patch for pthread?
 
Thanks!!
 
Leo; 

 


--- On Wed, 9/29/10, Bart Van Assche <[email protected]> wrote:


From: Bart Van Assche <[email protected]>
Subject: Re: Crosscompiling Netsnmp-5.6.rc1 for arm-unknown-linux under Cgywin
To: "Leo Lin" <[email protected]>
Cc: "Net-snmp-users" <[email protected]>
Date: Wednesday, September 29, 2010, 3:35 AM



On Tue, Sep 28, 2010 at 6:34 PM, Leo Lin <[email protected]> wrote:






I tried to revert to previous net-snmp-5.6.rc1 setup, by performing
 
make uninstall
 
also, decompress the downloaded .tar.gz again, 
 
and ran `autoreconf -i`
 
I have to run `configure` `make` `make install` several times so it installs it without errors.  after that, it creates
 
snmpd.exe
snmpd.exe.stackdump
snmptrapd.exe
 
only snmptrapd.exe works on my i686-pc-cygwin, but snmpd.exe gave me a `segmentation fault (core dumped)` error.

That's strange.

When I run autoreconf -iv && ./configure ... && make -s && make -s test, compilation proceeds normally and most regression tests pass. snmpd.exe is started and stopped many times during these regression tests.

The output you can expect from make -s test under Cygwin can be found here:
https://sourceforge.net/tracker/index.php?func=detail&aid=2993522&group_id=12694&atid=112694

Bart.

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