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RE: how to link "gettimeofday" with arm-elf-gcc?
- From: "Yusuke Matsuoka" <yusuke at ee dot ucla dot edu>
- To: "'Andrew Lunn'" <andrew at lunn dot ch>, "'Gary Thomas'" <gary at mlbassoc dot com>
- Cc: <ecos-discuss at sources dot redhat dot com>
- Date: Thu, 20 Nov 2003 14:34:43 -0800
- Subject: RE: [ECOS] how to link "gettimeofday" with arm-elf-gcc?
Hi Andrew and Gary,
Thanks for the reply.
I want to run the KVM(K virtual machine for Java) on eCos and
want to measure the exec time of my Java application on the board.
The original KVM implementation uses "gettimeofday", and I got
the linker error.
Since I need a *millisecond* resolution, is there a better way
rather than including snmp?
I want to keep the footprint small.
(ctime(time()) is a *second* resolution, right?)
Thanks,
Yusuke
> -----Original Message-----
> From: ecos-discuss-owner@sources.redhat.com
> [mailto:ecos-discuss-owner@sources.redhat.com] On Behalf Of
> Andrew Lunn
> Sent: Thursday, November 20, 2003 2:06 PM
> To: Yusuke MATSUOKA
> Cc: ecos-discuss@sources.redhat.com
> Subject: Re: [ECOS] how to link "gettimeofday" with arm-elf-gcc?
>
>
> > I got an error that linker cannot find "gettimeofday" as follows:
>
> gettimeofday was added the posix only recently, so eCos does not yet
> implement it as part of libc.
>
> Either use ctime(time()) or include the snmp stack which does have
> gettimeofday().
>
> Andrew
>
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