[OpenWrt-Devel] mempool support question for building software

[Derek Werthmuller]

After some research I've determined the header files I'm looking for are
kernel header files.  They are part of the memory management /memory
allocation section.  The package I'm trying to build uses mempool.h for
faster memory allocation.
Any help or advice on how to get the kernel to export these header files?
Cheers
    Derek


On Fri, Jun 6, 2014 at 6:53 PM, Florian Fainelli <florian at openwrt.org>
wrote:

> 2014-06-06 15:35 GMT-07:00 Derek Werthmuller <thewerthfam at gmail.com>:
> > I'm trying to build a new version of clamav for the brcm2708 platform and
> > have some questions about the new build dependencies for the latest
> version
> > of clamav 98.3.  98.1 built OK and didn't use openssl.
> >
> > The configure portion of the build is asking about mempool support.
> > output snip
> > ....
> > checking for sysctlbyname... no
> > configure: ****** mempool support disabled (mmap not available or not
> > usable)
> > ..
> > mempool.h is found in the -I$(BUILD_DIR)/linux-3.10.36/mm  directory.
>  I've
> > included the directory path in the Target_cpplfags, like below.  Is this
> the
> > right way to do this?
>
> This is not the right way to do this, you should not include Linux
> kernel headers directly that have not been voluntarily exported.
>
> The kernel exports some header files for use by user-programs from its
> include/uapi/ directory. Those kernel headers are staged by the
> toolchain build process in staging_dir/toolchain-*/usr/include/linux.
>
> mempool.h does not appear to be in the headers exported for uapi, so I
> am not sure this is referring to the same mempool.h header file, it
> could be either some external library, or some internal header that
> does not get properly included.
>
> > As the make file will obviously be out of date soon
> > as a new kernel version is used.
> >
> > TARGET_CPPFLAGS += \
> >         -I$(STAGING_DIR)/usr/include \
> >         -I$(STAGING_DIR)/usr/include/openssl \
> >         -I$(STAGING_DIR)/usr/include/crypto \
> >         -I$(STAGING_DIR)/usr/include/libxml2 \
> >         -I$(STAGING_DIR)/usr/lib \
> >         -I$(TOOLCHAIN_DIR)/include \
> >         -I$(BUILD_DIR)/linux-3.10.36/mm \
> >
> > Thanks for the advice in advance.
> >
> > Cheers
> >    Derek
> >
> > _______________________________________________
> > openwrt-devel mailing list
> > openwrt-devel at lists.openwrt.org
> > https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel
> >
>
> --
> Florian
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.infradead.org/pipermail/openwrt-devel/attachments/20140625/759be8d3/attachment.htm>
-------------- next part --------------
_______________________________________________
openwrt-devel mailing list
openwrt-devel at lists.openwrt.org
https://lists.openwrt.org/cgi-bin/mailman/listinfo/openwrt-devel