multiple definition of __getreent

[Sujay Raj]

I am updating my github repo after cleaning the code, for you all to
verify. I will drop a mail when its ready.

Regards,
Sujay Raj


On Sun, Jun 21, 2015 at 10:54 PM, Sujay Raj <sujayraaj at gmail.com> wrote:

> @Chris , I used  'target_link_libraries' in mk_bin/CMakeLists.txt to link
> libc.a and libbsd.a to the monkey-bin target
>
> @Joel, removing -O0 doesn't work too.
>
> I needed libc for three function , initgroups, timegm, and sendfile.
>
> Today I figured that monkey can function without 'initgroups' , if it is
> given all privileges, which I think will be the case when it runs on rtems
> (I tested on linux and when run from root, it can work without initgroups)
> . And I wrote a my_timegm function emulating what timegm does. So these two
> functions aren't needed anymore. (both were tested and working on linux)
>
> The problem comes with sendfile.
>
> So, just to get things working, I also wrote a make shift version of
> sendfile using read/write (which is working on linux, but is theoretically
> slow).
>
> Doing the above removed the requirement of linking libc.a totally.
>
> So yeah, we now have a working version of monkey on rtems using libbsd,
> which is ready to be tested on qemu. Though, this is not the ideal
> circumstances that we would have hoped for, and I certainly would want
> monkey to be using the default sendfile from the library.
>
> Regards,
> Sujay Raj
>
> On Sun, Jun 21, 2015 at 5:00 AM, Joel Sherrill <joel.sherrill at oarcorp.com>
> wrote:
>
>> I suspect it is because he is compiling at -O0.
>>
>> On June 20, 2015 6:13:23 PM CDT, Chris Johns <chrisj at rtems.org> wrote:
>> >On 20/06/2015 2:34 am, Sujay Raj wrote:
>> >> Hi ,
>> >>
>> >> I am working on porting the monkey http server to rtems.
>> >>
>> >> I am working on the bsp: xilinx_zynq_a9_qemu , target: arm-rtems4.11.
>> >>
>> >> There are two libraries that I am supposed to link to create my final
>> >> executable, one is libbsd.a and the other is libc.
>> >>
>> >> libbsd.a links alright, but whenever I try to link libc to create the
>> >> final executable , I get an error:
>> >>
>> >>
>>
>> >/home/raaj/development/rtems/4.11/bsps/arm-rtems4.11/xilinx_zynq_a9_qemu/lib/librtemscpu.a(default-configuration.o):
>> >> In function `__getreent':
>> >>
>> >>
>>
>> >/home/raaj/development/rtems/xilinx_zynq_a9_qemu/arm-rtems4.11/c/xilinx_zynq_a9_qemu/cpukit/libmisc/../../cpukit/../../../xilinx_zynq_a9_qemu/lib/include/rtems/confdefs.h:2420:
>> >> multiple definition of `__getreent'
>> >>
>> >>
>>
>> >/home/raaj/development/rtems/4.11/tools/lib/gcc/arm-rtems4.11/4.9.2/../../../../arm-rtems4.11/lib/thumb/armv7-a/neon/hard/libc.a(lib_a-getreent.o):
>> >>
>> >>
>>
>> >/home/raaj/development/rtems/rtems-source-builder/rtems/build/arm-rtems4.11-gcc-4.9.2-newlib-2.2.0.20150423-x86_64-linux-gnu-1/build/arm-rtems4.11/thumb/armv7-a/neon/hard/newlib/libc/reent/../../../../../../../../../gcc-4.9.2/newlib/libc/reent/getreent.c:13:
>> >> first defined here
>> >>
>> >>
>> >>
>> >> The CFLAGS I am using to compile are :
>> >>
>> >> -march=armv7-a -mthumb -mfpu=neon -mfloat-abi=hard -mtune=cortex-a9
>> >-O0
>> >> -g -qrtems -B/home/raaj/development/rtems/4.11/bsps/arm-rtems4.11/lib
>> >>
>>
>> >-B/home/raaj/development/rtems/4.11/bsps/arm-rtems4.11/xilinx_zynq_a9_qemu/lib/
>> >> --specs bsp_specs
>> >>
>> >>
>> >>
>> >> note: I require libc for three function , initgroups, timegm, and
>> >sendfile.
>> >>
>> >> note: I am working on a cmake build system
>> >>
>> >> If the information given here is insufficient, kindly ask.
>> >>
>> >
>> >Can you please post the full command line you are using to link with ?
>> >
>> >Thanks
>> >Chris
>> >_______________________________________________
>> >devel mailing list
>> >devel at rtems.org
>> >http://lists.rtems.org/mailman/listinfo/devel
>>
>> --joel
>> _______________________________________________
>> devel mailing list
>> devel at rtems.org
>> http://lists.rtems.org/mailman/listinfo/devel
>>
>
>
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