* Help needed with loading a gcc plugin
@ 2013-06-22 7:31 Sandeep K Chaudhary
2013-06-22 22:02 ` Ian Lance Taylor
0 siblings, 1 reply; 4+ messages in thread
From: Sandeep K Chaudhary @ 2013-06-22 7:31 UTC (permalink / raw)
To: gcc-help
Hi guys,
I am trying to run a gcc plugin that I created. I have followed the
steps mentioned in the followiing tutorial to create the plugin
http://lwn.net/Articles/457543/
I am able to successfully build the plugin shared object. However, I
can not run the plugin. It gives errors related to undefined symbols.
Below is the terminal snippet.
sandeep@ubuntu:~/myplugin$ /usr/bin/gcc
-fplugin=/home/sandeep/myplugin/speller.so -c test.c
cc1: error: cannot load plugin /home/sandeep/myplugin/speller.so
/home/sandeep/myplugin/speller.so: undefined symbol: warning_at
I can see that the mentioned symbol is indeed undefined using following
sandeep@ubuntu:~/myplugin$ nm -D -C speller.so | grep warning_at
U warning_at
And I see that
sandeep@ubuntu:/usr/lib/gcc/x86_64-linux-gnu/4.7.2$ pwd
/usr/lib/gcc/x86_64-linux-gnu/4.7.2
sandeep@ubuntu:/usr/lib/gcc/x86_64-linux-gnu/4.7.2$ nm -D -C $(gcc
-print-file-name=cc1) | grep "warning_"
0000000000c1e5a0 T warning_at(unsigned int, int, char const*, ...)
What am I missing? How should I link the libraries correctly?
Please help.
Thanks,
Sandeep.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Help needed with loading a gcc plugin
2013-06-22 7:31 Help needed with loading a gcc plugin Sandeep K Chaudhary
@ 2013-06-22 22:02 ` Ian Lance Taylor
2013-06-23 4:11 ` Sandeep K Chaudhary
2013-06-25 6:00 ` Sandeep K Chaudhary
0 siblings, 2 replies; 4+ messages in thread
From: Ian Lance Taylor @ 2013-06-22 22:02 UTC (permalink / raw)
To: Sandeep K Chaudhary; +Cc: gcc-help
On Sat, Jun 22, 2013 at 12:31 AM, Sandeep K Chaudhary
<babbusandy2006@gmail.com> wrote:
> cc1: error: cannot load plugin /home/sandeep/myplugin/speller.so
> 0000000000c1e5a0 T warning_at(unsigned int, int, char const*, ...)
> What am I missing? How should I link the libraries correctly?
You need to compile your plugin with the C++ compiler.
Ian
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Help needed with loading a gcc plugin
2013-06-22 22:02 ` Ian Lance Taylor
@ 2013-06-23 4:11 ` Sandeep K Chaudhary
2013-06-25 6:00 ` Sandeep K Chaudhary
1 sibling, 0 replies; 4+ messages in thread
From: Sandeep K Chaudhary @ 2013-06-23 4:11 UTC (permalink / raw)
To: Ian Lance Taylor; +Cc: gcc-help
Hi Lance,
Thanks for the reply ! I tried using C++ instead of C compiler but I
still got the same error. I don't know what is wrong with the way I'm
trying to build/load my plugin.
Regards,
Sandeep.
On Sat, Jun 22, 2013 at 6:02 PM, Ian Lance Taylor <iant@google.com> wrote:
> On Sat, Jun 22, 2013 at 12:31 AM, Sandeep K Chaudhary
> <babbusandy2006@gmail.com> wrote:
>
>> cc1: error: cannot load plugin /home/sandeep/myplugin/speller.so
>
>> 0000000000c1e5a0 T warning_at(unsigned int, int, char const*, ...)
>
>> What am I missing? How should I link the libraries correctly?
>
> You need to compile your plugin with the C++ compiler.
>
> Ian
--
Thanks and regards,
Sandeep K Chaudhary.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: Help needed with loading a gcc plugin
2013-06-22 22:02 ` Ian Lance Taylor
2013-06-23 4:11 ` Sandeep K Chaudhary
@ 2013-06-25 6:00 ` Sandeep K Chaudhary
1 sibling, 0 replies; 4+ messages in thread
From: Sandeep K Chaudhary @ 2013-06-25 6:00 UTC (permalink / raw)
To: Ian Lance Taylor; +Cc: gcc-help
I was making a mistake in the Makefile. And yes, g++ worked. Thanks a lot !
Regards,
Sandeep.
On Sat, Jun 22, 2013 at 6:02 PM, Ian Lance Taylor <iant@google.com> wrote:
> On Sat, Jun 22, 2013 at 12:31 AM, Sandeep K Chaudhary
> <babbusandy2006@gmail.com> wrote:
>
>> cc1: error: cannot load plugin /home/sandeep/myplugin/speller.so
>
>> 0000000000c1e5a0 T warning_at(unsigned int, int, char const*, ...)
>
>> What am I missing? How should I link the libraries correctly?
>
> You need to compile your plugin with the C++ compiler.
>
> Ian
--
Thanks and regards,
Sandeep K Chaudhary.
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2013-06-25 6:00 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz / follow: Atom feed)
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2013-06-22 7:31 Help needed with loading a gcc plugin Sandeep K Chaudhary
2013-06-22 22:02 ` Ian Lance Taylor
2013-06-23 4:11 ` Sandeep K Chaudhary
2013-06-25 6:00 ` Sandeep K Chaudhary
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