[cfe-dev] clang plugin

[Naoya Maruyama]

Thanks Christof. Changing ExportMap.map as you told does solve my problem.

I personally like the plugin mechanism. It's much simpler for AST
analysis  and also seems much faster to compile  a plugin library than
to compile and link clang executables like clang-interpreter.

Thanks,
Naoya

On Mon, Apr 5, 2010 at 12:49 PM, Daniel Dunbar <daniel at zuster.org> wrote:
> On Sat, Apr 3, 2010 at 5:54 AM, Christof Meerwald <cmeerw at cmeerw.org> wrote:
>> On Fri, 2 Apr 2010 11:05:40 +0900, Naoya Maruyama wrote:
>>> I'm developing a c-program tool with clang, and trying the
>>> PrintFunctionNames plugin. However, running a command loading plugin
>>> libraries doesn't seem to find plugins:
>>>
>>>  $ clang -cc1 -load path/to/libPrintFunctionNames.so -plugin help
>>> clang -cc1 plugins:
>>
>> I have come across the same problem recently. I think it's caused by the
>> plugin shared library using its own instance of the plugin registry instead
>> of the one from the clang binary. The way I fixed (or worked around) it on
>> my system was by changing autoconf/ExportMap.map (and rebuilding clang) as
>> follows:
>>
>> {
>>        global: main;
>>                __progname;
>>                environ;
>>                _ZN4llvm8RegistryIN5clang14FrontendActionENS_14RegistryTraitsIS2_EEE4HeadE;
>>
>>        local: *;
>> };
>>
>
> Yes, unfortunately the plugin mechanism is currently limited &
> confusing because of how we handle symbol exports. I'm tempted to just
> remove the current example and recommend people follow the
> clang-interpreter example instead, until someone takes the plugin
> mechanism and really makes it robust & usable. Any objections?
>
>  - Daniel
>
>> Christof
>>
>> --
>>
>> http://cmeerw.org                              sip:cmeerw at cmeerw.org
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