Hello, Greg
So I create a prof-decls.h and put these two lines in it:
int ProfilerStart(const char* fname);
void ProfilerStop();
which I get from the gperftools/profiler.h
chpl -g myCode.chpl prof-decls.h -I../include/ -o myCode -L../lib -ltest
it reports less errors but still this one:
In file included from /chpl__header.h:5:0,
from /_main.c:1:
./prof-decls.h:2:1: error: function declaration isn’t a
prototype [-Werror=strict- prototypes]
why the ProfilerStart declaration isn't the function prototype ?
Thanks
On Tue, Oct 20, 2015 at 5:07 PM, Greg Titus <[email protected]> wrote:
> Hello --
>
> I believe you can solve this problem by putting C-style declarations for
> ProfilerStart() and ProfilerStop() in a .h file (prof-decls.h, say) and
> then adding that .h file to the chpl command line:
>
> chpl -g myCode.chpl prof-decls.h -I../include/ -o myCode -L../lib -ltest
>
> (Sorry I didn't yet respond to your earlier message. I needed time to
> dig into the cause of the problem, but had not found that time yet.)
>
> greg
>
>
>
> On Tue, 20 Oct 2015, Hui Zhang wrote:
>
> Hello,
>>
>> I'm trying to use gperftools to profile the Chapel code, but simply link
>> the profiler library doesn't produce the profile file, so I need to
>> explicitly call two external C functions within my Chapel code, here's
>> what I did:
>>
>> 1. in my chapel module:
>> extern proc ProfilerStart(name: c_string);
>> **it suggested me to use c_string instead of string
>> exetern proc ProfilerStop();
>> then in proc main, I called this two functions
>> 2. recompile my chapel program:
>> chpl -g myCode.chpl -I../include/ -o myCode -L../lib -ltest
>>
>> But I got this error :
>> /_main.c:30:0:
>> /Hui.c: In function ‘chpl_user_main’:
>> /Hui.c:160:1: error: implicit declaration of function ‘ProfilerStart’
>> [-Werror=implicit-function-declaration]
>> /Hui.c:160:1: error: nested extern declaration of ‘ProfilerStart’
>> [-Werror=nested-externs]
>> /Hui.c:163:1: error: implicit declaration of function ‘ProfilerStop’
>> [-Werror=implicit-function-declaration]
>> /Hui.c:163:1: error: nested extern declaration of ‘ProfilerStop’
>> [-Werror=nested-externs]
>> cc1: all warnings being treated as errors
>> make: *** [/tmp/chpl-hzhang86-15966.deleteme/experiment.work.funh.tmp]
>> Error 1
>> error: compiling generated source [mysystem.cpp:43]
>>
>> Should I just ignore these warnings ? but how to disable this warning as
>> error option?
>> Or am I doing it wrong ?
>>
>> Thanks
>>
>> --
>> Best regards
>>
>>
>> Hui Zhang
>>
>>
--
Best regards
Hui Zhang
------------------------------------------------------------------------------
_______________________________________________
Chapel-developers mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/chapel-developers
