[lttng-dev] [error] at line 4295: token "(": syntax error, unexpected LPAREN, expecting SEMICOLON or COMMA

[Mathieu Desnoyers]

----- On Oct 6, 2016, at 4:47 PM, Mathieu Desnoyers mathieu.desnoyers at efficios.com wrote:

> ----- On Oct 6, 2016, at 4:14 PM, Staffan Tjernstrom
> staffan at eternaltraveller.com wrote:
> 
>>> On 2016-10-06 14:14, Staffan Tjernstrom wrote:
>>> Hi Staffan,
>>>
>>> Are you able to provide the metadata file?  Even better, would you be
>>> able to share your tracepoint definition file?
>>>
>>> Simon
>>>
>> Hi Simon,
>> 
>> Here's one of the pid's metadata files, it does look a bit suspicious
>> to my untrained eye. I've also enclosed the three tracepoint
>> definition files that are in play.
>> 
>> One thing to be aware of is that our application suite is in C++, so
>> we have mangled symbols in the definitions.
> 
> See
> 
> TRACEPOINT_EVENT(
>   sapphire,
>   ip_error,
>   TP_ARGS(
>      int, lineno_arg,
>      int, socket_arg,
>      int, errno_arg
>     ),
>   TP_FIELDS(
> ctf_integer( int, source_line, lineno_arg )
>      ctf_integer( int, socket, socket_arg )
>      ctf_integer( int, errno, errno_arg )
>      ctf_string( error_text, strerror( errno_arg ) )
>      )
>   )
> TRACEPOINT_LOGLEVEL( sapphire, ip_error, TRACE_ERR )
> 
> It maps to this in the metadata at line 4295:
> event {
>        name = "sapphire:ip_error3";
>        id = 349;
>        stream_id = 0;
>        loglevel = 13;
>        fields := struct {
>                integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; }
>                _source_line;
>                string _address;
>                integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; } _port;
>                integer { size = 32; align = 8; signed = 1; encoding = none; base = 10; }
>                _(*__errno_location ());
>                string _error_text;
>        };
> };
> 
> I suspect that "error_text" is actually a C++ macro that maps to
> "(*__errno_location ())",
> which is unexpected.

Sorry, I meant that "error" maps to "(*__errno_location ())", in the
line "ctf_integer( int, errno, errno_arg )".

Thanks,

Mathieu

> 
> Thanks,
> 
> Mathieu
> 
>> 
>> 
>> _______________________________________________
>> lttng-dev mailing list
>> lttng-dev at lists.lttng.org
>> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev
> 
> --
> Mathieu Desnoyers
> EfficiOS Inc.
> http://www.efficios.com
> _______________________________________________
> lttng-dev mailing list
> lttng-dev at lists.lttng.org
> https://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev

-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com