[lttng-dev] lttng-modules-2.7.0 : compilation error

[Mathieu Desnoyers]

----- On Dec 3, 2015, at 4:20 AM, Zvi Vered veredz72 at gmail.com wrote:

> Hello,
> 
> I'm tried to compile lttng-modules:
> 
> more /proc/version:
> Linux version 2.6.32-279.el6.x86_64
> (mockbuild at c6b9.bsys.dev.centos.org) (gcc version 4.4.6 20120305 (Red
> Hat 4.4.6-4) (GCC) )
> #1 SMP Fri Jun 22 12:19:21 UTC 2012

Hi,

Kernel 2.6.32 is not supported by lttng-modules. You will need to
upgrade your kernel. See README.md in lttng-modules.

Thanks,

Mathieu

> 
> yum install kernel-headers
> cd lttng-modules-2.7.0
> make
> 
> and got:
> 
> LTTNG_KERNELDIR=/lib/modules/2.6.32-279.el6.x86_64/build make -C
> /lib/modules/2.6.32-279.el6.x86_64/build
> M=/home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0 modules
> make[1]: Entering directory `/usr/src/kernels/2.6.32-279.el6.x86_64'
>  CC [M]
>  /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client-discard.o
> In file included from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/frontend_api.h:1,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/api.h:35,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/api.h:1,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client.h:177,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client-discard.c:29:
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:1:
> error: pasting "per_cpu__" and "*" does not give a valid preprocessing
> token
> In file included from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/frontend_api.h:1,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/api.h:35,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/api.h:1,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client.h:177,
>                 from
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client-discard.c:29:
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:
> In function ‘lib_ring_buffer_put_cpu’:
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> error: ‘per_cpu__’ undeclared (first use in this function)
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> error: (Each undeclared identifier is reported only once
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> error: for each function it appears in.)
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> error: ‘lib_ring_buffer_nesting’ undeclared (first use in this
> function)
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> warning: type defaults to ‘int’ in declaration of ‘type name’
> /home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/wrapper/ringbuffer/../../lib/ringbuffer/../../wrapper/ringbuffer/../../lib/ringbuffer/frontend_api.h:77:
> error: invalid type argument of ‘unary *’ (have ‘int’)
> make[2]: ***
> [/home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0/lttng-ring-buffer-client-discard.o]
> Error 1
> make[1]: ***
> [_module_/home/zvivered/Downloads/lttng-modules/lttng-modules-2.7.0]
> Error 2
> make[1]: Leaving directory `/usr/src/kernels/2.6.32-279.el6.x86_64'
> 
> I did not add yet the required components to the kernel.
> 
> Can you help ?
> 
> Best regards,
> Z.V
> 
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> lttng-dev at lists.lttng.org
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-- 
Mathieu Desnoyers
EfficiOS Inc.
http://www.efficios.com