mohamad.ge...@gmail.com writes:
> These patches fix the UST backend which got broken by LTTng 2.x.
>
> An interesting new feature in LTTng 2.x is that tracepoints now need to belong
> to a provider. A provider is a way to group tracepoints in a logical way, for
> instance tracepoints that belong to a specific file or subsystem. This would
> then allow users to enable all tracepoints of a specific provider at once.
>
> In these patches, only one provider is defined, which is called "ust" (and
> tracepoints are defined in generated-ust-provider.h). It would be interesting
> to
> take advantage of this feature in the future, separating tracepoints into
> multiple providers. Of course, this would require more modifications as well
> as
> a way to specify to which provider each tracepoint belongs in file
> trace-events.
>
I'm getting loads of compile failures like:
./trace/generated-tracers.h: In function ‘trace_esp_dma_enable’:
./trace/generated-tracers.h:3355:1: error: expected expression before ‘)’ token
./trace/generated-tracers.h:3355:1: error: expected expression before ‘)’ token
./trace/generated-tracers.h:3355:1: error: expected expression before ‘)’ token
./trace/generated-tracers.h:3355:1: error: implicit declaration of function
‘__tracepoint_cb_ust___esp_dma_enable’ [-Werror=implicit-function-declaration]
./trace/generated-tracers.h:3355:1: error: nested extern declaration of
‘__tracepoint_cb_ust___esp_dma_enable’ [-Werror=nested-externs]
The code looks like:
static inline void trace_esp_dma_enable(void)
{
tracepoint(ust, esp_dma_enable, );
}
So I assume it's the included stuff that's falling over.
This is on Ubuntu 12.04 LTS with:
11:03 ajb@sloy/x86_64 [qemu.git] >dpkg -l | grep tng
ii liblttng-ust-dev 2.0.2-0ubuntu1
LTTng 2.0 Userspace Tracer (development files)
ii liblttng-ust0 2.0.2-0ubuntu1
LTTng 2.0 Userspace Tracer (libraries)
--
Alex Bennée
