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base: Add tracing support to CPU session interface

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This commit is contained in:
Norman Feske
2013-08-09 11:11:03 +02:00
parent f0b5c5eca5
commit a2b15349fd
13 changed files with 177 additions and 1 deletions
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12
base/include/cpu_session/client.h
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@@ -65,6 +65,18 @@ namespace Genode {
void affinity(Thread_capability thread, Affinity::Location location) {
call<Rpc_affinity>(thread, location); }
Dataspace_capability trace_control() {
return call<Rpc_trace_control>(); }
unsigned trace_control_index(Thread_capability thread) {
return call<Rpc_trace_control_index>(thread); }
Dataspace_capability trace_buffer(Thread_capability thread) {
return call<Rpc_trace_buffer>(thread); }
Dataspace_capability trace_policy(Thread_capability thread) {
return call<Rpc_trace_policy>(thread); }
};
}

46
base/include/cpu_session/cpu_session.h
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@@ -222,6 +222,42 @@ namespace Genode {
return (prio*pf_prio_limit)/Cpu_session::PRIORITY_LIMIT;
}
/**
* Request trace control dataspace
*
* The trace-control dataspace is used to propagate tracing
* control information from core to the threads of a CPU session.
*
* The trace-control dataspace is accounted to the CPU session.
*/
virtual Dataspace_capability trace_control() = 0;
/**
* Request index of a trace control block for given thread
*
* The trace control dataspace contains the control blocks for
* all threads of the CPU session. Each thread gets assigned a
* different index by the CPU service.
*/
virtual unsigned trace_control_index(Thread_capability thread) = 0;
/**
* Request trace buffer for the specified thread
*
* The trace buffer is not accounted to the CPU session. It is
* owned by a TRACE session.
*/
virtual Dataspace_capability trace_buffer(Thread_capability thread) = 0;
/**
* Request trace policy
*
* The trace policy buffer is not accounted to the CPU session. It
* is owned by a TRACE session.
*/
virtual Dataspace_capability trace_policy(Thread_capability thread) = 0;
/*********************
** RPC declaration **
*********************/
@@ -247,6 +283,10 @@ namespace Genode {
GENODE_RPC(Rpc_single_step, void, single_step, Thread_capability, bool);
GENODE_RPC(Rpc_affinity_space, Affinity::Space, affinity_space);
GENODE_RPC(Rpc_affinity, void, affinity, Thread_capability, Affinity::Location);
GENODE_RPC(Rpc_trace_control, Dataspace_capability, trace_control);
GENODE_RPC(Rpc_trace_control_index, unsigned, trace_control_index, Thread_capability);
GENODE_RPC(Rpc_trace_buffer, Dataspace_capability, trace_buffer, Thread_capability);
GENODE_RPC(Rpc_trace_policy, Dataspace_capability, trace_policy, Thread_capability);
/*
* 'GENODE_RPC_INTERFACE' declaration done manually
@@ -270,8 +310,12 @@ namespace Genode {
Meta::Type_tuple<Rpc_single_step,
Meta::Type_tuple<Rpc_affinity_space,
Meta::Type_tuple<Rpc_affinity,
Meta::Type_tuple<Rpc_trace_control,
Meta::Type_tuple<Rpc_trace_control_index,
Meta::Type_tuple<Rpc_trace_buffer,
Meta::Type_tuple<Rpc_trace_policy,
Meta::Empty>
> > > > > > > > > > > > > Rpc_functions;
> > > > > > > > > > > > > > > > > Rpc_functions;
};
}

28
base/src/core/cpu_session_component.cc
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@@ -213,6 +213,34 @@ void Cpu_session_component::affinity(Thread_capability thread_cap,
}
Dataspace_capability Cpu_session_component::trace_control()
{
/* not implemented */
return Dataspace_capability();
}
unsigned Cpu_session_component::trace_control_index(Thread_capability thread)
{
/* not implemented */
return 0;
}
Dataspace_capability Cpu_session_component::trace_buffer(Thread_capability thread)
{
/* not implemented */
return Dataspace_capability();
}
Dataspace_capability Cpu_session_component::trace_policy(Thread_capability thread)
{
/* not implemented */
return Dataspace_capability();
}
Cpu_session_component::Cpu_session_component(Rpc_entrypoint *thread_ep,
Pager_entrypoint *pager_ep,
Allocator *md_alloc,

4
base/src/core/include/cpu_session_component.h
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@@ -154,6 +154,10 @@ namespace Genode {
void exception_handler(Thread_capability, Signal_context_capability);
Affinity::Space affinity_space() const;
void affinity(Thread_capability, Affinity::Location);
Dataspace_capability trace_control();
unsigned trace_control_index(Thread_capability);
Dataspace_capability trace_buffer(Thread_capability);
Dataspace_capability trace_policy(Thread_capability);
};
}