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Add simple function-tracing support. Prints a message

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every time the committed PC changes from one symbol scope
to another.
Set function_trace=y on target CPU to enable.
To defer start, use function_trace_start=<tick>
(in addition to setting function_trace=y).

cpu/base_cpu.cc:
cpu/base_cpu.hh:
    Add simple function-tracing support.
cpu/simple_cpu/simple_cpu.cc:
    Add function_trace, function_trace_start params
    Call traceFunctions() on instruction completion
cpu/simple_cpu/simple_cpu.hh:
    Add function_trace, function_trace_start params

--HG--
extra : convert_revision : 8a7f84028ccbaee585253629007f32fc8eae35e1
This commit is contained in:
Steve Reinhardt
2004-11-16 17:20:38 -05:00
parent 34b2014463
commit c9b0204e28
4 changed files with 110 additions and 16 deletions
Download Patch File Download Diff File Expand all files Collapse all files

25
cpu/simple_cpu/simple_cpu.cc
View File

@@ -123,11 +123,12 @@ SimpleCPU::SimpleCPU(const string &_name,
FunctionalMemory *mem,
MemInterface *icache_interface,
MemInterface *dcache_interface,
bool _def_reg, Tick freq)
bool _def_reg, Tick freq,
bool _function_trace, Tick _function_trace_start)
: BaseCPU(_name, /* number_of_threads */ 1, _def_reg,
max_insts_any_thread, max_insts_all_threads,
max_loads_any_thread, max_loads_all_threads,
_system, freq),
_system, freq, _function_trace, _function_trace_start),
#else
SimpleCPU::SimpleCPU(const string &_name, Process *_process,
Counter max_insts_any_thread,
@@ -136,10 +137,12 @@ SimpleCPU::SimpleCPU(const string &_name, Process *_process,
Counter max_loads_all_threads,
MemInterface *icache_interface,
MemInterface *dcache_interface,
bool _def_reg)
bool _def_reg,
bool _function_trace, Tick _function_trace_start)
: BaseCPU(_name, /* number_of_threads */ 1, _def_reg,
max_insts_any_thread, max_insts_all_threads,
max_loads_any_thread, max_loads_all_threads),
max_loads_any_thread, max_loads_all_threads,
_function_trace, _function_trace_start),
#endif
tickEvent(this), xc(NULL), cacheCompletionEvent(this)
{
@@ -778,6 +781,8 @@ SimpleCPU::tick()
if (traceData)
traceData->finalize();
traceFunctions(xc->regs.pc);
} // if (fault == No_Fault)
if (fault != No_Fault) {
@@ -836,6 +841,8 @@ BEGIN_DECLARE_SIM_OBJECT_PARAMS(SimpleCPU)
Param<bool> defer_registration;
Param<int> multiplier;
Param<bool> function_trace;
Param<Tick> function_trace_start;
END_DECLARE_SIM_OBJECT_PARAMS(SimpleCPU)
@@ -869,7 +876,9 @@ BEGIN_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
INIT_PARAM_DFLT(defer_registration, "defer registration with system "
"(for sampling)", false),
INIT_PARAM_DFLT(multiplier, "clock multiplier", 1)
INIT_PARAM_DFLT(multiplier, "clock multiplier", 1),
INIT_PARAM_DFLT(function_trace, "Enable function trace", false),
INIT_PARAM_DFLT(function_trace_start, "Cycle to start function trace", 0)
END_INIT_SIM_OBJECT_PARAMS(SimpleCPU)
@@ -888,7 +897,8 @@ CREATE_SIM_OBJECT(SimpleCPU)
(icache) ? icache->getInterface() : NULL,
(dcache) ? dcache->getInterface() : NULL,
defer_registration,
ticksPerSecond * mult);
ticksPerSecond * mult,
function_trace, function_trace_start);
#else
cpu = new SimpleCPU(getInstanceName(), workload,
@@ -896,7 +906,8 @@ CREATE_SIM_OBJECT(SimpleCPU)
max_loads_any_thread, max_loads_all_threads,
(icache) ? icache->getInterface() : NULL,
(dcache) ? dcache->getInterface() : NULL,
defer_registration);
defer_registration,
function_trace, function_trace_start);
#endif // FULL_SYSTEM

6
cpu/simple_cpu/simple_cpu.hh
View File

@@ -142,7 +142,8 @@ class SimpleCPU : public BaseCPU
Counter max_loads_any_thread, Counter max_loads_all_threads,
AlphaITB *itb, AlphaDTB *dtb, FunctionalMemory *mem,
MemInterface *icache_interface, MemInterface *dcache_interface,
bool _def_reg, Tick freq);
bool _def_reg, Tick freq,
bool _function_trace, Tick _function_trace_start);
#else
@@ -152,7 +153,8 @@ class SimpleCPU : public BaseCPU
Counter max_loads_any_thread,
Counter max_loads_all_threads,
MemInterface *icache_interface, MemInterface *dcache_interface,
bool _def_reg);
bool _def_reg,
bool _function_trace, Tick _function_trace_start);
#endif