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plugin/tracing: fix extended trace on umapped memory areas

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When a register in the extended trace was dereferenced and the value
was smaller than the memory pool size, but the address was not mapped
an assertion occured and the tracing plugin terminated the
simulator. Now the dereferenced memory address is checked for being
mapped and not being smaller than the memory pool.

Change-Id: I9ac954988ef860969679f9f360814c5e4b66f473
This commit is contained in:
Christian Dietrich
2013-10-28 15:09:35 +01:00
parent 148b09be2e
commit 5171645d9a
3 changed files with 20 additions and 1 deletions
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2
src/plugins/tracing/TracingPlugin.cc
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@ -133,7 +133,7 @@ bool TracingPlugin::run()
Trace_Event_Extended_Registers *er = ext.add_registers();
er->set_id((*it)->getId());
er->set_value(simulator.getCPU(0).getRegisterContent(*it));
if (er->value() <= mm.getPoolSize() - 4) {
if (mm.isMapped(er->value())) {
uint32_t value_deref;
mm.getBytes(er->value(), 4, &value_deref);
er->set_value_deref(value_deref);