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sal: CPU now knows extended trace registers

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The extended trace register list is needed in multiple locations; the CPU
class is the logical module to contain this information.

Increased number of x86 registers to be traced; we can remove those
that prove unusable for fault-space pruning later on.

Change-Id: Ic46ecdbc55167a6d92872c190317fc0d1a3ad92d
This commit is contained in:
Horst Schirmeier
2013-06-25 17:16:54 +02:00
parent 52723a874e
commit 4e3c9e3758
4 changed files with 22 additions and 13 deletions
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4
src/core/sal/Register.hpp
View File

@ -23,7 +23,9 @@ enum RegisterType {
RT_GP, //!< general purpose
RT_FP, //!< floating point register
RT_IP, //!< program counter / instruction pointer
RT_ST //!< status register
RT_ST, //!< status register
RT_TRACE //!< registers to be recorded in an extended trace
};
/**

7
src/core/sal/arm/ArmArchitecture.cc
View File

@ -23,6 +23,13 @@ ArmArchitecture::ArmArchitecture()
Register *reg = new Register(RI_IP, 32);
reg->setName("IP");
m_addRegister(reg, RT_IP);
// Registers used for extended tracing:
size_t ids[] = {RI_R0, RI_R1, RI_R2, RI_R3, RI_R4, RI_R5, RI_R6, RI_R7,
RI_R8, RI_R9, RI_R10, RI_R11, RI_R12, RI_R13, RI_R14};
for (size_t i = 0; i < sizeof(ids)/sizeof(*ids); ++i) {
m_addRegister(getRegister(ids[i]), RT_TRACE);
}
}
ArmArchitecture::~ArmArchitecture()

6
src/core/sal/x86/X86Architecture.cc
View File

@ -41,6 +41,12 @@ X86Architecture::X86Architecture()
Register* pFlagReg = new Register(RID_FLAGS, 32);
pFlagReg->setName("EFLAGS");
m_addRegister(pFlagReg, RT_ST);
// Registers used for extended tracing:
size_t ids[] = {RID_CAX, RID_CBX, RID_CCX, RID_CDX, RID_CSI, RID_CDI, RID_CSP, RID_CBP, RID_FLAGS};
for (size_t i = 0; i < sizeof(ids)/sizeof(*ids); ++i) {
m_addRegister(getRegister(ids[i]), RT_TRACE);
}
}
X86Architecture::~X86Architecture()

18
src/plugins/tracing/TracingPlugin.cc
View File

@ -28,15 +28,8 @@ bool TracingPlugin::run()
ps = new ProtoOStream(m_protoStreamFile);
}
#ifdef BUILD_X86
size_t ids[] = {RID_CSP, RID_CBP, RID_FLAGS};
#else
size_t ids[] = {};
#endif
Register *regs[sizeof(ids)/sizeof(*ids)];
for (unsigned i = 0; i < sizeof(ids)/sizeof(*ids); ++i)
regs[i] = simulator.getCPU(0).getRegister(ids[i]);
UniformRegisterSet *extended_trace_regs =
simulator.getCPU(0).getRegisterSetOfType(RT_TRACE);
// the first event gets an absolute time stamp, all others a delta to their
// predecessor
@ -107,10 +100,11 @@ bool TracingPlugin::run()
mm.getBytes(addr, width, &data);
ext.set_data(data);
for (unsigned i = 0; i < sizeof(ids)/sizeof(*ids); ++i) {
for (UniformRegisterSet::iterator it = extended_trace_regs->begin();
it != extended_trace_regs->end(); ++it) {
Trace_Event_Extended_Registers *er = ext.add_registers();
er->set_id(ids[i]);
er->set_value(simulator.getCPU(0).getRegisterContent(regs[i]));
er->set_id((*it)->getId());
er->set_value(simulator.getCPU(0).getRegisterContent(*it));
if (er->value() <= mm.getPoolSize() - 4) {
uint32_t value_deref;
mm.getBytes(er->value(), 4, &value_deref);