84a03b55ff
This change limits fault injection to general-purpose registers, instead of relying on the LLVM/Fail* bridge to only recognize the status register (EFLAGS on x86) and general-purpose registers. Since this bridge just learned to translate x86's control and segment registers, and these registers need special handling for fault injection (def/use pruning does not work here), only import register accesses from the RT_GP subset. Status register and instruction pointer injection remain functional, and import-trace now should work architecture independently. Change-Id: Id8ad2f0a9dab1861bf16ea9443c3bdfe7213d3fa
50 lines
1.3 KiB
C++
50 lines
1.3 KiB
C++
#ifndef __REGISTER_IMPORTER_H__
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#define __REGISTER_IMPORTER_H__
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#include <set>
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#include "util/CommandLine.hpp"
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#include "Importer.hpp"
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#include "util/llvmdisassembler/LLVMDisassembler.hpp"
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class RegisterImporter : public Importer {
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llvm::OwningPtr<llvm::object::Binary> binary;
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llvm::OwningPtr<fail::LLVMDisassembler> disas;
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bool addRegisterTrace(fail::simtime_t curtime, instruction_count_t instr,
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Trace_Event &ev,
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const fail::LLVMtoFailTranslator::reginfo_t &info,
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char access_type);
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fail::CommandLine::option_handle NO_GP, FLAGS, IP, NO_SPLIT;
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bool do_gp, do_flags, do_ip, do_split_registers;
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std::set<unsigned> m_register_ids;
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unsigned m_ip_register_id;
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public:
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RegisterImporter() : Importer(), do_gp(true), do_flags(false), do_ip(false),
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do_split_registers(true) {}
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/**
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* Callback function that can be used to add command line options
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* to the cmd interface
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*/
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virtual bool cb_commandline_init();
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protected:
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virtual bool handle_ip_event(fail::simtime_t curtime, instruction_count_t instr,
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Trace_Event &ev);
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virtual bool handle_mem_event(fail::simtime_t curtime, instruction_count_t instr,
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Trace_Event &ev) {
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/* ignore on purpose */
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return true;
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}
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virtual void open_unused_ec_intervals() {
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/* empty, Memory Map has a different meaning in this importer */
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}
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};
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#endif
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