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2003-12-11Stats & serialization tweaks & cleanup. Unserializing fromSteve Reinhardt
a checkpoint now gives identical results to running from scratch and doing at switchover at the same cycle! - CPUs start at cycle 0 again, not cycle 1. - curTick is now serialized & unserialized. - Stats get reset in main (before event loop). Since this is done after curTick is unserialized, simTicks gets set correctly for running from a checkpoint. - Simplify serialization to happen in a single pass. - s/Serializeable/Serializable/ arch/alpha/isa_traits.hh: dev/etherlink.hh: sim/eventq.cc: sim/eventq.hh: s/Serializeable/Serializable/ kern/tru64/tru64_system.cc: sim/process.cc: Make initial CPU activation on cycle 0 again (not 1). sim/main.cc: Reset stats before getting started. Make error message on falling out of event loop more meaningful. sim/serialize.cc: sim/serialize.hh: Get rid of now-useless initial pass; serialization is done in a single pass now. Serialize & unserialize curTick. Wrap curTick and mainEventQueue in a "globals" Serializable object. s/Serializeable/Serializable/ sim/sim_object.cc: Add static function to serialize all SimObjects. sim/sim_object.hh: Add static function to serialize all SimObjects. s/Serializeable/Serializable/ --HG-- extra : convert_revision : 9dcc411d0009b54b8eb61c3a509680b81b9f6f68
2003-12-10Factor ExecContext::setStatus(), BaseCPU::execCtxStatusChange(),Steve Reinhardt
and SimpleCPU::setStatus() into separate functions. For example, setStatus(Active) is now activate(). --HG-- extra : convert_revision : 4392e07caf6c918db0b535f613175109681686fe
2003-12-01Restructuring of LiveProcess etc. to support multiple emulated OS syscallSteve Reinhardt
interfaces, and specific support for Alpha Linux. Split syscall emulation functions into several groups, based on whether they depend on the specific OS and/or architecture (and all combinations of above), including the use of template functions to support syscalls with slightly different constants or interface structs. arch/alpha/alpha_tru64_process.cc: Incorporate full Tru64 object definition here, including structure and constant definitions. This way we can wrap all of the functions inside the object, and not worry about namespace conflicts because no one outside this file will ever see it. base/loader/aout_object.cc: base/loader/aout_object.hh: base/loader/ecoff_object.cc: base/loader/ecoff_object.hh: base/loader/elf_object.cc: base/loader/elf_object.hh: base/loader/object_file.cc: base/loader/object_file.hh: Add enums to ObjectFile to indicate the object's architecture and operating system. cpu/exec_context.cc: prog.hh is now process.hh cpu/exec_context.hh: prog.hh is now process.hh move architecture-specific syscall arg accessors into ExecContext cpu/simple_cpu/simple_cpu.cc: No need to include prog.hh (which has been renamed) sim/process.cc: sim/process.hh: LiveProcess is now effectively an abstract base class. New LiveProcess::create() function takes an object file and dynamically picks the appropriate subclass of LiveProcess to handle the syscall interface that file expects (currently Tru64 or Linux). --HG-- rename : arch/alpha/fake_syscall.cc => arch/alpha/alpha_tru64_process.cc rename : sim/prog.cc => sim/process.cc rename : sim/prog.hh => sim/process.hh extra : convert_revision : 4a03ca7d94a34177cb672931f8aae83a6bad179a