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path: root/src/arch/x86/process.hh
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2010-08-17sim: revamp unserialization procedureSteve Reinhardt
Replace direct call to unserialize() on each SimObject with a pair of calls for better control over initialization in both ckpt and non-ckpt cases. If restoring from a checkpoint, loadState(ckpt) is called on each SimObject. The default implementation simply calls unserialize() if there is a corresponding checkpoint section, so we get backward compatibility for existing objects. However, objects can override loadState() to get other behaviors, e.g., doing other programmed initializations after unserialize(), or complaining if no checkpoint section is found. (Note that the default warning for a missing checkpoint section is now gone.) If not restoring from a checkpoint, we call the new initState() method on each SimObject instead. This provides a hook for state initializations that are only required when *not* restoring from a checkpoint. Given this new framework, do some cleanup of LiveProcess subclasses and X86System, which were (in some cases) emulating initState() behavior in startup via a local flag or (in other cases) erroneously doing initializations in startup() that clobbered state loaded earlier by unserialize().
2010-05-23copyright: Change HP copyright on x86 code to be more friendlyNathan Binkert
2010-05-03X86: Update the base aux vector X86 processes install.Gabe Black
2009-11-04X86: Enable x86_64 vsyscall supportVince Weaver
64-bit vsyscall is different than 32-bit. There are only two syscalls, time and gettimeofday. On a real system, there is complicated code that implements these without entering the kernel. That would be complicated to implement in m5. Instead we just place code that calls the regular syscalls (this is how tools such as valgrind handle this case). This is needed for the perlbmk spec2k benchmark.
2009-10-30Syscalls: Make system calls access arguments like a stack, not an array.Gabe Black
When accessing arguments for a syscall, the position of an argument depends on the policies of the ISA, how much space preceding arguments took up, and the "alignment" of the index for this particular argument into the number of possible storate locations. This change adjusts getSyscallArg to take its index parameter by reference instead of value and to adjust it to point to the possible location of the next argument on the stack, basically just after the current one. This way, the rules for the new argument can be applied locally without knowing about other arguments since those have already been taken into account implicitly. All system calls have also been changed to reflect the new interface. In a number of cases this made the implementation clearer since it encourages arguments to be collected in one place in order and then used as necessary later, as opposed to scattering them throughout the function or using them in place in long expressions. It also discourages using getSyscallArg over and over to retrieve the same value when a temporary would do the job.
2009-02-27X86: Add a vsyscall page for 32 bit processes to use.Gabe Black
2009-02-27X86: Set up a space for a GDT in SE so we can set up TLS or LDT segments.Gabe Black
2009-02-27Processes: Make getting and setting system call arguments part of a process ↵Gabe Black
object.
2009-02-27X86: Distinguish the width of values on the stack between 32 and 64 bit ↵Gabe Black
processes.
2008-12-04This patch pulls out the auxiliary vector struct from individual ISALisa Hsu
LiveProcesses to the base LiveProcess definition so anyone can use them.
2007-10-16Make the process objects use the Params structs in their constructors, and ↵Gabe Black
use a limit to check if access are on the stack. --HG-- extra : convert_revision : af40a7acf424c4c4f62d0d76db1001a714ae0474
2007-03-06Get X86 to load an elf and start a process for it.Gabe Black
src/arch/x86/SConscript: Add in process source files. src/arch/x86/isa_traits.hh: Replace magic constant numbers with the x86 register names. src/arch/x86/miscregfile.cc: Make clear the miscreg file succeed. There aren't any misc regs, so clearing them is very easy. src/arch/x86/process.hh: An X86 process class. src/base/loader/elf_object.cc: Add in code to recognize x86 as an architecture. src/base/traceflags.py: Add an x86 traceflag src/sim/process.cc: Add in code to create an x86 process. src/arch/x86/intregs.hh: A file which declares names for the integer register indices. src/arch/x86/linux/linux.cc: src/arch/x86/linux/linux.hh: A very simple translation of SPARC's linux.cc and linux.hh. It's probably not correct for x86, but it might not be correct for SPARC either. src/arch/x86/linux/process.cc: src/arch/x86/linux/process.hh: An x86 linux process. The syscall table is split out into it's own file. src/arch/x86/linux/syscalls.cc: The x86 Linux syscall table and the uname function. src/arch/x86/process.cc: The x86 process base class. tests/test-progs/hello/bin/x86/linux/hello: An x86 hello world test binary. --HG-- extra : convert_revision : f22919e010c07aeaf5757dca054d9877a537fd08
2007-03-03Add build hooks for x86.Gabe Black
--HG-- extra : convert_revision : 438eb74f14e6ea60bab5012110f3946c9213786e