Gabe Black 3f722b991f Syscalls: Make system calls access arguments like a stack, not an array. ... 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.		2009-10-30 00:44:55 -07:00
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linux.cc	arm: add ARM support to M5	2009-04-05 18:53:15 -07:00
linux.hh	syscall: Addition of an ioctl command code for Power.	2009-10-24 10:53:59 -07:00
process.cc	Syscalls: Make system calls access arguments like a stack, not an array.	2009-10-30 00:44:55 -07:00
process.hh	Syscalls: Make system calls access arguments like a stack, not an array.	2009-10-30 00:44:55 -07:00