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path: root/src/arch/generic/linux/threadinfo.hh
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2017-06-22arm,sim: fix context switch stats dumps for ARM64/LinuxPaul Rosenfeld
32bit and 64bit Linux have different arguments passed to the __switch_to() function that gem5 hooks into in order to collect context switch statistics. 64bit Linux provides the task_struct pointer to the next task that will be switched to, which means we don't have to look up the task_struct from thread_info as we do in 32bit ARM Linux. This patch adds a second set of accessors to ThreadInfo to extract details such as the pid, tgid, task name, etc., directly from a task_struct. The existing accessors maintain their existing behavior by first looking up the task_struct and then calling these new accessors. A 64-bit variant of the DumpStatsPCEvent class is added that uses these new accessors to get the task details for the context switch dumps directly from the task_struct passed to __switch_to(). Change-Id: I63c4b3e1ad64446751a91f6340901d5180d7382d Reviewed-on: https://gem5-review.googlesource.com/2640 Reviewed-by: Curtis Dunham <curtis.dunham@arm.com> Reviewed-by: Jason Lowe-Power <jason@lowepower.com> Reviewed-by: Pau Cabre <pau.cabre@metempsy.com> Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com> Maintainer: Andreas Sandberg <andreas.sandberg@arm.com>
2012-11-02ISA: generic Linux thread info supportDam Sunwoo
This patch takes the Linux thread info support scattered across different ISA implementations (currently in ARM, ALPHA, and MIPS), and unifies them into a single file. Adds a few more helper functions to read out TGID, mm, etc. ISA-specific information (e.g., ALPHA PCBB register) is now moved to the corresponding isa_traits.hh files.