Mark Johnston 1c29da0279 Reimplement stack capture of running threads on i386 and amd64. ... After r355784 the td_oncpu field is no longer synchronized by the thread lock, so the stack capture interrupt cannot be delievered precisely. Fix this using a loop which drops the thread lock and restarts if the wrong thread was sampled from the stack capture interrupt handler. Change the implementation to use a regular interrupt instead of an NMI. Now that we drop the thread lock, there is no advantage to the latter. Simplify the KPIs. Remove stack_save_td_running() and add a return value to stack_save_td(). On platforms that do not support stack capture of running threads, stack_save_td() returns EOPNOTSUPP. If the target thread is running in user mode, stack_save_td() returns EBUSY. Reviewed by: kib Reported by: mjg, pho Tested by: pho Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D23355		2020-01-31 15:43:33 +00:00
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conf	Include the PCI stack to the riscv GENERIC kernel.	2020-01-24 17:10:21 +00:00
include	Remove unused fields from struct pcb.	2020-01-30 19:15:27 +00:00
riscv	Reimplement stack capture of running threads on i386 and amd64.	2020-01-31 15:43:33 +00:00
sifive	sifive: Fix incorrect tx/rx ctrl defines	2020-01-07 09:02:14 +00:00