kern, arm: Dump dmesg on kernel panic/oops
Add helper functions to dump the guest kernel's dmesg buffer to a text
file in m5out. This functionality is split into two parts. First, a
dmesg dump function that can be used in other places:
void Linux::dumpDmesg(ThreadContext *, std::ostream &)
This function is used to implement two PCEvents: DmesgDumpEvent and
KernelPanic event. The only difference between the two is that the
latter produces a gem5 panic instead of a warning in addition to
dumping the kernel log.
Change-Id: I6d2af1d666ace57124089648ea906f6c787ac63c
Signed-off-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-by: Nikos Nikoleris <nikos.nikoleris@arm.com>
Reviewed-by: Gabor Dozsa <gabor.dozsa@arm.com>
diff --git a/src/kern/SConscript b/src/kern/SConscript
index 7bcf542..305cf63 100644
--- a/src/kern/SConscript
+++ b/src/kern/SConscript
@@ -36,6 +36,7 @@
Source('kernel_stats.cc')
Source('linux/events.cc')
Source('linux/linux.cc')
+Source('linux/helpers.cc')
Source('linux/printk.cc')
Source('freebsd/events.cc')
Source('operatingsystem.cc')
