Author: jhibbits
Date: Sun Apr 8 16:55:28 2018
New Revision: 332289
URL: https://svnweb.freebsd.org/changeset/base/332289
Log:
powerpc64: Print current MSR on printtrap()
Summary:
Print current MSR on printtrap(). Currently, printtrap just prints srr1, which
contains part of the MSR prior to the exception. I find useful to dump the
current value of the MSR, since it changes when there is an interruption.
With this patch, this is the new printtrap model:
handled user trap:
exception = 0x700 (program)
srr0 = 0x100008a0 (0x100008a0)
srr1 = 0x800000000002f032
current msr = 0x8000000000009032
lr = 0x1000089c (0x1000089c)
curthread = 0x7a50000
pid = 714, comm = ttrap2
Submitted by: Breno Leitao
Reviewed by: nwhitehorn
Differential Revision: https://reviews.freebsd.org/D14600
Modified:
head/sys/powerpc/powerpc/trap.c
Modified: head/sys/powerpc/powerpc/trap.c
==============================================================================
--- head/sys/powerpc/powerpc/trap.c Sun Apr 8 16:54:07 2018
(r332288)
+++ head/sys/powerpc/powerpc/trap.c Sun Apr 8 16:55:28 2018
(r332289)
@@ -507,6 +507,7 @@ printtrap(u_int vector, struct trapframe *frame, int i
printf(" srr0 = 0x%" PRIxPTR " (0x%" PRIxPTR ")\n",
frame->srr0, frame->srr0 - (register_t)(__startkernel - KERNBASE));
printf(" srr1 = 0x%lx\n", (u_long)frame->srr1);
+ printf(" current msr = 0x%" PRIxPTR "\n", mfmsr());
printf(" lr = 0x%" PRIxPTR " (0x%" PRIxPTR ")\n",
frame->lr, frame->lr - (register_t)(__startkernel - KERNBASE));
printf(" curthread = %p\n", curthread);
_______________________________________________
svn-src-head@freebsd.org mailing list
https://lists.freebsd.org/mailman/listinfo/svn-src-head
To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
