Author: kib
Date: Sun Oct 21 12:17:22 2012
New Revision: 241811
URL: http://svn.freebsd.org/changeset/base/241811
Log:
MFC r241550:
MFamd64: add machdep.uprintf_signal.
Modified:
stable/9/sys/i386/i386/trap.c
Directory Properties:
stable/9/sys/ (props changed)
Modified: stable/9/sys/i386/i386/trap.c
==============================================================================
--- stable/9/sys/i386/i386/trap.c Sun Oct 21 12:15:58 2012
(r241810)
+++ stable/9/sys/i386/i386/trap.c Sun Oct 21 12:17:22 2012
(r241811)
@@ -195,6 +195,10 @@ TUNABLE_INT("machdep.panic_on_nmi", &pan
static int prot_fault_translation = 0;
SYSCTL_INT(_machdep, OID_AUTO, prot_fault_translation, CTLFLAG_RW,
&prot_fault_translation, 0, "Select signal to deliver on protection
fault");
+static int uprintf_signal;
+SYSCTL_INT(_machdep, OID_AUTO, uprintf_signal, CTLFLAG_RW,
+ &uprintf_signal, 0,
+ "Print debugging information on trap signal to ctty");
/*
* Exception, fault, and trap interface to the FreeBSD kernel.
@@ -760,6 +764,21 @@ trap(struct trapframe *frame)
ksi.ksi_code = ucode;
ksi.ksi_addr = (void *)addr;
ksi.ksi_trapno = type;
+ if (uprintf_signal) {
+ uprintf("pid %d comm %s: signal %d err %x code %d type %d "
+ "addr 0x%x eip 0x%08x "
+ "<%02x %02x %02x %02x %02x %02x %02x %02x>\n",
+ p->p_pid, p->p_comm, i, frame->tf_err, ucode, type, addr,
+ frame->tf_eip,
+ fubyte((void *)(frame->tf_eip + 0)),
+ fubyte((void *)(frame->tf_eip + 1)),
+ fubyte((void *)(frame->tf_eip + 2)),
+ fubyte((void *)(frame->tf_eip + 3)),
+ fubyte((void *)(frame->tf_eip + 4)),
+ fubyte((void *)(frame->tf_eip + 5)),
+ fubyte((void *)(frame->tf_eip + 6)),
+ fubyte((void *)(frame->tf_eip + 7)));
+ }
trapsignal(td, &ksi);
#ifdef DEBUG
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