Author: nyan
Date: Sat Nov 10 13:25:46 2012
New Revision: 242867
URL: http://svnweb.freebsd.org/changeset/base/242867
Log:
MFi386: r211924
Register an interrupt vector for DTrace return probes.
Modified:
head/sys/pc98/pc98/machdep.c
Modified: head/sys/pc98/pc98/machdep.c
==============================================================================
--- head/sys/pc98/pc98/machdep.c Sat Nov 10 13:24:33 2012
(r242866)
+++ head/sys/pc98/pc98/machdep.c Sat Nov 10 13:25:46 2012
(r242867)
@@ -54,6 +54,7 @@ __FBSDID("$FreeBSD$");
#include "opt_mp_watchdog.h"
#include "opt_npx.h"
#include "opt_perfmon.h"
+#include "opt_kdtrace.h"
#include <sys/param.h>
#include <sys/proc.h>
@@ -1772,7 +1773,11 @@ extern inthand_t
IDTVEC(bnd), IDTVEC(ill), IDTVEC(dna), IDTVEC(fpusegm),
IDTVEC(tss), IDTVEC(missing), IDTVEC(stk), IDTVEC(prot),
IDTVEC(page), IDTVEC(mchk), IDTVEC(rsvd), IDTVEC(fpu), IDTVEC(align),
- IDTVEC(xmm), IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
+ IDTVEC(xmm),
+#ifdef KDTRACE_HOOKS
+ IDTVEC(dtrace_ret),
+#endif
+ IDTVEC(lcall_syscall), IDTVEC(int0x80_syscall);
#ifdef DDB
/*
@@ -2291,6 +2296,10 @@ init386(first)
GSEL(GCODE_SEL, SEL_KPL));
setidt(IDT_SYSCALL, &IDTVEC(int0x80_syscall), SDT_SYS386TGT, SEL_UPL,
GSEL(GCODE_SEL, SEL_KPL));
+#ifdef KDTRACE_HOOKS
+ setidt(IDT_DTRACE_RET, &IDTVEC(dtrace_ret), SDT_SYS386TGT, SEL_UPL,
+ GSEL(GCODE_SEL, SEL_KPL));
+#endif
r_idt.rd_limit = sizeof(idt0) - 1;
r_idt.rd_base = (int) idt;
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