Hi,
I try to build amd64 profiling kernel in accordance with the following
guide.
http://www.netbsd.org/docs/kernel/profiling/
Howerver, GENERIC.PROF kernel build failure. I make the following
patch to fix this build failure.
====================
diff --git a/sys/arch/amd64/include/profile.h b/sys/arch/amd64/include/profile.h
index f760594..24ea606 100644
--- a/sys/arch/amd64/include/profile.h
+++ b/sys/arch/amd64/include/profile.h
@@ -85,7 +85,7 @@ __asm(" .globl __mcount \n"
\
#ifdef _KERNEL
#ifdef MULTIPROCESSOR
-__cpu_simple_lock_t __mcount_lock;
+extern __cpu_simple_lock_t __mcount_lock;
static inline void
MCOUNT_ENTER_MP(void)
diff --git a/sys/kern/subr_prof.c b/sys/kern/subr_prof.c
index 1f9136e..fbc0e17 100644
--- a/sys/kern/subr_prof.c
+++ b/sys/kern/subr_prof.c
@@ -48,6 +48,10 @@ __KERNEL_RCSID(0, "$NetBSD: subr_prof.c,v 1.47 2014/07/10
21:13:52 christos Exp
#include <sys/malloc.h>
#include <sys/gmon.h>
+#ifdef MULTIPROCESSOR
+__cpu_simple_lock_t __mcount_lock;
+#endif
+
MALLOC_DEFINE(M_GPROF, "gprof", "kernel profiling buffer");
/*
====================
Could you comment this patch?
Thanks,
--
//////////////////////////////////////////////////////////////////////
Internet Initiative Japan Inc.
Device Engineering Section,
Core Product Development Department,
Product Division,
Technology Unit
Kengo NAKAHARA <k-nakah...@iij.ad.jp>
