svn commit: r255937 - head/sys/sparc64/include
Marius Strobl
marius at FreeBSD.org
Sun Sep 29 13:09:26 UTC 2013
Author: marius
Date: Sun Sep 29 13:09:25 2013
New Revision: 255937
URL: http://svnweb.freebsd.org/changeset/base/255937
Log:
Implement GET_STACK_USAGE.
Discussed with: mav
Approved by: re (kib)
MFC after: 1 week
Modified:
head/sys/sparc64/include/proc.h
Modified: head/sys/sparc64/include/proc.h
==============================================================================
--- head/sys/sparc64/include/proc.h Sun Sep 29 13:05:22 2013 (r255936)
+++ head/sys/sparc64/include/proc.h Sun Sep 29 13:09:25 2013 (r255937)
@@ -55,6 +55,17 @@ struct mdproc {
#ifdef _KERNEL
+#include <machine/pcb.h>
+
+/* Get the current kernel thread stack usage. */
+#define GET_STACK_USAGE(total, used) do { \
+ struct thread *td = curthread; \
+ (total) = td->td_kstack_pages * PAGE_SIZE - sizeof(struct pcb); \
+ (used) = (char *)td->td_kstack + \
+ td->td_kstack_pages * PAGE_SIZE - \
+ (char *)&td; \
+} while (0)
+
struct syscall_args {
u_int code;
struct sysent *callp;
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