Module Name: src
Committed By: matt
Date: Tue Jun 25 17:38:07 UTC 2013
Modified Files:
src/sys/sys: syscallvar.h
Log Message:
Add a sy_invoke inline to do trace_enter/trace_exit dance.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/sys/syscallvar.h
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/sys/syscallvar.h
diff -u src/sys/sys/syscallvar.h:1.5 src/sys/sys/syscallvar.h:1.6
--- src/sys/sys/syscallvar.h:1.5 Tue Jun 2 23:21:38 2009
+++ src/sys/sys/syscallvar.h Tue Jun 25 17:38:06 2013
@@ -1,4 +1,4 @@
-/* $NetBSD: syscallvar.h,v 1.5 2009/06/02 23:21:38 pooka Exp $ */
+/* $NetBSD: syscallvar.h,v 1.6 2013/06/25 17:38:06 matt Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
@@ -64,6 +64,27 @@ sy_call(const struct sysent *sy, struct
return error;
}
+static inline int
+sy_invoke(const struct sysent *sy, struct lwp *l, const void *uap,
+ register_t *rval, int code)
+{
+ int error;
+
+ if (!__predict_false(l->l_proc->p_trace_enabled)
+ || __predict_false(sy->sy_flags & SYCALL_INDIRECT)
+ || (error = trace_enter(code, uap, sy->sy_narg)) == 0) {
+ rval[0] = 0;
+ rval[1] = 0;
+ error = sy_call(sy, l, uap, rval);
+ }
+
+ if (__predict_false(l->l_proc->p_trace_enabled)
+ && !__predict_false(sy->sy_flags & SYCALL_INDIRECT)) {
+ trace_exit(code, rval, error);
+ }
+ return error;
+}
+
/* inclusion in the kernel currently depends on SYSCALL_DEBUG */
extern const char * const syscallnames[];
