diff options
Diffstat (limited to 'sys/cddl/dev/dtrace/dtrace_test.c')
| -rw-r--r-- | sys/cddl/dev/dtrace/dtrace_test.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/sys/cddl/dev/dtrace/dtrace_test.c b/sys/cddl/dev/dtrace/dtrace_test.c index d484fb2..f50ad89 100644 --- a/sys/cddl/dev/dtrace/dtrace_test.c +++ b/sys/cddl/dev/dtrace/dtrace_test.c @@ -25,15 +25,25 @@ * $FreeBSD$ * */ +#include "opt_kdtrace.h" #include <sys/cdefs.h> #include <sys/types.h> #include <sys/param.h> +#include <sys/systm.h> + #include <sys/conf.h> #include <sys/kernel.h> #include <sys/module.h> +#include <sys/sdt.h> +#include <sys/sysctl.h> #include <sys/vnode.h> +SDT_PROVIDER_DEFINE(test); + +SDT_PROBE_DEFINE7(test, , , sdttest, sdttest, "int", "int", "int", "int", "int", + "int", "int"); + /* * These are variables that the DTrace test suite references in the * Solaris kernel. We define them here so that the tests function @@ -45,6 +55,33 @@ typedef struct vnode vnode_t; vnode_t dummy; vnode_t *rootvp = &dummy; +/* + * Test SDT probes with more than 5 arguments. On amd64, such probes require + * special handling since only the first 5 arguments will be passed to + * dtrace_probe() in registers; the rest must be fetched off the stack. + */ +static int +dtrace_test_sdttest(SYSCTL_HANDLER_ARGS) +{ + int val, error; + + val = 0; + error = sysctl_handle_int(oidp, &val, 0, req); + if (error || req->newptr == NULL) + return (error); + else if (val == 0) + return (0); + + SDT_PROBE7(test, , , sdttest, 1, 2, 3, 4, 5, 6, 7); + + return (error); +} + +static SYSCTL_NODE(_debug, OID_AUTO, dtracetest, CTLFLAG_RD, 0, ""); + +SYSCTL_PROC(_debug_dtracetest, OID_AUTO, sdttest, CTLTYPE_INT | CTLFLAG_RW, + NULL, 0, dtrace_test_sdttest, "I", "Trigger the SDT test probe"); + static int dtrace_test_modevent(module_t mod, int type, void *data) { |
