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Diffstat (limited to 'sys/compat/linux/linux_time.c')
-rw-r--r--sys/compat/linux/linux_time.c221
1 files changed, 199 insertions, 22 deletions
diff --git a/sys/compat/linux/linux_time.c b/sys/compat/linux/linux_time.c
index 8800d67..1359025 100644
--- a/sys/compat/linux/linux_time.c
+++ b/sys/compat/linux/linux_time.c
@@ -36,10 +36,13 @@ __KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp
#endif
#include "opt_compat.h"
+#include "opt_kdtrace.h"
#include <sys/param.h>
+#include <sys/kernel.h>
#include <sys/ucred.h>
#include <sys/mount.h>
+#include <sys/sdt.h>
#include <sys/signal.h>
#include <sys/stdint.h>
#include <sys/syscallsubr.h>
@@ -56,6 +59,63 @@ __KERNEL_RCSID(0, "$NetBSD: linux_time.c,v 1.14 2006/05/14 03:40:54 christos Exp
#include <machine/../linux/linux_proto.h>
#endif
+#include <compat/linux/linux_dtrace.h>
+
+/* DTrace init */
+LIN_SDT_PROVIDER_DECLARE(LINUX_DTRACE);
+
+/**
+ * DTrace probes in this module.
+ */
+LIN_SDT_PROBE_DEFINE2(time, native_to_linux_timespec, entry,
+ "struct l_timespec *", "struct timespec *");
+LIN_SDT_PROBE_DEFINE0(time, native_to_linux_timespec, return);
+LIN_SDT_PROBE_DEFINE2(time, linux_to_native_timespec, entry,
+ "struct timespec *", "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE1(time, linux_to_native_timespec, return, "int");
+LIN_SDT_PROBE_DEFINE2(time, linux_to_native_clockid, entry, "clockid_t *",
+ "clockid_t");
+LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unsupported_clockid,
+ "clockid_t");
+LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, unknown_clockid,
+ "clockid_t");
+LIN_SDT_PROBE_DEFINE1(time, linux_to_native_clockid, return, "int");
+LIN_SDT_PROBE_DEFINE2(time, linux_clock_gettime, entry, "clockid_t",
+ "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, conversion_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, gettime_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, copyout_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_gettime, return, "int");
+LIN_SDT_PROBE_DEFINE2(time, linux_clock_settime, entry, "clockid_t",
+ "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, conversion_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, settime_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, copyin_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_settime, return, "int");
+LIN_SDT_PROBE_DEFINE2(time, linux_clock_getres, entry, "clockid_t",
+ "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE0(time, linux_clock_getres, nullcall);
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, conversion_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, getres_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, copyout_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_getres, return, "int");
+LIN_SDT_PROBE_DEFINE2(time, linux_nanosleep, entry, "const struct l_timespec *",
+ "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, conversion_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, nanosleep_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyout_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, copyin_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_nanosleep, return, "int");
+LIN_SDT_PROBE_DEFINE4(time, linux_clock_nanosleep, entry, "clockid_t", "int",
+ "struct l_timespec *", "struct l_timespec *");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, conversion_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, nanosleep_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyout_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, copyin_error, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_flags, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, unsupported_clockid, "int");
+LIN_SDT_PROBE_DEFINE1(time, linux_clock_nanosleep, return, "int");
+
static void native_to_linux_timespec(struct l_timespec *,
struct timespec *);
static int linux_to_native_timespec(struct timespec *,
@@ -65,24 +125,38 @@ static int linux_to_native_clockid(clockid_t *, clockid_t);
static void
native_to_linux_timespec(struct l_timespec *ltp, struct timespec *ntp)
{
+
+ LIN_SDT_PROBE2(time, native_to_linux_timespec, entry, ltp, ntp);
+
ltp->tv_sec = ntp->tv_sec;
ltp->tv_nsec = ntp->tv_nsec;
+
+ LIN_SDT_PROBE0(time, native_to_linux_timespec, return);
}
static int
linux_to_native_timespec(struct timespec *ntp, struct l_timespec *ltp)
{
- if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L)
+
+ LIN_SDT_PROBE2(time, linux_to_native_timespec, entry, ntp, ltp);
+
+ if (ltp->tv_sec < 0 || ltp->tv_nsec > (l_long)999999999L) {
+ LIN_SDT_PROBE1(time, linux_to_native_timespec, return, EINVAL);
return (EINVAL);
+ }
ntp->tv_sec = ltp->tv_sec;
ntp->tv_nsec = ltp->tv_nsec;
+ LIN_SDT_PROBE1(time, linux_to_native_timespec, return, 0);
return (0);
}
static int
linux_to_native_clockid(clockid_t *n, clockid_t l)
{
+
+ LIN_SDT_PROBE2(time, linux_to_native_clockid, entry, n, l);
+
switch (l) {
case LINUX_CLOCK_REALTIME:
*n = CLOCK_REALTIME;
@@ -94,11 +168,20 @@ linux_to_native_clockid(clockid_t *n, clockid_t l)
case LINUX_CLOCK_THREAD_CPUTIME_ID:
case LINUX_CLOCK_REALTIME_HR:
case LINUX_CLOCK_MONOTONIC_HR:
+ LIN_SDT_PROBE1(time, linux_to_native_clockid,
+ unsupported_clockid, l);
+ LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
+ return (EINVAL);
+ break;
default:
+ LIN_SDT_PROBE1(time, linux_to_native_clockid,
+ unknown_clockid, l);
+ LIN_SDT_PROBE1(time, linux_to_native_clockid, return, EINVAL);
return (EINVAL);
break;
}
+ LIN_SDT_PROBE1(time, linux_to_native_clockid, return, 0);
return (0);
}
@@ -110,15 +193,29 @@ linux_clock_gettime(struct thread *td, struct linux_clock_gettime_args *args)
clockid_t nwhich = 0; /* XXX: GCC */
struct timespec tp;
+ LIN_SDT_PROBE2(time, linux_clock_gettime, entry, args->which, args->tp);
+
error = linux_to_native_clockid(&nwhich, args->which);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_gettime, conversion_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
return (error);
+ }
error = kern_clock_gettime(td, nwhich, &tp);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_gettime, gettime_error, error);
+ LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
return (error);
+ }
native_to_linux_timespec(&lts, &tp);
- return (copyout(&lts, args->tp, sizeof lts));
+ error = copyout(&lts, args->tp, sizeof lts);
+ if (error != 0)
+ LIN_SDT_PROBE1(time, linux_clock_gettime, copyout_error, error);
+
+ LIN_SDT_PROBE1(time, linux_clock_gettime, return, error);
+ return (error);
}
int
@@ -129,17 +226,35 @@ linux_clock_settime(struct thread *td, struct linux_clock_settime_args *args)
int error;
clockid_t nwhich = 0; /* XXX: GCC */
+ LIN_SDT_PROBE2(time, linux_clock_settime, entry, args->which, args->tp);
+
error = linux_to_native_clockid(&nwhich, args->which);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
return (error);
+ }
error = copyin(args->tp, &lts, sizeof lts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_settime, copyin_error, error);
+ LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
return (error);
+ }
error = linux_to_native_timespec(&ts, &lts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_settime, conversion_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
return (error);
+ }
+
+ error = kern_clock_settime(td, nwhich, &ts);
+ if (error != 0)
+ LIN_SDT_PROBE1(time, linux_clock_settime, settime_error, error);
- return (kern_clock_settime(td, nwhich, &ts));
+ LIN_SDT_PROBE1(time, linux_clock_settime, return, error);
+ return (error);
}
int
@@ -150,18 +265,35 @@ linux_clock_getres(struct thread *td, struct linux_clock_getres_args *args)
int error;
clockid_t nwhich = 0; /* XXX: GCC */
- if (args->tp == NULL)
+ LIN_SDT_PROBE2(time, linux_clock_getres, entry, args->which, args->tp);
+
+ if (args->tp == NULL) {
+ LIN_SDT_PROBE0(time, linux_clock_getres, nullcall);
+ LIN_SDT_PROBE1(time, linux_clock_getres, return, 0);
return (0);
+ }
error = linux_to_native_clockid(&nwhich, args->which);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_getres, conversion_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
return (error);
+ }
error = kern_clock_getres(td, nwhich, &ts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_getres, getres_error, error);
+ LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
return (error);
+ }
native_to_linux_timespec(&lts, &ts);
- return (copyout(&lts, args->tp, sizeof lts));
+ error = copyout(&lts, args->tp, sizeof lts);
+ if (error != 0)
+ LIN_SDT_PROBE1(time, linux_clock_getres, copyout_error, error);
+
+ LIN_SDT_PROBE1(time, linux_clock_getres, return, error);
+ return (error);
}
int
@@ -172,9 +304,14 @@ linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args)
struct timespec rqts, rmts;
int error;
+ LIN_SDT_PROBE2(time, linux_nanosleep, entry, args->rqtp, args->rmtp);
+
error = copyin(args->rqtp, &lrqts, sizeof lrqts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_nanosleep, copyin_error, error);
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
return (error);
+ }
if (args->rmtp != NULL)
rmtp = &rmts;
@@ -182,19 +319,30 @@ linux_nanosleep(struct thread *td, struct linux_nanosleep_args *args)
rmtp = NULL;
error = linux_to_native_timespec(&rqts, &lrqts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_nanosleep, conversion_error, error);
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
return (error);
+ }
error = kern_nanosleep(td, &rqts, rmtp);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_nanosleep, nanosleep_error, error);
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
return (error);
+ }
if (args->rmtp != NULL) {
native_to_linux_timespec(&lrmts, rmtp);
error = copyout(&lrmts, args->rmtp, sizeof(lrmts));
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_nanosleep, copyout_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
return (error);
+ }
}
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, 0);
return (0);
}
@@ -206,15 +354,31 @@ linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args
struct timespec rqts, rmts;
int error;
- if (args->flags != 0)
+ LIN_SDT_PROBE4(time, linux_clock_nanosleep, entry, args->which,
+ args->flags, args->rqtp, args->rmtp);
+
+ if (args->flags != 0) {
+ /* XXX deal with TIMER_ABSTIME */
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_flags,
+ args->flags);
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, EINVAL);
return (EINVAL); /* XXX deal with TIMER_ABSTIME */
+ }
- if (args->which != LINUX_CLOCK_REALTIME)
+ if (args->which != LINUX_CLOCK_REALTIME) {
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, unsupported_clockid,
+ args->which);
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, EINVAL);
return (EINVAL);
+ }
error = copyin(args->rqtp, &lrqts, sizeof lrqts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, copyin_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
return (error);
+ }
if (args->rmtp != NULL)
rmtp = &rmts;
@@ -222,18 +386,31 @@ linux_clock_nanosleep(struct thread *td, struct linux_clock_nanosleep_args *args
rmtp = NULL;
error = linux_to_native_timespec(&rqts, &lrqts);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, conversion_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
return (error);
+ }
error = kern_nanosleep(td, &rqts, rmtp);
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, nanosleep_error,
+ error);
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, error);
return (error);
+ }
if (args->rmtp != NULL) {
native_to_linux_timespec(&lrmts, rmtp);
error = copyout(&lrmts, args->rmtp, sizeof lrmts );
- if (error != 0)
+ if (error != 0) {
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep,
+ copyout_error, error);
+ LIN_SDT_PROBE1(time, linux_nanosleep, return, error);
return (error);
+ }
}
+ LIN_SDT_PROBE1(time, linux_clock_nanosleep, return, 0);
return (0);
}
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