[PATCH v3 11/26] linux/time32.h: Extract common header for vDSO

Vincenzo Frascino
2020-03-13T15:44:41Z

The vDSO library should only include the necessary headers required for
a userspace library (UAPI and a minimal set of kernel headers). To make
this possible it is necessary to isolate from the kernel headers the
common parts that are strictly necessary to build the library.

Split time32.h into linux and common headers to make the latter suitable
for inclusion in the vDSO library.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
include/linux/time32.h | 14 ++------------
include/vdso/time32.h | 17 +++++++++++++++++
2 files changed, 19 insertions(+), 12 deletions(-)
create mode 100644 include/vdso/time32.h

diff --git a/include/linux/time32.h b/include/linux/time32.h
index cad4c3186002..0933f28214c0 100644
--- a/include/linux/time32.h
+++ b/include/linux/time32.h
@@ -12,19 +12,9 @@
#include <linux/time64.h>
#include <linux/timex.h>

-#define TIME_T_MAX (__kernel_old_time_t)((1UL << ((sizeof(__kernel_old_time_t) << 3) - 1)) - 1)
-
-typedef s32 old_time32_t;
-
-struct old_timespec32 {
- old_time32_t tv_sec;
- s32 tv_nsec;
-};
+#include <vdso/time32.h>

-struct old_timeval32 {
- old_time32_t tv_sec;
- s32 tv_usec;
-};
+#define TIME_T_MAX (__kernel_old_time_t)((1UL << ((sizeof(__kernel_old_time_t) << 3) - 1)) - 1)

struct old_itimerspec32 {
struct old_timespec32 it_interval;
diff --git a/include/vdso/time32.h b/include/vdso/time32.h
new file mode 100644
index 000000000000..fdf56f932f67
--- /dev/null
+++ b/include/vdso/time32.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __VDSO_TIME32_H
+#define __VDSO_TIME32_H
+
+typedef s32 old_time32_t;
+
+struct old_timespec32 {
+ old_time32_t tv_sec;
+ s32 tv_nsec;
+};
+
+struct old_timeval32 {
+ old_time32_t tv_sec;
+ s32 tv_usec;
+};
+
+#endif /* __VDSO_TIME32_H */
--
2.25.1