aboutsummaryrefslogtreecommitdiffstats
path: root/include/vdso
diff options
context:
space:
mode:
authorVincenzo Frascino <vincenzo.frascino@arm.com>2020-03-20 14:53:50 +0000
committerThomas Gleixner <tglx@linutronix.de>2020-03-21 15:24:03 +0100
commit8c59ab839f526437831ff6d1405c9a6d93f475eb (patch)
tree1e1fc21db3715b1976e0b96e31932915474fdfba /include/vdso
parent78c8516141014cf6322ac899c3832f66612504bb (diff)
lib/vdso: Enable common headers
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. Refactor the unified vdso code to use the common headers. Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lkml.kernel.org/r/20200320145351.32292-26-vincenzo.frascino@arm.com
Diffstat (limited to 'include/vdso')
-rw-r--r--include/vdso/datapage.h33
1 files changed, 30 insertions, 3 deletions
diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
index 30c4cb0428d1..5cbc9fcbfd45 100644
--- a/include/vdso/datapage.h
+++ b/include/vdso/datapage.h
@@ -4,9 +4,20 @@
#ifndef __ASSEMBLY__
-#include <linux/bits.h>
-#include <linux/time.h>
-#include <linux/types.h>
+#include <linux/compiler.h>
+#include <uapi/linux/time.h>
+#include <uapi/linux/types.h>
+#include <uapi/asm-generic/errno-base.h>
+
+#include <vdso/bits.h>
+#include <vdso/clocksource.h>
+#include <vdso/ktime.h>
+#include <vdso/limits.h>
+#include <vdso/math64.h>
+#include <vdso/processor.h>
+#include <vdso/time.h>
+#include <vdso/time32.h>
+#include <vdso/time64.h>
#define VDSO_BASES (CLOCK_TAI + 1)
#define VDSO_HRES (BIT(CLOCK_REALTIME) | \
@@ -99,6 +110,22 @@ struct vdso_data {
*/
extern struct vdso_data _vdso_data[CS_BASES] __attribute__((visibility("hidden")));
+/*
+ * The generic vDSO implementation requires that gettimeofday.h
+ * provides:
+ * - __arch_get_vdso_data(): to get the vdso datapage.
+ * - __arch_get_hw_counter(): to get the hw counter based on the
+ * clock_mode.
+ * - gettimeofday_fallback(): fallback for gettimeofday.
+ * - clock_gettime_fallback(): fallback for clock_gettime.
+ * - clock_getres_fallback(): fallback for clock_getres.
+ */
+#ifdef ENABLE_COMPAT_VDSO
+#include <asm/vdso/compat_gettimeofday.h>
+#else
+#include <asm/vdso/gettimeofday.h>
+#endif /* ENABLE_COMPAT_VDSO */
+
#endif /* !__ASSEMBLY__ */
#endif /* __VDSO_DATAPAGE_H */

Privacy Policy