[PATCH v7 09/25] lib: vdso: Add compat support

Vincenzo Frascino
2019-06-21T09:53:34Z

Some 64 bit architectures have support for 32 bit applications that
require a separate version of the vDSOs.

Add support to the generic code for compat fallback functions.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Tested-by: Shijith Thotton <sthotton@marvell.com>
Tested-by: Andre Przywara <andre.przywara@arm.com>
---
lib/vdso/gettimeofday.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index 473e2dda0220..fc43f457ed2c 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -21,7 +21,11 @@
* - 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 */

static int do_hres(const struct vdso_data *vd,
clockid_t clk,
--
2.21.0