[PATCH 15/27] lib: vdso: Add compat support

[PATCH 00/27] Unify vDSOs across more architectures · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 01/27] kernel: Standardize vdso_datapage · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 02/27] kernel: Add Monotonic boot time support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 03/27] kernel: Add International Atomic Time support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 04/27] kernel: Add masks support for Raw and NTP time · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 05/27] kernel: Add clock_mode support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 06/27] kernel: Define gettimeofday vdso common code · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 06/27] kernel: Define gettimeofday vdso common code · arnd@arndb.de (Arnd Bergmann) · 2018-11-09
[PATCH 06/27] kernel: Define gettimeofday vdso common code · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-13
[PATCH 06/27] kernel: Define gettimeofday vdso common code · arnd@arndb.de (Arnd Bergmann) · 2018-11-10
[PATCH 06/27] kernel: Define gettimeofday vdso common code · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-13
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · arnd@arndb.de (Arnd Bergmann) · 2018-11-09
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · Mark Salyzyn <hidden> · 2018-11-09
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · arnd@arndb.de (Arnd Bergmann) · 2018-11-09
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-13
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · arnd@arndb.de (Arnd Bergmann) · 2018-11-14
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-23
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · arnd@arndb.de (Arnd Bergmann) · 2018-11-23
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · Peter Collingbourne <hidden> · 2018-11-09
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-13
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · davem@davemloft.net (David Miller) · 2018-11-10
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · Mark Salyzyn <hidden> · 2018-11-12
[PATCH 07/27] arm64: Substitute gettimeofday with C implementation · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-14
[PATCH 08/27] arm64: compat: Alloc separate pages for vectors and sigpage · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 09/27] arm64: compat: Split kuser32 · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 10/27] arm64: compat: Refactor aarch32_alloc_vdso_pages() · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 11/27] arm64: compat: Add KUSER_HELPERS config option · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 12/27] arm64: compat: Add missing syscall numbers · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 13/27] arm64: compat: Expose signal related structures · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 14/27] arm64: compat: Generate asm offsets for signals · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 15/27] lib: vdso: Add compat support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 16/27] arm64: compat: Add vDSO · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 16/27] arm64: compat: Add vDSO · arnd@arndb.de (Arnd Bergmann) · 2018-11-09
[PATCH 17/27] arm64: Refactor vDSO code · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 18/27] arm64: compat: vDSO setup for compat layer · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 19/27] arm64: elf: vDSO code page discovery · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 20/27] arm64: compat: Get sigreturn trampolines from vDSO · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 21/27] arm64: Add vDSO compat support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 22/27] arm64: Enable compat vDSO support · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 23/27] arm: Add support for generic vDSO · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 23/27] arm: Add support for generic vDSO · arnd@arndb.de (Arnd Bergmann) · 2018-11-09
[PATCH 24/27] mips: Introduce vdso_direct · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 25/27] clock: csrc-4k: Add support for vdso_direct · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 26/27] clock: gic-timer: Add support for vdso_direct · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 27/27] mips: Add support for generic vDSO · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-09
[PATCH 00/27] Unify vDSOs across more architectures · arnd@arndb.de (Arnd Bergmann) · 2018-11-10
[PATCH 00/27] Unify vDSOs across more architectures · vincenzo.frascino@arm.com (Vincenzo Frascino) · 2018-11-23

STALE2757d

Revisions (7)

2018-11-09 v1 current
2018-11-29 v2 [diff vs current]
2018-12-13 v3 [diff vs current]
2019-01-15 v4 [diff vs current]
2019-02-22 v5 [diff vs current]
2019-05-30 v6 [diff vs current]
2019-06-21 v7 [diff vs current]

From: vincenzo.frascino@arm.com (Vincenzo Frascino)
Date: 2018-11-09 12:37:18
Also in: linux-arch
Subsystem: generic vdso library, library code, the rest · Maintainers: Andy Lutomirski, Thomas Gleixner, Vincenzo Frascino, Andrew Morton, Linus Torvalds

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

This patch adds support to the generic code for compat fallback
functions.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <redacted>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@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 ec903180d3da..572ac162bdac 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c

@@ -15,7 +15,11 @@
 #include <linux/hrtimer.h>
 #include <vdso/datapage.h>
 
+#ifdef ENABLE_COMPAT_VDSO
+#include <asm/vdso/compat_gettimeofday.h>
+#else
 #include <asm/vdso/gettimeofday.h>
+#endif /* ENABLE_COMPAT_VDSO */
 
 /* To improve performances, in this file, __always_inline it is used
  * for the functions called multiple times.

-- 
2.19.1

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