linux-kernel - [tip: timers/core] arm64: compat: vdso: Expose BUILD

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Date:   Tue, 14 Jan 2020 13:02:24 -0000
From:   "tip-bot2 for Vincenzo Frascino" <tip-bot2@...utronix.de>
To:     linux-tip-commits@...r.kernel.org
Cc:     Vincenzo Frascino <vincenzo.frascino@....com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Catalin Marinas <catalin.marinas@....com>,
        x86 <x86@...nel.org>, LKML <linux-kernel@...r.kernel.org>
Subject: [tip: timers/core] arm64: compat: vdso: Expose BUILD_VDSO32

The following commit has been merged into the timers/core branch of tip:

Commit-ID:     3b5584afeef05319ade0fbf5f634a64fd3e5772b
Gitweb:        https://git.kernel.org/tip/3b5584afeef05319ade0fbf5f634a64fd3e5772b
Author:        Vincenzo Frascino <vincenzo.frascino@....com>
AuthorDate:    Fri, 30 Aug 2019 14:58:55 +01:00
Committer:     Thomas Gleixner <tglx@...utronix.de>
CommitterDate: Tue, 14 Jan 2020 12:20:43 +01:00

arm64: compat: vdso: Expose BUILD_VDSO32

clock_gettime32 and clock_getres_time32 should be compiled only with the
32 bit vdso library.

Expose BUILD_VDSO32 when arm64 compat is compiled, to provide an
indication to the generic library to include these symbols.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@....com>
Signed-off-by: Thomas Gleixner <tglx@...utronix.de>
Acked-by: Catalin Marinas <catalin.marinas@....com>
Link: https://lore.kernel.org/r/20190830135902.20861-2-vincenzo.frascino@arm.com


---
 arch/arm64/include/asm/vdso/compat_gettimeofday.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/include/asm/vdso/compat_gettimeofday.h b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
index c50ee1b..fe7afe0 100644
--- a/arch/arm64/include/asm/vdso/compat_gettimeofday.h
+++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h
@@ -17,6 +17,7 @@
 #define VDSO_HAS_CLOCK_GETRES		1
 
 #define VDSO_HAS_32BIT_FALLBACK		1
+#define BUILD_VDSO32			1
 
 static __always_inline
 int gettimeofday_fallback(struct __kernel_old_timeval *_tv,