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From: Vincenzo Frascino <vincenzo.frascino@arm.com>
To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, linux-mips@vger.kernel.org,
	linux-kselftest@vger.kernel.org
Cc: catalin.marinas@arm.com, will@kernel.org, paul.burton@mips.com,
	tglx@linutronix.de, salyzyn@android.com, 0x7f454c46@gmail.com,
	luto@kernel.org
Subject: [PATCH v2 2/8] lib: vdso: Build 32 bit specific functions in the right context
Date: Fri, 30 Aug 2019 14:58:56 +0100	[thread overview]
Message-ID: <20190830135902.20861-3-vincenzo.frascino@arm.com> (raw)
In-Reply-To: <20190830135902.20861-1-vincenzo.frascino@arm.com>

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

Exclude these symbols when BUILD_VDSO32 is not defined.

Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Andy Lutomirski <luto@kernel.org>
Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Reviewed-by: Andy Lutomirski <luto@kernel.org>
---
 lib/vdso/gettimeofday.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c
index e630e7ff57f1..a86e89e6dedc 100644
--- a/lib/vdso/gettimeofday.c
+++ b/lib/vdso/gettimeofday.c
@@ -117,6 +117,7 @@ __cvdso_clock_gettime(clockid_t clock, struct __kernel_timespec *ts)
 	return 0;
 }
 
+#ifdef BUILD_VDSO32
 static __maybe_unused int
 __cvdso_clock_gettime32(clockid_t clock, struct old_timespec32 *res)
 {
@@ -139,6 +140,7 @@ __cvdso_clock_gettime32(clockid_t clock, struct old_timespec32 *res)
 	}
 	return ret;
 }
+#endif /* BUILD_VDSO32 */
 
 static __maybe_unused int
 __cvdso_gettimeofday(struct __kernel_old_timeval *tv, struct timezone *tz)
@@ -229,6 +231,7 @@ int __cvdso_clock_getres(clockid_t clock, struct __kernel_timespec *res)
 	return 0;
 }
 
+#ifdef BUILD_VDSO32
 static __maybe_unused int
 __cvdso_clock_getres_time32(clockid_t clock, struct old_timespec32 *res)
 {
@@ -251,4 +254,5 @@ __cvdso_clock_getres_time32(clockid_t clock, struct old_timespec32 *res)
 	}
 	return ret;
 }
+#endif /* BUILD_VDSO32 */
 #endif /* VDSO_HAS_CLOCK_GETRES */
-- 
2.23.0


  parent reply	other threads:[~2019-08-30 13:59 UTC|newest]

Thread overview: 41+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-08-30 13:58 [PATCH v2 0/8] vdso: Complete the conversion to 32bit syscalls Vincenzo Frascino
2019-08-30 13:58 ` [PATCH v2 1/8] arm64: compat: vdso: Expose BUILD_VDSO32 Vincenzo Frascino
2019-09-03 14:36   ` Vincenzo Frascino
2019-09-03 14:38     ` Will Deacon
2020-01-13 19:09   ` [tip: timers/core] " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino
2019-08-30 13:58 ` Vincenzo Frascino [this message]
2020-01-13 19:09   ` [tip: timers/core] lib/vdso: Build 32 bit specific functions in the right context tip-bot2 for Vincenzo Frascino
2020-01-13 22:28   ` [PATCH v2 2/8] lib: vdso: " Thomas Gleixner
2020-01-14  9:33     ` Thomas Gleixner
2020-01-14 10:15       ` Vincenzo Frascino
2020-01-14 10:37         ` Thomas Gleixner
2020-01-14 10:41           ` Vincenzo Frascino
2020-01-14 11:15           ` Vincenzo Frascino
2020-01-14 13:02     ` [tip: timers/core] ARM: vdso: Set BUILD_VDSO32 and provide 32bit fallbacks tip-bot2 for Thomas Gleixner
2020-01-14 13:02   ` [tip: timers/core] lib/vdso: Build 32 bit specific functions in the right context tip-bot2 for Vincenzo Frascino
2020-01-16 19:43   ` [PATCH] MIPS: vdso: Define BUILD_VDSO32 when building a 32bit kernel Thomas Gleixner
2020-01-16 20:11     ` Paul Burton
2020-01-16 20:28     ` [tip: timers/core] " tip-bot2 for Thomas Gleixner
2019-08-30 13:58 ` [PATCH v2 3/8] mips: compat: vdso: Use legacy syscalls as fallback Vincenzo Frascino
2019-09-03 13:52   ` Paul Burton
2019-09-03 14:20     ` Vincenzo Frascino
2019-09-03 21:00   ` Paul Burton
2019-08-30 13:58 ` [PATCH v2 4/8] lib: vdso: Remove VDSO_HAS_32BIT_FALLBACK Vincenzo Frascino
2020-01-13 19:09   ` [tip: timers/core] lib/vdso: " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino
2019-08-30 13:58 ` [PATCH v2 5/8] lib: vdso: Remove checks on return value for 32 bit vDSO Vincenzo Frascino
2019-08-30 14:16   ` Vincenzo Frascino
2020-01-13 19:09   ` [tip: timers/core] lib/vdso: " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino
2019-08-30 13:59 ` [PATCH v2 6/8] arm64: compat: vdso: Remove unused VDSO_HAS_32BIT_FALLBACK Vincenzo Frascino
2020-01-13 19:09   ` [tip: timers/core] " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino
2019-08-30 13:59 ` [PATCH v2 7/8] mips: " Vincenzo Frascino
2019-09-03 14:46   ` Paul Burton
2019-09-03 14:51     ` Vincenzo Frascino
2020-01-13 19:09   ` [tip: timers/core] " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino
2019-08-30 13:59 ` [PATCH v2 8/8] x86: " Vincenzo Frascino
2020-01-13 19:09   ` [tip: timers/core] x86/vdso: " tip-bot2 for Vincenzo Frascino
2020-01-14 13:02   ` tip-bot2 for Vincenzo Frascino

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