From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, linux-mips@vger.kernel.org, x86@kernel.org Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Arnd Bergmann <arnd@arndb.de>, Russell King <linux@armlinux.org.uk>, Paul Burton <paul.burton@mips.com>, Thomas Gleixner <tglx@linutronix.de>, Andy Lutomirski <luto@kernel.org>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Stephen Boyd <sboyd@kernel.org>, Mark Salyzyn <salyzyn@android.com>, Kees Cook <keescook@chromium.org>, Peter Collingbourne <pcc@google.com>, Dmitry Safonov <0x7f454c46@gmail.com>, Andrei Vagin <avagin@openvz.org>, Nick Desaulniers <ndesaulniers@google.com>, Marc Zyngier <maz@kernel.org>, Mark Rutland <Mark.Rutland@arm.com> Subject: [PATCH v4 25/26] lib: vdso: Enable common headers Date: Tue, 17 Mar 2020 12:22:19 +0000 [thread overview] Message-ID: <20200317122220.30393-26-vincenzo.frascino@arm.com> (raw) In-Reply-To: <20200317122220.30393-1-vincenzo.frascino@arm.com> 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. Cc: Andy Lutomirski <luto@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- include/vdso/datapage.h | 33 ++++++++++++++++++++++++++++++--- lib/vdso/gettimeofday.c | 22 ---------------------- 2 files changed, 30 insertions(+), 25 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 */ diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c index 72d282ffd156..a2909af4b924 100644 --- a/lib/vdso/gettimeofday.c +++ b/lib/vdso/gettimeofday.c @@ -2,31 +2,9 @@ /* * Generic userspace implementations of gettimeofday() and similar. */ -#include <linux/compiler.h> -#include <linux/math64.h> -#include <linux/time.h> -#include <linux/kernel.h> -#include <linux/hrtimer_defs.h> -#include <linux/clocksource.h> #include <vdso/datapage.h> #include <vdso/helpers.h> -/* - * 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 */ - #ifndef vdso_calc_delta /* * Default implementation which works for all sane clocksources. That -- 2.25.1
WARNING: multiple messages have this Message-ID (diff)
From: Vincenzo Frascino <vincenzo.frascino@arm.com> To: linux-arch@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, clang-built-linux@googlegroups.com, linux-mips@vger.kernel.org, x86@kernel.org Cc: Mark Rutland <Mark.Rutland@arm.com>, Nick Desaulniers <ndesaulniers@google.com>, Dmitry Safonov <0x7f454c46@gmail.com>, Kees Cook <keescook@chromium.org>, Arnd Bergmann <arnd@arndb.de>, Stephen Boyd <sboyd@kernel.org>, Catalin Marinas <catalin.marinas@arm.com>, Will Deacon <will.deacon@arm.com>, Russell King <linux@armlinux.org.uk>, Mark Salyzyn <salyzyn@android.com>, Paul Burton <paul.burton@mips.com>, Ingo Molnar <mingo@redhat.com>, Borislav Petkov <bp@alien8.de>, Andy Lutomirski <luto@kernel.org>, Marc Zyngier <maz@kernel.org>, Thomas Gleixner <tglx@linutronix.de>, Vincenzo Frascino <vincenzo.frascino@arm.com>, Peter Collingbourne <pcc@google.com>, Andrei Vagin <avagin@openvz.org> Subject: [PATCH v4 25/26] lib: vdso: Enable common headers Date: Tue, 17 Mar 2020 12:22:19 +0000 [thread overview] Message-ID: <20200317122220.30393-26-vincenzo.frascino@arm.com> (raw) In-Reply-To: <20200317122220.30393-1-vincenzo.frascino@arm.com> 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. Cc: Andy Lutomirski <luto@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com> --- include/vdso/datapage.h | 33 ++++++++++++++++++++++++++++++--- lib/vdso/gettimeofday.c | 22 ---------------------- 2 files changed, 30 insertions(+), 25 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 */ diff --git a/lib/vdso/gettimeofday.c b/lib/vdso/gettimeofday.c index 72d282ffd156..a2909af4b924 100644 --- a/lib/vdso/gettimeofday.c +++ b/lib/vdso/gettimeofday.c @@ -2,31 +2,9 @@ /* * Generic userspace implementations of gettimeofday() and similar. */ -#include <linux/compiler.h> -#include <linux/math64.h> -#include <linux/time.h> -#include <linux/kernel.h> -#include <linux/hrtimer_defs.h> -#include <linux/clocksource.h> #include <vdso/datapage.h> #include <vdso/helpers.h> -/* - * 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 */ - #ifndef vdso_calc_delta /* * Default implementation which works for all sane clocksources. That -- 2.25.1 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2020-03-17 12:24 UTC|newest] Thread overview: 108+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-03-17 12:21 [PATCH v4 00/26] Introduce common headers for vDSO Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:21 ` [PATCH v4 01/26] linux/const.h: Extract common header " Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:21 ` [PATCH v4 02/26] linux/bits.h: " Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:21 ` [PATCH v4 03/26] linux/limits.h: " Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:21 ` [PATCH v4 04/26] x86:Introduce asm/vdso/clocksource.h Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:21 ` [PATCH v4 05/26] arm: Introduce asm/vdso/clocksource.h Vincenzo Frascino 2020-03-17 12:21 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 06/26] arm64: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 07/26] mips: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 08/26] linux/clocksource.h: Extract common header for vDSO Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 09/26] linux/math64.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 10/26] linux/time.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 11/26] linux/time32.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 12/26] linux/time64.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 13/26] linux/jiffies.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 14/26] linux/ktime.h: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 15/26] common: Introduce processor.h Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 16/26] scripts: Fix the inclusion order in modpost Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 17/26] linux/elfnote.h: Replace elf.h with UAPI equivalent Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 18/26] arm64: vdso32: Replace TASK_SIZE_32 check in vgettimeofday Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 14:38 ` Catalin Marinas 2020-03-17 14:38 ` Catalin Marinas 2020-03-17 14:38 ` Catalin Marinas 2020-03-17 15:04 ` Vincenzo Frascino 2020-03-17 15:04 ` Vincenzo Frascino 2020-03-17 15:04 ` Vincenzo Frascino 2020-03-17 15:50 ` Catalin Marinas 2020-03-17 15:50 ` Catalin Marinas 2020-03-17 15:50 ` Catalin Marinas 2020-03-17 16:40 ` Vincenzo Frascino 2020-03-17 16:40 ` Vincenzo Frascino 2020-03-17 16:40 ` Vincenzo Frascino 2020-03-17 16:43 ` Vincenzo Frascino 2020-03-17 16:43 ` Vincenzo Frascino 2020-03-17 16:43 ` Vincenzo Frascino 2020-03-17 17:48 ` Catalin Marinas 2020-03-17 17:48 ` Catalin Marinas 2020-03-17 17:48 ` Catalin Marinas 2020-03-18 16:14 ` Vincenzo Frascino 2020-03-18 16:14 ` Vincenzo Frascino 2020-03-18 16:14 ` Vincenzo Frascino 2020-03-18 18:36 ` Catalin Marinas 2020-03-18 18:36 ` Catalin Marinas 2020-03-18 18:36 ` Catalin Marinas 2020-03-19 12:38 ` Vincenzo Frascino 2020-03-19 12:38 ` Vincenzo Frascino 2020-03-19 12:38 ` Vincenzo Frascino 2020-03-19 18:10 ` Catalin Marinas 2020-03-19 18:10 ` Catalin Marinas 2020-03-19 18:10 ` Catalin Marinas 2020-03-20 13:05 ` Vincenzo Frascino 2020-03-20 13:05 ` Vincenzo Frascino 2020-03-20 13:05 ` Vincenzo Frascino 2020-03-20 14:22 ` Catalin Marinas 2020-03-20 14:22 ` Catalin Marinas 2020-03-20 14:22 ` Catalin Marinas 2020-03-20 14:41 ` Vincenzo Frascino 2020-03-20 14:41 ` Vincenzo Frascino 2020-03-20 14:41 ` Vincenzo Frascino 2020-03-19 15:49 ` Andy Lutomirski 2020-03-19 15:49 ` Andy Lutomirski 2020-03-19 15:49 ` Andy Lutomirski 2020-03-19 16:58 ` Vincenzo Frascino 2020-03-19 16:58 ` Vincenzo Frascino 2020-03-19 16:58 ` Vincenzo Frascino 2020-03-19 18:32 ` Will Deacon 2020-03-19 18:32 ` Will Deacon 2020-03-19 18:32 ` Will Deacon 2020-03-21 14:33 ` [tip: timers/core] arm64: vdso32: Code clean up tip-bot2 for Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 19/26] arm64: Introduce asm/vdso/processor.h Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 17:52 ` Catalin Marinas 2020-03-17 17:52 ` Catalin Marinas 2020-03-17 17:52 ` Catalin Marinas 2020-03-17 12:22 ` [PATCH v4 20/26] arm64: vdso: Include common headers in the vdso library Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 21/26] arm64: vdso32: " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 22/26] mips: vdso: Enable mips to use common headers Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 23/26] x86: vdso: Enable x86 " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 24/26] arm: vdso: Enable arm " Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino [this message] 2020-03-17 12:22 ` [PATCH v4 25/26] lib: vdso: Enable " Vincenzo Frascino 2020-03-17 12:22 ` [PATCH v4 26/26] arm64: vdso32: Enable Clang Compilation Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino 2020-03-17 12:22 ` Vincenzo Frascino
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