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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,
	clang-built-linux@googlegroups.com, x86@kernel.org
Cc: catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de,
	linux@armlinux.org.uk, paul.burton@mips.com, tglx@linutronix.de,
	luto@kernel.org, mingo@redhat.com, bp@alien8.de,
	sboyd@kernel.org, salyzyn@android.com, pcc@google.com,
	0x7f454c46@gmail.com, ndesaulniers@google.com, avagin@openvz.org
Subject: [PATCH 01/19] linux/const.h: Extract common header for vDSO
Date: Thu, 13 Feb 2020 16:15:56 +0000
Message-ID: <20200213161614.23246-2-vincenzo.frascino@arm.com> (raw)
In-Reply-To: <20200213161614.23246-1-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.

Split const.h into linux and common headers to make the latter suitable
for inclusion in the vDSO library.

Signed-off-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
---
 include/common/const.h | 10 ++++++++++
 include/linux/const.h  |  5 +----
 2 files changed, 11 insertions(+), 4 deletions(-)
 create mode 100644 include/common/const.h

diff --git a/include/common/const.h b/include/common/const.h
new file mode 100644
index 000000000000..cc209eec47a1
--- /dev/null
+++ b/include/common/const.h
@@ -0,0 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __COMMON_CONST_H
+#define __COMMON_CONST_H
+
+#include <uapi/linux/const.h>
+
+#define UL(x)		(_UL(x))
+#define ULL(x)		(_ULL(x))
+
+#endif /* __COMMON_CONST_H */
diff --git a/include/linux/const.h b/include/linux/const.h
index 7b55a55f5911..447a5b98d5a3 100644
--- a/include/linux/const.h
+++ b/include/linux/const.h
@@ -1,9 +1,6 @@
 #ifndef _LINUX_CONST_H
 #define _LINUX_CONST_H
 
-#include <uapi/linux/const.h>
-
-#define UL(x)		(_UL(x))
-#define ULL(x)		(_ULL(x))
+#include <common/const.h>
 
 #endif /* _LINUX_CONST_H */
-- 
2.25.0


  reply index

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 16:15 [PATCH 00/19] Introduce common headers Vincenzo Frascino
2020-02-13 16:15 ` Vincenzo Frascino [this message]
2020-02-13 16:15 ` [PATCH 02/19] linux/bits.h: Extract common header for vDSO Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 03/19] linux/limits.h: " Vincenzo Frascino
2020-02-13 16:15 ` [PATCH 04/19] linux/math64.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 05/19] linux/time.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 06/19] linux/time32.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 07/19] linux/time64.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 08/19] linux/jiffies.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 09/19] linux/ktime.h: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 10/19] common: Introduce processor.h Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 11/19] linux/elfnote.h: Replace elf.h with UAPI equivalent Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 12/19] arm64: Introduce asm/common/processor.h Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 13/19] arm64: vdso: Include common headers in the vdso library Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 14/19] arm64: vdso32: " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 15/19] mips: vdso: Enable mips to use common headers Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 16/19] x86: vdso: Enable x86 " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 17/19] arm: vdso: Enable arm " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 18/19] lib: vdso: Enable " Vincenzo Frascino
2020-02-13 16:16 ` [PATCH 19/19] arm64: vdso32: Enable Clang Compilation Vincenzo Frascino
2020-02-13 18:44   ` Nathan Chancellor
2020-02-17 12:26     ` Vincenzo Frascino
2020-02-17 16:46       ` Will Deacon
2020-02-17 22:39         ` Ard Biesheuvel
2020-02-18 13:03           ` Vincenzo Frascino

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