From: Randy Dunlap <rdunlap@infradead.org>
To: linux-kernel@vger.kernel.org
Cc: Randy Dunlap <rdunlap@infradead.org>,
Yoshinori Sato <ysato@users.sourceforge.jp>,
Rich Felker <dalias@libc.org>,
linux-sh@vger.kernel.org,
John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>,
Geert Uytterhoeven <geert+renesas@glider.be>
Subject: [PATCH 2/3 v2] sh: define __BIG_ENDIAN for math-emu
Date: Sun, 27 Jun 2021 15:05:43 -0700 [thread overview]
Message-ID: <20210627220544.8757-3-rdunlap@infradead.org> (raw)
In-Reply-To: <20210627220544.8757-1-rdunlap@infradead.org>
Fix this by defining both ENDIAN macros in
<asm/sfp-machine.h> so that they can be utilized in
<math-emu/soft-fp.h> according to the latter's comment:
/* Allow sfp-machine to have its own byte order definitions. */
(This is what is done in arch/nds32/include/asm/sfp-machine.h.)
This placates these build warnings:
In file included from ../arch/sh/math-emu/math.c:23:
../include/math-emu/single.h:50:21: warning: "__BIG_ENDIAN" is not defined, evaluates to 0 [-Wundef]
50 | #if __BYTE_ORDER == __BIG_ENDIAN
In file included from ../arch/sh/math-emu/math.c:24:
../include/math-emu/double.h:59:21: warning: "__BIG_ENDIAN" is not defined, evaluates to 0 [-Wundef]
59 | #if __BYTE_ORDER == __BIG_ENDIAN
Fixes: 4b565680d163 ("sh: math-emu support")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: linux-sh@vger.kernel.org
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
---
v2: use same preprocessor method that nds32 does;
add Geert's Reviewed-by;
renumber patches;
add more Cc's;
arch/sh/include/asm/sfp-machine.h | 8 ++++++++
1 file changed, 8 insertions(+)
--- linux-next-20210625.orig/arch/sh/include/asm/sfp-machine.h
+++ linux-next-20210625/arch/sh/include/asm/sfp-machine.h
@@ -13,6 +13,14 @@
#ifndef _SFP_MACHINE_H
#define _SFP_MACHINE_H
+#ifdef __BIG_ENDIAN__
+#define __BYTE_ORDER __BIG_ENDIAN
+#define __LITTLE_ENDIAN 0
+#else
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#define __BIG_ENDIAN 0
+#endif
+
#define _FP_W_TYPE_SIZE 32
#define _FP_W_TYPE unsigned long
#define _FP_WS_TYPE signed long
next prev parent reply other threads:[~2021-06-27 22:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-06-27 22:05 [PATCH 0/3 v2] sh: fixes for various build and kconfig warnings Randy Dunlap
2021-06-27 22:05 ` [PATCH 1/3 v2] sh: fix kconfig unmet dependency warning for FRAME_POINTER Randy Dunlap
2021-06-28 8:44 ` Geert Uytterhoeven
2021-06-30 9:32 ` John Paul Adrian Glaubitz
2021-06-27 22:05 ` Randy Dunlap [this message]
2021-06-30 9:35 ` [PATCH 2/3 v2] sh: define __BIG_ENDIAN for math-emu John Paul Adrian Glaubitz
2021-06-27 22:05 ` [PATCH 3/3 v2] sh: fix READ/WRITE redefinition warnings Randy Dunlap
2021-06-28 8:46 ` Geert Uytterhoeven
2021-06-30 9:36 ` John Paul Adrian Glaubitz
2021-06-30 9:42 ` Geert Uytterhoeven
2021-06-30 19:33 ` Randy Dunlap
2021-06-30 19:36 ` John Paul Adrian Glaubitz
2021-07-01 8:41 ` Geert Uytterhoeven
2021-07-01 11:57 ` Arnd Bergmann
2021-07-02 9:25 ` John Paul Adrian Glaubitz
2021-06-27 22:26 ` [PATCH 0/3 v2] sh: fixes for various build and kconfig warnings John Paul Adrian Glaubitz
2021-06-27 22:30 ` Randy Dunlap
2021-06-27 22:36 ` John Paul Adrian Glaubitz
2021-06-29 21:49 ` John Paul Adrian Glaubitz
2021-09-08 20:19 ` Randy Dunlap
2021-09-09 8:25 ` John Paul Adrian Glaubitz
2021-09-09 9:08 ` Daniel Palmer
2021-09-12 1:57 ` Rich Felker
2021-09-12 10:36 ` John Paul Adrian Glaubitz
2021-09-12 17:25 ` Rob Landley
2021-09-22 2:45 ` Rich Felker
2021-09-23 14:37 ` John Paul Adrian Glaubitz
2021-10-08 18:29 ` John Paul Adrian Glaubitz
2021-09-13 11:53 ` Daniel Palmer
2021-09-09 17:44 ` Rob Landley
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