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Message-Id: <20240807-macos-build-support-v1-9-4cd1ded85694@samsung.com>
Date: Wed, 07 Aug 2024 01:09:23 +0200
From: Daniel Gomez via B4 Relay <devnull+da.gomez.samsung.com@...nel.org>
To: Masahiro Yamada <masahiroy@...nel.org>,
Nathan Chancellor <nathan@...nel.org>, Nicolas Schier <nicolas@...sle.eu>,
Lucas De Marchi <lucas.demarchi@...el.com>,
Thomas Hellström <thomas.hellstrom@...ux.intel.com>,
Rodrigo Vivi <rodrigo.vivi@...el.com>,
Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
William Hubbs <w.d.hubbs@...il.com>, Chris Brannon <chris@...-brannons.com>,
Kirk Reiser <kirk@...sers.ca>,
Samuel Thibault <samuel.thibault@...-lyon.org>,
Paul Moore <paul@...l-moore.com>,
Stephen Smalley <stephen.smalley.work@...il.com>,
Ondrej Mosnacek <omosnace@...hat.com>,
Catalin Marinas <catalin.marinas@....com>, Will Deacon <will@...nel.org>,
Marc Zyngier <maz@...nel.org>, Oliver Upton <oliver.upton@...ux.dev>,
James Morse <james.morse@....com>,
Suzuki K Poulose <suzuki.poulose@....com>,
Zenghui Yu <yuzenghui@...wei.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Jiri Slaby <jirislaby@...nel.org>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Bill Wendling <morbo@...gle.com>, Justin Stitt <justinstitt@...gle.com>
Cc: linux-kernel@...r.kernel.org, linux-kbuild@...r.kernel.org,
intel-xe@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
speakup@...ux-speakup.org, selinux@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, kvmarm@...ts.linux.dev,
linux-serial@...r.kernel.org, llvm@...ts.linux.dev,
Finn Behrens <me@...enk.dev>,
"Daniel Gomez (Samsung)" <d+samsung@...ces.com>, gost.dev@...sung.com,
Daniel Gomez <da.gomez@...sung.com>
Subject: [PATCH 09/12] include: add endian.h support
From: Daniel Gomez <da.gomez@...sung.com>
macOS hosts do not include endian.h header required for gen-hyper
object. Add a copy of the include/endian.h from the GNU C Library
(glibc), version glib-2.40 into include/endian and a copy of bits/
uintn-identity.h into include/endian/bits and update the gen-hyper
Makefile to include the library path.
Remove the following from glibc include/endian.h:
diff --git a/include/endian/endian.h b/include/endian/endian.h
index fd20a2b1985d..f70e07f1d3c6 100644
--- a/include/endian/endian.h
+++ b/include/endian/endian.h
@@ -18,11 +18,6 @@
#ifndef _ENDIAN_H
#define _ENDIAN_H 1
-#include <features.h>
-
-/* Get the definitions of __*_ENDIAN, __BYTE_ORDER, and __FLOAT_WORD_ORDER. */
-#include <bits/endian.h>
-
#ifdef __USE_MISC
# define LITTLE_ENDIAN __LITTLE_ENDIAN
# define BIG_ENDIAN __BIG_ENDIAN
@@ -30,9 +25,6 @@
# define BYTE_ORDER __BYTE_ORDER
#endif
-#if defined __USE_MISC && !defined __ASSEMBLER__
-/* Conversion interfaces. */
-# include <bits/byteswap.h>
# include <bits/uintn-identity.h>
# if __BYTE_ORDER == __LITTLE_ENDIAN
@@ -67,6 +59,5 @@
# define be64toh(x) __uint64_identity (x)
# define le64toh(x) __bswap_64 (x)
# endif
-#endif
#endif /* endian.h */
Remove the following from glibc bits/uintn-identity.h:
diff --git a/include/endian/bits/uintn-identity.h b/include/endian/bits/uintn-identity.h
index 8104070583c7..0310c9d955da 100644
--- a/include/endian/bits/uintn-identity.h
+++ b/include/endian/bits/uintn-identity.h
@@ -23,8 +23,6 @@
#ifndef _BITS_UINTN_IDENTITY_H
#define _BITS_UINTN_IDENTITY_H 1
-#include <bits/types.h>
-
/* These inline functions are to ensure the appropriate type
conversions and associated diagnostics from macros that convert to
a given endianness. */
Signed-off-by: Daniel Gomez <da.gomez@...sung.com>
---
arch/arm64/kvm/hyp/nvhe/Makefile | 2 +-
include/endian/bits/uintn-identity.h | 48 +++++++++++++++++++++++++++
include/endian/endian.h | 63 ++++++++++++++++++++++++++++++++++++
3 files changed, 112 insertions(+), 1 deletion(-)
diff --git a/arch/arm64/kvm/hyp/nvhe/Makefile b/arch/arm64/kvm/hyp/nvhe/Makefile
index 40541c0812bf..1bbe2c2a4aed 100644
--- a/arch/arm64/kvm/hyp/nvhe/Makefile
+++ b/arch/arm64/kvm/hyp/nvhe/Makefile
@@ -15,7 +15,7 @@ ccflags-y += -fno-stack-protector \
$(DISABLE_STACKLEAK_PLUGIN)
hostprogs := gen-hyprel
-HOST_EXTRACFLAGS += -I$(objtree)/include -I$(srctree)/include/elf
+HOST_EXTRACFLAGS += -I$(objtree)/include -I$(srctree)/include/elf -I$(srctree)/include/endian
lib-objs := clear_page.o copy_page.o memcpy.o memset.o
lib-objs := $(addprefix ../../../lib/, $(lib-objs))
diff --git a/include/endian/bits/uintn-identity.h b/include/endian/bits/uintn-identity.h
new file mode 100644
index 000000000000..0310c9d955da
--- /dev/null
+++ b/include/endian/bits/uintn-identity.h
@@ -0,0 +1,48 @@
+/* Inline functions to return unsigned integer values unchanged.
+ Copyright (C) 2017-2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#if !defined _NETINET_IN_H && !defined _ENDIAN_H
+# error "Never use <bits/uintn-identity.h> directly; include <netinet/in.h> or <endian.h> instead."
+#endif
+
+#ifndef _BITS_UINTN_IDENTITY_H
+#define _BITS_UINTN_IDENTITY_H 1
+
+/* These inline functions are to ensure the appropriate type
+ conversions and associated diagnostics from macros that convert to
+ a given endianness. */
+
+static __inline __uint16_t
+__uint16_identity (__uint16_t __x)
+{
+ return __x;
+}
+
+static __inline __uint32_t
+__uint32_identity (__uint32_t __x)
+{
+ return __x;
+}
+
+static __inline __uint64_t
+__uint64_identity (__uint64_t __x)
+{
+ return __x;
+}
+
+#endif /* _BITS_UINTN_IDENTITY_H. */
diff --git a/include/endian/endian.h b/include/endian/endian.h
new file mode 100644
index 000000000000..f70e07f1d3c6
--- /dev/null
+++ b/include/endian/endian.h
@@ -0,0 +1,63 @@
+/* Copyright (C) 1992-2024 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
+
+#ifndef _ENDIAN_H
+#define _ENDIAN_H 1
+
+#ifdef __USE_MISC
+# define LITTLE_ENDIAN __LITTLE_ENDIAN
+# define BIG_ENDIAN __BIG_ENDIAN
+# define PDP_ENDIAN __PDP_ENDIAN
+# define BYTE_ORDER __BYTE_ORDER
+#endif
+
+# include <bits/uintn-identity.h>
+
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define htobe16(x) __bswap_16 (x)
+# define htole16(x) __uint16_identity (x)
+# define be16toh(x) __bswap_16 (x)
+# define le16toh(x) __uint16_identity (x)
+
+# define htobe32(x) __bswap_32 (x)
+# define htole32(x) __uint32_identity (x)
+# define be32toh(x) __bswap_32 (x)
+# define le32toh(x) __uint32_identity (x)
+
+# define htobe64(x) __bswap_64 (x)
+# define htole64(x) __uint64_identity (x)
+# define be64toh(x) __bswap_64 (x)
+# define le64toh(x) __uint64_identity (x)
+
+# else
+# define htobe16(x) __uint16_identity (x)
+# define htole16(x) __bswap_16 (x)
+# define be16toh(x) __uint16_identity (x)
+# define le16toh(x) __bswap_16 (x)
+
+# define htobe32(x) __uint32_identity (x)
+# define htole32(x) __bswap_32 (x)
+# define be32toh(x) __uint32_identity (x)
+# define le32toh(x) __bswap_32 (x)
+
+# define htobe64(x) __uint64_identity (x)
+# define htole64(x) __bswap_64 (x)
+# define be64toh(x) __uint64_identity (x)
+# define le64toh(x) __bswap_64 (x)
+# endif
+
+#endif /* endian.h */
--
Git-146)
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