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From: Arnd Bergmann <arnd@kernel.org>
To: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Ard Biesheuvel <ardb@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	llvm@lists.linux.dev
Subject: [PATCH 01/14] ARM: RiscPC needs older gcc version
Date: Tue, 28 Sep 2021 17:41:30 +0200	[thread overview]
Message-ID: <20210928154143.2106903-2-arnd@kernel.org> (raw)
In-Reply-To: <20210928154143.2106903-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

Attempting to build mach-rpc with gcc-9 or higher, or with any version
of clang results in a build failure, like:

arm-linux-gnueabi-gcc-11.1.0: error: unrecognized -march target: armv3m
arm-linux-gnueabi-gcc-11.1.0: note: valid arguments are: armv4 armv4t armv5t armv5te armv5tej armv6 armv6j armv6k armv6z armv6kz armv6zk armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a armv8.1-a armv8.2-a armv8.3-a armv8.4-a armv8.5-a armv8.6-a armv8-m.base armv8-m.main armv8-r armv8.1-m.main iwmmxt iwmmxt2; did you mean 'armv4'?

Handle this in Kconfig so we don't run into this with randconfig
builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc196421b2ce..12a0bd4b315d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -431,7 +431,7 @@ config ARCH_PXA
 
 config ARCH_RPC
 	bool "RiscPC"
-	depends on MMU
+	depends on !CC_IS_CLANG || GCC_VERSION < 90100
 	select ARCH_ACORN
 	select ARCH_MAY_HAVE_PC_FDC
 	select ARCH_SPARSEMEM_ENABLE
-- 
2.29.2


WARNING: multiple messages have this Message-ID (diff)
From: Arnd Bergmann <arnd@kernel.org>
To: Russell King <linux@armlinux.org.uk>
Cc: linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Ard Biesheuvel <ardb@kernel.org>,
	Linus Walleij <linus.walleij@linaro.org>,
	Nathan Chancellor <nathan@kernel.org>,
	Nick Desaulniers <ndesaulniers@google.com>,
	llvm@lists.linux.dev
Subject: [PATCH 01/14] ARM: RiscPC needs older gcc version
Date: Tue, 28 Sep 2021 17:41:30 +0200	[thread overview]
Message-ID: <20210928154143.2106903-2-arnd@kernel.org> (raw)
In-Reply-To: <20210928154143.2106903-1-arnd@kernel.org>

From: Arnd Bergmann <arnd@arndb.de>

Attempting to build mach-rpc with gcc-9 or higher, or with any version
of clang results in a build failure, like:

arm-linux-gnueabi-gcc-11.1.0: error: unrecognized -march target: armv3m
arm-linux-gnueabi-gcc-11.1.0: note: valid arguments are: armv4 armv4t armv5t armv5te armv5tej armv6 armv6j armv6k armv6z armv6kz armv6zk armv6t2 armv6-m armv6s-m armv7 armv7-a armv7ve armv7-r armv7-m armv7e-m armv8-a armv8.1-a armv8.2-a armv8.3-a armv8.4-a armv8.5-a armv8.6-a armv8-m.base armv8-m.main armv8-r armv8.1-m.main iwmmxt iwmmxt2; did you mean 'armv4'?

Handle this in Kconfig so we don't run into this with randconfig
builds.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
 arch/arm/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index fc196421b2ce..12a0bd4b315d 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -431,7 +431,7 @@ config ARCH_PXA
 
 config ARCH_RPC
 	bool "RiscPC"
-	depends on MMU
+	depends on !CC_IS_CLANG || GCC_VERSION < 90100
 	select ARCH_ACORN
 	select ARCH_MAY_HAVE_PC_FDC
 	select ARCH_SPARSEMEM_ENABLE
-- 
2.29.2


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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-09-28 15:42 UTC|newest]

Thread overview: 56+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-09-28 15:41 [PATCH 00/14] ARM: randconfig build fixes Arnd Bergmann
2021-09-28 15:41 ` Arnd Bergmann
2021-09-28 15:41 ` Arnd Bergmann [this message]
2021-09-28 15:41   ` [PATCH 01/14] ARM: RiscPC needs older gcc version Arnd Bergmann
2021-09-28 16:03   ` Arnd Bergmann
2021-09-28 16:03     ` Arnd Bergmann
2021-09-29  8:45     ` Arnd Bergmann
2021-09-29  8:45       ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 02/14] ARM: patch: fix BE32 compilation Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 21:33   ` Linus Walleij
2021-09-28 21:33     ` Linus Walleij
2021-09-28 15:41 ` [PATCH 03/14] ARM: remove duplicate memcpy() definition Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 21:39   ` Linus Walleij
2021-09-28 21:39     ` Linus Walleij
2021-09-28 15:41 ` [PATCH 04/14] ARM: kprobes: address gcc -Wempty-body warning Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 05/14] ARM: ARMv7-M uses BE-8, not BE-32 Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 06/14] ARM: disallow CONFIG_THUMB with ARMv4 Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-29 18:52   ` Nick Desaulniers
2021-09-29 18:52     ` Nick Desaulniers
2021-10-06 16:01   ` Ard Biesheuvel
2021-10-06 16:01     ` Ard Biesheuvel
2021-09-28 15:41 ` [PATCH 07/14] ARM: fix link warning with XIP + frame-pointer Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 08/14] ARM: kprobes: fix arch_init_kprobes() prototype Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 09/14] ARM: allow compile-testing without machine record Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 10/14] ARM: only warn about XIP address when not compile testing Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 11/14] ARM: kasan: work around LPAE build warning Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 15:41 ` [PATCH 12/14] ARM: add CONFIG_PHYS_OFFSET default values Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 16:02   ` Nicolas Pitre
2021-09-28 16:02     ` Nicolas Pitre
2021-09-28 21:44   ` Linus Walleij
2021-09-28 21:44     ` Linus Walleij
2021-09-28 15:41 ` [PATCH 13/14] ARM: use .arch directives instead of assembler command line flags Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 17:10   ` Nick Desaulniers
2021-09-28 17:10     ` Nick Desaulniers
2021-09-28 18:32     ` Arnd Bergmann
2021-09-28 18:32       ` Arnd Bergmann
2021-09-29 18:11       ` Nick Desaulniers
2021-09-29 18:11         ` Nick Desaulniers
2022-01-21 22:17   ` Nathan Chancellor
2022-01-21 22:17     ` Nathan Chancellor
2021-09-28 15:41 ` [PATCH 14/14] [RFC] ARM: forbid ftrace with clang and thumb2_kernel Arnd Bergmann
2021-09-28 15:41   ` Arnd Bergmann
2021-09-28 17:20   ` Nick Desaulniers
2021-09-28 17:20     ` Nick Desaulniers

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