[1/8] MIPS: Probe toolchain support of -msym32

Message ID	20240202-llvm-msym32-v1-1-52f0631057d6@flygoat.com (mailing list archive)
State	Accepted
Commit	18ca63a2e23c5e170d2d7552b64b1f5ad019cd9b
Headers	show Received: from wout5-smtp.messagingengine.com (wout5-smtp.messagingengine.com [64.147.123.21]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E22C414D447; Fri, 2 Feb 2024 18:21:56 +0000 (UTC) Feedback-ID: ifd894703:Fastmail From: Jiaxun Yang <jiaxun.yang@flygoat.com> Date: Fri, 02 Feb 2024 18:21:40 +0000 Subject: [PATCH 1/8] MIPS: Probe toolchain support of -msym32 Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20240202-llvm-msym32-v1-1-52f0631057d6@flygoat.com> References: <20240202-llvm-msym32-v1-0-52f0631057d6@flygoat.com> In-Reply-To: <20240202-llvm-msym32-v1-0-52f0631057d6@flygoat.com> To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>, Nathan Chancellor <nathan@kernel.org>, Nick Desaulniers <ndesaulniers@google.com>, Bill Wendling <morbo@google.com>, Justin Stitt <justinstitt@google.com> Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org, llvm@lists.linux.dev, Jiaxun Yang <jiaxun.yang@flygoat.com>
Series	MIPS: Aggregate build fixes \| expand [0/8] MIPS: Aggregate build fixes [1/8] MIPS: Probe toolchain support of -msym32 [2/8] MIPS: Remove cc-option checks for -march=octeon [3/8] MIPS: Fallback CPU -march flag to ISA level if unsupported [4/8] MIPS: BMIPS: Drop unnecessary assembler flag [5/8] MIPS: Loongson64: test for -march=loongson3a cflag [6/8] MIPS: Limit MIPS_MT_SMP support by ISA reversion [7/8] MIPS: Implement microMIPS MT ASE helpers [8/8] MIPS: mipsregs: Set proper ISA level for virt extensions

Message ID

20240202-llvm-msym32-v1-1-52f0631057d6@flygoat.com (mailing list archive)

State

Accepted

Commit

18ca63a2e23c5e170d2d7552b64b1f5ad019cd9b

Headers

Feedback-ID: ifd894703:Fastmail
From: Jiaxun Yang <jiaxun.yang@flygoat.com>
Date: Fri, 02 Feb 2024 18:21:40 +0000
Subject: [PATCH 1/8] MIPS: Probe toolchain support of -msym32
Precedence: bulk
MIME-Version: 1.0
Content-Type: text/plain; charset="utf-8"
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Message-Id: <20240202-llvm-msym32-v1-1-52f0631057d6@flygoat.com>
References: <20240202-llvm-msym32-v1-0-52f0631057d6@flygoat.com>
In-Reply-To: <20240202-llvm-msym32-v1-0-52f0631057d6@flygoat.com>
To: Thomas Bogendoerfer <tsbogend@alpha.franken.de>,
 Nathan Chancellor <nathan@kernel.org>,
 Nick Desaulniers <ndesaulniers@google.com>,
 Bill Wendling <morbo@google.com>, Justin Stitt <justinstitt@google.com>
Cc: linux-mips@vger.kernel.org, linux-kernel@vger.kernel.org,
 llvm@lists.linux.dev, Jiaxun Yang <jiaxun.yang@flygoat.com>

Series

MIPS: Aggregate build fixes | expand

Commit Message

Jiaxun Yang Feb. 2, 2024, 6:21 p.m. UTC

msym32 is not supported by LLVM toolchain.
Workaround by probe toolchain support of msym32 for KBUILD_SYM32
feature.

Link: https://github.com/ClangBuiltLinux/linux/issues/1544
Signed-off-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
---
 arch/mips/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/mips/Makefile b/arch/mips/Makefile
index f49807e1f19b..0888074f4dfe 100644
--- a/arch/mips/Makefile
+++ b/arch/mips/Makefile
@@ -299,7 +299,7 @@  drivers-$(CONFIG_PCI)		+= arch/mips/pci/
 ifdef CONFIG_64BIT
   ifndef KBUILD_SYM32
     ifeq ($(shell expr $(load-y) \< 0xffffffff80000000), 0)
-      KBUILD_SYM32 = y
+      KBUILD_SYM32 = $(call cc-option-yn, -msym32)
     endif
   endif

[1/8] MIPS: Probe toolchain support of -msym32

Commit Message

Patch