From: Leon Romanovsky <leon@kernel.org>
To: Vineet Gupta <vgupta@kernel.org>
Cc: Leon Romanovsky <leonro@nvidia.com>,
linux-snps-arc@lists.infradead.org, linux-kernel@vger.kernel.org
Subject: [PATCH] ARC: build: Try to guess GCC variant of cross compiler
Date: Tue, 3 Dec 2024 14:37:15 +0200 [thread overview]
Message-ID: <00d3173fe207ab9ba85dc974777a6ccb4656b03c.1733229205.git.leonro@nvidia.com> (raw)
From: Leon Romanovsky <leonro@nvidia.com>
ARC GCC compiler is packaged starting from Fedora 39i and the GCC
variant of cross compile tools has arc-linux-gnu- prefix and not
arc-linux-. This is causing that CROSS_COMPILE variable is left unset.
This change allows builds without need to supply CROSS_COMPILE argument
if distro package is used.
Before this change:
$ make -j 128 ARCH=arc W=1 drivers/infiniband/hw/mlx4/
gcc: warning: ‘-mcpu=’ is deprecated; use ‘-mtune=’ or ‘-march=’ instead
gcc: error: unrecognized command-line option ‘-mmedium-calls’
gcc: error: unrecognized command-line option ‘-mlock’
gcc: error: unrecognized command-line option ‘-munaligned-access’
[1] https://packages.fedoraproject.org/pkgs/cross-gcc/gcc-arc-linux-gnu/index.html
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
---
arch/arc/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index 2390dd042e36..fb98478ed1ab 100644
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -6,7 +6,7 @@
KBUILD_DEFCONFIG := haps_hs_smp_defconfig
ifeq ($(CROSS_COMPILE),)
-CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux-)
+CROSS_COMPILE := $(call cc-cross-prefix, arc-linux- arceb-linux- arc-linux-gnu-)
endif
cflags-y += -fno-common -pipe -fno-builtin -mmedium-calls -D__linux__
--
2.47.0
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next reply other threads:[~2024-12-03 12:37 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-12-03 12:37 Leon Romanovsky [this message]
2024-12-13 1:39 ` [PATCH] ARC: build: Try to guess GCC variant of cross compiler Vineet Gupta
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