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From: Romain Naour <romain.naour@smile.fr>
To: buildroot@busybox.net
Subject: [Buildroot] [PATCH v2 05/12] linux: override CC for the case CC is not GCC
Date: Sat,  7 Sep 2019 11:40:20 +0200	[thread overview]
Message-ID: <20190907094027.9537-6-romain.naour@smile.fr> (raw)
In-Reply-To: <20190907094027.9537-1-romain.naour@smile.fr>

Until now we provided only CROSS_COMPILE to the kernel
buildsystem to use our GCC cross-compiler. Internally,
the buildsystem defined CC=$(CROSS_COMPILE)gcc.

Since Clang can now be used as cross-compiler, Buildroot
may define in the future TARGET_CC to use clang instead
of GCC.

In order to build the kernel with the selected compiler,
make sure to define CC=$(TARGET_CC) in LINUX_MAKE_FLAGS.

Signed-off-by: Romain Naour <romain.naour@smile.fr>
Cc: Matt Weber <matthew.weber@rockwellcollins.com>
Cc: Valentin Korenblit <valentinkorenblit@gmail.com>
---
 linux/linux.mk | 1 +
 1 file changed, 1 insertion(+)

diff --git a/linux/linux.mk b/linux/linux.mk
index 29d2f0ee69..d381c96d85 100644
--- a/linux/linux.mk
+++ b/linux/linux.mk
@@ -128,6 +128,7 @@ LINUX_MAKE_FLAGS = \
 	ARCH=$(KERNEL_ARCH) \
 	INSTALL_MOD_PATH=$(TARGET_DIR) \
 	CROSS_COMPILE="$(TARGET_CROSS)" \
+	CC="$(TARGET_CC)" \
 	DEPMOD=$(HOST_DIR)/sbin/depmod
 
 ifeq ($(BR2_REPRODUCIBLE),y)
-- 
2.21.0

  parent reply	other threads:[~2019-09-07  9:40 UTC|newest]

Thread overview: 27+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-07  9:40 [Buildroot] [PATCH v2 00/12] Add the support for Clang cross-compiler Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 01/12] package/clang: help host-clang to find our external toolchain Romain Naour
2019-09-09 14:26   ` Matthew Weber
2020-08-29 19:00   ` Arnout Vandecappelle
2019-09-07  9:40 ` [Buildroot] [PATCH v2 02/12] package/llvm: add the version major variable Romain Naour
2020-08-29 19:00   ` Arnout Vandecappelle
2019-09-07  9:40 ` [Buildroot] [PATCH v2 03/12] package/clang: " Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 04/12] package/clang: install a toolchain-wrapper for the host clang cross-compiler Romain Naour
2020-08-29 19:40   ` Arnout Vandecappelle
2019-09-07  9:40 ` Romain Naour [this message]
2020-08-30  7:57   ` [Buildroot] [PATCH v2 05/12] linux: override CC for the case CC is not GCC Arnout Vandecappelle
2019-09-07  9:40 ` [Buildroot] [PATCH v2 06/12] package/meson: use TARGET_{CC, CXX} instead of TARGET_CROSS for cc and cpp Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 07/12] package/busybox: fix applets runtime issue when building with clang cross-compiler Romain Naour
2019-09-09 14:29   ` Matthew Weber
2020-08-29 20:21   ` Arnout Vandecappelle
2020-09-14 19:58     ` Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 08/12] package/clang: add a host entry for clang Romain Naour
2020-08-29 20:34   ` Arnout Vandecappelle
2019-09-07  9:40 ` [Buildroot] [PATCH v2 09/12] package/glibc: use GCC cross-compiler if Clang is used as cross-compiler Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 10/12] core: allow to use Clang " Romain Naour
2019-09-09 14:29   ` Matthew Weber
2020-08-29 21:13   ` Arnout Vandecappelle
2019-09-07  9:40 ` [Buildroot] [PATCH v2 11/12] toolchain: add a warning when Clang is used " Romain Naour
2019-09-07  9:40 ` [Buildroot] [PATCH v2 12/12] linux: don't set -Wno-attribute-alias flag " Romain Naour
2019-09-09 14:28   ` Matthew Weber
2020-08-29 18:53 ` [Buildroot] [PATCH v2 00/12] Add the support for Clang cross-compiler Arnout Vandecappelle
2020-09-14 19:53   ` Romain Naour

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