47 lines
1.4 KiB
Diff
47 lines
1.4 KiB
Diff
|
|
m ad8804326df075a9935a3751f61e5ad1a2865736 Mon Sep 17 00:00:00 2001
|
|
From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
|
|
Date: Sun, 4 Mar 2018 22:31:17 +0100
|
|
Subject: [PATCH] linux: fix passing of host CFLAGS and LDFLAGS
|
|
|
|
We were passing HOSTCFLAGS="$(HOSTCFLAGS)" to Linux. However:
|
|
|
|
- HOSTCFLAGS in Buildroot doesn't exist, and is empty, so this
|
|
assignment never did anything. The name of the variable in
|
|
Buildroot in HOST_CFLAGS.
|
|
|
|
- HOSTCFLAGS in Linux isn't used everywhere, and passing it overrides
|
|
the default HOSTCFLAGS value defined in the main Linux kernel
|
|
Makefile.
|
|
|
|
In addition, there is no way to pass additional host LDFLAGS in the
|
|
Linux kernel build system.
|
|
|
|
Therefore, we simply shoehorn our HOST_CFLAGS and HOST_LDFLAGS while
|
|
passing HOSTCC to the Linux kernel build system. This has been tested
|
|
to work fine with host OpenSSL and host libelf only available in
|
|
$(HOST_DIR).
|
|
|
|
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
|
|
---
|
|
linux/linux.mk | 3 +--
|
|
1 file changed, 1 insertion(+), 2 deletions(-)
|
|
|
|
diff --git a/linux/linux.mk b/linux/linux.mk
|
|
index b724b66..7f318a0 100644
|
|
--- a/linux/linux.mk
|
|
+++ b/linux/linux.mk
|
|
@@ -99,8 +99,7 @@ LINUX_EXTRA_DOWNLOADS += $(ARCH_XTENSA_OVERLAY_URL)
|
|
endif
|
|
|
|
LINUX_MAKE_FLAGS = \
|
|
- HOSTCC="$(HOSTCC)" \
|
|
- HOSTCFLAGS="$(HOSTCFLAGS)" \
|
|
+ HOSTCC="$(HOSTCC) $(HOST_CFLAGS) $(HOST_LDFLAGS)" \
|
|
ARCH=$(KERNEL_ARCH) \
|
|
INSTALL_MOD_PATH=$(TARGET_DIR) \
|
|
CROSS_COMPILE="$(TARGET_CROSS)" \
|
|
--
|
|
2.7.4
|
|
|