74 lines
2.6 KiB
Diff
74 lines
2.6 KiB
Diff
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From 36be6e2f197b4abaf0e7c4fe2f525eb56b3f0298 Mon Sep 17 00:00:00 2001
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From: Laura Abbott <labbott@redhat.com>
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Date: Fri, 6 Jul 2018 17:21:01 -0700
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Subject: [PATCHv2 7/7] Kbuild: Use HOST*FLAGS options from the command line
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To: Masahiro Yamada <yamada.masahiro@socionext.com>
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To: Josh Poimboeuf <jpoimboe@redhat.com>
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To: Jiri Olsa <jolsa@kernel.org>
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Cc: linux-kbuild@vger.kernel.org
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Cc: linux-kernel@vger.kernel.org
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Cc: Robin Jarry <robin.jarry@6wind.com>
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Cc: Jonathan Corbet <corbet@lwn.net>
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Cc: linux-doc@vger.kernel.org
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Now that we have the rename in place, reuse the HOST*FLAGS options as
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something that can be set from the command line and included with the
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rest of the flags.
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Signed-off-by: Laura Abbott <labbott@redhat.com>
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---
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v2: Use the correct name for HOSTLDLIBS, update documentation.
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---
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Documentation/kbuild/kbuild.txt | 16 ++++++++++++++++
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Makefile | 9 +++++----
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2 files changed, 21 insertions(+), 4 deletions(-)
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diff --git a/Documentation/kbuild/kbuild.txt b/Documentation/kbuild/kbuild.txt
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index 6c9c69ec3986..9847a5974826 100644
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--- a/Documentation/kbuild/kbuild.txt
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+++ b/Documentation/kbuild/kbuild.txt
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@@ -238,3 +238,19 @@ KBUILD_VMLINUX_LIBS
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All .a "lib" files for vmlinux.
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KBUILD_VMLINUX_INIT, KBUILD_VMLINUX_MAIN, and KBUILD_VMLINUX_LIBS together
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specify all the object files used to link vmlinux.
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+
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+HOSTCFLAGS
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+--------------------------------------------------
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+Additional flags to be passed to $(HOSTCC) when building host programs.
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+
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+HOSTLDFLAGS
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+--------------------------------------------------
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+Additional flags to be passed to $(HOSTLD) when building host programs.
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+
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+HOSTCXXFLAGS
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+--------------------------------------------------
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+Additional flags to be passed to $(HOSTCXX) when building host programs.
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+
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+HOSTLDLIBS
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+--------------------------------------------------
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+Additional libraries to link against when building host programs.
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diff --git a/Makefile b/Makefile
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index 96e34381d9ee..c2ee1d4c12c9 100644
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--- a/Makefile
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+++ b/Makefile
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@@ -360,10 +360,11 @@ HOST_LFS_LIBS := $(shell getconf LFS_LIBS)
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HOSTCC = gcc
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HOSTCXX = g++
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KBUILD_HOSTCFLAGS := -Wall -Wmissing-prototypes -Wstrict-prototypes -O2 \
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- -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS)
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-KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS)
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-KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS)
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-KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS)
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+ -fomit-frame-pointer -std=gnu89 $(HOST_LFS_CFLAGS) \
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+ $(HOSTCFLAGS)
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+KBUILD_HOSTCXXFLAGS := -O2 $(HOST_LFS_CFLAGS) $(HOSTCXXFLAGS)
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+KBUILD_HOSTLDFLAGS := $(HOST_LFS_LDFLAGS) $(HOSTLDFLAGS)
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+KBUILD_HOSTLDLIBS := $(HOST_LFS_LIBS) $(HOSTLDLIBS)
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# Make variables (CC, etc...)
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AS = $(CROSS_COMPILE)as
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--
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2.17.1
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