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authorMasahiro Yamada <masahiroy@kernel.org>2022-09-25 03:19:15 +0900
committerMasahiro Yamada <masahiroy@kernel.org>2022-10-02 18:06:03 +0900
commitce697ccee1a8661da4e23fbe5f3d45d8d6922c20 (patch)
tree3e4a66982f38b33d4c17b13a04161eb764bf6220 /arch/xtensa
parentkbuild: use obj-y instead extra-y for objects placed at the head (diff)
downloadlinux-dev-ce697ccee1a8661da4e23fbe5f3d45d8d6922c20.tar.xz
linux-dev-ce697ccee1a8661da4e23fbe5f3d45d8d6922c20.zip
kbuild: remove head-y syntax
Kbuild puts the objects listed in head-y at the head of vmlinux. Conventionally, we do this for head*.S, which contains the kernel entry point. A counter approach is to control the section order by the linker script. Actually, the code marked as __HEAD goes into the ".head.text" section, which is placed before the normal ".text" section. I do not know if both of them are needed. From the build system perspective, head-y is not mandatory. If you can achieve the proper code placement by the linker script only, it would be cleaner. I collected the current head-y objects into head-object-list.txt. It is a whitelist. My hope is it will be reduced in the long run. Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Nicolas Schier <nicolas@fjasle.eu>
Diffstat (limited to 'arch/xtensa')
-rw-r--r--arch/xtensa/Makefile2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/xtensa/Makefile b/arch/xtensa/Makefile
index 5097caa7bf0c..bfd8e433ed62 100644
--- a/arch/xtensa/Makefile
+++ b/arch/xtensa/Makefile
@@ -55,8 +55,6 @@ KBUILD_CPPFLAGS += $(patsubst %,-I$(srctree)/%include,$(vardirs) $(plfdirs))
KBUILD_DEFCONFIG := iss_defconfig
-head-y := arch/xtensa/kernel/head.o
-
libs-y += arch/xtensa/lib/
boot := arch/xtensa/boot