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| author | Masahiro Yamada <masahiroy@kernel.org> | 2022-09-25 03:19:15 +0900 |
|---|---|---|
| committer | Masahiro Yamada <masahiroy@kernel.org> | 2022-10-02 18:06:03 +0900 |
| commit | ce697ccee1a8661da4e23fbe5f3d45d8d6922c20 (patch) | |
| tree | 3e4a66982f38b33d4c17b13a04161eb764bf6220 /arch/microblaze | |
| parent | 3216484550610470013b7ce1c9ed272da0a74589 (diff) | |
| download | linux-ce697ccee1a8661da4e23fbe5f3d45d8d6922c20.tar.bz2 | |
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/microblaze')
| -rw-r--r-- | arch/microblaze/Makefile | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/arch/microblaze/Makefile b/arch/microblaze/Makefile index 1826d9ce4459..3f8a86c4336a 100644 --- a/arch/microblaze/Makefile +++ b/arch/microblaze/Makefile @@ -48,7 +48,6 @@ CPUFLAGS-1 += $(call cc-option,-mcpu=v$(CPU_VER)) # r31 holds current when in kernel mode KBUILD_CFLAGS += -ffixed-r31 $(CPUFLAGS-y) $(CPUFLAGS-1) $(CPUFLAGS-2) -head-y := arch/microblaze/kernel/head.o libs-y += arch/microblaze/lib/ boot := arch/microblaze/boot |