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Commit 799c4341 authored by Nicholas Piggin's avatar Nicholas Piggin Committed by Masahiro Yamada
Browse files

kbuild: thin archives make default for all archs 



Make thin archives build the default, but keep the config option
to allow exemptions if any breakage can't be quickly solved.

Signed-off-by: default avatarNicholas Piggin <npiggin@gmail.com>
Signed-off-by: default avatarMasahiro Yamada <yamada.masahiro@socionext.com>
parent 827880ec

Documentation/process/changes.rst

+4 −5
Original line number Diff line number Diff line
@@ -31,7 +31,7 @@ you probably needn't concern yourself with isdn4k-utils. 
====================== ===============  ========================================

GNU C                  3.2              gcc --version

GNU make               3.81             make --version

binutils               2.12             ld -v

binutils               2.20             ld -v

util-linux             2.10o            fdformat --version

module-init-tools      0.9.10           depmod -V

e2fsprogs              1.41.4           e2fsck -V
@@ -75,10 +75,9 @@ You will need GNU make 3.81 or later to build the kernel. 
Binutils

--------



Linux on IA-32 has recently switched from using ``as86`` to using ``gas`` for

assembling the 16-bit boot code, removing the need for ``as86`` to compile

your kernel.  This change does, however, mean that you need a recent

release of binutils.

The build system has, as of 4.13, switched to using thin archives (`ar T`)

rather than incremental linking (`ld -r`) for built-in.o intermediate steps.

This requires binutils 2.20 or newer.



Perl

----

arch/Kconfig

+1 −1
Original line number Diff line number Diff line
@@ -511,7 +511,7 @@ config CC_STACKPROTECTOR_STRONG 
endchoice



config THIN_ARCHIVES

	bool

	def_bool y

	help

	  Select this if the architecture wants to use thin archives

	  instead of ld -r to create the built-in.o files.

arch/powerpc/Kconfig

+0 −8
Original line number Diff line number Diff line
@@ -472,14 +472,6 @@ config MPROFILE_KERNEL 
	depends on PPC64 && CPU_LITTLE_ENDIAN

	def_bool !DISABLE_MPROFILE_KERNEL



config USE_THIN_ARCHIVES

	bool "Build the kernel using thin archives"

	default n

	select THIN_ARCHIVES

	help

	  Build the kernel using thin archives.

	  If you're unsure say N.



config IOMMU_HELPER

	def_bool PPC64