linux-kernel - [PATCH] kbuild: remove unused OBJSIZE

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Date:   Fri, 23 Oct 2020 13:57:32 +0200
From:   Vasily Gorbik <gor@...ux.ibm.com>
To:     Masahiro Yamada <masahiroy@...nel.org>
Cc:     Nathan Chancellor <natechancellor@...il.com>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Michal Marek <michal.lkml@...kovi.net>,
        Jonathan Corbet <corbet@....net>, linux-kbuild@...r.kernel.org,
        clang-built-linux@...glegroups.com, linux-doc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] kbuild: remove unused OBJSIZE

The "size" tool has been solely used by s390 to enforce .bss section usage
restrictions in early startup code. Since commit 980d5f9ab36b ("s390/boot:
enable .bss section for compressed kernel") and commit 2e83e0eb85ca
("s390: clean .bss before running uncompressed kernel") these restrictions
have been lifted for the decompressor and uncompressed kernel and the
size tool is now unused.

Signed-off-by: Vasily Gorbik <gor@...ux.ibm.com>
---
 Documentation/kbuild/llvm.rst | 5 ++---
 Makefile                      | 4 +---
 2 files changed, 3 insertions(+), 6 deletions(-)

diff --git a/Documentation/kbuild/llvm.rst b/Documentation/kbuild/llvm.rst
index cf3ca236d2cc..21c847890d03 100644
--- a/Documentation/kbuild/llvm.rst
+++ b/Documentation/kbuild/llvm.rst
@@ -57,9 +57,8 @@ to enable them. ::
 They can be enabled individually. The full list of the parameters: ::
 
 	make CC=clang LD=ld.lld AR=llvm-ar NM=llvm-nm STRIP=llvm-strip \
-	  OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump OBJSIZE=llvm-size \
-	  READELF=llvm-readelf HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar \
-	  HOSTLD=ld.lld
+	  OBJCOPY=llvm-objcopy OBJDUMP=llvm-objdump READELF=llvm-readelf \
+	  HOSTCC=clang HOSTCXX=clang++ HOSTAR=llvm-ar HOSTLD=ld.lld
 
 Currently, the integrated assembler is disabled by default. You can pass
 ``LLVM_IAS=1`` to enable it.
diff --git a/Makefile b/Makefile
index d35a59f98e83..d2123c2c829a 100644
--- a/Makefile
+++ b/Makefile
@@ -433,7 +433,6 @@ NM		= llvm-nm
 OBJCOPY		= llvm-objcopy
 OBJDUMP		= llvm-objdump
 READELF		= llvm-readelf
-OBJSIZE		= llvm-size
 STRIP		= llvm-strip
 else
 CC		= $(CROSS_COMPILE)gcc
@@ -443,7 +442,6 @@ NM		= $(CROSS_COMPILE)nm
 OBJCOPY		= $(CROSS_COMPILE)objcopy
 OBJDUMP		= $(CROSS_COMPILE)objdump
 READELF		= $(CROSS_COMPILE)readelf
-OBJSIZE		= $(CROSS_COMPILE)size
 STRIP		= $(CROSS_COMPILE)strip
 endif
 PAHOLE		= pahole
@@ -509,7 +507,7 @@ KBUILD_LDFLAGS :=
 CLANG_FLAGS :=
 
 export ARCH SRCARCH CONFIG_SHELL BASH HOSTCC KBUILD_HOSTCFLAGS CROSS_COMPILE LD CC
-export CPP AR NM STRIP OBJCOPY OBJDUMP OBJSIZE READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL
+export CPP AR NM STRIP OBJCOPY OBJDUMP READELF PAHOLE RESOLVE_BTFIDS LEX YACC AWK INSTALLKERNEL
 export PERL PYTHON PYTHON3 CHECK CHECKFLAGS MAKE UTS_MACHINE HOSTCXX
 export KGZIP KBZIP2 KLZOP LZMA LZ4 XZ ZSTD
 export KBUILD_HOSTCXXFLAGS KBUILD_HOSTLDFLAGS KBUILD_HOSTLDLIBS LDFLAGS_MODULE
-- 
2.25.4