linux-kernel - [tip:x86/asm] x86/build/vdso: Remove unused vdso-syms.lds

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Message-ID: <tip-b5722a457b6e5eabd97a7f39c6c2b8e9a623ab15@git.kernel.org>
Date:   Tue, 3 Jul 2018 00:52:12 -0700
From:   tip-bot for Masahiro Yamada <tipbot@...or.com>
To:     linux-tip-commits@...r.kernel.org
Cc:     yamada.masahiro@...ionext.com, mingo@...nel.org, hpa@...or.com,
        peterz@...radead.org, tglx@...utronix.de,
        linux-kernel@...r.kernel.org, jdike@...toit.com, luto@...nel.org,
        richard@....at, torvalds@...ux-foundation.org
Subject: [tip:x86/asm] x86/build/vdso: Remove unused vdso-syms.lds

Commit-ID:  b5722a457b6e5eabd97a7f39c6c2b8e9a623ab15
Gitweb:     https://git.kernel.org/tip/b5722a457b6e5eabd97a7f39c6c2b8e9a623ab15
Author:     Masahiro Yamada <yamada.masahiro@...ionext.com>
AuthorDate: Tue, 3 Jul 2018 10:50:13 +0900
Committer:  Ingo Molnar <mingo@...nel.org>
CommitDate: Tue, 3 Jul 2018 09:20:07 +0200

x86/build/vdso: Remove unused vdso-syms.lds

This file contains symbol values, and was originally linked into
vmlinux, but I have no idea what it was actually used for.

Since the following commit:

  827880ec260b ("x86/um: thin archives build fix")

it is not even linked.  Now it is completely orphan, and no problem has
been reported.  It is a proof that this file was not needed in the
first place.

Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
Acked-by: Richard Weinberger <richard@....at>
Cc: Andy Lutomirski <luto@...nel.org>
Cc: Jeff Dike <jdike@...toit.com>
Cc: Linus Torvalds <torvalds@...ux-foundation.org>
Cc: Peter Zijlstra <peterz@...radead.org>
Cc: Thomas Gleixner <tglx@...utronix.de>
Cc: linux-um@...ts.infradead.org
Link: http://lkml.kernel.org/r/1530582614-5173-2-git-send-email-yamada.masahiro@socionext.com
Signed-off-by: Ingo Molnar <mingo@...nel.org>
---
 arch/x86/um/vdso/.gitignore |  1 -
 arch/x86/um/vdso/Makefile   | 16 ----------------
 2 files changed, 17 deletions(-)

diff --git a/arch/x86/um/vdso/.gitignore b/arch/x86/um/vdso/.gitignore
index 9cac6d072199..f8b69d84238e 100644
--- a/arch/x86/um/vdso/.gitignore
+++ b/arch/x86/um/vdso/.gitignore
@@ -1,2 +1 @@
-vdso-syms.lds
 vdso.lds
diff --git a/arch/x86/um/vdso/Makefile b/arch/x86/um/vdso/Makefile
index b2d6967262b2..822ccdba93ad 100644
--- a/arch/x86/um/vdso/Makefile
+++ b/arch/x86/um/vdso/Makefile
@@ -53,22 +53,6 @@ $(vobjs): KBUILD_CFLAGS += $(CFL)
 CFLAGS_REMOVE_vdso-note.o = -pg -fprofile-arcs -ftest-coverage
 CFLAGS_REMOVE_um_vdso.o = -pg -fprofile-arcs -ftest-coverage
 
-targets += vdso-syms.lds
-extra-$(VDSO64-y)			+= vdso-syms.lds
-
-#
-# Match symbols in the DSO that look like VDSO*; produce a file of constants.
-#
-sed-vdsosym := -e 's/^00*/0/' \
-	-e 's/^\([0-9a-fA-F]*\) . \(VDSO[a-zA-Z0-9_]*\)$$/\2 = 0x\1;/p'
-quiet_cmd_vdsosym = VDSOSYM $@
-define cmd_vdsosym
-	$(NM) $< | LC_ALL=C sed -n $(sed-vdsosym) | LC_ALL=C sort > $@
-endef
-
-$(obj)/%-syms.lds: $(obj)/%.so.dbg FORCE
-	$(call if_changed,vdsosym)
-
 #
 # The DSO images are built using a special linker script.
 #