From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-pf0-f196.google.com ([209.85.192.196]:33418 "EHLO mail-pf0-f196.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751149AbdFVMjq (ORCPT ); Thu, 22 Jun 2017 08:39:46 -0400 From: Nicholas Piggin Subject: [PATCH v2 1/3] sh: thin archives fix linking Date: Thu, 22 Jun 2017 22:39:27 +1000 Message-Id: <20170622123929.15054-2-npiggin@gmail.com> In-Reply-To: <20170622123929.15054-1-npiggin@gmail.com> References: <20170622123929.15054-1-npiggin@gmail.com> Sender: linux-kbuild-owner@vger.kernel.org List-ID: To: Masahiro Yamada Cc: Nicholas Piggin , linux-kbuild@vger.kernel.org, Yoshinori Sato , Rich Felker , linux-sh@vger.kernel.org The VDSO symbols can't be linked into built-in.o when building with thin archives, so change this to linking a new object file that is included into the built-in.o. Cc: Yoshinori Sato Cc: Rich Felker Cc: linux-sh@vger.kernel.org Signed-off-by: Nicholas Piggin --- arch/sh/kernel/vsyscall/Makefile | 16 +++++++++------- 1 file changed, 9 insertions(+), 7 deletions(-) diff --git a/arch/sh/kernel/vsyscall/Makefile b/arch/sh/kernel/vsyscall/Makefile index 8f0ea5fc835c..efc7a6837ef6 100644 --- a/arch/sh/kernel/vsyscall/Makefile +++ b/arch/sh/kernel/vsyscall/Makefile @@ -1,4 +1,4 @@ -obj-y += vsyscall.o vsyscall-syscall.o +obj-y += vsyscall.o vsyscall-syscall.o vsyscall-syms.o $(obj)/vsyscall-syscall.o: \ $(foreach F,trapa,$(obj)/vsyscall-$F.so) @@ -26,11 +26,13 @@ $(obj)/vsyscall-%.so: $(src)/vsyscall.lds $(obj)/vsyscall-%.o FORCE # We also create a special relocatable object that should mirror the symbol # table and layout of the linked DSO. With ld -R we can then refer to # these symbols in the kernel code rather than hand-coded addresses. -extra-y += vsyscall-syms.o -$(obj)/built-in.o: $(obj)/vsyscall-syms.o -$(obj)/built-in.o: ld_flags += -R $(obj)/vsyscall-syms.o - -SYSCFLAGS_vsyscall-syms.o = -r -$(obj)/vsyscall-syms.o: $(src)/vsyscall.lds \ +SYSCFLAGS_vsyscall-dummy.o = -r +$(obj)/vsyscall-dummy.o: $(src)/vsyscall.lds \ $(obj)/vsyscall-trapa.o $(obj)/vsyscall-note.o FORCE $(call if_changed,syscall) + +quiet_cmd_syscall_syms = SYSCALL $@ + cmd_syscall_syms = $(LD) -r -R $(obj)/vsyscall-dummy.o -o $@ + +$(obj)/vsyscall-syms.o: $(obj)/vsyscall-dummy.o + $(call if_changed,syscall_syms) -- 2.11.0