linux-kernel - [PATCH] sparc: vdso: fix build error of vdso32

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Message-Id: <20190922113436.10396-1-yamada.masahiro@socionext.com>
Date:   Sun, 22 Sep 2019 20:34:36 +0900
From:   Masahiro Yamada <yamada.masahiro@...ionext.com>
To:     "David S . Miller" <davem@...emloft.net>,
        sparclinux@...r.kernel.org
Cc:     Anatoly Pugachev <matorola@...il.com>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org,
        "ndesaulniers@...gle.com" <ndesaulniers@...gle.com>
Subject: [PATCH] sparc: vdso: fix build error of vdso32

Since commit 54b8ae66ae1a ("kbuild: change *FLAGS_<basetarget>.o to
take the path relative to $(obj)"), sparc allmodconfig fails to build
as follows:

  CC      arch/sparc/vdso/vdso32/vclock_gettime.o
unrecognized e_machine 18 arch/sparc/vdso/vdso32/vclock_gettime.o
arch/sparc/vdso/vdso32/vclock_gettime.o: failed

The cause of the breakage is that -pg flag not being dropped.

The vdso32 files are located in the vdso32/ subdirectory, but I missed
to update the Makefile.

Fixes: 54b8ae66ae1a ("kbuild: change *FLAGS_<basetarget>.o to take the path relative to $(obj)")
Reported-by: Anatoly Pugachev <matorola@...il.com>
Signed-off-by: Masahiro Yamada <yamada.masahiro@...ionext.com>
---

 arch/sparc/vdso/Makefile | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/arch/sparc/vdso/Makefile b/arch/sparc/vdso/Makefile
index 324a23947585..399bc22b1cf8 100644
--- a/arch/sparc/vdso/Makefile
+++ b/arch/sparc/vdso/Makefile
@@ -67,12 +67,14 @@ $(vobjs): KBUILD_CFLAGS := $(filter-out $(GCC_PLUGINS_CFLAGS) $(SPARC_REG_CFLAGS
 #
 CFLAGS_REMOVE_vdso-note.o = -pg
 CFLAGS_REMOVE_vclock_gettime.o = -pg
+CFLAGS_REMOVE_vdso32/vdso-note.o = -pg
+CFLAGS_REMOVE_vdso32/vclock_gettime.o = -pg
 
 $(obj)/%.so: OBJCOPYFLAGS := -S
 $(obj)/%.so: $(obj)/%.so.dbg FORCE
 	$(call if_changed,objcopy)
 
-CPPFLAGS_vdso32.lds = $(CPPFLAGS_vdso.lds)
+CPPFLAGS_vdso32/vdso32.lds = $(CPPFLAGS_vdso.lds)
 VDSO_LDFLAGS_vdso32.lds = -m elf32_sparc -soname linux-gate.so.1
 
 #This makes sure the $(obj) subdirectory exists even though vdso32/
-- 
2.17.1