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Message-Id: <55b486b88f6bcd0c9a2a04b34f964860c8390ca8.1567118001.git.jpoimboe@redhat.com>
Date:   Thu, 29 Aug 2019 17:41:18 -0500
From:   Josh Poimboeuf <jpoimboe@...hat.com>
To:     x86@...nel.org
Cc:     linux-kernel@...r.kernel.org,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...nel.org>,
        Arnaldo Carvalho de Melo <acme@...nel.org>,
        Jiri Olsa <jolsa@...hat.com>,
        Masami Hiramatsu <mhiramat@...nel.org>,
        Adrian Hunter <adrian.hunter@...el.com>
Subject: [PATCH 1/4] objtool: Move x86 insn decoder to a common location

The kernel tree has three identical copies of the x86 instruction
decoder.  Two of them are in the tools subdir.

The tools subdir is supposed to be completely standalone and separate
from the kernel.  So having at least one copy of the kernel decoder in
the tools subdir is unavoidable.  However, we don't need *two* of them.

Move objtool's copy of the decoder to a shared location, so that perf
will also be able to use it.

Signed-off-by: Josh Poimboeuf <jpoimboe@...hat.com>
---
 tools/{objtool => }/arch/x86/include/asm/inat.h      |  0
 .../{objtool => }/arch/x86/include/asm/inat_types.h  |  0
 tools/{objtool => }/arch/x86/include/asm/insn.h      |  0
 tools/{objtool => }/arch/x86/include/asm/orc_types.h |  0
 tools/{objtool => }/arch/x86/lib/inat.c              |  0
 tools/{objtool => }/arch/x86/lib/insn.c              |  0
 tools/{objtool => }/arch/x86/lib/x86-opcode-map.txt  |  0
 .../arch/x86/tools/gen-insn-attr-x86.awk             |  0
 tools/objtool/Makefile                               |  4 ++--
 tools/objtool/arch/x86/Build                         |  4 ++--
 tools/objtool/arch/x86/decode.c                      |  4 ++--
 tools/objtool/sync-check.sh                          | 12 ++++++------
 12 files changed, 12 insertions(+), 12 deletions(-)
 rename tools/{objtool => }/arch/x86/include/asm/inat.h (100%)
 rename tools/{objtool => }/arch/x86/include/asm/inat_types.h (100%)
 rename tools/{objtool => }/arch/x86/include/asm/insn.h (100%)
 rename tools/{objtool => }/arch/x86/include/asm/orc_types.h (100%)
 rename tools/{objtool => }/arch/x86/lib/inat.c (100%)
 rename tools/{objtool => }/arch/x86/lib/insn.c (100%)
 rename tools/{objtool => }/arch/x86/lib/x86-opcode-map.txt (100%)
 rename tools/{objtool => }/arch/x86/tools/gen-insn-attr-x86.awk (100%)

diff --git a/tools/objtool/arch/x86/include/asm/inat.h b/tools/arch/x86/include/asm/inat.h
similarity index 100%
rename from tools/objtool/arch/x86/include/asm/inat.h
rename to tools/arch/x86/include/asm/inat.h
diff --git a/tools/objtool/arch/x86/include/asm/inat_types.h b/tools/arch/x86/include/asm/inat_types.h
similarity index 100%
rename from tools/objtool/arch/x86/include/asm/inat_types.h
rename to tools/arch/x86/include/asm/inat_types.h
diff --git a/tools/objtool/arch/x86/include/asm/insn.h b/tools/arch/x86/include/asm/insn.h
similarity index 100%
rename from tools/objtool/arch/x86/include/asm/insn.h
rename to tools/arch/x86/include/asm/insn.h
diff --git a/tools/objtool/arch/x86/include/asm/orc_types.h b/tools/arch/x86/include/asm/orc_types.h
similarity index 100%
rename from tools/objtool/arch/x86/include/asm/orc_types.h
rename to tools/arch/x86/include/asm/orc_types.h
diff --git a/tools/objtool/arch/x86/lib/inat.c b/tools/arch/x86/lib/inat.c
similarity index 100%
rename from tools/objtool/arch/x86/lib/inat.c
rename to tools/arch/x86/lib/inat.c
diff --git a/tools/objtool/arch/x86/lib/insn.c b/tools/arch/x86/lib/insn.c
similarity index 100%
rename from tools/objtool/arch/x86/lib/insn.c
rename to tools/arch/x86/lib/insn.c
diff --git a/tools/objtool/arch/x86/lib/x86-opcode-map.txt b/tools/arch/x86/lib/x86-opcode-map.txt
similarity index 100%
rename from tools/objtool/arch/x86/lib/x86-opcode-map.txt
rename to tools/arch/x86/lib/x86-opcode-map.txt
diff --git a/tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk b/tools/arch/x86/tools/gen-insn-attr-x86.awk
similarity index 100%
rename from tools/objtool/arch/x86/tools/gen-insn-attr-x86.awk
rename to tools/arch/x86/tools/gen-insn-attr-x86.awk
diff --git a/tools/objtool/Makefile b/tools/objtool/Makefile
index 88158239622b..8c9b9adc67ef 100644
--- a/tools/objtool/Makefile
+++ b/tools/objtool/Makefile
@@ -33,7 +33,7 @@ all: $(OBJTOOL)
 
 INCLUDES := -I$(srctree)/tools/include \
 	    -I$(srctree)/tools/arch/$(HOSTARCH)/include/uapi \
-	    -I$(srctree)/tools/objtool/arch/$(ARCH)/include
+	    -I$(srctree)/tools/arch/$(ARCH)/include
 WARNINGS := $(EXTRA_WARNINGS) -Wno-switch-default -Wno-switch-enum -Wno-packed
 CFLAGS   += -Werror $(WARNINGS) $(KBUILD_HOSTCFLAGS) -g $(INCLUDES) $(LIBELF_FLAGS)
 LDFLAGS  += $(LIBELF_LIBS) $(LIBSUBCMD) $(KBUILD_HOSTLDFLAGS)
@@ -60,7 +60,7 @@ $(LIBSUBCMD): fixdep FORCE
 clean:
 	$(call QUIET_CLEAN, objtool) $(RM) $(OBJTOOL)
 	$(Q)find $(OUTPUT) -name '*.o' -delete -o -name '\.*.cmd' -delete -o -name '\.*.d' -delete
-	$(Q)$(RM) $(OUTPUT)arch/x86/lib/inat-tables.c $(OUTPUT)fixdep
+	$(Q)$(RM) $(OUTPUT)arch/x86/inat-tables.c $(OUTPUT)fixdep
 
 FORCE:
 
diff --git a/tools/objtool/arch/x86/Build b/tools/objtool/arch/x86/Build
index b998412c017d..7c5004008e97 100644
--- a/tools/objtool/arch/x86/Build
+++ b/tools/objtool/arch/x86/Build
@@ -1,7 +1,7 @@
 objtool-y += decode.o
 
-inat_tables_script = arch/x86/tools/gen-insn-attr-x86.awk
-inat_tables_maps = arch/x86/lib/x86-opcode-map.txt
+inat_tables_script = ../arch/x86/tools/gen-insn-attr-x86.awk
+inat_tables_maps = ../arch/x86/lib/x86-opcode-map.txt
 
 $(OUTPUT)arch/x86/lib/inat-tables.c: $(inat_tables_script) $(inat_tables_maps)
 	$(call rule_mkdir)
diff --git a/tools/objtool/arch/x86/decode.c b/tools/objtool/arch/x86/decode.c
index 0567c47a91b1..a62e032863a8 100644
--- a/tools/objtool/arch/x86/decode.c
+++ b/tools/objtool/arch/x86/decode.c
@@ -8,8 +8,8 @@
 
 #define unlikely(cond) (cond)
 #include <asm/insn.h>
-#include "lib/inat.c"
-#include "lib/insn.c"
+#include "../../../arch/x86/lib/inat.c"
+#include "../../../arch/x86/lib/insn.c"
 
 #include "../../elf.h"
 #include "../../arch.h"
diff --git a/tools/objtool/sync-check.sh b/tools/objtool/sync-check.sh
index 1470e74e9d66..66f1575b80f3 100755
--- a/tools/objtool/sync-check.sh
+++ b/tools/objtool/sync-check.sh
@@ -2,21 +2,21 @@
 # SPDX-License-Identifier: GPL-2.0
 
 FILES='
-arch/x86/lib/insn.c
-arch/x86/lib/inat.c
-arch/x86/lib/x86-opcode-map.txt
-arch/x86/tools/gen-insn-attr-x86.awk
-arch/x86/include/asm/insn.h
 arch/x86/include/asm/inat.h
 arch/x86/include/asm/inat_types.h
+arch/x86/include/asm/insn.h
 arch/x86/include/asm/orc_types.h
+arch/x86/lib/inat.c
+arch/x86/lib/insn.c
+arch/x86/lib/x86-opcode-map.txt
+arch/x86/tools/gen-insn-attr-x86.awk
 '
 
 check()
 {
 	local file=$1
 
-	diff $file ../../$file > /dev/null ||
+	diff ../$file ../../$file > /dev/null ||
 		echo "Warning: synced file at 'tools/objtool/$file' differs from latest kernel version at '$file'"
 }
 
-- 
2.20.1

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