[PATCH 1/5] perf, tools: Add probing for xed

[Andi Kleen]

From: Andi Kleen <ak@xxxxxxxxxxxxxxx>

Add autoprobing for the xed disassembler library.

Can be downloaded from https://github.com/intelxed/xed

v2: Hide. Require XED=1 to enable. Add XED_DIR
v3: Remove -lxed from probe all. Don't touch FEATURE_DISPLAY.
v4: Move to FEATURE_FLAGS_BASIC
Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx>
---
 tools/build/Makefile.feature   |  4 +++-
 tools/build/feature/Makefile   |  6 +++++-
 tools/build/feature/test-all.c |  5 +++++
 tools/build/feature/test-xed.c |  9 +++++++++
 tools/perf/Makefile.config     | 16 ++++++++++++++++
 tools/perf/Makefile.perf       |  3 +++
 6 files changed, 41 insertions(+), 2 deletions(-)
 create mode 100644 tools/build/feature/test-xed.c

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index e3fb5ecbdcb6..c5012b8a49fe 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -63,7 +63,8 @@ FEATURE_TESTS_BASIC :=                  \
         lzma                            \
         get_cpuid                       \
         bpf                             \
-        sdt
+        sdt				\
+        xed
 
 # FEATURE_TESTS_BASIC + FEATURE_TESTS_EXTRA is the complete list
 # of all feature tests
@@ -140,6 +141,7 @@ ifeq ($(feature-all), 1)
   $(call feature_check,compile-x32)
   $(call feature_check,bionic)
   $(call feature_check,libbabeltrace)
+  $(call feature_check,xed)
 else
   $(foreach feat,$(FEATURE_TESTS),$(call feature_check,$(feat)))
 endif
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index b564a2eea039..4f1aa82b867a 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -48,7 +48,8 @@ FILES=                                          \
          test-get_cpuid.bin                     \
          test-sdt.bin                           \
          test-cxx.bin                           \
-         test-jvmti.bin
+         test-jvmti.bin				\
+         test-xed.bin
 
 FILES := $(addprefix $(OUTPUT),$(FILES))
 
@@ -123,6 +124,9 @@ $(OUTPUT)test-numa_num_possible_cpus.bin:
 $(OUTPUT)test-libunwind.bin:
 	$(BUILD) -lelf
 
+$(OUTPUT)test-xed.bin:
+	$(BUILD) -lxed
+
 $(OUTPUT)test-libunwind-debug-frame.bin:
 	$(BUILD) -lelf
 $(OUTPUT)test-libunwind-x86.bin:
diff --git a/tools/build/feature/test-all.c b/tools/build/feature/test-all.c
index 699e43627397..4a6dd1d1ff49 100644
--- a/tools/build/feature/test-all.c
+++ b/tools/build/feature/test-all.c
@@ -149,6 +149,10 @@
 # include "test-sdt.c"
 #undef main
 
+#define main main_test_xed
+#  include "test-xed.c"
+#endif
+
 int main(int argc, char *argv[])
 {
 	main_test_libpython();
@@ -183,6 +187,7 @@ int main(int argc, char *argv[])
 	main_test_bpf();
 	main_test_libcrypto();
 	main_test_sdt();
+	main_test_xed();
 
 	return 0;
 }
diff --git a/tools/build/feature/test-xed.c b/tools/build/feature/test-xed.c
new file mode 100644
index 000000000000..ef9aebf1559d
--- /dev/null
+++ b/tools/build/feature/test-xed.c
@@ -0,0 +1,9 @@
+#include <xed/xed-interface.h>
+#include <xed/xed-decode.h>
+#include <xed/xed-decoded-inst-api.h>
+
+int main(void)
+{
+	xed_tables_init();
+	return 0;
+}
diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 03cf947755b9..9996027e7a52 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -684,6 +684,22 @@ ifndef NO_ZLIB
   endif
 endif
 
+ifdef XED
+  ifdef XED_DIR
+    FEATURE_CHECK_CFLAGS-xed := -I $(XED_DIR)/include
+    # override for lib64?
+    FEATURE_CHECK_LDFLAGS-xed := -L $(XED_DIR)/lib -lxed
+  else
+    FEATURE_CHECK_CFLAGS-xed :=
+    FEATURE_CHECK_LDFLAGS-xed := -lxed
+  endif
+  $(call feature_check,xed)
+  ifeq ($(feature-xed), 1)
+    EXTLIBS += -lxed
+    $(call detected,CONFIG_XED)
+  endif
+endif
+
 ifndef NO_LZMA
   ifeq ($(feature-lzma), 1)
     CFLAGS += -DHAVE_LZMA_SUPPORT
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index 4da19b6ba94a..f6760309edd3 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -84,6 +84,9 @@ include ../scripts/utilities.mak
 # Define NO_SDT if you do not want to define SDT event in perf tools,
 # note that it doesn't disable SDT scanning support.
 #
+# Define XED=1 to build WITH the XED disassembler for perf script
+# Can also set XED_DIR=/path to set XED directory.
+#
 # Define FEATURES_DUMP to provide features detection dump file
 # and bypass the feature detection
 #
-- 
2.9.3