perf build: Add build-test for libunwind cross-platforms support

Currently only test for local libunwind. We should check all supported
platforms so we can use them to parse perf.data with callchain info on
different machines.

Signed-off-by: He Kuang <hekuang@huawei.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ekaterina Tumanova <tumanova@linux.vnet.ibm.com>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Stephane Eranian <eranian@google.com>
Cc: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/r/1462866037-30382-4-git-send-email-hekuang@huawei.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

6 files changed, 127 insertions, 0 deletions

diff --git a/tools/build/Makefile.feature b/tools/build/Makefile.feature
index 9f878619077a..7e36e91ef6d4 100644
--- a/tools/build/Makefile.feature
+++ b/tools/build/Makefile.feature
@@ -49,6 +49,10 @@ FEATURE_TESTS_BASIC :=			\
         libslang                        \
         libcrypto                       \
         libunwind                       \
+        libunwind-x86                   \
+        libunwind-x86_64                \
+        libunwind-arm                   \
+        libunwind-aarch64               \
         pthread-attr-setaffinity-np     \
         stackprotector-all              \
         timerfd                         \
diff --git a/tools/build/feature/Makefile b/tools/build/feature/Makefile
index 4ae94dbfdab9..f4fe3bc59b60 100644
--- a/tools/build/feature/Makefile
+++ b/tools/build/feature/Makefile
@@ -27,6 +27,10 @@ FILES=					\
         test-libcrypto.bin              \
         test-libunwind.bin              \
         test-libunwind-debug-frame.bin  \
+        test-libunwind-x86.bin          \
+        test-libunwind-x86_64.bin       \
+        test-libunwind-arm.bin          \
+        test-libunwind-aarch64.bin      \
         test-pthread-attr-setaffinity-np.bin    \
         test-stackprotector-all.bin     \
         test-timerfd.bin                \
@@ -103,6 +107,18 @@ $(OUTPUT)test-libunwind.bin:
 
 $(OUTPUT)test-libunwind-debug-frame.bin:
         $(BUILD) -lelf
+$(OUTPUT)test-libunwind-x86.bin:
+        $(BUILD) -lelf -lunwind-x86
+
+$(OUTPUT)test-libunwind-x86_64.bin:
+        $(BUILD) -lelf -lunwind-x86_64
+
+$(OUTPUT)test-libunwind-arm.bin:
+        $(BUILD) -lelf -lunwind-arm
+
+$(OUTPUT)test-libunwind-aarch64.bin:
+        $(BUILD) -lelf -lunwind-aarch64
+
 
 $(OUTPUT)test-libaudit.bin:
         $(BUILD) -laudit
diff --git a/tools/build/feature/test-libunwind-aarch64.c b/tools/build/feature/test-libunwind-aarch64.c
new file mode 100644
index 000000000000..fc03fb64e8c1
--- /dev/null
+++ b/tools/build/feature/test-libunwind-aarch64.c
@@ -0,0 +1,26 @@
+#include <libunwind-aarch64.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                               unw_word_t ip,
+                                               unw_dyn_info_t *di,
+                                               unw_proc_info_t *pi,
+                                               int need_unwind_info, void *arg);
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+static unw_accessors_t accessors;
+
+int main(void)
+{
+        unw_addr_space_t addr_space;
+
+        addr_space = unw_create_addr_space(&accessors, 0);
+        if (addr_space)
+                return 0;
+
+        unw_init_remote(NULL, addr_space, NULL);
+        dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
+        return 0;
+}
diff --git a/tools/build/feature/test-libunwind-arm.c b/tools/build/feature/test-libunwind-arm.c
new file mode 100644
index 000000000000..632d95ec641f
--- /dev/null
+++ b/tools/build/feature/test-libunwind-arm.c
@@ -0,0 +1,27 @@
+#include <libunwind-arm.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                               unw_word_t ip,
+                                               unw_dyn_info_t *di,
+                                               unw_proc_info_t *pi,
+                                               int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+static unw_accessors_t accessors;
+
+int main(void)
+{
+        unw_addr_space_t addr_space;
+
+        addr_space = unw_create_addr_space(&accessors, 0);
+        if (addr_space)
+                return 0;
+
+        unw_init_remote(NULL, addr_space, NULL);
+        dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
+        return 0;
+}
diff --git a/tools/build/feature/test-libunwind-x86.c b/tools/build/feature/test-libunwind-x86.c
new file mode 100644
index 000000000000..3561edce305e
--- /dev/null
+++ b/tools/build/feature/test-libunwind-x86.c
@@ -0,0 +1,27 @@
+#include <libunwind-x86.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                               unw_word_t ip,
+                                               unw_dyn_info_t *di,
+                                               unw_proc_info_t *pi,
+                                               int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+static unw_accessors_t accessors;
+
+int main(void)
+{
+        unw_addr_space_t addr_space;
+
+        addr_space = unw_create_addr_space(&accessors, 0);
+        if (addr_space)
+                return 0;
+
+        unw_init_remote(NULL, addr_space, NULL);
+        dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
+        return 0;
+}
diff --git a/tools/build/feature/test-libunwind-x86_64.c b/tools/build/feature/test-libunwind-x86_64.c
new file mode 100644
index 000000000000..5add2517b2a1
--- /dev/null
+++ b/tools/build/feature/test-libunwind-x86_64.c
@@ -0,0 +1,27 @@
+#include <libunwind-x86_64.h>
+#include <stdlib.h>
+
+extern int UNW_OBJ(dwarf_search_unwind_table) (unw_addr_space_t as,
+                                               unw_word_t ip,
+                                               unw_dyn_info_t *di,
+                                               unw_proc_info_t *pi,
+                                               int need_unwind_info, void *arg);
+
+
+#define dwarf_search_unwind_table UNW_OBJ(dwarf_search_unwind_table)
+
+static unw_accessors_t accessors;
+
+int main(void)
+{
+        unw_addr_space_t addr_space;
+
+        addr_space = unw_create_addr_space(&accessors, 0);
+        if (addr_space)
+                return 0;
+
+        unw_init_remote(NULL, addr_space, NULL);
+        dwarf_search_unwind_table(addr_space, 0, NULL, NULL, 0, NULL);
+
+        return 0;
+}