From af883e88e16fa7a898ec5d253c3a78659a26555e Mon Sep 17 00:00:00 2001
From: Alexander Alekhin <alexander.alekhin@intel.com>
Date: Fri, 31 Aug 2018 17:28:27 +0300
Subject: [PATCH] ts: support QEMU launcher

---
 modules/ts/misc/run.py       |  3 +++
 modules/ts/misc/run_suite.py | 12 ++++++++++--
 2 files changed, 13 insertions(+), 2 deletions(-)

diff --git a/modules/ts/misc/run.py b/modules/ts/misc/run.py
index 74b353a532..29c0aa6b90 100755
--- a/modules/ts/misc/run.py
+++ b/modules/ts/misc/run.py
@@ -40,6 +40,9 @@ if __name__ == "__main__":
     parser.add_argument("--valgrind_supp", metavar="FILE", action='append', help="Path to valgrind suppression file (example: --valgrind_supp opencv/platforms/scripts/valgrind.supp)")
     parser.add_argument("--valgrind_opt", metavar="OPT", action="append", default=[], help="Add command line option to valgrind (example: --valgrind_opt=--leak-check=full)")
 
+    # QEMU
+    parser.add_argument("--qemu", default="", help="Specify qemu binary and base parameters")
+
     # Android
     parser.add_argument("--android", action="store_true", default=False, help="Android: force all tests to run on device")
     parser.add_argument("--android_sdk", metavar="PATH", help="Android: path to SDK to use adb and aapt tools")
diff --git a/modules/ts/misc/run_suite.py b/modules/ts/misc/run_suite.py
index 947db1e2b5..c7103a6263 100644
--- a/modules/ts/misc/run_suite.py
+++ b/modules/ts/misc/run_suite.py
@@ -77,7 +77,7 @@ class TestSuite(object):
             return False
         return os.access(fullpath, os.X_OK)
 
-    def wrapInValgrind(self, cmd=[]):
+    def wrapCommand(self, cmd, env):
         if self.options.valgrind:
             res = ['valgrind']
             supp = self.options.valgrind_supp or []
@@ -89,6 +89,14 @@ class TestSuite(object):
             res.extend(self.options.valgrind_opt)
             has_gtest_filter = next((True for x in cmd if x.startswith('--gtest_filter=')), False)
             return res + cmd + ([longTestFilter(LONG_TESTS_DEBUG_VALGRIND)] if not has_gtest_filter else [])
+        elif self.options.qemu:
+            import shlex
+            res = shlex.split(self.options.qemu)
+            for (name, value) in [entry for entry in os.environ.items() if entry[0].startswith('OPENCV') and not entry[0] in env]:
+                res += ['-E', '"{}={}"'.format(name, value)]
+            for (name, value) in env.items():
+                res += ['-E', '"{}={}"'.format(name, value)]
+            return res + ['--'] + cmd
         return cmd
 
     def tryCommand(self, cmd, workingDir):
@@ -125,7 +133,6 @@ class TestSuite(object):
         else:
             if isColorEnabled(args):
                 args.append("--gtest_color=yes")
-            cmd = self.wrapInValgrind([exe] + args)
             env = {}
             if not self.options.valgrind and self.options.trace:
                 env['OPENCV_TRACE'] = '1'
@@ -133,6 +140,7 @@ class TestSuite(object):
                 env['OPENCV_TRACE_SYNC_OPENCL'] = '1'
             tempDir = TempEnvDir('OPENCV_TEMP_PATH', "__opencv_temp.")
             tempDir.init()
+            cmd = self.wrapCommand([exe] + args, env)
             log.warning("Run: %s" % " ".join(cmd))
             ret = execute(cmd, cwd=workingDir, env=env)
             try: