[PATCH v3 4/4] test: introduce trace-autotest with traces enabled

[Chengwen Feng]

Currently trace_autotest unit test is executed with traces disabled.
This patch introduces trace_autotest unit test with traces enabled,
and the traces file is written to the directory where dpdk-test is
located.

Note: this patch depends on following:
[1] eal: fix segment fault when exit trace
[2] eal: fix trace init fail with long file-prefix

Signed-off-by: Chengwen Feng <fengchengwen at huawei.com>
---
 app/test/meson.build | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/app/test/meson.build b/app/test/meson.build
index 7fe261cae8..e56fb997bd 100644
--- a/app/test/meson.build
+++ b/app/test/meson.build
@@ -508,6 +508,16 @@ foreach arg : fast_tests
                 timeout : timeout_seconds_fast,
                 is_parallel : false,
                 suite : 'fast-tests')
+        if arg[0] == 'trace_autotest' and (not is_windows)
+            test_args += ['--trace=.*']
+            test_args += ['--trace-dir=@0@'.format(meson.current_build_dir())]
+            test(arg[0] + '_with_traces', dpdk_test,
+                    env : ['DPDK_TEST=' + arg[0]],
+                    args : test_args,
+                    timeout : timeout_seconds_fast,
+                    is_parallel : false,
+                    suite : 'fast-tests')
+        endif
     endif
 endforeach
 
-- 
2.33.0