Make the "stack" script work for device tests.

The path where the tests are uploaded by atest differs from the
path to unstripped binaries in the out directory. As a result,
the script can't symbolize the parts of the stack trace that
correspond to code in the test binary. Add a fixup to use the
correct path.

Test: Used the script on example crashes in framework and vendor
device tests - appears to work and give correct line numbers.

Change-Id: I5470e6342afb801ac596cbc0c0bf067850b1e09a

scripts/stack_core.py

@@ -391,6 +391,17 @@ class TraceConverter:
           lib = area
           lib_name = None
 
+        # When using atest, test paths are different between the out/ directory
+        # and device. Apply fixups.
+        if lib.startswith("/data/local/tests/") or lib.startswith("/data/local/tmp/"):
+          test_name = lib.rsplit("/", 1)[-1]
+          prefix = "/data/nativetest"
+          if symbol.ARCH.endswith("64"):
+            prefix += "64"
+          if lib.startswith("/data/local/tests/vendor/"):
+            prefix += "/vendor"
+          lib = prefix + "/" + test_name + "/" + test_name
+
         # If a calls b which further calls c and c is inlined to b, we want to
         # display "a -> b -> c" in the stack trace instead of just "a -> c"
         info = symbol.SymbolInformation(lib, code_addr)