Redirect dex2oat logs to stderr for VM tests.

VM environment is somewhere in-between host and target: we consider VM
a target device use the target builds for it, but it's Linux rather than
Android, so it has no logcat / tombstoned, and all the logs must go to
stderr, or else they are lost. This patch redirects dex2oat logs to
stderr (dalvikvm logs were already redirected).

Test: Ran VM tests on LUCI with this patch (using led), observed dex2oat
      logs on stderr (some tests are currently failing).
Bug: 283085397
Change-Id: I37ae66feb8a8d51aef3abb908affd15bbf7ede23

1 files changed, 5 insertions, 0 deletions

diff --git a/test/default_run.py b/test/default_run.py
index 25b94b3f09..9fdd5a0909 100755
--- a/test/default_run.py
+++ b/test/default_run.py
@@ -799,6 +799,10 @@ def default_run(ctx, args, **kwargs):
       dex2oat_cmdline += f"gdb {GDB_DEX2OAT_EXTRA_ARGS} \
                           -d '{ANDROID_BUILD_TOP}' --args "
 
+    dex2oat_logger = ""
+    if ON_VM:
+      dex2oat_logger = "--runtime-arg -Xuse-stderr-logger"
+
     dex2oat_cmdline += f"'{ANDROID_ART_BIN_DIR}/{dex2oat_binary}' \
                         {COMPILE_FLAGS} \
                         --boot-image={BOOT_IMAGE} \
@@ -807,6 +811,7 @@ def default_run(ctx, args, **kwargs):
                         {app_image} \
                         --generate-mini-debug-info \
                         --instruction-set={ISA} \
+                        {dex2oat_logger} \
                         {class_loader_context}"
 
     if INSTRUCTION_SET_FEATURES != "":