Round-robin scripts: improve regression email contents

When a regression occurs after the build phase, don't include harmless
errors from the the build stage, and provide info from the test phase.

Change-Id: I75ce76e81ecbda4492bb49e7d765c25cac599f12

1 files changed, 11 insertions, 0 deletions

diff --git a/tcwg_kernel-build.sh b/tcwg_kernel-build.sh
index 7de64f3f..f23bae86 100755
--- a/tcwg_kernel-build.sh
+++ b/tcwg_kernel-build.sh
@@ -223,6 +223,17 @@ no_regression_p ()
 	base_linux_n_obj=$(tail -n1 $ref_artifacts/results)
     fi
 
+    # In log scan for errors below
+    #   - sed -e 's/"[^"]*"//g' -- removes quoted "error: app diagnostics" strings
+    #   - " error:" detects compiler errors from GCC and Clang (including GCC ICEs)
+    #   - "^ERROR:" detects linker errors
+    #   - ": undefined reference" detects missing symbols during linking
+    #   - "] Error " detects GNU make errors
+    cat > $new_artifacts/regressions.txt <<EOF
+First few build errors in logs:
+$(cat $new_artifacts/console.log | sed -e 's/"[^"]*"//g' | grep " error:\|^ERROR:\|: undefined reference\|\] Error " | head)
+EOF
+
     case "$linux_n_obj:$base_linux_n_obj" in
 	boot:*) return 0 ;;
 	*:boot) return 1 ;;