#!/bin/bash
# Repeatedly stop building until successive layers, and run all tests built,
# while checking for undefined behavior using both UBSan and Valgrind.
#
# Requires Linux.
#
# Usage:
#   Test all layers:
#     test_layers
#   Test non-app layers after x:
#     test_layers x
#   Test layers after x and until y (inclusive):
#     test_layers x y
#   Test all layers for a specific app:
#     test_layers app
set -e

test "$BUILD" || export BUILD=build3

if [[ $1 == one-off ]]
then
  ./$BUILD
  ./mu_bin test || exit 1
  exit 0
fi

# Core layers atop Valgrind
for f in [