[#64310] docker.BUILD.bazel: openroad.bzl: Fixed final stage environm…

…ent variables

Signed-off-by: Jan Bylicki <[email protected]>

docker.BUILD.bazel

@@ -31,6 +31,12 @@ filegroup(
     srcs = ["lib64/ld-linux-x86-64.so.2"],
 )
 
+filegroup(
+    name = "libstdbuf.so",
+    srcs = ["usr/libexec/coreutils/libstdbuf.so"],
+    visibility = ["//visibility:public"],
+)
+
 filegroup(
     name = "openroad",
     data = [
@@ -71,6 +77,7 @@ filegroup(
     name = "klayout",
     data = [
         ":ld.so",
+        ":libstdbuf.so",
     ],
     srcs = ["usr/bin/klayout"],
     visibility = ["//visibility:public"],

openroad.bzl

@@ -204,6 +204,44 @@ def commonpath(files):
     path, _, _ = prefix.rpartition("/")
     return path
 
+def preloadwrap(command, library):
+    """
+    Return `command` wrapped in an `LD_PRELOAD` statement.
+
+    Args:
+      command: The command to be wrapped.
+      library: The library to be preloaded.
+
+    Returns:
+      The wrapped command.
+    """
+    return "LD_PRELOAD=" + library + " " + command
+
+def envwrap(command):
+    """
+    Return `command` argument wrapped in an `env -S` statement.
+
+    Args:
+      command: The command to be wrapped.
+
+    Returns:
+      The wrapped command.
+    """
+    return "env -S " + command
+
+def pathatlevel(path, level):
+    """
+    Return `path` argument, `level` directories back.
+
+    Args:
+      path: Path to be prepended.
+      level: The level of the parent directory to go to.
+
+    Returns:
+      The edited path.
+    """
+    return "/".join([".." for _ in range(level)] + [path])
+
 def flow_substitutions(ctx):
     return {
         "${MAKEFILE_PATH}": ctx.file._makefile.path,
@@ -218,6 +256,7 @@ def openroad_substitutions(ctx):
         "${TCL_LIBRARY}": commonpath(ctx.files._tcl),
         "${LIBGL_DRIVERS_PATH}": commonpath(ctx.files._opengl),
         "${QT_PLUGIN_PATH}": commonpath(ctx.files._qt_plugins),
+        "${QT_QPA_PLATFORM_PLUGIN_PATH}": commonpath(ctx.files._qt_plugins),
         "${GIO_MODULE_DIR}": commonpath(ctx.files._gio_modules),
     }
 
@@ -265,6 +304,10 @@ def flow_attrs():
             default = ":make.tpl",
             allow_single_file = True,
         ),
+        "_libstdbuf": attr.label(
+            allow_single_file = ["libstdbuf.so"],
+            default = Label("@docker_orfs//:libstdbuf.so"),
+        ),
     }
 
 def yosys_only_attrs():
@@ -684,8 +727,10 @@ def _make_impl(ctx, stage, steps, result_names = [], object_names = [], log_name
             "DESIGN_CONFIG": config.path,
             "FLOW_HOME": ctx.file._makefile.dirname,
             "OPENROAD_EXE": ctx.executable._openroad.path,
-            "KLAYOUT_CMD": ctx.executable._klayout.path,
+            "KLAYOUT_CMD": envwrap(preloadwrap(ctx.executable._klayout.path, ctx.file._libstdbuf.path)),
             "TCL_LIBRARY": commonpath(ctx.files._tcl),
+            "QT_QPA_PLATFORM_PLUGIN_PATH": pathatlevel(commonpath(ctx.files._qt_plugins), 5),
+            "QT_PLUGIN_PATH": commonpath(ctx.files._qt_plugins),
         },
         inputs = depset(
             ctx.files.src +