efi_selftest: test start image

This pair of tests checks the StartImage boot service.

Each test loads an EFI application into memory and starts it.
One returns by calling the Exit boot service. The other returns directly.

The tests are not built on x86_64 because the relocation code for the efi
binary cannot be created.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/efi_selftest/efi_selftest_miniapp_exit.c b/lib/efi_selftest/efi_selftest_miniapp_exit.c
new file mode 100644
index 0000000000..590c948a1c
--- /dev/null
+++ b/lib/efi_selftest/efi_selftest_miniapp_exit.c
@@ -0,0 +1,37 @@
+/*
+ * efi_selftest_miniapp_exit
+ *
+ * Copyright (c) 2018 Heinrich Schuchardt
+ *
+ * SPDX-License-Identifier:     GPL-2.0+
+ *
+ * This EFI application is run by the StartImage selftest.
+ * It uses the Exit boot service to return.
+ */
+
+#include <common.h>
+#include <efi_api.h>
+
+/*
+ * Entry point of the EFI application.
+ *
+ * @handle	handle of the loaded image
+ * @systable	system table
+ * @return	status code
+ */
+efi_status_t EFIAPI efi_main(efi_handle_t handle,
+			     struct efi_system_table *systable)
+{
+	struct efi_simple_text_output_protocol *con_out = systable->con_out;
+
+	con_out->output_string(con_out, L"EFI application calling Exit");
+
+	/* The return value is checked by the calling test */
+	systable->boottime->exit(handle, EFI_UNSUPPORTED, 0, NULL);
+
+	/*
+	 * This statement should not be reached.
+	 * To enable testing use a different return value.
+	 */
+	return EFI_SUCCESS;
+}