1 files changed, 43 insertions, 0 deletions
diff --git a/cmd/sandbox/exception.c b/cmd/sandbox/exception.c
new file mode 100644
index 00000000000..f9c847d8ff2
--- /dev/null
+++ b/cmd/sandbox/exception.c
@@ -0,0 +1,43 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * The 'exception' command can be used for testing exception handling.
+ *
+ * Copyright (c) 2020, Heinrich Schuchardt <xypron.glpk@gmx.de>
+ */
+
+#include <command.h>
+
+static int do_sigsegv(struct cmd_tbl *cmdtp, int flag, int argc,
+		      char *const argv[])
+{
+	u8 *ptr = NULL;
+
+	*ptr = 0;
+	return CMD_RET_FAILURE;
+}
+
+static int do_undefined(struct cmd_tbl *cmdtp, int flag, int argc,
+			char *const argv[])
+{
+#ifdef __powerpc__
+	asm volatile (".long 0xffffffff\n");
+#else
+	asm volatile (".word 0xffff\n");
+#endif
+	return CMD_RET_FAILURE;
+}
+
+static struct cmd_tbl cmd_sub[] = {
+	U_BOOT_CMD_MKENT(sigsegv, CONFIG_SYS_MAXARGS, 1, do_sigsegv,
+			 "", ""),
+	U_BOOT_CMD_MKENT(undefined, CONFIG_SYS_MAXARGS, 1, do_undefined,
+			 "", ""),
+};
+
+U_BOOT_LONGHELP(exception,
+	"<ex>\n"
+	"  The following exceptions are available:\n"
+	"  undefined  - undefined instruction\n"
+	"  sigsegv    - illegal memory access\n");
+
+#include <exception.h>