binman: Correct handling of zero bss size
Fix the check for the __bss_size symbol, since it may be 0. Unfortunately
there was no test coverage for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/tools/binman/test/bss_data_zero.lds b/tools/binman/test/bss_data_zero.lds
new file mode 100644
index 0000000..8fa0210
--- /dev/null
+++ b/tools/binman/test/bss_data_zero.lds
@@ -0,0 +1,15 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2016 Google, Inc
+ */
+
+OUTPUT_FORMAT("elf32-i386", "elf32-i386", "elf32-i386")
+OUTPUT_ARCH(i386)
+ENTRY(_start)
+
+SECTIONS
+{
+ . = 0xfffffdf0;
+ _start = .;
+ __bss_size = 0;
+}