From a4ff471970e8f749dc16643ee7e354a3fcfa2ad7 Mon Sep 17 00:00:00 2001
From: Horst Kronstorfer <hkronsto@frequentis.com>
Date: Thu, 12 Jul 2012 02:58:32 +0000
Subject: [PATCH] dts/Makefile: Check for empty $(LDSCRIPT)
Make sure that $(LDSCRIPT) is not empty before calling process_lds
with 'cat $(LDSCRIPT)' else cat will block waiting for input from
stdin.
Signed-off-by: Horst Kronstorfer <hkronsto@frequentis.com>
---
dts/Makefile | 5 +++--
1 file changed, 3 insertions(+), 2 deletions(-)
diff --git a/dts/Makefile b/dts/Makefile
index 055b8ac599..50f9066115 100644
--- a/dts/Makefile
+++ b/dts/Makefile
@@ -67,8 +67,9 @@ $(obj)dt.o: $(DT_BIN)
# We look in the LDSCRIPT first.
# Then try the linker which should give us the answer.
# Then check it worked.
- oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` ;\
- oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
+ [ -n "$(LDSCRIPT)" ] && \
+ oformat=`$(call process_lds,cat $(LDSCRIPT),FORMAT)` && \
+ oarch=`$(call process_lds,cat $(LDSCRIPT),ARCH)` ;\
\
[ -z $${oformat} ] && \
oformat=`$(call process_lds,$(GET_LDS),FORMAT)` ;\
--
2.39.5