Prepare v2018.07-rc1

[u-boot] / arch / arc / Makefile

diff --git a/arch/arc/Makefile b/arch/arc/Makefile
index de25cc99217857fbd6d0584897da8c1978ee1001..44568f8cf854607be9a6ad2663c73e599f4cc7ce 100644 (file)
--- a/arch/arc/Makefile
+++ b/arch/arc/Makefile
@@ -1,8 +1,19 @@
-#
-# SPDX-License-Identifier:     GPL-2.0+
-#
-
-head-y := arch/arc/cpu/$(CPU)/start.o
+# SPDX-License-Identifier: GPL-2.0+
 
 libs-y += arch/arc/cpu/$(CPU)/
 libs-y += arch/arc/lib/
+
+# MetaWare debugger doesn't support PIE (position-independent executable)
+# so the only way to load U-Boot in MDB is to fake it by:
+#   1. Reset PIE flag in ELF header
+#   2. Strip all debug information from elf
+ifdef CONFIG_SYS_LITTLE_ENDIAN
+       EXEC_TYPE_OFFSET=16
+else
+       EXEC_TYPE_OFFSET=17
+endif
+
+mdbtrick: u-boot
+       $(Q)printf '\x02' | dd of=u-boot bs=1 seek=$(EXEC_TYPE_OFFSET) count=1 \
+               conv=notrunc &> /dev/null
+       $(Q)$(CROSS_COMPILE)strip -g u-boot