From b7f507caf082212ea1aa62897bb26d0f3b59b5c4 Mon Sep 17 00:00:00 2001
From: Luis Machado <luis.machado@linaro.org>
Date: Wed, 7 Apr 2021 16:20:44 -0300
Subject: Fix DTB generation mechanism and build failure

I ran into a build failure with --enable-targets=all due to the fact that
the moxie sim expects to be able to use the dtc tool.  If it isn't available,
the builds fails.

The following patch adds a prebuilt dtb file to the tree. That file is the one
that is used for installations.

The patch also enables (re-)generation of the dtb file through maintainer
mode, if it needs to be updated due to a change in the dts file.

Tested on aarch64-linux/x86_64-linux.

sim/moxie/ChangeLog:

2021-04-08  Luis Machado  <luis.machado@linaro.org>

	* Makefile.in (moxie-gdb.dtb): Add maintainer mode dependency.
	(install-dtb): Install prebuilt dtb file.
	* moxie-gdb.dtb: New prebuilt file.
---
 sim/moxie/ChangeLog     |   6 ++++++
 sim/moxie/Makefile.in   |  16 +++++++++++++---
 sim/moxie/moxie-gdb.dtb | Bin 0 -> 519 bytes
 3 files changed, 19 insertions(+), 3 deletions(-)
 create mode 100644 sim/moxie/moxie-gdb.dtb

(limited to 'sim')

diff --git a/sim/moxie/ChangeLog b/sim/moxie/ChangeLog
index b73cfab..95ddb4f 100644
--- a/sim/moxie/ChangeLog
+++ b/sim/moxie/ChangeLog
@@ -1,3 +1,9 @@
+2021-04-08  Luis Machado  <luis.machado@linaro.org>
+
+	* Makefile.in (moxie-gdb.dtb): Add maintainer mode dependency.
+	(install-dtb): Install prebuilt dtb file.
+	* moxie-gdb.dtb: New prebuilt file.
+
 2021-04-02  Mike Frysinger  <vapier@gentoo.org>
 
 	* aclocal.m4, configure: Regenerate.
diff --git a/sim/moxie/Makefile.in b/sim/moxie/Makefile.in
index ee51386..bd58074 100644
--- a/sim/moxie/Makefile.in
+++ b/sim/moxie/Makefile.in
@@ -17,6 +17,8 @@
 
 ## COMMON_PRE_CONFIG_FRAG
 
+DTC = @DTC@
+
 dtbdir = @datadir@/gdb/dtb
 
 SIM_OBJS = \
@@ -32,9 +34,17 @@ SIM_EXTRA_CFLAGS = -DDTB="\"$(dtbdir)/moxie-gdb.dtb\""
 
 all: moxie-gdb.dtb
 
-moxie-gdb.dtb: moxie-gdb.dts
-	dtc -O dtb -o moxie-gdb.dtb ${srcdir}/moxie-gdb.dts
+moxie-gdb.dtb: @MAINTAINER_MODE_TRUE@ moxie-gdb.dts
+	@echo Regenerating moxie-gdb.dtb
+	if test "x$(DTC)" != x; then \
+	  $(DTC) -O dtb -o moxie-gdb.dtb ${srcdir}/moxie-gdb.dts || exit 1; \
+	  $(SHELL) $(srcroot)/move-if-change moxie-gdb.dtb ${srcdir}/moxie-gdb.dtb || exit 1; \
+	else \
+	  echo "Could not update the moxie-gdb.dtb file because the device "; \
+	  echo "tree compiler tool (dtc) is missing.  Install the tool to "; \
+	  echo "update the device tree blob."; \
+	fi
 
 install-dtb: moxie-gdb.dtb
 	$(SHELL) $(srcdir)/../../mkinstalldirs $(DESTDIR)$(dtbdir)
-	$(INSTALL_DATA) moxie-gdb.dtb $(DESTDIR)$(dtbdir)/moxie-gdb.dtb
+	$(INSTALL_DATA) $(srcdir)/moxie-gdb.dtb $(DESTDIR)$(dtbdir)/moxie-gdb.dtb
diff --git a/sim/moxie/moxie-gdb.dtb b/sim/moxie/moxie-gdb.dtb
new file mode 100644
index 0000000..4c7e457
Binary files /dev/null and b/sim/moxie/moxie-gdb.dtb differ
-- 
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