From 1d6357340818346756751f1793a91fbb2564e1a5 Mon Sep 17 00:00:00 2001
From: Joel Bodenmann <joel@embedded.pro>
Date: Tue, 21 Sep 2021 17:54:35 +0200
Subject: [PATCH] Adding FreeBSD support

---
 boards/base/FreeBSD-SDL/board.mk         |  7 ++++
 boards/base/FreeBSD-SDL/example/Makefile | 52 ++++++++++++++++++++++++
 boards/base/FreeBSD-SDL/readme.txt       | 22 ++++++++++
 changelog.txt                            |  1 +
 tools/gmake_scripts/compiler_gcc.mk      |  4 ++
 tools/gmake_scripts/os_freebsd.mk        | 16 ++++++++
 6 files changed, 102 insertions(+)
 create mode 100644 boards/base/FreeBSD-SDL/board.mk
 create mode 100644 boards/base/FreeBSD-SDL/example/Makefile
 create mode 100644 boards/base/FreeBSD-SDL/readme.txt
 create mode 100644 tools/gmake_scripts/os_freebsd.mk

diff --git a/boards/base/FreeBSD-SDL/board.mk b/boards/base/FreeBSD-SDL/board.mk
new file mode 100644
index 00000000..ae3cc20b
--- /dev/null
+++ b/boards/base/FreeBSD-SDL/board.mk
@@ -0,0 +1,7 @@
+GFXINC  += $(GFXLIB)/boards/base/Linux
+GFXSRC  +=
+GFXDEFS += -DGFX_USE_OS_LINUX=GFXON
+GFXLIBS += rt
+
+include $(GFXLIB)/drivers/multiple/SDL/driver.mk
+
diff --git a/boards/base/FreeBSD-SDL/example/Makefile b/boards/base/FreeBSD-SDL/example/Makefile
new file mode 100644
index 00000000..551163d5
--- /dev/null
+++ b/boards/base/FreeBSD-SDL/example/Makefile
@@ -0,0 +1,52 @@
+# Possible Targets:	all clean Debug cleanDebug Release cleanRelease
+
+##############################################################################################
+# Settings
+#
+
+# General settings
+	# See $(GFXLIB)/tools/gmake_scripts/readme.txt for the list of variables
+	OPT_OS					= freebsd
+	OPT_LINK_OPTIMIZE		= yes
+	# Change this next setting (or add the explicit compiler flags) if you are not compiling for x86 linux
+	OPT_CPU					= x64
+
+# uGFX settings
+	# See $(GFXLIB)/tools/gmake_scripts/library_ugfx.mk for the list of variables
+	GFXLIB					= ../uGFX
+	GFXBOARD				= FreeBSD-SDL
+	GFXDEMO					= modules/gdisp/basics
+
+# Linux settings
+	# See $(GFXLIB)/tools/gmake_scripts/os_linux.mk for the list of variables
+
+##############################################################################################
+# Set these for your project
+#
+
+ARCH     =
+XCC      = gcc10
+XAS      = gcc10
+XLD      = gcc10
+SRCFLAGS = -ggdb -O0
+CFLAGS   = `sdl2-config --libs --cflags`
+CXXFLAGS =
+ASFLAGS  =
+LDFLAGS  =
+
+SRC      =
+OBJS     =
+DEFS     =
+LIBS     =
+INCPATH  =
+LIBPATH  =
+
+##############################################################################################
+# These should be at the end
+#
+
+include $(GFXLIB)/tools/gmake_scripts/library_ugfx.mk
+include $(GFXLIB)/tools/gmake_scripts/os_$(OPT_OS).mk
+include $(GFXLIB)/tools/gmake_scripts/compiler_gcc.mk
+# *** EOF ***
+
diff --git a/boards/base/FreeBSD-SDL/readme.txt b/boards/base/FreeBSD-SDL/readme.txt
new file mode 100644
index 00000000..b2063ae3
--- /dev/null
+++ b/boards/base/FreeBSD-SDL/readme.txt
@@ -0,0 +1,22 @@
+This directory contains the interface for FreeBSD using SDL.
+
+As of today, this is simply a wrapper around the Linux drivers/support.
+
+On this board uGFX currently supports:
+	- GDISP via the SDL driver
+	- GINPUT-touch via the SDL driver
+	- GINPUT-keyboard via the SDL driver
+
+
+The folowing packages are required to run uGFX using this driver on
+a 64-bit FreeBSD system using SDL:
+	+ devel/gcc10
+	+ devel/sdl2
+
+
+The following should be added to the CFLAGS of the target makefile:
+	CFLAGS = `sdl2-config --libs --cflags`
+
+
+There is an example Makefile and project in the examples directory.
+
diff --git a/changelog.txt b/changelog.txt
index bc639582..e65d2974 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -24,6 +24,7 @@ FIX:        Prevent const qualifier being discarded in vfnprintg().
 FIX:        Fix missing return value in gfxQueueFSyncPut().
 FIX:        Fix missing return value in gfxQueueFSyncPush().
 FIX:        Fix missing return value in gfxQueueFSyncInsert().
+FEATURE:    Adding support for FreeBSD.
 
 
 *** Release 2.9 ***
diff --git a/tools/gmake_scripts/compiler_gcc.mk b/tools/gmake_scripts/compiler_gcc.mk
index 106e94d8..e8890846 100644
--- a/tools/gmake_scripts/compiler_gcc.mk
+++ b/tools/gmake_scripts/compiler_gcc.mk
@@ -116,6 +116,10 @@ ifeq ($(basename $(OPT_OS)),osx)
   EXEFILE = $(BUILDDIR)/$(PROJECT)
   TARGETS = $(EXEFILE)
 endif
+ifeq ($(basename $(OPT_OS)),freebsd)
+  EXEFILE = $(BUILDDIR)/$(PROJECT)
+  TARGETS = $(EXEFILE)
+endif
 ifeq ($(EXEFILE),)
   LDFLAGS += -nostartfiles
   EXEFILE = $(BUILDDIR)/$(PROJECT).elf
diff --git a/tools/gmake_scripts/os_freebsd.mk b/tools/gmake_scripts/os_freebsd.mk
new file mode 100644
index 00000000..8a5c4e06
--- /dev/null
+++ b/tools/gmake_scripts/os_freebsd.mk
@@ -0,0 +1,16 @@
+#
+# This file is subject to the terms of the GFX License. If a copy of
+# the license was not distributed with this file, you can obtain one at:
+#
+#             http://ugfx.io/license.html
+#
+
+# See readme.txt for the make API
+
+# Requirements:
+#
+# NONE
+#
+
+LDFLAGS += -pthread
+