Add dependency figure to libjinue README.md (#98)

Add dependency figure to libjinue README.md.

doc/images/Makefile

@@ -0,0 +1,36 @@
+# Copyright (C) 2024 Philippe Aubertin.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+# 
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 
+# 3. Neither the name of the author nor the names of other contributors
+#    may be used to endorse or promote products derived from this software
+#    without specific prior written permission.
+# 
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS "AS IS" AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+# DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR ANY
+# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+PNG = libjinue-deps.png
+
+.PHONY: all
+all: $(PNG)
+
+%.png: %.gv
+	dot -Tpng -o $@ $<

doc/images/libjinue-deps.gv

@@ -0,0 +1,29 @@
+digraph "libjinue-deps" {
+    ranksep="1.0";
+
+    utils[label="libjinue-utils"];
+    libc[label="libc"];
+    libjinue[label="libjinue"];
+
+    utils->libc;
+    utils->libjinue;
+    libc->libjinue;
+
+    {
+        rank=same;
+        node[shape="box"];
+        edge[style="invis"];
+        jinue_h[label="<jinue/jinue.h>"];
+        libjinue->jinue_h;
+    }
+
+    {
+        rank=same;
+        node[shape="box"];
+        edge[style="invis"];
+        utils_h[label="<jinue/utils.h>"];
+        loader_h[label="<jinue/loader.h>"];
+        utils->loader_h;
+        utils->utils_h;
+    }
+}

userspace/lib/jinue/README.md

@@ -16,3 +16,5 @@ Build artifacts:
   * `<jinue/logging.h>` contains declarations for logging functions.
   * `<jinue/loader.h>` contains declarations for interfacing with the [user
     space loader](../../loader/).
+
+![Dependencies](../../../doc/images/libjinue-deps.png)