[FL-2052] New build system based on scons (#1269)

site_scons/site_tools/objdump.py

@@ -0,0 +1,26 @@
+from SCons.Builder import Builder
+from SCons.Action import Action
+
+
+def generate(env):
+    env.SetDefault(
+        OBJDUMP="objdump",
+        OBJDUMPFLAGS=[],
+        OBJDUMPCOM="$OBJDUMP $OBJDUMPFLAGS -S $SOURCES > $TARGET",
+    )
+    env.Append(
+        BUILDERS={
+            "ObjDump": Builder(
+                action=Action(
+                    "${OBJDUMPCOM}",
+                    "${OBJDUMPCOMSTR}",
+                ),
+                suffix=".lst",
+                src_suffix=".elf",
+            ),
+        }
+    )
+
+
+def exists(env):
+    return True