From b188817ad2a0c26264b742fed55320260650ecb7 Mon Sep 17 00:00:00 2001
From: Blake Romero <blake@blkrom.com>
Date: Fri, 10 Oct 2025 16:13:46 +0100
Subject: Refactor Makefile

---
 Makefile | 152 ++++++++++++++++++++++++++++++++-------------------------------
 1 file changed, 77 insertions(+), 75 deletions(-)

(limited to 'Makefile')

diff --git a/Makefile b/Makefile
index 8d4d05d..394c568 100644
--- a/Makefile
+++ b/Makefile
@@ -1,100 +1,102 @@
-# TODO: make shared library
-
-# Directory structure
-# ===================
-# .
-# ├── build
-# │   ├── bin
-# │   │   └── *
-# │   ├── dep
-# │   │   ├── *.d
-# │   └── obj
-# │       └── *.o
-# ├── src
-# │   ├── *.c
-# │   └── *.h
-# ├── test
-# │   └── test_*.c
-# ├── LICENSE
-# ├── Makefile
-# └── README.md
-
-proj:=dslibc
-
-# COMPILER OPTIONS
+#
+# Makefile
+#
+
+#
+# EXAMPLE DIRECTORY STRUCTURE
+# --------------------------------------------------------------------
+#	.
+#	├── build
+#	│   ├── bin
+#	│   │   └── *
+#	│   ├── dep
+#	│   │   ├── *.d
+#	│   └── obj
+#	│       └── *.o
+#	├── src
+#	│   ├── *
+#	│   │   ├── *.c
+#	│   │   └── *.h
+#	│   ├── *.c
+#	│   └── *.h
+#	├── test
+#	│   └── *.c
+#	├── LICENSE
+#	├── Makefile
+#	└── README
+#
+
+
+# VARIABLES
+# --------------------------------------------------------------------
+proj=dslibc
+testframework:=criterion
+
+# Compiler options
 CC:=gcc
 CFLAGS:=-std=c17 -Wall -Werror -g
 
-# LIBRARIES
-testframework:=criterion
+# Build directories
+bindir:=build/bin
+depdir:=build/dep
+objdir:=build/obj
 
-# DIRECTORIES
-buildir:=build
-objdir:=$(buildir)/obj
-bindir:=$(buildir)/bin
-depdir:=$(buildir)/dep
-srcdir:=src
-testdir:=test
-
-# FILES
-srcfiles:=$(wildcard $(srcdir)/*.c)
-objfiles=$(patsubst $(srcdir)/%.c,$(objdir)/%.o, $(srcfiles))
-testfiles:=$(wildcard $(testdir)/test_*.c)
-dependencies:=$(patsubst $(srcdir)/%.c,$(depdir)/%.d, $(srcfiles))
+# Files
+srcfiles:=$(shell find src -name '*.c')
+objects:=$(patsubst %.c, $(objdir)/%.o, $(notdir $(srcfiles)))
+dependencies:=$(patsubst %.c, $(depdir)/%.d, $(notdir $(srcfiles)))
+tests:=$(wildcard test/*.c)
 
+# Executable files
 bin:=$(bindir)/$(proj)
-testbins:=$(patsubst $(testdir)/%.c,$(bindir)/%, $(testfiles))
+testbins:=$(patsubst %.c,$(bindir)/%, $(notdir $(tests)))
 
 # TARGETS
+# --------------------------------------------------------------------
 .PHONY: build
-build: $(objdir) $(bindir) $(depdir) $(bin)
+build: $(bindir) $(depdir) $(objdir) $(objects) $(bin)
 
 .PHONY: clean
 clean:
-	-rm -r $(buildir)
+	-rm -r build
 
-.PHONY: test
-test: $(objdir) $(bindir) $(depdir) $(objfiles) $(testbins)
-	@for test in $(testbins); do ./$$test --verbose; done
+.PHONY: info
+info:
+	@echo srcfiles: $(srcfiles)
+	@echo objects: $(objects)
+	@echo dependencies: $(dependencies)
+	@echo tests: $(tests)
+	@echo bin: $(bin)
+	@echo testbins: $(testbins)
 
-.PHONY: run
-run: build
-	@$(bin)
+.PHONY: test
+test: build $(testbins)
+	for test in $(testbins); do ./$$test --verbose; done
 
-# .PHONY: demo
-# demo: $(objfiles) $(testdir)/demo.c
-#	$(CC) $(CFLAGS) -o $(bindir)/demo -c $^
 
-# .PHONY: shared
-# shared: $(objfiles)
-#	$(CC) -fPIC -shared -o $(proj).so $^
+# AUTOMATIC TARGETS
+# --------------------------------------------------------------------
+# Create directories
+$(bindir) $(depdir) $(objdir):
+	mkdir -p $@
 
-.PHONY: info
-info:
-	@echo "srcfiles:  $(srcfiles)"
-	@echo "objfiles:  $(objfiles)"
-	@echo "testfiles: $(testfiles)"
-	@echo "testbins: $(testbins)"
+# Build MAIN objects & dependencies
+$(objdir)/%.o: src/%.c
+	$(CC) $(CFLAGS) -o $@ -c $< -MMD -MF $(depdir)/$(@F:.o=.d)
 
-# Create object files
-$(objdir)/%.o: $(srcdir)/%.c
+# Build SUB-MODULE objects & dependencies
+$(objdir)/%.o:: src/*/%.c
 	$(CC) $(CFLAGS) -o $@ -c $< -MMD -MF $(depdir)/$(@F:.o=.d)
--include $(dependencies)
 
-# Create binary
-$(bin): $(objfiles)
+# Build MAIN executable
+$(bin): $(objects)
 	$(CC) $(CFLAGS) -o $@ $^
 
-# Make test binaries
-$(bindir)/%: $(testfiles) $(filter-out $(objdir)/demo.o,$(objfiles))
+# Build TEST executable (note: must filter-out main function to work)
+$(bindir)/%: $(tests) $(filter-out $(objdir)/main.o,$(objects))
 	$(CC) $(CFLAGS) -o $@ -l $(testframework) $^
 
-# Create Directories
-$(objdir):
-	mkdir -p $@
 
-$(bindir):
-	mkdir -p $@
-
-$(depdir):
-	mkdir -p $@
+# INCLUDES
+# --------------------------------------------------------------------
+-include $(dependencies)
-- 
cgit