From 467338ee01565234762db8077c067df42c3b40a8 Mon Sep 17 00:00:00 2001
From: Cliff Click <cliffc@acm.org>
Date: Thu, 12 Nov 2026 13:16:00 -0800
Subject: Add audio, overhaul makefiles

Adds simple audio support to Simple
Overhaul makefiles; remove common boilerplate; make them more uniform
---
 build-support/java.mk | 85 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 85 insertions(+)
 create mode 100644 build-support/java.mk

(limited to 'build-support/java.mk')

diff --git a/build-support/java.mk b/build-support/java.mk
new file mode 100644
index 00000000..6e91ea92
--- /dev/null
+++ b/build-support/java.mk
@@ -0,0 +1,85 @@
+# Common chapter build mechanics. Chapter Makefiles add only their own features.
+SHELL := /bin/bash
+.DEFAULT_GOAL := default
+.DELETE_ON_ERROR:
+.NOTINTERMEDIATE:
+
+java_rules := $(lastword $(MAKEFILE_LIST))
+BUILD_SUPPORT := $(patsubst %/,%,$(dir $(java_rules)))
+SIMPLE := com/seaofnodes/simple
+SRC := src/main/java
+TST := src/test/java
+CLZDIR ?= build/classes
+JAVAC_ARGS ?= -g
+SEP := $(if $(filter Windows_NT,$(OS)),;,:)
+CTAGS := $(shell command -v ctags 2>/dev/null)
+
+include $(BUILD_SUPPORT)/libraries.mk
+library_rules := $(lastword $(MAKEFILE_LIST))
+
+# Explicit paths/prerequisites: a missing JAR must not disappear from the classpath.
+space := $() $()
+libs := $(required_jars)
+jars := $(subst $(space),$(SEP),$(libs))
+main_javas := $(wildcard $(SRC)/$(SIMPLE)/*.java $(SRC)/$(SIMPLE)/*/*.java $(SRC)/$(SIMPLE)/node/cpus/*/*.java)
+test_javas := $(wildcard $(TST)/$(SIMPLE)/*.java $(TST)/$(SIMPLE)/*/*.java)
+include $(firstword $(wildcard ../graph/graph.mk graph/graph.mk))
+include $(firstword $(wildcard ../print/print.mk print/print.mk))
+ifeq ($(USE_ISA),1)
+include $(firstword $(wildcard ../isa/isa.mk isa/isa.mk))
+endif
+
+main_classes := $(CLZDIR)/main/.mtag
+test_classes := $(CLZDIR)/test/.ttag
+simple_driver := $(TST)/$(SIMPLE)/Simple.java
+test_cp = $(patsubst $(TST)/$(SIMPLE)/%.java,com.seaofnodes.simple.%,$(wildcard $(TST)/$(SIMPLE)/*Test.java)) $(EXTRA_TESTS)
+JVM = nice java -ea -cp "$(CLZDIR)/main$(SEP)$(jars)$(SEP)$(CLZDIR)/test"
+
+.PHONY: default build tests fuzzer tags clean release
+DEFAULT_TARGETS ?= tests
+default: $(DEFAULT_TARGETS) $(if $(CTAGS),tags)
+build: $(main_classes)
+print-%: ; @echo $* = $($*)
+
+# Compile a complete source set once, including shared sources. Per-class rules
+# and collecting only changed files left stale dependents in several chapters.
+$(CLZDIR)/main $(CLZDIR)/test:
+	@mkdir -p $@
+
+$(main_classes): $(main_javas) $(required_jars) Makefile $(java_rules) $(library_rules) | $(CLZDIR)/main
+	$(file >$(CLZDIR)/main.sources,$(main_javas))
+	@echo "compiling main " $(words $(main_javas)) " files"
+	@if ! javac $(JAVAC_ARGS) -cp "$(CLZDIR)/main$(SEP)$(jars)" -sourcepath $(SRC) -d $(CLZDIR)/main @$(CLZDIR)/main.sources >$(CLZDIR)/main.javac.log 2>&1; then cat $(CLZDIR)/main.javac.log; exit 1; fi
+	@touch $@
+
+$(test_classes): $(test_javas) $(isa_test_javas) $(main_classes) $(required_jars) Makefile $(java_rules) $(library_rules) | $(CLZDIR)/test
+	$(file >$(CLZDIR)/test.sources,$(test_javas) $(isa_test_javas))
+	@echo "compiling test " $(words $(test_javas) $(isa_test_javas)) " files"
+	@if ! javac $(JAVAC_ARGS) -cp "$(CLZDIR)/test$(SEP)$(CLZDIR)/main$(SEP)$(jars)" -sourcepath $(TST) -d $(CLZDIR)/test @$(CLZDIR)/test.sources >$(CLZDIR)/test.javac.log 2>&1; then cat $(CLZDIR)/test.javac.log; exit 1; fi
+	@touch $@
+
+ifneq ($(CUSTOM_TESTS),1)
+tests: $(test_classes)
+	@mkdir -p build/objs
+	@$(JVM) org.junit.runner.JUnitCore $(test_cp)
+ifneq ($(wildcard $(TST)/$(SIMPLE)/FuzzerWrap.java),)
+tests: fuzzer
+endif
+endif
+
+ifneq ($(wildcard $(TST)/$(SIMPLE)/FuzzerWrap.java),)
+fuzzer: $(test_classes)
+	@$(JVM) org.junit.runner.JUnitCore com.seaofnodes.simple.FuzzerWrap
+endif
+
+ifneq ($(CUSTOM_RELEASE),1)
+include $(BUILD_SUPPORT)/chapter-release.mk
+endif
+
+tags: TAGS
+TAGS: $(main_javas) $(test_javas)
+	@$(CTAGS) -e --recurse=yes --fields=+fksaiS $(SRC) $(TST)
+
+clean:
+	rm -rf build
+	rm -f TAGS
-- 
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