From a58aa54239d5f8c74030acb31a7e25a6fcd52db8 Mon Sep 17 00:00:00 2001
From: Avril <flanchan@cumallover.me>
Date: Tue, 24 Nov 2020 15:40:40 +0000
Subject: [PATCH] skel

---
 .gitignore                |  1 +
 lean/Makefile             | 67 +++++++++++++++++++++++++++++++++++----
 lean/include/map.h        |  4 +--
 lean/include/shuffle3.h   |  6 ++++
 lean/src/main.c           | 35 +++++++++++++-------
 lean/src/map_callback.cpp |  4 +--
 6 files changed, 94 insertions(+), 23 deletions(-)

diff --git a/.gitignore b/.gitignore
index 58b21ee..28eeec4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -2,3 +2,4 @@
 obj
 build/
 test/
+shuffle3-*
diff --git a/lean/Makefile b/lean/Makefile
index d09401b..2bd57f8 100644
--- a/lean/Makefile
+++ b/lean/Makefile
@@ -1,12 +1,65 @@
+SRC_C   = $(wildcard src/*.c)
+SRC_CXX = $(wildcard src/*.cpp)
+INCLUDE = include
 
+PROJECT=shuffle3
 
+COMMON_FLAGS = -Wall -pedantic $(addprefix -I,$(INCLUDE)) -fno-strict-aliasing
 
+OPT_FLAGS?=     -fgraphite -march=native
+CXX_OPT_FLAGS?= $(OPT_FLAGS) -felide-constructors
+
+CFLAGS   += $(COMMON_FLAGS) --std=gnu11
+CXXFLAGS += $(COMMON_FLAGS) --std=gnu++20 -fno-exceptions
+LDFLAGS  += 
+
+RELEASE_CFLAGS?=   -O3 -flto $(OPT_FLAGS)
+RELEASE_CXXFLAGS?= -O3 -flto $(CXX_OPT_FLAGS)
+RELEASE_LDFLAGS?=  -O3 -flto
+
+DEBUG_CFLAGS?= -O0 -g -DDEBUG
+DEBUG_CXXFLAGS?= $(DEBUG_CFLAGS)
+DEBUG_LDFLAGS?=
+
+# Objects
+
+OBJ_C   = $(addprefix obj/c/,$(SRC_C:.c=.o))
+OBJ_CXX = $(addprefix obj/cxx/,$(SRC_CXX:.cpp=.o))
+OBJ = $(OBJ_C) $(OBJ_CXX)
+
+# Phonies
+
+.PHONY: release
+release: | dirs $(PROJECT)-release
+
+.PHONY: debug
+debug: | dirs $(PROJECT)-debug
+
+# Targets
+
+dirs:
+	@mkdir -p obj/c{,xx}/src
+
+obj/c/%.o: %.c
+	$(CC) -c $< $(CFLAGS) -o $@ $(LDFLAGS)
+
+obj/cxx/%.o: %.cpp
+	$(CXX) -c $< $(CXXFLAGS) -o $@ $(LDFLAGS)
+
+
+$(PROJECT)-release: CFLAGS+= $(RELEASE_CFLAGS)
+$(PROJECT)-release: CXXFLAGS += $(RELEASE_CXXFLAGS)
+$(PROJECT)-release: LDFLAGS += $(RELEASE_LDFLAGS)
+$(PROJECT)-release: $(OBJ)
+	$(CXX) $^ $(CXXFLAGS) -o $@ $(LDFLAGS)
+	strip $@
+
+$(PROJECT)-debug: CFLAGS+= $(DEBUG_CFLAGS)
+$(PROJECT)-debug: CXXFLAGS += $(DEBUG_CXXFLAGS)
+$(PROJECT)-debug: LDFLAGS += $(DEBUG_LDFLAGS)
+$(PROJECT)-debug: $(OBJ)
+	$(CXX) $^ $(CXXFLAGS) -o $@ $(LDFLAGS)
 
-test:
-	gcc -c src/*.c -Iinclude -Wall -pedantic --std=gnu11
-	g++ -c src/*.cpp -Iinclude -Wall -pedantic --std=gnu++20
-	g++ -o $@ *.o
-	./$@
 clean:
-	rm -f test
-	rm -f *.o
+	rm -rf obj
+	rm -f $(PROJECT)-{release,debug}
diff --git a/lean/include/map.h b/lean/include/map.h
index 87534a1..244be43 100644
--- a/lean/include/map.h
+++ b/lean/include/map.h
@@ -18,8 +18,8 @@ typedef struct mmap {
 int open_and_map(const char* file, mmap_t* restrict ptr);
 int unmap_and_close(mmap_t map);
 
-typedef void* (*map_cb)(mmap_t map);
-void* map_and_then(const char* file, map_cb callback);
+typedef void* (*map_cb)(mmap_t map, void* user);
+void* map_and_then(const char* file, map_cb callback, void* user);
 
 #ifdef __cplusplus
 }
diff --git a/lean/include/shuffle3.h b/lean/include/shuffle3.h
index 75f72e2..a6571d7 100644
--- a/lean/include/shuffle3.h
+++ b/lean/include/shuffle3.h
@@ -14,9 +14,15 @@ extern "C" {
 #define _FORCE_INLINE __attribute__((gnu_inline)) extern inline
 #endif
 
+#ifdef DEBUG
+#define dprintf(fmt, ...) printf("[dbg @" __FILE__ "->%s:%d] " fmt "\n", __func__, __LINE__ __VA_OPT__(,) __VA_ARGS__)
+#else
+#define dprintf(fmt, ...)
+#endif
 
 #ifdef __cplusplus
 }
+
 #endif
 
 #endif /* _SHUFFLE3_H */
diff --git a/lean/src/main.c b/lean/src/main.c
index 330c412..b8f4452 100644
--- a/lean/src/main.c
+++ b/lean/src/main.c
@@ -11,6 +11,11 @@
 
 _Static_assert(sizeof(float)==sizeof(uint32_t), "float is not 32 bits");
 
+struct prog_args {
+	int argc;
+	char ** argv;
+};
+
 /*
 static void shuffle_file(const char* filename)
 {
@@ -22,14 +27,29 @@ static void unshuffle_file(const char* filename)
 	panic("unimplemented");
 }*/
 
-static void* map_callback(mmap_t map)
+static void* map_callback(mmap_t map, void* user)
 {
-	printf("fd %d mapped (sz %lu) (ptr %p)\n", map.fd, map.len, map.ptr);	
+	struct prog_args args = *(struct prog_args*)user;
+
+	dprintf("fd %d mapped (sz %lu) (ptr %p)\n", map.fd, map.len, map.ptr);	
 
 
 	return NULL;
 }
 
+
+int main(int argc, char** argv)
+{
+	struct prog_args args = {.argc = argc, .argv = argv};
+	
+	if( argv[1] ) {
+		map_and_then(argv[1], &map_callback, &args);
+	}
+
+	return 0;
+}
+
+#ifdef _TEST
 static void do_test()
 {
 	char* string = "Hello world.. how are you?????";
@@ -51,13 +71,4 @@ static void do_test()
 	}
 	printf("OK!\n\n");
 }
-
-int main(int argc, char** argv)
-{
-	do_test();
-	if( argv[1] ) {
-		map_and_then(argv[1], &map_callback);
-	}
-
-	return 0;
-}
+#endif
diff --git a/lean/src/map_callback.cpp b/lean/src/map_callback.cpp
index 8ea87b8..3c3f7f5 100644
--- a/lean/src/map_callback.cpp
+++ b/lean/src/map_callback.cpp
@@ -4,8 +4,8 @@
 #include <map.h>
 
 
-extern "C" void* map_and_then(const char* file, map_cb callback)
+extern "C" void* map_and_then(const char* file, map_cb callback, void* user)
 {
 	mm::mmap map(file);
-	return callback(map.as_raw());
+	return callback(map.as_raw(), user);
 }