Initial commit

Stuff in src/linker will get rewritten from scratch eventually, it's all
horrible. But for now focus is getting on shit work.

1 files changed, 56 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..c9c552a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,56 @@
+PREFIX ?= /usr/local
+BINDIR ?= /bin
+
+MAKEFLAGS += --no-builtin-rules
+
+# GCC 7: -Wstringop-overflow=, -Walloc-size-larger-than=, -Wduplicated-{branches,cond}
+WARNINGS := -Wall -Wextra -Wpedantic -Wformat=2 -Wstrict-aliasing=3 -Wstrict-overflow=3 -Wstack-usage=12500 \
+	-Wfloat-equal -Wcast-align -Wpointer-arith -Wchar-subscripts -Warray-bounds=2 -Wno-unused-parameter
+
+override CFLAGS ?= -g
+override CFLAGS += -std=c11 $(WARNINGS)
+override CPPFLAGS += -Isrc
+
+bins = app
+all: $(bins) runtime/libc.so runtime/libandroid.so runtime/liblog.so
+
+%.o: %.c
+	$(COMPILE.c) $^ -o $@
+
+%.so:
+	$(LINK.c) -shared $(filter %.c,$^) $(LDLIBS) -o $@
+
+%.a:
+	$(AR) rvs $@ $^
+
+$(bins): %:
+	$(LINK.c) $(filter %.c %.a,$^) $(LDLIBS) -o $@
+
+runtime:
+	mkdir -p $@
+
+runtime/libc.so: private CFLAGS += -D_GNU_SOURCE
+runtime/libc.so: runtime src/libc.c
+runtime/libpthread.so: private CFLAGS += -D_GNU_SOURCE
+runtime/libpthread.so: private LDLIBS += -lpthread
+runtime/libpthread.so: runtime src/libpthread.c
+runtime/libandroid.so: runtime src/libandroid.c
+runtime/liblog.so: runtime src/liblog.c
+
+linker.a: CFLAGS += -D_GNU_SOURCE -DANDROID_X86_LINKER -DLINKER_DEBUG=1
+linker.a: CFLAGS += -Wno-pedantic -Wno-variadic-macros -Wno-pointer-to-int-cast -Wno-int-to-pointer-cast
+linker.a: src/linker/dlfcn.o src/linker/linker.o src/linker/linker_environ.o src/linker/rt.o src/linker/strlcpy.o
+
+app: private LDLIBS += -ldl -Wl,-rpath,runtime
+app: src/app.c linker.a runtime/libc.so runtime/libpthread.so runtime/libandroid.so runtime/liblog.so
+
+install-bin: $(bins)
+	install -Dm755 $^ -t "$(DESTDIR)$(PREFIX)$(BINDIR)"
+
+install: install-bin
+
+clean:
+	$(RM) $(bins) *.a src/linker/*.o
+	$(RM) -r runtime
+
+.PHONY: all clean install