Initial commit. We have a booting kernel

2022-11-12 21:04:47 +02:00
commit e6b4866ab0
36 changed files with 691 additions and 0 deletions
--- a/libc/Makefile
+++ b/libc/Makefile
@@ -0,0 +1,93 @@
+DEFAULT_HOST!=../default-host.sh
+HOST?=DEFAULT_HOST
+HOSTARCH!=../target-triplet-to-arch.sh $(HOST)
+ 
+CFLAGS?=-O2 -g
+CPPFLAGS?=
+LDFLAGS?=
+LIBS?=
+ 
+DESTDIR?=
+PREFIX?=/usr/local
+EXEC_PREFIX?=$(PREFIX)
+INCLUDEDIR?=$(PREFIX)/include
+LIBDIR?=$(EXEC_PREFIX)/lib
+ 
+CFLAGS:=$(CFLAGS) -ffreestanding -Wall -Wextra
+CPPFLAGS:=$(CPPFLAGS) -D__is_libc -Iinclude
+LIBK_CFLAGS:=$(CFLAGS)
+LIBK_CPPFLAGS:=$(CPPFLAGS) -D__is_libk
+ 
+ARCHDIR=arch/$(HOSTARCH)
+ 
+include $(ARCHDIR)/make.config
+ 
+CFLAGS:=$(CFLAGS) $(ARCH_CFLAGS)
+CPPFLAGS:=$(CPPFLAGS) $(ARCH_CPPFLAGS)
+LIBK_CFLAGS:=$(LIBK_CFLAGS) $(KERNEL_ARCH_CFLAGS)
+LIBK_CPPFLAGS:=$(LIBK_CPPFLAGS) $(KERNEL_ARCH_CPPFLAGS)
+ 
+FREEOBJS=\
+$(ARCH_FREEOBJS) \
+stdio/printf.o \
+stdio/putchar.o \
+stdio/puts.o \
+stdlib/abort.o \
+string/memcmp.o \
+string/memcpy.o \
+string/memmove.o \
+string/memset.o \
+string/strlen.o \
+ 
+HOSTEDOBJS=\
+$(ARCH_HOSTEDOBJS) \
+ 
+OBJS=\
+$(FREEOBJS) \
+$(HOSTEDOBJS) \
+ 
+LIBK_OBJS=$(FREEOBJS:.o=.libk.o)
+ 
+#BINARIES=libc.a libk.a # Not ready for libc yet.
+BINARIES=libk.a
+ 
+.PHONY: all clean install install-headers install-libs
+.SUFFIXES: .o .libk.o .c .S
+ 
+all: $(BINARIES)
+ 
+libc.a: $(OBJS)
+	$(AR) rcs $@ $(OBJS)
+ 
+libk.a: $(LIBK_OBJS)
+	$(AR) rcs $@ $(LIBK_OBJS)
+ 
+.c.o:
+	$(CC) -MD -c $< -o $@ -std=gnu11 $(CFLAGS) $(CPPFLAGS)
+ 
+.S.o:
+	$(CC) -MD -c $< -o $@ $(CFLAGS) $(CPPFLAGS)
+ 
+.c.libk.o:
+	$(CC) -MD -c $< -o $@ -std=gnu11 $(LIBK_CFLAGS) $(LIBK_CPPFLAGS)
+ 
+.S.libk.o:
+	$(CC) -MD -c $< -o $@ $(LIBK_CFLAGS) $(LIBK_CPPFLAGS)
+ 
+clean:
+	rm -f $(BINARIES) *.a
+	rm -f $(OBJS) $(LIBK_OBJS) *.o */*.o */*/*.o
+	rm -f $(OBJS:.o=.d) $(LIBK_OBJS:.o=.d) *.d */*.d */*/*.d
+ 
+install: install-headers install-libs
+ 
+install-headers:
+	mkdir -p $(DESTDIR)$(INCLUDEDIR)
+	cp -R --preserve=timestamps include/. $(DESTDIR)$(INCLUDEDIR)/.
+ 
+install-libs: $(BINARIES)
+	mkdir -p $(DESTDIR)$(LIBDIR)
+	cp $(BINARIES) $(DESTDIR)$(LIBDIR)
+ 
+-include $(OBJS:.o=.d)
+-include $(LIBK_OBJS:.o=.d)