kern
annotate Makefile @ 8:78d5c304ddd0
minor changes
| author | John Tsiombikas <nuclear@member.fsf.org> |
|---|---|
| date | Wed, 16 Feb 2011 07:50:25 +0200 |
| parents | a9176938bce1 |
| children | b11a86695493 |
| rev | line source |
|---|---|
| nuclear@0 | 1 # collect all of our C and assembly source files |
| nuclear@0 | 2 csrc = $(wildcard src/*.c) $(wildcard src/klibc/*.c) |
| nuclear@0 | 3 asmsrc = $(wildcard src/*.S) $(wildcard src/klibc/*.S) |
| nuclear@7 | 4 dep = $(asmsrc:.S=.d) $(csrc:.c=.d) |
| nuclear@0 | 5 |
| nuclear@0 | 6 # each source file will generate one object file |
| nuclear@2 | 7 obj = $(asmsrc:.S=.o) $(csrc:.c=.o) |
| nuclear@0 | 8 |
| nuclear@0 | 9 CC = gcc |
| nuclear@0 | 10 |
| nuclear@0 | 11 # -nostdinc instructs the compiler to ignore standard include directories |
| nuclear@0 | 12 # -m32 instructs the compiler to produce 32bit code (in case we have a 64bit compiler) |
| nuclear@0 | 13 CFLAGS = -m32 -Wall -g -nostdinc -fno-builtin -Isrc -Isrc/klibc |
| nuclear@0 | 14 ASFLAGS = -m32 -g -nostdinc -fno-builtin -Isrc -Isrc/klibc |
| nuclear@0 | 15 |
| nuclear@0 | 16 bin = kernel.elf |
| nuclear@0 | 17 |
| nuclear@0 | 18 # default target: make an ELF binary by linking the object files |
| nuclear@1 | 19 # we need to specify where to assume the text section (code) is going |
| nuclear@1 | 20 # in memory, as well as the kernel entry point (kentry). |
| nuclear@0 | 21 $(bin): $(obj) |
| nuclear@3 | 22 ld -melf_i386 -o $@ -Ttext 0x100000 -e kentry $(obj) |
| nuclear@0 | 23 |
| nuclear@7 | 24 -include $(dep) |
| nuclear@7 | 25 |
| nuclear@7 | 26 %.d: %.c |
| nuclear@7 | 27 @$(CPP) $(CFLAGS) -MM -MT $(@:.d=.o) $< >$@ |
| nuclear@7 | 28 |
| nuclear@7 | 29 %.d: %.S |
| nuclear@7 | 30 @$(CPP) $(ASFLAGS) -MM -MT $(@:.d=.o) $< >$@ |
| nuclear@7 | 31 |
| nuclear@0 | 32 .PHONY: clean |
| nuclear@0 | 33 clean: |
| nuclear@0 | 34 rm -f $(obj) $(bin) |
| nuclear@7 | 35 |
| nuclear@7 | 36 .PHONY: cleandep |
| nuclear@7 | 37 cleandep: |
| nuclear@7 | 38 rm -f $(dep) |