1 ## -*- makefile -*- ------------------------------------------------------
3 ## Copyright 2001-2008 H. Peter Anvin - All Rights Reserved
5 ## This program is free software; you can redistribute it and/or modify
6 ## it under the terms of the GNU General Public License as published by
7 ## the Free Software Foundation, Inc., 53 Temple Place Ste 330,
8 ## Boston MA 02111-1307, USA; either version 2 of the License, or
9 ## (at your option) any later version; incorporated herein by reference.
11 ## -----------------------------------------------------------------------
14 ## Make configuration for embedded directories
17 include $(topdir)/MCONFIG
19 GCCOPT := $(call gcc_ok,-m32,)
20 GCCOPT += $(call gcc_ok,-ffreestanding,)
21 GCCOPT += $(call gcc_ok,-fno-stack-protector,)
22 GCCOPT += $(call gcc_ok,-fwrapv,)
23 GCCOPT += $(call gcc_ok,-freg-struct-return,)
24 GCCOPT += -march=i386 -Os -fomit-frame-pointer -mregparm=3 -DREGPARM=3 \
26 GCCOPT += $(call gcc_ok,-fno-exceptions,)
27 GCCOPT += $(call gcc_ok,-fno-asynchronous-unwind-tables,)
28 GCCOPT += $(call gcc_ok,-fno-strict-aliasing,)
29 GCCOPT += $(call gcc_ok,-falign-functions=0,-malign-functions=0)
30 GCCOPT += $(call gcc_ok,-falign-jumps=0,-malign-jumps=0)
31 GCCOPT += $(call gcc_ok,-falign-labels=0,-malign-labels=0)
32 GCCOPT += $(call gcc_ok,-falign-loops=0,-malign-loops=0)
33 GCCOPT += $(call gcc_ok,-mpreferred-stack-boundary=2,)
34 GCCOPT += $(call gcc_ok,-mincoming-stack-boundary=2,)
36 LIBGCC := $(shell $(CC) $(GCCOPT) --print-libgcc)
40 # Note: use += for CFLAGS and SFLAGS in case something is set in MCONFIG.local
41 CFLAGS += $(GCCOPT) -g $(GCCWARN) -Wno-sign-compare $(OPTFLAGS) $(INCLUDES)
42 SFLAGS += $(CFLAGS) -D__ASSEMBLY__
44 .SUFFIXES: .c .o .S .s .i .elf .com .bin .asm .lst .c32 .lss
47 $(CC) $(MAKEDEPS) $(CFLAGS) -c -o $@ $<
49 $(CC) $(MAKEDEPS) $(CFLAGS) -E -o $@ $<
51 $(CC) $(MAKEDEPS) $(CFLAGS) -S -o $@ $<
53 $(CC) $(MAKEDEPS) $(SFLAGS) -Wa,-a=$*.lst -c -o $@ $<
55 $(CC) $(MAKEDEPS) $(SFLAGS) -E -o $@ $<