diff options
Diffstat (limited to 'mk/embedded.mk')
| -rw-r--r-- | mk/embedded.mk | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/mk/embedded.mk b/mk/embedded.mk new file mode 100644 index 00000000..e8f3ae30 --- /dev/null +++ b/mk/embedded.mk @@ -0,0 +1,55 @@ +## -*- makefile -*- ------------------------------------------------------ +## +## Copyright 2001-2008 H. Peter Anvin - All Rights Reserved +## +## This program is free software; you can redistribute it and/or modify +## it under the terms of the GNU General Public License as published by +## the Free Software Foundation, Inc., 53 Temple Place Ste 330, +## Boston MA 02111-1307, USA; either version 2 of the License, or +## (at your option) any later version; incorporated herein by reference. +## +## ----------------------------------------------------------------------- + +## +## Make configuration for embedded directories +## + +include $(MAKEDIR)/syslinux.mk + +GCCOPT := $(call gcc_ok,-m32,) +GCCOPT += $(call gcc_ok,-ffreestanding,) +GCCOPT += $(call gcc_ok,-fno-stack-protector,) +GCCOPT += $(call gcc_ok,-fwrapv,) +GCCOPT += $(call gcc_ok,-freg-struct-return,) +GCCOPT += -march=i386 -Os -fomit-frame-pointer -mregparm=3 -DREGPARM=3 \ + -msoft-float +GCCOPT += $(call gcc_ok,-fno-exceptions,) +GCCOPT += $(call gcc_ok,-fno-asynchronous-unwind-tables,) +GCCOPT += $(call gcc_ok,-fno-strict-aliasing,) +GCCOPT += $(call gcc_ok,-falign-functions=0,-malign-functions=0) +GCCOPT += $(call gcc_ok,-falign-jumps=0,-malign-jumps=0) +GCCOPT += $(call gcc_ok,-falign-labels=0,-malign-labels=0) +GCCOPT += $(call gcc_ok,-falign-loops=0,-malign-loops=0) +GCCOPT += $(call gcc_ok,-mpreferred-stack-boundary=2,) +GCCOPT += $(call gcc_ok,-mincoming-stack-boundary=2,) + +LIBGCC := $(shell $(CC) $(GCCOPT) --print-libgcc) + +LD += -m elf_i386 + +# Note: use += for CFLAGS and SFLAGS in case something is set in MCONFIG.local +CFLAGS += $(GCCOPT) -g $(GCCWARN) -Wno-sign-compare $(OPTFLAGS) $(INCLUDES) +SFLAGS += $(CFLAGS) -D__ASSEMBLY__ + +.SUFFIXES: .c .o .S .s .i .elf .com .bin .asm .lst .c32 .lss + +%.o: %.c + $(CC) $(MAKEDEPS) $(CFLAGS) -c -o $@ $< +%.i: %.c + $(CC) $(MAKEDEPS) $(CFLAGS) -E -o $@ $< +%.s: %.c + $(CC) $(MAKEDEPS) $(CFLAGS) -S -o $@ $< +%.o: %.S + $(CC) $(MAKEDEPS) $(SFLAGS) -Wa,-a=$*.lst -c -o $@ $< +%.s: %.S + $(CC) $(MAKEDEPS) $(SFLAGS) -E -o $@ $< |