| ## -*- 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 $(MAKEDIR)/syslinux.mk |
| |
| # Support IA32 and x86_64 platforms with one build |
| # Set up architecture specifics; for cross compilation, set ARCH as apt |
| # Initialize GCCOPT to null to begin with. Without this, make generates |
| # recursive error for GCCOPT |
| GCCOPT := |
| ifeq ($(ARCH),i386) |
| GCCOPT := $(call gcc_ok,-m32) |
| GCCOPT += $(call gcc_ok,-march=i386) |
| GCCOPT += $(call gcc_ok,-mpreferred-stack-boundary=2,) |
| GCCOPT += $(call gcc_ok,-mincoming-stack-boundary=2,) |
| endif |
| ifeq ($(ARCH),x86_64) |
| GCCOPT := $(call gcc_ok,-m64) |
| GCCOPT += $(call gcc_ok,-march=x86-64) |
| #let preferred-stack-boundary and incoming-stack-boundary be default(=4) |
| # Somewhere down the line ld barfs requiring -fPIC |
| GCCOPT += $(call gcc_ok,-fPIC) |
| endif |
| GCCOPT += $(call gcc_ok,-ffreestanding,) |
| GCCOPT += $(call gcc_ok,-fno-stack-protector,) |
| GCCOPT += $(call gcc_ok,-fwrapv,) |
| GCCOPT += $(call gcc_ok,-freg-struct-return,) |
| ifdef EFI_BUILD |
| GCCOPT += -Os -fomit-frame-pointer -msoft-float |
| else |
| GCCOPT += -Os -fomit-frame-pointer -mregparm=3 -DREGPARM=3 \ |
| -msoft-float |
| endif |
| 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,-fvisibility=hidden) |
| |
| LIBGCC := $(shell $(CC) $(GCCOPT) --print-libgcc) |
| |
| LD += -m elf_$(ARCH) |
| |
| # 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 $@ $< |
