#
# Make.common
# Common make rules for building with gnu-efi
#

# This program is licensed under the terms of the GNU GPL, version 3,
# or (at your option) any later version.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.

EFIINC          = /usr/include/efi
GNUEFILIB       = /usr/lib
EFILIB          = /usr/lib
EFICRT0         = /usr/lib

# Comment out above and uncomment below if using locally-compiled GNU-EFI....
#EFIINC          = /usr/local/include/efi
#GNUEFILIB       = /usr/local/lib
#EFILIB          = /usr/local/lib
#EFICRT0         = /usr/local/lib

HOSTARCH        = $(shell uname -m | sed s,i[3456789]86,ia32,)
ARCH            := $(HOSTARCH)
OS		= $(shell uname -s)
CPPFLAGS        = -I$(EFIINC) -I$(EFIINC)/$(ARCH) -I$(EFIINC)/protocol -I../include -I../refind -I../libeg -DCONFIG_$(ARCH) -D__MAKEWITH_GNUEFI

OPTIMFLAGS      = -O2 -fno-strict-aliasing
DEBUGFLAGS      = -Wall
#CFLAGS          = $(ARCH3264) $(OPTIMFLAGS) -fpic -fshort-wchar $(DEBUGFLAGS)
CFLAGS          = $(ARCH3264) $(OPTIMFLAGS) -fno-stack-protector -fpic -fshort-wchar $(DEBUGFLAGS)
ASFLAGS         = $(ARCH3264)
LDFLAGS         = -nostdlib
DRV_LDFLAGS     =

prefix          = /usr/bin/
CC              = $(prefix)gcc
AS              = $(prefix)as
LD              = $(prefix)ld
AR              = $(prefix)ar
RANLIB          = $(prefix)ranlib
OBJCOPY         = $(prefix)objcopy

ifeq ($(ARCH),ia64)
  # EFI specs allows only lower floating point partition to be used
  CFLAGS       += -frename-registers -mfixed-range=f32-f127
endif

FORMAT          = --target=efi-app-$(ARCH)
FORMAT_DRIVER   = --target=efi-bsdrv-$(ARCH)

ifeq ($(ARCH),x86_64)
  CFLAGS += -DEFI_FUNCTION_WRAPPER -mno-red-zone 
  CPPFLAGS += -DEFIX64
  LDFLAGS += -znocombreloc -zdefs

  ifeq ($(HOSTARCH),ia32)
    ARCH3264 = -m64

    GNUEFILIB := $(GNUEFILIB)64
    EFILIB    := $(EFILIB)64
    EFICRT0   := $(EFICRT0)64
  endif
endif

ifeq ($(ARCH),ia32)
  CPPFLAGS += -DEFI32 -malign-double
  LDFLAGS += -znocombreloc -zdefs

  ifeq ($(HOSTARCH),x86_64)
    ARCH3264 = -m32

    GNUEFILIB := $(GNUEFILIB)32
    EFILIB    := $(EFILIB)32
    EFICRT0   := $(EFICRT0)32
  endif
endif

ifeq ($(ARCH), aarch64)
  CFLAGS += -fno-stack-check -g -fno-merge-constants -ffreestanding -fno-stack-check 
  CPPFLAGS += -DEFIAARCH64
  FORMAT          = -O binary
  FORMAT_DRIVER   = -O binary
  LDFLAGS         += --defsym=EFI_SUBSYSTEM=0xa --warn-common --no-undefined --fatal-warnings
  DRV_LDFLAGS     += --defsym=EFI_SUBSYSTEM=0xb --warn-common --no-undefined --fatal-warnings
endif

CRTOBJS         = $(EFICRT0)/crt0-efi-$(ARCH).o

ifneq (,$(findstring FreeBSD,$(OS)))
 ifeq ($(ARCH),x86_64)
	LDSCRIPT = $(EFICRT0)/elf_$(ARCH)_fbsd_efi.lds
 else
	LDSCRIPT = $(EFICRT0)/elf_$(ARCH)_efi.lds
 endif
else
	LDSCRIPT = $(EFICRT0)/elf_$(ARCH)_efi.lds
endif

LDFLAGS        += -T $(LDSCRIPT) -shared -Bsymbolic -L$(EFILIB) -L$(GNUEFILIB) $(CRTOBJS)
DRV_LDFLAGS    += -T $(LDSCRIPT) -shared -Bsymbolic -L$(EFILIB) -L$(GNUEFILIB) $(CRTOBJS)
LIBS            = -lefi -lgnuefi $(shell $(CC) $(ARCH3264) -print-libgcc-file-name)


# general rules

%.o: %.c 
	$(CC) $(LOCAL_CPPFLAGS) $(CPPFLAGS) $(LOCAL_CFLAGS) $(CFLAGS) -c $< -o $@

# rules for EFI applications

ifneq (,$(filter %.efi,$(TARGET)))

SHLIB_TARGET = $(subst .efi,.so,$(TARGET))

endif

# rules for libraries

ifneq (,$(filter %.a,$(TARGET)))

$(TARGET): $(OBJS)
	$(AR) cq $@ $(OBJS)

endif

# utility rules

clean:
	rm -f $(TARGET) *~ *.so $(OBJS) *.efi *.obj refind_*.txt refind_*.dll *.lib

# EOF