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# -*- makefile -*-
# Copyright (c) 1999-2007 Hewlett-Packard Development Company, L.P.
# Contributed by David Mosberger <davidm@hpl.hp.com>
# Contributed by Stephane Eranian <eranian@hpl.hp.com>
#
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following
# disclaimer in the documentation and/or other materials
# provided with the distribution.
# * Neither the name of Hewlett-Packard Co. nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
# BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
TOPDIR ?= $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
ARCHES = ia32 x86_64 ia64 aarch64 arm mips64el
#
# Variables below overridable from command-line:
# make VARNAME=value ...
#
#
# Where to install the package. GNU-EFI will create and access
# lib and include under the root
#
DESTDIR ?= /
ifeq ($(origin INSTALLROOT),undefined)
INSTALLROOT = $(DESTDIR)
endif
empty :=
space := $(empty) $(empty)
stripped = $(subst $(space),/,$(strip $(subst /,$(space),$(1))))
unstripped = $(subst $(space),/,$(subst /,$(space),$(1)))
is_absolute = $(subst $(call stripped,$(1)),$(empty),$(call unstripped,$(1)))
override INSTALLROOT:=$(if $(call is_absolute,$(INSTALLROOT)),,$(TOPDIR)/)$(INSTALLROOT)
PREFIX := /usr/local
LIBDIR := $(PREFIX)/lib
INSTALL := install
# Compilation tools
COMPILER ?= gcc
ARCHIVER ?= gcc-ar
HOSTCC := $(COMPILER)
CC := $(CROSS_COMPILE)$(COMPILER)
AS := $(CROSS_COMPILE)as
LD := $(CROSS_COMPILE)ld
AR := $(CROSS_COMPILE)$(ARCHIVER)
RANLIB := $(CROSS_COMPILE)ranlib
OBJCOPY := $(CROSS_COMPILE)objcopy
ifneq ($(CCACHE_DISABLE),)
export CCACHE_DISABLE
endif
# Host/target identification
OS := $(shell uname -s)
HOSTARCH ?= $(shell $(HOSTCC) -dumpmachine | cut -f1 -d- | sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' )
ARCH ?= $(shell $(CC) $(ARCH3264) -dumpmachine | cut -f1 -d- | sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' )
# FreeBSD (and possibly others) reports amd64 instead of x86_64
ifeq ($(ARCH),amd64)
override ARCH := x86_64
endif
#
# Where to build the package
#
OBJDIR := $(abspath .)/$(ARCH)
#
# Variables below derived from variables above
#
# Arch-specific compilation flags
CPPFLAGS += -DCONFIG_$(ARCH)
CFLAGS += -Wno-error=pragmas
ifeq ($(ARCH),ia64)
CFLAGS += -mfixed-range=f32-f127
endif
ifeq ($(ARCH),ia32)
CFLAGS += -mno-mmx -mno-sse
ifeq ($(HOSTARCH),x86_64)
ARCH3264 = -m32
endif
endif
ifeq ($(ARCH),x86_64)
GCCVERSION := $(shell $(CC) -dumpversion | cut -f1 -d.)
GCCMINOR := $(shell $(CC) -dumpversion | cut -f2 -d.)
USING_CLANG := $(shell $(CC) -v 2>&1 | grep -q 'clang version' && echo clang)
# Rely on GCC MS ABI support?
GCCNEWENOUGH := $(shell ( [ $(GCCVERSION) -gt "4" ] \
|| ( [ $(GCCVERSION) -eq "4" ] \
&& [ $(GCCMINOR) -ge "7" ] ) ) \
&& echo 1)
ifeq ($(USING_CLANG),clang)
CPPFLAGS += -DGNU_EFI_USE_MS_ABI -DGNU_EFI_USE_EXTERNAL_STDARG --std=c11
else ifeq ($(GCCNEWENOUGH),1)
CPPFLAGS += -DGNU_EFI_USE_MS_ABI -DGNU_EFI_USE_EXTERNAL_STDARG -maccumulate-outgoing-args --std=c11
endif
CFLAGS += -mno-red-zone
ifeq ($(HOSTARCH),ia32)
ARCH3264 = -m64
endif
endif
ifneq (,$(filter $(ARCH),ia32 x86_64))
# Disable AVX, if the compiler supports that.
CC_CAN_DISABLE_AVX=$(shell $(CC) -Werror -c -o /dev/null -xc -mno-avx - </dev/null >/dev/null 2>&1 && echo 1)
ifeq ($(CC_CAN_DISABLE_AVX), 1)
CFLAGS += -mno-avx
endif
endif
ifeq ($(ARCH),mips64el)
CFLAGS += -march=mips64r2
ARCH3264 = -mabi=64
endif
#
# Set HAVE_EFI_OBJCOPY if objcopy understands --target efi-[app|bsdrv|rtdrv],
# otherwise we need to compose the PE/COFF header using the assembler
#
ifneq ($(ARCH),arm)
ifneq ($(ARCH),mips64el)
export HAVE_EFI_OBJCOPY=y
endif
endif
ifeq ($(ARCH),arm)
CFLAGS += -marm
endif
# Generic compilation flags
INCDIR += -I$(SRCDIR) -I$(TOPDIR)/inc -I$(TOPDIR)/inc/$(ARCH) \
-I$(TOPDIR)/inc/protocol
# Only enable -fpic for non MinGW compilers (unneeded on MinGW)
GCCMACHINE := $(shell $(CC) -dumpmachine)
ifneq (mingw32,$(findstring mingw32, $(GCCMACHINE)))
CFLAGS += -fpic
endif
IS_FREEBSD = $(findstring FreeBSD, $(OS))
IS_DARWIN = $(findstring Darwin, $(OS))
WARNFLAGS ?= -Wall -Wextra
WERRFLAGS ?= -Werror
OPTIMIZATIONS ?= -O2 -g
ifneq "$(or $(IS_FREEBSD), $(IS_DARWIN))" ""
CFLAGS += $(ARCH3264) $(OPTIMIZATIONS) \
$(WARNFLAGS) $(WERRFLAGS) \
-fshort-wchar -fno-strict-aliasing \
-ffreestanding -fno-stack-protector
else
CFLAGS += $(ARCH3264) $(OPTIMIZATIONS) \
$(WARNFLAGS) $(WERRFLAGS) \
-fshort-wchar -fno-strict-aliasing \
-ffreestanding -fno-stack-protector \
-fno-stack-check -nostdinc \
$(CFLAGS_LTO) $(CFLAGS_GCOV) \
-isystem $(TOPDIR)/../include/system \
-isystem $(shell $(CC) $(ARCH3264) -print-file-name=include) \
$(if $(findstring gcc,$(CC)),-fno-merge-all-constants,)
endif
ifeq "$(IS_DARWIN)" ""
ARFLAGS += -U
else
ARFLAGS := rDv
endif
ASFLAGS += $(ARCH3264)
LDFLAGS += -nostdlib --warn-common --no-undefined --fatal-warnings \
--build-id=sha1 --no-warn-rwx-segments
ifneq ($(ARCH),arm)
export LIBGCC=$(shell $(CC) $(CFLAGS) $(ARCH3264) -print-libgcc-file-name)
endif
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