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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)
#
# 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
EXEC_PREFIX := $(PREFIX)
LIBDIR := $(EXEC_PREFIX)/lib
INCLUDEDIR := $(PREFIX)/include
INSTALL := install
# Compilation tools
HOSTCC := $(prefix)gcc
CC := $(prefix)$(CROSS_COMPILE)gcc
AS := $(prefix)$(CROSS_COMPILE)as
LD := $(prefix)$(CROSS_COMPILE)ld
AR := $(prefix)$(CROSS_COMPILE)ar
RANLIB := $(prefix)$(CROSS_COMPILE)ranlib
OBJCOPY := $(prefix)$(CROSS_COMPILE)objcopy
# 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 $(HOSTCC) -dumpmachine | cut -f1 -d- | sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' )
# Get ARCH from the compiler if cross compiling
ifneq ($(CROSS_COMPILE),)
override ARCH := $(shell $(CC) -dumpmachine | cut -f1 -d-| sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' )
endif
# FreeBSD (and possibly others) reports amd64 instead of x86_64
ifeq ($(ARCH),amd64)
override ARCH := x86_64
endif
#
# Where to build the package
#
OBJDIR := $(TOPDIR)/$(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" ] \
&& [ $(GCCMINOR) -ge "7" ] ) ) \
&& echo 1)
ifeq ($(GCCNEWENOUGH),1)
CPPFLAGS += -DGNU_EFI_USE_MS_ABI -maccumulate-outgoing-args -std=c11
else ifeq ($(USING_CLANG),clang)
CPPFLAGS += -DGNU_EFI_USE_MS_ABI -std=c11
endif
CFLAGS += -mno-red-zone
ifeq ($(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 ($(ARCH),mips64el)
ifneq ($(ARCH),riscv64)
ifneq ($(ARCH),loongarch64)
export HAVE_EFI_OBJCOPY=y
endif
endif
endif
endif
ifeq ($(ARCH),arm)
CFLAGS += -marm
endif
ifeq ($(ARCH),aarch64)
LDFLAGS += -z common-page-size=4096
LDFLAGS += -z max-page-size=4096
endif
# Generic compilation flags
INCDIR += -I$(SRCDIR) -I$(TOPDIR)/inc -I$(TOPDIR)/inc/$(ARCH) \
-I$(TOPDIR)/inc/protocol
# Only enable -fPIE for non MinGW compilers (unneeded on MinGW)
GCCMACHINE := $(shell $(CC) -dumpmachine)
ifneq (mingw32,$(findstring mingw32, $(GCCMACHINE)))
CFLAGS += -fPIE
endif
ifeq (FreeBSD, $(findstring FreeBSD, $(OS)))
CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Werror \
-funsigned-char -fshort-wchar -fno-strict-aliasing \
-ffreestanding -fno-stack-protector
else
CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Wno-pointer-sign -Werror \
-funsigned-char -fshort-wchar -fno-strict-aliasing \
-ffreestanding -fno-stack-protector -fno-stack-check \
-fno-stack-check \
$(if $(findstring gcc,$(CC)),-fno-merge-all-constants,)
endif
ARFLAGS := rDv
ASFLAGS += $(ARCH3264)
LDFLAGS += -nostdlib --warn-common --no-undefined --fatal-warnings \
--build-id=sha1 -z nocombreloc
ifneq ($(ARCH),arm)
export LIBGCC=$(shell $(CC) $(CFLAGS) $(ARCH3264) -print-libgcc-file-name)
endif
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