1# -*- makefile -*- 2# Copyright (c) 1999-2007 Hewlett-Packard Development Company, L.P. 3# Contributed by David Mosberger <davidm@hpl.hp.com> 4# Contributed by Stephane Eranian <eranian@hpl.hp.com> 5# 6# All rights reserved. 7# 8# Redistribution and use in source and binary forms, with or without 9# modification, are permitted provided that the following conditions 10# are met: 11# 12# * Redistributions of source code must retain the above copyright 13# notice, this list of conditions and the following disclaimer. 14# * Redistributions in binary form must reproduce the above 15# copyright notice, this list of conditions and the following 16# disclaimer in the documentation and/or other materials 17# provided with the distribution. 18# * Neither the name of Hewlett-Packard Co. nor the names of its 19# contributors may be used to endorse or promote products derived 20# from this software without specific prior written permission. 21# 22# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 23# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 24# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 25# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 26# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 27# BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 28# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 29# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 30# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 31# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR 32# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF 33# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 34# SUCH DAMAGE. 35# 36 37TOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi) 38 39# 40# Variables below overridable from command-line: 41# make VARNAME=value ... 42# 43 44# 45# Where to install the package. GNU-EFI will create and access 46# lib and include under the root 47# 48DESTDIR ?= / 49ifeq ($(origin INSTALLROOT),undefined) 50INSTALLROOT = $(DESTDIR) 51endif 52 53empty := 54space := $(empty) $(empty) 55stripped = $(subst $(space),/,$(strip $(subst /,$(space),$(1)))) 56unstripped = $(subst $(space),/,$(subst /,$(space),$(1))) 57is_absolute = $(subst $(call stripped,$(1)),$(empty),$(call unstripped,$(1))) 58 59override INSTALLROOT:=$(if $(call is_absolute,$(INSTALLROOT)),,$(TOPDIR)/)$(INSTALLROOT) 60 61PREFIX := /usr/local 62EXEC_PREFIX := $(PREFIX) 63LIBDIR := $(EXEC_PREFIX)/lib 64INCLUDEDIR := $(PREFIX)/include 65INSTALL := install 66 67# Compilation tools 68HOSTCC := $(prefix)gcc 69CC := $(prefix)$(CROSS_COMPILE)gcc 70AS := $(prefix)$(CROSS_COMPILE)as 71LD := $(prefix)$(CROSS_COMPILE)ld 72AR := $(prefix)$(CROSS_COMPILE)ar 73RANLIB := $(prefix)$(CROSS_COMPILE)ranlib 74OBJCOPY := $(prefix)$(CROSS_COMPILE)objcopy 75 76 77# Host/target identification 78OS := $(shell uname -s) 79HOSTARCH ?= $(shell $(HOSTCC) -dumpmachine | cut -f1 -d- | sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' ) 80ARCH ?= $(shell $(HOSTCC) -dumpmachine | cut -f1 -d- | sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' ) 81 82# Get ARCH from the compiler if cross compiling 83ifneq ($(CROSS_COMPILE),) 84 override ARCH := $(shell $(CC) -dumpmachine | cut -f1 -d-| sed -e s,i[3456789]86,ia32, -e 's,armv[67].*,arm,' ) 85endif 86 87# FreeBSD (and possibly others) reports amd64 instead of x86_64 88ifeq ($(ARCH),amd64) 89 override ARCH := x86_64 90endif 91 92GCCVERSION := $(shell $(CC) -dumpversion | cut -f1 -d.) 93GCCMINOR := $(shell $(CC) -dumpversion | cut -f2 -d.) 94USING_CLANG := $(shell $(CC) -v 2>&1 | grep -q 'clang version' && echo clang) 95 96# Rely on GCC MS ABI support? 97GCCNEWENOUGH := $(shell ( [ $(GCCVERSION) -gt "4" ] \ 98 || ( [ $(GCCVERSION) -eq "4" ] \ 99 && [ $(GCCMINOR) -ge "7" ] ) ) \ 100 && echo 1) 101 102# 103# Where to build the package 104# 105OBJDIR := $(TOPDIR)/$(ARCH) 106 107# 108# Variables below derived from variables above 109# 110 111# Arch-specific compilation flags 112CPPFLAGS += -DCONFIG_$(ARCH) -DCONFIG_64BIT 113 114CFLAGS += -Wno-error=pragmas 115 116ifeq ($(ARCH),ia64) 117 CFLAGS += -mfixed-range=f32-f127 118endif 119 120ifeq ($(ARCH),ia32) 121 CFLAGS += -mno-mmx -mno-sse 122 ifeq ($(HOSTARCH),x86_64) 123 ARCH3264 = -m32 124 endif 125endif 126 127# Set ISO C mode 128CPPFLAGS += -std=c11 129 130ifeq ($(ARCH),x86_64) 131 ifeq ($(GCCNEWENOUGH),1) 132 CPPFLAGS += -DGNU_EFI_USE_MS_ABI 133 ifneq ($(USING_CLANG),clang) 134 CPPFLAGS += -maccumulate-outgoing-args 135 endif 136 endif 137 138 CFLAGS += -mno-red-zone 139 ifeq ($(HOSTARCH),ia32) 140 ARCH3264 = -m64 141 endif 142endif 143 144ifneq (,$(filter $(ARCH),ia32 x86_64)) 145 # Disable AVX, if the compiler supports that. 146 CC_CAN_DISABLE_AVX=$(shell $(CC) -Werror -c -o /dev/null -xc -mno-avx - </dev/null >/dev/null 2>&1 && echo 1) 147 ifeq ($(CC_CAN_DISABLE_AVX), 1) 148 CFLAGS += -mno-avx 149 endif 150endif 151 152ifeq ($(ARCH),mips64el) 153 CFLAGS += -march=mips64r2 154 ARCH3264 = -mabi=64 155endif 156 157# 158# Set HAVE_EFI_OBJCOPY if objcopy understands --target efi-[app|bsdrv|rtdrv], 159# otherwise we need to compose the PE/COFF header using the assembler 160# 161ifneq ($(ARCH),arm) 162ifneq ($(ARCH),mips64el) 163ifneq ($(ARCH),riscv64) 164ifneq ($(ARCH),loongarch64) 165export HAVE_EFI_OBJCOPY=y 166endif 167endif 168endif 169endif 170 171ifeq ($(ARCH),arm) 172CFLAGS += -marm 173endif 174 175ifneq (,$(filter $(ARCH),aarch64 arm)) 176LDFLAGS += -z common-page-size=4096 177LDFLAGS += -z max-page-size=4096 178endif 179 180# Generic compilation flags 181INCDIR += -I$(SRCDIR) -I$(TOPDIR)/inc -I$(TOPDIR)/inc/$(ARCH) \ 182 -I$(TOPDIR)/inc/protocol 183 184# Only enable -fPIE for non MinGW compilers (unneeded on MinGW) 185GCCMACHINE := $(shell $(CC) -dumpmachine) 186ifneq (mingw32,$(findstring mingw32, $(GCCMACHINE))) 187 CFLAGS += -fPIE 188endif 189 190ifeq (FreeBSD, $(findstring FreeBSD, $(OS))) 191CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Werror \ 192 -funsigned-char -fshort-wchar -fno-strict-aliasing \ 193 -ffreestanding -fno-stack-protector 194else 195CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Wno-pointer-sign \ 196 -funsigned-char -fshort-wchar -fno-strict-aliasing \ 197 -ffreestanding -fno-stack-protector -fno-stack-check \ 198 $(if $(findstring gcc,$(CC)),-fno-merge-all-constants,) 199endif 200 201ARFLAGS := rDv 202ASFLAGS += $(ARCH3264) 203LDFLAGS += -nostdlib --warn-common --no-undefined --fatal-warnings \ 204 --build-id=sha1 -z nocombreloc 205 206ifneq ($(ARCH),arm) 207export LIBGCC=$(shell $(CC) $(CFLAGS) $(ARCH3264) -print-libgcc-file-name) 208endif 209