99d94682de
If gnu-efi is compiled with "-march=native" on a host that supports AVX, both gcc and clang will use AVX instructions freely which is currently not supported and will result in a non-functional gnu-efi build (e.g. black screen, hangs). For now, disable AVX on IA32 and x86_64 by checking first if the compiler does actually support the appropriate flag (-mno-avx) and use it if possible. Credit for the compiler command line to check if a flag is supported goes to Gentoo's awesome flag-o-matic eclass, where it is taken from. Thanks. Signed-off-by: Matthias Dahl <matthias.dahl@binary-island.eu> Signed-off-by: Nigel Croxon <ncroxon@redhat.com>
181 lines
5.5 KiB
Makefile
Executable File
181 lines
5.5 KiB
Makefile
Executable File
# -*- makefile -*-
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# Copyright (c) 1999-2007 Hewlett-Packard Development Company, L.P.
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# Contributed by David Mosberger <davidm@hpl.hp.com>
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# Contributed by Stephane Eranian <eranian@hpl.hp.com>
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#
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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#
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above
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# copyright notice, this list of conditions and the following
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# disclaimer in the documentation and/or other materials
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# provided with the distribution.
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# * Neither the name of Hewlett-Packard Co. nor the names of its
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# contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
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# CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
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# INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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# MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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# DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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# BE LIABLE FOR ANYDIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
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# OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR
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# TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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# THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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TOPDIR := $(shell if [ "$$PWD" != "" ]; then echo $$PWD; else pwd; fi)
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#
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# Variables below overridable from command-line:
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# make VARNAME=value ...
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#
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#
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# Where to install the package. GNU-EFI will create and access
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# lib and include under the root
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#
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INSTALLROOT := /
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PREFIX := /usr/local
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LIBDIR := $(PREFIX)/lib
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INSTALL := install
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# Compilation tools
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HOSTCC := $(prefix)gcc
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CC := $(prefix)$(CROSS_COMPILE)gcc
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AS := $(prefix)$(CROSS_COMPILE)as
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LD := $(prefix)$(CROSS_COMPILE)ld
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AR := $(prefix)$(CROSS_COMPILE)ar
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RANLIB := $(prefix)$(CROSS_COMPILE)ranlib
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OBJCOPY := $(prefix)$(CROSS_COMPILE)objcopy
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# Host/target identification
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OS := $(shell uname -s)
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HOSTARCH := $(shell $(HOSTCC) -dumpmachine | cut -f1 -d- | sed s,i[3456789]86,ia32,)
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ARCH := $(HOSTARCH)
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# Get ARCH from the compiler if cross compiling
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ifneq ($(CROSS_COMPILE),)
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override ARCH := $(shell $(CC) -dumpmachine | cut -f1 -d-| sed s,i[3456789]86,ia32,)
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endif
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# FreeBSD (and possibly others) reports amd64 instead of x86_64
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ifeq ($(ARCH),amd64)
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override ARCH := x86_64
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endif
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#
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# Where to build the package
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#
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OBJDIR := $(TOPDIR)/$(ARCH)
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#
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# Variables below derived from variables above
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#
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# Arch-specific compilation flags
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CPPFLAGS += -DCONFIG_$(ARCH)
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ifeq ($(ARCH),ia64)
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CFLAGS += -mfixed-range=f32-f127
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endif
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ifeq ($(ARCH),ia32)
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CFLAGS += -mno-mmx -mno-sse
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ifeq ($(HOSTARCH),x86_64)
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ARCH3264 = -m32
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endif
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endif
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ifeq ($(ARCH),x86_64)
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GCCVERSION := $(shell $(CC) -dumpversion | cut -f1 -d.)
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GCCMINOR := $(shell $(CC) -dumpversion | cut -f2 -d.)
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USING_CLANG := $(shell $(CC) -v 2>&1 | grep -q 'clang version' && echo clang)
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# Rely on GCC MS ABI support?
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GCCNEWENOUGH := $(shell ( [ $(GCCVERSION) -gt "4" ] \
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|| ( [ $(GCCVERSION) -eq "4" ] \
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&& [ $(GCCMINOR) -ge "7" ] ) ) \
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&& echo 1)
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ifeq ($(GCCNEWENOUGH),1)
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CPPFLAGS += -DGNU_EFI_USE_MS_ABI -maccumulate-outgoing-args --std=c11
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else ifeq ($(USING_CLANG),clang)
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CPPFLAGS += -DGNU_EFI_USE_MS_ABI --std=c11
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endif
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CFLAGS += -mno-red-zone
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ifeq ($(HOSTARCH),ia32)
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ARCH3264 = -m64
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endif
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endif
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ifneq (,$(filter $(ARCH),ia32 x86_64))
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# Disable AVX, if the compiler supports that.
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CC_CAN_DISABLE_AVX=$(shell $(CC) -Werror -c -o /dev/null -xc -mno-avx - </dev/null >/dev/null 2>&1 && echo 1)
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ifeq ($(CC_CAN_DISABLE_AVX), 1)
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CFLAGS += -mno-avx
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endif
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endif
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ifeq ($(ARCH),mips64el)
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CFLAGS += -march=mips64r2
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ARCH3264 = -mabi=64
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endif
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#
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# Set HAVE_EFI_OBJCOPY if objcopy understands --target efi-[app|bsdrv|rtdrv],
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# otherwise we need to compose the PE/COFF header using the assembler
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#
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ifneq ($(ARCH),aarch64)
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ifneq ($(ARCH),arm)
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ifneq ($(ARCH),mips64el)
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export HAVE_EFI_OBJCOPY=y
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endif
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endif
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endif
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ifneq ($(ARCH),arm)
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export LIBGCC=$(shell $(CC) $(ARCH3264) -print-libgcc-file-name)
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endif
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ifeq ($(ARCH),arm)
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CFLAGS += -marm
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endif
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# Generic compilation flags
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INCDIR += -I$(SRCDIR) -I$(TOPDIR)/inc -I$(TOPDIR)/inc/$(ARCH) \
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-I$(TOPDIR)/inc/protocol
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# Only enable -fpic for non MinGW compilers (unneeded on MinGW)
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GCCMACHINE := $(shell $(CC) -dumpmachine)
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ifneq (mingw32,$(findstring mingw32, $(GCCMACHINE)))
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CFLAGS += -fpic
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endif
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ifeq (FreeBSD, $(findstring FreeBSD, $(OS)))
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CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Werror \
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-fshort-wchar -fno-strict-aliasing \
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-ffreestanding -fno-stack-protector
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else
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CFLAGS += $(ARCH3264) -g -O2 -Wall -Wextra -Werror \
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-fshort-wchar -fno-strict-aliasing \
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-fno-merge-all-constants -ffreestanding -fno-stack-protector \
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-fno-stack-check
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endif
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ARFLAGS += -U
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ASFLAGS += $(ARCH3264)
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LDFLAGS += -nostdlib --warn-common --no-undefined --fatal-warnings \
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--build-id=sha1
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