11a459ba96
all of our linker scripts: _text _etext _text_size _data _edata _data_size There are various things that are slightly different (positions of .rela*, .dynamic, and similar in relation to .data), but _text and _data are now always at the beginning of their respective sections with regard to how a debuger would reference the debug info, and _etext and _edata are now always extant and guaranteed to be after any of the respective kind of data the debugger would look for in that section. This also adds an application example of how it might be used, and a makefile target for %.efi.debug which will generate a separate debuginfo file for that example. This also enables debugging by default (i.e. -g is in CFLAGS) and adds .note.gnu.build-id sections to our .so files (i.e. --build-id=sha1 is in LDFLAGS). Signed-off-by: Peter Jones <pjones@redhat.com> Signed-off-by: Nigel Croxon <nigel.croxon@hp.com>
154 lines
4.8 KiB
Makefile
154 lines
4.8 KiB
Makefile
# -*- 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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# 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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endif
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CFLAGS += -mno-red-zone -mno-mmx -mno-sse
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ifeq ($(HOSTARCH),ia32)
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ARCH3264 = -m64
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endif
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endif
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#
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# Set HAVE_EFI_OBJCOPY if objcopy understands --target efi-[app|bsdrv|rtdrv],
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# otherwise we need to compose the PE/COFF header using the assembler
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#
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ifneq ($(ARCH),aarch64)
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ifneq ($(ARCH),arm)
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export HAVE_EFI_OBJCOPY=y
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endif
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endif
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ifneq ($(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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ifeq (FreeBSD, $(findstring FreeBSD, $(OS)))
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CFLAGS += $(ARCH3264) -g -O2 -fpic -Wall -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 -fpic -Wall -fshort-wchar -fno-strict-aliasing \
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-fno-merge-constants -ffreestanding -fno-stack-protector \
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-fno-stack-check
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endif
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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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