LXR qemu/tests/uefi-test-tools/Makefile

   1# Makefile for the test helper UEFI applications that run in guests.
   2#
   3# Copyright (C) 2019, Red Hat, Inc.
   4#
   5# This program and the accompanying materials are licensed and made available
   6# under the terms and conditions of the BSD License that accompanies this
   7# distribution. The full text of the license may be found at
   8# <http://opensource.org/licenses/bsd-license.php>.
   9#
  10# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, WITHOUT
  11# WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  12
  13edk2_dir              := ../../roms/edk2
  14images_dir            := ../data/uefi-boot-images
  15emulation_targets     := arm aarch64 i386 x86_64
  16uefi_binaries         := bios-tables-test
  17intermediate_suffixes := .efi .fat .iso.raw
  18
  19images: $(foreach binary,$(uefi_binaries), \
  20                $(foreach target,$(emulation_targets), \
  21                        $(images_dir)/$(binary).$(target).iso.qcow2))
  22
  23# Preserve all intermediate targets if the build succeeds.
  24# - Intermediate targets help with development & debugging.
  25# - Preserving intermediate targets also keeps spurious changes out of the
  26#   final build products, in case the user re-runs "make" without any changes
  27#   to the UEFI source code. Normally, the intermediate files would have been
  28#   removed by the last "make" invocation, hence the re-run would rebuild them
  29#   from the unchanged UEFI sources. Unfortunately, the "mkdosfs" and
  30#   "genisoimage" utilities embed timestamp-based information in their outputs,
  31#   which causes git to report differences for the tracked qcow2 ISO images.
  32.SECONDARY: $(foreach binary,$(uefi_binaries), \
  33                $(foreach target,$(emulation_targets), \
  34                        $(foreach suffix,$(intermediate_suffixes), \
  35                                Build/$(binary).$(target)$(suffix))))
  36
  37# In the pattern rules below, the stem (%, $*) stands for
  38# "$(binary).$(target)".
  39
  40# Convert the raw ISO image to a qcow2 one, enabling compression, and using a
  41# small cluster size. This allows for small binary files under git control,
  42# hence for small binary patches.
  43$(images_dir)/%.iso.qcow2: Build/%.iso.raw
  44        mkdir -p -- $(images_dir)
  45        $${QTEST_QEMU_IMG:-qemu-img} convert -f raw -O qcow2 -c \
  46                -o cluster_size=512 -- $< $@
  47
  48# Embed the "UEFI system partition" into an ISO9660 file system as an ElTorito
  49# boot image.
  50Build/%.iso.raw: Build/%.fat
  51        genisoimage -input-charset ASCII -efi-boot $(notdir $<) -no-emul-boot \
  52                -quiet -o $@ -- $<
  53
  54# Define chained macros in order to map QEMU system emulation targets to
  55# *short* UEFI architecture identifiers. Periods are allowed in, and ultimately
  56# stripped from, the argument.
  57map_arm_to_uefi     = $(subst arm,ARM,$(1))
  58map_aarch64_to_uefi = $(subst aarch64,AA64,$(call map_arm_to_uefi,$(1)))
  59map_i386_to_uefi    = $(subst i386,IA32,$(call map_aarch64_to_uefi,$(1)))
  60map_x86_64_to_uefi  = $(subst x86_64,X64,$(call map_i386_to_uefi,$(1)))
  61map_to_uefi         = $(subst .,,$(call map_x86_64_to_uefi,$(1)))
  62
  63# Format a "UEFI system partition", using the UEFI binary as the default boot
  64# loader. Add 10% size for filesystem metadata, round up to the next KB, and
  65# make sure the size is large enough for a FAT filesystem. Name the filesystem
  66# after the UEFI binary. (Excess characters are automatically dropped from the
  67# filesystem label.)
  68Build/%.fat: Build/%.efi
  69        rm -f -- $@
  70        uefi_bin_b=$$(stat --format=%s -- $<) && \
  71                uefi_fat_kb=$$(( (uefi_bin_b * 11 / 10 + 1023) / 1024 )) && \
  72                uefi_fat_kb=$$(( uefi_fat_kb >= 64 ? uefi_fat_kb : 64 )) && \
  73                mkdosfs -C $@ -n $(basename $(@F)) -- $$uefi_fat_kb
  74        MTOOLS_SKIP_CHECK=1 mmd -i $@ ::EFI
  75        MTOOLS_SKIP_CHECK=1 mmd -i $@ ::EFI/BOOT
  76        MTOOLS_SKIP_CHECK=1 mcopy -i $@ -- $< \
  77                ::EFI/BOOT/BOOT$(call map_to_uefi,$(suffix $*)).EFI
  78
  79# In the pattern rules below, the stem (%, $*) stands for "$(target)" only. The
  80# association between the UEFI binary (such as "bios-tables-test") and the
  81# component name from the edk2 platform DSC file (such as "BiosTablesTest") is
  82# explicit in each rule.
  83
  84# "build.sh" invokes the "build" utility of edk2 BaseTools. In any given edk2
  85# workspace, at most one "build" instance may be operating at a time. Therefore
  86# we must serialize the rebuilding of targets in this Makefile.
  87.NOTPARALLEL:
  88
  89# In turn, the "build" utility of edk2 BaseTools invokes another "make".
  90# Although the outer "make" process advertizes its job server to all child
  91# processes via MAKEFLAGS in the environment, the outer "make" closes the job
  92# server file descriptors (exposed in MAKEFLAGS) before executing a recipe --
  93# unless the recipe is recognized as a recursive "make" recipe. Recipes that
  94# call $(MAKE) are classified automatically as recursive; for "build.sh" below,
  95# we must mark the recipe manually as recursive, by using the "+" indicator.
  96# This way, when the inner "make" starts a parallel build of the target edk2
  97# module, it can communicate with the outer "make"'s job server.
  98Build/bios-tables-test.%.efi: build-edk2-tools
  99        +./build.sh $(edk2_dir) BiosTablesTest $* $@
 100
 101build-edk2-tools:
 102        cd $(edk2_dir)/BaseTools && git submodule update --init --force
 103        $(MAKE) -C $(edk2_dir)/BaseTools \
 104                PYTHON_COMMAND=$${EDK2_PYTHON_COMMAND:-python3} \
 105                EXTRA_OPTFLAGS='$(EDK2_BASETOOLS_OPTFLAGS)' \
 106                EXTRA_LDFLAGS='$(EDK2_BASETOOLS_LDFLAGS)'
 107
 108clean:
 109        rm -rf Build Conf log
 110        $(MAKE) -C $(edk2_dir)/BaseTools clean
 111