build: cleanups to Makefile

Group similar rules, add comments to "else" and "endif" lines,
detect too-old config-host.mak before messing things up.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Paolo Bonzini 2020-10-15 12:20:02 -04:00
parent 345d7053ca
commit 2b8575bd5f
1 changed files with 28 additions and 17 deletions

View File

@ -30,13 +30,21 @@ UNCHECKED_GOALS := %clean TAGS cscope ctags dist \
help check-help print-% \
docker docker-% vm-help vm-test vm-build-%
all:
.PHONY: all clean distclean recurse-all dist msi FORCE
# Don't try to regenerate Makefile or configure
# We don't generate any of them
Makefile: ;
configure: ;
# All following code might depend on configuration variables
ifneq ($(wildcard config-host.mak),)
# Put the all: rule here so that config-host.mak can contain dependencies.
all:
include config-host.mak
git-submodule-update:
.git-submodule-status: git-submodule-update config-host.mak
Makefile: .git-submodule-status
.PHONY: git-submodule-update
@ -84,9 +92,7 @@ Makefile.mtest: build.ninja scripts/mtest2make.py
-include Makefile.mtest
endif
Makefile: .git-submodule-status
.git-submodule-status: git-submodule-update config-host.mak
# Ensure the build tree is okay.
# Check that we're not trying to do an out-of-tree build from
# a tree that's been used for an in-tree build.
ifneq ($(realpath $(SRC_PATH)),$(realpath .))
@ -97,6 +103,20 @@ seems to have been used for an in-tree build. You can fix this by running \
endif
endif
# force a rerun of configure if config-host.mak is too old or corrupted
ifeq ($(MESON),)
.PHONY: config-host.mak
x := $(shell rm -rf meson-private meson-info meson-logs)
endif
ifeq ($(NINJA),)
.PHONY: config-host.mak
x := $(shell rm -rf meson-private meson-info meson-logs)
endif
ifeq ($(wildcard build.ninja),)
.PHONY: config-host.mak
x := $(shell rm -rf meson-private meson-info meson-logs)
endif
config-host.mak: $(SRC_PATH)/configure $(SRC_PATH)/pc-bios $(SRC_PATH)/VERSION
@echo $@ is out-of-date, running configure
@if test -f meson-private/coredata.dat; then \
@ -114,15 +134,15 @@ plugins:
$(call quiet-command,\
$(MAKE) $(SUBDIR_MAKEFLAGS) -C contrib/plugins V="$(V)", \
"BUILD", "example plugins")
endif
endif # $(CONFIG_PLUGIN)
else
else # config-host.mak does not exist
config-host.mak:
ifneq ($(filter-out $(UNCHECKED_GOALS),$(MAKECMDGOALS)),$(if $(MAKECMDGOALS),,fail))
@echo "Please call configure before running make!"
@exit 1
endif
endif
endif # config-host.mak does not exist
# Only needed in case Makefile.ninja does not exist.
.PHONY: ninja-clean ninja-distclean clean-ctlist
@ -131,20 +151,11 @@ ninja-clean::
ninja-distclean::
build.ninja: config-host.mak
# Don't try to regenerate Makefile or configure
# We don't generate any of them
Makefile: ;
configure: ;
.PHONY: all clean distclean install \
recurse-all dist msi FORCE
SUBDIR_MAKEFLAGS=$(if $(V),,--no-print-directory --quiet)
include $(SRC_PATH)/tests/Makefile.include
all: recurse-all
Makefile:
ROM_DIRS = $(addprefix pc-bios/, $(ROMS))
ROM_DIRS_RULES=$(foreach t, all clean, $(addsuffix /$(t), $(ROM_DIRS)))