From a24877586a566e052897e50e6a0c2f53cfb029f5 Mon Sep 17 00:00:00 2001 From: Fabio Porcedda Date: Fri, 14 Feb 2014 10:55:06 +0100 Subject: [PATCH] Makefile: add support for top-level parallel make To be able to use top-level parallel make we must not depend in a rule on the order of evaluation of the prerequisites, so instead of relyng on the left to right ordering of evaluation of the prerequisites add an explicit rule to describe the dependencies. Add explicit rules to describe the following dependency chain: $(TARGETS) -> target-finalize -> rootfs-* -> target-post-image Signed-off-by: Fabio Porcedda Acked-by: Arnout Vandecappelle (Essensium/Mind) Signed-off-by: Peter Korsgaard --- Makefile | 21 ++++++++++++--------- fs/common.mk | 4 ++-- 2 files changed, 14 insertions(+), 11 deletions(-) diff --git a/Makefile b/Makefile index 8e65bc7735..c89107ad30 100644 --- a/Makefile +++ b/Makefile @@ -377,8 +377,6 @@ include system/system.mk include $(BR2_EXTERNAL)/external.mk -TARGETS+=target-finalize - ifeq ($(BR2_ENABLE_LOCALE_PURGE),y) TARGETS+=target-purgelocales endif @@ -395,8 +393,6 @@ endif include fs/common.mk -TARGETS+=target-post-image - TARGETS_SOURCE:=$(patsubst %,%-source,$(TARGETS) $(BASE_TARGETS)) TARGETS_DIRCLEAN:=$(patsubst %,%-dirclean,$(TARGETS)) @@ -429,11 +425,16 @@ $(BUILD_DIR)/buildroot-config/auto.conf: $(BR2_CONFIG) prepare: $(BUILD_DIR)/buildroot-config/auto.conf -world: $(TARGETS) +# Add base dependencies to all targets even on those not based on the +# package framework. +$(TARGETS): dirs prepare dependencies + +world: target-post-image .PHONY: all world toolchain dirs clean distclean source outputmakefile \ legal-info legal-info-prepare legal-info-clean printvars \ - $(BASE_TARGETS) $(TARGETS) \ + target-finalize target-post-image \ + $(BASE_TARGETS) $(TARGETS) $(TARGETS_ROOTFS) \ $(TARGETS_DIRCLEAN) $(TARGETS_SOURCE) $(TARGETS_LEGAL_INFO) \ $(BUILD_DIR) $(STAGING_DIR) $(TARGET_DIR) \ $(HOST_DIR) $(BINARIES_DIR) $(STAMP_DIR) @@ -493,7 +494,7 @@ endif STRIP_FIND_CMD += -type f \( -perm /111 -o -name '*.so*' \) STRIP_FIND_CMD += -not \( $(call findfileclauses,libpthread*.so* $(call qstrip,$(BR2_STRIP_EXCLUDE_FILES))) \) -print -target-finalize: +target-finalize: $(TARGETS) rm -rf $(TARGET_DIR)/usr/include $(TARGET_DIR)/usr/share/aclocal \ $(TARGET_DIR)/usr/lib/pkgconfig $(TARGET_DIR)/usr/share/pkgconfig \ $(TARGET_DIR)/usr/lib/cmake $(TARGET_DIR)/usr/share/cmake @@ -520,6 +521,8 @@ endif find $(TARGET_DIR)/lib/modules -type f -name '*.ko' | \ xargs -r $(KSTRIPCMD); fi +$(TARGETS_ROOTFS): target-finalize + # See http://sourceware.org/gdb/wiki/FAQ, "GDB does not see any threads # besides the one in which crash occurred; or SIGTRAP kills my program when # I set a breakpoint" @@ -598,7 +601,7 @@ target-generatelocales: host-localedef done endif -target-post-image: +target-post-image: $(TARGETS_ROOTFS) @$(foreach s, $(call qstrip,$(BR2_ROOTFS_POST_IMAGE_SCRIPT)), \ $(call MESSAGE,"Executing post-image script $(s)"); \ $(USER_HOOKS_EXTRA_ENV) $(s) $(BINARIES_DIR) $(call qstrip,$(BR2_ROOTFS_POST_SCRIPT_ARGS))$(sep)) @@ -635,7 +638,7 @@ legal-info: dirs legal-info-clean legal-info-prepare $(TARGETS_LEGAL_INFO) \ @rm -f $(LEGAL_WARNINGS) show-targets: - @echo $(TARGETS) + @echo $(TARGETS) $(TARGETS_ROOTFS) graph-build: $(O)/build/build-time.log @install -d $(O)/graphs diff --git a/fs/common.mk b/fs/common.mk index 30e752470e..d95c26ba5c 100644 --- a/fs/common.mk +++ b/fs/common.mk @@ -64,7 +64,7 @@ ROOTFS_$(2)_COMPRESS_EXT = .xz ROOTFS_$(2)_COMPRESS_CMD = $$(XZ) -9 -C crc32 -c endif -$$(BINARIES_DIR)/rootfs.$(1): $$(ROOTFS_$(2)_DEPENDENCIES) +$$(BINARIES_DIR)/rootfs.$(1): target-finalize $$(ROOTFS_$(2)_DEPENDENCIES) @$$(call MESSAGE,"Generating root filesystem image rootfs.$(1)") $$(foreach hook,$$(ROOTFS_$(2)_PRE_GEN_HOOKS),$$(call $$(hook))$$(sep)) rm -f $$(FAKEROOT_SCRIPT) @@ -95,7 +95,7 @@ rootfs-$(1)-show-depends: rootfs-$(1): $$(BINARIES_DIR)/rootfs.$(1) $$(ROOTFS_$(2)_POST_TARGETS) ifeq ($$(BR2_TARGET_ROOTFS_$(2)),y) -TARGETS += rootfs-$(1) +TARGETS_ROOTFS += rootfs-$(1) endif endef -- 2.30.2