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This patch applies the existing "privatization" of transitive shared-library dependencies from static lib dependencies to shared lib dependencies. It thereby improves the consistency of binaries created in a regular build directory with binaries created in depot archives. Issue #4408
161 lines
5.3 KiB
Makefile
161 lines
5.3 KiB
Makefile
#
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# This file determines dependencies of a library from other libraries
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#
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# The following variables must be defined by the caller:
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#
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# VERBOSE - controls the make verboseness
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# VERBOSE_DIR - verboseness of directory change messages
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# VERBOSE_MK - verboseness of make calls
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# REPOSITORIES - source code repositories to use
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# BASE_DIR - base directory of build system repository
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# TARGET_DIR - target build directory
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# BUILD_BASE_DIR - build directory with build config
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# LIB_CACHE_DIR - destination directory for object files
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# LIB_PROGRESS_LOG - library build log file
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# BUILD_LIBS - list of libraries to build (without .lib.a or .lib.so suffix)
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# INSTALL_DIR - destination directory for installing shared libraries
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# DEBUG_DIR - destination directory for installing unstripped shared libraries
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#
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ACCUMULATE_MISSING_PORTS = 1
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#
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# Include common utility functions
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#
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include $(BASE_DIR)/mk/util.inc
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#
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# Generate dependencies only for those libs that are
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# not already contained in the library build log
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#
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include $(LIB_PROGRESS_LOG)
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ifneq ($(filter $(LIB),$(LIBS_READY)),)
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already_visited:
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@true
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else
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all: append_lib_to_progress_log
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endif
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append_lib_to_progress_log:
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@echo "LIBS_READY += $(LIB)" >> $(LIB_PROGRESS_LOG)
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LIB_MK_DIRS = $(foreach REP,$(REPOSITORIES),$(addprefix $(REP)/lib/mk/spec/, $(SPECS)) $(REP)/lib/mk)
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SYMBOLS_DIRS = $(foreach REP,$(REPOSITORIES),$(addprefix $(REP)/lib/symbols/spec/,$(SPECS)) $(REP)/lib/symbols)
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#
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# Of all possible file locations, use the (first) one that actually exist.
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#
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LIB_MK = $(firstword $(wildcard $(addsuffix /$(LIB).mk,$(LIB_MK_DIRS))))
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SYMBOLS = $(firstword $(wildcard $(addsuffix /$(LIB), $(SYMBOLS_DIRS))))
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ifneq ($(SYMBOLS),)
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SHARED_LIB := yes
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endif
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#
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# Sanity check to detect missing library-description file
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#
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ifeq ($(sort $(LIB_MK) $(SYMBOLS)),)
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all: warn_missing_lib_mk
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else
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all: check_unsatisfied_requirements
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endif
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warn_missing_lib_mk: generate_lib_rule_for_defect_library
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@$(ECHO) "Library-description file $(DARK_COL)$(LIB).mk$(DEFAULT_COL) is missing"
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#
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# Determine the repository base directory from the absolute pathname
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# of the choosen libname.mk file. We need to specify the override
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# command because REP_DIR was first set by prg.mk when building a
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# program target. The repository of a library could be a different
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# one.
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#
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# Finally, we strip the trailing slash from the path. The slash was
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# used to match the whole directory in 'findstring'.
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#
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override REP_DIR := $(firstword $(foreach REP,$(REPOSITORIES),$(findstring $(REP)/,$(LIB_MK))))
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override REP_DIR := $(REP_DIR:/=)
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include $(BASE_DIR)/mk/base-libs.mk
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include $(LIB_MK)
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ifdef SHARED_LIB
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LIBS += ldso_so_support
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# record creation of shared library build artifact
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append_artifact_to_progress_log:
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@echo -e "\n# Build artifact $(LIB).lib.so\n" >> $(LIB_PROGRESS_LOG)
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append_lib_to_progress_log: append_artifact_to_progress_log
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endif
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#
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# Hide archive dependencies of shared libraries from users of the shared
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# library. Library users examine the 'DEP_A_<lib>' variable to determine
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# transitive dependencies. For shared libraries, this variable remains
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# undefined.
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#
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ifdef SHARED_LIB
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DEP_A_VAR_NAME := PRIVATE_DEP_A_$(LIB)
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DEP_SO_VAR_NAME := PRIVATE_DEP_SO_$(LIB)
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else
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DEP_A_VAR_NAME := DEP_A_$(LIB)
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DEP_SO_VAR_NAME := DEP_SO_$(LIB)
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endif
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#
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# Check if the requirements of the target are satisfied
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#
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UNSATISFIED_REQUIREMENTS = $(filter-out $(SPECS),$(REQUIRES))
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ifneq ($(UNSATISFIED_REQUIREMENTS),)
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check_unsatisfied_requirements: warn_unsatisfied_requirements
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else
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check_unsatisfied_requirements: generate_lib_rule
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endif
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warn_unsatisfied_requirements: generate_lib_rule_for_defect_library
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@$(ECHO) "Skip library $(LIB) because it requires $(DARK_COL)$(UNSATISFIED_REQUIREMENTS)$(DEFAULT_COL)"
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generate_lib_rule_for_defect_library:
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@echo "INVALID_DEPS += $(LIB)" >> $(LIB_DEP_FILE)
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@echo "" >> $(LIB_DEP_FILE)
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LIBS_TO_VISIT = $(filter-out $(LIBS_READY),$(LIBS))
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generate_lib_rule:
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ifneq ($(DEP_MISSING_PORTS),)
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@(echo "MISSING_PORTS += $(DEP_MISSING_PORTS)"; \
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echo "") >> $(LIB_DEP_FILE)
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endif
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@for i in $(LIBS_TO_VISIT); do \
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$(MAKE) $(VERBOSE_DIR) -f $(BASE_DIR)/mk/dep_lib.mk REP_DIR=$(REP_DIR) LIB=$$i; done
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ifneq ($(LIBS),)
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@(echo "$(DEP_A_VAR_NAME) = $(foreach l,$(LIBS),\$${ARCHIVE_NAME($l)} \$$(DEP_A_$l))"; \
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echo "$(DEP_SO_VAR_NAME) = $(foreach l,$(LIBS),\$${SO_NAME($l)} \$$(DEP_SO_$l))"; \
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echo "") >> $(LIB_DEP_FILE)
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endif
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@(echo "$(LIB).lib: check_ports $(addsuffix .lib,$(LIBS))"; \
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echo " @\$$(MKDIR) -p \$$(LIB_CACHE_DIR)/$(LIB)"; \
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echo " \$$(VERBOSE_MK)\$$(MAKE) $(VERBOSE_DIR) -C \$$(LIB_CACHE_DIR)/$(LIB) -f \$$(BASE_DIR)/mk/lib.mk \\"; \
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echo " REP_DIR=$(REP_DIR) \\"; \
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echo " LIB_MK=$(LIB_MK) \\"; \
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echo " SYMBOLS=$(SYMBOLS) \\"; \
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echo " LIB=$(LIB) \\"; \
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echo " ARCHIVES=\"\$$(sort \$$($(DEP_A_VAR_NAME)))\" \\"; \
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echo " SHARED_LIBS=\"\$$(sort \$$($(DEP_SO_VAR_NAME)))\" \\"; \
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echo " BUILD_BASE_DIR=$(BUILD_BASE_DIR) \\"; \
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echo " SHELL=$(SHELL) \\"; \
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echo " INSTALL_DIR=\$$(INSTALL_DIR) \\"; \
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echo " DEBUG_DIR=\$$(DEBUG_DIR)"; \
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echo "") >> $(LIB_DEP_FILE)
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ifdef SHARED_LIB
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@(echo "SO_NAME($(LIB)) := $(LIB).lib.so"; \
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echo "") >> $(LIB_DEP_FILE)
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else
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@(echo "ARCHIVE_NAME($(LIB)) := $(LIB).lib.a"; \
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echo "") >> $(LIB_DEP_FILE)
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endif
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