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5569d2ddc2
'SANITIZE_UNDEFINED = yes' in 'target.mk' adds the '-fsanitize=undefined' compiler flag and links the program with libubsan and libsanitizer_common. Issue #3072
114 lines
3.7 KiB
Makefile
114 lines
3.7 KiB
Makefile
#
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# Prevent execution of any rule contained in $(TARGET_MK) as default rule
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#
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all:
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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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# Include target build instructions to aquire library dependecies
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#
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PRG_DIR := $(dir $(TARGET_MK))
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include $(TARGET_MK)
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#
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# Add libgcov if coverage is requested
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#
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ifeq ($(COVERAGE),yes)
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LIBS += libgcov
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endif
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#
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# Add libraries for undefined behavior sanitizer if requested
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#
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ifeq ($(SANITIZE_UNDEFINED),yes)
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LIBS += libubsan libsanitizer_common
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endif
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#
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# Include lib-import description files
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#
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include $(foreach LIB,$(LIBS),$(call select_from_repositories,lib/import/import-$(LIB).mk))
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#
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# Add globally defined library supplements
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#
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include $(SPEC_FILES)
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#
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# Determine location of $(TARGET_MK) within 'src/', remove trailing slash
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#
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PRG_REL_DIR := $(subst $(REP_DIR)/src/,,$(PRG_DIR))
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PRG_REL_DIR := $(PRG_REL_DIR:/=)
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#
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# Prevent generation of program rule if requirements are unsatisfied
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#
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UNSATISFIED_REQUIREMENTS = $(filter-out $(SPECS),$(REQUIRES))
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ifneq ($(UNSATISFIED_REQUIREMENTS),)
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all:
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@$(ECHO) "Skip target $(PRG_REL_DIR) because it requires $(DARK_COL)$(UNSATISFIED_REQUIREMENTS)$(DEFAULT_COL)"
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else
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all: gen_prg_rule
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endif
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include $(LIB_PROGRESS_LOG)
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LIBS_TO_VISIT = $(filter-out $(LIBS_READY),$(LIBS))
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#
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# Generate program rule
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#
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gen_prg_rule:
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ifneq ($(LIBS),)
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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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@(echo "DEP_A_$(TARGET).prg = $(foreach l,$(LIBS),\$${ARCHIVE_NAME($l)} \$$(DEP_A_$l))"; \
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echo "DEP_SO_$(TARGET).prg = $(foreach l,$(LIBS),\$${SO_NAME($l)} \$$(DEP_SO_$l))"; \
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echo "") >> $(LIB_DEP_FILE)
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endif
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ifneq ($(DEP_MISSING_PORTS),)
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@(echo "MISSING_PORTS += $(DEP_MISSING_PORTS)"; \
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echo "") >> $(LIB_DEP_FILE)
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endif
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@(echo "$(TARGET).prg: check_ports $(addsuffix .lib,$(LIBS))"; \
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echo " @\$$(MKDIR) -p $(PRG_REL_DIR)"; \
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echo " \$$(VERBOSE_MK)\$$(MAKE) $(VERBOSE_DIR) -C $(PRG_REL_DIR) -f \$$(BASE_DIR)/mk/prg.mk \\"; \
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echo " REP_DIR=$(REP_DIR) \\"; \
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echo " PRG_REL_DIR=$(PRG_REL_DIR) \\"; \
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echo " BUILD_BASE_DIR=$(BUILD_BASE_DIR) \\"; \
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echo " ARCHIVES=\"\$$(sort \$$(DEP_A_$(TARGET).prg))\" \\"; \
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echo " SHARED_LIBS=\"\$$(sort \$$(DEP_SO_$(TARGET).prg))\" \\"; \
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echo " SHELL=$(SHELL) \\"; \
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echo " INSTALL_DIR=\"\$$(INSTALL_DIR)\" \\"; \
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echo " DEBUG_DIR=\"\$$(DEBUG_DIR)\""; \
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echo "") >> $(LIB_DEP_FILE)
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#
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# Make 'all' depend on the target, which triggers the building of the target
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# and the traversal of the target's library dependencies. But we only do so
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# if the target does not depend on any library with unsatisfied build
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# requirements. In such a case, the target cannot be linked anyway.
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#
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@(echo "ifeq (\$$(filter \$$(DEP_A_$(TARGET).prg:.lib.a=) \$$(DEP_SO_$(TARGET).prg:.lib.so=) $(LIBS),\$$(INVALID_DEPS)),)"; \
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echo "all: $(TARGET).prg"; \
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echo "endif") >> $(LIB_DEP_FILE)
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#
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# Normally, if the target depends on a library, which cannot be built (such
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# libraries get recorded in the 'INVALID_DEPS' variable), we skip the target
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# altogether. In some cases, however, we want to build all non-invalid
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# libraries of a target regardless of whether the final target can be created
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# or not. (i.e., for implementing the mechanism for building all libraries,
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# see 'base/src/lib/target.mk'). This use case is supported via the
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# 'FORCE_BUILD_LIBS' variable. If the 'target.mk' file assigns the value
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# 'yes' to this variable, we build all non-invalid libraries regardless of
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# the validity of the final target.
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#
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ifeq ($(FORCE_BUILD_LIBS),yes)
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@(echo ""; \
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echo "all: \$$(addsuffix .lib,\$$(filter-out \$$(INVALID_DEPS), $(LIBS)))") >> $(LIB_DEP_FILE)
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endif
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