4ee3cbf382
Use Linux specific linker trick to allow relocation of built tree. relative rpath use $ORIGIN to reference libraries in other modules by relative path. fix rel. RPATH
49 lines
1.9 KiB
Plaintext
49 lines
1.9 KiB
Plaintext
# CONFIG.Common.linuxCommon
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#
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# Definitions for linux target builds
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# Sites may override these definitions in CONFIG_SITE.Common.linuxCommon
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#-------------------------------------------------------
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# Include definitions common to all Unix targets
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include $(CONFIG)/os/CONFIG.Common.UnixCommon
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OS_CLASS = Linux
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# Define _GNU_SOURCE and _DEFAULT_SOURCE for maximum portability
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POSIX_CPPFLAGS = -D_GNU_SOURCE -D_DEFAULT_SOURCE
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POSIX_LDLIBS = -lpthread
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OP_SYS_CPPFLAGS += -Dlinux
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OP_SYS_LDLIBS += -lrt -ldl
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# Use -rdynamic to maximize symbols available for stacktrace
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OP_SYS_LDFLAGS += -rdynamic
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# Linker flags for static & shared-library builds
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STATIC_LDFLAGS_YES= -Wl,-Bstatic
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STATIC_LDFLAGS_NO=
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STATIC_LDLIBS_YES= -Wl,-Bdynamic
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# Set runtime path for shared libraries if USE_RPATH=YES and STATIC_BUILD=NO
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SHRLIBDIR_RPATH_LDFLAGS_YES_NO = $(SHRLIB_DEPLIB_DIRS:%=-Wl,-rpath,%)
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SHRLIBDIR_RPATH_LDFLAGS_ORIGIN_NO = $(shell $(MAKERPATH) -O '\$$ORIGIN' -F $(FINAL_DIR) -R $(LINKER_ORIGIN_ROOT) $(SHRLIB_DEPLIB_DIRS))
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SHRLIBDIR_LDFLAGS += \
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$(SHRLIBDIR_RPATH_LDFLAGS_$(LINKER_USE_RPATH)_$(STATIC_BUILD))
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# Set runtime path for products if USE_RPATH=YES and STATIC_BUILD=NO
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PRODDIR_RPATH_LDFLAGS_YES_NO = $(PROD_DEPLIB_DIRS:%=-Wl,-rpath,%)
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PRODDIR_RPATH_LDFLAGS_ORIGIN_NO = $(shell $(MAKERPATH) -O '\$$ORIGIN' -F $(FINAL_DIR) -R $(LINKER_ORIGIN_ROOT) $(PROD_DEPLIB_DIRS))
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PRODDIR_LDFLAGS += \
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$(PRODDIR_RPATH_LDFLAGS_$(LINKER_USE_RPATH)_$(STATIC_BUILD))
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# Link libraries controlled by COMMANDLINE_LIBRARY
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# The newest Linux versions only need readline, older ones need both
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# readline and ncurses, and the oldest need readline and curses
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LDLIBS_READLINE = -lreadline
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LDLIBS_READLINE_NCURSES = -lreadline -lncurses
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LDLIBS_READLINE_CURSES = -lreadline -lcurses
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#--------------------------------------------------
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# Allow site overrides
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-include $(CONFIG)/os/CONFIG_SITE.Common.linuxCommon
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-include $(CONFIG)/os/CONFIG_SITE.$(EPICS_HOST_ARCH).linuxCommon
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