diff options
Diffstat (limited to 'Makerules')
| -rw-r--r-- | Makerules | 130 |
1 files changed, 65 insertions, 65 deletions
diff --git a/Makerules b/Makerules index 7f4b5fd16e..84afdd53a9 100644 --- a/Makerules +++ b/Makerules @@ -286,6 +286,71 @@ define sed-remove-objpfx endef endif +# Shared library building. + +ifeq (yes,$(build-shared)) + +# Process the shlib-versions file, which tells us what shared library +# version numbers to use when we install shared objects on this system. +-include $(common-objpfx)soversions.mk +$(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makerules \ + $(common-objpfx)config.make + sed 's/#.*$$//' $< | while read conf versions; do \ + test -n "$$versions" || continue; \ + case '$(config-machine)-$(config-vendor)-$(config-os)' in $$conf)\ + for v in $$versions; do \ + lib="$${v%%=*}"; if eval "test -z \"\$$vers_lib$$lib\""; then \ + eval vers_lib$${lib}=yes; \ + echo $$lib.so-version=.$${v##$$lib=}; fi; \ + done ;; esac; done > $@T + mv -f $@T $@ + +# Get $(version) defined with the release version number. +-include $(common-objpfx)version.mk + + +# Pattern rule to build a shared object from an archive of PIC objects. +# This must come after the installation rules so Make doesn't try to +# build shared libraries in place from the installed *_pic.a files. +# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies +# on other shared objects. +lib%.so: lib%_pic.a; $(build-shlib) + +ifeq ($(have-no-whole-archive),yes) +no-whole-archive = -Wl,--no-whole-archive +else +no-whole-archive = +endif + +define build-shlib +$(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \ + -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \ + $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \ + -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \ + -Wl,--whole-archive $^ $(no-whole-archive) \ + $(LDLIBS-$(@F:lib%.so=%).so) +endef + +# Don't try to use -lc when making libc.so itself. +# Also omits crti.o and crtn.o, which we do not want +# since we define our own `.init' section specially. +LDFLAGS-c.so = -nostdlib -nostartfiles +# Give libc.so an entry point and make it directly runnable itself. +LDFLAGS-c.so += -e __libc_main +# Use our own special initializer and finalizer files for libc.so. +elfobjdir := $(firstword $(objdir) $(patsubst ../$(subdir),.,$(..)elf)) +$(common-objpfx)libc.so: $(elfobjdir)/soinit.so \ + $(common-objpfx)libc_pic.a \ + $(elfobjdir)/sofini.so $(elfobjdir)/ld.so + $(build-shlib) + +ifdef libc.so-version +$(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so + rm -f $@ + ln -s $(<F) $@ || ln $< $@ +endif +endif + # Figure out the source filenames in this directory. override sources := $(addsuffix .c,$(filter-out $(elided-routines),\ @@ -452,71 +517,6 @@ $(AR) cru$(verbose) $(@:$(objpfx)%=%) \ $(RANLIB) $@ endef -# Shared library building. - -ifeq (yes,$(build-shared)) - -# Process the shlib-versions file, which tells us what shared library -# version numbers to use when we install shared objects on this system. --include $(common-objpfx)soversions.mk -$(common-objpfx)soversions.mk: $(..)shlib-versions $(..)Makerules \ - $(common-objpfx)config.make - sed 's/#.*$$//' $< | while read conf versions; do \ - test -n "$$versions" || continue; \ - case '$(config-machine)-$(config-vendor)-$(config-os)' in $$conf)\ - for v in $$versions; do \ - lib="$${v%%=*}"; if eval "test -z \"\$$vers_lib$$lib\""; then \ - eval vers_lib$${lib}=yes; \ - echo $$lib.so-version=.$${v##$$lib=}; fi; \ - done ;; esac; done > $@T - mv -f $@T $@ - -# Get $(version) defined with the release version number. --include $(common-objpfx)version.mk - - -# Pattern rule to build a shared object from an archive of PIC objects. -# This must come after the installation rules so Make doesn't try to -# build shared libraries in place from the installed *_pic.a files. -# $(LDLIBS-%.so) may contain -l switches to generate run-time dependencies -# on other shared objects. -lib%.so: lib%_pic.a; $(build-shlib) - -ifeq ($(have-no-whole-archive),yes) -no-whole-archive = -Wl,--no-whole-archive -else -no-whole-archive = -endif - -define build-shlib -$(LINK.o) -shared -o $@ $(sysdep-LDFLAGS) $(config-LDFLAGS) \ - -Wl,-soname=lib$(libprefix)$(@F:lib%.so=%).so$($(@F)-version) \ - $(LDFLAGS.so) $(LDFLAGS-$(@F:lib%.so=%).so) \ - -L$(subst :, -L,$(rpath-link)) -Wl,-rpath-link=$(rpath-link) \ - -Wl,--whole-archive $^ $(no-whole-archive) \ - $(LDLIBS-$(@F:lib%.so=%).so) -endef - -# Don't try to use -lc when making libc.so itself. -# Also omits crti.o and crtn.o, which we do not want -# since we define our own `.init' section specially. -LDFLAGS-c.so = -nostdlib -nostartfiles -# Give libc.so an entry point and make it directly runnable itself. -LDFLAGS-c.so += -e __libc_main -# Use our own special initializer and finalizer files for libc.so. -elfobjdir := $(firstword $(objdir) $(patsubst ../$(subdir),.,$(..)elf)) -$(common-objpfx)libc.so: $(elfobjdir)/soinit.so \ - $(common-objpfx)libc_pic.a \ - $(elfobjdir)/sofini.so $(elfobjdir)/ld.so - $(build-shlib) - -ifdef libc.so-version -$(common-objpfx)libc.so$(libc.so-version): $(common-objpfx)libc.so - rm -f $@ - ln -s $(<F) $@ || ln $< $@ -endif -endif - # Installation. # $(install-lib) are installed from the object directory into $(libdir); 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