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44 lines
1.2 KiB
Plaintext
44 lines
1.2 KiB
Plaintext
# Build a shared libgcc library for ELF with symbol versioning
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# with the Solaris linker.
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SHLIB_LDFLAGS = -Wl,-h,$(SHLIB_SONAME) -Wl,-z,text -Wl,-z,defs \
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-Wl,-M,$(SHLIB_MAP)
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ifeq ($(enable_shared),yes)
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# Linker mapfile to enforce direct binding to libgcc_s unwinder
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# (PR target/59788).
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# Emit v2 mapfile syntax if possible, otherwise ld -z guidance complains
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# every time the mapfile is used.
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libgcc-unwind.map: libgcc-std.ver
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ifeq ($(solaris_ld_v2_maps),yes)
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@(echo '$$mapfile_version 2'; \
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echo "SYMBOL_SCOPE {"; \
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for f in `grep _Unwind_ $< | sort`; do \
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echo " $$f { FLAGS = EXTERN DIRECT };"; \
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done; \
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echo "};" ) > $@
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else
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@(echo "{"; \
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for f in `grep _Unwind_ $< | sort`; do \
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echo " $$f = EXTERN DIRECT;"; \
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done; \
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echo "};" ) > $@
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endif
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# Copy libgcc-unwind.map to the place where gcc will look for it at build-time.
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install-libgcc-unwind-map-forbuild: libgcc-unwind.map
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dest=$(gcc_objdir)/tmp$$$$-$<; \
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cp $< $$dest; \
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chmod a+r $$dest; \
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sh $(srcdir)/../move-if-change $$dest $(gcc_objdir)/$<
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all: install-libgcc-unwind-map-forbuild
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install-libgcc-unwind-map: libgcc-unwind.map
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$(INSTALL_DATA) $< $(DESTDIR)$(slibdir)
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install: install-libgcc-unwind-map
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endif
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