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      1 # Copyright (C) 2004-2022 Free Software Foundation, Inc.
      2 #
      3 # This file is part of GCC.
      4 #
      5 # GCC is free software; you can redistribute it and/or modify
      6 # it under the terms of the GNU General Public License as published by
      7 # the Free Software Foundation; either version 3, or (at your option)
      8 # any later version.
      9 #
     10 # GCC is distributed in the hope that it will be useful,
     11 # but WITHOUT ANY WARRANTY; without even the implied warranty of
     12 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     13 # GNU General Public License for more details.
     14 #
     15 # You should have received a copy of the GNU General Public License
     16 # along with GCC; see the file COPYING3.  If not see
     17 # <http://www.gnu.org/licenses/>.
     18 
     19 # Build libunwind for ELF with the GNU linker.
     20 
     21 SHLIB_SOLINK = @shlib_base_name@.so
     22 SHLIB_OBJS = @shlib_objs@
     23 SHLIB_DIR = @multilib_dir@
     24 SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
     25 
     26 # Use unwind-dw2-fde-dip
     27 LIBUNWIND = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-dip.c
     28 
     29 SHLIBUNWIND_SOVERSION = 7
     30 SHLIBUNWIND_SONAME = @shlib_base_name@.so.$(SHLIBUNWIND_SOVERSION)
     31 
     32 SHLIBUNWIND_LINK = $(CC) $(LIBGCC2_CFLAGS) -shared \
     33 	-nodefaultlibs -Wl,-h,$(SHLIBUNWIND_SONAME) \
     34 	-Wl,-z,text -Wl,-z,defs -o $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).tmp \
     35 	@multilib_flags@ $(SHLIB_OBJS) -lc && \
     36 	rm -f $(SHLIB_DIR)/$(SHLIB_SOLINK) && \
     37 	if [ -f $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) ]; then \
     38 	  mv -f $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) \
     39 		$(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).backup; \
     40 	else true; fi && \
     41 	mv $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME).tmp \
     42 	   $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) && \
     43 	$(LN_S) $(SHLIBUNWIND_SONAME) $(SHLIB_DIR)/$(SHLIB_SOLINK)
     44 
     45 SHLIBUNWIND_INSTALL = \
     46 	$(SHELL) $(srcdir)/mkinstalldirs $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL); \
     47 	$(INSTALL_DATA) $(SHLIB_DIR)/$(SHLIBUNWIND_SONAME) \
     48 	  $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIBUNWIND_SONAME); \
     49 	rm -f $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK); \
     50 	$(LN_S) $(SHLIBUNWIND_SONAME) \
     51 	  $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_SOLINK)
     52