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      1 # Build a shared libgcc library for PECOFF with a DEF file
      2 # with the GNU linker.
      3 #
      4 # mkmap-flat.awk is used with the pe_dll option to produce a DEF instead
      5 # of an ELF map file.
      6 #
      7 # Warning: If SHLIB_SOVERSION or SHLIB_SONAME are updated, LIBGCC_SONAME
      8 # in mingw32.h and SHLIB_MKMAP_OPTS below must be updated also.
      9 
     10 SHLIB_EXT = .dll
     11 SHLIB_IMPLIB = @shlib_base_name@.a
     12 SHLIB_SOVERSION = 1
     13 SHLIB_SONAME = @shlib_base_name@_$(EH_MODEL)-$(SHLIB_SOVERSION)$(SHLIB_EXT)
     14 SHLIB_MAP = @shlib_map_file@
     15 SHLIB_OBJS = @shlib_objs@
     16 SHLIB_DIR = @multilib_dir@/shlib
     17 SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
     18 # SHLIB_DLLDIR is defined by including one of either t-dlldir or t-dlldir-x
     19 # (native/cross build respectively) in the tmake_file list in
     20 # libgcc/config.host.
     21 ifndef SHLIB_DLLDIR
     22 $(error SHLIB_DLLDIR must be defined)
     23 endif
     24 ifndef SHLIB_PTHREAD_CFLAG
     25 SHLIB_PTHREAD_CFLAG =
     26 endif
     27 ifndef SHLIB_PTHREAD_LDFLAG
     28 SHLIB_PTHREAD_LDFLAG =
     29 endif
     30 ifndef SHLIB_MCFGTHREAD_LIBS
     31 SHLIB_MCFGTHREAD_LIBS =
     32 endif
     33 
     34 SHLIB_LINK = $(LN_S) -f $(SHLIB_MAP) $(SHLIB_MAP).def && \
     35 	if [ ! -d $(SHLIB_DIR) ]; then \
     36 		mkdir $(SHLIB_DIR); \
     37 	else true; fi && \
     38 	$(CC) $(LIBGCC2_CFLAGS) $(SHLIB_PTHREAD_CFLAG) \
     39 	-shared -nodefaultlibs \
     40 	$(SHLIB_MAP).def \
     41 	-Wl,--out-implib,$(SHLIB_DIR)/$(SHLIB_IMPLIB).tmp \
     42 	-o $(SHLIB_DIR)/$(SHLIB_SONAME).tmp @multilib_flags@ \
     43 	$(SHLIB_OBJS) ${SHLIB_PTHREAD_LDFLAG} $(SHLIB_LC) \
     44 	$(SHLIB_MCFGTHREAD_LIBS) && \
     45 	if [ -f $(SHLIB_DIR)/$(SHLIB_SONAME) ]; then \
     46 	  mv -f $(SHLIB_DIR)/$(SHLIB_SONAME) \
     47 		$(SHLIB_DIR)/$(SHLIB_SONAME).backup; \
     48 	else true; fi && \
     49 	mv $(SHLIB_DIR)/$(SHLIB_SONAME).tmp $(SHLIB_DIR)/$(SHLIB_SONAME) && \
     50 	mv $(SHLIB_DIR)/$(SHLIB_IMPLIB).tmp $(SHLIB_DIR)/$(SHLIB_IMPLIB)
     51 SHLIB_INSTALL = \
     52 	$(mkinstalldirs) $(DESTDIR)$(SHLIB_DLLDIR) \
     53 	  $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL); \
     54 	$(INSTALL) $(SHLIB_DIR)/$(SHLIB_SONAME) \
     55 	  $(DESTDIR)$(SHLIB_DLLDIR)/$(SHLIB_SONAME); \
     56 	$(INSTALL_DATA) $(SHLIB_DIR)/$(SHLIB_IMPLIB) \
     57 	  $(DESTDIR)$(slibdir)$(SHLIB_SLIBDIR_QUAL)/$(SHLIB_IMPLIB)
     58 SHLIB_MKMAP = $(srcdir)/mkmap-flat.awk
     59 # We'd like to use SHLIB_SONAME here too, but shlib_base_name
     60 # does not get substituted before mkmap-flat.awk is run.
     61 SHLIB_MKMAP_OPTS = -v pe_dll=libgcc_s_$(EH_MODEL)-$(SHLIB_SOVERSION)$(SHLIB_EXT)
     62 SHLIB_MAPFILES = libgcc-std.ver $(srcdir)/config/i386/libgcc-cygming.ver
     63