1# Copyright (C) 2004-2020 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
21SHLIB_SOLINK = @shlib_base_name@.so
22SHLIB_OBJS = @shlib_objs@
23SHLIB_DIR = @multilib_dir@
24SHLIB_SLIBDIR_QUAL = @shlib_slibdir_qual@
25
26# Use unwind-dw2-fde-dip
27LIBUNWIND = $(srcdir)/unwind-dw2.c $(srcdir)/unwind-dw2-fde-dip.c
28
29SHLIBUNWIND_SOVERSION = 7
30SHLIBUNWIND_SONAME = @shlib_base_name@.so.$(SHLIBUNWIND_SOVERSION)
31
32SHLIBUNWIND_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
45SHLIBUNWIND_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