1 # 2 # Copyright (c) 2005, 2011, Oracle and/or its affiliates. All rights reserved. 3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 # 5 # This code is free software; you can redistribute it and/or modify it 6 # under the terms of the GNU General Public License version 2 only, as 7 # published by the Free Software Foundation. 8 # 9 # This code is distributed in the hope that it will be useful, but WITHOUT 10 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 11 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 12 # version 2 for more details (a copy is included in the LICENSE file that 13 # accompanied this code). 14 # 15 # You should have received a copy of the GNU General Public License version 16 # 2 along with this work; if not, write to the Free Software Foundation, 17 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 18 # 19 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 20 # or visit www.oracle.com if you need additional information or have any 21 # questions. 22 # 23 # 24 25 # Rules to build signal interposition library, used by vm.make 26 27 # libjsig[_g].so: signal interposition library 28 JSIG = jsig 29 LIBJSIG = lib$(JSIG).so 30 31 JSIG_G = $(JSIG)$(G_SUFFIX) 32 LIBJSIG_G = lib$(JSIG_G).so 33 34 LIBJSIG_DEBUGINFO = lib$(JSIG).debuginfo 35 LIBJSIG_G_DEBUGINFO = lib$(JSIG_G).debuginfo 36 37 JSIGSRCDIR = $(GAMMADIR)/src/os/$(Platform_os_family)/vm 38 39 DEST_JSIG = $(JDK_LIBDIR)/$(LIBJSIG) 40 DEST_JSIG_DEBUGINFO = $(JDK_LIBDIR)/$(LIBJSIG_DEBUGINFO) 41 42 LIBJSIG_MAPFILE = $(MAKEFILES_DIR)/mapfile-vers-jsig 43 44 # On Linux we really dont want a mapfile, as this library is small 45 # and preloaded using LD_PRELOAD, making functions private will 46 # cause problems with interposing. See CR: 6466665 47 # LFLAGS_JSIG += $(MAPFLAG:FILENAME=$(LIBJSIG_MAPFILE)) 48 49 LFLAGS_JSIG += -D_GNU_SOURCE -D_REENTRANT $(LDFLAGS_HASH_STYLE) 50 51 # DEBUG_BINARIES overrides everything, use full -g debug information 52 ifeq ($(DEBUG_BINARIES), true) 53 JSIG_DEBUG_CFLAGS = -g 54 endif 55 56 $(LIBJSIG): $(JSIGSRCDIR)/jsig.c $(LIBJSIG_MAPFILE) 57 @echo Making signal interposition lib... 58 $(QUIETLY) $(CC) $(SYMFLAG) $(ARCHFLAG) $(SHARED_FLAG) $(PICFLAG) \ 59 $(LFLAGS_JSIG) $(JSIG_DEBUG_CFLAGS) -o $@ $< -ldl 60 $(QUIETLY) [ -f $(LIBJSIG_G) ] || { ln -s $@ $(LIBJSIG_G); } 61 ifneq ($(OBJCOPY),) 62 $(QUIETLY) $(OBJCOPY) --only-keep-debug $@ $(LIBJSIG_DEBUGINFO) 63 $(QUIETLY) $(OBJCOPY) --add-gnu-debuglink=$(LIBJSIG_DEBUGINFO) $@ 64 ifeq ($(STRIP_POLICY),all_strip) 65 $(QUIETLY) $(STRIP) $@ 66 else 67 ifeq ($(STRIP_POLICY),min_strip) 68 $(QUIETLY) $(STRIP) -g $@ 69 # implied else here is no stripping at all 70 endif 71 endif 72 [ -f $(LIBJSIG_G_DEBUGINFO) ] || { ln -s $(LIBJSIG_DEBUGINFO) $(LIBJSIG_G_DEBUGINFO); } 73 endif 74 75 install_jsig: $(LIBJSIG) 76 @echo "Copying $(LIBJSIG) to $(DEST_JSIG)" 77 $(QUIETLY) test -f $(LIBJSIG_DEBUGINFO) && \ 78 cp -f $(LIBJSIG_DEBUGINFO) $(DEST_JSIG_DEBUGINFO) 79 $(QUIETLY) cp -f $(LIBJSIG) $(DEST_JSIG) && echo "Done" 80 81 .PHONY: install_jsig