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1 # |
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2 # Copyright (c) 1998, 2005, Oracle and/or its affiliates. All rights reserved. |
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3 # DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 # |
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5 # This code is free software; you can redistribute it and/or modify it |
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6 # under the terms of the GNU General Public License version 2 only, as |
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7 # published by the Free Software Foundation. Oracle designates this |
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8 # particular file as subject to the "Classpath" exception as provided |
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9 # by Oracle in the LICENSE file that accompanied this code. |
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10 # |
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11 # This code is distributed in the hope that it will be useful, but WITHOUT |
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12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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13 # FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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14 # version 2 for more details (a copy is included in the LICENSE file that |
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15 # accompanied this code). |
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16 # |
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17 # You should have received a copy of the GNU General Public License version |
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18 # 2 along with this work; if not, write to the Free Software Foundation, |
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19 # Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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20 # |
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21 # Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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22 # or visit www.oracle.com if you need additional information or have any |
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23 # questions. |
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24 # |
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25 |
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26 # |
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27 # Makefile for linking with mapfiles. |
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28 # |
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29 # NOTE: Not using a mapfile will expose all your extern functions and |
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30 # extern data symbols as part of your interface, so unless your |
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31 # extern names are safe from being mistaken as names from other |
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32 # libraries, you better use a mapfile, or use a unique naming |
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33 # convention on all your extern symbols. |
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34 # |
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35 # The mapfile will establish versioning by defining the exported interface. |
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36 # |
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37 # The mapfile can also force certain .o files or elf sections into the |
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38 # the different segments of the resulting library/program image. |
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39 # |
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40 # The macro FILES_m can contain any number of mapfiles. |
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41 # |
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42 |
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43 # Always make sure 'all' is the default rule |
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44 mapfile_default_rule: all |
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45 |
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46 ifeq ($(PLATFORM), solaris) |
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47 |
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48 ifeq ($(VARIANT), OPT) |
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49 # OPT build MUST have a mapfile? |
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50 ifndef FILES_m |
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51 FILES_m = mapfile-vers |
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52 endif |
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53 |
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54 # If we are re-ordering functions in this solaris library, we need to make |
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55 # sure that -xF is added to the compile lines. This option is critical and |
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56 # enables the functions to be reordered. |
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57 ifdef FILES_reorder |
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58 CFLAGS_OPT += -xF |
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59 CXXFLAGS_OPT += -xF |
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60 endif |
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61 |
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62 INIT += $(TEMPDIR)/mapfile-vers |
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63 |
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64 $(TEMPDIR)/mapfile-vers : $(FILES_m) $(FILES_reorder) |
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65 $(prep-target) |
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66 $(CAT) $(FILES_m) > $@ |
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67 ifdef FILES_reorder |
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68 $(SED) -e 's=OUTPUTDIR=$(OUTPUTDIR)=' $(FILES_reorder) >> $@ |
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69 endif |
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70 endif # VARIANT |
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71 |
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72 ifndef LDNOMAP |
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73 LDMAPFLAGS_OPT = -M$(TEMPDIR)/mapfile-vers |
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74 LDMAPFLAGS_DBG = $(FILES_m:%=-M%) |
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75 endif |
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76 |
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77 endif # PLATFORM |
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78 |
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79 ifeq ($(PLATFORM), linux) |
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80 |
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81 ifeq ($(VARIANT), OPT) |
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82 # OPT build MUST have a mapfile? |
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83 ifndef FILES_m |
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84 FILES_m = mapfile-vers |
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85 endif |
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86 endif # VARIANT |
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87 |
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88 ifndef LDNOMAP |
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89 LDMAPFLAGS_OPT = $(FILES_m:%=-Xlinker -version-script=%) |
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90 LDMAPFLAGS_DBG = $(FILES_m:%=-Xlinker -version-script=%) |
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91 endif |
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92 |
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93 endif # PLATFORM |
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94 |
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95 LDFLAGS_OPT += $(LDMAPFLAGS_OPT) |
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96 LDFLAGS_DBG += $(LDMAPFLAGS_DBG) |
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97 |