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1 #! /bin/sh
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2 #
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3 # Update a local Subversion tree from the GCC repository, with an emphasis
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4 # on treating generated files correctly, so that autoconf, gperf et
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5 # al are not required for the ``end'' user.
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6 #
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7 # (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005 Free Software Foundation
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8 # Originally by Gerald Pfeifer <pfeifer@dbai.tuwien.ac.at>, August 1998.
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9 #
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10 # This script is Free Software, and it can be copied, distributed and
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11 # modified as defined in the GNU General Public License. A copy of
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12 # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
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13 #
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14 #
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15 # By default all command-line options are passed to `svn update` in
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16 # addition to $UPDATE_OPTIONS (defined below). If the first parameter
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17 # reads --nostdflags, $UPDATE_OPTIONS as well as this parameter itself
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18 # are omitted.
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19 #
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20 # If the first parameter reads --patch, the second parameter is considered
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21 # a patch file.
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22 #
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23 # If the first parameter is --touch, no svn operation will be performed,
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24 # only generated files that appear to be out of date in the local tree
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25 # will be touched.
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26 #
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27 # If the first parameter is --list, a list of the generated files and
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28 # their dependencies will be printed; --help prints this message.
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29 #
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30 # If the first parameter is --silent, this script prints nothing other
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31 # than error messages; the second parameter is then interpreted as above.
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32 #
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33 # Examples:
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34 #
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35 # contrib/gcc_update -r 8712
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36 # contrib/gcc_update --patch some-patch
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37 # contrib/gcc_update --touch
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38 # contrib/gcc_update --list
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39
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40
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41 # SVN command
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42 GCC_SVN=${GCC_SVN-${SVN-svn}}
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43 # Default options used when updating via SVN (none).
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44 UPDATE_OPTIONS=""
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45
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46 ######## Anything below shouldn't be changed by regular users.
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47
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48 # Arrange for the value of $0 to be available for functions
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49 self=$0
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50
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51 # This function prints its arguments to standard output unless
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52 # "silent" is set.
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53 unset silent
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54 chat () {
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55 if [ -z "$silent" ]; then
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56 echo "$@"
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57 fi
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58 }
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59
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60 # This function prints a list of all generated files, along with their
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61 # dependencies. Note that only one target is supported per line: the
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62 # colon is stripped from the output.
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63 files_and_dependencies () {
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64 sed -e 's/ *#.*//' -e '/^$/d' -e 's/://' <<\EOF
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65 # fixincludes
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66 fixincludes/configure: fixincludes/configure.ac fixincludes/aclocal.m4
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67 fixincludes/config.h.in: fixincludes/configure.ac fixincludes/aclocal.m4
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68 # intl library
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69 intl/plural.c: intl/plural.y
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70 intl/configure: intl/configure.ac intl/aclocal.m4
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71 intl/config.h.in: intl/configure.ac intl/aclocal.m4
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72 # Now, proceed to gcc automatically generated files
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73 gcc/configure: gcc/configure.ac
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74 gcc/cstamp-h.in: gcc/configure.ac
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75 gcc/config.in: gcc/cstamp-h.in
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76 gcc/fixinc/fixincl.x: gcc/fixinc/fixincl.tpl gcc/fixinc/inclhack.def
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77 gcc/config/arm/arm-tune.md: gcc/config/arm/arm-cores.def gcc/config/arm/gentune.sh
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78 # And then, language-specific files
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79 gcc/cp/cfns.h: gcc/cp/cfns.gperf
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80 gcc/java/keyword.h: gcc/java/keyword.gperf
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81 # testsuite
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82 # Without this, _Pragma3.c can have a false negative.
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83 gcc/testsuite/gcc.dg/cpp/_Pragma3.c: gcc/testsuite/gcc.dg/cpp/mi1c.h
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84 # Similarly, without this, you will see:
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85 # direct2s.c:35: warning: current file is older than direct2.c
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86 gcc/testsuite/gcc.dg/cpp/direct2s.c: gcc/testsuite/gcc.dg/cpp/direct2.c
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87 # And libraries, at last
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88 libbanshee/configure: libbanshee/configure.ac
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89 libmudflap/configure: libmudflap/configure.ac
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90 libobjc/configure: libobjc/configure.ac
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91 zlib/aclocal.m4: zlib/configure.ac zlib/acinclude.m4
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92 zlib/Makefile.in: zlib/Makefile.am zlib/configure.ac zlib/aclocal.m4
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93 zlib/configure: zlib/configure.ac zlib/aclocal.m4
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94 fastjar/aclocal.m4: fastjar/configure.ac
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95 fastjar/Makefile.in: fastjar/Makefile.am fastjar/configure.ac fastjar/aclocal.m4
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96 fastjar/configure: fastjar/configure.ac fastjar/aclocal.m4
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97 boehm-gc/aclocal.m4: boehm-gc/configure.ac
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98 boehm-gc/Makefile.in: boehm-gc/Makefile.am boehm-gc/configure.ac boehm-gc/aclocal.m4
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99 boehm-gc/configure: boehm-gc/configure.ac boehm-gc/aclocal.m4
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100 libada/configure: libada/configure.ac
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101 libffi/aclocal.m4: libffi/configure.ac libffi/acinclude.m4
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102 libffi/Makefile.in: libffi/Makefile.am libffi/configure.ac libffi/aclocal.m4
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103 libffi/configure: libffi/configure.ac libffi/aclocal.m4
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104 libffi/fficonfig.h.in: libffi/configure.ac libffi/aclocal.m4
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105 libgfortran/aclocal.m4: libgfortran/configure.ac libgfortran/acinclude.m4
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106 libgfortran/Makefile.in: libgfortran/Makefile.am libgfortran/configure.ac libgfortran/aclocal.m4
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107 libgfortran/configure: libgfortran/configure.ac libgfortran/aclocal.m4
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108 libjava/aclocal.m4: libjava/configure.ac
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109 libjava/Makefile.in: libjava/Makefile.am libjava/configure.ac libjava/aclocal.m4
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110 libjava/configure: libjava/configure.ac libjava/aclocal.m4
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111 libjava/libltdl/aclocal.m4: libjava/libltdl/configure.ac libjava/libltdl/acinclude.m4
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112 libjava/libltdl/Makefile.in: libjava/libltdl/Makefile.am libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
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113 libjava/libltdl/configure: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
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114 libjava/libltdl/config-h.in: libjava/libltdl/configure.ac libjava/libltdl/aclocal.m4
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115 libcpp/aclocal.m4: libcpp/configure.ac
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116 libcpp/Makefile.in: libcpp/configure.ac libcpp/aclocal.m4
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117 libcpp/configure: libcpp/configure.ac libcpp/aclocal.m4
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118 libgomp/aclocal.m4: libgomp/configure.ac libgomp/acinclude.m4
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119 libgomp/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
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120 libgomp/testsuite/Makefile.in: libgomp/Makefile.am libgomp/aclocal.m4
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121 libgomp/configure: libgomp/configure.ac libgomp/aclocal.m4
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122 libgomp/config.h.in: libgomp/configure.ac libgomp/aclocal.m4
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123 # Top level
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124 Makefile.in: Makefile.tpl Makefile.def
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125 configure: configure.ac config/acx.m4
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126 EOF
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127 }
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128
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129
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130 # This function touches generated files such that the ``end'' user does
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131 # not have to rebuild them.
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132 touch_files () {
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133 rm -f Makefile.$$
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134 echo 'all: \' > Makefile.$$
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135 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
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136 echo '; @true' >> Makefile.$$
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137 files_and_dependencies | sed 's, ,: ,' >> Makefile.$$
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138 files_and_dependencies | sed 's, .*, \\,' >> Makefile.$$
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139 echo ':' >> Makefile.$$
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140 echo ' @for f in $? $@; do test -f $$f || exit 0; done; \' >> Makefile.$$
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141 echo ' echo Touching $@...; \' >> Makefile.$$
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142 chat ' echo Touching $@... 1>&2; \' >> Makefile.$$
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143 echo ' touch $@' >> Makefile.$$
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144 files_and_dependencies | sed 's,[^ ]* ,,;s,$, :,' >> Makefile.$$
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145
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146 # We would have to explicitly shut off the "Entering... Leaving..."
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147 # messages through "--no-print-directory" to handle the case when
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148 # we were called from a recursive invocation (i.e. "$(MAKE)" in a
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149 # Makefile, not just make). Passing only "-s" doesn't help then,
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150 # because make has helpfully added "-w" to MAKEFLAGS automatically.
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151 # Unfortunately we do not require GNU make other than for building
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152 # and testing, so let's just grep known text explicitly echoed by
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153 # the rule.
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154 while ${MAKE-make} -s -f Makefile.$$ all | grep Touching > /dev/null; do
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155 sleep 1
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156 done 2>&1
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157 rm -f Makefile.$$
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158 }
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159
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160
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161 # Whenever we update the tree or install a patch, we may be modifying
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162 # this script. By re-execing it, we ensure that the appropriate
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163 # dependencies and rules will be used.
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164 touch_files_reexec () {
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165 chat "Adjusting file timestamps"
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166 exec ${CONFIG_SHELL-/bin/sh} $self ${silent+"--silent"} --touch
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167 }
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168
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169 # This functions applies a patch to an existing tree.
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170 apply_patch () {
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171 if [ -f "$1" ]; then
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172 echo "Applying patch file $1"
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173 case $1 in
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174 *gz)
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175 gzip -d -c "$1" | patch -p1 ;;
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176 *bz2)
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177 bzip2 -d -c "$1" | patch -p1 ;;
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178 *)
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179 patch -p1 < "$1";;
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180 esac
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181 fi
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182 touch_files_reexec
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183 }
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184
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185 # Check whether this indeed looks like a local tree.
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186 if [ ! -f gcc/version.c ]; then
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187 echo "This does not seem to be a GCC tree!"
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188 exit
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189 fi
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190
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191 case "$1" in
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192 --silent)
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193 silent=t
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194 shift
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195 ;;
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196 esac
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197
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198 case "$1" in
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199 # First of all, check whether we are going to process a patch.
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200 --patch)
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201 if test "$#" != 2; then
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202 echo "$1" expects only one argument >&2
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203 exit 1
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204 fi
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205 apply_patch "${2}"
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206 exit $?
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207 ;;
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208
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209 --touch)
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210 if test "$#" != 1; then
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211 echo "$1" does not expect any argument >&2
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212 exit 1
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213 fi
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214 touch_files
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215 exit $?
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216 ;;
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217
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218 --list)
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219 if test "$#" != 1; then
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220 echo "$1" does not expect any argument >&2
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221 exit 1
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222 fi
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223 files_and_dependencies | sed 's/ /: /'
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224 exit $?
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225 ;;
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226
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227 --help)
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228 sed -e '1,2d' -e '/^UPDATE_OPTIONS=/{i\
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229 \
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230
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231 p
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232 }' \
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233 -e '/^$/,$d' -e 's/#//' -e 's/^ //' < $0
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234 exit $?
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235 ;;
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236
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237 esac
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238
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239 # Check whether this indeed looks like a local SVN tree.
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240 if [ ! -d .svn ]; then
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241 echo "This does not seem to be a GCC SVN tree!"
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242 exit
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243 fi
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244
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245 # Check command-line options
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246 if [ x"${1}"x = x"--nostdflags"x ]; then
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247 shift
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248 else
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249 set -- $UPDATE_OPTIONS ${1+"$@"}
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250 fi
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251
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252 chat "Updating SVN tree"
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253
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254 $GCC_SVN ${silent+-q} --non-interactive update ${1+"$@"}
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255 if [ $? -ne 0 ]; then
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256 (touch_files_reexec)
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257 echo "SVN update of full tree failed." >&2
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258 exit 1
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259 fi
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260
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261 rm -f LAST_UPDATED gcc/REVISION
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262
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263 revision=`svn info | awk '/Revision:/ { print $2 }'`
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264 branch=`svn info | sed -ne "/URL:/ {
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265 s,.*/trunk,trunk,
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266 s,.*/branches/,,
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267 s,.*/tags/,,
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268 p
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269 }"`
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270 {
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271 date
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272 echo "`TZ=UTC date` (revision $revision)"
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273 } > LAST_UPDATED
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274
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275 echo "[$branch revision $revision]" > gcc/REVISION
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276
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277 touch_files_reexec
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