gdb/regformats/regdat.sh

   1 #!/bin/sh -u
   2
   3 # Register protocol definitions for GDB, the GNU debugger.
   4 # Copyright 2001, 2002, 2007, 2008, 2009, 2010, 2011
   5 # Free Software Foundation, Inc.
   6 #
   7 # This file is part of GDB.
   8 #
   9 # This program is free software; you can redistribute it and/or modify
  10 # it under the terms of the GNU General Public License as published by
  11 # the Free Software Foundation; either version 3 of the License, or
  12 # (at your option) any later version.
  13 #
  14 # This program is distributed in the hope that it will be useful,
  15 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  16 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17 # GNU General Public License for more details.
  18 #
  19 # You should have received a copy of the GNU General Public License
  20 # along with this program.  If not, see <http://www.gnu.org/licenses/>.
  21
  22 move_if_change ()
  23 {
  24     file=$1
  25     if test -r ${file} && cmp -s "${file}" new-"${file}"
  26     then
  27         echo "${file} unchanged." 1>&2
  28     else
  29         mv new-"${file}" "${file}"
  30         echo "${file} updated." 1>&2
  31     fi
  32 }
  33
  34 # Format of the input files
  35 read="type entry"
  36
  37 do_read ()
  38 {
  39     type=""
  40     entry=""
  41     while read line
  42     do
  43         if test "${line}" = ""
  44         then
  45             continue
  46         elif test "${line}" = "#" -a "${comment}" = ""
  47         then
  48             continue
  49         elif expr "${line}" : "#" > /dev/null
  50         then
  51             comment="${comment}
  52 ${line}"
  53         else
  54
  55             # The semantics of IFS varies between different SH's.  Some
  56             # treat ``::' as three fields while some treat it as just too.
  57             # Work around this by eliminating ``::'' ....
  58             line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`"
  59
  60             OFS="${IFS}" ; IFS="[:]"
  61             eval read ${read} <<EOF
  62 ${line}
  63 EOF
  64             IFS="${OFS}"
  65
  66             # .... and then going back through each field and strip out those
  67             # that ended up with just that space character.
  68             for r in ${read}
  69             do
  70                 if eval test \"\${${r}}\" = \"\ \"
  71                 then
  72                     eval ${r}=""
  73                 fi
  74             done
  75
  76             break
  77         fi
  78     done
  79     if [ -n "${type}" ]
  80     then
  81         true
  82     else
  83         false
  84     fi
  85 }
  86
  87 if test ! -r $1; then
  88   echo "$0: Could not open $1." 1>&2
  89   exit 1
  90 fi
  91
  92 copyright ()
  93 {
  94 cat <<EOF
  95 /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */
  96
  97 /* A register protocol for GDB, the GNU debugger.
  98    Copyright 2001, 2002 Free Software Foundation, Inc.
  99
 100    This file is part of GDB.
 101
 102    This program is free software; you can redistribute it and/or modify
 103    it under the terms of the GNU General Public License as published by
 104    the Free Software Foundation; either version 3 of the License, or
 105    (at your option) any later version.
 106
 107    This program is distributed in the hope that it will be useful,
 108    but WITHOUT ANY WARRANTY; without even the implied warranty of
 109    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 110    GNU General Public License for more details.
 111
 112    You should have received a copy of the GNU General Public License
 113    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 114
 115 /* This file was created with the aid of \`\`regdat.sh'' and \`\`$1''.  */
 116
 117 EOF
 118 }
 119
 120
 121 exec > new-$2
 122 copyright $1
 123 echo '#include "server.h"'
 124 echo '#include "regdef.h"'
 125 echo
 126 offset=0
 127 i=0
 128 name=x
 129 xmltarget=x
 130 xmlarch=x
 131 xmlosabi=x
 132 expedite=x
 133 exec < $1
 134 while do_read
 135 do
 136   if test "${type}" = "name"; then
 137     name="${entry}"
 138     echo "struct reg regs_${name}[] = {"
 139     continue
 140   elif test "${type}" = "xmltarget"; then
 141     xmltarget="${entry}"
 142     continue
 143   elif test "${type}" = "xmlarch"; then
 144     xmlarch="${entry}"
 145     continue
 146   elif test "${type}" = "osabi"; then
 147     xmlosabi="${entry}"
 148     continue
 149   elif test "${type}" = "expedite"; then
 150     expedite="${entry}"
 151     continue
 152   elif test "${name}" = x; then
 153     echo "$0: $1 does not specify \`\`name''." 1>&2
 154     exit 1
 155   else
 156     echo "  { \"${entry}\", ${offset}, ${type} },"
 157     offset=`expr ${offset} + ${type}`
 158     i=`expr $i + 1`
 159   fi
 160 done
 161
 162 echo "};"
 163 echo
 164 echo "const char *expedite_regs_${name}[] = { \"`echo ${expedite} | sed 's/,/", "/g'`\", 0 };"
 165 if test "${xmltarget}" = x; then
 166   if test "${xmlarch}" = x && test "${xmlosabi}" = x; then
 167     echo "const char *xmltarget_${name} = 0;"
 168   else
 169     echo "const char *xmltarget_${name} = \"@<target>\\"
 170     if test "${xmlarch}" != x; then
 171       echo "<architecture>${xmlarch}</architecture>\\"
 172     fi
 173     if test "${xmlosabi}" != x; then
 174       echo "<osabi>${xmlosabi}</osabi>\\"
 175     fi
 176     echo "</target>\";"
 177   fi
 178 else
 179   echo "const char *xmltarget_${name} = \"${xmltarget}\";"
 180 fi
 181 echo
 182
 183 cat <<EOF
 184 void
 185 init_registers_${name} ()
 186 {
 187     set_register_cache (regs_${name},
 188                         sizeof (regs_${name}) / sizeof (regs_${name}[0]));
 189     gdbserver_expedite_regs = expedite_regs_${name};
 190     gdbserver_xmltarget = xmltarget_${name};
 191 }
 192 EOF
 193
 194 # close things off
 195 exec 1>&2
 196 move_if_change $2