GdbTerminal.py

   1 #!/usr/bin/python
   2 #shuber, 2008-06-04
   3
   4 __author__ = "shuber"
   5
   6
   7 import gtk
   8 import os
   9 import re
  10 import string
  11 import sys
  12 import time
  13
  14 import DbgTerminal
  15
  16
  17 class GdbTerminal (DbgTerminal.DbgTerminal):
  18
  19
  20         def __init__(self, clientCmd):
  21                 DbgTerminal.DbgTerminal.__init__(self, clientCmd)
  22
  23         def getArgv(self):
  24                 return ["gdb", "--fullname", string.split(self.clientCmd)[0]]
  25
  26         def setPty(self, pty):
  27                 ttyname = os.ttyname(pty)
  28                 self.feed_child("set inferior-tty %s\n" % (ttyname,))
  29
  30         def setRun(self):
  31
  32                 his = self.getHistoryLen()
  33                 argv = string.join(string.split(self.clientCmd)[1:])
  34                 self.feed_child("run " + argv + "\n")
  35                 return self.waitForActivation(his)
  36
  37         def setContinue(self):
  38                 his = self.getHistoryLen()
  39                 self.feed_child("cont\n");
  40                 return self.waitForActivation(his)
  41
  42         def setStepover(self):
  43                 his = self.getHistoryLen()
  44                 self.feed_child("next\n");
  45                 return self.waitForActivation(his)
  46
  47         def setStepin(self):
  48                 his = self.getHistoryLen()
  49                 self.feed_child("step\n");
  50                 return self.waitForActivation(his)
  51
  52         def setQuit(self):
  53                 self.feed_child("quit\n")
  54                 self.waitForNewline()
  55                 self.feed_child("y\n");
  56
  57         def setBreakpoint(self, file, lineno, condition=None):
  58                 his = self.getHistoryLen()
  59                 if condition==None:
  60                         self.feed_child("break %s:%s\n" % (file, str(lineno)))
  61                 else:
  62                         self.feed_child("break %s:%s if %s\n" % \
  63                                         (file, str(lineno), condition))
  64
  65                 rx = re.compile("^Breakpoint |^No |^\(gdb\) ")
  66                 his, response = self.waitForRx(rx, his)
  67
  68                 if response[0:10] == "Breakpoint":
  69                         return string.split(response)[1].strip()
  70
  71                 if response[0:14] == "No source file":
  72                         self.feed_child("n\n");
  73                         return None
  74
  75                 #Wait again for gdb
  76                 if response[0:5] != "(gdb)":
  77                         his, response = self.waitForRx(rx,his)
  78
  79                 return None
  80
  81
  82         def delBreakpoint(self, breakpoint):
  83                 self.feed_child("del breakpoint %s\n" % (breakpoint,))
  84
  85         def getBreakpoints(self):
  86                 starthis = self.getHistoryLen()
  87                 self.feed_child("info breakpoints\n")
  88
  89                 rx = re.compile("^\(gdb\) ")
  90                 endhis, response = self.waitForRx(rx, starthis)
  91
  92
  93                 rxbp1 = re.compile("^\d+\s+breakpoint")
  94                 rxbp2 = re.compile("^\tstop only if")
  95
  96                 bpnts = []
  97                 bplines = self.history[starthis+1:endhis]
  98                 i = 0
  99
 100                 #Parse the resulting lines
 101                 while i<len(bplines):
 102                         line = bplines[i]
 103
 104                         if not rxbp1.search(line):
 105                                 i += 1
 106                                 continue
 107
 108                         splits = string.split(line)
 109                         no = splits[0]
 110                         pos = splits[-1]
 111                         [file,lineno] = string.split(pos,":")
 112                         cond = None
 113
 114                         if i+1<len(bplines) and rxbp2.search(bplines[i+1]):
 115                                 i +=1
 116                                 line = bplines[i]
 117                                 pre,cond = string.split(line,"if")
 118                                 cond = cond.strip()
 119
 120                         bpnts += [[no, file, lineno, cond]]
 121                         i += 1
 122
 123                 return bpnts
 124
 125
 126
 127         def getExpression(self, expr):
 128
 129                 his = self.getHistoryLen()
 130                 self.feed_child("print " + expr + "\n")
 131
 132                 rx = re.compile("^\(gdb\) $")
 133                 his, response = self.waitForRx(rx, his)
 134
 135                 answer = self.history[his-1]
 136
 137                 if len(string.split(answer, "=")) == 1:
 138                         return answer.strip()
 139
 140                 split = string.split(answer, "=")
 141                 return string.join(split[1:], "=").strip()
 142
 143
 144         def waitForActivation(self, his=None):
 145
 146                 self.setActive(False)
 147                 rx = re.compile("^\(gdb\) $")
 148                 his, reponse = self.waitForRx(rx,his)
 149                 self.setActive(True)
 150
 151                 if self.history[his-1][0:2]=="\x1a\x1a":
 152                         tuples = string.split(self.history[his-1][2:], ":")
 153                         return tuples[0:2]
 154
 155                 return None
 156
 157
 158
 159 if __name__ == "__main__":
 160
 161
 162         dbgterm = GdbTerminal(string.join(sys.argv[1:]))
 163         dbgwnd = DbgTerminal.DbgWindow(dbgterm)
 164
 165         gtk.main()
 166
 167
 168
 169