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
  38         def setContinue(self):
  39                 his = self.getHistoryLen()
  40                 self.feed_child("cont\n");
  41                 return self.waitForActivation(his)
  42
  43         def setStepover(self):
  44                 his = self.getHistoryLen()
  45                 self.feed_child("next\n");
  46                 return self.waitForActivation(his)
  47
  48         def setStepin(self):
  49                 his = self.getHistoryLen()
  50                 self.feed_child("step\n");
  51                 return self.waitForActivation(his)
  52
  53         def setQuit(self):
  54                 self.feed_child("quit\n")
  55                 self.waitForNewline()
  56                 self.feed_child("y\n");
  57
  58         def setBreakpoint(self, file, lineno, condition=None):
  59                 his = self.getHistoryLen()
  60                 if condition==None:
  61                         self.feed_child("break %s:%s\n" % (file, str(lineno)))
  62                 else:
  63                         self.feed_child("break %s:%s if %s\n" % \
  64                                         (file, str(lineno), condition))
  65
  66                 rx = re.compile("^Breakpoint |^No|^\(gdb\) ")
  67                 his, response = self.waitForRx(rx, his)
  68
  69                 print his, response
  70
  71                 if response[0:10] == "Breakpoint":
  72                         return string.split(response)[1].strip()
  73                 if response[0:5] == "(gdb)":
  74                         return None
  75                 if response[0:14] == "No source file":
  76                         self.feed_child("n\n");
  77                         return None
  78                 if response[0:3] == "No ":
  79                         return None
  80
  81                 return NotImplementedError()
  82
  83         def delBreakpoint(self, breakpoint):
  84                 self.feed_child("del breakpoint %s\n" % (breakpoint,))
  85
  86         def getBreakpoints(self):
  87                 starthis = self.getHistoryLen()
  88                 self.feed_child("info breakpoints\n")
  89
  90                 rx = re.compile("^\(gdb\) ")
  91                 endhis, response = self.waitForRx(rx, starthis)
  92
  93
  94                 rxbp1 = re.compile("^\d+\s+breakpoint")
  95                 rxbp2 = re.compile("^\tstop only if")
  96
  97                 bpnts = []
  98                 bplines = self.history[starthis+1:endhis]
  99                 i = 0
 100
 101                 #Parse the resulting lines
 102                 while i<len(bplines):
 103                         line = bplines[i]
 104
 105                         if not rxbp1.search(line):
 106                                 print "Warning GdbTerminal.getBreakpoints at line", line
 107                                 i += 1
 108                                 continue
 109
 110                         splits = string.split(line)
 111                         no = splits[0]
 112                         pos = splits[-1]
 113                         [file,lineno] = string.split(pos,":")
 114                         cond = None
 115
 116                         if i+1<len(bplines) and rxbp2.search(bplines[i+1]):
 117                                 i +=1
 118                                 line = bplines[i]
 119                                 pre,cond = string.split(line,"if")
 120                                 cond = cond.strip()
 121
 122                         bpnts += [[no, file, lineno, cond]]
 123                         i += 1
 124
 125                 return bpnts
 126
 127
 128
 129         def getExpression(self, expr):
 130
 131                 his = self.getHistoryLen()
 132                 self.feed_child("print " + expr + "\n")
 133
 134                 rx = re.compile("^\(gdb\) $")
 135                 his, response = self.waitForRx(rx, his)
 136
 137                 answer = self.history[his-1]
 138
 139                 if len(string.split(answer, "=")) == 1:
 140                         return answer.strip()
 141
 142                 split = string.split(answer, "=")
 143                 return string.join(split[1:], "=").strip()
 144
 145
 146         def waitForActivation(self, his):
 147
 148                 self.setActive(False)
 149                 rx = re.compile("^\(gdb\) $")
 150                 his, reponse = self.waitForRx(rx,his)
 151                 self.setActive(True)
 152
 153                 if self.history[his-1][0:2]=="\x1a\x1a":
 154                         tuples = string.split(self.history[his-1][2:], ":")
 155                         return tuples[0:2]
 156
 157                 return None
 158
 159
 160
 161 if __name__ == "__main__":
 162
 163
 164         dbgterm = GdbTerminal(string.join(sys.argv[1:]))
 165         dbgwnd = DbgTerminal.DbgWindow(dbgterm)
 166
 167         gtk.main()
 168
 169
 170
 171