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_dbg("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_dbg("run " + argv + "\n")
  35                 return self.waitForActivation(his)
  36
  37
  38         def setContinue(self):
  39                 his = self.getHistoryLen()
  40                 self.feed_dbg("cont\n");
  41                 return self.waitForActivation(his)
  42
  43         def setStepover(self):
  44                 his = self.getHistoryLen()
  45                 self.feed_dbg("next\n");
  46                 return self.waitForActivation(his)
  47
  48         def setStepin(self):
  49                 his = self.getHistoryLen()
  50                 self.feed_dbg("step\n");
  51                 return self.waitForActivation(his)
  52
  53         def setQuit(self):
  54                 self.feed_dbg("quit\n")
  55                 self.waitForNewline()
  56                 self.feed_dbg("y\n");
  57
  58         def setBreakpoint(self, file, lineno, condition=None):
  59                 his = self.getHistoryLen()
  60                 if condition==None:
  61                         self.feed_dbg("break %s:%s\n" % (file, str(lineno)))
  62                 else:
  63                         self.feed_dbg("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
  70                 if response[0:10] == "Breakpoint":
  71                         return string.split(response)[1].strip()
  72                 if response[0:5] == "(gdb)":
  73                         return None
  74                 if response[0:14] == "No source file":
  75                         self.feed_dbg("n\n");
  76                         return None
  77                 if response[0:3] == "No ":
  78                         return None
  79
  80                 return NotImplementedError()
  81
  82         def delBreakpoint(self, breakpoint):
  83                 self.feed_dbg("del breakpoint %s\n" % (breakpoint,))
  84
  85         def getBreakpoints(self):
  86                 starthis = self.getHistoryLen()
  87                 self.feed_dbg("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                                 print "Warning GdbTerminal.getBreakpoints at line", line
 106                                 i += 1
 107                                 continue
 108
 109                         splits = string.split(line)
 110                         no = splits[0]
 111                         pos = splits[-1]
 112                         [file,lineno] = string.split(pos,":")
 113                         cond = None
 114
 115                         if i+1<len(bplines) and rxbp2.search(bplines[i+1]):
 116                                 i +=1
 117                                 line = bplines[i]
 118                                 pre,cond = string.split(line,"if")
 119                                 cond = cond.strip()
 120
 121                         bpnts += [[no, file, lineno, cond]]
 122                         i += 1
 123
 124                 return bpnts
 125
 126
 127
 128         def getExpression(self, expr):
 129
 130                 his = self.getHistoryLen()
 131                 self.feed_dbg("print " + expr + "\n")
 132
 133                 rx = re.compile("^\(gdb\) $")
 134                 his, response = self.waitForRx(rx, his)
 135
 136                 answer = self.history[his-1]
 137
 138                 if len(string.split(answer, "=")) == 1:
 139                         return answer.strip()
 140
 141                 split = string.split(answer, "=")
 142                 return string.join(split[1:], "=").strip()
 143
 144
 145         def waitForActivation(self, his):
 146
 147                 self.setActive(False)
 148                 rx = re.compile("^\(gdb\) $")
 149                 his, reponse = self.waitForRx(rx,his)
 150                 self.setActive(True)
 151
 152                 if self.history[his-1][0:2]=="\x1a\x1a":
 153                         tuples = string.split(self.history[his-1][2:], ":")
 154                         return tuples[0:2]
 155
 156                 return None
 157
 158
 159
 160 if __name__ == "__main__":
 161
 162
 163         dbgterm = GdbTerminal(string.join(sys.argv[1:]))
 164         dbgwnd = DbgTerminal.DbgWindow(dbgterm)
 165
 166         DbgTerminal.launchDebugger(dbgwnd, dbgterm)
 167         gtk.main()
 168
 169
 170
 171