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                 his = self.getHistoryLen()
  29                 self.feed_child("set inferior-tty %s\n" % (ttyname,))
  30                 self.waitForActivation(his)
  31
  32         def setRun(self):
  33                 his = self.getHistoryLen()
  34                 argv = string.join(string.split(self.clientCmd)[1:])
  35                 self.feed_child("run " + argv + "\n")
  36                 return self.waitForActivation(his)
  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                 answer = None
  70
  71                 if response[0:10] == "Breakpoint":
  72                         answer = string.split(response)[1].strip()
  73
  74                 #Wants an answer: "No"
  75                 if response[0:14] == "No source file":
  76                         self.feed_child("n\n");
  77
  78                 #Wait again for (gdb)...
  79                 self.waitForActivation(his)
  80
  81                 return answer
  82
  83
  84         def delBreakpoint(self, breakpoint):
  85                 his = self.getHistoryLen()
  86                 self.feed_child("del breakpoint %s\n" % (breakpoint,))
  87                 self.waitForActivation(his)
  88
  89         def getBreakpoints(self):
  90                 starthis = self.getHistoryLen()
  91                 self.feed_child("info breakpoints\n")
  92                 endhis, response = self.__waitForPrompt(starthis)
  93
  94                 rxbp = re.compile("^\d+\s+breakpoint")
  95                 rxpos = re.compile("^.* at \S+:\d+$")
  96                 rxcond = re.compile("^\tstop only if")
  97
  98                 bpnts = []
  99                 bplines = self.history[starthis+1:endhis]
 100                 i = 0
 101
 102                 #Parse the resulting lines
 103                 while i<len(bplines):
 104                         line = bplines[i]
 105
 106                         if not rxbp.search(line):
 107                                 i += 1
 108                                 continue
 109
 110                         #Get number of breakpoint
 111                         no = string.split(line)[0]
 112
 113                         #This line does not contain the file!
 114                         if not rxpos.search(line):
 115                                 i += 1
 116                                 line = bplines[i]
 117
 118                         pos = string.split(line)[-1]
 119                         [file,lineno] = string.split(pos,":")
 120                         cond = None
 121
 122                         if i+1<len(bplines) and rxcond.search(bplines[i+1]):
 123                                 i +=1
 124                                 line = bplines[i]
 125                                 pre,cond = string.split(line,"if")
 126                                 cond = cond.strip()
 127
 128                         bpnts += [[no, file, lineno, cond]]
 129                         i += 1
 130
 131                 return bpnts
 132
 133
 134
 135         def getExpression(self, expr):
 136
 137                 his = self.getHistoryLen()
 138                 self.feed_child("print " + expr + "\n")
 139                 his, response = self.__waitForPrompt(his)
 140                 answer = self.history[his-1]
 141
 142                 if len(string.split(answer, "=")) == 1:
 143                         return answer.strip()
 144
 145                 split = string.split(answer, "=")
 146                 return string.join(split[1:], "=").strip()
 147
 148
 149         def waitForActivation(self, starthis):
 150
 151                 self.setActive(False)
 152                 endhis, response = self.__waitForPrompt(starthis)
 153                 self.setActive(True)
 154
 155                 for his in reversed(range(starthis+1,endhis)):
 156                         if self.history[his][0:2]=="\x1a\x1a":
 157                                 tuples = string.split(self.history[his][2:], ":")
 158                                 return tuples[0:2]
 159
 160                 return None
 161
 162
 163         def __waitForPrompt(self, his):
 164                 rx = re.compile("^\(gdb\) ")
 165                 return self.waitForRx(rx,his)
 166
 167
 168
 169
 170 if __name__ == "__main__":
 171
 172
 173         dbgterm = GdbTerminal(string.join(sys.argv[1:]))
 174         dbgwnd = DbgTerminal.DbgWindow(dbgterm)
 175
 176         gtk.main()
 177
 178
 179
 180