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                 rxbp = re.compile("^\d+\s+breakpoint")
  94                 rxpos = re.compile("^.* at \S+:\d+$")
  95                 rxcond = 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 rxbp.search(line):
 106                                 i += 1
 107                                 continue
 108
 109                         #Get number of breakpoint
 110                         no = string.split(line)[0]
 111
 112                         #This line does not contain the file!
 113                         if not rxpos.search(line):
 114                                 i += 1
 115                                 line = bplines[i]
 116
 117                         pos = string.split(line)[-1]
 118                         [file,lineno] = string.split(pos,":")
 119                         cond = None
 120
 121                         if i+1<len(bplines) and rxcond.search(bplines[i+1]):
 122                                 i +=1
 123                                 line = bplines[i]
 124                                 pre,cond = string.split(line,"if")
 125                                 cond = cond.strip()
 126
 127                         bpnts += [[no, file, lineno, cond]]
 128                         i += 1
 129
 130                 return bpnts
 131
 132
 133
 134         def getExpression(self, expr):
 135
 136                 his = self.getHistoryLen()
 137                 self.feed_child("print " + expr + "\n")
 138
 139                 rx = re.compile("^\(gdb\) $")
 140                 his, response = self.waitForRx(rx, his)
 141
 142                 answer = self.history[his-1]
 143
 144                 if len(string.split(answer, "=")) == 1:
 145                         return answer.strip()
 146
 147                 split = string.split(answer, "=")
 148                 return string.join(split[1:], "=").strip()
 149
 150
 151         def waitForActivation(self, starthis=None):
 152
 153                 if starthis == None:
 154                         starthis = self.getHistoryLen()
 155
 156                 self.setActive(False)
 157                 rx = re.compile("^\(gdb\) $")
 158                 endhis, reponse = self.waitForRx(rx,starthis)
 159                 self.setActive(True)
 160
 161                 for his in reversed(range(starthis+1,endhis)):
 162                         if self.history[his][0:2]=="\x1a\x1a":
 163                                 tuples = string.split(self.history[his][2:], ":")
 164                                 return tuples[0:2]
 165
 166                 return None
 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