eval-skip.exp

这个是LINUX下的GDB调度工具的源码

# Copyright 1998, 1999 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  

# Please email any bugs, comments, and/or additions to this file to:
# [e-mail]

# This file was written by Elena Zannoni ([e-mail])

# This file is part of the gdb testsuite

#
# tests to cover evaluate_subexp_standard with the EVAL_SKIP flag set.
# this happens for instance when there is short circuit evaluation in the && and ||
# operators, or in the non returned part of a (x ? y: z) expression.
# the part that is not evaluated is parsed and evaluated anyway, but with
# the EVAL_SKIP flag set
# 
# source file "int-type.c"
#


if $tracelevel then {
        strace $tracelevel
}

# Check to see if we have an executable to test.  If not, then either we
# haven't tried to compile one, or the compilation failed for some reason.
# In either case, just notify the user and skip the tests in this file.

set testfile "int-type"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-w}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
    }

if [get_compiler_info $binfile] {
    return -1
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}


if ![runto_main] then {
    perror "couldn't run to breakpoint"
    continue
}

gdb_test "set variable x=14" "" "set variable x=14"
gdb_test "set variable y=2" "" "set variable y=2"
gdb_test "set variable z=2" "" "set variable z=2"
gdb_test "set variable w=3" "" "set variable w=3"

send_gdb "print (0 && (x+y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x+y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x+y))" }
    timeout           { fail "(timeout) print value of (0 && (x+y))" }
  }


send_gdb "print (0 && (x-y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x-y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x-y))" }
    timeout           { fail "(timeout) print value of (0 && (x-y))" }
  }


send_gdb "print (0 && (x*y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x*y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x*y))" }
    timeout           { fail "(timeout) print value of (0 && (x*y))" }
  }



send_gdb "print (0 && (x/y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x/y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x/y))" }
    timeout           { fail "(timeout) print value of (0 && (x/y))" }
  }


send_gdb "print (0 && (x%y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x%y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x%y))" }
    timeout           { fail "(timeout) print value of (0 && (x%y))" }
  }


send_gdb "print (0 && (x&&y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x&&y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x&&y))" }
    timeout           { fail "(timeout) print value of (0 && (x&&y))" }
  }



send_gdb "print (0 && (x||y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x||y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x||y))" }
    timeout           { fail "(timeout) print value of (0 && (x||y))" }
  }



send_gdb "print (0 && (x&y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x&y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x&y))" }
    timeout           { fail "(timeout) print value of (0 && (x&y))" }
  }


send_gdb "print (0 && (x|y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x|y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x|y))" }
    timeout           { fail "(timeout) print value of (0 && (x|y))" }
  }


send_gdb "print (0 && (x^y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x^y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x^y))" }
    timeout           { fail "(timeout) print value of (0 && (x^y))" }
  }



send_gdb "print (0 && (x < y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x < y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x < y))" }
    timeout           { fail "(timeout) print value of (0 && (x < y))" }
  }


send_gdb "print (0 && (x <= y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x <= y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x <= y))" }
    timeout           { fail "(timeout) print value of (0 && (x <= y))" }
  }



send_gdb "print (0 && (x>y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x>y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x>y))" }
    timeout           { fail "(timeout) print value of (0 && (x>y))" }
  }


send_gdb "print (0 && (x>=y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x>=y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x>=y))" }
    timeout           { fail "(timeout) print value of (0 && (x>=y))" }
  }



send_gdb "print (0 && (x==y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x==y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x==y))" }
    timeout           { fail "(timeout) print value of (0 && (x==y))" }
  }


send_gdb "print (0 && (x!=y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x!=y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x!=y))" }
    timeout           { fail "(timeout) print value of (0 && (x!=y))" }
  }


send_gdb "print (0 && (x<<31))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x<<31))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x<<31))" }
    timeout           { fail "(timeout) print value of (0 && (x<<31))" }
  }


send_gdb "print (0 && (x>>31))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x>>31))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x>>31))" }
    timeout           { fail "(timeout) print value of (0 && (x>>31))" }
  }



send_gdb "print (0 && (!x))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (!x))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (!x))" }
    timeout           { fail "(timeout) print value of (0 && (!x))" }
  }


send_gdb "print (0 && (~x))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (~x))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (~x))" }
    timeout           { fail "(timeout) print value of (0 && (~x))" }
  }

send_gdb "print (0 && (-x))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (-x))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (-x))" }
    timeout           { fail "(timeout) print value of (0 && (-x))" }
  }


send_gdb "print (0 && (x++))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x++))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x++))" }
    timeout           { fail "(timeout) print value of (0 && (x++))" }
  }


send_gdb "print (0 && (++x))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (++x))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (++x))" }
    timeout           { fail "(timeout) print value of (0 && (++x))" }
  }


send_gdb "print (0 && (x--))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x--))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x--))" }
    timeout           { fail "(timeout) print value of (0 && (x--))" }
  }


send_gdb "print (0 && (--x))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (--x))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (--x))" }
    timeout           { fail "(timeout) print value of (0 && (--x))" }
  }

send_gdb "print (0 && (x+=7))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x+=7))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x+=7))" }
    timeout           { fail "(timeout) print value of (0 && (x+=7))" }
  }

send_gdb "print (0 && (x=y))\n"
gdb_expect {
    -re ".$decimal = $false\r\n$gdb_prompt $" {
        pass "print value of (0 && (x=y))"
      }
    -re ".*$gdb_prompt $" { fail "print value of (0 && (x=y))" }
    timeout           { fail "(timeout) print value of (0 && (x=y))" }
  }

gdb_exit
return 0