member-ptr.exp

gdb-6.8 Linux下的调试程序 最新版本

# Copyright 1998, 1999, 2003, 2004, 2006, 2007, 2008
# Free Software Foundation, Inc.

# This file is part of the gdb testsuite

# 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 3 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, see <http://www.gnu.org/licenses/>.

# Tests for pointer-to-member support
# Written by Satish Pai <[e-mail]> 1997-08-19
# Rewritten by Michael Chastain <[e-mail]> 2004-01-11

set vhn "\\$\[0-9\]+"

if $tracelevel then {
    strace $tracelevel
}

if { [skip_cplus_tests] } { continue }

set prms_id 0
set bug_id 0

set testfile "member-ptr"
set srcfile ${testfile}.cc
set binfile ${objdir}/${subdir}/${testfile}

if [get_compiler_info ${binfile} "c++"] {
    return -1
}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug c++}] != "" } {
     untested member-ptr.exp
     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_breakpoint [gdb_get_line_number "Breakpoint 1 here"]
gdb_continue_to_breakpoint "continue to pmi = NULL"

# ======================
# pointer to member data
# ======================

# ptype on pointer to data member

set name "ptype pmi (A::j)"
gdb_test_multiple "ptype pmi" $name {
    -re "type = int A::\\*\r\n$gdb_prompt $" {
	pass $name
    }
}

# print pointer to data member

set name "print pmi (A::j) "
gdb_test_multiple "print pmi" $name {
    -re "$vhn = &A::j\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) &A::j\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) ?&A::j ?\\+ ?1 bytes\r\n$gdb_prompt $" {
	# gcc 2.95.3 -gdwarf-2
	kfail "gdb/NNNN" $name
    }
    -re "$vhn = &A::j ?\\+ ?1 bytes\r\n$gdb_prompt $" {
	# gcc 2.95.3 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "$vhn = not implemented: member type in c_val_print\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-11 05:33:21 -gdwarf-2
	# gcc HEAD 2004-01-11 05:33:21 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "$vhn = \\(int ?\\( A::\\*\\)\\) 536870920\r\n$gdb_prompt $" {
	# the value is 0x20000008 hex.   0x20000000 is an internal flag.
	# Use '|' to add in more values as needed.
	# hpacc A.03.45
	kfail "gdb/NNNN" $name
    }
}

# print dereferenced pointer to data member

set name "print a.*pmi (A::j)"
gdb_test_multiple "print a.*pmi" $name {
    -re "$vhn = 121\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = 855638016\r\n$gdb_prompt $" {
	# gcc 2.95.3 -gdwarf-2
	# gcc 2.95.3 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# print dereferenced pointer to data member
# this time, dereferenced through a pointer

set name "print a_p->*pmi (A::j)"
gdb_test_multiple "print a_p->*pmi" $name {
    -re "$vhn = 121\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = 855638016\r\n$gdb_prompt $" {
	# gcc 2.95.3 -gdwarf-2
	# gcc 2.95.3 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# set the pointer to a different data member

set name "set var pmi = &A::jj"
gdb_test_multiple "set var pmi = &A::jj" $name {
    -re "Invalid cast.\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "set var pmi = &A::jj\r\n$gdb_prompt $" {
	# I have to match the echo'ed input explicitly here.
	# If I leave it out, the pattern becomes too general
	# and matches anything that ends in "$gdb_prompt $".
	pass $name
    }
}

# print the pointer again

set name "print pmi (A::jj)"
gdb_test_multiple "print pmi" $name {
    -re "$vhn = &A::jj\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \\(int ?\\( ?A::\\*\\)\\) &A::jj\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = not implemented: member type in c_val_print\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-11 05:33:21 -gdwarf-2
	# gcc HEAD 2004-01-11 05:33:21 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "$vhn = \\(int ?\\( A::\\*\\)\\) 536870924\r\n$gdb_prompt $" {
	# the value is 0x20000008 hex.   0x20000000 is an internal flag.
	# Use '|' to add in more values as needed.
	# hpacc A.03.45
	kfail "gdb/NNNN" $name
    }
}

# print dereferenced pointer to data member again

set name "print a.*pmi (A::jj)"
gdb_test_multiple "print a.*pmi" $name {
    -re "$vhn = 1331\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# set the pointer to data member back to A::j

set name "set var pmi = &A::j"
gdb_test_multiple "set var pmi = &A::j" $name {
    -re "Invalid cast.\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
    -re "set var pmi = &A::j\r\n$gdb_prompt $" {
	# I have to match the echo'ed input explicitly here.
	# If I leave it out, the pattern becomes too general
	# and matches anything that ends in "$gdb_prompt $".
	pass $name
    }
}

# print dereferenced pointer to data member yet again (extra check, why not)

set name "print a.*pmi (A::j) (again)"
gdb_test_multiple "print a.*pmi" $name {
    -re "$vhn = 121\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Set the data member pointed to.

set name "print a.*pmi = 33"
gdb_test_multiple "print a.*pmi = 33" $name {
    -re "$vhn = 33\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Now check that the data really was changed

set name "print a.*pmi (A::j) (33)"
gdb_test_multiple "print a.*pmi" $name {
    -re "$vhn = 33\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Double-check by printing a.

set name "print a (j = 33)"
gdb_test_multiple "print a" $name {
    -re "$vhn = \{c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10, (_vptr.A|_vptr\\$) = ($hex|$hex <A virtual table>)\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10, Virtual table at $hex\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 33, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 121, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Set the data member pointed to, using ->*

set name "print a_p->*pmi = 44"
gdb_test_multiple "print a_p->*pmi = 44" $name {
    -re "$vhn = 44\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Check that the data really was changed

set name "print a_p->*pmi (44)"
gdb_test_multiple "print a_p->*pmi" $name {
    -re "$vhn = 44\r\n$gdb_prompt $" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# Double-check by printing a.

set name "print a (j = 44)"
gdb_test_multiple "print a" $name {
    -re "$vhn = \{c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10, (_vptr.A|_vptr\\$) = ($hex|$hex <A virtual table>)\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10, Virtual table at $hex\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 44, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" {
	pass $name
    }
    -re "$vhn = \{(_vptr.A|_vptr\\$) = $hex, c = 120 'x', j = 121, jj = 1331, (static|static int) s = 10\}\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2
	# gcc HEAD 2004-01-10 -gstabs+
	kfail "gdb/NNNN" $name
    }
}

# ptype the dereferenced pointer to member.

set name "ptype a.*pmi"
gdb_test_multiple "ptype a.*pmi" $name {
    -re "type = int\r\n$gdb_prompt" {
	pass $name
    }
    -re "not implemented: member types in unpack_long\r\n$gdb_prompt $" {
	# gcc HEAD 2004-01-10 -gdwarf-2