gdb/testsuite/gdb.cp/class2.exp

# Copyright 2003-2021 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 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/>.

if { [skip_cplus_tests] } { continue }


standard_testfile .cc

# Create and source the file that provides information about the compiler
# used to compile the test case.
if [get_compiler_info "c++"] {
    return -1
}

if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug c++}]} {
    return -1
}

# Start with "set print object off" and "set print symbol off".

gdb_test_no_output "set print object off"
gdb_test_no_output "set print symbol off"

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

get_debug_format

gdb_test "break [gdb_get_line_number "marker return 0"]" \
    "Breakpoint.*at.* file .*" ""

gdb_test "continue" "Breakpoint .* at .*" ""

# Access the "A" object.

gdb_test "print alpha" \
    "= {.*a1 = 100.*}" \
    "print alpha at marker return 0"

# Access the "B" object.

gdb_test "print beta" \
    "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
    "print beta at marker return 0"

# Access the "A" object through an "A *" pointer.

gdb_test_multiple "print * aap" "print * aap at marker return 0" {
    -re "= {.*a1 = 100.*}\r\n$gdb_prompt $" {
	# gcc 2.95.3 -gstabs+
	# gcc 3.3.2 -gdwarf-2
	# gcc 3.3.2 -gstabs+
	pass "print * aap at marker return 0"
    }
    -re "= {.*a1 = .*}\r\n$gdb_prompt $" {
	if { [test_compiler_info gcc-2-*] && [test_debug_format "DWARF 2"] } {
	    # gcc 2.95.3 -gdwarf-2
	    setup_kfail "gdb/1465" "*-*-*"
	}
	fail "print * aap at marker return 0"
    }
}

# Access the "B" object through a "B *" pointer.

gdb_test "print * bbp" \
    "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
    "print * bbp at marker return 0"

# Access the "B" object through an "A *" pointer.
# This should print using the "A" type.

gdb_test_multiple "print * abp" "print * abp at marker return 0, s-p-o off" {
    -re "= {.*a1 = 200.*b1 = .*b2 = .*}\r\n$gdb_prompt $" {
	# This would violate the documentation for "set print object off".
	fail "print * abp at marker return 0, s-p-o off"
    }
    -re "= {.*a1 = 200.*}\r\n$gdb_prompt $" {
	pass "print * abp at marker return 0, s-p-o off"
    }
}

# Access the "B" object through a "B *" pointer expression.
# This should print using the "B" type.

gdb_test "print * (B *) abp" \
    "= {.*a1 = 200.*b1 = 201.*b2 = 202}" \
    "print * (B *) abp at marker return 0"

# Print the "D" object.

gdb_test "print delta" \
    "= {.*d1 = 400}" \
    "print delta with \"print object\" off"

# Printing the value of an object containing no data fields:

gdb_test "p e" "= \{<No data fields>\}" "print object with no data fields"

# Printing NULL pointers with "set print object on".

gdb_test_no_output "set print object on"
gdb_test "p acp" "= \\(C \\*\\) ${hex}"
gdb_test "p acp->c1" "\\(A \\*\\) 0x0"
gdb_test "p acp->c2" "\\(A \\*\\) ${hex}f"

# Print the "D" object with "set print object on".
# There's no difference in output, but this exercises vtable lookup
# with a typedef'd baseclass.

gdb_test "print delta" \
    "= {.*d1 = 400}" \
    "print delta with \"print object\" on"

# Regression test for PR c++/15401.
# Check that the type printed is a reference.
gdb_test "p aref" " = \\(A \\&\\) .*"