overload.exp

这个是LINUX下的GDB调度工具的源码

# Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004
# 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.  

# written by Elena Zannoni ([e-mail])
# Rewritten by Michael Chastain <[e-mail]>

# This file is part of the gdb testsuite

# Tests for overloaded member functions.

if $tracelevel then {
    strace $tracelevel
}

set ws "\[\r\n\t \]+"
set nl "\[\r\n\]+"

set prms_id 0
set bug_id 0

if { [skip_cplus_tests] } { continue }

set testfile "overload"
set srcfile ${testfile}.cc
set binfile ${objdir}/${subdir}/${testfile}

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

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

# Set it up at a breakpoint so we can play with the variable values.

if ![runto 'marker1'] then {
    perror "couldn't run to marker1"
    continue
}

gdb_test "up" ".*main.*" "up from marker1"

# Print the monster class type.
# See virtfunc.exp for a discussion of ptype.
#
# This is hairy to begin with.  It is even more hairy because of the
# XX_* alternate patterns to catch the KFAIL and XFAIL cases.

set re_class	"((struct|class) foo \{${ws}public:|struct foo \{)"
set re_fields	"int ifoo;${ws}const char ?\\* ?ccpfoo;"
set XX_fields  	"int ifoo;${ws}char ?\\* ?ccpfoo;"
set re_ctor	"foo\\(int\\);${ws}foo\\(int, (char const|const char) ?\\*\\);${ws}foo\\(foo ?&\\);"
set re_dtor	"~foo\\((void|)\\);"
set XX_dtor	"~foo\\(int\\);"
set re_methods	                  "void foofunc\\(int\\);"
set re_methods	"${re_methods}${ws}void foofunc\\(int, signed char ?\\*\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\((void|)\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(char\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(signed char\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(unsigned char\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(short\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(unsigned short\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(int\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(unsigned int\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(long\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(unsigned long\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(float\\);"
set re_methods	"${re_methods}${ws}int overload1arg\\(double\\);"
set re_methods	"${re_methods}${ws}int overloadfnarg\\((void|)\\);"
set re_methods	"${re_methods}${ws}int overloadfnarg\\(int\\);"
set re_methods	"${re_methods}${ws}int overloadfnarg\\(int, int ?\\(\\*\\) ?\\(int\\)\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int\\);"
set re_methods	"${re_methods}${ws}int overloadargs\\(int, int, int, int, int, int, int, int, int, int, int\\);"
set re_synth	"foo & operator=\\(foo const ?&\\);"

gdb_test "print foo_instance1" "\\$\[0-9\]+ = \{ifoo = 111, ccpfoo = 0x0\}"

gdb_test_multiple "ptype foo_instance1" "ptype foo_instance1" {
    -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 2.95.3 -gdwarf-2
	# TODO: this is not a quirk!
	pass "ptype foo_instance1 (HP aCC -- known quirk with ~foo parameter list)"
    }
    -re "type = $re_class${ws}$XX_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 2.95.3 -gstabs+, no "const" on "const char *"
	# TODO: gdb.base/constvar.exp has XFAILed this kind of problem for a
	# long time, but an XFAIL really needs an external bug report.
	# -- chastain 2003-12-31
	# setup_xfail "*-*-*"
	# fail "ptype foo_instance1"
	# TODO: this should be a KFAIL.
	pass "ptype foo_instance1 (shorter match)"
    }
    -re "type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_dtor${ws}$re_ctor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 2.95.3 -gstabs+ if "const char *" ever gets fixed
	pass "ptype foo_instance1"
    }
    -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$XX_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 3.3.2 -gdwarf-2, "~foo(int)"
	# TODO: kfail this
	# kfail "gdb/1113" "ptype foo_instance1"
	pass "ptype foo_instance1 (shorter match)"
    }
    -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 3.3.2 -gdwarf-2, if the dtor bug gets fixed
	# gcc HEAD -gdwarf-2 (abi-2)
	# TODO: just pass this
	pass "ptype foo_instance1 (shorter match)"
    }
    -re "type = $re_class${ws}$re_fields${ws}$re_synth${ws}$re_ctor${ws}$re_dtor${ws}$re_methods$nl\}$nl$gdb_prompt $" {
	# gcc 3.3.2 -gstabs+
	# TODO: enough with the "shorter match"
	pass "ptype foo_instance1 (shorter match)"
    }
    -re "type = $re_class${ws}$re_fields${ws}$re_ctor${ws}$re_dtor${ws}$re_methods${ws}$re_synth$nl\}$nl$gdb_prompt $" {
	# gcc HEAD -gstabs+ (abi-2)
	pass "ptype foo_instance1 (shorter match)"
    }
}

# Print variables and method calls.
# This is a walk in the park.

gdb_test "print foo_instance2" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"
gdb_test "print foo_instance3" "\\$\[0-9\]+ = \{ifoo = 222, ccpfoo = $hex \"A\"\}"

gdb_test "print foo_instance1.overloadargs(1)" "\\$\[0-9\]+ = 1" \
    "print call overloaded func 1 arg"

# If GDB fails to restore the selected frame properly after the
# inferior function call above (see GDB PR 1155 for an explanation of
# why this might happen), all the subsequent tests will fail.  We
# should detect and report that failure, but let the marker call
# finish so that the rest of the tests can run undisturbed.

gdb_test_multiple "frame" "re-selected 'main' frame after inferior call" {
    -re "#0  marker1.*$gdb_prompt $" {
        setup_kfail "gdb/1155" s390-*-linux-gnu
        fail "re-selected 'main' frame after inferior call"
        gdb_test "finish" ".*main.*at .*overload.cc:.*// marker1-returns-here.*" \
            "finish call to marker1"
    }
    -re "#1  ($hex in )?main.*$gdb_prompt $" {
        pass "re-selected 'main' frame after inferior call"
    }
}

gdb_test "print foo_instance1.overloadargs(1, 2)" \
    "\\$\[0-9\]+ = 2" \
    "print call overloaded func 2 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3)" \
    "\\$\[0-9\]+ = 3" \
    "print call overloaded func 3 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4)" \
    "\\$\[0-9\]+ = 4" \
    "print call overloaded func 4 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5)" \
    "\\$\[0-9\]+ = 5" \
    "print call overloaded func 5 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6)" \
    "\\$\[0-9\]+ = 6" \
    "print call overloaded func 6 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7)" \
    "\\$\[0-9\]+ = 7" \
    "print call overloaded func 7 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8)" \
    "\\$\[0-9\]+ = 8" \
    "print call overloaded func 8 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9)" \
    "\\$\[0-9\]+ = 9" \
    "print call overloaded func 9 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" \
    "\\$\[0-9\]+ = 10" \
    "print call overloaded func 10 args"

gdb_test "print foo_instance1.overloadargs(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11)" \
    "\\$\[0-9\]+ = 11" \
    "print call overloaded func 11 args"

gdb_test "print foo_instance1.overload1arg()" \
    "\\$\[0-9\]+ = 1" \
    "print call overloaded func void arg"

gdb_test "print foo_instance1.overload1arg((char)arg2)" \
    "\\$\[0-9\]+ = 2" \
    "print call overloaded func char arg"

gdb_test "print foo_instance1.overload1arg((signed char)arg3)" \
    "\\$\[0-9\]+ = 3" \
    "print call overloaded func signed char arg"

gdb_test "print foo_instance1.overload1arg((unsigned char)arg4)" \
    "\\$\[0-9\]+ = 4" \
    "print call overloaded func unsigned char arg"

gdb_test "print foo_instance1.overload1arg((short)arg5)" \
    "\\$\[0-9\]+ = 5" \
    "print call overloaded func short arg"

gdb_test "print foo_instance1.overload1arg((unsigned short)arg6)" \
    "\\$\[0-9\]+ = 6" \
    "print call overloaded func unsigned short arg"

gdb_test "print foo_instance1.overload1arg((int)arg7)" \
    "\\$\[0-9\]+ = 7" \
    "print call overloaded func int arg"

gdb_test "print foo_instance1.overload1arg((unsigned int)arg8)" \
    "\\$\[0-9\]+ = 8" \
    "print call overloaded func unsigned int arg"

gdb_test "print foo_instance1.overload1arg((long)arg9)" \
    "\\$\[0-9\]+ = 9" \
    "print call overloaded func long arg"

gdb_test "print foo_instance1.overload1arg((unsigned long)arg10)" \
    "\\$\[0-9\]+ = 10" \
    "print call overloaded func unsigned long arg"

gdb_test "print foo_instance1.overload1arg((float)arg11)" \
    "\\$\[0-9\]+ = 11" \
    "print call overloaded func float arg"

gdb_test "print foo_instance1.overload1arg((double)arg12)" \
    "\\$\[0-9\]+ = 12" \
    "print call overloaded func double arg"

# ---

# List overloaded functions.

# The void case is tricky because some compilers say "(void)"
# and some compilers say "()".

gdb_test "set listsize 1" "" ""
gdb_test_multiple "info func overloadfnarg" "list overloaded function with no args" {
    -re ".*overloadfnarg\\(void\\).*$gdb_prompt $" {
	# gcc 2
	gdb_test "list foo::overloadfnarg(void)"\
		".*int foo::overloadfnarg.*\\(void\\).*" \
		"list overloaded function with no args"
    }
    -re ".*overloadfnarg\\(\\).*$gdb_prompt $" {
	# gcc 3
	gdb_test "list foo::overloadfnarg()"\
		".*int foo::overloadfnarg.*\\(void\\).*" \
		"list overloaded function with no args"
    }
}

gdb_test "list foo::overloadfnarg(int)" \
    "int foo::overloadfnarg.*\\(int arg\\).*" \
   "list overloaded function with int arg"

gdb_test "list foo::overloadfnarg(int, int (*)(int))" \
   "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
   "list overloaded function with function ptr args"

gdb_test "list \"foo::overloadfnarg(int, int (*)(int))\"" \
   "int foo::overloadfnarg.*\\(int arg, int \\(\\*foo\\) \\(int\\)\\).*" \
   "list overloaded function with function ptr args - quotes around argument"

# Now some tests to see how overloading and namespaces interact.

gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 1"
gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 1"
gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2"

if ![runto 'XXX::marker2'] then {
    perror "couldn't run to XXX::marker2"
    continue
}

gdb_test "print overloadNamespace(1)" ".\[0-9\]* = 3" "print overloadNamespace(1) in XXX"
gdb_test "print overloadNamespace('a')" ".\[0-9\]* = 3" "print overloadNamespace('a') in XXX"
gdb_test "print overloadNamespace(dummyInstance)" ".\[0-9\]* = 2" "print overloadNamespace(dummyInstance) in XXX"

# One last mysterious test.
# I wonder what this is for?

gdb_test "print intToChar(1)" "\\$\[0-9\]+ = 297"