callfuncs.exp

这个是LINUX下的GDB调度工具的源码

# Copyright 1992, 1994, 1995, 1996, 1997, 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. 

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

# This file was written by Fred Fish. ([e-mail])
# and modified by Bob Manson. ([e-mail])

if $tracelevel then {
	strace $tracelevel
}

set prms_id 0
set bug_id 0

set testfile "callfuncs"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

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

# Create and source the file that provides information about the compiler
# used to compile the test case.

if [get_compiler_info ${binfile}] {
    return -1;
}

if {$hp_aCC_compiler} {
    set prototypes 1
} else {
    set prototypes 0
}

# Some targets can't do function calls, so don't even bother with this
# test.
if [target_info exists gdb,cannot_call_functions] {
    setup_xfail "*-*-*" 2416
    fail "This target can not call functions"
    continue
}

# Set the current language to C.  This counts as a test.  If it
# fails, then we skip the other tests.

proc set_lang_c {} {
    global gdb_prompt

    send_gdb "set language c\n"
    gdb_expect {
	-re ".*$gdb_prompt $" {}
	timeout { fail "set language c (timeout)" ; return 0; }
    }

    send_gdb "show language\n"
    gdb_expect {
	-re ".* source language is \"c\".*$gdb_prompt $" {
	    pass "set language to \"c\""
	    return 1
	}
	-re ".*$gdb_prompt $" {
	    fail "setting language to \"c\""
	    return 0
	}
	timeout {
	    fail "can't show language (timeout)"
	    return 0
	}
    }
}

# FIXME:  Before calling this proc, we should probably verify that
# we can call inferior functions and get a valid integral value
# returned.
# Note that it is OK to check for 0 or 1 as the returned values, because C
# specifies that the numeric value of a relational or logical expression
# (computed in the inferior) is 1 for true and 0 for false.

proc do_function_calls {} {
    global prototypes
    global gdb_prompt

    # We need to up this because this can be really slow on some boards.
    set timeout 60;

    gdb_test "p t_char_values(0,0)" " = 0"
    gdb_test "p t_char_values('a','b')" " = 1"
    gdb_test "p t_char_values(char_val1,char_val2)" " = 1"
    gdb_test "p t_char_values('a',char_val2)" " = 1"
    gdb_test "p t_char_values(char_val1,'b')" " = 1"

    gdb_test "p t_short_values(0,0)" " = 0"
    gdb_test "p t_short_values(10,-23)" " = 1"
    gdb_test "p t_short_values(short_val1,short_val2)" " = 1"
    gdb_test "p t_short_values(10,short_val2)" " = 1"
    gdb_test "p t_short_values(short_val1,-23)" " = 1"

    gdb_test "p t_int_values(0,0)" " = 0"
    gdb_test "p t_int_values(87,-26)" " = 1"
    gdb_test "p t_int_values(int_val1,int_val2)" " = 1"
    gdb_test "p t_int_values(87,int_val2)" " = 1"
    gdb_test "p t_int_values(int_val1,-26)" " = 1"

    gdb_test "p t_long_values(0,0)" " = 0"
    gdb_test "p t_long_values(789,-321)" " = 1"
    gdb_test "p t_long_values(long_val1,long_val2)" " = 1"
    gdb_test "p t_long_values(789,long_val2)" " = 1"
    gdb_test "p t_long_values(long_val1,-321)" " = 1"

    if ![target_info exists gdb,skip_float_tests] {
	gdb_test "p t_float_values(0.0,0.0)" " = 0"

	# These next four tests fail on the mn10300.
	# The first value is passed in regs, the other in memory.
	# Gcc emits different stabs for the two parameters; the first is
	# claimed to be a float, the second a double.
	# dbxout.c in gcc claims this is the desired behavior.
	setup_xfail "mn10300-*-*"
	gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
	setup_xfail "mn10300-*-*"
	gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
	setup_xfail "mn10300-*-*"
	gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
	setup_xfail "mn10300-*-*"
	gdb_test "p t_float_values(float_val1,-2.3765)" " = 1"

	# Test passing of arguments which might not be widened.
	gdb_test "p t_float_values2(0.0,0.0)" " = 0"

	# Although PR 5318 mentions SunOS specifically, this seems
	# to be a generic problem on quite a few platforms.
	if $prototypes then {
	    setup_xfail "sparc-*-*" "mips*-*-*" 5318
	    if { ! [test_compiler_info gcc-*-*] } then {
		setup_xfail "alpha-dec-osf2*" "i*86-*-sysv4*" 5318
	    }
	}
        
	gdb_test "p t_float_values2(3.14159,float_val2)" " = 1"

	gdb_test "p t_small_values(1,2,3,4,5,6,7,8,9,10)" " = 55"

	gdb_test "p t_double_values(0.0,0.0)" " = 0"
	gdb_test "p t_double_values(45.654,-67.66)" " = 1"
	gdb_test "p t_double_values(double_val1,double_val2)" " = 1"
	gdb_test "p t_double_values(45.654,double_val2)" " = 1"
	gdb_test "p t_double_values(double_val1,-67.66)" " = 1"
    }

    gdb_test "p t_string_values(string_val2,string_val1)" " = 0"
    gdb_test "p t_string_values(string_val1,string_val2)" " = 1"
    gdb_test "p t_string_values(\"string 1\",\"string 2\")" " = 1"
    gdb_test "p t_string_values(\"string 1\",string_val2)" " = 1"
    gdb_test "p t_string_values(string_val1,\"string 2\")" " = 1"

    gdb_test "p t_char_array_values(char_array_val2,char_array_val1)" " = 0"
    gdb_test "p t_char_array_values(char_array_val1,char_array_val2)" " = 1"
    gdb_test "p t_char_array_values(\"carray 1\",\"carray 2\")" " = 1"
    gdb_test "p t_char_array_values(\"carray 1\",char_array_val2)" " = 1"
    gdb_test "p t_char_array_values(char_array_val1,\"carray 2\")" " = 1"

    gdb_test "p doubleit(4)" " = 8"
    gdb_test "p add(4,5)" " = 9"
    gdb_test "p t_func_values(func_val2,func_val1)" " = 0"
    gdb_test "p t_func_values(func_val1,func_val2)" " = 1"

    # GDB currently screws up the passing of function parameters for
    # ABIs that use function descriptors.  Instead of passing the
    # address of te function descriptor, GDB passes the address of the
    # function body.  This results in the called function treating the
    # first few instructions of the function proper as a descriptor
    # and attempting a jump through that (a totally random address).
    setup_kfail "rs6000*-*-aix*" gdb/1457
    setup_kfail "powerpc*-*-aix*" gdb/1457
    setup_kfail "powerpc64*-*-*" gdb/1457
    setup_kfail hppa*-*-hpux* gdb/1457
    gdb_test "p t_func_values(add,func_val2)" " = 1"
    setup_kfail "rs6000*-*-aix*" gdb/1457
    setup_kfail "powerpc*-*-aix*" gdb/1457
    setup_kfail "powerpc64*-*-*" gdb/1457
    setup_kfail hppa*-*-hpux* gdb/1457
    gdb_test "p t_func_values(func_val1,doubleit)" " = 1"
    setup_kfail "rs6000*-*-aix*" gdb/1457
    setup_kfail "powerpc*-*-aix*" gdb/1457
    setup_kfail "powerpc64*-*-*" gdb/1457
    setup_kfail hppa*-*-hpux* gdb/1457
    gdb_test "p t_call_add(add,3,4)" " = 7"
    gdb_test "p t_call_add(func_val1,3,4)" " = 7"

    gdb_test "p t_enum_value1(enumval1)" " = 1"
    gdb_test "p t_enum_value1(enum_val1)" " = 1"
    gdb_test "p t_enum_value1(enum_val2)" " = 0"

    gdb_test "p t_enum_value2(enumval2)" " = 1"
    gdb_test "p t_enum_value2(enum_val2)" " = 1"
    gdb_test "p t_enum_value2(enum_val1)" " = 0"

    gdb_test "p sum_args(1,{2})" " = 2"
    gdb_test "p sum_args(2,{2,3})" " = 5"
    gdb_test "p sum_args(3,{2,3,4})" " = 9"