# Copyright (C) 92, 96, 1997 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:
# bug-gdb@prep.ai.mit.edu

# This file was written by Fred Fish. (fnf@cygnus.com)
# and modified by Bob Manson. (manson@cygnus.com)

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}

set prototypes 1
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
    set prototypes 0;
    # built the second test case since we can't use prototypes
    warning "Prototypes not supported, rebuilding with -DNO_PROTOTYPES"
    if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DNO_PROTOTYPES}] != "" } {
	perror "Couldn't compile ${testfile}.c"
	return -1
    }
}

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

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

# The a29k can't call functions, 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 gcc_compiled
    # 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"

    gdb_test "p t_float_values(0.0,0.0)" " = 0"
    gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"
    gdb_test "p t_float_values(float_val1,float_val2)" " = 1"
    gdb_test "p t_float_values(3.14159,float_val2)" " = 1"
    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 $prototypes then {
        setup_xfail "hppa*-*-*" "sparc-*-*" "mips*-*-*" 5318
	if {!$gcc_compiled} 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"

    # On the rs6000, we need to pass the address of the trampoline routine,
    # not the address of add itself.  I don't know how to go from add to
    # the address of the trampoline.  Similar problems exist on the HPPA,
    # and in fact can present an unsolvable problem as the stubs may not
    # even exist in the user's program.  We've slightly recoded t_func_values
    # to avoid such problems in the common case.  This may or may not help
    # the RS6000.
    setup_xfail "rs6000*-*-*"
    setup_xfail "powerpc*-*-*"
    gdb_test "p t_func_values(add,func_val2)" " = 1"

    setup_xfail "rs6000*-*-*"
    setup_xfail "powerpc*-*-*"
    gdb_test "p t_func_values(func_val1,doubleit)" " = 1"

    gdb_test "p t_call_add(func_val1,3,4)" " = 7"

    setup_xfail "rs6000*-*-*"
    setup_xfail "powerpc*-*-*"
    gdb_test "p t_call_add(add,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"
    gdb_test "p sum_args(4,{2,3,4,5})" " = 14"
    gdb_test "p sum10 (1, 2, 3, 4, 5, 6, 7, 8, 9, 10)" " = 55"

    gdb_test "p t_structs_c(struct_val1)" "= 120 'x'" \
	"call inferior func with struct - returns char"
    gdb_test "p t_structs_s(struct_val1)" "= 87" \
	"call inferior func with struct -  returns short"
    gdb_test "p t_structs_i(struct_val1)" "= 76" \
	"call inferior func with struct - returns int"
    gdb_test "p t_structs_l(struct_val1)" "= 51" \
	"call inferior func with struct - returns long"
    setup_xfail "i*86-*-*"
    gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \
	"call inferior func with struct - returns float"
    setup_xfail "i*86-*-*"
    gdb_test "p t_structs_d(struct_val1)" "= 9.87.*" \
	"call inferior func with struct - returns double"
    gdb_test "p t_structs_a(struct_val1)" "= (.unsigned char .. )?\"foo\"" \
	"call inferior func with struct - returns char *"

}

# Start with a fresh gdb.

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

gdb_test "set print sevenbit-strings" ""
gdb_test "set print address off" ""
gdb_test "set width 0" ""

if [set_lang_c] then {
    if [runto_main] then {
	gdb_test "next" ".*"
	do_function_calls
    } else {
	fail "C function calling tests suppressed"
    }
} else {
    fail "C function calling tests suppressed"
}
return 0
