Subversion Repositories openrisc_2011-10-31

# Copyright 1992, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,

# 2004, 2007, 2008, 2009, 2010 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 .

# This file was written by Fred Fish. (fnf@cygnus.com)

# and modified by Bob Manson. (manson@cygnus.com)

if $tracelevel then {

        strace $tracelevel

}

set testfile "callfuncs"

set srcfile ${testfile}.c

set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {

     untested callfuncs.exp

     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;

}

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

    gdb_test_no_output "set language c"

    set success 0

    gdb_test_multiple "show language" "set language to \"c\"" {

        -re ".* source language is \"c\".*$gdb_prompt $" {

            pass "set language to \"c\""

            set success 1

        }

    }

    return $success

}

# 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.

        # These tests also fail for RealView, because GDB can not tell that

        # the function is unprototyped.

        setup_xfail "mn10300-*-*"

        if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }

        gdb_test "p t_float_values(3.14159,-2.3765)" " = 1"

        setup_xfail "mn10300-*-*"

        if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }

        gdb_test "p t_float_values(float_val1,float_val2)" " = 1"

        setup_xfail "mn10300-*-*"

        if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }

        gdb_test "p t_float_values(3.14159,float_val2)" " = 1"

        setup_xfail "mn10300-*-*"

        if { [test_compiler_info "armcc-*"] } { setup_xfail "*-*-*" }

        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_float_many_args (float_val1, float_val2, float_val3, float_val4, float_val5, float_val6, float_val7, float_val8, float_val9, float_val10, float_val11, float_val12, float_val13, float_val14, float_val15)" " = 1" "Call function with many float arguments."

        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_double_many_args (double_val1, double_val2, double_val3, double_val4, double_val5, double_val6, double_val7, double_val8, double_val9, double_val10, double_val11, double_val12, double_val13, double_val14, double_val15)" " = 1" "Call function with many double arguments."

        gdb_test "p t_double_int(99.0, 1)" " = 0"

        gdb_test "p t_double_int(99.0, 99)" " = 1"

        gdb_test "p t_int_double(99, 1.0)" " = 0"

        gdb_test "p t_int_double(99, 99.0)" " = 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_test "p function_struct.func(5)" " = 10"

    gdb_test "p function_struct_ptr->func(10)" " = 20"

    # 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 gdb/1457 "rs6000*-*-aix*"

    setup_kfail gdb/1457 "powerpc*-*-aix*"

    setup_kfail gdb/1457 hppa*-*-hpux*

    gdb_test "p t_func_values(add,func_val2)" " = 1"

    setup_kfail gdb/1457 "rs6000*-*-aix*"

    setup_kfail gdb/1457 "powerpc*-*-aix*"

    setup_kfail gdb/1457 hppa*-*-hpux*

    gdb_test "p t_func_values(func_val1,doubleit)" " = 1"

    setup_kfail gdb/1457 "rs6000*-*-aix*"

    setup_kfail gdb/1457 "powerpc*-*-aix*"

    setup_kfail gdb/1457 hppa*-*-hpux*

    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"

    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 cmp10 (0, 1, 2, 3, 4, 5, 6, 7, 8, 9)" " = 1"

    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"

    gdb_test "p t_structs_f(struct_val1)" "= 2.12.*" \

        "call inferior func with struct - returns float"

    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 *"

}

# Procedure to get current content of all registers.

proc fetch_all_registers {test} {

    global gdb_prompt

    set all_registers_lines {}

    set bad -1

    # Former trailing `\[\r\n\]+' may eat just \r leaving \n in the buffer

    # corrupting the next matches.

    if {[gdb_test_multiple "info all-registers" $test {

        -re "info all-registers\r\n" {

            exp_continue

        }

        -ex "The program has no registers now" {

            set bad 1

            exp_continue

        }

        -re "^bspstore\[ \t\]+\[^\r\n\]+\r\n" {

            if [istarget "ia64-*-*"] {

                # Filter out bspstore which is specially tied to bsp,

                # giving spurious differences.

            } else {

                lappend all_registers_lines $expect_out(0,string)

            }

            exp_continue

        }

        -re "^\[^ \t\]+\[ \t\]+\[^\r\n\]+\r\n" {

            lappend all_registers_lines $expect_out(0,string)

            exp_continue

        }

        -re "$gdb_prompt $" {

            incr bad

        }

        -re "^\[^\r\n\]+\r\n" {

            if {!$bad} {

                warning "Unrecognized output: $expect_out(0,string)"

                set bad 1

            }

            exp_continue

        }

    }] != 0} {

        return {}

    }

    if {$bad} {

        fail $test

        return {}

    }

    pass $test

    return $all_registers_lines

}

# Start with a fresh gdb.

gdb_exit

gdb_start

gdb_reinitialize_dir $srcdir/$subdir

gdb_load ${binfile}

gdb_test_no_output "set print sevenbit-strings"

gdb_test_no_output "set print address off"

gdb_test_no_output "set width 0"

if { $hp_aCC_compiler } {

    # Do not set language explicitly to 'C'.  This will cause aCC

    # tests to fail because promotion rules are different.  Just let

    # the language be set to the default.

    if { ![runto_main] } {

        gdb_suppress_tests;

    }

    # However, turn off overload-resolution for aCC.  Having it on causes

    # a lot of failures.

    gdb_test_no_output "set overload-resolution 0"

} else {

    if { ![set_lang_c] } {

        gdb_suppress_tests;

    } else {

        if { ![runto_main] } {

            gdb_suppress_tests;

        }

    }

}

get_debug_format

# Make sure that malloc gets called and that the floating point unit

# is initialized via a call to t_double_values.

gdb_test "next" "t_double_values\\(double_val1, double_val2\\);.*" \

  "next to t_double_values"

gdb_test "next" "t_structs_c\\(struct_val1\\);.*" \

  "next to t_structs_c"

# Save all register contents.

set old_reg_content [fetch_all_registers "retrieve original register contents"]

# Perform function calls.

do_function_calls

# Check if all registers still have the same value.

set new_reg_content [fetch_all_registers \

                     "register contents after gdb function calls"]

if {$old_reg_content == $new_reg_content} then {

    pass "gdb function calls preserve register contents"

} else {

    set old_reg_content $new_reg_content

    fail "gdb function calls preserve register contents"

}

# Set breakpoint at a function we will call from gdb.

gdb_breakpoint add

# Call function (causing a breakpoint hit in the call dummy) and do a continue,

# make sure we are back at main and still have the same register contents.

gdb_test "print add(4,5)" \

        "The program being debugged stopped while.*" \

        "stop at breakpoint in call dummy function"

gdb_test "continue" "Continuing.*" "continue from call dummy breakpoint"

if ![gdb_test "bt 2" \

              "#0  main.*" \

              "bt after continuing from call dummy breakpoint"] then {

    set new_reg_content [fetch_all_registers \

                         "register contents after stop in call dummy"]

    if {$old_reg_content == $new_reg_content} then {

        pass "continue after stop in call dummy preserves register contents"

    } else {

        fail "continue after stop in call dummy preserves register contents"

    }

}

# Call function (causing a breakpoint hit in the call dummy) and do a finish,

# make sure we are back at main and still have the same register contents.

gdb_test "print add(4,5)" "The program being debugged stopped while.*" \

        "call function causing a breakpoint then do a finish"

gdb_test "finish" \

         "Value returned is .* = 9" \

         "finish from call dummy breakpoint returns correct value"

if ![gdb_test "bt 2" \

              "#0  main.*" \

              "bt after finishing from call dummy breakpoint"] then {

    set new_reg_content [fetch_all_registers \

                         "register contents after finish in call dummy"]

    if {$old_reg_content == $new_reg_content} then {

        pass "finish after stop in call dummy preserves register contents"

    } else {

        fail "finish after stop in call dummy preserves register contents"

    }

}

# Call function (causing a breakpoint hit in the call dummy) and do a return

# with a value, make sure we are back at main with the same register contents.

gdb_test "print add(4,5)" "The program being debugged stopped while.*" \

        "call function causing a breakpoint and then do a return"

if ![gdb_test "return 7" \

              "#0  main.*" \

              "back at main after return from call dummy breakpoint" \

              "Make add return now. .y or n.*" \

              "y"] then {

    set new_reg_content [fetch_all_registers \

                         "register contents after return in call dummy"]

    if {$old_reg_content == $new_reg_content} then {

        pass "return after stop in call dummy preserves register contents"

    } else {

        fail "return after stop in call dummy preserves register contents"

    }

}

# Call function (causing a breakpoint hit in the call dummy), and

# call another function from the call dummy frame (thereby setting up

# several nested call dummy frames).  Test that backtrace and finish

# work when several call dummies are nested.

gdb_breakpoint sum10

gdb_breakpoint t_small_values

gdb_test "print add(2,3)" "The program being debugged stopped while.*" \

        "stop at nested call level 1"

gdb_test "backtrace" \

        "\#0  add \\(a=2, b=3\\).*\#1  .*\#2  main.*" \

        "backtrace at nested call level 1"

gdb_test "print add(4,5)" "The program being debugged stopped while.*" \

        "stop at nested call level 2"

gdb_test "backtrace" \

        "\#0  add \\(a=4, b=5\\).*\#1  .*\#2  add \\(a=2, b=3\\).*\#3  .*\#4  main.*" \

        "backtrace at nested call level 2"

gdb_test "print sum10(2,4,6,8,10,12,14,16,18,20)" \

        "The program being debugged stopped while.*" \

        "stop at nested call level 3"

gdb_test "backtrace" \

        "\#0  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1  .*\#2  add \\(a=4, b=5\\).*\#3  .*\#4  add \\(a=2, b=3\\).*\#5  .*\#6  main.*" \

        "backtrace at nested call level 3"

gdb_test "print t_small_values(1,3,5,7,9,11,13,15,17,19)" \

        "The program being debugged stopped while.*" \

        "stop at nested call level 4"

gdb_test "backtrace" \

        "\#0  t_small_values \\(arg1=1 '.001', arg2=3, arg3=5, arg4=7 '.a', arg5=9, arg6=11 '.v', arg7=13, arg8=15, arg9=17, arg10=19\\).*\#2  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#3  .*\#4  add \\(a=4, b=5\\).*\#5  .*\#6  add \\(a=2, b=3\\).*\#7  .*\#8  main.*" \

        "backtrace at nested call level 4"

gdb_test "finish" "Value returned is .* = 100" \

        "Finish from nested call level 4"

gdb_test "backtrace" \

        "\#0  sum10 \\(i0=2, i1=4, i2=6, i3=8, i4=10, i5=12, i6=14, i7=16, i8=18, i9=20\\).*\#1  .*\#2  add \\(a=4, b=5\\).*\#3  .*\#4  add \\(a=2, b=3\\).*\#5  .*\#6  main.*" \

        "backtrace after finish from nested call level 4"

gdb_test "finish" "Value returned is .* = 110" \

        "Finish from nested call level 3"

gdb_test "backtrace" \

        "\#0  add \\(a=4, b=5\\).*\#1  .*\#2  add \\(a=2, b=3\\).*\#3  .*\#4  main.*" \

        "backtrace after finish from nested call level 3"

gdb_test "finish" "Value returned is .* = 9" \

        "Finish from nested call level 2"

gdb_test "backtrace" \

        "\#0  add \\(a=2, b=3\\).*\#1  .*\#2  main.*" \

        "backtrace after finish from nested call level 2"

gdb_test "finish" "Value returned is .* = 5" \

        "Finish from nested call level 1"

gdb_test "backtrace" "\#0  main .*" \

        "backtrace after finish from nested call level 1"

set new_reg_content [fetch_all_registers \

                     "register contents after nested call dummies"]

if {$old_reg_content == $new_reg_content} then {

    pass "nested call dummies preserve register contents"

} else {

    fail "nested call dummies preserve register contents"

}

# GDB should not crash by internal error on $sp underflow during the inferior

# call.  It is OK it will stop on some: Cannot access memory at address 0x$hex.

if {![target_info exists gdb,nosignals] && ![istarget "*-*-uclinux*"]} {

    gdb_test {set $old_sp = $sp}

    gdb_test {set $sp = 0}

    gdb_test "call doubleit (1)" ".*" "sp == 0: call doubleit (1)"

    gdb_test {set $sp = -1}

    gdb_test "call doubleit (1)" ".*" "sp == -1: call doubleit (1)"

    gdb_test {set $sp = $old_sp}

}