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# This testcase is part of GDB, the GNU debugger.

# Copyright 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 .

if $tracelevel {

    strace $tracelevel

}

#

# test running programs

#

set prms_id 0

set bug_id 0

set testfile "store"

set srcfile ${testfile}.c

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

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

    untested store.exp

    return -1

}

if [get_compiler_info ${binfile}] {

    return -1;

}

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_main] then {

    perror "couldn't run to breakpoint"

    continue

}

#

proc check_set { t l r new add } {

    set prefix "var ${t} l"

    gdb_test "tbreak wack_${t}"

    gdb_test "continue" "register ${t} l = u, r = v;" \

        "continue to wack_${t}"

    gdb_test "next" "l = add_${t} .l, r.;" \

        "${prefix}; next ${t}"

    gdb_test "print l" " = ${l}" \

        "${prefix}; print old l, expecting ${l}"

    gdb_test "print r" " = ${r}" \

        "${prefix}; print old r, expecting ${r}"

    gdb_test "set variable l = 4" "" \

        "${prefix}; setting l to 4"

    gdb_test "print l" " = ${new}" \

        "${prefix}; print new l, expecting ${new}"

    gdb_test "next" "return l \\+ r;" \

        "${prefix}; next over add call"

    gdb_test "print l" " = ${add}" \

        "${prefix}; print incremented l, expecting ${add}"

}

check_set "charest" "-1 .*" "-2 .*" "4 ..004." "2 ..002."

check_set "short" "-1" "-2" "4" "2"

check_set "int" "-1" "-2" "4" "2"

check_set "long" "-1" "-2" "4" "2"

check_set "longest" "-1" "-2" "4" "2"

check_set "float" "-1" "-2" "4" "2"

check_set "double" "-1" "-2" "4" "2"

check_set "doublest" "-1" "-2" "4" "2"

#

proc up_set { t l r new } {

    set prefix "upvar ${t} l"

    gdb_test "tbreak add_${t}"

    gdb_test "continue" "return u . v;" \

        "continue to add_${t}"

    gdb_test "up" "l = add_${t} .l, r.;" \

        "${prefix}; up"

    gdb_test "print l" " = ${l}" \

        "${prefix}; print old l, expecting ${l}"

    gdb_test "print r" " = ${r}" \

        "${prefix}; print old r, expecting ${r}"

    gdb_test "set variable l = 4" "" \

        "${prefix}; set l to 4"

    gdb_test "print l" " = ${new}" \

        "${prefix}; print new l, expecting ${new}"

}

up_set "charest" "-1 .*" "-2 .*" "4 ..004."

up_set "short" "-1" "-2" "4"

up_set "int" "-1" "-2" "4"

up_set "long" "-1" "-2" "4"

up_set "longest" "-1" "-2" "4"

up_set "float" "-1" "-2" "4"

up_set "double" "-1" "-2" "4"

up_set "doublest" "-1" "-2" "4"

#

proc check_struct { t old new } {

    set prefix "var struct ${t} u"

    gdb_test "tbreak wack_struct_${t}"

    gdb_test "continue" "int i; register struct s_${t} u = z_${t};" \

        "continue to wack_struct_${t}"

    gdb_test "next 2" "add_struct_${t} .u.;" \

        "${prefix}; next to add_struct_${t} call"

    gdb_test "print u" " = ${old}" \

        "${prefix}; print old u, expecting ${old}"

    gdb_test "set variable u = s_${t}" "" \

        "${prefix}; set u to s_${t}"

    gdb_test "print u" " = ${new}" \

        "${prefix}; print new u, expecting ${new}"

}

check_struct "1" "{s = \\{0}}" "{s = \\{1}}"

check_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"

check_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"

check_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"

proc up_struct { t old new } {

    set prefix "up struct ${t} u"

    gdb_test "tbreak add_struct_${t}"

    gdb_test "continue" "for .i = 0; i < sizeof .s. / sizeof .s.s.0..; i..." \

        "continue to add_struct_${t}"

    gdb_test "up" "u = add_struct_${t} .u.;" \

        "${prefix}; up"

    gdb_test "print u" " = ${old}" \

        "${prefix}; print old u, expecting ${old}"

    gdb_test "set variable u = s_${t}" "" \

        "${prefix}; set u to s_${t}"

    gdb_test "print u" " = ${new}" \

        "${prefix}; print new u, expecting ${new}"

}

up_struct "1" "{s = \\{0}}" "{s = \\{1}}"

up_struct "2" "{s = \\{0, 0}}" "{s = \\{1, 2}}"

up_struct "3" "{s = \\{0, 0, 0}}" "{s = \\{1, 2, 3}}"

up_struct "4" "{s = \\{0, 0, 0, 0}}" "{s = \\{1, 2, 3, 4}}"

#

proc check_field { t } {

    global gdb_prompt

    gdb_test "tbreak wack_field_${t}"

    gdb_test "continue" "register struct f_${t} u = f_${t};" \

            "continue field ${t}"

    # Match either the return statement, or the line immediatly after

    # it.  The compiler can end up merging the return statement into

    # the return instruction.

    gdb_test "next" "(return u;|\})" "next field ${t}"

    gdb_test "print u" " = {i = 1, j = 1, k = 1}" "old field ${t}"

    gdb_test "set variable u = F_${t}"

    gdb_test "print u" " = {i = 0, j = 0, k = 0}" "new field ${t}"

    gdb_test "set variable u = F_${t}, u.i = f_${t}.i"

    gdb_test "print u" " = {i = 1, j = 0, k = 0}" "f_${t}.i"

    gdb_test "set variable u = F_${t}, u.j = f_${t}.j"

    gdb_test "print u" " = {i = 0, j = 1, k = 0}" "f_${t}.j"

    gdb_test "set variable u = F_${t}, u.k = f_${t}.k"

    gdb_test "print u" " = {i = 0, j = 0, k = 1}" "f_${t}.k"

    gdb_test "set variable u = f_${t}, u.i = F_${t}.i"

    gdb_test "print u" " = {i = 0, j = 1, k = 1}" "F_${t}.i"

    gdb_test "set variable u = f_${t}, u.j = F_${t}.j"

    gdb_test "print u" " = {i = 1, j = 0, k = 1}" "F_${t}.j"

    gdb_test "set variable u = f_${t}, u.k = F_${t}.k"

    gdb_test "print u" " = {i = 1, j = 1, k = 0}" "F_${t}.k"

}

check_field 1

check_field 2

check_field 3

check_field 4

#

# WANTED: A fairly portable way of convincing the compiler to split a

# value across memory and registers.