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

# Copyright 1996, 1997, 1999, 2003, 2004, 2007, 2008

# 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 .

# Please email any bugs, comments, and/or additions to this file to:

# bug-gdb@prep.ai.mit.edu

if $tracelevel then {

        strace $tracelevel

}

set prms_id 0

set bug_id 0

# Some targets can't call functions, so don't even bother with this

# test.

if [target_info exists gdb,cannot_call_functions] {

    setup_xfail "*-*-*"

    fail "This target can not call functions"

    continue

}

set testfile "structs"

set srcfile ${testfile}.c

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

# Create and source the file that provides information about the

# compiler used to compile the test case.

if [get_compiler_info ${binfile}] {

    return -1;

}

# Compile a variant of structs.c using TYPES to specify the type of

# the first N struct elements (the remaining elements take the type of

# the last TYPES field).  Run the compmiled program up to "main".

# Also updates the global "testfile" to reflect the most recent build.

proc start_structs_test { types } {

    global testfile

    global srcfile

    global binfile

    global objdir

    global subdir

    global srcdir

    global gdb_prompt

    # Create the additional flags

    set flags "debug"

    set testfile "structs"

    set n 0

    for {set n 0} {$n<[llength ${types}]} {incr n} {

        set m [I2A ${n}]

        set t [lindex ${types} $n]

        lappend flags "additional_flags=-Dt${m}=${t}"

        append testfile "-" "$t"

    }

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

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

        # 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 "${flags} additional_flags=-DNO_PROTOTYPES"] != "" } {

            untested structs.exp

            return -1

        }

    }

    # Start with a fresh gdb.

    gdb_exit

    gdb_start

    gdb_reinitialize_dir $srcdir/$subdir

    gdb_load ${binfile}

    # Make certain that the output is consistent

    gdb_test "set print sevenbit-strings" "" \

            "set print sevenbit-strings; ${testfile}"

    gdb_test "set print address off" "" \

            "set print address off; ${testfile}"

    gdb_test "set width 0" "" \

            "set width 0; ${testfile}"

    # Advance to main

    if { ![runto_main] } then {

        gdb_suppress_tests;

    }

    # Get the debug format

    get_debug_format

    # check that at the struct containing all the relevant types is correct

    set foo_t "type = struct struct[llength ${types}] \{"

    for {set n 0} {$n<[llength ${types}]} {incr n} {

        append foo_t "\[\r\n \]+[lindex ${types} $n] [i2a $n];"

    }

    append foo_t "\[\r\n \]+\}"

    gdb_test "ptype foo[llength ${types}]" "${foo_t}" \

            "ptype foo[llength ${types}]; ${testfile}"

}

# The expected value for fun${n}, L${n} and foo${n}.  First element is

# empty to make indexing easier.  "foo" returns the modified value,

# "zed" returns the invalid value.

proc foo { n } {

    return [lindex {

        "{}"

        "{a = 49 '1'}"

        "{a = 97 'a', b = 50 '2'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F'}"

        "{a = 97 'a', b = 50 '2', c = 99 'c', d = 52 '4', e = 101 'e', f = 54 '6', g = 103 'g', h = 56 '8', i = 105 'i', j = 65 'A', k = 107 'k', l = 67 'C', m = 109 'm', n = 69 'E', o = 111 'o', p = 71 'G'}"

        "{a = 49 '1', b = 98 'b', c = 51 '3', d = 100 'd', e = 53 '5', f = 102 'f', g = 55 '7', h = 104 'h', i = 57 '9', j = 106 'j', k = 66 'B', l = 108 'l', m = 68 'D', n = 110 'n', o = 70 'F', p = 112 'p', q = 72 'H'}"

    } $n]

}

proc zed { n } {

    return [lindex {

        "{}"

        "{a = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z'}"

        "{a = 90 'Z', b = 90 'Z', c = 90 'Z', d = 90 'Z', e = 90 'Z', f = 90 'Z', g = 90 'Z', h = 90 'Z', i = 90 'Z', j = 90 'Z', k = 90 'Z', l = 90 'Z', m = 90 'Z', n = 90 'Z', o = 90 'Z', p = 90 'Z', q = 90 'Z'}"

    } $n]

}

proc any { n } {

    return [lindex {

        "{}"

        "{a = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*, p = \[^,\}\]*}"

        "{a = \[^,\}\]*, b = \[^,\}\]*, c = \[^,\}\]*, d = \[^,\}\]*, e = \[^,\}\]*, f = \[^,\}\]*, g = \[^,\}\]*, h = \[^,\}\]*, i = \[^,\}\]*, j = \[^,\}\]*, k = \[^,\}\]*, l = \[^,\}\]*, m = \[^,\}\]*, n = \[^,\}\]*, o = \[^,\}\]*, p = \[^,\}\]*, q = \[^,\}\]*}"

    } $n]

}

# Given N (0..25), return the corresponding alphabetic letter in lower

# or upper case.  This is ment to be i18n proof.

proc i2a { n } {

    return [string range "abcdefghijklmnopqrstuvwxyz" $n $n]

}

proc I2A { n } {

    return [string toupper [i2a $n]]

}

# Use the file name, compiler and tuples to set up any needed KFAILs.

proc setup_kfails { file tuples bug } {

    global testfile

    if [string match $file $testfile] {

        foreach f $tuples { setup_kfail $f $bug }

    }

}

proc setup_compiler_kfails { file compiler format tuples bug } {

    global testfile

    if {[string match $file $testfile] && [test_compiler_info $compiler]  && [test_debug_format $format]} {

        foreach f $tuples { setup_kfail $f $bug }

    }

}

# Test GDB's ability to make inferior function calls to functions

# returning (or passing in a single structs.

# N identifies the number of elements in the struct that will be used

# for the test case.  FAILS is a list of target tuples that will fail

# this test.

#  start_structs_test() will have previously built a program with a

# specified combination of types for those elements.  To ensure

# robustness of the output, "p/c" is used.

# This tests the code paths "which return-value convention?" and

# "extract return-value from registers" called by "infcall.c".

proc test_struct_calls { n } {

    global testfile

    global gdb_prompt

    # Check that GDB can always extract a struct-return value from an

    # inferior function call.  Since GDB always knows the location of an

    # inferior function call's return value these should never fail

    # Implemented by calling the parameterless function "fun$N" and then

    # examining the return value printed by GDB.

    set tests "call $n ${testfile}"

    # Call fun${n}, checking the printed return-value.

    setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455

    setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455

    gdb_test "p/c fun${n}()"  "[foo ${n}]" "p/c fun(); ${tests}"

    # Check that GDB can always pass a structure to an inferior function.

    # This test can never fail.

    # Implemented by calling the one parameter function "Fun$N" which

    # stores its parameter in the global variable "L$N".  GDB then

    # examining that global to confirm that the value is as expected.

    gdb_test "call Fun${n}(foo${n})" "" "call Fun(foo); ${tests}"

    setup_compiler_kfails structs-tc-tll gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455

    setup_compiler_kfails structs-tc-td gcc-3-3-* "DWARF 2" i*86-*-* gdb/1455

    gdb_test "p/c L${n}" [foo ${n}] "p/c L; ${tests}"

}

# Test GDB's ability to both return a function (with "return" or

# "finish") and correctly extract/store any corresponding

# return-value.

# Check that GDB can consistently extract/store structure return

# values.  There are two cases - returned in registers and returned in

# memory.  For the latter case, the return value can't be found and a

# failure is "expected".  However GDB must still both return the

# function and display the final source and line information.

# N identifies the number of elements in the struct that will be used

# for the test case.  FAILS is a list of target tuples that will fail

# this test.

# This tests the code paths "which return-value convention?", "extract

# return-value from registers", and "store return-value in registers".

# Unlike "test struct calls", this test is expected to "fail" when the

# return-value is in memory (GDB can't find the location).  The test

# is in three parts: test "return"; test "finish"; check that the two

# are consistent.  GDB can sometimes work for one command and not the

# other.

proc test_struct_returns { n } {

    global gdb_prompt

    global testfile

    set tests "return $n ${testfile}"

    # Check that "return" works.

    # GDB must always force the return of a function that has

    # a struct result.  Dependant on the ABI, it may, or may not be

    # possible to store the return value in a register.

    # The relevant code looks like "L{n} = fun{n}()".  The test forces

    # "fun{n}" to "return" with an explicit value.  Since that code

    # snippet will store the the returned value in "L{n}" the return

    # is tested by examining "L{n}".  This assumes that the

    # compiler implemented this as fun{n}(&L{n}) and hence that when

    # the value isn't stored "L{n}" remains unchanged.  Also check for

    # consistency between this and the "finish" case.

    # Get into a call of fun${n}

    gdb_test "advance fun${n}" \

            "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \

            "advance to fun for return; ${tests}"

    # Check that the program invalidated the relevant global.

    gdb_test "p/c L${n}" " = [zed $n]" "zed L for return; ${tests}"

    # Force the "return".  This checks that the return is always

    # performed, and that GDB correctly reported this to the user.

    # GDB 6.0 and earlier, when the return-value's location wasn't

    # known, both failed to print a final "source and line" and misplaced

    # the frame ("No frame").

    # The test is writen so that it only reports one FAIL/PASS for the

    # entire operation.  The value returned is checked further down.

    # "return_value_known", if non-zero, indicates that GDB knew where

    # the return value was located.

    set test "return foo; ${tests}"

    set return_value_known 1

    set return_value_unimplemented 0

    gdb_test_multiple "return foo${n}" "${test}" {

        -re "The location" {

            # Ulgh, a struct return, remember this (still need prompt).

            set return_value_known 0

            exp_continue

        }

        -re "A structure or union" {

            # Ulgh, a struct return, remember this (still need prompt).

            set return_value_known 0

            # Double ulgh.  Architecture doesn't use return_value and

            # hence hasn't implemented small structure return.

            set return_value_unimplemented 1

            exp_continue

        }

        -re "Make fun${n} return now.*y or n. $" {

            gdb_test_multiple "y" "${test}" {

                -re "L${n} *= fun${n}.*${gdb_prompt} $" {

                    # Need to step off the function call

                    gdb_test "next" "L.* *= fun.*" "${test}"

                }

                -re "L[expr ${n} + 1] *= fun[expr ${n} + 1].*${gdb_prompt} $" {

                    pass "${test}"

                }

            }

        }

    }

    # Check that the return-value is as expected.  At this stage we're

    # just checking that GDB has returned a value consistent with

    # "return_value_known" set above.

    #

    # Note that, when return_value_known is false, we can't make any

    # assumptions at all about the value L:

    #

    # - If the caller passed the address of L directly as fun's

    #   return value buffer, then L will be unchanged, because we

    #   forced fun to return before it could store anything in it.

    #

    # - If the caller passed the address of some temporary buffer to

    #   fun, and then copied the buffer into L, then L will

    #   have been overwritten with whatever garbage was in the

    #   uninitialized buffer.

    #

    # - However, if the temporary buffer just happened to have the

    #   "right" value of foo in it, then L will, in fact, have

    #   the value you'd expect to see if the 'return' had worked!

    #   This has actually been observed to happen on the Renesas M32C.

    #

    # So, really, anything is acceptable unless return_value_known is

    # true.

    set test "value foo returned; ${tests}"

    gdb_test_multiple "p/c L${n}" "${test}" {

        -re " = [foo ${n}].*${gdb_prompt} $" {

            # This answer is okay regardless of whether GDB claims to

            # have set the return value: if it did, then this is what

            # we expected; and if it didn't, then any answer is okay.

            pass "${test}"

        }

        -re " = [any $n].*${gdb_prompt} $" {

            if $return_value_known {

                # This contradicts the above claim that GDB knew

                # the location of the return value.

                fail "${test}"

            } else {

                # We expected L${n} to be set to garbage, so any

                # answer is acceptable.

                pass "${test}"

            }

        }

        -re ".*${gdb_prompt} $" {

            if $return_value_unimplemented {

                # What a suprize.  The architecture hasn't implemented

                # return_value, and hence has to fail.

                kfail "$test" gdb/1444

            } else {

                fail "$test"

            }

        }

    }

    # Check that a "finish" works.

    # This is almost but not quite the same as "call struct funcs".

    # Architectures can have subtle differences in the two code paths.

    # The relevant code snippet is "L{n} = fun{n}()".  The program is

    # advanced into a call to  "fun{n}" and then that function is

    # finished.  The returned value that GDB prints, reformatted using

    # "p/c", is checked.

    # Get into "fun${n}()".

    gdb_test "advance fun${n}" \

            "fun${n} .*\[\r\n\]+\[0-9\].*return foo${n}.*" \

            "advance to fun for finish; ${tests}"

    # Check that the program invalidated the relevant global.

    gdb_test "p/c L${n}" " = [zed $n]" "zed L for finish; ${tests}"

    # Finish the function, set 'finish_value_known" to non-empty if

    # the return-value was found.

    set test "finish foo; ${tests}"

    set finish_value_known 1

    gdb_test_multiple "finish" "${test}" {

        -re "Value returned is .*${gdb_prompt} $" {

            pass "${test}"

        }

        -re "Cannot determine contents.*${gdb_prompt} $" {

            # Expected bad value.  For the moment this is ok.

            set finish_value_known 0

            pass "${test}"

        }

    }

    # Re-print the last (return-value) using the more robust

    # "p/c".  If no return value was found, the 'Z' from the previous

    # check that the variable was cleared, is printed.

    set test "value foo finished; ${tests}"

    gdb_test_multiple "p/c" "${test}" {

        -re "[foo ${n}]\[\r\n\]+${gdb_prompt} $" {

            if $finish_value_known {

                pass "${test}"

            } else {

                # This contradicts the above claim that GDB didn't

                # know the location of the return-value.

                fail "${test}"

            }

        }

        -re "[zed ${n}]\[\r\n\]+${gdb_prompt} $" {

            # The value didn't get found.  This is "expected".

            if $finish_value_known {

                # This contradicts the above claim that GDB did

                # know the location of the return-value.

                fail "${test}"

            } else {

                pass "${test}"

            }

        }

    }

    # Finally, check that "return" and finish" have consistent

    # behavior.

    # Since "finish" works in more cases than "return" (see

    # RETURN_VALUE_ABI_RETURNS_ADDRESS and

    # RETURN_VALUE_ABI_PRESERVES_ADDRESS), the "return" value being

    # known implies that the "finish" value is known (but not the

    # reverse).

    set test "return value known implies finish value known; ${tests}"

    if {$return_value_known && ! $finish_value_known} {

        kfail gdb/1444 "${test}"

    } else {

        pass "${test}"

    }

}

# ABIs pass anything >8 or >16 bytes in memory but below that things

# randomly use register and/and structure conventions.  Check all

# possible sized char structs in that range.  But only a restricted

# range of the other types.

# NetBSD/PPC returns "unnatural" (3, 5, 6, 7) sized structs in memory.

# d10v is weird. 5/6 byte structs go in memory.  2 or more char

# structs go in memory.  Everything else is in a register!

# Test every single char struct from 1..17 in size.  This is what the

# original "structs" test was doing.

start_structs_test { tc }

test_struct_calls 1

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_calls 7

test_struct_calls 8

test_struct_calls 9

test_struct_calls 10

test_struct_calls 11

test_struct_calls 12

test_struct_calls 13

test_struct_calls 14

test_struct_calls 15

test_struct_calls 16

test_struct_calls 17

test_struct_returns 1

test_struct_returns 2

test_struct_returns 3

test_struct_returns 4

test_struct_returns 5

test_struct_returns 6

test_struct_returns 7

test_struct_returns 8

# Let the fun begin.

# Assuming that any integer struct larger than 8 bytes goes in memory,

# come up with many and varied combinations of a return struct.  For

# "struct calls" test just beyond that 8 byte boundary, for "struct

# returns" test up to that boundary.

# For floats, assumed that up to two struct elements can be stored in

# floating point registers, regardless of their size.

# The approx size of each structure it is computed assumed that tc=1,

# ts=2, ti=4, tl=4, tll=8, tf=4, td=8, tld=16, and that all fields are

# naturally aligned.  Padding being added where needed.  Note that

# these numbers are just approx, the d10v has ti=2, a 64-bit has has

# tl=8.

# Approx size: 2, 4, ...

start_structs_test { ts }

test_struct_calls 1

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_returns 1

test_struct_returns 2

test_struct_returns 3

test_struct_returns 4

# Approx size: 4, 8, ...

start_structs_test { ti }

test_struct_calls 1

test_struct_calls 2

test_struct_calls 3

test_struct_returns 1

test_struct_returns 2

# Approx size: 4, 8, ...

start_structs_test { tl }

test_struct_calls 1

test_struct_calls 2

test_struct_calls 3

test_struct_returns 1

test_struct_returns 2

# Approx size: 8, 16, ...

start_structs_test { tll }

test_struct_calls 1

test_struct_calls 2

test_struct_returns 1

# Approx size: 4, 8, ...

start_structs_test { tf }

test_struct_calls 1

test_struct_calls 2

test_struct_calls 3

test_struct_returns 1

test_struct_returns 2

# Approx size: 8, 16, ...

start_structs_test { td }

test_struct_calls 1

test_struct_calls 2

test_struct_returns 1

# Approx size: 16, 32, ...

start_structs_test { tld }

test_struct_calls 1

test_struct_calls 2

test_struct_returns 1

# Approx size: 2+1=3, 4, ...

start_structs_test { ts tc }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_calls 7

test_struct_calls 8

test_struct_returns 2

# Approx size: 4+1=5, 6, ...

start_structs_test { ti tc }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_returns 2

# Approx size: 4+1=5, 6, ...

start_structs_test { tl tc }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_returns 2

# Approx size: 8+1=9, 10, ...

start_structs_test { tll tc }

test_struct_calls 2

# Approx size: 4+1=5, 6, ...

start_structs_test { tf tc }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_returns 2

# Approx size: 8+1=9, 10, ...

start_structs_test { td tc }

test_struct_calls 2

# Approx size: 16+1=17, 18, ...

start_structs_test { tld tc }

test_struct_calls 2

# Approx size: (1+1)+2=4, 6, ...

start_structs_test { tc ts }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_calls 5

test_struct_calls 6

test_struct_returns 2

# Approx size: (1+3)+4=8, 12, ...

start_structs_test { tc ti }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_returns 2

# Approx size: (1+3)+4=8, 12, ...

start_structs_test { tc tl }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

test_struct_returns 2

# Approx size: (1+7)+8=16, 24, ...

start_structs_test { tc tll }

test_struct_calls 2

# Approx size: (1+3)+4=8, 12, ...

start_structs_test { tc tf }

test_struct_calls 2

test_struct_calls 3

test_struct_calls 4

# Approx size: (1+7)+8=16, 24, ...

start_structs_test { tc td }

test_struct_calls 2

# Approx size: (1+15)+16=32, 48, ...

start_structs_test { tc tld }

test_struct_calls 2

# Some float combinations

# Approx size: 8+4=12, 16, ...

# d10v: 4+4=8, 12, ...

start_structs_test { td tf }

test_struct_calls 2

test_struct_returns 2

# Approx size: (4+4)+8=16, 32, ...

# d10v: 4+4=8, 12, ...

start_structs_test { tf td }

test_struct_calls 2

test_struct_returns 2

return 0