gdb/testsuite/gdb.base/structs.exp

# Copyright 1996, 1997, 1999 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 Jeff Law. (law@cygnus.com)

if $tracelevel then {
	strace $tracelevel
}

set prms_id 0
set bug_id 0

set prototypes 1
set testfile "structs"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

# build the first test case
if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
    # 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}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
    }
    set prototypes 0
}

# Create and source the file that provides information about the compiler
# used to compile the test case.
if [get_compiler_info ${binfile}] {
    return -1;
}


# Some targets 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
}


# Call FUNC with no arguments, and expect to see the regexp RESULT in
# the output.  If we get back the error message "Function return value
# unknown", call that an unsupported test; on some architectures, it's
# impossible to find structs returned by value reliably.
proc call_struct_func { func result } {
    global gdb_prompt
    
    set command "p ${func}()"
    send_gdb "${command}\n"
    gdb_expect {
        -re "$result\[\r\n\]+$gdb_prompt $" {
            pass "$command"
        }
        -re "Function return value unknown.\[\r\n\]+$gdb_prompt $" {
            unsupported "$command"
        }
        -re "$gdb_prompt $" {
            fail "$command"
        }
        timeout {
            fail "$command (timeout)"
        }
    }
}

# 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
    global gdb_prompt

    # First, call the "fun" functions and examine the value they return.
    call_struct_func "fun1" " = {a = 49 '1'}"
    call_struct_func "fun2" " = {a = 97 'a', b = 98 'b'}"
    call_struct_func "fun3" " = {a = 65 'A', b = 66 'B', c = 67 'C'}"
    call_struct_func "fun4" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4'}"
    call_struct_func "fun5" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e'}"
    call_struct_func "fun6" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F'}"
    call_struct_func "fun7" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7'}"
    call_struct_func "fun8" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8'}"
    call_struct_func "fun9" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i'}"
    call_struct_func "fun10" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J'}"
    call_struct_func "fun11" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8', i = 57 '9', j = 65 'A', k = 66 'B'}"
    call_struct_func "fun12" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J', k = 75 'K', l = 76 'L'}"
    call_struct_func "fun16" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i', j = 106 'j', k = 107 'k', l = 108 'l', m = 109 'm', n = 110 'n', o = 111 'o', p = 112 'p'}"

    # Now call the Fun functions to set the L* variables.  This
    # tests that gdb properly passes structures to functions.
    gdb_test "p Fun1(foo1)" " = (void|0)"
    gdb_test "p Fun2(foo2)" " = (void|0)"
    gdb_test "p Fun3(foo3)" " = (void|0)"
    gdb_test "p Fun4(foo4)" " = (void|0)"
    gdb_test "p Fun5(foo5)" " = (void|0)"
    gdb_test "p Fun6(foo6)" " = (void|0)"
    gdb_test "p Fun7(foo7)" " = (void|0)"
    gdb_test "p Fun8(foo8)" " = (void|0)"
    gdb_test "p Fun9(foo9)" " = (void|0)"
    gdb_test "p Fun10(foo10)" " = (void|0)"
    gdb_test "p Fun11(foo11)" " = (void|0)"
    gdb_test "p Fun12(foo12)" " = (void|0)"
    gdb_test "p Fun16(foo16)" " = (void|0)"

    # Now print the L* variables and examine their values.
    gdb_test "p L1" " = {a = 49 '1'}"
    gdb_test "p L2" " = {a = 97 'a', b = 98 'b'}"
    gdb_test "p L3" " = {a = 65 'A', b = 66 'B', c = 67 'C'}"
    gdb_test "p L4" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4'}"
    gdb_test "p L5" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e'}"
    gdb_test "p L6" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F'}"
    gdb_test "p L7" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7'}"
    gdb_test "p L8" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8'}"
    gdb_test "p L9" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i'}"
    gdb_test "p L10" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J'}"
    gdb_test "p L11" " = {a = 49 '1', b = 50 '2', c = 51 '3', d = 52 '4', e = 53 '5', f = 54 '6', g = 55 '7', h = 56 '8', i = 57 '9', j = 65 'A', k = 66 'B'}"
    gdb_test "p L12" " = {a = 65 'A', b = 66 'B', c = 67 'C', d = 68 'D', e = 69 'E', f = 70 'F', g = 71 'G', h = 72 'H', i = 73 'I', j = 74 'J', k = 75 'K', l = 76 'L'}"
    gdb_test "p L16" " = {a = 97 'a', b = 98 'b', c = 99 'c', d = 100 'd', e = 101 'e', f = 102 'f', g = 103 'g', h = 104 'h', i = 105 'i', j = 106 'j', k = 107 'k', l = 108 'l', m = 109 'm', n = 110 'n', o = 111 'o', p = 112 'p'}"
}
# Start with a fresh gdb.

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 [target_info exists gdb,cannot_call_functions] {
    setup_xfail "*-*-*" 2416
    fail "This target can not call functions"
    return 0
}

if { ![runto_main] } then {
    gdb_suppress_tests;
}

do_function_calls;

gdb_stop_suppressing_tests;

return 0