1# This testcase is part of GDB, the GNU debugger. 2 3# Copyright 2000, 2002, 2003, 2004, 2005, 2007, 2008, 2009, 2010, 2011 4# Free Software Foundation, Inc. 5 6# This program is free software; you can redistribute it and/or modify 7# it under the terms of the GNU General Public License as published by 8# the Free Software Foundation; either version 3 of the License, or 9# (at your option) any later version. 10# 11# This program is distributed in the hope that it will be useful, 12# but WITHOUT ANY WARRANTY; without even the implied warranty of 13# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14# GNU General Public License for more details. 15# 16# You should have received a copy of the GNU General Public License 17# along with this program. If not, see <http://www.gnu.org/licenses/>. 18 19if [target_info exists gdb,noinferiorio] { 20 verbose "Skipping fileio.exp because of no fileio capabilities." 21 continue 22} 23 24if $tracelevel { 25 strace $tracelevel 26} 27 28# 29# test running programs 30# 31 32set testfile "sizeof" 33set srcfile ${testfile}.c 34set binfile ${objdir}/${subdir}/${testfile} 35if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } { 36 untested sizeof.exp 37 return -1 38} 39 40if [get_compiler_info ${binfile}] { 41 return -1; 42} 43 44gdb_exit 45gdb_start 46gdb_reinitialize_dir $srcdir/$subdir 47gdb_load ${binfile} 48 49# 50# set it up at a breakpoint so we can play with the variable values 51# 52 53if ![runto_main] then { 54 perror "couldn't run to breakpoint" 55 continue 56} 57 58# 59# Query GDB for the size of various types 60# 61 62gdb_test "next" 63 64set sizeof_char [get_sizeof "char" 1] 65set sizeof_short [get_sizeof "short" 2] 66set sizeof_int [get_sizeof "int" 4] 67set sizeof_long [get_sizeof "long" 4] 68set sizeof_long_long [get_sizeof "long long" 8] 69 70set sizeof_data_ptr [get_sizeof "void *" 4] 71set sizeof_func_ptr [get_sizeof "void (*)(void)" 4] 72 73set sizeof_float [get_sizeof "float" 4] 74set sizeof_double [get_sizeof "double" 8] 75set sizeof_long_double [get_sizeof "long double" 8] 76 77# 78# Compare GDB's idea of types with the running program 79# 80 81proc check_sizeof { type size } { 82 global gdb_prompt 83 84 set pat [string_to_regexp "sizeof (${type}) == ${size}"] 85 gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*" "check sizeof \"$type\"" 86} 87 88check_sizeof "char" ${sizeof_char} 89check_sizeof "short" ${sizeof_short} 90check_sizeof "int" ${sizeof_int} 91check_sizeof "long" ${sizeof_long} 92check_sizeof "long long" ${sizeof_long_long} 93 94check_sizeof "void *" ${sizeof_data_ptr} 95check_sizeof "void (*)(void)" ${sizeof_func_ptr} 96 97check_sizeof "float" ${sizeof_float} 98check_sizeof "double" ${sizeof_double} 99check_sizeof "long double" ${sizeof_long_double} 100 101proc check_valueof { exp val } { 102 global gdb_prompt 103 104 set pat [string_to_regexp "valueof (${exp}) == ${val}"] 105 gdb_test "next" "${pat}\[\r\n\]+\[0-9\].*" "check valueof \"$exp\"" 106} 107 108# Check that GDB and the target agree over the sign of a character. 109 110set signof_byte [get_integer_valueof "'\\377'" -1] 111set signof_char [get_integer_valueof "(int) (char) -1" -1] 112set signof_signed_char [get_integer_valueof "(int) (signed char) -1" -1] 113set signof_unsigned_char [get_integer_valueof "(int) (unsigned char) -1" -1] 114 115check_valueof "'\\377'" ${signof_byte} 116check_valueof "(int) (char) -1" ${signof_char} 117check_valueof "(int) (signed char) -1" ${signof_signed_char} 118check_valueof "(int) (unsigned char) -1" ${signof_unsigned_char} 119 120proc check_padding { fmt type val } { 121 global gdb_prompt 122 gdb_test_no_output "set padding_${type}.v = ${val}" 123 gdb_test "print padding_${type}.p1" "= \"The quick brown \"" 124 gdb_test "print${fmt} padding_${type}.v" "= ${val}" 125 gdb_test "print padding_${type}.p2" "\"The quick brown \".*" 126} 127 128# Check that GDB is managing to store a value in a struct field 129# without corrupting the fields immediately adjacent to it. 130 131check_padding "/d" "char" 1 132check_padding "/d" "short" 2 133check_padding "/d" "int" 4 134check_padding "/d" "long" 4 135check_padding "/d" "long_long" 8 136 137# use multiples of two which can be represented exactly 138check_padding "/f" "float" 1 139check_padding "/f" "double" 2 140check_padding "/f" "long_double" 4 141 142# 143# For reference, dump out the entire architecture 144# 145# The output is very long so use a while loop to consume it 146send_gdb "maint print arch\n" 147set ok 1 148while { $ok } { 149 gdb_expect { 150 -re ".*dump" { 151 #pass "maint print arch $ok" 152 #set ok [expr $ok + 1] 153 } 154 -re "$gdb_prompt $" { 155 pass "maint print arch" 156 set ok 0 157 } 158 timeout { 159 fail "maint print arch (timeout)" 160 set ok 0 161 } 162 } 163} 164