|
| 1 | +# This testcase is part of GDB, the GNU debugger. |
| 2 | + |
| 3 | +# Copyright 2017 Free Software Foundation, Inc. |
| 4 | + |
| 5 | +# This program is free software; you can redistribute it and/or modify |
| 6 | +# it under the terms of the GNU General Public License as published by |
| 7 | +# the Free Software Foundation; either version 3 of the License, or |
| 8 | +# (at your option) any later version. |
| 9 | +# |
| 10 | +# This program is distributed in the hope that it will be useful, |
| 11 | +# but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | +# GNU General Public License for more details. |
| 14 | +# |
| 15 | +# You should have received a copy of the GNU General Public License |
| 16 | +# along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 | + |
| 18 | +# Test GDB's awareness of the char16_t, char32_t (C++11+) built-in |
| 19 | +# types. We also run most tests here in C mode, and check whether the |
| 20 | +# built-ins are disabled (gdb uses the typedefs in the debug info |
| 21 | +# instead.) |
| 22 | + |
| 23 | +standard_testfile |
| 24 | + |
| 25 | +# Test char16_t/char32_t in language LANG, against symbols in |
| 26 | +# a program. Lang can be "c", "c++03" or "c++11". In C++11, |
| 27 | +# char16_t/char32_t are built-in types, and the debug information |
| 28 | +# reflects that (see |
| 29 | +# http://wiki.dwarfstd.org/index.php?title=C%2B%2B0x:_New_string_literals). |
| 30 | + |
| 31 | +proc wide_char_types_program {lang} { |
| 32 | + global srcfile testfile |
| 33 | + |
| 34 | + set options {debug} |
| 35 | + if {$lang == "c++03"} { |
| 36 | + lappend options c++ additional_flags=-std=c++03 |
| 37 | + set out $testfile-cxx03 |
| 38 | + } elseif {$lang == "c++11"} { |
| 39 | + lappend options c++ additional_flags=-std=c++11 |
| 40 | + set out $testfile-cxx11 |
| 41 | + } else { |
| 42 | + set out $testfile-c |
| 43 | + } |
| 44 | + |
| 45 | + if { [prepare_for_testing "failed to prepare" \ |
| 46 | + ${out} [list $srcfile] $options] } { |
| 47 | + return -1 |
| 48 | + } |
| 49 | + |
| 50 | + if ![runto_main] then { |
| 51 | + fail "can't run to main" |
| 52 | + return 0 |
| 53 | + } |
| 54 | + do_test_wide_char $lang "u16" "u32" |
| 55 | +} |
| 56 | + |
| 57 | +# Test char16_t/char32_t in language LANG. Use CHAR16_EXP and |
| 58 | +# CHAR32_EXP as expression for each of the corresponding types. |
| 59 | +# (E.g., CHAR16_EXP will be u16 when testing against the program, and |
| 60 | +# "(char16_t)-1" when testing the built-in types without a program |
| 61 | +# loaded.) |
| 62 | + |
| 63 | +proc do_test_wide_char {lang char16_exp char32_exp} { |
| 64 | + global gdb_prompt |
| 65 | + |
| 66 | + # Check that the fixed-width wide types are distinct built-in |
| 67 | + # types in C++11+. In other modes, they're instead typedefs, |
| 68 | + # found in the debug info. |
| 69 | + if {$lang == "c++11"} { |
| 70 | + gdb_test "ptype $char16_exp" "type = char16_t" \ |
| 71 | + "char16_t is distinct" |
| 72 | + gdb_test "ptype $char32_exp" "type = char32_t" \ |
| 73 | + "char32_t is distinct" |
| 74 | + } else { |
| 75 | + gdb_test "ptype $char16_exp" "type = unsigned (long|int|short)" \ |
| 76 | + "char16_t is typedef" |
| 77 | + gdb_test "ptype $char32_exp" "type = unsigned (long|int|short)" \ |
| 78 | + "char32_t is typedef" |
| 79 | + } |
| 80 | + |
| 81 | + # Check that the fixed-width wide char types are unsigned. |
| 82 | + gdb_test "p $char16_exp" " = 65535 u'\\\\xffff'" \ |
| 83 | + "char16_t is unsigned" |
| 84 | + gdb_test "p $char32_exp" " = 4294967295 U'\\\\xffffffff'" \ |
| 85 | + "char32_t is unsigned" |
| 86 | + |
| 87 | + # Check sizeof. These are fixed-width. |
| 88 | + gdb_test "p sizeof($char16_exp)" "= 2" \ |
| 89 | + "sizeof($char16_exp) == 2" |
| 90 | + gdb_test "p sizeof($char32_exp)" "= 4" \ |
| 91 | + "sizeof(char16_t) == 4" |
| 92 | + |
| 93 | + # Test printing wide literal strings. Note that when testing with |
| 94 | + # no program started, this relies on GDB's awareness of the |
| 95 | + # built-in wide char types. |
| 96 | + gdb_test {p U"hello"} {= U"hello"} |
| 97 | + gdb_test {p u"hello"} {= u"hello"} |
| 98 | +} |
| 99 | + |
| 100 | +# Make sure that the char16_t/char32_t types are recognized as |
| 101 | +# distinct built-in types in C++ mode, even with no program loaded. |
| 102 | +# Check that in C mode, the types are not recognized. |
| 103 | + |
| 104 | +proc wide_char_types_no_program {} { |
| 105 | + global srcfile testfile |
| 106 | + |
| 107 | + gdb_exit |
| 108 | + gdb_start |
| 109 | + |
| 110 | + # These types are not built-in in C. |
| 111 | + with_test_prefix "c" { |
| 112 | + gdb_test "set language c" |
| 113 | + |
| 114 | + gdb_test "p (char16_t) -1" "No symbol table is loaded.*" \ |
| 115 | + "char16_t is not built-in" |
| 116 | + gdb_test "p (char32_t) -1" "No symbol table is loaded.*" \ |
| 117 | + "char32_t is not built-in" |
| 118 | + |
| 119 | + gdb_test {p U"hello"} "No type named char32_t\\\." |
| 120 | + gdb_test {p u"hello"} "No type named char16_t\\\." |
| 121 | + } |
| 122 | + |
| 123 | + # Note GDB does not distinguish C++ dialects, so the fixed-width |
| 124 | + # types are always available in C++ mode, even if they were not |
| 125 | + # built-in types before C++11. |
| 126 | + with_test_prefix "c++" { |
| 127 | + gdb_test "set language c++" |
| 128 | + |
| 129 | + do_test_wide_char "c++11" "(char16_t) -1" "(char32_t) -1" |
| 130 | + } |
| 131 | +} |
| 132 | + |
| 133 | +# Check wide char types with no program loaded. |
| 134 | +with_test_prefix "no program" { |
| 135 | + wide_char_types_no_program |
| 136 | +} |
| 137 | + |
| 138 | +# Check types when a program is loaded. |
| 139 | +with_test_prefix "with program" { |
| 140 | + foreach_with_prefix lang {"c" "c++03" "c++11"} { |
| 141 | + wide_char_types_program $lang |
| 142 | + } |
| 143 | +} |
0 commit comments