1 /* Self tests for ptid_t for GDB, the GNU debugger. 2 3 Copyright (C) 2017-2023 Free Software Foundation, Inc. 4 5 This file is part of GDB. 6 7 This program is free software; you can redistribute it and/or modify 8 it under the terms of the GNU General Public License as published by 9 the Free Software Foundation; either version 3 of the License, or 10 (at your option) any later version. 11 12 This program is distributed in the hope that it will be useful, 13 but WITHOUT ANY WARRANTY; without even the implied warranty of 14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 GNU General Public License for more details. 16 17 You should have received a copy of the GNU General Public License 18 along with this program. If not, see <http://www.gnu.org/licenses/>. */ 19 20 #include "defs.h" 21 #include "gdbsupport/ptid.h" 22 #include <type_traits> 23 24 namespace selftests { 25 namespace ptid { 26 27 /* Check that the ptid_t class is POD. 28 29 This is a requirement for as long as we have ptids embedded in 30 structures allocated with malloc. */ 31 32 static_assert (std::is_pod<ptid_t>::value, "ptid_t is POD"); 33 34 /* We want to avoid implicit conversion from int to ptid_t. */ 35 36 static_assert (!std::is_convertible<int, ptid_t>::value, 37 "constructor is explicit"); 38 39 /* Build some useful ptids. */ 40 41 static constexpr ptid_t pid = ptid_t (1); 42 static constexpr ptid_t lwp = ptid_t (1, 2, 0); 43 static constexpr ptid_t tid = ptid_t (1, 0, 2); 44 static constexpr ptid_t both = ptid_t (1, 2, 2); 45 46 /* Build some constexpr version of null_ptid and minus_one_ptid to use in 47 static_assert. Once the real ones are made constexpr, we can get rid of 48 these. */ 49 50 static constexpr ptid_t null = ptid_t::make_null (); 51 static constexpr ptid_t minus_one = ptid_t::make_minus_one (); 52 53 /* Verify pid. */ 54 55 static_assert (pid.pid () == 1, "pid's pid is right"); 56 static_assert (lwp.pid () == 1, "lwp's pid is right"); 57 static_assert (tid.pid () == 1, "tid's pid is right"); 58 static_assert (both.pid () == 1, "both's pid is right"); 59 60 /* Verify lwp_p. */ 61 62 static_assert (!pid.lwp_p (), "pid's lwp_p is right"); 63 static_assert (lwp.lwp_p (), "lwp's lwp_p is right"); 64 static_assert (!tid.lwp_p (), "tid's lwp_p is right"); 65 static_assert (both.lwp_p (), "both's lwp_p is right"); 66 67 /* Verify lwp. */ 68 69 static_assert (pid.lwp () == 0, "pid's lwp is right"); 70 static_assert (lwp.lwp () == 2, "lwp's lwp is right"); 71 static_assert (tid.lwp () == 0, "tid's lwp is right"); 72 static_assert (both.lwp () == 2, "both's lwp is right"); 73 74 /* Verify tid_p. */ 75 76 static_assert (!pid.tid_p (), "pid's tid_p is right"); 77 static_assert (!lwp.tid_p (), "lwp's tid_p is right"); 78 static_assert (tid.tid_p (), "tid's tid_p is right"); 79 static_assert (both.tid_p (), "both's tid_p is right"); 80 81 /* Verify tid. */ 82 83 static_assert (pid.tid () == 0, "pid's tid is right"); 84 static_assert (lwp.tid () == 0, "lwp's tid is right"); 85 static_assert (tid.tid () == 2, "tid's tid is right"); 86 static_assert (both.tid () == 2, "both's tid is right"); 87 88 /* Verify is_pid. */ 89 90 static_assert (pid.is_pid (), "pid is a pid"); 91 static_assert (!lwp.is_pid (), "lwp isn't a pid"); 92 static_assert (!tid.is_pid (), "tid isn't a pid"); 93 static_assert (!both.is_pid (), "both isn't a pid"); 94 static_assert (!null.is_pid (), "null ptid isn't a pid"); 95 static_assert (!minus_one.is_pid (), "minus one ptid isn't a pid"); 96 97 /* Verify operator ==. */ 98 99 static_assert (pid == ptid_t (1, 0, 0), "pid operator== is right"); 100 static_assert (lwp == ptid_t (1, 2, 0), "lwp operator== is right"); 101 static_assert (tid == ptid_t (1, 0, 2), "tid operator== is right"); 102 static_assert (both == ptid_t (1, 2, 2), "both operator== is right"); 103 104 /* Verify operator !=. */ 105 106 static_assert (pid != ptid_t (2, 0, 0), "pid isn't equal to a different pid"); 107 static_assert (pid != lwp, "pid isn't equal to one of its thread"); 108 static_assert (lwp != tid, "lwp isn't equal to tid"); 109 static_assert (both != lwp, "both isn't equal to lwp"); 110 static_assert (both != tid, "both isn't equal to tid"); 111 112 /* Verify matches against minus_one. */ 113 114 static_assert (pid.matches (minus_one), "pid matches minus one"); 115 static_assert (lwp.matches (minus_one), "lwp matches minus one"); 116 static_assert (tid.matches (minus_one), "tid matches minus one"); 117 static_assert (both.matches (minus_one), "both matches minus one"); 118 119 /* Verify matches against pid. */ 120 121 static_assert (pid.matches (pid), "pid matches pid"); 122 static_assert (lwp.matches (pid), "lwp matches pid"); 123 static_assert (tid.matches (pid), "tid matches pid"); 124 static_assert (both.matches (pid), "both matches pid"); 125 static_assert (!ptid_t (2, 0, 0).matches (pid), "other pid doesn't match pid"); 126 static_assert (!ptid_t (2, 2, 0).matches (pid), "other lwp doesn't match pid"); 127 static_assert (!ptid_t (2, 0, 2).matches (pid), "other tid doesn't match pid"); 128 static_assert (!ptid_t (2, 2, 2).matches (pid), "other both doesn't match pid"); 129 130 /* Verify matches against exact matches. */ 131 132 static_assert (!pid.matches (lwp), "pid doesn't match lwp"); 133 static_assert (lwp.matches (lwp), "lwp matches lwp"); 134 static_assert (!tid.matches (lwp), "tid doesn't match lwp"); 135 static_assert (!both.matches (lwp), "both doesn't match lwp"); 136 static_assert (!ptid_t (2, 2, 0).matches (lwp), "other lwp doesn't match lwp"); 137 138 static_assert (!pid.matches (tid), "pid doesn't match tid"); 139 static_assert (!lwp.matches (tid), "lwp doesn't match tid"); 140 static_assert (tid.matches (tid), "tid matches tid"); 141 static_assert (!both.matches (tid), "both doesn't match tid"); 142 static_assert (!ptid_t (2, 0, 2).matches (tid), "other tid doesn't match tid"); 143 144 static_assert (!pid.matches (both), "pid doesn't match both"); 145 static_assert (!lwp.matches (both), "lwp doesn't match both"); 146 static_assert (!tid.matches (both), "tid doesn't match both"); 147 static_assert (both.matches (both), "both matches both"); 148 static_assert (!ptid_t (2, 2, 2).matches (both), 149 "other both doesn't match both"); 150 151 152 } /* namespace ptid */ 153 } /* namespace selftests */ 154