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42a4f53d | 1 | # Copyright 2018-2019 Free Software Foundation, Inc. |
007e1530 TT |
2 | |
3 | # This program is free software; you can redistribute it and/or modify | |
4 | # it under the terms of the GNU General Public License as published by | |
5 | # the Free Software Foundation; either version 3 of the License, or | |
6 | # (at your option) any later version. | |
7 | # | |
8 | # This program is distributed in the hope that it will be useful, | |
9 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | # GNU General Public License for more details. | |
12 | # | |
13 | # You should have received a copy of the GNU General Public License | |
14 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | # This file is part of the gdb testsuite | |
17 | ||
18 | # This tests that C11 _Alignof works in gdb, and that it agrees with | |
19 | # the compiler. | |
20 | ||
21 | # The types we're going to test. | |
22 | ||
23 | set typelist { | |
24 | char {unsigned char} | |
25 | short {unsigned short} | |
26 | int {unsigned int} | |
27 | long {unsigned long} | |
28 | {long long} {unsigned long long} | |
29 | float | |
30 | double {long double} | |
31 | } | |
32 | ||
33 | if {[has_int128_c]} { | |
34 | # Note we don't check "unsigned __int128" yet because at least gcc | |
35 | # canonicalizes the name to "__int128 unsigned", and there isn't a | |
36 | # c-exp.y production for this. | |
37 | # https://sourceware.org/bugzilla/show_bug.cgi?id=20991 | |
38 | lappend typelist __int128 | |
39 | } | |
40 | ||
41 | # Create the test file. | |
42 | ||
43 | set filename [standard_output_file align.c] | |
44 | set outfile [open $filename w] | |
45 | ||
46 | # Prologue. | |
47 | puts -nonewline $outfile "#define DEF(T,U) struct align_pair_ ## T ## _x_ ## U " | |
48 | puts $outfile "{ T one; U two; }" | |
49 | puts $outfile "unsigned a_void = _Alignof(void);" | |
50 | ||
51 | # First emit single items. | |
52 | foreach type $typelist { | |
53 | set utype [join [split $type] _] | |
54 | if {$type != $utype} { | |
55 | puts $outfile "typedef $type $utype;" | |
56 | } | |
57 | puts $outfile "$type item_$utype;" | |
58 | puts $outfile "unsigned a_$utype\n = _Alignof ($type);" | |
59 | set utype [join [split $type] _] | |
60 | } | |
61 | ||
62 | # Now emit all pairs. | |
63 | foreach type $typelist { | |
64 | set utype [join [split $type] _] | |
65 | foreach inner $typelist { | |
66 | set uinner [join [split $inner] _] | |
67 | puts $outfile "DEF ($utype, $uinner);" | |
68 | set joined "${utype}_x_${uinner}" | |
69 | puts $outfile "struct align_pair_$joined item_${joined};" | |
70 | puts $outfile "unsigned a_${joined}" | |
71 | puts $outfile " = _Alignof (struct align_pair_${joined});" | |
72 | } | |
73 | } | |
74 | ||
75 | # Epilogue. | |
76 | puts $outfile { | |
77 | int main() { | |
78 | return 0; | |
79 | } | |
80 | } | |
81 | ||
82 | close $outfile | |
83 | ||
84 | standard_testfile $filename | |
85 | ||
86 | if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug}]} { | |
87 | return -1 | |
88 | } | |
89 | ||
90 | if {![runto_main]} { | |
91 | perror "test suppressed" | |
92 | return | |
93 | } | |
94 | ||
95 | foreach type $typelist { | |
96 | set utype [join [split $type] _] | |
97 | set expected [get_integer_valueof a_$utype 0] | |
98 | gdb_test "print _Alignof($type)" " = $expected" | |
99 | ||
100 | foreach inner $typelist { | |
101 | set uinner [join [split $inner] _] | |
102 | set expected [get_integer_valueof a_${utype}_x_${uinner} 0] | |
103 | gdb_test "print _Alignof(struct align_pair_${utype}_x_${uinner})" \ | |
104 | " = $expected" | |
105 | } | |
106 | } | |
107 | ||
108 | set expected [get_integer_valueof a_void 0] | |
109 | gdb_test "print _Alignof(void)" " = $expected" |