110 lines
3.0 KiB
Plaintext
110 lines
3.0 KiB
Plaintext
# Copyright 2018 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the gdb testsuite
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# This tests that C11 _Alignof works in gdb, and that it agrees with
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# the compiler.
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# The types we're going to test.
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set typelist {
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char {unsigned char}
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short {unsigned short}
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int {unsigned int}
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long {unsigned long}
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{long long} {unsigned long long}
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float
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double {long double}
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}
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if {[has_int128_c]} {
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# Note we don't check "unsigned __int128" yet because at least gcc
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# canonicalizes the name to "__int128 unsigned", and there isn't a
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# c-exp.y production for this.
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# https://sourceware.org/bugzilla/show_bug.cgi?id=20991
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lappend typelist __int128
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}
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# Create the test file.
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set filename [standard_output_file align.c]
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set outfile [open $filename w]
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# Prologue.
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puts -nonewline $outfile "#define DEF(T,U) struct align_pair_ ## T ## _x_ ## U "
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puts $outfile "{ T one; U two; }"
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puts $outfile "unsigned a_void = _Alignof(void);"
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# First emit single items.
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foreach type $typelist {
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set utype [join [split $type] _]
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if {$type != $utype} {
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puts $outfile "typedef $type $utype;"
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}
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puts $outfile "$type item_$utype;"
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puts $outfile "unsigned a_$utype\n = _Alignof ($type);"
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set utype [join [split $type] _]
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}
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# Now emit all pairs.
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foreach type $typelist {
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set utype [join [split $type] _]
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foreach inner $typelist {
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set uinner [join [split $inner] _]
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puts $outfile "DEF ($utype, $uinner);"
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set joined "${utype}_x_${uinner}"
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puts $outfile "struct align_pair_$joined item_${joined};"
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puts $outfile "unsigned a_${joined}"
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puts $outfile " = _Alignof (struct align_pair_${joined});"
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}
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}
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# Epilogue.
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puts $outfile {
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int main() {
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return 0;
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}
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}
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close $outfile
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standard_testfile $filename
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if {[prepare_for_testing "failed to prepare" $testfile $srcfile {debug}]} {
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return -1
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}
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if {![runto_main]} {
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perror "test suppressed"
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return
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}
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foreach type $typelist {
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set utype [join [split $type] _]
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set expected [get_integer_valueof a_$utype 0]
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gdb_test "print _Alignof($type)" " = $expected"
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foreach inner $typelist {
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set uinner [join [split $inner] _]
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set expected [get_integer_valueof a_${utype}_x_${uinner} 0]
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gdb_test "print _Alignof(struct align_pair_${utype}_x_${uinner})" \
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" = $expected"
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}
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}
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set expected [get_integer_valueof a_void 0]
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gdb_test "print _Alignof(void)" " = $expected"
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