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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
51 lines
1.8 KiB
Plaintext
51 lines
1.8 KiB
Plaintext
dnl Sanitization-related configure macro for GDB
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dnl Copyright (C) 2018-2022 Free Software Foundation, Inc.
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dnl
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dnl This file is part of GDB.
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dnl
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dnl This program is free software; you can redistribute it and/or modify
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dnl it under the terms of the GNU General Public License as published by
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dnl the Free Software Foundation; either version 3 of the License, or
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dnl (at your option) any later version.
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dnl
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dnl This program is distributed in the hope that it will be useful,
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dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
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dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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dnl GNU General Public License for more details.
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dnl
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dnl You should have received a copy of the GNU General Public License
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dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
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AC_DEFUN([AM_GDB_UBSAN],[
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AC_ARG_ENABLE(ubsan,
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AS_HELP_STRING([--enable-ubsan],
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[enable undefined behavior sanitizer (auto/yes/no)]),
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[],enable_ubsan=no)
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if test "x$enable_ubsan" = xauto; then
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if $development; then
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enable_ubsan=yes
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fi
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fi
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AC_LANG_PUSH([C++])
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if test "x$enable_ubsan" = xyes; then
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AC_MSG_CHECKING(whether -fsanitize=undefined is accepted)
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saved_CXXFLAGS="$CXXFLAGS"
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CXXFLAGS="$CXXFLAGS -fsanitize=undefined -fno-sanitize-recover=undefined"
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dnl A link check is required because it is possible to install gcc
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dnl without libubsan, leading to link failures when compiling with
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dnl -fsanitize=undefined.
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AC_LINK_IFELSE(
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[AC_LANG_PROGRAM([], [])],
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[enable_ubsan=yes],
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[enable_ubsan=no]
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)
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CXXFLAGS="$saved_CXXFLAGS"
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AC_MSG_RESULT($enable_ubsan)
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if test "x$enable_ubsan" = xyes; then
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WARN_CFLAGS="$WARN_CFLAGS -fsanitize=undefined -fno-sanitize-recover=undefined"
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CONFIG_LDFLAGS="$CONFIG_LDFLAGS -fsanitize=undefined"
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fi
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fi
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AC_LANG_POP([C++])
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])
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