binutils-gdb/gdb/gdbsupport/common.m4
Tom Tromey c12d372d26 Check for sigprocmask in common.m4
I noticed that gdbsupport uses HAVE_SIGPROCMASK, but common.m4 does
not check for it.  This means that gdbserver may not compile some
gdbsupport code properly.  This patch fixes this error.

gdb/ChangeLog
2019-10-23  Tom Tromey  <tom@tromey.com>

	* configure: Rebuild.
	* configure.ac: Don't check for sigprocmask.
	* gdbsupport/common.m4 (GDB_AC_COMMON): Check for sigprocmask.

gdb/gdbserver/ChangeLog
2019-10-23  Tom Tromey  <tom@tromey.com>

	* configure, config.in: Rebuild.

Change-Id: I2c0a4dd2c376507b9483b38707a242382faa8163
2019-10-23 09:06:21 -06:00

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dnl Autoconf configure snippets for common.
dnl Copyright (C) 1995-2019 Free Software Foundation, Inc.
dnl
dnl This file is part of GDB.
dnl
dnl This program is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU General Public License as published by
dnl the Free Software Foundation; either version 3 of the License, or
dnl (at your option) any later version.
dnl
dnl This program is distributed in the hope that it will be useful,
dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
dnl GNU General Public License for more details.
dnl
dnl You should have received a copy of the GNU General Public License
dnl along with this program. If not, see <http://www.gnu.org/licenses/>.
dnl Invoke configury needed by the files in 'common'.
AC_DEFUN([GDB_AC_COMMON], [
AC_HEADER_STDC
AC_FUNC_ALLOCA
dnl Note that this requires codeset.m4, which is included
dnl by the users of common.m4.
AM_LANGINFO_CODESET
AC_CHECK_HEADERS(linux/perf_event.h locale.h memory.h signal.h dnl
sys/resource.h sys/socket.h dnl
sys/un.h sys/wait.h dnl
thread_db.h wait.h dnl
termios.h dnl
dlfcn.h)
AC_CHECK_FUNCS([fdwalk getrlimit pipe pipe2 socketpair sigaction \
sigprocmask])
AC_CHECK_DECLS([strerror, strstr])
dnl Check if sigsetjmp is available. Using AC_CHECK_FUNCS won't
dnl do since sigsetjmp might only be defined as a macro.
AC_CACHE_CHECK([for sigsetjmp], gdb_cv_func_sigsetjmp,
[AC_TRY_COMPILE([
#include <setjmp.h>
], [sigjmp_buf env; while (! sigsetjmp (env, 1)) siglongjmp (env, 1);],
gdb_cv_func_sigsetjmp=yes, gdb_cv_func_sigsetjmp=no)])
if test $gdb_cv_func_sigsetjmp = yes; then
AC_DEFINE(HAVE_SIGSETJMP, 1, [Define if sigsetjmp is available. ])
fi
])