b0d29bc47d
Having kyua in the base system will simplify automated testing in CI and eliminates bootstrapping issues on new platforms. The build of kyua is controlled by WITH(OUT)_TESTS_SUPPORT. Reviewed by: emaste Obtained from: CheriBSD Sponsored by: DARPA Differential Revision: https://reviews.freebsd.org/D24103
93 lines
3.1 KiB
Plaintext
93 lines
3.1 KiB
Plaintext
dnl Copyright 2010 The Kyua Authors.
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dnl All rights reserved.
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dnl
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dnl Redistribution and use in source and binary forms, with or without
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dnl modification, are permitted provided that the following conditions are
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dnl met:
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dnl
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dnl * Redistributions of source code must retain the above copyright
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dnl notice, this list of conditions and the following disclaimer.
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dnl * Redistributions in binary form must reproduce the above copyright
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dnl notice, this list of conditions and the following disclaimer in the
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dnl documentation and/or other materials provided with the distribution.
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dnl * Neither the name of Google Inc. nor the names of its contributors
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dnl may be used to endorse or promote products derived from this software
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dnl without specific prior written permission.
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dnl
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dnl THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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dnl "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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dnl LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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dnl A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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dnl OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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dnl SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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dnl LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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dnl DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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dnl THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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dnl (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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dnl OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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dnl
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dnl KYUA_LAST_SIGNO
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dnl
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dnl Detect the last valid signal number.
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dnl
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AC_DEFUN([KYUA_LAST_SIGNO], [
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AC_CACHE_CHECK(
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[for the last valid signal],
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[kyua_cv_signals_lastno], [
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AC_RUN_IFELSE([AC_LANG_PROGRAM([#include <err.h>
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#include <errno.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stdio.h>
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#include <stdlib.h>], [
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static const int max_signals = 256;
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int i;
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FILE *f;
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i = 0;
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while (i < max_signals) {
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i++;
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if (i != SIGKILL && i != SIGSTOP) {
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struct sigaction sa;
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int ret;
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sa.sa_handler = SIG_DFL;
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sigemptyset(&sa.sa_mask);
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sa.sa_flags = 0;
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ret = sigaction(i, &sa, NULL);
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if (ret == -1) {
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warn("sigaction(%d) failed", i);
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if (errno == EINVAL) {
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i--;
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break;
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} else
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err(EXIT_FAILURE, "sigaction failed");
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}
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}
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}
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if (i == max_signals)
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errx(EXIT_FAILURE, "too many signals");
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f = fopen("conftest.cnt", "w");
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if (f == NULL)
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err(EXIT_FAILURE, "failed to open file");
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fprintf(f, "%d\n", i);
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fclose(f);
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return EXIT_SUCCESS;
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])],
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[if test ! -f conftest.cnt; then
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kyua_cv_signals_lastno=15
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else
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kyua_cv_signals_lastno=$(cat conftest.cnt)
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rm -f conftest.cnt
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fi],
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[kyua_cv_signals_lastno=15])
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])
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AC_DEFINE_UNQUOTED([LAST_SIGNO], [${kyua_cv_signals_lastno}],
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[Define to the last valid signal number])
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])
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