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381b76d7a3
Similarly to __vfprintf_internal and __vfscanf_internal, the internal implementation of syslog functions (__vsyslog_internal) takes a 'mode_flags' parameter used to select the format of long double parameters. This patch adds variants of the syslog functions that set 'mode_flags' to PRINTF_LDBL_USES_FLOAT128, thus enabling the correct printing of long double values on powerpc64le, when long double has IEEE binary128 format (-mabi=ieeelongdouble). Tested for powerpc64le. Reviewed-by: Florian Weimer <fweimer@redhat.com> Reviewed-by: Joseph Myers <joseph@codesourcery.com> Reviewed-by: Paul E. Murphy <murphyp@linux.ibm.com>
68 lines
1.9 KiB
C
68 lines
1.9 KiB
C
/* Test for the long double variants of *syslog* functions.
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Copyright (C) 2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library 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 GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <stdarg.h>
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#include <stddef.h>
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#include <syslog.h>
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#include <support/capture_subprocess.h>
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#include <support/check.h>
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static void
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do_test_one_call (void *last, ...)
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{
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long double ld = -1;
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va_list ap;
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/* Make syslog functions write to stderr with LOG_PERROR, so that it
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can be captured by support_capture_subprocess and verified. */
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openlog ("test-syslog", LOG_PERROR, LOG_USER);
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/* Call syslog functions that take a format string. */
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SYSLOG_FUNCTION SYSLOG_FUNCTION_PARAMS;
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va_start (ap, last);
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VSYSLOG_FUNCTION VSYSLOG_FUNCTION_PARAMS;
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va_end (ap);
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}
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static void
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do_test_call (void)
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{
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long double ld = -1;
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do_test_one_call (NULL, ld);
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}
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static int
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do_test (void)
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{
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struct support_capture_subprocess result;
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result = support_capture_subprocess ((void *) &do_test_call, NULL);
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do_test_call ();
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/* Compare against the expected output. */
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const char *expected =
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"test-syslog: -1.000000\n"
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"test-syslog: -1.000000\n";
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TEST_COMPARE_STRING (expected, result.err.buffer);
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return 0;
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}
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#include <support/test-driver.c>
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