Thanks for the fixes. I made some style tweaks, committed as follows
after bootstrap and testing.
Ian
2017-10-02 Ian Lance Taylor <i...@golang.org>
* ztest.c: #include <errno.h>.
(TEST_TIMING): Don't define, don't test.
(xclock_gettime, xclockid_t): Define if !HAVE_CLOCK_GETTIME.
(clockid_t, clock_gettime, CLOCK_REALTIME): Likewise.
(ZLIB_CLOCK_GETTIME_ARG): Define.
* configure.ac: Change clock_gettime_link to CLOCK_GETTIME_LINK.
* Makefile.am: Likewise.
* configure, Makefile.in: Rebuild.
Index: Makefile.am
===================================================================
--- Makefile.am (revision 253376)
+++ Makefile.am (working copy)
@@ -108,7 +108,7 @@ ztest_LDADD = libbacktrace.la
if HAVE_ZLIB
ztest_LDADD += -lz
endif
-ztest_LDADD += $(clock_gettime_link)
+ztest_LDADD += $(CLOCK_GETTIME_LINK)
check_PROGRAMS += ztest
Index: configure.ac
===================================================================
--- configure.ac (revision 253376)
+++ configure.ac (working copy)
@@ -397,11 +397,11 @@ clock_gettime_link=
# we're using this for test timing only.
if test "$ac_cv_func_clock_gettime" = no; then
AC_CHECK_LIB(rt, clock_gettime,
- [clock_gettime_link=-lrt
+ [CLOCK_GETTIME_LINK=-lrt
AC_DEFINE(HAVE_CLOCK_GETTIME, 1,
[Define to 1 if you have the `clock_gettime' function.])])
fi
-AC_SUBST(clock_gettime_link)
+AC_SUBST(CLOCK_GETTIME_LINK)
dnl Test whether the compiler supports the -pthread option.
AC_CACHE_CHECK([whether -pthread is supported],
Index: ztest.c
===================================================================
--- ztest.c (revision 253376)
+++ ztest.c (working copy)
@@ -32,6 +32,7 @@ POSSIBILITY OF SUCH DAMAGE. */
#include "config.h"
+#include <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
@@ -43,16 +44,37 @@ POSSIBILITY OF SUCH DAMAGE. */
#include <zlib.h>
#endif
-#ifdef HAVE_CLOCK_GETTIME
-# define TEST_TIMING
-#endif
-
#include "backtrace.h"
#include "backtrace-supported.h"
#include "internal.h"
#include "testlib.h"
+#ifndef HAVE_CLOCK_GETTIME
+
+typedef int xclockid_t;
+
+static int
+xclock_gettime (xclockid_t id ATTRIBUTE_UNUSED,
+ struct timespec *ts ATTRIBUTE_UNUSED)
+{
+ errno = EINVAL;
+ return -1;
+}
+
+#define clockid_t xclockid_t
+#define clock_gettime xclock_gettime
+#undef CLOCK_REALTIME
+#define CLOCK_REALTIME 0
+
+#endif /* !defined(HAVE_CLOCK_GETTIME) */
+
+#ifdef CLOCK_PROCESS_CPUTIME_ID
+#define ZLIB_CLOCK_GETTIME_ARG CLOCK_PROCESS_CPUTIME_ID
+#else
+#define ZLIB_CLOCK_GETTIME_ARG CLOCK_REALTIME
+#endif
+
/* Some tests for the local zlib inflation code. */
struct zlib_test
@@ -161,7 +183,7 @@ test_samples (struct backtrace_state *st
}
}
-#if defined HAVE_ZLIB && defined TEST_TIMING
+#ifdef HAVE_ZLIB
/* Given a set of TRIALS timings, discard the lowest and highest
values and return the mean average of the rest. */
@@ -220,7 +242,6 @@ test_large (struct backtrace_state *stat
unsigned char *uncompressed_buf;
size_t uncompressed_bufsize;
int r;
-# ifdef TEST_TIMING
clockid_t cid;
struct timespec ts1;
struct timespec ts2;
@@ -229,7 +250,6 @@ test_large (struct backtrace_state *stat
const size_t trials = 16;
size_t ctimes[16];
size_t ztimes[16];
-# endif /* TEST_TIMING */
static const char * const names[] = {
"Mark.Twain-Tom.Sawyer.txt",
"../libgo/go/compress/testdata/Mark.Twain-Tom.Sawyer.txt"
@@ -347,16 +367,13 @@ test_large (struct backtrace_state *stat
printf ("PASS: inflate large\n");
-# ifdef TEST_TIMING
-
for (i = 0; i < trials; ++i)
{
- cid = CLOCK_REALTIME;
-#ifdef CLOCK_PROCESS_CPUTIME_ID
- cid = CLOCK_PROCESS_CPUTIME_ID;
-#endif
+ cid = ZLIB_CLOCK_GETTIME_ARG;
if (clock_gettime (cid, &ts1) < 0)
{
+ if (errno == EINVAL)
+ return;
perror ("clock_gettime");
return;
}
@@ -419,8 +436,6 @@ test_large (struct backtrace_state *stat
printf ("zlib time: : %zu ns\n", ztime);
printf ("percentage : %g\n", (double) ztime / (double) ctime);
-# endif /* TEST_TIMING */
-
return;
fail:
