diff options
| -rw-r--r-- | ChangeLog | 10 | ||||
| -rw-r--r-- | NEWS | 2 | ||||
| -rw-r--r-- | bits/time.h | 8 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/time.h | 8 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/clock.c | 7 | ||||
| -rw-r--r-- | time/clocktest.c | 4 |
6 files changed, 24 insertions, 15 deletions
@@ -1,3 +1,13 @@ +2015-01-06 H.J. Lu <hongjiu.lu@intel.com> + + [BZ #17797] + * bits/time.h (CLOCKS_PER_SEC): Changed to ((clock_t) 1000000). + * sysdeps/unix/sysv/linux/bits/time.h (CLOCKS_PER_SEC): Likewise. + * sysdeps/unix/sysv/linux/clock.c (clock): _Static_assert + CLOCKS_PER_SEC == 1000000. + * time/clocktest.c (main): Replace %ld with %jd and cast to + intmax_t. + 2015-01-05 Roland McGrath <roland@hack.frob.com> * sysdeps/generic/unwind-resume.h: New file. @@ -16,7 +16,7 @@ Version 2.21 17583, 17584, 17585, 17589, 17594, 17601, 17608, 17616, 17625, 17630, 17633, 17634, 17635, 17647, 17653, 17657, 17664, 17665, 17668, 17682, 17717, 17719, 17722, 17723, 17724, 17725, 17732, 17733, 17744, 17745, - 17746, 17747, 17775, 17777, 17780, 17781, 17782, 17793, 17796 + 17746, 17747, 17775, 17777, 17780, 17781, 17782, 17793, 17796, 17797 * i386 memcpy functions optimized with SSE2 unaligned load/store. diff --git a/bits/time.h b/bits/time.h index ae17b7f..7585ddf 100644 --- a/bits/time.h +++ b/bits/time.h @@ -24,13 +24,13 @@ # ifndef _BITS_TIME_H # define _BITS_TIME_H 1 -/* ISO/IEC 9899:1990 7.12.1: <time.h> - The macro `CLOCKS_PER_SEC' is the number per second of the value - returned by the `clock' function. */ +/* ISO/IEC 9899:1999 7.23.1: Components of time + The macro `CLOCKS_PER_SEC' is an expression with type `clock_t' that is + the number per second of the value returned by the `clock' function. */ /* CAE XSH, Issue 4, Version 2: <time.h> The value of CLOCKS_PER_SEC is required to be 1 million on all XSI-conformant systems. */ -# define CLOCKS_PER_SEC 1000000l +# define CLOCKS_PER_SEC ((clock_t) 1000000) # if !defined __STRICT_ANSI__ && !defined __USE_XOPEN2K /* Even though CLOCKS_PER_SEC has such a strange value CLK_TCK diff --git a/sysdeps/unix/sysv/linux/bits/time.h b/sysdeps/unix/sysv/linux/bits/time.h index 226d6dd..706946c 100644 --- a/sysdeps/unix/sysv/linux/bits/time.h +++ b/sysdeps/unix/sysv/linux/bits/time.h @@ -39,13 +39,13 @@ struct timeval # ifndef _BITS_TIME_H # define _BITS_TIME_H 1 -/* ISO/IEC 9899:1990 7.12.1: <time.h> - The macro `CLOCKS_PER_SEC' is the number per second of the value - returned by the `clock' function. */ +/* ISO/IEC 9899:1999 7.23.1: Components of time + The macro `CLOCKS_PER_SEC' is an expression with type `clock_t' that is + the number per second of the value returned by the `clock' function. */ /* CAE XSH, Issue 4, Version 2: <time.h> The value of CLOCKS_PER_SEC is required to be 1 million on all XSI-conformant systems. */ -# define CLOCKS_PER_SEC 1000000l +# define CLOCKS_PER_SEC ((clock_t) 1000000) # if (!defined __STRICT_ANSI__ || defined __USE_POSIX) \ && !defined __USE_XOPEN2K diff --git a/sysdeps/unix/sysv/linux/clock.c b/sysdeps/unix/sysv/linux/clock.c index e06c4b3..e568bf3 100644 --- a/sysdeps/unix/sysv/linux/clock.c +++ b/sysdeps/unix/sysv/linux/clock.c @@ -20,15 +20,14 @@ #include <time.h> #include <unistd.h> -#if CLOCKS_PER_SEC != 1000000l -# error "CLOCKS_PER_SEC should be 1000000" -#endif - clock_t clock (void) { struct timespec ts; + _Static_assert (CLOCKS_PER_SEC == 1000000, + "CLOCKS_PER_SEC should be 1000000"); + /* clock_gettime shouldn't fail here since CLOCK_PROCESS_CPUTIME_ID is supported since 2.6.12. Check the return value anyway in case the kernel barfs on us for some reason. */ diff --git a/time/clocktest.c b/time/clocktest.c index 2e6457d..13b7420 100644 --- a/time/clocktest.c +++ b/time/clocktest.c @@ -30,7 +30,7 @@ main (int argc, char ** argv) printf ("%jd clock ticks per second (start=%jd,stop=%jd)\n", (intmax_t) (stop - start), (intmax_t) start, (intmax_t) stop); - printf ("CLOCKS_PER_SEC=%ld, sysconf(_SC_CLK_TCK)=%ld\n", - CLOCKS_PER_SEC, sysconf(_SC_CLK_TCK)); + printf ("CLOCKS_PER_SEC=%jd, sysconf(_SC_CLK_TCK)=%ld\n", + (intmax_t) CLOCKS_PER_SEC, sysconf(_SC_CLK_TCK)); return 0; } |