Rewrite mktime from scratch for performance, and for correctness
in the presence of leap seconds.
* time/mktime.c (ydhms_tm_diff, not_equal_tm, print_tm, check_result):
New functions.
(LEAP_SECONDS_POSSIBLE, CHAR_BIT, INT_MIN, INT_MAX,
TIME_T_MIN, TIME_T_MAX, TM_YEAR_BASE, EPOCH_YEAR): New macros.
<limits.h>, <stdlib.h>: New #includes.
(main): Support tests with given broken-down value; support benchmarks.
(__mon_lengths, debugging_enabled, printtm, dist_tm, doit,
do_normalization, normalize, BAD_STRUCT_TM, SKIP_VALUE,
<ctype.h>): Remove.
* time/time.h, time/mktime.c (__mktime_internal): New offset arg.
* time/mktime.c (mktime), time/timegm.c (timegm): Use it.
* time/mktime.c (__mon_yday): New variable; replaces `__mon_lengths'.
time/offtime.c (__offtime), time/tzset.c (compute_change): Use it.
* time/offtime.c (__offtime): Remove useless assignment
`tp->tm_isdst = -1'.
* manual/maint.texi: Update credits.
Fri Oct 6 00:28:53 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/common/readv.S: Moved to sysdeps/unix/bsd.
* sysdeps/unix/common/writev.S: Moved to sysdeps/unix/bsd.
* sysdeps/unix/sysv/linux/readv.c: File removed.
* sysdeps/unix/sysv/linux/writev.c: File removed.
* sysdeps/unix/configure.in: Check for readv and writev syscalls.
* sysdeps/unix/configure.in: If eval doesn't set $unix_srcname,
set it to $unix_syscall instead of $unix_function.
* gmon: New directory of profiling code, incorporated from
4.4BSD-Lite and modified.
* sysdeps/i386/machine-gmon.h: New file.
* sysdeps/stub/machine-gmon.h: New file.
* sysdeps/mach/hurd/profil.c: New file.
* sysdeps/stub/profil.c: New file.
* sysdeps/unix/bsd/profil.S: New file.
* Makefile (subdirs): Add gmon.
* csu/gmon-start.c: New file.
* csu/Makefile (extra-objs): Add gmon-start.o,
g$(start-installed-name).
(install-lib, omit-deps): Add g$(start-installed-name).
($(objpfx)g$(start-installed-name)): New target.
Sun Apr 16 03:23:09 1995 Brendan Kehoe (brendan@zen.org)
* /sysdeps/unix/bsd/ultrix4/mips/sysdep.h: New file defining
NO_UNDERSCORES then using sysdeps/unix/mips/sysdep.h.
* csu/Makefile (crtstuff): New variable consolidates crti, crtn;
add crti_s, crtn_s.
(install-lib, extra-objs, generated-, omit-deps): Use that.
(initfini): New canned sequence, broken out of crt[in].s rule.
(crt[in].s rule): Use it.
(crt[in]_s.s): New rule.
* csu/initfini.c (GLOBAL): New macro; define it to empty if undefined.
(_init, _fini): Use GLOBAL as storage class.
Add self reference to avoid GCC optimizing out the functions.
* Makefile (headers): Remove $(stddef.h).
* Makeconfig (stddef.h): Variable removed; now require gcc version
>= 2.2.
* stddef.h: File removed.
Mon Feb 20 19:42:31 1995 Roland McGrath <roland@churchy.gnu.ai.mit.edu>
* sysdeps/unix/bsd/ultrix4/mips/start.S: Remove `__environ'
definition.
* sysdeps/unix/bsd/osf1/alpha/start.S: Likewise.
* stdlib/strtod.c: Allow the string to start with a decimal point
without a leading zero.
