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Implement proper time zone support

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Cosmopolitan now supports 104 time zones. They're embedded inside any
binary that links the localtime() function. Doing so adds about 100kb
to the binary size. This change also gets time zones working properly
on Windows for the first time. It's not needed to have /etc/localtime
exist on Windows, since we can get this information from WIN32. We're
also now updated to the latest version of Paul Eggert's TZ library.
This commit is contained in:
Justine Tunney 2024-05-04 23:05:36 -07:00
parent d5ebb1fa5b
commit b0df6c1fce
No known key found for this signature in database
GPG key ID: BE714B4575D6E328
627 changed files with 3052 additions and 2077 deletions
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8
libc/intrin/BUILD.mk
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@ -132,6 +132,14 @@ o/$(MODE)/libc/intrin/ktcpoptnames.o: libc/intrin/ktcpoptnames.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/intrin/stackcall.o: libc/intrin/stackcall.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/intrin/kmonthname.o: libc/intrin/kmonthname.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/intrin/kmonthnameshort.o: libc/intrin/kmonthnameshort.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/intrin/kweekdayname.o: libc/intrin/kweekdayname.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
o/$(MODE)/libc/intrin/kweekdaynameshort.o: libc/intrin/kweekdaynameshort.S
@$(COMPILE) -AOBJECTIFY.S $(OBJECTIFY.S) $(OUTPUT_OPTION) -c $<
LIBC_INTRIN_LIBS = $(foreach x,$(LIBC_INTRIN_ARTIFACTS),$($(x)))
LIBC_INTRIN_HDRS = $(foreach x,$(LIBC_INTRIN_ARTIFACTS),$($(x)_HDRS))

30
libc/intrin/kmonthname.S Normal file
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@ -0,0 +1,30 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/macros.internal.h"
// extern const char kMonthName[12][10];
.section .rodata,"a",@progbits
.underrun
kMonthName:
.ascin "January",10
.ascin "February",10
.ascin "March",10
.ascin "April",10
.ascin "May",10
.ascin "June",10
.ascin "July",10
.ascin "August",10
.ascin "September",10
.ascin "October",10
.ascin "November",10
.ascin "December",10
.endobj kMonthName,globl
.overrun
.previous

36
libc/intrin/kmonthnameshort.S Normal file
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@ -0,0 +1,36 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/macros.internal.h"
// Type #1:
// - Indexable C-String Array
// - extern const char kMonthNameShort[12][4];
// Type #2:
// - Double-NUL Terminated String
// - extern const char kMonthNameShort[];
.section .rodata,"a",@progbits
.underrun
kMonthNameShort:
.ascin "Jan",4
.ascin "Feb",4
.ascin "Mar",4
.ascin "Apr",4
.ascin "May",4
.ascin "Jun",4
.ascin "Jul",4
.ascin "Aug",4
.ascin "Sep",4
.ascin "Oct",4
.ascin "Nov",4
.ascin "Dec",4
.byte 0
.endobj kMonthNameShort,globl
.overrun
.previous

25
libc/intrin/kweekdayname.S Normal file
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@ -0,0 +1,25 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/macros.internal.h"
// extern const char kWeekdayName[7][10];
.section .rodata,"a",@progbits
.underrun
kWeekdayName:
.ascin "Sunday",10
.ascin "Monday",10
.ascin "Tuesday",10
.ascin "Wednesday",10
.ascin "Thursday",10
.ascin "Friday",10
.ascin "Saturday",10
.endobj kWeekdayName,globl
.overrun
.previous

31
libc/intrin/kweekdaynameshort.S Normal file
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@ -0,0 +1,31 @@
#if 0
/*─────────────────────────────────────────────────────────────────╗
│ To the extent possible under law, Justine Tunney has waived │
│ all copyright and related or neighboring rights to this file, │
│ as it is written in the following disclaimers: │
│ • http://unlicense.org/ │
│ • http://creativecommons.org/publicdomain/zero/1.0/ │
╚─────────────────────────────────────────────────────────────────*/
#endif
#include "libc/macros.internal.h"
// Type #1:
// - Indexable C-String Array
// - extern const char kWeekdayNameShort[7][4];
// Type #2:
// - Double-NUL Terminated String
// - extern const char kWeekdayNameShort[];
.section .rodata,"a",@progbits
.underrun
kWeekdayNameShort:
.asciz "Sun"
.asciz "Mon"
.asciz "Tue"
.asciz "Wed"
.asciz "Thu"
.asciz "Fri"
.asciz "Sat"
.byte 0
.endobj kWeekdayNameShort,globl
.overrun
.previous

3
libc/intrin/ubsan.c
View file

@ -16,6 +16,7 @@
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/intrin/ubsan.h"
#include "libc/calls/calls.h"
#include "libc/intrin/kprintf.h"
#include "libc/intrin/pushpop.internal.h"
@ -241,6 +242,8 @@ static void __ubsan_warning(const struct UbsanSourceLocation *loc,
const char *description) {
kprintf("%s:%d: %subsan warning: %s is undefined behavior%s\n", loc->file,
loc->line, SUBTLE, description, RESET);
if (__ubsan_strict)
__ubsan_die()();
}
__wur __ubsan_die_f *__ubsan_abort(const struct UbsanSourceLocation *loc,

8
libc/intrin/ubsan.h Normal file
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@ -0,0 +1,8 @@
#ifndef COSMOPOLITAN_LIBC_INTRIN_UBSAN_H_
#define COSMOPOLITAN_LIBC_INTRIN_UBSAN_H_
COSMOPOLITAN_C_START_
extern bool32 __ubsan_strict;
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_INTRIN_UBSAN_H_ */

23
libc/intrin/ubsanconf.c Normal file
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@ -0,0 +1,23 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
/**
* If set to true, UBSAN warnings will become fatal.
*/
bool32 __ubsan_strict = false;