Add fixes performance and static web server

2020-10-05 23:11:49 -07:00
parent b6793d42d5
commit c45e46f871
108 changed files with 2927 additions and 819 deletions
--- a/libc/alg/memmem.c
+++ b/libc/alg/memmem.c
@ -71,27 +71,25 @@ static size_t KnuthMorrisPratt(m, T, W, n, S)
 * @param needlelen is its character count
 * @return pointer to first result or NULL if not found
 */
-void *(memmem)(const void *haystack_, size_t haystacklen, const void *needle_,
+void *(memmem)(const void *haystackp, size_t haystacklen, const void *needlep,
               size_t needlelen) {
+  long *T;
+  size_t i;
  const char *haystack, *needle, *h;
-  haystack = haystack_;
-  needle = needle_;
+  needle = needlep;
+  haystack = haystackp;
  if (needlelen > haystacklen) return NULL;
-  if (!needlelen) return (/*unconst*/ void *)haystack;
+  if (!needlelen) return haystack;
  h = memchr(haystack, *needle, haystacklen);
-  if (!h || needlelen == 1) return (/*unconst*/ void *)h;
+  if (!h || needlelen == 1) return h;
  haystacklen -= h - haystack;
-  long stacktmp[16];
-  void *freeme = NULL;
-  long *T = (needlelen + 1 < ARRAYLEN(stacktmp))
-                ? &stacktmp[0]
-                : (freeme = malloc((needlelen + 1) * sizeof(long)));
-  KnuthMorrisPrattInit(needlelen, T, needle);
-  size_t i = KnuthMorrisPratt(needlelen, T, needle, haystacklen, h);
-  free(freeme);
-  if (i < haystacklen) {
-    return (/*unconst*/ char *)h + i * sizeof(char);
+  if (needlelen < haystacklen && memcmp(h, needle, needlelen) == 0) {
+    return h;
  } else {
-    return NULL;
+    T = malloc((needlelen + 1) * sizeof(long));
+    KnuthMorrisPrattInit(needlelen, T, needle);
+    i = KnuthMorrisPratt(needlelen, T, needle, haystacklen, h);
+    free(T);
+    return i < haystacklen ? h + i * sizeof(char) : NULL;
  }
 }
--- a/libc/calls/atfork.c
+++ b/libc/calls/atfork.c
@ -17,10 +17,7 @@
 │ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
 │ 02110-1301 USA                                                               │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/bits/bits.h"
-#include "libc/calls/internal.h"
 #include "libc/macros.h"
-#include "libc/runtime/internal.h"
 #include "libc/runtime/runtime.h"
 #include "libc/sysv/errfuns.h"

--- a/libc/calls/clock_gettime.c
+++ b/libc/calls/clock_gettime.c
@ -77,7 +77,7 @@ int clock_gettime(int clockid, struct timespec *out_ts) {
  } else {
    struct NtFileTime ft;
    GetSystemTimeAsFileTime(&ft);
-    *out_ts = filetimetotimespec(ft);
+    *out_ts = FileTimeToTimeSpec(ft);
    return 0;
  }
 }
--- a/libc/calls/fstat-nt.c
+++ b/libc/calls/fstat-nt.c
@ -49,9 +49,9 @@ textwindows int fstat$nt(int64_t handle, struct stat *st) {
              : (((filetype == kNtFileTypeDisk) ? S_IFBLK : 0) |
                 ((filetype == kNtFileTypeChar) ? S_IFCHR : 0) |
                 ((filetype == kNtFileTypePipe) ? S_IFIFO : 0))));
-    st->st_atim = filetimetotimespec(wst.ftLastAccessFileTime);
-    st->st_mtim = filetimetotimespec(wst.ftLastWriteFileTime);
-    st->st_ctim = filetimetotimespec(wst.ftCreationFileTime);
+    st->st_atim = FileTimeToTimeSpec(wst.ftLastAccessFileTime);
+    st->st_mtim = FileTimeToTimeSpec(wst.ftLastWriteFileTime);
+    st->st_ctim = FileTimeToTimeSpec(wst.ftCreationFileTime);
    st->st_size = (uint64_t)wst.nFileSizeHigh << 32 | wst.nFileSizeLow;
    st->st_blksize = PAGESIZE;
    st->st_dev = wst.dwVolumeSerialNumber;
--- a/libc/calls/getpid.c
+++ b/libc/calls/getpid.c
@ -28,7 +28,6 @@
 static int g_pid;

 static void __updatepid(void) {
-  atfork(__updatepid, NULL);
  g_pid = __getpid();
 }

@ -47,8 +46,9 @@ int __getpid(void) {
 int getpid(void) {
  static bool once;
  if (!once) {
-    once = true;
    __updatepid();
+    atfork(__updatepid, NULL);
+    once = true;
  }
  return g_pid;
 }
--- a/libc/calls/getrusage-nt.c
+++ b/libc/calls/getrusage-nt.c
@ -36,8 +36,8 @@ textwindows int getrusage$nt(int who, struct rusage *usage) {
  if ((who == RUSAGE_SELF ? GetProcessTimes : GetThreadTimes)(
          (who == RUSAGE_SELF ? GetCurrentProcess : GetCurrentThread)(),
          &CreationFileTime, &ExitFileTime, &KernelFileTime, &UserFileTime)) {
-    filetimetotimeval(&usage->ru_utime, UserFileTime);
-    filetimetotimeval(&usage->ru_stime, KernelFileTime);
+    FileTimeToTimeVal(&usage->ru_utime, UserFileTime);
+    FileTimeToTimeVal(&usage->ru_stime, KernelFileTime);
    return 0;
  } else {
    return winerr();
--- a/libc/calls/gettimeofday-nt.c
+++ b/libc/calls/gettimeofday-nt.c
@ -29,7 +29,7 @@
 int gettimeofday$nt(struct timeval *tv, struct timezone *tz) {
  struct NtFileTime ft;
  GetSystemTimeAsFileTime(&ft);
-  filetimetotimeval(tv, ft);
+  FileTimeToTimeVal(tv, ft);
  if (tz) memset(tz, 0, sizeof(*tz));
  return 0;
 }
--- a/libc/calls/open.c
+++ b/libc/calls/open.c
@ -35,7 +35,7 @@
 * @param mode is an octal user/group/other permission signifier, that's
 *     ignored if O_CREAT or O_TMPFILE weren't passed
 * @return number needing close(), or -1 w/ errno
- * @asyncsignalsafe
+ * @note don't call open() from signal handlers
 */
 nodiscard int open(const char *file, int flags, ...) {
  va_list va;
--- a/libc/calls/sigaction.c
+++ b/libc/calls/sigaction.c
@ -155,7 +155,7 @@ int(sigaction)(int sig, const struct sigaction *act, struct sigaction *oldact) {
            ap->sa_restorer = &__restore_rt;
          }
        }
-        if (rva >= 0) {
+        if (rva >= kSigactionMinRva) {
          ap->sa_sigaction = (sigaction_f)__sigenter;
        }
      }
--- a/libc/calls/utimensat-nt.c
+++ b/libc/calls/utimensat-nt.c
@ -63,7 +63,7 @@ textwindows int utimensat$nt(int dirfd, const char *path,
      } else if (ts[i].tv_nsec == UTIME_OMIT) {
        ftp[i] = NULL;
      } else {
-        ft[i] = timespectofiletime(ts[i]);
+        ft[i] = TimeSpecToFileTime(ts[i]);
        ftp[i] = &ft[i];
      }
    }
--- a/libc/calls/wait4-nt.c
+++ b/libc/calls/wait4-nt.c
@ -50,8 +50,8 @@ textwindows int wait4$nt(int pid, int *opt_out_wstatus, int options,
          memset(opt_out_rusage, 0, sizeof(*opt_out_rusage));
          GetProcessTimes(GetCurrentProcess(), &createfiletime, &exitfiletime,
                          &kernelfiletime, &userfiletime);
-          filetimetotimeval(&opt_out_rusage->ru_utime, userfiletime);
-          filetimetotimeval(&opt_out_rusage->ru_stime, kernelfiletime);
+          FileTimeToTimeVal(&opt_out_rusage->ru_utime, userfiletime);
+          FileTimeToTimeVal(&opt_out_rusage->ru_stime, kernelfiletime);
        }
        return pid;
      } else if (options & WNOHANG) {
--- a/libc/conv/conv.h
+++ b/libc/conv/conv.h
@ -15,8 +15,8 @@
 * of the UNIX operation system signalled the end of modernity. Windows
 * timestamps are living proof.
 */
-#define MODERNITYSECONDS 11644473600
-#define HECTONANOSECONDS 10000000
+#define MODERNITYSECONDS 11644473600ull
+#define HECTONANOSECONDS 10000000ull

 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
@ -46,12 +46,13 @@ long strtol(const char *, char **, int)
 │ cosmopolitan § conversion » time                                         ─╬─│┼
 ╚────────────────────────────────────────────────────────────────────────────│*/

-struct timespec filetimetotimespec(struct NtFileTime);
-struct NtFileTime timespectofiletime(struct timespec);
-struct NtFileTime timetofiletime(int64_t) nothrow pureconst;
+int64_t DosDateTimeToUnix(unsigned, unsigned);
+struct timespec FileTimeToTimeSpec(struct NtFileTime);
+struct NtFileTime TimeSpecToFileTime(struct timespec);
+struct NtFileTime TimeToFileTime(int64_t) nothrow pureconst;
 int64_t filetimetotime(struct NtFileTime) nothrow pureconst;
-void filetimetotimeval(struct timeval *, struct NtFileTime) nothrow;
-struct NtFileTime timevaltofiletime(const struct timeval *) nosideeffect;
+void FileTimeToTimeVal(struct timeval *, struct NtFileTime) nothrow;
+struct NtFileTime TimeValToFileTime(const struct timeval *) nosideeffect;
 long convertmicros(const struct timeval *, long) paramsnonnull() nosideeffect;

 /*───────────────────────────────────────────────────────────────────────────│─╗
--- a/libc/conv/conv.mk
+++ b/libc/conv/conv.mk
@ -52,6 +52,7 @@ $(LIBC_CONV_A).pkg:				\
 		$(LIBC_CONV_A_OBJS)		\
 		$(foreach x,$(LIBC_CONV_A_DIRECTDEPS),$($(x)_A).pkg)

+o/$(MODE)/libc/conv/dosdatetimetounix.o		\
 o/$(MODE)/libc/conv/itoa64radix10.greg.o	\
 o/$(MODE)/libc/conv/timetofiletime.o		\
 o/$(MODE)/libc/conv/filetimetotime.o		\
--- a/libc/conv/dosdatetimetounix.c
+++ b/libc/conv/dosdatetimetounix.c
@ -0,0 +1,43 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ This program is free software; you can redistribute it and/or modify         │
+│ it under the terms of the GNU General Public License as published by         │
+│ the Free Software Foundation; version 2 of the License.                      │
+│                                                                              │
+│ This program is distributed in the hope that it will be useful, but          │
+│ WITHOUT ANY WARRANTY; without even the implied warranty of                   │
+│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU             │
+│ General Public License for more details.                                     │
+│                                                                              │
+│ You should have received a copy of the GNU General Public License            │
+│ along with this program; if not, write to the Free Software                  │
+│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
+│ 02110-1301 USA                                                               │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/conv/conv.h"
+#include "libc/macros.h"
+#include "libc/time/time.h"
+
+/**
+ * Converts MS-DOS timestamp to UNIX.
+ *
+ * @note type signature supports dates greater than 2100
+ * @see PKZIP, FAT
+ */
+int64_t DosDateTimeToUnix(unsigned date, unsigned time) {
+  unsigned weekday, year, month, day, hour, minute, second, yday, leap;
+  year = ((date & 0xfffffe00) >> 9) + 1980 - 1900;
+  month = MAX(1, MIN(12, (date & 0x01e0) >> 5));
+  day = (date & 0x001f) ? (date & 0x001f) - 1 : 0;
+  hour = (time & 0x0000f800) >> 11;
+  minute = (time & 0x000007e0) >> 5;
+  second = (time & 0x0000001f) << 1;
+  leap = year % 4 == 0 && (year % 100 || year % 400 == 0);
+  yday = day + kMonthYearDay[leap][month - 1];
+  return second + minute * 60 + hour * 3600 + yday * 86400 +
+         (year - 70) * 31536000ull + ((year - 69) / 4) * 86400ull -
+         ((year - 1) / 100) * 86400ull + ((year + 299) / 400) * 86400ull;
+}
--- a/libc/conv/filetimetotimespec.c
+++ b/libc/conv/filetimetotimespec.c
@ -24,11 +24,11 @@
 /**
 * Converts Windows COBOL timestamp to UNIX epoch in nanoseconds.
 */
-struct timespec filetimetotimespec(struct NtFileTime ft) {
+struct timespec FileTimeToTimeSpec(struct NtFileTime ft) {
  uint64_t x;
  x = ft.dwHighDateTime;
  x <<= 32;
  x |= ft.dwLowDateTime;
-  x -= MODERNITYSECONDS;
-  return (struct timespec){x / HECTONANOSECONDS, x % HECTONANOSECONDS * 100};
+  return (struct timespec){x / HECTONANOSECONDS - MODERNITYSECONDS,
+                           x % HECTONANOSECONDS * 100};
 }
--- a/libc/conv/filetimetotimeval.c
+++ b/libc/conv/filetimetotimeval.c
@ -22,9 +22,11 @@
 #include "libc/conv/conv.h"
 #include "libc/nt/struct/filetime.h"

-void filetimetotimeval(struct timeval *tv, struct NtFileTime ft) {
-  uint64_t t = (uint64_t)ft.dwHighDateTime << 32 | ft.dwLowDateTime;
-  uint64_t x = t - MODERNITYSECONDS * HECTONANOSECONDS;
-  tv->tv_sec = x / HECTONANOSECONDS;
+void FileTimeToTimeVal(struct timeval *tv, struct NtFileTime ft) {
+  uint64_t x;
+  x = ft.dwHighDateTime;
+  x <<= 32;
+  x |= ft.dwLowDateTime;
+  tv->tv_sec = x / HECTONANOSECONDS - MODERNITYSECONDS;
  tv->tv_usec = x % HECTONANOSECONDS / 10;
 }
--- a/libc/conv/kmonthyearday.c
+++ b/libc/conv/kmonthyearday.c
@ -0,0 +1,25 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2020 Justine Alexandra Roberts Tunney                              │
+│                                                                              │
+│ This program is free software; you can redistribute it and/or modify         │
+│ it under the terms of the GNU General Public License as published by         │
+│ the Free Software Foundation; version 2 of the License.                      │
+│                                                                              │
+│ This program is distributed in the hope that it will be useful, but          │
+│ WITHOUT ANY WARRANTY; without even the implied warranty of                   │
+│ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU             │
+│ General Public License for more details.                                     │
+│                                                                              │
+│ You should have received a copy of the GNU General Public License            │
+│ along with this program; if not, write to the Free Software                  │
+│ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
+│ 02110-1301 USA                                                               │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/time/time.h"
+
+const unsigned short kMonthYearDay[2][12] = {
+    {0, 31, 59, 90, 120, 151, 181, 212, 243, 273, 304, 334},
+    {0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 335},
+};
--- a/libc/conv/timespectofiletime.c
+++ b/libc/conv/timespectofiletime.c
@ -25,7 +25,7 @@
 /**
 * Converts UNIX nanosecond timestamp to Windows COBOL timestamp.
 */
-struct NtFileTime timespectofiletime(struct timespec ts) {
+struct NtFileTime TimeSpecToFileTime(struct timespec ts) {
  uint64_t x;
  x = MODERNITYSECONDS;
  x += ts.tv_sec * HECTONANOSECONDS;
--- a/libc/conv/timetofiletime.c
+++ b/libc/conv/timetofiletime.c
@ -20,7 +20,7 @@
 #include "libc/conv/conv.h"
 #include "libc/nt/struct/filetime.h"

-struct NtFileTime timetofiletime(int64_t t) {
+struct NtFileTime TimeToFileTime(int64_t t) {
  uint64_t t2 = (t + MODERNITYSECONDS) * HECTONANOSECONDS;
  return (struct NtFileTime){(uint32_t)t2, (uint32_t)(t2 >> 32)};
 }
--- a/libc/conv/timevaltofiletime.c
+++ b/libc/conv/timevaltofiletime.c
@ -22,7 +22,7 @@
 #include "libc/nt/struct/filetime.h"
 #include "libc/time/time.h"

-struct NtFileTime timevaltofiletime(const struct timeval *tv) {
+struct NtFileTime TimeValToFileTime(const struct timeval *tv) {
  uint64_t t2 = tv->tv_sec * HECTONANOSECONDS + tv->tv_usec * 10 +
                MODERNITYSECONDS * HECTONANOSECONDS;
  return (struct NtFileTime){(uint32_t)t2, (uint32_t)(t2 >> 32)};
--- a/libc/dos.h
+++ b/libc/dos.h
@ -1,5 +1,6 @@
 #ifndef COSMOPOLITAN_LIBC_DOS_H_
 #define COSMOPOLITAN_LIBC_DOS_H_
+#include "libc/macros.h"

 /**
 * @fileoverview MS-DOS Data Structures.
--- a/libc/fmt/fcvt.c
+++ b/libc/fmt/fcvt.c
@ -0,0 +1,128 @@
+/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
+│vi: set net ft=c ts=2 sts=2 sw=2 fenc=utf-8                                :vi│
+╞══════════════════════════════════════════════════════════════════════════════╡
+│ Copyright 2009 Ian Piumarta                                                  │
+│                                                                              │
+│ Permission is hereby granted, free of charge, to any person obtaining a copy │
+│ of this software and associated documentation files (the 'Software'), to     │
+│ deal in the Software without restriction, including without limitation the   │
+│ rights to use, copy, modify, merge, publish, distribute, and/or sell copies  │
+│ of the Software, and to permit persons to whom the Software is furnished to  │
+│ do so, provided that the above copyright notice(s) and this permission       │
+│ notice appear in all copies of the Software.  Inclusion of the above         │
+│ copyright notice(s) and this permission notice in supporting documentation   │
+│ would be appreciated but is not required.                                    │
+│                                                                              │
+│ THE SOFTWARE IS PROVIDED 'AS IS'.  USE ENTIRELY AT YOUR OWN RISK.            │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/assert.h"
+#include "libc/fmt/fmt.h"
+#include "libc/macros.h"
+#include "libc/math.h"
+#include "libc/runtime/runtime.h"
+#include "libc/str/str.h"
+
+asm(".ident\t\"\\n\\n\
+ecvt, fcvt (MIT License)\\n\
+Copyright 2009 Ian Piumarta\"");
+
+/**
+ * @fileoverview Replacements for the functions ecvt() and fcvt()
+ *
+ * These functions were recently deprecated in POSIX. The interface and
+ * behaviour is identical to the functions that they replace and faster.
+ *
+ * For details on the use of these functions, see your ecvt(3) manual
+ * page. If you don't have one handy, there might still be one available
+ * here: http://opengroup.org/onlinepubs/007908799/xsh/ecvt.html
+ *
+ * @see https://www.piumarta.com/software/fcvt/
+ */
+
+static char *Fcvt(double value, int ndigit, int *decpt, int *sign, int fflag) {
+  static char buf[128];
+  double i;
+  uint64_t l, mant;
+  int exp2, exp10, ptr;
+  memcpy(&l, &value, 8);
+  exp2 = (0x7ff & (l >> 52)) - 1023;
+  mant = l & 0x000fffffffffffffULL;
+  if ((*sign = l >> 63)) value = -value;
+  if (exp2 == 0x400) {
+    *decpt = 0;
+    return mant ? "nan" : "inf";
+  }
+  exp10 = (value == 0) ? !fflag : (int)ceil(log10(value));
+  if (exp10 < -307) exp10 = -307; /* otherwise overflow in pow() */
+  value *= pow(10.0, -exp10);
+  if (value) {
+    while (value < 0.1) {
+      value *= 10;
+      --exp10;
+    }
+    while (value >= 1.0) {
+      value /= 10;
+      ++exp10;
+    }
+  }
+  assert(value == 0 || (0.1 <= value && value < 1.0));
+  if (fflag) {
+    if (ndigit + exp10 < 0) {
+      *decpt = -ndigit;
+      return "";
+    }
+    ndigit += exp10;
+  }
+  *decpt = exp10;
+  if (ARRAYLEN(buf) < ndigit + 2) abort();
+  ptr = 1;
+#if 0 /* slow and safe (and dreadfully boring) */
+  while (ptr <= ndigit) {
+    i;
+    value = modf(value * 10, &i);
+    buf[ptr++] = '0' + (int)i;
+  }
+  if (value >= 0.5) {
+    while (--ptr && ++buf[ptr] > '9') {
+      buf[ptr] = '0';
+    }
+  }
+#else /* faster */
+  memcpy(&l, &value, 8);
+  exp2 = (0x7ff & (l >> 52)) - 1023;
+  assert(value == 0 || (-4 <= exp2 && exp2 <= -1));
+  mant = l & 0x000fffffffffffffULL;
+  if (exp2 == -1023) {
+    ++exp2;
+  } else {
+    mant |= 0x0010000000000000ULL;
+  }
+  mant <<= (exp2 + 4); /* 56-bit denormalised signifier */
+  while (ptr <= ndigit) {
+    mant &= 0x00ffffffffffffffULL; /* mod 1.0 */
+    mant = (mant << 1) + (mant << 3);
+    buf[ptr++] = '0' + (mant >> 56);
+  }
+  if (mant & 0x0080000000000000ULL) /* 1/2 << 56 */
+    while (--ptr && ++buf[ptr] > '9') buf[ptr] = '0';
+#endif
+  if (ptr) {
+    buf[ndigit + 1] = 0;
+    return buf + 1;
+  }
+  if (fflag) {
+    ++ndigit;
+    ++*decpt;
+  }
+  buf[0] = '1';
+  buf[ndigit] = 0;
+  return buf;
+}
+
+char *ecvt(double value, int ndigit, int *decpt, int *sign) {
+  return Fcvt(value, ndigit, decpt, sign, 0);
+}
+
+char *fcvt(double value, int ndigit, int *decpt, int *sign) {
+  return Fcvt(value, ndigit, decpt, sign, 1);
+}
--- a/libc/fmt/fmt.h
+++ b/libc/fmt/fmt.h
@ -29,6 +29,8 @@ char *strerror(int) returnsnonnull nothrow nocallback;
 int strerror_r(int, char *, size_t) nothrow nocallback;
 int palandprintf(void *, void *, const char *, va_list) hidden;
 char *itoa(int, char *, int) compatfn;
+char *fcvt(double, int, int *, int *);
+char *ecvt(double, int, int *, int *);

 /*───────────────────────────────────────────────────────────────────────────│─╗
 │ cosmopolitan § string formatting » optimizations                         ─╬─│┼
--- a/libc/fmt/palandftoa.c
+++ b/libc/fmt/palandftoa.c
@ -40,7 +40,7 @@
 * @see xdtoa() for higher precision at the cost of bloat
 * @see palandprintf() which is intended caller
 */
-int ftoa(int out(int, void *), void *arg, long double value, int prec,
+int ftoa(int out(long, void *), void *arg, long double value, int prec,
         unsigned long width, unsigned long flags) {
  long whole, frac;
  long double tmp, diff;
--- a/libc/fmt/palandntoa.c
+++ b/libc/fmt/palandntoa.c
@ -31,7 +31,7 @@

 uintmax_t __udivmodti4(uintmax_t, uintmax_t, uintmax_t *);

-static int ntoaformat(int out(int, void *), void *arg, char *buf, unsigned len,
+static int ntoaformat(int out(long, void *), void *arg, char *buf, unsigned len,
                      bool negative, unsigned log2base, unsigned prec,
                      unsigned width, unsigned char flags) {
  unsigned i, idx;
@ -103,7 +103,7 @@ static int ntoaformat(int out(int, void *), void *arg, char *buf, unsigned len,
  return 0;
 }

-int ntoa2(int out(int, void *), void *arg, uintmax_t value, bool neg,
+int ntoa2(int out(long, void *), void *arg, uintmax_t value, bool neg,
          unsigned log2base, unsigned prec, unsigned width, unsigned flags,
          const char *alphabet) {
  uintmax_t remainder;
@ -135,7 +135,7 @@ int ntoa2(int out(int, void *), void *arg, uintmax_t value, bool neg,
  return ntoaformat(out, arg, buf, len, neg, log2base, prec, width, flags);
 }

-int ntoa(int out(int, void *), void *arg, va_list va, unsigned char signbit,
+int ntoa(int out(long, void *), void *arg, va_list va, unsigned char signbit,
         unsigned long log2base, unsigned long prec, unsigned long width,
         unsigned char flags, const char *lang) {
  bool neg;
--- a/libc/fmt/palandprintf.c
+++ b/libc/fmt/palandprintf.c
@ -75,7 +75,7 @@ static int ppatoi(const char **str) {
 *   - `%Lf`  long double
 *   - `%p`   pointer (48-bit hexadecimal)
 *
- * Length Modifiers
+ * Size Modifiers
 *
 *   - `%hhd` char (8-bit)
 *   - `%hd`  short (16-bit)
@ -89,7 +89,11 @@ static int ppatoi(const char **str) {
 *   - `%08d` fixed columns w/ zero leftpadding
 *   - `%8d`  fixed columns w/ space leftpadding
 *   - `%*s`  variable column string (thompson-pike)
- *   - `%.*s` variable column data (ignore nul terminator)
+ *
+ * Precision Modifiers
+ *
+ *   - `%.8s` supplied character length (ignore nul terminator)
+ *   - `%.*s` supplied character length argument (ignore nul terminator)
 *
 * Formatting Modifiers
 *
@ -112,9 +116,9 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
  long double ldbl;
  wchar_t charbuf[3];
  const char *alphabet;
-  int (*out)(int, void *);
+  int (*out)(long, void *);
  unsigned char signbit, log2base;
-  int w, rc, flags, width, lasterr, precision;
+  int w, flags, width, lasterr, precision;

  lasterr = errno;
  out = fn ? fn : (int (*)(int, void *))missingno;
@ -255,7 +259,8 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
      case 'u': {
        flags &= ~FLAGS_HASH; /* no hash for dec format */
      DoNumber:
-        if (weaken(ntoa)(out, arg, va, signbit, log2base, precision, width,
+        if (!weaken(ntoa) ||
+            weaken(ntoa)(out, arg, va, signbit, log2base, precision, width,
                         flags, alphabet) == -1) {
          return -1;
        }
@ -269,7 +274,8 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
        } else {
          ldbl = va_arg(va, double);
        }
-        if (weaken(ftoa)(out, arg, ldbl, precision, width, flags) == -1) {
+        if (!weaken(ftoa) ||
+            weaken(ftoa)(out, arg, ldbl, precision, width, flags) == -1) {
          return -1;
        }
        break;
@ -297,8 +303,10 @@ hidden int palandprintf(void *fn, void *arg, const char *format, va_list va) {
      case 's':
        p = va_arg(va, void *);
      showstr:
-        rc = weaken(stoa)(out, arg, p, flags, precision, width, signbit, qchar);
-        if (rc == -1) return -1;
+        if (!weaken(stoa) || weaken(stoa)(out, arg, p, flags, precision, width,
+                                          signbit, qchar) == -1) {
+          return -1;
+        }
        break;

      case '%':
--- a/libc/fmt/palandprintf.h
+++ b/libc/fmt/palandprintf.h
@ -7,12 +7,12 @@
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_

-int spacepad(int(int, void *), void *, unsigned long) hidden;
-int ftoa(int(int, void *), void *, long double, int, unsigned long,
+int spacepad(int(long, void *), void *, unsigned long) hidden;
+int ftoa(int(long, void *), void *, long double, int, unsigned long,
         unsigned long) hidden;
-int stoa(int(int, void *), void *, void *, unsigned long, unsigned long,
+int stoa(int(long, void *), void *, void *, unsigned long, unsigned long,
         unsigned long, unsigned char, unsigned char) hidden;
-int ntoa(int(int, void *), void *, va_list, unsigned char, unsigned long,
+int ntoa(int(long, void *), void *, va_list, unsigned char, unsigned long,
         unsigned long, unsigned long, unsigned char, const char *) hidden;

 COSMOPOLITAN_C_END_
--- a/libc/fmt/spacepad.c
+++ b/libc/fmt/spacepad.c
@ -19,7 +19,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/fmt/palandprintf.h"

-int spacepad(int out(int, void *), void *arg, unsigned long n) {
+int spacepad(int out(long, void *), void *arg, unsigned long n) {
  int i, rc;
  for (rc = i = 0; i < n; ++i) rc |= out(' ', arg);
  return rc;
--- a/libc/fmt/stoa.c
+++ b/libc/fmt/stoa.c
@ -17,47 +17,54 @@
 │ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
 │ 02110-1301 USA                                                               │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/bits/bits.h"
-#include "libc/bits/safemacros.h"
 #include "libc/bits/weaken.h"
 #include "libc/escape/escape.h"
-#include "libc/fmt/fmt.h"
 #include "libc/fmt/paland.inc"
 #include "libc/fmt/palandprintf.h"
 #include "libc/nexgen32e/tinystrlen.h"
-#include "libc/str/internal.h"
 #include "libc/str/str.h"
-#include "libc/str/tpdecode.h"
-#include "libc/str/tpencode.h"
+#include "libc/str/thompike.h"
+#include "libc/str/tpenc.h"
+#include "libc/str/utf16.h"
 #include "libc/unicode/unicode.h"

-forceinline unsigned long tpiencode(wint_t wc) {
-  char buf[8];
-  memset(buf, 0, sizeof(buf));
-  tpencode(buf, sizeof(buf), wc, false);
-  return read64le(buf);
+typedef int (*emit_f)(int (*)(long, void *), void *, wint_t);
+
+static int StoaEmitByte(int f(long, void *), void *a, wint_t c) {
+  return f(c, a);
 }

-forceinline int emitwc(int out(int, void *), void *arg, unsigned flags,
-                       wint_t wc) {
-  unsigned long pending;
-  if (flags & FLAGS_QUOTE) {
-    if (wc > 127) {
-      pending = tpiencode(wc);
-    } else {
-      pending = cescapec(wc);
-    }
-  } else {
-    pending = tpiencode(wc);
-  }
+static int StoaEmitWordEncodedString(int f(long, void *), void *a, uint64_t w) {
  do {
-    if (out(pending & 0xff, arg) == -1) return -1;
-  } while ((pending >>= 8));
+    if (f(w & 0xff, a) == -1) {
+      return -1;
+    }
+  } while ((w >>= 8));
  return 0;
 }

-forceinline int emitquote(int out(int, void *), void *arg, unsigned flags,
-                          char ch, unsigned char signbit) {
+static int StoaEmitUnicode(int f(long, void *), void *a, wint_t c) {
+  if (0 <= c && c <= 127) {
+    return f(c, a);
+  } else {
+    return StoaEmitWordEncodedString(f, a, tpenc(c));
+  }
+}
+
+static int StoaEmitQuoted(int f(long, void *), void *a, wint_t c) {
+  if (0 <= c && c <= 127) {
+    return StoaEmitWordEncodedString(f, a, cescapec(c));
+  } else {
+    return StoaEmitWordEncodedString(f, a, tpenc(c));
+  }
+}
+
+static int StoaEmitVisualized(int f(long, void *), void *a, wint_t c) {
+  return StoaEmitUnicode(f, a, (*weaken(kCp437))[c]);
+}
+
+static int StoaEmitQuote(int out(long, void *), void *arg, unsigned flags,
+                         char ch, unsigned char signbit) {
  if (flags & FLAGS_REPR) {
    if (signbit == 63) {
      if (out('L', arg) == -1) return -1;
@ -78,13 +85,15 @@ forceinline int emitquote(int out(int, void *), void *arg, unsigned flags,
 *
 * @see palandprintf()
 */
-int stoa(int out(int, void *), void *arg, void *data, unsigned long flags,
+int stoa(int out(long, void *), void *arg, void *data, unsigned long flags,
         unsigned long precision, unsigned long width, unsigned char signbit,
         unsigned char qchar) {
  char *p;
  wint_t wc;
-  unsigned w, c;
-  bool ignorenul;
+  unsigned n;
+  emit_f emit;
+  bool justdobytes;
+  unsigned w, c, pad;

  p = data;
  if (!p) {
@ -93,89 +102,102 @@ int stoa(int out(int, void *), void *arg, void *data, unsigned long flags,
    flags |= FLAGS_NOQUOTE;
    signbit = 0;
  } else {
-    if (emitquote(out, arg, flags, qchar, signbit) == -1) return -1;
+    if (StoaEmitQuote(out, arg, flags, qchar, signbit) == -1) return -1;
  }

-  w = precision ? precision : -1;
+  if (!(flags & FLAGS_PRECISION)) {
+    if (signbit == 63) {
+      precision = tinywcsnlen((const wchar_t *)p, -1);
+    } else if (signbit == 15) {
+      precision = tinystrnlen16((const char16_t *)p, -1);
+    } else {
+      precision = strlen(p);
+    }
+  }
+
+  pad = 0;
  if (width) {
+    w = precision;
    if (signbit == 63) {
      if (weaken(wcsnwidth)) {
-        w = weaken(wcsnwidth)((const wchar_t *)p, w);
-      } else {
-        w = tinywcsnlen((const wchar_t *)p, w);
+        w = weaken(wcsnwidth)((const wchar_t *)p, precision);
      }
    } else if (signbit == 15) {
      if (weaken(strnwidth16)) {
-        w = weaken(strnwidth16)((const char16_t *)p, w);
-      } else {
-        w = tinystrnlen16((const char16_t *)p, w);
+        w = weaken(strnwidth16)((const char16_t *)p, precision);
      }
    } else if (weaken(strnwidth)) {
-      w = weaken(strnwidth)(p, w);
-    } else {
-      w = strnlen(p, w);
+      w = weaken(strnwidth)(p, precision);
+    }
+    if (w < width) {
+      pad = width - w;
    }
  }

-  if (flags & FLAGS_PRECISION) {
-    w = MIN(w, precision);
+  if (pad && !(flags & FLAGS_LEFT)) {
+    if (spacepad(out, arg, pad) == -1) return -1;
  }

-  if (w < width && !(flags & FLAGS_LEFT)) {
-    if (spacepad(out, arg, width - w) == -1) return -1;
+  justdobytes = false;
+  if (signbit == 15 || signbit == 63) {
+    if (flags & FLAGS_QUOTE) {
+      emit = StoaEmitQuoted;
+    } else {
+      emit = StoaEmitUnicode;
+    }
+  } else if ((flags & FLAGS_HASH) && weaken(kCp437)) {
+    justdobytes = true;
+    emit = StoaEmitVisualized;
+  } else if (flags & FLAGS_QUOTE) {
+    emit = StoaEmitQuoted;
+  } else {
+    justdobytes = true;
+    emit = StoaEmitByte;
  }

-  ignorenul = (flags & FLAGS_PRECISION) && (flags & (FLAGS_HASH | FLAGS_QUOTE));
-  for (; !(flags & FLAGS_PRECISION) || precision; --precision) {
-    if (signbit == 15) {
-      if ((wc = *(const char16_t *)p) || ignorenul) {
-        if ((1 <= wc && wc <= 0xD7FF)) {
+  if (justdobytes) {
+    while (precision--) {
+      wc = *p++ & 0xff;
+      if (emit(out, arg, wc) == -1) return -1;
+    }
+  } else {
+    while (precision--) {
+      if (signbit == 15) {
+        wc = *(const char16_t *)p;
+        if (IsUcs2(wc)) {
          p += sizeof(char16_t);
-        } else if ((wc & UTF16_MASK) == UTF16_CONT) {
+        } else if (IsUtf16Cont(wc)) {
          p += sizeof(char16_t);
          continue;
+        } else if (!precision) {
+          break;
        } else {
-          char16_t buf[4] = {wc};
-          if (!(flags & FLAGS_PRECISION) || precision > 1) {
-            buf[1] = ((const char16_t *)p)[1];
+          --precision;
+          wc = MergeUtf16(wc, *(const char16_t *)p);
+        }
+      } else if (signbit == 63) {
+        wc = *(const wint_t *)p;
+        p += sizeof(wint_t);
+        if (!wc) break;
+      } else {
+        wc = *p++ & 0xff;
+        if (!isascii(wc)) {
+          if (ThomPikeCont(wc)) continue;
+          n = ThomPikeLen(wc) - 1;
+          wc = ThomPikeByte(wc);
+          if (n > precision) break;
+          precision -= n;
+          while (n--) {
+            wc = ThomPikeMerge(wc, *p++);
          }
-          p += max(1, getutf16((const char16_t *)p, &wc)) * sizeof(char16_t);
        }
-      } else {
-        break;
-      }
-    } else if (signbit == 63) {
-      wc = *(const wint_t *)p;
-      p += sizeof(wint_t);
-      if (!wc) break;
-    } else if (flags & FLAGS_HASH) {
-      c = *p & 0xff;
-      if (!c && !ignorenul) break;
-      wc = (*weaken(kCp437))[c];
-      p++;
-    } else {
-      if ((wc = *p & 0xff) || ignorenul) {
-        if (1 <= wc && wc <= 0x7f) {
-          ++p;
-        } else if (iscont(wc & 0xff)) {
-          ++p;
-          continue;
-        } else {
-          char buf[8];
-          memset(buf, 0, sizeof(buf));
-          memcpy(buf, p,
-                 !(flags & FLAGS_PRECISION) ? 7 : MIN(7, precision - 1));
-          p += max(1, tpdecode(p, &wc));
-        }
-      } else {
-        break;
      }
+      if (emit(out, arg, wc) == -1) return -1;
    }
-    if (emitwc(out, arg, flags, wc) == -1) return -1;
  }

-  if (w <= width && (flags & FLAGS_LEFT)) {
-    if (spacepad(out, arg, width - w) == -1) return -1;
+  if (pad && (flags & FLAGS_LEFT)) {
+    if (spacepad(out, arg, pad) == -1) return -1;
  }

  if (!(flags & FLAGS_NOQUOTE) && (flags & FLAGS_REPR)) {
--- a/libc/fmt/vsnprintf.c
+++ b/libc/fmt/vsnprintf.c
@ -25,17 +25,13 @@

 struct SprintfStr {
  char *p;
-  size_t i, n;
+  size_t i;
+  size_t n;
 };

 static int vsnprintfputchar(unsigned char c, struct SprintfStr *str) {
-  if (str->i < str->n) {
-    if (str->p) str->p[str->i] = c;
-    str->i++;
-  } else {
-    if (!IsTrustworthy() && str->i >= INT_MAX) abort();
-    str->i++;
-  }
+  if (str->i < str->n) str->p[str->i] = c;
+  str->i++;
  return 0;
 }

@ -48,15 +44,11 @@ static int vsnprintfputchar(unsigned char c, struct SprintfStr *str) {
 * @return number of bytes written, excluding the NUL terminator; or,
 *     if the output buffer wasn't passed, or was too short, then the
 *     number of characters that *would* have been written is returned
- * @throw EOVERFLOW when a formatted field exceeds its limit, which can
- *     be checked by setting errno to 0 before calling
 * @see palandprintf() and printf() for detailed documentation
 */
 int(vsnprintf)(char *buf, size_t size, const char *fmt, va_list va) {
  struct SprintfStr str = {buf, 0, size};
  palandprintf(vsnprintfputchar, &str, fmt, va);
-  if (str.p && str.n) {
-    str.p[min(str.i, str.n - 1)] = '\0';
-  }
+  if (str.n) str.p[min(str.i, str.n - 1)] = '\0';
  return str.i;
 }
--- a/libc/integral/normalize.inc
+++ b/libc/integral/normalize.inc
@ -66,7 +66,7 @@
 #endif

 #define BIGPAGESIZE 0x200000
-#define STACKSIZE   0x80000 /* todo: zlib's fault? */
+#define STACKSIZE   0x10000
 #define FRAMESIZE   0x10000 /* 8086 */
 #define PAGESIZE    0x1000  /* i386+ */
 #define BUFSIZ      0x1000  /* best stdio default */
--- a/libc/linux/linux.mk
+++ b/libc/linux/linux.mk
@ -3,7 +3,7 @@

 PKGS += LIBC_LINUX

-LIBC_LINUX_HDRS = $(filter %.h,$(LIBC_FILES))
+LIBC_LINUX_HDRS = $(filter %.h,$(LIBC_LINUX_FILES))
 LIBC_LINUX_FILES := $(wildcard libc/linux/*)
 LIBC_LINUX_CHECKS = $(LIBC_LINUX_HDRS:%=o/$(MODE)/%.ok)

--- a/libc/log/asan.c
+++ b/libc/log/asan.c
@ -41,6 +41,8 @@
 #include "libc/sysv/consts/prot.h"
 #include "third_party/dlmalloc/dlmalloc.h"

+STATIC_YOINK("_init_asan");
+
 /**
 * @fileoverview Cosmopolitan Address Sanitizer Runtime.
 *
--- a/libc/log/checkfail.c
+++ b/libc/log/checkfail.c
@ -31,6 +31,10 @@
 #include "libc/str/str.h"
 #include "libc/sysv/consts/auxv.h"

+STATIC_YOINK("ntoa");
+STATIC_YOINK("stoa");
+STATIC_YOINK("ftoa");
+
 /**
 * Handles failure of CHECK_xx() macros.
 */
@ -47,30 +51,30 @@ relegated void __check_fail(const char *suffix, const char *opstr,
  if (!memccpy(sufbuf, suffix, '\0', sizeof(sufbuf))) strcpy(sufbuf, "?");
  strtoupper(sufbuf);

-  fprintf(stderr,
-          "check failed\n"
-          "\tCHECK_%s(%s, %s);\n"
-          "\t\t → %#lx (%s)\n"
-          "\t\t%s %#lx (%s)\n",
-          sufbuf, wantstr, gotstr, want, wantstr, opstr, got, gotstr);
+  (fprintf)(stderr,
+            "check failed\n"
+            "\tCHECK_%s(%s, %s);\n"
+            "\t\t → %#lx (%s)\n"
+            "\t\t%s %#lx (%s)\n",
+            sufbuf, wantstr, gotstr, want, wantstr, opstr, got, gotstr);

  if (!isempty(fmt)) {
    fputc('\t', stderr);
    va_start(va, fmt);
-    vfprintf(stderr, fmt, va);
+    (vfprintf)(stderr, fmt, va);
    va_end(va);
    fputc('\n', stderr);
  }

-  fprintf(stderr, "\t%s\n\t%s%s%s%s\n", strerror(lasterr), SUBTLE,
-          getauxval(AT_EXECFN), g_argc > 1 ? " \\" : "", RESET);
+  (fprintf)(stderr, "\t%s\n\t%s%s%s%s\n", strerror(lasterr), SUBTLE,
+            getauxval(AT_EXECFN), g_argc > 1 ? " \\" : "", RESET);

  for (i = 1; i < g_argc; ++i) {
-    fprintf(stderr, "\t\t%s%s\n", g_argv[i], i < g_argc - 1 ? " \\" : "");
+    (fprintf)(stderr, "\t\t%s%s\n", g_argv[i], i < g_argc - 1 ? " \\" : "");
  }

  if (!IsTiny() && lasterr == ENOMEM) {
-    fprintf(stderr, "\n");
+    (fprintf)(stderr, "\n");
    fflush(stderr);
    PrintMemoryIntervals(fileno(stderr), &_mmi);
  }
--- a/libc/log/log.h
+++ b/libc/log/log.h
@ -15,7 +15,7 @@
 * Log level for compile-time DCE.
 */
 #ifndef LOGGABLELEVEL
-#ifndef NDEBUG
+#ifndef TINY
 #define LOGGABLELEVEL kLogDebug
 /* #elif IsTiny() */
 /* #define LOGGABLELEVEL kLogInfo */
--- a/libc/log/log.mk
+++ b/libc/log/log.mk
@ -65,6 +65,11 @@ $(LIBC_LOG_A_OBJS):					\
 			$(NO_MAGIC)			\
 			-fwrapv

+ifeq (,$(MODE))
+LIBC_LOG_ASAN = o/$(MODE)/libc/log/asan.o
+endif
+LIBC_LOG_ASAN_A = o/$(MODE)/libc/log/log.a
+
 LIBC_LOG_LIBS = $(foreach x,$(LIBC_LOG_ARTIFACTS),$($(x)))
 LIBC_LOG_SRCS = $(foreach x,$(LIBC_LOG_ARTIFACTS),$($(x)_SRCS))
 LIBC_LOG_HDRS = $(foreach x,$(LIBC_LOG_ARTIFACTS),$($(x)_HDRS))
--- a/libc/log/vflogf.c
+++ b/libc/log/vflogf.c
@ -37,6 +37,10 @@

 #define kNontrivialSize (8 * 1000 * 1000)

+STATIC_YOINK("ntoa");
+STATIC_YOINK("stoa");
+STATIC_YOINK("ftoa");
+
 static int loglevel2char(unsigned level) {
  switch (level) {
    case kLogInfo:
@ -47,6 +51,8 @@ static int loglevel2char(unsigned level) {
      return 'W';
    case kLogFatal:
      return 'F';
+    case kLogVerbose:
+      return 'V';
    default:
      return '?';
  }
@ -80,8 +86,7 @@ void(vflogf)(unsigned level, const char *file, int line, FILE *f,
  long double t2;
  const char *prog;
  int64_t secs, nsec, dots;
-  char zonebuf[8], *zonebufp;
-  char timebuf[24], *timebufp;
+  char timebuf[32], *timebufp;
  if (!f) f = g_logfile;
  if (fileno(f) == -1) return;
  t2 = nowl();
@ -89,22 +94,19 @@ void(vflogf)(unsigned level, const char *file, int line, FILE *f,
  nsec = rem1000000000int64(t2 * 1e9L);
  if (secs > ts.tv_sec) {
    localtime_r(&secs, &tm);
-    strftime(timebuf, sizeof(timebuf), "%Y%m%dT%H%M%S", &tm);
-    strftime(zonebuf, sizeof(zonebuf), "%Z", &tm);
+    strftime(timebuf, sizeof(timebuf), "%Y-%m-%dT%H:%M:%S.", &tm);
    timebufp = timebuf;
-    zonebufp = zonebuf;
    dots = nsec;
  } else {
-    timebufp = "---------------";
-    zonebufp = "---";
+    timebufp = "--------------------";
    dots = nsec - ts.tv_nsec;
  }
  ts.tv_sec = secs;
  ts.tv_nsec = nsec;
  prog = basename(program_invocation_name);
-  if (fprintf(f, "%c%s%s%06ld:%s:%d:%.*s:%d] ", loglevel2char(level), timebufp,
-              zonebufp, rem1000000int64(div1000int64(dots)), file, line,
-              strchrnul(prog, '.') - prog, prog, getpid()) <= 0) {
+  if ((fprintf)(f, "%c%s%06ld:%s:%d:%.*s:%d] ", loglevel2char(level), timebufp,
+                rem1000000int64(div1000int64(dots)), file, line,
+                strchrnul(prog, '.') - prog, prog, getpid()) <= 0) {
    vflogf_onfail(f);
  }
  (vfprintf)(f, fmt, va);
@ -112,7 +114,7 @@ void(vflogf)(unsigned level, const char *file, int line, FILE *f,
  fputc('\n', f);
  if (level == kLogFatal) {
    startfatal(file, line);
-    fprintf(stderr, "fatal error see logfile\n");
+    (fprintf)(stderr, "fatal error see logfile\n");
    die();
    unreachable;
  }
--- a/libc/nt/winsock.h
+++ b/libc/nt/winsock.h
@ -1,6 +1,8 @@
 #ifndef COSMOPOLITAN_LIBC_NT_WINSOCK_H_
 #define COSMOPOLITAN_LIBC_NT_WINSOCK_H_
 #include "libc/nt/struct/overlapped.h"
+#include "libc/nt/struct/pollfd.h"
+#include "libc/sock/sock.h"
 #if !(__ASSEMBLER__ + __LINKER__ + 0)
 COSMOPOLITAN_C_START_
 #if 0
@ -55,10 +57,6 @@ COSMOPOLITAN_C_START_
 #define kNtTfUseSystemThread  0x10
 #define kNtTfUseKernelApc     0x20

-struct sockaddr;
-struct sockaddr_in;
-struct pollfd$nt;
-
 enum NtWsaEComparator { COMP_EQUAL, COMP_NOTLESS };

 enum NtWsaCompletionType {
--- a/libc/runtime/executive.S
+++ b/libc/runtime/executive.S
@ -53,8 +53,7 @@ _executive:
 	call	_setstack
 	mov	%eax,%edi
 	call	exit
-9:	.endfn	_executive,weak,hidden
-
+	.endfn	_executive,weak,hidden
 	ud2

 #ifdef __PG__
--- a/libc/runtime/getstack.c
+++ b/libc/runtime/getstack.c
@ -28,9 +28,9 @@
 */
 void *_getstack(void) {
  char *p;
-  p = mmap((char *)0x700000000000 - STACKSIZE, STACKSIZE,
-           PROT_READ | PROT_WRITE, MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1,
-           0);
+  p = mmap((char *)0x700000000000 /* IMAGE_BASE_VIRTUAL */ - STACKSIZE,
+           STACKSIZE, PROT_READ | PROT_WRITE,
+           MAP_FIXED | MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);
  if (p == MAP_FAILED) abort();
  return p + STACKSIZE;
 }
--- a/libc/runtime/isheap.c
+++ b/libc/runtime/isheap.c
@ -28,8 +28,11 @@
 */
 bool isheap(void *p) {
  int x, i;
+#if 1
  register intptr_t rsp asm("rsp");
  if ((intptr_t)p >= rsp) return false;
+#endif
+  if ((intptr_t)p <= (intptr_t)_end) return false;
  x = (intptr_t)p >> 16;
  i = FindMemoryInterval(&_mmi, x);
  return i < _mmi.i && x >= _mmi.p[i].x && x <= _mmi.p[i].y;
--- a/libc/sock/inet_ntop.c
+++ b/libc/sock/inet_ntop.c
@ -17,11 +17,9 @@
 │ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA                │
 │ 02110-1301 USA                                                               │
 ╚─────────────────────────────────────────────────────────────────────────────*/
-#include "libc/fmt/fmt.h"
-#include "libc/sock/internal.h"
-#include "libc/sock/sock.h"
-#include "libc/sysv/errfuns.h"
+#include "libc/conv/itoa.h"
 #include "libc/sysv/consts/af.h"
+#include "libc/sysv/errfuns.h"

 /**
 * Formats internet address to string.
@ -33,11 +31,21 @@
 * @return dst on success or NULL w/ errno
 */
 const char *inet_ntop(int af, const void *src, char *dst, uint32_t size) {
+  char *p;
+  unsigned char *ip4;
  if (src) {
    if (af == AF_INET) {
-      unsigned char *p = (unsigned char *)src;
-      if (snprintf(dst, size, "%hhu.%hhu.%hhu.%hhu", p[0], p[1], p[2], p[3]) <
-          size) {
+      if (size >= 16) {
+        p = dst;
+        ip4 = src;
+        p += uint64toarray_radix10(ip4[0], p);
+        *p++ = '.';
+        p += uint64toarray_radix10(ip4[1], p);
+        *p++ = '.';
+        p += uint64toarray_radix10(ip4[2], p);
+        *p++ = '.';
+        p += uint64toarray_radix10(ip4[3], p);
+        *p = '\0';
        return dst;
      } else {
        enospc();
--- a/libc/stdio/fwritebuf.c
+++ b/libc/stdio/fwritebuf.c
@ -37,6 +37,7 @@ int fwritebuf(FILE *f) {
  unsigned bytes;
  bytes = (f->beg < f->end ? f->end : f->size) - f->beg;
  if ((put = write(f->fd, &f->buf[f->beg], bytes)) == -1) {
+    if (errno == EINTR) return 0;
    return (int)fseterrno(f);
  }
  f->beg = (unsigned)((f->beg + put) & (f->size - 1));
--- a/libc/str/getutf16.ncabi.c
+++ b/libc/str/getutf16.ncabi.c
@ -19,6 +19,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/errno.h"
 #include "libc/str/str.h"
+#include "libc/str/utf16.h"

 /**
 * Decodes UTF-16 character.
@ -30,16 +31,15 @@
 */
 forcealignargpointer unsigned(getutf16)(const char16_t *p, wint_t *wc) {
  unsigned skip = 0;
-  while ((p[skip] & UTF16_MASK) == UTF16_CONT) skip++;
-  if ((p[skip] & UTF16_MASK) != UTF16_MOAR) {
+  while (IsUtf16Cont(p[skip])) skip++;
+  if (IsUcs2(p[skip])) {
    *wc = p[skip];
    return skip + 1;
-  } else if ((p[skip + 1] & UTF16_MASK) != UTF16_CONT) {
+  } else if (IsUtf16Cont(p[skip + 1])) {
    *wc = INVALID_CODEPOINT;
    return -1;
  } else {
-    *wc = 0x10000 + ((((unsigned)p[skip + 0] - 0xd800) << 10) +
-                     ((unsigned)p[skip + 1] - 0xdc00));
+    *wc = MergeUtf16(p[skip], p[skip + 1]);
    return skip + 2;
  }
 }
--- a/libc/str/str.h
+++ b/libc/str/str.h
@ -64,10 +64,6 @@ void *isnotplaintext(const void *, size_t) nothrow nocallback nosideeffect;

 #define INVALID_CODEPOINT 0xfffd

-#define UTF16_MASK 0b1111110000000000
-#define UTF16_MOAR 0b1101100000000000 /* 0xD800..0xDBFF */
-#define UTF16_CONT 0b1101110000000000 /* 0xDC00..0xDBFF */
-
 unsigned getutf16(const char16_t *, wint_t *);
 int pututf16(char16_t *, size_t, wint_t, bool);
 int iswalnum(wint_t);
--- a/libc/str/strclen16.c
+++ b/libc/str/strclen16.c
@ -18,11 +18,14 @@
 │ 02110-1301 USA                                                               │
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/str/str.h"
+#include "libc/str/utf16.h"

 /**
 * Returns number of characters in UTF-16 or UCS-2 string.
 */
-size_t strclen16(const char16_t *s) { return strnclen16(s, -1ull); }
+size_t strclen16(const char16_t *s) {
+  return strnclen16(s, -1ull);
+}

 noinline size_t strnclen16(const char16_t *p, size_t n) {
  size_t l = 0;
--- a/libc/str/thompike.h
+++ b/libc/str/thompike.h
@ -2,9 +2,10 @@
 #define COSMOPOLITAN_LIBC_STR_THOMPIKE_H_
 #include "libc/nexgen32e/bsr.h"

-#define ThomPikeCont(x) ((x & 0b11000000) == 0b10000000)
-#define ThomPikeByte(x) (x & (((1 << ThomPikeMsb(x)) - 1) | 3))
-#define ThomPikeLen(x)  (7 - ThomPikeMsb(x))
-#define ThomPikeMsb(x)  (x < 252 ? bsr(~x & 0xff) : 1)
+#define ThomPikeCont(x)     (((x)&0b11000000) == 0b10000000)
+#define ThomPikeByte(x)     ((x) & (((1 << ThomPikeMsb(x)) - 1) | 3))
+#define ThomPikeLen(x)      (7 - ThomPikeMsb(x))
+#define ThomPikeMsb(x)      ((x) < 252 ? bsr(~(x)&0xff) : 1)
+#define ThomPikeMerge(x, y) ((x) << 6 | (y)&0b00111111)

 #endif /* COSMOPOLITAN_LIBC_STR_THOMPIKE_H_ */
--- a/libc/str/utf16.h
+++ b/libc/str/utf16.h
@ -0,0 +1,12 @@
+#ifndef COSMOPOLITAN_LIBC_STR_UTF16_H_
+#define COSMOPOLITAN_LIBC_STR_UTF16_H_
+
+#define UTF16_MASK 0xfc00
+#define UTF16_MOAR 0xd800 /* 0xD800..0xDBFF */
+#define UTF16_CONT 0xdc00 /* 0xDC00..0xDBFF */
+
+#define IsUcs2(wc)         (((wc)&UTF16_MASK) != UTF16_MOAR)
+#define IsUtf16Cont(wc)    (((wc)&UTF16_MASK) != UTF16_MOAR)
+#define MergeUtf16(lo, hi) ((((lo)-0xD800) << 10) + ((hi)-0xDC00) + 0x10000)
+
+#endif /* COSMOPOLITAN_LIBC_STR_UTF16_H_ */
--- a/libc/time/localtime.c
+++ b/libc/time/localtime.c
@ -1421,11 +1421,11 @@ offtime(timep, offset)
 ** where, to make the math easy, the answer for year zero is defined as zero.
 */

-pureconst static int
+pureconst optimizespeed static int
 leaps_thru_end_of(y)
 	register const int	y;
 {
-	return (y >= 0) ? (y / 4 - div100int64(y) + y / 400) :
+	return (y >= 0) ? (y / 4 - y / 100 + y / 400) :
 		-(leaps_thru_end_of(-(y + 1)) + 1);
 }

@ -1605,15 +1605,19 @@ timesub(timep, offset, sp, tmp)
 ** Simplified normalize logic courtesy Paul Eggert.
 */

-static int
+static inline int
 increment_overflow(number, delta)
 	int *	number;
 	int	delta;
 {
+#ifdef __GNUC__
+	return __builtin_add_overflow(*number, delta, number);
+#else
 	int	number0;
 	number0 = *number;
 	*number += delta;
 	return (*number < number0) != (delta < 0);
+#endif
 }

 static int
--- a/libc/time/time.h
+++ b/libc/time/time.h
@ -12,6 +12,7 @@ extern const char kWeekdayNameShort[7][4];
 extern const char kWeekdayName[7][10];
 extern const char kMonthNameShort[12][4];
 extern const char kMonthName[12][10];
+extern const unsigned short kMonthYearDay[2][12];

 extern char *tzname[2];
 extern long CLOCKS_PER_SEC;
--- a/libc/time/times.c
+++ b/libc/time/times.c
@ -47,9 +47,9 @@ static noinline long times2(struct tms *out_times, struct rusage *ru) {
                         &KernelTime, &UserTime)) {
      return winerr();
    }
-    filetimetotimeval(&tv, UserTime);
+    FileTimeToTimeVal(&tv, UserTime);
    out_times->tms_utime = convertmicros(&tv, tick);
-    filetimetotimeval(&tv, KernelTime);
+    FileTimeToTimeVal(&tv, KernelTime);
    out_times->tms_stime = convertmicros(&tv, tick);
    out_times->tms_cutime = 0;
    out_times->tms_cstime = 0;
--- a/libc/zip.h
+++ b/libc/zip.h
@ -57,6 +57,7 @@
 #define kZipCfileOffsetLastmodifieddate   14
 #define kZipCfileOffsetCrc32              16
 #define kZipCfileOffsetCompressedsize     20
+#define kZipCfileOffsetUncompressedsize   24
 #define kZipCfileOffsetExternalattributes 38
 #define kZipCfileOffsetOffset             42

@ -71,10 +72,10 @@

 #define kZipGflagUtf8 0x800

-#define kZipExtraHdrSize       4
-#define kZipExtraZip64         0x0001
-#define kZipExtraNtfs          0x000a
-#define kZipExtraNtfsFiletimes 0x0001
+#define kZipExtraHdrSize           4
+#define kZipExtraZip64             0x0001
+#define kZipExtraNtfs              0x000a
+#define kZipExtraExtendedTimestamp 0x5455

 #define kZipCfileMagic "PK\001\002"

@ -105,9 +106,10 @@
  READ16LE((P) + kZipCfileOffsetLastmodifiedtime) /* @see DOS_TIME() */
 #define ZIP_CFILE_LASTMODIFIEDDATE(P) \
  READ16LE((P) + kZipCfileOffsetLastmodifieddate) /* @see DOS_DATE() */
-#define ZIP_CFILE_CRC32(P)              READ32LE((P) + kZipCfileOffsetCrc32)
-#define ZIP_CFILE_COMPRESSEDSIZE(P)     READ32LE(P + kZipCfileOffsetCompressedsize)
-#define ZIP_CFILE_UNCOMPRESSEDSIZE(P)   READ32LE((P) + 24)
+#define ZIP_CFILE_CRC32(P)          READ32LE((P) + kZipCfileOffsetCrc32)
+#define ZIP_CFILE_COMPRESSEDSIZE(P) READ32LE(P + kZipCfileOffsetCompressedsize)
+#define ZIP_CFILE_UNCOMPRESSEDSIZE(P) \
+  READ32LE((P) + kZipCfileOffsetUncompressedsize)
 #define ZIP_CFILE_NAMESIZE(P)           READ16LE((P) + 28)
 #define ZIP_CFILE_EXTRASIZE(P)          READ16LE((P) + 30)
 #define ZIP_CFILE_COMMENTSIZE(P)        READ16LE((P) + 32)
@ -124,7 +126,7 @@
  (ZIP_CFILE_NAMESIZE(P) + ZIP_CFILE_EXTRASIZE(P) + ZIP_CFILE_COMMENTSIZE(P) + \
   kZipCfileHdrMinSize)

-/* central directory file header */
+/* local file header */
 #define ZIP_LFILE_MAGIC(P)       READ32LE(P)
 #define ZIP_LFILE_VERSIONNEED(P) ((P)[4])
 #define ZIP_LFILE_OSNEED(P)      ((P)[5])
--- a/libc/zipos/close.c
+++ b/libc/zipos/close.c
@ -29,7 +29,7 @@
 */
 int __zipos_close(struct ZiposHandle *h) {
  if (h) {
-    munmap(h->map, h->mapsize);
+    free(h->map);
    free(h);
  }
  return 0;
--- a/libc/zipos/find.c
+++ b/libc/zipos/find.c
@ -27,16 +27,14 @@

 ssize_t __zipos_find(struct Zipos *zipos, const struct ZiposUri *name) {
  size_t i, cf;
-  if ((zipos = __zipos_get())) {
-    assert(ZIP_CDIR_MAGIC(zipos->cdir) == kZipCdirHdrMagic);
-    for (i = 0, cf = ZIP_CDIR_OFFSET(zipos->cdir);
-         i < ZIP_CDIR_RECORDS(zipos->cdir);
-         ++i, cf += ZIP_CFILE_HDRSIZE(zipos->map + cf)) {
-      assert(ZIP_CFILE_MAGIC(zipos->map + cf) == kZipCfileHdrMagic);
-      if (name->len == ZIP_CFILE_NAMESIZE(zipos->map + cf) &&
-          memcmp(name->path, ZIP_CFILE_NAME(zipos->map + cf), name->len) == 0) {
-        return cf;
-      }
+  assert(ZIP_CDIR_MAGIC(zipos->cdir) == kZipCdirHdrMagic);
+  for (i = 0, cf = ZIP_CDIR_OFFSET(zipos->cdir);
+       i < ZIP_CDIR_RECORDS(zipos->cdir);
+       ++i, cf += ZIP_CFILE_HDRSIZE(zipos->map + cf)) {
+    assert(ZIP_CFILE_MAGIC(zipos->map + cf) == kZipCfileHdrMagic);
+    if (name->len == ZIP_CFILE_NAMESIZE(zipos->map + cf) &&
+        memcmp(name->path, ZIP_CFILE_NAME(zipos->map + cf), name->len) == 0) {
+      return cf;
    }
  }
  return -1;
--- a/libc/zipos/open.c
+++ b/libc/zipos/open.c
@ -99,9 +99,9 @@ static int __zipos_load(struct Zipos *zipos, size_t cf, unsigned flags,
  if ((h->size = ZIP_LFILE_UNCOMPRESSEDSIZE(zipos->map + lf))) {
    if (ZIP_LFILE_COMPRESSIONMETHOD(zipos->map + lf)) {
      assert(ZIP_LFILE_COMPRESSEDSIZE(zipos->map + lf));
-      h->mapsize = ROUNDUP(h->size + FRAMESIZE, FRAMESIZE);
-      if ((h->map = mapanon(h->mapsize)) != MAP_FAILED) {
-        h->mem = h->map + FRAMESIZE / 2;
+      h->mapsize = h->size;
+      if ((h->map = malloc(h->mapsize)) != MAP_FAILED) {
+        h->mem = h->map;
        if ((IsTiny() ? __zipos_inflate_tiny : __zipos_inflate_fast)(
                h, ZIP_LFILE_CONTENT(zipos->map + lf),
                ZIP_LFILE_COMPRESSEDSIZE(zipos->map + lf)) == -1) {
@ -132,7 +132,7 @@ static int __zipos_load(struct Zipos *zipos, size_t cf, unsigned flags,
 * Loads compressed file from αcτµαlly pδrταblε εxεcµταblε object store.
 *
 * @param uri is obtained via __zipos_parseuri()
- * @asyncsignalsafe
+ * @note don't call open() from signal handlers
 */
 int __zipos_open(const struct ZiposUri *name, unsigned flags, int mode) {
  int fd;
@ -140,7 +140,6 @@ int __zipos_open(const struct ZiposUri *name, unsigned flags, int mode) {
  sigset_t oldmask;
  struct Zipos *zipos;
  assert((flags & O_ACCMODE) == O_RDONLY);
-  sigprocmask(SIG_BLOCK, &kSigsetFull, &oldmask);
  if ((zipos = __zipos_get())) {
    if ((cf = __zipos_find(zipos, name)) != -1) {
      fd = __zipos_load(zipos, cf, flags, mode);
@ -150,6 +149,5 @@ int __zipos_open(const struct ZiposUri *name, unsigned flags, int mode) {
  } else {
    fd = enoexec();
  }
-  sigprocmask(SIG_SETMASK, &oldmask, NULL);
  return fd;
 }