Make improvements

- Fix unused local variable errors
- Remove yoinks from sigaction() header
- Add nox87 and aarch64 to github actions
- Fix cosmocc -fportcosmo in linking mode
- It's now possible to build `make m=llvm o/llvm/libc`

third_party/awk/main.c

@@ -36,6 +36,7 @@
 #include "libc/str/str.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
+#include "libc/sysv/consts/sig.h"
 #include "third_party/awk/awk.h"
 // clang-format off
 

third_party/compiler_rt/udivti3.c

@@ -1,14 +0,0 @@
-#if 0
-/*─────────────────────────────────────────────────────────────────╗
-│ To the extent possible under law, Justine Tunney has waived      │
-│ all copyright and related or neighboring rights to division,     │
-│ as it is written in the following disclaimers:                   │
-│   • http://unlicense.org/                                        │
-│   • http://creativecommons.org/publicdomain/zero/1.0/            │
-╚─────────────────────────────────────────────────────────────────*/
-#endif
-#include "third_party/compiler_rt/int_lib.h"
-
-COMPILER_RT_ABI tu_int __udivti3(tu_int a, tu_int b) {
-  return __udivmodti4(a, b, NULL);
-}

third_party/lua/lrepl.c

@@ -40,6 +40,7 @@
 #include "libc/stdio/stdio.h"
 #include "libc/str/str.h"
 #include "libc/sysv/consts/sa.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/thread/thread.h"
 #include "third_party/linenoise/linenoise.h"
 #include "third_party/lua/cosmo.h"

third_party/make/commands.c

@@ -22,6 +22,7 @@ this program.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "third_party/make/variable.h"
 /**/
 #include "libc/runtime/runtime.h"
+#include "libc/sysv/consts/sig.h"
 #include "third_party/make/commands.h"
 /* clang-format off */
 

third_party/make/job.c

@@ -57,6 +57,7 @@ this program.  If not, see <http://www.gnu.org/licenses/>.  */
 #include "libc/sysv/consts/pr.h"
 #include "libc/sysv/consts/prot.h"
 #include "libc/sysv/consts/rlimit.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/errfuns.h"
 #include "libc/time/time.h"
 #include "libc/x/x.h"

third_party/musl/strfmon.c

@@ -41,7 +41,7 @@ static ssize_t vstrfmon_l(char *s, size_t n, locale_t loc, const char *fmt, va_l
 {
 	size_t l;
 	double x;
-	int fill, nogrp, negpar, nosym, left, intl;
+	int left;
 	int lp, rp, w, fw;
 	char *s0=s;
 	for (; n && *fmt; ) {
@@ -54,25 +54,17 @@ static ssize_t vstrfmon_l(char *s, size_t n, locale_t loc, const char *fmt, va_l
 		fmt++;
 		if (*fmt == '%') goto literal;
 
-		fill = ' ';
-		nogrp = 0;
-		negpar = 0;
-		nosym = 0;
 		left = 0;
 		for (; ; fmt++) {
 			switch (*fmt) {
 			case '=':
-				fill = *++fmt;
 				continue;
 			case '^':
-				nogrp = 1;
 				continue;
 			case '(':
-				negpar = 1;
 			case '+':
 				continue;
 			case '!':
-				nosym = 1;
 				continue;
 			case '-':
 				left = 1;
@@ -90,8 +82,6 @@ static ssize_t vstrfmon_l(char *s, size_t n, locale_t loc, const char *fmt, va_l
 		if (*fmt=='.') for (rp=0, fmt++; isdigit(*fmt); fmt++)
 			rp = 10*rp + (*fmt-'0');
 
-		intl = *fmt++ == 'i';
-
 		w = lp + 1 + rp;
 		if (!left && fw>w) w = fw;
 

third_party/python/Modules/cjkcodecs/__big5_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __big5_decmap_ptr;

third_party/python/Modules/cjkcodecs/__cp932ext_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __cp932ext_decmap_ptr;

third_party/python/Modules/cjkcodecs/__cp949_encmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __cp949_encmap_ptr;

third_party/python/Modules/cjkcodecs/__cp949ext_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __cp949ext_decmap_ptr;

third_party/python/Modules/cjkcodecs/__cp950ext_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __cp950ext_decmap_ptr;

third_party/python/Modules/cjkcodecs/__gb18030ext_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __gb18030ext_decmap_ptr;

third_party/python/Modules/cjkcodecs/__gb18030ext_encmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __gb18030ext_encmap_ptr;

third_party/python/Modules/cjkcodecs/__gb2312_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __gb2312_decmap_ptr;

third_party/python/Modules/cjkcodecs/__gbcommon_encmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __gbcommon_encmap_ptr;

third_party/python/Modules/cjkcodecs/__gbkext_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __gbkext_decmap_ptr;

third_party/python/Modules/cjkcodecs/__jisx0208_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __jisx0208_decmap_ptr;

third_party/python/Modules/cjkcodecs/__jisx0212_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __jisx0212_decmap_ptr;

third_party/python/Modules/cjkcodecs/__jisx0213_1_bmp_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __jisx0213_1_bmp_decmap_ptr;

third_party/python/Modules/cjkcodecs/__jisx0213_2_bmp_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __jisx0213_2_bmp_decmap_ptr;

third_party/python/Modules/cjkcodecs/__jisx0213_pair_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __jisx0213_pair_decmap_ptr;

third_party/python/Modules/cjkcodecs/__ksx1001_decmap.c

@@ -1,4 +1,5 @@
 #include "libc/x/x.h"
+#include "third_party/python/Modules/cjkcodecs/xloadzd.h"
 /* clang-format off */
 
 static _Atomic(void *) __ksx1001_decmap_ptr;

third_party/python/Modules/cjkcodecs/xloadzd.c

@@ -0,0 +1,77 @@
+/*-*- 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 2021 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.                                                │
+╚─────────────────────────────────────────────────────────────────────────────*/
+#include "libc/assert.h"
+#include "libc/fmt/leb128.h"
+#include "libc/intrin/atomic.h"
+#include "libc/intrin/kmalloc.h"
+#include "libc/mem/mem.h"
+#include "libc/nexgen32e/crc32.h"
+#include "libc/runtime/internal.h"
+#include "libc/runtime/runtime.h"
+#include "libc/x/x.h"
+#include "third_party/zlib/zlib.h"
+
+/**
+ * Loads δzd encoded data once atomically.
+ *
+ * @param a points to your static pointer holder
+ * @param p is read-only data compressed using raw deflate
+ * @param n is byte length of deflated data
+ * @param m is byte length of inflated data
+ * @param c is number of items in array
+ * @param z is byte length of items
+ * @param s is crc32 checksum
+ * @return pointer to decoded data
+ * @threadsafe
+ */
+void *xloadzd(_Atomic(void *) *a, const void *p, size_t n, size_t m, size_t c,
+              size_t z, uint32_t s) {
+  size_t i;
+  char *q, *b;
+  void *r, *g;
+  int64_t x, y;
+  if ((r = atomic_load_explicit(a, memory_order_acquire))) return r;
+  _unassert(z == 2 || z == 4);
+  if (!(b = q = malloc(m))) return 0;
+  if (__inflate(q, m, p, n)) {
+    free(q);
+    return 0;
+  }
+  if (!(r = kmalloc(c * z))) {
+    free(q);
+    return 0;
+  }
+  for (x = i = 0; i < c; ++i) {
+    b += unzleb64(b, 10, &y);
+    x += y;
+    if (z == 2) {
+      ((uint16_t *)r)[i] = x;
+    } else {
+      ((uint32_t *)r)[i] = x;
+    }
+  }
+  free(q);
+  assert(crc32_z(0, r, c * z) == s);
+  g = 0;
+  if (!atomic_compare_exchange_strong_explicit(a, &g, r, memory_order_relaxed,
+                                               memory_order_relaxed)) {
+    r = g;
+  }
+  return r;
+}

third_party/python/Modules/cjkcodecs/xloadzd.h

@@ -0,0 +1,11 @@
+#ifndef COSMOPOLITAN_THIRD_PARTY_PYTHON_MODULES_CJKCODECS_XLOADZD_H_
+#define COSMOPOLITAN_THIRD_PARTY_PYTHON_MODULES_CJKCODECS_XLOADZD_H_
+#if !(__ASSEMBLER__ + __LINKER__ + 0)
+COSMOPOLITAN_C_START_
+
+void *xloadzd(_Atomic(void *) *, const void *, size_t, size_t, size_t, size_t,
+              uint32_t);
+
+COSMOPOLITAN_C_END_
+#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
+#endif /* COSMOPOLITAN_THIRD_PARTY_PYTHON_MODULES_CJKCODECS_XLOADZD_H_ */

third_party/python/Modules/faulthandler.c

@@ -6,6 +6,7 @@
 ╚─────────────────────────────────────────────────────────────────────────────*/
 #include "libc/calls/calls.h"
 #include "libc/calls/struct/sigaction.h"
+#include "libc/calls/struct/sigaltstack.h"
 #include "libc/errno.h"
 #include "libc/sysv/consts/rlimit.h"
 #include "libc/sysv/consts/sa.h"

third_party/python/python.mk

@@ -188,6 +188,7 @@ THIRD_PARTY_PYTHON_HDRS =						\
 	third_party/python/Modules/_sqlite/row.h			\
 	third_party/python/Modules/_sqlite/statement.h			\
 	third_party/python/Modules/_sqlite/util.h			\
+	third_party/python/Modules/cjkcodecs/xloadzd.h			\
 	third_party/python/Modules/cjkcodecs/cjkcodecs.h		\
 	third_party/python/Modules/cjkcodecs/multibytecodec.h		\
 	third_party/python/Modules/cjkcodecs/somanyencodings.h		\
@@ -586,6 +587,7 @@ THIRD_PARTY_PYTHON_STAGE2_A_SRCS =					\
 	third_party/python/Modules/atexitmodule.c			\
 	third_party/python/Modules/audioop.c				\
 	third_party/python/Modules/binascii.c				\
+	third_party/python/Modules/cjkcodecs/xloadzd.c			\
 	third_party/python/Modules/cjkcodecs/_codecs_cn.c		\
 	third_party/python/Modules/cjkcodecs/_codecs_hk.c		\
 	third_party/python/Modules/cjkcodecs/_codecs_iso2022.c		\

third_party/quickjs/quickjs-libc.c

@@ -47,6 +47,7 @@
 #include "libc/sysv/consts/clock.h"
 #include "libc/sysv/consts/o.h"
 #include "libc/sysv/consts/s.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/termios.h"
 #include "libc/sysv/consts/w.h"
 #include "libc/time/time.h"

third_party/radpajama/main-redpajama-chat.cc

@@ -41,6 +41,7 @@
 #include "libc/sysv/consts/ok.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/ss.h"
 #include "libc/time/time.h"
 #include "third_party/libcxx/algorithm"

third_party/radpajama/main-redpajama.cc

@@ -41,6 +41,7 @@
 #include "libc/sysv/consts/ok.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/ss.h"
 #include "libc/time/time.h"
 #include "third_party/libcxx/cassert"

third_party/sqlite3/shell.c

@@ -31,6 +31,7 @@
 ** This file contains code to implement the "sqlite" command line
 ** utility for accessing SQLite databases.
 */
+#include "libc/dce.h"
 #if (defined(_WIN32) || defined(WIN32)) && !defined(_CRT_SECURE_NO_WARNINGS)
 /* This needs to come before any includes for MSVC compiler */
 #define _CRT_SECURE_NO_WARNINGS

third_party/zip/zip.c

@@ -56,6 +56,7 @@
 #include "third_party/zip/ttyio.h"
 #include "libc/str/str.h"
 #include "libc/errno.h"
+#include "libc/sysv/consts/sig.h"
 #include "third_party/bzip2/bzlib.h"
 
 #ifdef VMS

third_party/zip/zip.mk

@@ -91,7 +91,8 @@ THIRD_PARTY_ZIP_DIRECTDEPS =			\
 	LIBC_SYSV				\
 	LIBC_TIME				\
 	LIBC_X					\
-	THIRD_PARTY_BZIP2
+	THIRD_PARTY_BZIP2			\
+	THIRD_PARTY_ZLIB
 
 THIRD_PARTY_ZIP_DEPS :=				\
 	$(call uniq,$(foreach x,$(THIRD_PARTY_ZIP_DIRECTDEPS),$($(x))))

third_party/zip/zipnote.c

@@ -26,6 +26,7 @@
 #include "libc/calls/struct/siginfo.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/ss.h"
 
 /* Calculate size of static line buffer used in write (-w) mode. */

third_party/zip/zipsplit.c

@@ -26,6 +26,7 @@
 #include "libc/calls/struct/siginfo.h"
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
+#include "libc/sysv/consts/sig.h"
 #include "libc/sysv/consts/ss.h"
 
 #define DEFSIZ 36000L   /* Default split size (change in help() too) */

third_party/zstd/programs/fileio.c

@@ -85,6 +85,7 @@
 #include "libc/sysv/consts/sa.h"
 #include "libc/sysv/consts/sicode.h"
 #include "libc/sysv/consts/ss.h"
+#include "libc/sysv/consts/sig.h"
 #include "third_party/zstd/programs/timefn.h"     /* UTIL_getTime, UTIL_clockSpanMicro */
 
 #if defined (_MSC_VER)