Make fixes and improvements

- Invent iso8601us() for faster timestamps
- Improve --strace descriptions of sigset_t
- Rebuild the Landlock Make bootstrap binary
- Introduce MODE=sysv for non-Windows builds
- Permit OFD fcntl() locks under pledge(flock)
- redbean can now protect your kernel from ddos
- Have vfork() fallback to sys_fork() not fork()
- Change kmalloc() to not die when out of memory
- Improve documentation for some termios functions
- Rewrite putenv() and friends to conform to POSIX
- Fix linenoise + strace verbosity issue on Windows
- Fix regressions in our ability to show backtraces
- Change redbean SetHeader() to no-op if value is nil
- Improve fcntl() so SQLite locks work in non-WAL mode
- Remove some unnecessary work during fork() on Windows
- Create redbean-based SSL reverse proxy for IPv4 TurfWar
- Fix ape/apeinstall.sh warning when using non-bash shells
- Add ProgramTrustedIp(), and IsTrustedIp() APIs to redbean
- Support $PWD, $UID, $GID, and $EUID in command interpreter
- Introduce experimental JTqFpD APE prefix for non-Windows builds
- Invent blackhole daemon for firewalling IP addresses via UNIX named socket
- Add ProgramTokenBucket(), AcquireToken(), and CountTokens() APIs to redbean

libc/runtime/memtrack.internal.h

@@ -135,39 +135,39 @@ forceinline pureconst bool IsFixedFrame(int x) {
 }
 
 forceinline pureconst bool OverlapsImageSpace(const void *p, size_t n) {
-  const unsigned char *start, *ender;
+  const unsigned char *BegA, *EndA, *BegB, *EndB;
   if (n) {
-    start = p;
-    ender = start + (n - 1);
-    return ((_base <= start && start < _end) ||
-            (_base <= ender && ender < _end) ||
-            (start < _base && _end <= ender));
+    BegA = p;
+    EndA = BegA + (n - 1);
+    BegB = _base;
+    EndB = _end - 1;
+    return MAX(BegA, BegB) < MIN(EndA, EndB);
   } else {
     return 0;
   }
 }
 
 forceinline pureconst bool OverlapsArenaSpace(const void *p, size_t n) {
-  intptr_t x, y;
+  intptr_t BegA, EndA, BegB, EndB;
   if (n) {
-    x = (intptr_t)p;
-    y = x + (n - 1);
-    return ((0x50000000 <= x && x <= 0x7ffdffff) ||
-            (0x50000000 <= y && y <= 0x7ffdffff) ||
-            (x < 0x50000000 && 0x7ffdffff < y));
+    BegA = (intptr_t)p;
+    EndA = BegA + (n - 1);
+    BegB = 0x50000000;
+    EndB = 0x7ffdffff;
+    return MAX(BegA, BegB) < MIN(EndA, EndB);
   } else {
     return 0;
   }
 }
 
 forceinline pureconst bool OverlapsShadowSpace(const void *p, size_t n) {
-  intptr_t x, y;
+  intptr_t BegA, EndA, BegB, EndB;
   if (n) {
-    x = (intptr_t)p;
-    y = x + (n - 1);
-    return ((0x7fff0000 <= x && x <= 0x10007fffffff) ||
-            (0x7fff0000 <= y && y <= 0x10007fffffff) ||
-            (x < 0x7fff0000 && 0x10007fffffff < y));
+    BegA = (intptr_t)p;
+    EndA = BegA + (n - 1);
+    BegB = 0x7fff0000;
+    EndB = 0x10007fffffff;
+    return MAX(BegA, BegB) < MIN(EndA, EndB);
   } else {
     return 0;
   }