8 files changed, 58 insertions, 76 deletions

diff --git a/src/lib/libc/stdlib/exit.3 b/src/lib/libc/stdlib/exit.3
index 22acade86c..ccb416ee82 100644
--- a/src/lib/libc/stdlib/exit.3
+++ b/src/lib/libc/stdlib/exit.3
@@ -29,9 +29,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: exit.3,v 1.18 2024/08/30 03:44:48 guenther Exp $
+.\"     $OpenBSD: exit.3,v 1.19 2025/06/03 14:15:53 yasuoka Exp $
 .\"
-.Dd $Mdocdate: August 30 2024 $
+.Dd $Mdocdate: June 3 2025 $
 .Dt EXIT 3
 .Os
 .Sh NAME
@@ -54,9 +54,7 @@ Call the functions registered with the
 .Xr atexit 3
 function, in the reverse order of their registration.
 .It
-Flush all open output streams.
-.It
-Close all open streams.
+Flush and close all open streams.
 .It
 Unlink all files created with the
 .Xr tmpfile 3
@@ -79,6 +77,7 @@ function never returns.
 .Sh SEE ALSO
 .Xr _exit 2 ,
 .Xr atexit 3 ,
+.Xr fflush 3 ,
 .Xr intro 3 ,
 .Xr sysexits 3 ,
 .Xr tmpfile 3
@@ -86,7 +85,7 @@ function never returns.
 The
 .Fn exit
 function conforms to
-.St -isoC-99 .
+.St -p1003.1-2024 .
 .Sh HISTORY
 An
 .Fn exit
diff --git a/src/lib/libc/stdlib/malloc.3 b/src/lib/libc/stdlib/malloc.3
index bea5575bf8..ee13b01bd4 100644
--- a/src/lib/libc/stdlib/malloc.3
+++ b/src/lib/libc/stdlib/malloc.3
@@ -30,9 +30,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: malloc.3,v 1.142 2024/08/03 20:09:24 guenther Exp $
+.\"     $OpenBSD: malloc.3,v 1.147 2025/06/04 00:38:01 yasuoka Exp $
 .\"
-.Dd $Mdocdate: August 3 2024 $
+.Dd $Mdocdate: June 4 2025 $
 .Dt MALLOC 3
 .Os
 .Sh NAME
@@ -69,7 +69,8 @@
 .Fn malloc_conceal "size_t size"
 .Ft void *
 .Fn calloc_conceal "size_t nmemb" "size_t size"
-.Vt char *malloc_options ;
+.Vt const char * const
+.Va malloc_options ;
 .Sh DESCRIPTION
 The standard functions
 .Fn malloc ,
@@ -268,7 +269,15 @@ next checks the environment for a variable called
 and finally looks at the global variable
 .Va malloc_options
 in the program.
-Each is scanned for the flags documented below.
+Since
+.Fn malloc
+might already get called before the beginning of
+.Fn main ,
+either initialize
+.Va malloc_options
+to a string literal at file scope or do not declare it at all.
+.Pp
+Each of the three strings is scanned for the flags documented below.
 Unless otherwise noted uppercase means on, lowercase means off.
 During initialization, flags occurring later modify the behaviour
 that was requested by flags processed earlier.
@@ -363,18 +372,9 @@ Use with
 to get a verbose dump of malloc's internal state.
 .It Cm X
 .Dq xmalloc .
-Rather than return failure,
+Rather than return failure to handle out-of-memory conditions gracefully,
 .Xr abort 3
 the program with a diagnostic message on stderr.
-It is the intention that this option be set at compile time by
-including in the source:
-.Bd -literal -offset indent
-extern char *malloc_options;
-malloc_options = "X";
-.Ed
-.Pp
-Note that this will cause code that is supposed to handle
-out-of-memory conditions gracefully to abort instead.
 .It Cm <
 .Dq Halve the cache size .
 Decrease the size of the free page cache by a factor of two.
diff --git a/src/lib/libc/stdlib/malloc.c b/src/lib/libc/stdlib/malloc.c
index cad8e5d6a1..f067dd1f37 100644
--- a/src/lib/libc/stdlib/malloc.c
+++ b/src/lib/libc/stdlib/malloc.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: malloc.c,v 1.297 2024/09/20 02:00:46 jsg Exp $        */
+/*      $OpenBSD: malloc.c,v 1.300 2025/10/23 18:49:46 miod Exp $       */
 /*
  * Copyright (c) 2008, 2010, 2011, 2016, 2023 Otto Moerbeek <otto@drijf.net>
  * Copyright (c) 2012 Matthew Dempsky <matthew@openbsd.org>
@@ -31,7 +31,6 @@
 #include <sys/queue.h>
 #include <sys/mman.h>
 #include <sys/sysctl.h>
-#include <uvm/uvmexp.h>
 #include <errno.h>
 #include <stdarg.h>
 #include <stdint.h>
@@ -264,7 +263,8 @@ static union {
                 __attribute__((section(".openbsd.mutable")));
 #define mopts   malloc_readonly.mopts
 
-char            *malloc_options;        /* compile-time options */
+/* compile-time options */
+const char *const malloc_options __attribute__((weak));
 
 static __dead void wrterror(struct dir_info *d, char *msg, ...)
     __attribute__((__format__ (printf, 2, 3)));
@@ -501,7 +501,8 @@ omalloc_parseopt(char opt)
 static void
 omalloc_init(void)
 {
-        char *p, *q, b[16];
+        const char *p;
+        char *q, b[16];
         int i, j;
         const int mib[2] = { CTL_VM, VM_MALLOC_CONF };
         size_t sb;
@@ -1090,24 +1091,6 @@ err:
         return NULL;
 }
 
-#if defined(__GNUC__) && __GNUC__ < 4
-static inline unsigned int
-lb(u_int x)
-{
-#if defined(__m88k__)
-        __asm__ __volatile__ ("ff1 %0, %0" : "=r" (x) : "0" (x));
-        return x;
-#else
-        /* portable version */
-        unsigned int count = 0;
-        while ((x & (1U << (sizeof(int) * CHAR_BIT - 1))) == 0) {
-                count++;
-                x <<= 1;
-        }
-        return (sizeof(int) * CHAR_BIT - 1) - count;
-#endif
-}
-#else
 /* using built-in function version */
 static inline unsigned int
 lb(u_int x)
@@ -1115,7 +1098,6 @@ lb(u_int x)
         /* I need an extension just for integer-length (: */
         return (sizeof(int) * CHAR_BIT - 1) - __builtin_clz(x);
 }
-#endif
 
 /* https://pvk.ca/Blog/2015/06/27/linear-log-bucketing-fast-versatile-simple/
    via Tony Finch */
diff --git a/src/lib/libc/stdlib/mkstemp.c b/src/lib/libc/stdlib/mkstemp.c
index 75a9d27d1a..760575005f 100644
--- a/src/lib/libc/stdlib/mkstemp.c
+++ b/src/lib/libc/stdlib/mkstemp.c
@@ -1,4 +1,4 @@
-/*      $OpenBSD: mkstemp.c,v 1.1 2024/01/19 19:45:02 millert Exp $ */
+/*      $OpenBSD: mkstemp.c,v 1.2 2025/08/04 04:59:31 guenther Exp $ */
 /*
  * Copyright (c) 2024 Todd C. Miller
  *
@@ -20,7 +20,8 @@
 #include <fcntl.h>
 #include <stdlib.h>
 
-#define MKOSTEMP_FLAGS  (O_APPEND | O_CLOEXEC | O_DSYNC | O_RSYNC | O_SYNC)
+#define MKOSTEMP_FLAGS \
+        (O_APPEND | O_CLOEXEC | O_CLOFORK | O_DSYNC | O_RSYNC | O_SYNC)
 
 static int
 mkstemp_cb(const char *path, int flags)
diff --git a/src/lib/libc/stdlib/mktemp.3 b/src/lib/libc/stdlib/mktemp.3
index 83b7c9eb30..a967358164 100644
--- a/src/lib/libc/stdlib/mktemp.3
+++ b/src/lib/libc/stdlib/mktemp.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: mktemp.3,v 1.2 2024/03/01 21:30:40 millert Exp $
+.\"     $OpenBSD: mktemp.3,v 1.4 2025/08/04 14:11:37 schwarze Exp $
 .\"
 .\" Copyright (c) 1989, 1991, 1993
 .\"     The Regents of the University of California.  All rights reserved.
@@ -27,17 +27,17 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: March 1 2024 $
+.Dd $Mdocdate: August 4 2025 $
 .Dt MKTEMP 3
 .Os
 .Sh NAME
 .Nm mktemp ,
 .Nm mkstemp ,
-.Nm mkostemp ,
 .Nm mkstemps ,
-.Nm mkostemps ,
 .Nm mkdtemp ,
-.Nm mkdtemps
+.Nm mkdtemps ,
+.Nm mkostemp ,
+.Nm mkostemps
 .Nd make temporary file name (unique)
 .Sh SYNOPSIS
 .In stdlib.h
@@ -119,6 +119,8 @@ system call:
 Append on each write.
 .It Dv O_CLOEXEC
 Set the close-on-exec flag on the new file descriptor.
+.It Dv O_CLOFORK
+Set the close-on-fork flag on the new file descriptor.
 .It Dv O_SYNC
 Perform synchronous I/O operations.
 .El
@@ -163,8 +165,8 @@ functions return a pointer to the template on success and
 on failure.
 The
 .Fn mkstemp ,
-.Fn mkostemp ,
 .Fn mkstemps ,
+.Fn mkostemp ,
 and
 .Fn mkostemps
 functions return \-1 if no suitable file could be created.
@@ -253,9 +255,9 @@ of
 The
 .Fn mktemp ,
 .Fn mkstemp ,
-.Fn mkostemp ,
+.Fn mkdtemp ,
 and
-.Fn mkdtemp
+.Fn mkostemp
 functions may set
 .Va errno
 to one of the following values:
@@ -318,8 +320,8 @@ function.
 .Pp
 The
 .Fn mkstemp ,
-.Fn mkostemp ,
 .Fn mkstemps ,
+.Fn mkostemp ,
 and
 .Fn mkostemps
 functions may also set
@@ -345,18 +347,16 @@ function.
 .Xr tmpnam 3
 .Sh STANDARDS
 The
-.Fn mkdtemp
+.Fn mkstemp ,
+.Fn mkdtemp ,
 and
-.Fn mkstemp
+.Fn mkostemp
 functions conform to the
-.St -p1003.1-2008
+.St -p1003.1-2024
 specification.
 The ability to specify more than six
 .Em X Ns s
 is an extension to that standard.
-The
-.Fn mkostemp
-function is expected to conform to a future revision of that standard.
 .Pp
 The
 .Fn mktemp
@@ -368,9 +368,9 @@ it is no longer a part of the standard.
 .Pp
 The
 .Fn mkstemps ,
-.Fn mkostemps ,
+.Fn mkdtemps ,
 and
-.Fn mkdtemps
+.Fn mkostemps
 functions are non-standard and should not be used if portability is required.
 .Sh HISTORY
 A
@@ -378,14 +378,14 @@ A
 function appeared in
 .At v7 .
 The
-.Fn mkdtemp
-function appeared in
-.Ox 2.2 .
-The
 .Fn mkstemp
 function appeared in
 .Bx 4.3 .
 The
+.Fn mkdtemp
+function appeared in
+.Ox 2.2 .
+The
 .Fn mkstemps
 function appeared in
 .Ox 2.3 .
diff --git a/src/lib/libc/stdlib/ptsname.3 b/src/lib/libc/stdlib/ptsname.3
index 98705528f5..eea36a5a02 100644
--- a/src/lib/libc/stdlib/ptsname.3
+++ b/src/lib/libc/stdlib/ptsname.3
@@ -1,4 +1,4 @@
-.\"     $OpenBSD: ptsname.3,v 1.2 2012/12/04 18:42:16 millert Exp $
+.\"     $OpenBSD: ptsname.3,v 1.3 2025/06/13 18:34:00 schwarze Exp $
 .\"
 .\" Copyright (c) 2002 The FreeBSD Project, Inc.
 .\" All rights reserved.
@@ -32,7 +32,7 @@
 .\"
 .\" $FreeBSD: head/lib/libc/stdlib/ptsname.3 240412 2012-09-12 17:54:09Z emaste $
 .\"
-.Dd $Mdocdate: December 4 2012 $
+.Dd $Mdocdate: June 13 2025 $
 .Dt PTSNAME 3
 .Os
 .Sh NAME
@@ -44,7 +44,7 @@
 .In stdlib.h
 .Ft int
 .Fn grantpt "int fildes"
-.Ft "char *"
+.Ft char *
 .Fn ptsname "int fildes"
 .Ft int
 .Fn unlockpt "int fildes"
diff --git a/src/lib/libc/stdlib/rand48.3 b/src/lib/libc/stdlib/rand48.3
index fa7a7179bc..02e1999db9 100644
--- a/src/lib/libc/stdlib/rand48.3
+++ b/src/lib/libc/stdlib/rand48.3
@@ -9,9 +9,9 @@
 .\" of any kind. I shall in no event be liable for anything that happens
 .\" to anyone/anything when using this software.
 .\"
-.\"     $OpenBSD: rand48.3,v 1.21 2019/12/20 19:16:40 tb Exp $
+.\"     $OpenBSD: rand48.3,v 1.22 2025/06/13 18:34:00 schwarze Exp $
 .\"
-.Dd $Mdocdate: December 20 2019 $
+.Dd $Mdocdate: June 13 2025 $
 .Dt DRAND48 3
 .Os
 .Sh NAME
@@ -46,9 +46,9 @@
 .Fn srand48 "long seed"
 .Ft void
 .Fn srand48_deterministic "long seed"
-.Ft "unsigned short *"
+.Ft unsigned short *
 .Fn seed48 "unsigned short xseed[3]"
-.Ft "unsigned short *"
+.Ft unsigned short *
 .Fn seed48_deterministic "unsigned short xseed[3]"
 .Ft void
 .Fn lcong48 "unsigned short p[7]"
diff --git a/src/lib/libc/stdlib/realpath.3 b/src/lib/libc/stdlib/realpath.3
index 1dec10fef4..1f932e3bb5 100644
--- a/src/lib/libc/stdlib/realpath.3
+++ b/src/lib/libc/stdlib/realpath.3
@@ -28,9 +28,9 @@
 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 .\" SUCH DAMAGE.
 .\"
-.\"     $OpenBSD: realpath.3,v 1.26 2021/10/13 15:04:53 kn Exp $
+.\"     $OpenBSD: realpath.3,v 1.27 2025/06/13 18:34:00 schwarze Exp $
 .\"
-.Dd $Mdocdate: October 13 2021 $
+.Dd $Mdocdate: June 13 2025 $
 .Dt REALPATH 3
 .Os
 .Sh NAME
@@ -39,7 +39,7 @@
 .Sh SYNOPSIS
 .In limits.h
 .In stdlib.h
-.Ft "char *"
+.Ft char *
 .Fn realpath "const char *pathname" "char *resolved"
 .Sh DESCRIPTION
 The