Hello Michael, in the mmap(2) man page MAP_ANON is described as deprecated. When I look at the NetBSD manpage http://netbsd.gw.com/cgi-bin/man-cgi?mmap+2+NetBSD-current I found that MAP_ANONYMOUS is not defined. https://www.dragonflybsd.org/cgi/web-man?command=mmap§ion=2 indicates MAP_ANONYMOUS is an alias for MAP_ANON and is provided for compatibility. https://man.openbsd.org/mmap.2 also knows MAP_ANONYMOUS as a synonym. https://www.unix.com/man-page/osx/2/mmap/ does not know MAP_ANONYMOUS. So shouldn't the man page indicate that MAP_ANON is to be favored to write portable code? And correspondingly mark MAP_ANONYMOUS as synonym only kept for compatibility. The Open Group Base Specifications Issue 7, 2018 Edition does not reference either of both. So both values are not POSIX but it is not correct to describe them as Linux only. Best regards Heinrich -- To unsubscribe from this list: send the line "unsubscribe linux-man" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
