...alternate signal stack settings. The same is also true for a child process created using clone (2), unless the clone flags include CLONE_VM and do not include CLONE_VFORK , in w…...he child). fork() step Since glibc 2.24, the posix_spawn () function commences by calling clone (2) with CLONE_VM and CLONE_VFORK flags. Older implementations use fork (2), or p…...he child). fork() step Since glibc 2.24, the posix_spawn () function commences by calling clone (2) with CLONE_VM and CLONE_VFORK flags. Older implementations use fork (2), or p…...4.4BSD (first appeared in 4.2BSD). Generally portable to/from non-BSD systems supporting clones of the BSD socket layer (including System V variants). However, note that the Sys…...4.4BSD (first appeared in 4.2BSD). Generally portable to/from non-BSD systems supporting clones of the BSD socket layer (including System V variants). However, note that the Sys…...4.4BSD (first appeared in 4.2BSD). Generally portable to/from non-BSD systems supporting clones of the BSD socket layer (including System V variants). However, note that the Sys…...4.4BSD (first appeared in 4.2BSD). Generally portable to/from non-BSD systems supporting clones of the BSD socket layer (including System V variants). However, note that the Sys…