From c46767abb634d600dc5cb1ef5922ec3459ae4cf8 Mon Sep 17 00:00:00 2001 From: Ian Moffett Date: Wed, 17 Sep 2025 18:04:28 -0400 Subject: kern/amd64: proc: Add proc_kill() routine Add a new function to kill processes and clean them up. They will then be marked as EXITING and it is up to the parent to do the rest. Signed-off-by: Ian Moffett --- src/sys/arch/amd64/os/os_proc.c | 40 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 40 insertions(+) (limited to 'src/sys/arch/amd64/os/os_proc.c') diff --git a/src/sys/arch/amd64/os/os_proc.c b/src/sys/arch/amd64/os/os_proc.c index 8c7b6f3..1064c10 100644 --- a/src/sys/arch/amd64/os/os_proc.c +++ b/src/sys/arch/amd64/os/os_proc.c @@ -39,6 +39,8 @@ #include #include +extern struct proc g_rootproc; + /* * Put the current process into userland for its first * run. The catch is that we have never been in userland @@ -212,3 +214,41 @@ done: lapic_eoi(); lapic_timer_oneshot_us(SCHED_QUANTUM); } + +/* + * Commit procedural murder + */ +int +md_proc_kill(struct proc *procp, int flags) +{ + struct proc *self; + struct pcore *core = this_core(); + struct md_pcb *pcbp; + + if (core == NULL) { + return -ENXIO; + } + + /* Default to ourself */ + if (procp == NULL) { + procp = core->curproc; + } + + /* Release the VAS */ + pcbp = &procp->pcb; + mmu_free_vas(&pcbp->vas); + + /* Sanity check */ + if ((self = core->curproc) == NULL) { + printf("kill: could not get self, using rootproc\n"); + self = &g_rootproc; + } + + /* If this is us, spin time */ + if (self->pid == procp->pid) { + core->curproc = NULL; + md_proc_yield(); + } + + return 0; +} -- cgit v1.2.3