934634a18c
P_*/L_* naming convention, and rename the in-kernel flags to avoid conflict. (P_ -> PK_, L_ -> LW_ ). Add back the (now unused) LSDEAD constant. Restores source compatibility with pre-newlock2 tools like ps or top. Reviewed by Andrew Doran.
115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
/* nbcompat.c
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* Implementations of some FreeBSD functions on NetBSD to make things
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* a bit smoother.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/kthread.h>
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#include <sys/proc.h>
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#include <sys/wait.h>
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#include <sys/unistd.h>
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#include <sys/types.h>
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#include <sys/errno.h>
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#include <sys/lock.h>
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#include <machine/bus.h>
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#include <machine/stdarg.h>
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#include "nbcompat.h"
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/* note: this is also defined in ntoskrnl_var.h, but I didn't want to include
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* the whole file here
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*/
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#define NDIS_KSTACK_PAGES 8
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struct ndis_resource{
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bus_space_handle_t res_handle;
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bus_space_tag_t res_tag;
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bus_addr_t res_base;
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bus_size_t res_size;
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};
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int
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bus_release_resource(device_t dev, int type, int rid,
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struct ndis_resource *r)
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{
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switch(type) {
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case SYS_RES_IOPORT:
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bus_space_unmap(r->res_tag, r->res_handle, r->res_size);
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break;
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case SYS_RES_MEMORY:
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bus_space_unmap(r->res_tag, r->res_handle, r->res_size);
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break;
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default:
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printf("error: bus_release_resource()");
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}
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return 0;
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}
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void
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mtx_lock(struct mtx *mutex)
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{
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/* I'm not sure if this is needed or not. NetBSD kernel
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* threads aren't preempted, but there still may be a need
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* for lockmgr locks.
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*/
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//lockmgr(mutex, LK_EXCLUSIVE, NULL);
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}
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void
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mtx_unlock(struct mtx *mutex)
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{
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//lockmgr(mutex, LK_RELEASE, NULL);
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}
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int
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device_is_attached(device_t dev)
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{
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/* Sure, it's attached? */
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return TRUE;
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}
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/* I took this from sys/kern/kern_kthread.c (in the NetBSD source tree).
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* The only difference is the kernel stack size
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*/
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/*
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* Fork a kernel thread. Any process can request this to be done.
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* The VM space and limits, etc. will be shared with proc0.
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*/
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int
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ndis_kthread_create(void (*func)(void *), void *arg,
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struct proc **newpp, void *stack, size_t stacksize, const char *fmt, ...)
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{
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struct proc *p2;
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int error;
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va_list ap;
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/* First, create the new process. */
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error = fork1(&lwp0, FORK_SHAREVM | FORK_SHARECWD | FORK_SHAREFILES |
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FORK_SHARESIGS, SIGCHLD, stack, stacksize, func, arg, NULL, &p2);
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if (__predict_false(error != 0))
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return (error);
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/*
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* Mark it as a system process and not a candidate for
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* swapping. Set P_NOCLDWAIT so that children are reparented
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* to init(8) when they exit. init(8) can easily wait them
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* out for us.
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*/
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p2->p_flag |= PK_SYSTEM | PK_NOCLDWAIT;
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LIST_FIRST(&p2->p_lwps)->l_flag |= LW_INMEM;
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/* Name it as specified. */
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va_start(ap, fmt);
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vsnprintf(p2->p_comm, MAXCOMLEN, fmt, ap);
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va_end(ap);
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/* All done! */
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if (newpp != NULL)
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*newpp = p2;
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return (0);
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}
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