Implements IRIX sproc(2) and friends.
There may be a problem with stack size overflow in this implementation
This commit is contained in:
manu
parent
c583268d4e
commit
3568060679
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@ -1,7 +1,7 @@
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/* $NetBSD: irix_prctl.c,v 1.4 2001/12/25 19:04:18 manu Exp $ */
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/* $NetBSD: irix_prctl.c,v 1.5 2002/04/28 17:21:58 manu Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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@ -37,13 +37,19 @@
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: irix_prctl.c,v 1.4 2001/12/25 19:04:18 manu Exp $");
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__KERNEL_RCSID(0, "$NetBSD: irix_prctl.c,v 1.5 2002/04/28 17:21:58 manu Exp $");
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#include <sys/errno.h>
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/signal.h>
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#include <sys/systm.h>
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#include <sys/exec.h>
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#include <uvm/uvm_extern.h>
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#include <machine/regnum.h>
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#include <machine/vmparam.h>
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#include <compat/svr4/svr4_types.h>
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@ -52,6 +58,15 @@ __KERNEL_RCSID(0, "$NetBSD: irix_prctl.c,v 1.4 2001/12/25 19:04:18 manu Exp $");
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#include <compat/irix/irix_signal.h>
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#include <compat/irix/irix_syscallargs.h>
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struct irix_sproc_child_args {
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struct proc **isc_proc;
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void *isc_entry;
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void *isc_arg;
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};
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static void irix_sproc_child __P((struct irix_sproc_child_args *));
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static int irix_sproc __P((void *, unsigned int, void *, caddr_t, size_t,
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pid_t, struct proc *, register_t *));
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int
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irix_sys_prctl(p, v, retval)
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struct proc *p;
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@ -85,3 +100,178 @@ irix_sys_prctl(p, v, retval)
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}
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return 0;
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}
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int
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irix_sys_pidsprocsp(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct irix_sys_pidsprocsp_args /* {
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syscallarg(void *) entry;
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syscallarg(unsigned) inh;
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syscallarg(void *) arg;
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syscallarg(caddr_t) sp;
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syscallarg(irix_size_t) len;
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syscallarg(irix_pid_t) pid;
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} */ *uap = v;
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/* pid is ignored for now */
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printf("Warning: unsupported pid argument to IRIX sproc\n");
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return irix_sproc(SCARG(uap, entry), SCARG(uap, inh), SCARG(uap, arg),
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SCARG(uap, sp), SCARG(uap, len), SCARG(uap, pid), p, retval);
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}
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int
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irix_sys_sprocsp(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct irix_sys_sprocsp_args /* {
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syscallarg(void *) entry;
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syscallarg(unsigned) inh;
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syscallarg(void *) arg;
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syscallarg(caddr_t) sp;
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syscallarg(irix_size_t) len;
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} */ *uap = v;
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return irix_sproc(SCARG(uap, entry), SCARG(uap, inh), SCARG(uap, arg),
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SCARG(uap, sp), SCARG(uap, len), 0, p, retval);
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}
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int
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irix_sys_sproc(p, v, retval)
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struct proc *p;
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void *v;
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register_t *retval;
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{
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struct irix_sys_sproc_args /* {
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syscallarg(void *) entry;
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syscallarg(unsigned) inh;
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syscallarg(void *) arg;
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} */ *uap = v;
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return irix_sproc(SCARG(uap, entry), SCARG(uap, inh), SCARG(uap, arg),
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NULL, 0, 0, p, retval);
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}
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static int irix_sproc(entry, inh, arg, sp, len, pid, p, retval)
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void *entry;
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unsigned int inh;
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void *arg;
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caddr_t sp;
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size_t len;
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pid_t pid;
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struct proc *p;
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register_t *retval;
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{
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int bsd_flags = 0;
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struct exec_vmcmd vmc;
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struct frame *tf = (struct frame *)p->p_md.md_regs;
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int error;
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struct proc *p2;
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struct irix_sproc_child_args isc;
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#ifdef DEBUG_IRIX
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printf("irix_sproc(): entry = %p, inh = %d, arg = %p, sp = 0x%08lx, len = 0x%08lx, pid = %d\n", entry, inh, arg, (u_long)sp, (u_long)len, pid);
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#endif
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if (inh & IRIX_PR_SADDR)
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bsd_flags |= FORK_SHAREVM;
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if (inh & IRIX_PR_SFDS)
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bsd_flags |= FORK_SHAREFILES;
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if (inh & IRIX_PR_SDIR)
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bsd_flags |= FORK_SHARECWD;
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if (inh & IRIX_PR_SUMASK)
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printf("Warning: unimplemented IRIX sproc flag PR_SUMASK\n");
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if (inh & IRIX_PR_SULIMIT)
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printf("Warning: unimplemented IRIX sproc flag PR_SULIMIT\n");
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if (inh & IRIX_PR_SID)
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printf("Warning: unimplemented IRIX sproc flag PR_SID\n");
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/*
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* Setting up child stack
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*/
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if (len == 0)
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len = (u_long)p->p_vmspace->vm_minsaddr
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- (u_long)p->p_vmspace->vm_maxsaddr;
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if (sp == NULL)
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sp = (caddr_t)(round_page(tf->f_regs[SP])
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- IRIX_SPROC_STACK_OFFSET - len);
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if (inh & IRIX_PR_SADDR) {
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bzero(&vmc, sizeof(vmc));
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vmc.ev_addr = trunc_page((u_long)sp);
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vmc.ev_len = round_page(len);
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vmc.ev_prot = UVM_PROT_RWX;
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vmc.ev_flags = UVM_FLAG_COPYONW|UVM_FLAG_FIXED|UVM_FLAG_OVERLAY;
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vmc.ev_proc = vmcmd_map_zero;
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#ifdef DEBUG_IRIX
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printf("irix_sproc(): new stack addr=0x%08lx, len=0x%08lx\n",
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(u_long)sp, (u_long)len);
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#endif
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if ((error = (*vmc.ev_proc)(p, &vmc)) != 0)
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return error;
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p->p_vmspace->vm_maxsaddr = (void *)trunc_page((u_long)sp);
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}
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/*
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* Arguments for irix_sproc_child()
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*/
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isc.isc_proc = &p2;
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isc.isc_entry = entry;
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isc.isc_arg = arg;
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if ((error = fork1(p, bsd_flags, SIGCHLD, (void *)sp, len,
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(void *)irix_sproc_child, (void *)&isc, retval, &p2)) != 0)
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return error;
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/*
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* Some local variables are referenced in irix_sproc_child()
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* through isc. We need to ensure the child does not use them
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* anymore before leaving.
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*/
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(void)ltsleep((void *)&isc, 0, "sproc", 0, NULL);
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retval[0] = (register_t)p2->p_pid;
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retval[1] = 0;
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return 0;
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}
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static void
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irix_sproc_child(isc)
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struct irix_sproc_child_args *isc;
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{
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struct proc *p2 = *isc->isc_proc;
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struct frame *tf = (struct frame *)p2->p_md.md_regs;
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/*
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* Setup PC to return to the child entry point
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*/
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tf->f_regs[PC] = (unsigned long)isc->isc_entry;
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/*
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* Setup child arguments
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*/
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tf->f_regs[A0] = (unsigned long)isc->isc_arg;
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tf->f_regs[A1] = tf->f_regs[S3]; /* XXX Really useful? */
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/*
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* We do not need isc anymore, we can wakeup our parent
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*/
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wakeup((void *)isc);
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/*
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* Return to userland for a newly created process
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*/
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child_return((void *)p2);
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return;
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}
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@ -1,7 +1,7 @@
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/* $NetBSD: irix_prctl.h,v 1.1 2001/12/02 09:23:59 manu Exp $ */
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/* $NetBSD: irix_prctl.h,v 1.2 2002/04/28 17:21:59 manu Exp $ */
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/*-
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* Copyright (c) 2001 The NetBSD Foundation, Inc.
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* Copyright (c) 2001-2002 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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@ -62,4 +62,17 @@
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#define IRIX_PR_THREAD_CTL 21
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#define IRIX_PR_LASTSHEXIT 22
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#define IRIX_PR_SPROC 0x00000001
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#define IRIX_PR_SFDS 0x00000002
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#define IRIX_PR_SDIR 0x00000004
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#define IRIX_PR_SUMASK 0x00000008
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#define IRIX_PR_SULIMIT 0x00000010
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#define IRIX_PR_SID 0x00000020
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#define IRIX_PR_SADDR 0x00000040
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#define IRIX_PR_THREADS 0x00000080
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#define IRIX_PR_BLOCK 0x01000000
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#define IRIX_PR_NOLIBC 0x02000000
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#define IRIX_PR_EVENT 0x04000000
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#define IRIX_SPROC_STACK_OFFSET 0x04000000
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#endif /* _IRIX_IRIX_PRCTL_H_ */
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@ -1,10 +1,10 @@
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/* $NetBSD: irix_syscall.h,v 1.39 2002/04/23 05:47:38 manu Exp $ */
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/* $NetBSD: irix_syscall.h,v 1.40 2002/04/28 17:21:59 manu Exp $ */
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/*
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* System call numbers.
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*
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* DO NOT EDIT-- this file is automatically generated.
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* created from NetBSD: syscalls.master,v 1.37 2002/04/22 05:58:49 manu Exp
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* created from NetBSD: syscalls.master,v 1.38 2002/04/23 05:47:38 manu Exp
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*/
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/* syscall: "syscall" ret: "int" args: */
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/* syscall: "gettimeofday" ret: "int" args: "struct timeval *" */
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#define IRIX_SYS_gettimeofday 128
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/* syscall: "sproc" ret: "irix_pid_t" args: "void *" "unsigned int" "void *" */
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#define IRIX_SYS_sproc 129
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/* syscall: "prctl" ret: "ptrdiff_t" args: "unsigned int" "void *" */
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#define IRIX_SYS_prctl 130
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/* syscall: "sprocsp" ret: "irix_pid_t" args: "void *" "unsigned int" "void *" "caddr_t" "irix_size_t" */
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#define IRIX_SYS_sprocsp 132
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/* syscall: "mmap" ret: "void *" args: "void *" "irix_size_t" "int" "int" "int" "irix_off_t" */
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#define IRIX_SYS_mmap 134
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/* syscall: "ngetdents64" ret: "int" args: "int" "irix_dirent64_t *" "unsigned short" "int *" */
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#define IRIX_SYS_ngetdents64 208
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/* syscall: "pidsprocsp" ret: "irix_pid_t" args: "void *" "unsigned int" "void *" "caddr_t" "irix_size_t" "irix_pid_t" */
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#define IRIX_SYS_pidsprocsp 210
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#define IRIX_SYS_MAXSYSCALL 236
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#define IRIX_SYS_NSYSENT 236
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/* $NetBSD: irix_syscallargs.h,v 1.39 2002/04/23 05:47:38 manu Exp $ */
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/* $NetBSD: irix_syscallargs.h,v 1.40 2002/04/28 17:21:59 manu Exp $ */
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/*
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* System call argument lists.
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*
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* DO NOT EDIT-- this file is automatically generated.
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* created from NetBSD: syscalls.master,v 1.37 2002/04/22 05:58:49 manu Exp
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* created from NetBSD: syscalls.master,v 1.38 2002/04/23 05:47:38 manu Exp
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*/
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#ifndef _IRIX_SYS__SYSCALLARGS_H_
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@ -82,11 +82,25 @@ struct irix_sys_sigreturn_args {
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syscallarg(int) signo;
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};
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struct irix_sys_sproc_args {
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syscallarg(void *) entry;
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syscallarg(unsigned int) inh;
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syscallarg(void *) arg;
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};
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struct irix_sys_prctl_args {
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syscallarg(unsigned int) option;
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syscallarg(void *) arg1;
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};
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struct irix_sys_sprocsp_args {
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syscallarg(void *) entry;
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syscallarg(unsigned int) inh;
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syscallarg(void *) arg;
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syscallarg(caddr_t) sp;
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syscallarg(irix_size_t) len;
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};
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struct irix_sys_mmap_args {
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syscallarg(void *) addr;
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syscallarg(irix_size_t) len;
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@ -194,6 +208,15 @@ struct irix_sys_ngetdents64_args {
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syscallarg(int *) eof;
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};
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struct irix_sys_pidsprocsp_args {
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syscallarg(void *) entry;
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syscallarg(unsigned int) inh;
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syscallarg(void *) arg;
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syscallarg(caddr_t) sp;
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syscallarg(irix_size_t) len;
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syscallarg(irix_pid_t) pid;
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};
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/*
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* System call prototypes.
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*/
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@ -296,7 +319,9 @@ int sys_getitimer(struct proc *, void *, register_t *);
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int sys_setitimer(struct proc *, void *, register_t *);
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int sys_adjtime(struct proc *, void *, register_t *);
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int svr4_sys_gettimeofday(struct proc *, void *, register_t *);
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int irix_sys_sproc(struct proc *, void *, register_t *);
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int irix_sys_prctl(struct proc *, void *, register_t *);
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int irix_sys_sprocsp(struct proc *, void *, register_t *);
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int irix_sys_mmap(struct proc *, void *, register_t *);
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int sys_munmap(struct proc *, void *, register_t *);
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int sys_mprotect(struct proc *, void *, register_t *);
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@ -330,4 +355,5 @@ int irix_sys_getmountid(struct proc *, void *, register_t *);
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int irix_sys_getdents64(struct proc *, void *, register_t *);
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int irix_sys_ngetdents(struct proc *, void *, register_t *);
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int irix_sys_ngetdents64(struct proc *, void *, register_t *);
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int irix_sys_pidsprocsp(struct proc *, void *, register_t *);
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#endif /* _IRIX_SYS__SYSCALLARGS_H_ */
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/* $NetBSD: irix_syscalls.c,v 1.39 2002/04/23 05:47:38 manu Exp $ */
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/* $NetBSD: irix_syscalls.c,v 1.40 2002/04/28 17:21:59 manu Exp $ */
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/*
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* System call names.
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*
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* DO NOT EDIT-- this file is automatically generated.
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* created from NetBSD: syscalls.master,v 1.37 2002/04/22 05:58:49 manu Exp
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* created from NetBSD: syscalls.master,v 1.38 2002/04/23 05:47:38 manu Exp
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: irix_syscalls.c,v 1.39 2002/04/23 05:47:38 manu Exp $");
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__KERNEL_RCSID(0, "$NetBSD: irix_syscalls.c,v 1.40 2002/04/28 17:21:59 manu Exp $");
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#if defined(_KERNEL_OPT)
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#if defined(_KERNEL_OPT)
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@ -176,10 +176,10 @@ const char *const irix_syscallnames[] = {
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"setitimer", /* 126 = setitimer */
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"adjtime", /* 127 = adjtime */
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"gettimeofday", /* 128 = gettimeofday */
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"#129 (unimplemented sproc)", /* 129 = unimplemented sproc */
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"sproc", /* 129 = sproc */
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"prctl", /* 130 = prctl */
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"#131 (unimplemented procblk)", /* 131 = unimplemented procblk */
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"#132 (unimplemented sprocsp)", /* 132 = unimplemented sprocsp */
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"sprocsp", /* 132 = sprocsp */
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"#133 (unimplemented sgigsc)", /* 133 = unimplemented sgigsc */
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"mmap", /* 134 = mmap */
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"munmap", /* 135 = munmap */
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@ -257,7 +257,7 @@ const char *const irix_syscallnames[] = {
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"ngetdents", /* 207 = ngetdents */
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"ngetdents64", /* 208 = ngetdents64 */
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"#209 (unimplemented sgi_sesmgr)", /* 209 = unimplemented sgi_sesmgr */
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"#210 (unimplemented pidsprocsp)", /* 210 = unimplemented pidsprocsp */
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"pidsprocsp", /* 210 = pidsprocsp */
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"#211 (unimplemented rexec)", /* 211 = unimplemented rexec */
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"#212 (unimplemented timer_create)", /* 212 = unimplemented timer_create */
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"#213 (unimplemented timer_delete)", /* 213 = unimplemented timer_delete */
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@ -1,14 +1,14 @@
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/* $NetBSD: irix_sysent.c,v 1.39 2002/04/23 05:47:38 manu Exp $ */
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/* $NetBSD: irix_sysent.c,v 1.40 2002/04/28 17:21:59 manu Exp $ */
|
||||
|
||||
/*
|
||||
* System call switch table.
|
||||
*
|
||||
* DO NOT EDIT-- this file is automatically generated.
|
||||
* created from NetBSD: syscalls.master,v 1.37 2002/04/22 05:58:49 manu Exp
|
||||
* created from NetBSD: syscalls.master,v 1.38 2002/04/23 05:47:38 manu Exp
|
||||
*/
|
||||
|
||||
#include <sys/cdefs.h>
|
||||
__KERNEL_RCSID(0, "$NetBSD: irix_sysent.c,v 1.39 2002/04/23 05:47:38 manu Exp $");
|
||||
__KERNEL_RCSID(0, "$NetBSD: irix_sysent.c,v 1.40 2002/04/28 17:21:59 manu Exp $");
|
||||
|
||||
#if defined(_KERNEL_OPT)
|
||||
#include "opt_ntp.h"
|
||||
|
|
@ -308,14 +308,14 @@ struct sysent irix_sysent[] = {
|
|||
sys_adjtime }, /* 127 = adjtime */
|
||||
{ 1, s(struct svr4_sys_gettimeofday_args), 0,
|
||||
svr4_sys_gettimeofday }, /* 128 = gettimeofday */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 129 = unimplemented sproc */
|
||||
{ 3, s(struct irix_sys_sproc_args), 0,
|
||||
irix_sys_sproc }, /* 129 = sproc */
|
||||
{ 2, s(struct irix_sys_prctl_args), 0,
|
||||
irix_sys_prctl }, /* 130 = prctl */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 131 = unimplemented procblk */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 132 = unimplemented sprocsp */
|
||||
{ 5, s(struct irix_sys_sprocsp_args), 0,
|
||||
irix_sys_sprocsp }, /* 132 = sprocsp */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 133 = unimplemented sgigsc */
|
||||
{ 6, s(struct irix_sys_mmap_args), 0,
|
||||
|
|
@ -470,8 +470,8 @@ struct sysent irix_sysent[] = {
|
|||
irix_sys_ngetdents64 }, /* 208 = ngetdents64 */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 209 = unimplemented sgi_sesmgr */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 210 = unimplemented pidsprocsp */
|
||||
{ 6, s(struct irix_sys_pidsprocsp_args), 0,
|
||||
irix_sys_pidsprocsp }, /* 210 = pidsprocsp */
|
||||
{ 0, 0, 0,
|
||||
sys_nosys }, /* 211 = unimplemented rexec */
|
||||
{ 0, 0, 0,
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
$NetBSD: syscalls.master,v 1.38 2002/04/23 05:47:38 manu Exp $
|
||||
$NetBSD: syscalls.master,v 1.39 2002/04/28 17:21:59 manu Exp $
|
||||
|
||||
; @(#)syscalls.master 8.1 (Berkeley) 7/19/93
|
||||
|
||||
|
|
@ -244,11 +244,14 @@
|
|||
127 NOARGS { int sys_adjtime(struct timeval *delta, \
|
||||
struct timeval *olddelta); }
|
||||
128 NOARGS { int svr4_sys_gettimeofday(struct timeval *tp); }
|
||||
129 UNIMPL sproc
|
||||
129 STD { irix_pid_t irix_sys_sproc(void *entry, \
|
||||
unsigned int inh, void *arg); }
|
||||
130 STD { ptrdiff_t irix_sys_prctl(unsigned int option, \
|
||||
void *arg1); }
|
||||
131 UNIMPL procblk
|
||||
132 UNIMPL sprocsp
|
||||
132 STD { irix_pid_t irix_sys_sprocsp(void *entry, \
|
||||
unsigned int inh, void *arg, caddr_t sp, \
|
||||
irix_size_t len); }
|
||||
133 UNIMPL sgigsc
|
||||
134 STD { void *irix_sys_mmap(void *addr, irix_size_t len, \
|
||||
int prot, int flags, int fd, irix_off_t pos); }
|
||||
|
|
@ -355,7 +358,9 @@
|
|||
irix_dirent64_t *buf, unsigned short nbyte, \
|
||||
int *eof); }
|
||||
209 UNIMPL sgi_sesmgr
|
||||
210 UNIMPL pidsprocsp
|
||||
210 STD { irix_pid_t irix_sys_pidsprocsp(void *entry, \
|
||||
unsigned int inh, void *arg, caddr_t sp, \
|
||||
irix_size_t len, irix_pid_t pid); }
|
||||
211 UNIMPL rexec
|
||||
212 UNIMPL timer_create
|
||||
213 UNIMPL timer_delete
|
||||
|
|
|
|||
Loading…
Reference in New Issue