Attachment 18554 Details for Bug 33300 – file.diff

[patch] file.diff

file.diff (text/plain), 16.43 KB, created by ak03 on 2001-12-29 16:40:01 UTC

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Creator: ak03

Created: 2001-12-29 16:40:01 UTC

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obsolete

>Index: conf/files.i386
>===================================================================
>RCS file: /home/ncvs/src/sys/conf/files.i386,v
>retrieving revision 1.307.2.19
>diff -u -r1.307.2.19 files.i386
>--- conf/files.i386	19 Dec 2001 20:59:28 -0000	1.307.2.19
>+++ conf/files.i386	29 Dec 2001 15:46:30 -0000
>@@ -352,6 +352,7 @@
> i386/linux/linux_locore.s	optional	compat_linux		   \
> 	dependency 	"linux_assym.h"
> i386/linux/linux_machdep.c	optional	compat_linux
>+i386/linux/linux_ptrace.c	optional	compat_linux
> i386/linux/linux_sysent.c	optional	compat_linux
> i386/linux/linux_sysvec.c	optional	compat_linux
> svr4/imgact_svr4.c		optional	compat_svr4
>Index: kern/sys_process.c
>===================================================================
>RCS file: /home/ncvs/src/sys/kern/sys_process.c,v
>retrieving revision 1.51.2.2
>diff -u -r1.51.2.2 sys_process.c
>--- kern/sys_process.c	3 Oct 2001 06:55:42 -0000	1.51.2.2
>+++ kern/sys_process.c	29 Dec 2001 15:51:23 -0000
>@@ -328,7 +328,7 @@
> 	case PT_STEP:
> 	case PT_CONTINUE:
> 	case PT_DETACH:
>-		if ((uap->req != PT_STEP) && ((unsigned)uap->data >= NSIG))
>+		if ((uap->req != PT_STEP) && ((unsigned)uap->data > _SIG_MAXSIG))
> 			return EINVAL;
> 
> 		PHOLD(p);
>Index: i386/linux/linux_ptrace.c
>===================================================================
>RCS file: i386/linux/linux_ptrace.c
>diff -N i386/linux/linux_ptrace.c
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ i386/linux/linux_ptrace.c	26 Dec 2001 15:57:52 -0000
>@@ -0,0 +1,502 @@
>+/*
>+ * Copyright (c) 2001 Alexander Kabaev
>+ * All rights reserved.
>+ *
>+ * Redistribution and use in source and binary forms, with or without
>+ * modification, are permitted provided that the following conditions
>+ * are met:
>+ * 1. Redistributions of source code must retain the above copyright
>+ *    notice, this list of conditions and the following disclaimer 
>+ *    in this position and unchanged.
>+ * 2. Redistributions in binary form must reproduce the above copyright
>+ *    notice, this list of conditions and the following disclaimer in the
>+ *    documentation and/or other materials provided with the distribution.
>+ * 3. The name of the author may not be used to endorse or promote products
>+ *    derived from this software without specific prior written permission.
>+ *
>+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
>+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
>+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
>+ * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
>+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
>+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
>+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
>+ * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
>+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
>+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
>+ *
>+ * $FreeBSD:$
>+ */
>+
>+#include <sys/param.h>
>+#include <sys/systm.h>
>+#include <sys/lock.h>
>+#include <sys/proc.h>
>+#include <sys/ptrace.h>
>+#include <sys/sysproto.h>
>+
>+#include <machine/md_var.h>
>+#include <machine/npx.h>
>+#include <machine/reg.h>
>+
>+#include <vm/vm.h>
>+#include <vm/pmap.h>
>+#include <vm/vm_map.h>
>+#include <sys/user.h>
>+
>+#include <i386/linux/linux.h>
>+#include <i386/linux/linux_proto.h>
>+#include <compat/linux/linux_util.h>
>+
>+/* 
>+ *   Linux ptrace requests numbers. Mostly identical to FreeBSD,
>+ *   except for MD ones and PT_ATTACH/PT_DETACH.
>+ */
>+#define	PTRACE_TRACEME		0
>+#define	PTRACE_PEEKTEXT		1
>+#define	PTRACE_PEEKDATA		2
>+#define	PTRACE_PEEKUSR		3
>+#define	PTRACE_POKETEXT		4
>+#define	PTRACE_POKEDATA		5
>+#define	PTRACE_POKEUSR		6
>+#define	PTRACE_CONT		7
>+#define	PTRACE_KILL		8
>+#define	PTRACE_SINGLESTEP	9
>+
>+#define PTRACE_ATTACH		16
>+#define PTRACE_DETACH		17
>+
>+#define	PTRACE_SYSCALL		24
>+
>+#define PTRACE_GETREGS		12
>+#define PTRACE_SETREGS		13
>+#define PTRACE_GETFPREGS	14
>+#define PTRACE_SETFPREGS	15
>+#define PTRACE_GETFPXREGS	18
>+#define PTRACE_SETFPXREGS	19
>+
>+#define PTRACE_SETOPTIONS	21
>+
>+/*
>+ * Linux keeps debug registers at the following
>+ * offset in the user struct
>+ */
>+#define LINUX_DBREG_OFFSET	252
>+#define LINUX_DBREG_SIZE	8*sizeof(l_int)
>+
>+static __inline__ int 
>+map_signum(int signum)
>+{
>+#ifndef __alpha__
>+	if (signum > 0 && signum <= LINUX_SIGTBLSZ)
>+		signum = linux_to_bsd_signal[_SIG_IDX(signum)];
>+#endif
>+	return ((signum == SIGSTOP)? 0 : signum);
>+}
>+
>+struct linux_pt_reg {
>+	l_long	ebx;
>+	l_long	ecx;
>+	l_long	edx;
>+	l_long	esi;
>+	l_long	edi;
>+	l_long	ebp;
>+	l_long	eax;
>+	l_int	xds;
>+	l_int	xes;
>+	l_int	xfs;
>+	l_int	xgs;
>+	l_long	orig_eax;
>+	l_long	eip;
>+	l_int	xcs;
>+	l_long	eflags;
>+	l_long	esp;
>+	l_int	xss;
>+};
>+
>+
>+/* 
>+ *   Translate i386 ptrace registers between Linux and FreeBSD formats.
>+ *   The translation is pretty straighforward, for all registers, but
>+ *   orig_eax in Linux side and r_trapno and r_err in FreeBSD
>+ */
>+static int 
>+map_regs_to_linux(struct reg *bsd_r, struct linux_pt_reg *linux_r)
>+{
>+	linux_r->ebx = bsd_r->r_ebx;
>+	linux_r->ecx = bsd_r->r_ecx;
>+	linux_r->edx = bsd_r->r_edx;
>+	linux_r->esi = bsd_r->r_esi;
>+	linux_r->edi = bsd_r->r_edi;
>+	linux_r->ebp = bsd_r->r_ebp;
>+	linux_r->eax = bsd_r->r_eax;
>+	linux_r->xds = bsd_r->r_ds;
>+	linux_r->xes = bsd_r->r_es;
>+	linux_r->xfs = bsd_r->r_fs;
>+	linux_r->xgs = bsd_r->r_gs;
>+	linux_r->orig_eax = bsd_r->r_eax;
>+	linux_r->eip = bsd_r->r_eip;
>+	linux_r->xcs = bsd_r->r_cs;
>+	linux_r->eflags = bsd_r->r_eflags;
>+	linux_r->esp = bsd_r->r_esp;
>+	linux_r->xss = bsd_r->r_ss;
>+	return (0);
>+}
>+
>+static int 
>+map_regs_from_linux(struct reg *bsd_r, struct linux_pt_reg *linux_r)
>+{
>+	bsd_r->r_ebx = linux_r->ebx;
>+	bsd_r->r_ecx = linux_r->ecx;
>+	bsd_r->r_edx = linux_r->edx;
>+	bsd_r->r_esi = linux_r->esi;
>+	bsd_r->r_edi = linux_r->edi;
>+	bsd_r->r_ebp = linux_r->ebp;
>+	bsd_r->r_eax = linux_r->eax;
>+	bsd_r->r_ds  = linux_r->xds;
>+	bsd_r->r_es  = linux_r->xes;
>+	bsd_r->r_fs  = linux_r->xfs;
>+	bsd_r->r_gs  = linux_r->xgs;
>+	bsd_r->r_eip = linux_r->eip;
>+	bsd_r->r_cs  = linux_r->xcs;
>+	bsd_r->r_eflags = linux_r->eflags;
>+	bsd_r->r_esp = linux_r->esp;
>+	bsd_r->r_ss = linux_r->xss;
>+	return (0);
>+}
>+
>+struct linux_pt_fpreg {
>+	l_long cwd;
>+	l_long swd;
>+	l_long twd;
>+	l_long fip;
>+	l_long fcs;
>+	l_long foo;
>+	l_long fos;
>+	l_long st_space[2*10];
>+};
>+
>+static int 
>+map_fpregs_to_linux(struct fpreg *bsd_r, struct linux_pt_fpreg *linux_r)
>+{
>+	linux_r->cwd = bsd_r->fpr_env[0];
>+	linux_r->swd = bsd_r->fpr_env[1];
>+	linux_r->twd = bsd_r->fpr_env[2];
>+	linux_r->fip = bsd_r->fpr_env[3];
>+	linux_r->fcs = bsd_r->fpr_env[4];
>+	linux_r->foo = bsd_r->fpr_env[5];
>+	linux_r->fos = bsd_r->fpr_env[6];
>+	bcopy(bsd_r->fpr_acc, linux_r->st_space, sizeof(linux_r->st_space));
>+	return (0);
>+}
>+
>+static int 
>+map_fpregs_from_linux(struct fpreg *bsd_r, struct linux_pt_fpreg *linux_r)
>+{
>+	bsd_r->fpr_env[0] = linux_r->cwd;
>+	bsd_r->fpr_env[1] = linux_r->swd;
>+	bsd_r->fpr_env[2] = linux_r->twd;
>+	bsd_r->fpr_env[3] = linux_r->fip;
>+	bsd_r->fpr_env[4] = linux_r->fcs;
>+	bsd_r->fpr_env[5] = linux_r->foo;
>+	bsd_r->fpr_env[6] = linux_r->fos;
>+	bcopy(bsd_r->fpr_acc, linux_r->st_space, sizeof(bsd_r->fpr_acc));
>+	return (0);
>+}
>+
>+struct linux_pt_fpxreg {
>+	l_ushort	cwd;
>+	l_ushort	swd;
>+	l_ushort	twd;
>+	l_ushort	fop;
>+	l_long		fip;
>+	l_long		fcs;
>+	l_long		foo;
>+	l_long		fos;
>+	l_long		mxcsr;
>+	l_long		reserved;
>+	l_long		st_space[32];
>+	l_long		xmm_space[32];
>+	l_long		padding[56];
>+};
>+
>+static int 
>+linux_proc_read_fpxregs(struct proc *p, struct linux_pt_fpxreg *fpxregs) 
>+{
>+#ifdef CPU_ENABLE_SSE
>+	if (sizeof(*fpxregs) != sizeof(p->p_addr->u_pcb.pcb_save.sv_xmm)) {
>+		printf("linux: savexmm != linux_pt_fpxreg\n");
>+		return (EIO);
>+	}
>+	if (cpu_fxsr == 0)
>+#endif
>+		return (EIO);
>+	bcopy(&p->p_addr->u_pcb.pcb_save.sv_xmm, fpxregs, sizeof *fpxregs);
>+	return (0);
>+}
>+
>+static int 
>+linux_proc_write_fpxregs(struct proc *p, struct linux_pt_fpxreg *fpxregs)
>+{
>+#ifdef CPU_ENABLE_SSE
>+	if (sizeof(*fpxregs) != sizeof(p->p_addr->u_pcb.pcb_save.sv_xmm)) {
>+		printf("linux: savexmm != linux_pt_fpxreg\n");
>+		return (EIO);
>+	}
>+	if (cpu_fxsr == 0)
>+#endif
>+		return (EIO);
>+	bcopy(fpxregs, &p->p_addr->u_pcb.pcb_save.sv_xmm, sizeof *fpxregs);
>+	return (0);
>+}
>+
>+
>+int
>+linux_ptrace(struct proc *p, struct linux_ptrace_args *uap)
>+{
>+	struct ptrace_args bsd_args;
>+	int	error;
>+	caddr_t	sg;
>+	union {
>+		struct linux_pt_reg	reg;
>+		struct linux_pt_fpreg	fpreg;
>+		struct linux_pt_fpxreg	fpxreg;
>+	} r;
>+
>+	sg = stackgap_init();
>+
>+	error = 0;
>+
>+	/* by default, just copy data intact */
>+	bsd_args.req  = uap->req;
>+	bsd_args.pid  = (pid_t)uap->pid;
>+	bsd_args.addr = (caddr_t)uap->addr;
>+	bsd_args.data = uap->data;
>+
>+	switch (uap->req) {
>+	case PTRACE_TRACEME:
>+	case PTRACE_POKETEXT:
>+	case PTRACE_POKEDATA:
>+	case PTRACE_KILL:
>+		error = ptrace(p, &bsd_args);
>+		break;
>+	case PTRACE_PEEKTEXT:
>+	case PTRACE_PEEKDATA: {
>+		/* need to preserve return value */
>+		int rval = p->p_retval[0];
>+		bsd_args.data = 0;
>+		error = ptrace(p, &bsd_args);
>+		if (error == 0)
>+			error = copyout(p->p_retval,
>+			    (caddr_t)uap->data, sizeof(l_int));
>+		p->p_retval[0] = rval;
>+		break;
>+	}
>+	case PTRACE_DETACH:
>+		bsd_args.req = PT_DETACH;
>+		/* fall through */
>+	case PTRACE_SINGLESTEP:
>+	case PTRACE_CONT:
>+		bsd_args.data = map_signum(uap->data);
>+		bsd_args.addr = (caddr_t)1;
>+		error = ptrace(p, &bsd_args);
>+		break;
>+	case PTRACE_ATTACH:
>+		bsd_args.req = PT_ATTACH;
>+		error = ptrace(p, &bsd_args);
>+		break;
>+	case PTRACE_GETREGS: {
>+		struct reg *bsd_r = (struct reg*)stackgap_alloc(&sg,
>+                    sizeof(*bsd_r));
>+		/* Linux is using data where FreeBSD is using addr */
>+		bsd_args.req  = PT_GETREGS;
>+		bsd_args.addr = (caddr_t)bsd_r;
>+		bsd_args.data = 0;
>+		error = ptrace(p, &bsd_args);
>+		if (error == 0)
>+			error = map_regs_to_linux(bsd_r, &r.reg);
>+		if (error == 0)
>+			error = copyout(&r.reg, (caddr_t)uap->data, sizeof r.reg);
>+		break;
>+	}
>+	case PTRACE_SETREGS: {
>+		struct reg *bsd_r = (struct reg*)stackgap_alloc(&sg,
>+                    sizeof(*bsd_r));
>+		/* Linux is using data where FreeBSD is using addr */
>+		bsd_args.req  = PT_SETREGS;
>+		bsd_args.addr = (caddr_t)bsd_r;
>+		bsd_args.data = 0;
>+		error = copyin((caddr_t)uap->data, &r.reg, sizeof r.reg);
>+		if (error == 0)
>+			error = map_regs_from_linux(bsd_r, &r.reg);
>+		if (error == 0)
>+			error = ptrace(p, &bsd_args);
>+		break;
>+	}
>+	case PTRACE_GETFPREGS: {
>+		struct fpreg *bsd_r = (struct fpreg*)stackgap_alloc(&sg,
>+                    sizeof(*bsd_r));
>+		/* Linux is using data where FreeBSD is using addr */
>+		bsd_args.req  = PT_GETFPREGS;
>+		bsd_args.addr = (caddr_t)bsd_r;
>+		bsd_args.data = 0;
>+		error = ptrace(p, &bsd_args);
>+		if (error == 0)
>+			error = map_fpregs_to_linux(bsd_r, &r.fpreg);
>+		if (error == 0)
>+			error = copyout(&r.fpreg, (caddr_t)uap->data, sizeof r.fpreg);
>+		break;
>+	}
>+	case PTRACE_SETFPREGS: {
>+		struct fpreg *bsd_r = (struct fpreg*)stackgap_alloc(&sg,
>+                    sizeof(*bsd_r));
>+		/* Linux is using data where FreeBSD is using addr */
>+		bsd_args.req  = PT_SETFPREGS;
>+		bsd_args.addr = (caddr_t)bsd_r;
>+		bsd_args.data = 0;
>+		error = copyin((caddr_t)uap->data, &r.fpreg, sizeof r.fpreg);
>+		if (error == 0)
>+			error = map_fpregs_from_linux(bsd_r, &r.fpreg);
>+		if (error == 0)
>+			error = ptrace(p, &bsd_args);
>+		break;
>+	}
>+	case PTRACE_SETFPXREGS:
>+	case PTRACE_GETFPXREGS: {
>+		struct proc *pchild;
>+		struct fpreg *bsd_r;
>+
>+		/*
>+		 * Use FreeBSD PT_GETFPREGS for permisson testing.
>+		 */
>+		bsd_r = (struct fpreg*)stackgap_alloc(&sg,
>+                    sizeof(*bsd_r));
>+		bsd_args.req  = PT_GETFPREGS;
>+		bsd_args.addr = (caddr_t)bsd_r;
>+		bsd_args.data = 0;
>+		error = ptrace(p, &bsd_args);
>+		/*
>+		 * If this fails, PTRACE_GETFPXREGS should fail
>+		 * for exactly the same reason. 
>+		*/
>+		if (error != 0) 			     
>+			break;
>+
>+		if ((pchild = pfind(uap->pid)) == NULL) {
>+			error = ESRCH;
>+			break;
>+		}
>+		if (uap->req == PTRACE_GETFPXREGS) {
>+			PHOLD(pchild);
>+			error = linux_proc_read_fpxregs(
>+				pchild, &r.fpxreg);
>+			PRELE(pchild);
>+			if (error == 0)
>+				error = copyout(&r.fpxreg,
>+				    (caddr_t)uap->data, sizeof r.fpxreg);
>+		} else {
>+			error = copyin((caddr_t)uap->data,
>+			    &r.fpxreg, sizeof r.fpxreg);
>+			if (error == 0) {
>+				/* clear dangerous bits exactly as Linux does*/
>+				r.fpxreg.mxcsr &= 0xffbf;
>+				PHOLD(pchild);
>+				error = linux_proc_write_fpxregs(
>+					pchild, &r.fpxreg);
>+				PRELE(pchild);
>+			}
>+		}
>+		break;
>+	}
>+	case PTRACE_PEEKUSR:
>+	case PTRACE_POKEUSR: {
>+		error = EIO;
>+
>+		/* check addr for alignment */
>+		if (uap->addr < 0 || uap->addr & (sizeof(l_int) - 1))
>+			break;
>+		/* 
>+		 * Allow linux programs to access register values in
>+		 * user struct. We simulate this through PT_GET/SETREGS
>+		 * as necessary.
>+		 */
>+		if (uap->addr < sizeof(struct linux_pt_reg)) {
>+			struct reg *bsd_r;
>+
>+			bsd_r = (struct reg*)stackgap_alloc(&sg,
>+			    sizeof(*bsd_r));
>+			bsd_args.req  = PT_GETREGS;
>+			bsd_args.addr = (caddr_t)bsd_r;
>+			bsd_args.data = 0;
>+
>+			error = ptrace(p, &bsd_args);
>+			if (error != 0)
>+				break;
>+			
>+			error = map_regs_to_linux(bsd_r, &r.reg);
>+			if (error != 0)
>+				break;
>+
>+			if (uap->req == PTRACE_PEEKUSR) {
>+				error = copyout((char *)&r.reg + uap->addr,
>+				    (caddr_t)uap->data, sizeof(l_int));
>+				break;
>+			}
>+
>+			*(l_int *)((char *)&r.reg + uap->addr) = (l_int)uap->data;
>+
>+			error = map_regs_from_linux(bsd_r, &r.reg);
>+			if (error != 0)
>+				break;
>+
>+			bsd_args.req  = PT_SETREGS;
>+			bsd_args.addr = (caddr_t)bsd_r;
>+			bsd_args.data = 0;
>+			error = ptrace(p, &bsd_args);
>+		}
>+		
>+		/* 
>+		 * Simulate debug registers access
>+		 */
>+		if (uap->addr >= LINUX_DBREG_OFFSET && 
>+		    uap->addr <= LINUX_DBREG_OFFSET + LINUX_DBREG_SIZE) {
>+			struct dbreg *bsd_r;
>+
>+			bsd_r = (struct dbreg*)stackgap_alloc(&sg,
>+			    sizeof(*bsd_r));
>+			bsd_args.req  = PT_GETDBREGS;
>+			bsd_args.addr = (caddr_t)bsd_r;
>+			bsd_args.data = 0;
>+			error = ptrace(p, &bsd_args);
>+			if (error != 0)
>+				break;
>+			
>+			uap->addr -= LINUX_DBREG_OFFSET;
>+			if (uap->req == PTRACE_PEEKUSR) {
>+				error = copyout((char *)bsd_r + uap->addr,
>+				    (caddr_t)uap->data, sizeof(l_int));
>+				break;
>+			}
>+
>+			*(l_int *)((char *)bsd_r + uap->addr) = uap->data;
>+			bsd_args.req  = PT_SETDBREGS;
>+			bsd_args.addr = (caddr_t)bsd_r;
>+			bsd_args.data = 0;
>+			error = ptrace(p, &bsd_args);
>+		}
>+
>+		break;
>+	}
>+	case PTRACE_SYSCALL:
>+		/* fall through */
>+	default:
>+		error = EINVAL;
>+		goto noimpl;
>+	}
>+	return (error);
>+
>+ noimpl:
>+	printf("linux: ptrace(%u, ...) not implemented\n",
>+	    (u_int32_t)uap->req);
>+	return (error);
>+}
>Index: i386/linux/linux_dummy.c
>===================================================================
>RCS file: /home/ncvs/src/sys/i386/linux/linux_dummy.c,v
>retrieving revision 1.21.2.6
>diff -u -r1.21.2.6 linux_dummy.c
>--- i386/linux/linux_dummy.c	5 Nov 2001 19:08:23 -0000	1.21.2.6
>+++ i386/linux/linux_dummy.c	26 Dec 2001 15:33:52 -0000
>@@ -39,7 +39,6 @@
> DUMMY(stat);
> DUMMY(mount);
> DUMMY(stime);
>-DUMMY(ptrace);
> DUMMY(fstat);
> DUMMY(olduname);
> DUMMY(syslog);
>Index: i386/linux/syscalls.master
>===================================================================
>RCS file: /home/ncvs/src/sys/i386/linux/syscalls.master,v
>retrieving revision 1.30.2.7
>diff -u -r1.30.2.7 syscalls.master
>--- i386/linux/syscalls.master	5 Nov 2001 19:08:23 -0000	1.30.2.7
>+++ i386/linux/syscalls.master	26 Dec 2001 15:33:52 -0000
>@@ -65,7 +65,8 @@
> 23	STD	LINUX	{ int linux_setuid16(l_uid16_t uid); }
> 24	STD	LINUX	{ int linux_getuid16(void); }
> 25	STD	LINUX	{ int linux_stime(void); }
>-26	STD	LINUX	{ int linux_ptrace(void); }
>+26	STD	LINUX	{ int linux_ptrace(l_long req, l_long pid, l_long addr, \
>+                            l_long data); }
> 27	STD	LINUX	{ int linux_alarm(l_uint secs); }
> 28	STD	LINUX	{ int linux_fstat(l_uint fd, struct ostat *up); }
> 29	STD	LINUX	{ int linux_pause(void); }
>Index: modules/linux/Makefile
>===================================================================
>RCS file: /home/ncvs/src/sys/modules/linux/Makefile,v
>retrieving revision 1.34.2.9
>diff -u -r1.34.2.9 Makefile
>--- modules/linux/Makefile	5 Nov 2001 19:08:24 -0000	1.34.2.9
>+++ modules/linux/Makefile	26 Dec 2001 15:32:06 -0000
>@@ -8,7 +8,9 @@
> SRCS=	linux_dummy.c linux_file.c linux_getcwd.c linux_ioctl.c linux_ipc.c \
> 	linux_machdep.c linux_mib.c linux_misc.c linux_signal.c linux_socket.c \
> 	linux_stats.c linux_sysctl.c linux_sysent.c linux_sysvec.c \
>-	linux_util.c opt_compat.h opt_linux.h opt_vmpage.h vnode_if.h
>+	linux_util.c linux_ptrace.c opt_compat.h opt_linux.h opt_vmpage.h \
>+	vnode_if.h
>+
> OBJS=	linux_locore.o
> MAN=	linux.8

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