summaryrefslogtreecommitdiffstats
path: root/lib/libc/i386/sys
diff options
context:
space:
mode:
Diffstat (limited to 'lib/libc/i386/sys')
-rw-r--r--lib/libc/i386/sys/Makefile.inc26
-rw-r--r--lib/libc/i386/sys/Ovfork.S58
-rw-r--r--lib/libc/i386/sys/brk.S90
-rw-r--r--lib/libc/i386/sys/cerror.S69
-rw-r--r--lib/libc/i386/sys/exect.S55
-rw-r--r--lib/libc/i386/sys/i386_clr_watch.c46
-rw-r--r--lib/libc/i386/sys/i386_get_ioperm.280
-rw-r--r--lib/libc/i386/sys/i386_get_ioperm.c48
-rw-r--r--lib/libc/i386/sys/i386_get_ldt.2104
-rw-r--r--lib/libc/i386/sys/i386_get_ldt.c46
-rw-r--r--lib/libc/i386/sys/i386_set_ioperm.c42
-rw-r--r--lib/libc/i386/sys/i386_set_ldt.c46
-rw-r--r--lib/libc/i386/sys/i386_set_watch.3103
-rw-r--r--lib/libc/i386/sys/i386_set_watch.c84
-rw-r--r--lib/libc/i386/sys/i386_vm86.293
-rw-r--r--lib/libc/i386/sys/i386_vm86.c41
-rw-r--r--lib/libc/i386/sys/pipe.S50
-rw-r--r--lib/libc/i386/sys/ptrace.S61
-rw-r--r--lib/libc/i386/sys/reboot.S46
-rw-r--r--lib/libc/i386/sys/sbrk.S94
-rw-r--r--lib/libc/i386/sys/setlogin.S58
-rw-r--r--lib/libc/i386/sys/sigreturn.S50
-rw-r--r--lib/libc/i386/sys/syscall.S56
23 files changed, 1446 insertions, 0 deletions
diff --git a/lib/libc/i386/sys/Makefile.inc b/lib/libc/i386/sys/Makefile.inc
new file mode 100644
index 0000000..c25b10e
--- /dev/null
+++ b/lib/libc/i386/sys/Makefile.inc
@@ -0,0 +1,26 @@
+# from: Makefile.inc,v 1.1 1993/09/03 19:04:23 jtc Exp
+# $FreeBSD$
+
+SRCS+= i386_clr_watch.c i386_get_ioperm.c i386_get_ldt.c i386_set_ioperm.c \
+ i386_set_ldt.c i386_set_watch.c i386_vm86.c
+
+MDASM= Ovfork.S brk.S cerror.S exect.S pipe.S ptrace.S reboot.S sbrk.S \
+ setlogin.S sigreturn.S syscall.S
+
+# Don't generate default code for these syscalls:
+NOASM= __semctl.o break.o exit.o ftruncate.o getdomainname.o getlogin.o \
+ lseek.o mlockall.o mmap.o msgctl.o msgget.o msgrcv.o msgsnd.o \
+ munlockall.o openbsd_poll.o pread.o pwrite.o semconfig.o semget.o \
+ semop.o setdomainname.o shmat.o shmctl.o shmdt.o shmget.o sstk.o \
+ truncate.o uname.o vfork.o yield.o
+
+PSEUDO= _getlogin.o _exit.o
+
+.if ${LIB} == "c"
+MAN+= i386_get_ioperm.2 i386_get_ldt.2 i386_vm86.2
+MAN+= i386_set_watch.3
+
+MLINKS+=i386_get_ioperm.2 i386_set_ioperm.2
+MLINKS+=i386_get_ldt.2 i386_set_ldt.2
+MLINKS+=i386_set_watch.3 i386_clr_watch.3
+.endif
diff --git a/lib/libc/i386/sys/Ovfork.S b/lib/libc/i386/sys/Ovfork.S
new file mode 100644
index 0000000..20ece5e
--- /dev/null
+++ b/lib/libc/i386/sys/Ovfork.S
@@ -0,0 +1,58 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)Ovfork.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ .weak _vfork
+ .set _vfork,__sys_vfork
+ .weak vfork
+ .set vfork,__sys_vfork
+ENTRY(__sys_vfork)
+ popl %ecx /* my rta into ecx */
+ mov $SYS_vfork,%eax
+ KERNCALL
+ jb 1f
+ jmp *%ecx
+1:
+ pushl %ecx
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/i386/sys/brk.S b/lib/libc/i386/sys/brk.S
new file mode 100644
index 0000000..61f6cbe
--- /dev/null
+++ b/lib/libc/i386/sys/brk.S
@@ -0,0 +1,90 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)brk.s 5.2 (Berkeley) 12/17/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ .globl HIDENAME(curbrk)
+ .globl HIDENAME(minbrk)
+ENTRY(_brk)
+ jmp ok
+
+ENTRY(brk)
+#ifdef PIC
+ movl 4(%esp),%eax
+ PIC_PROLOGUE
+ movl PIC_GOT(HIDENAME(curbrk)),%edx # set up GOT addressing
+ movl PIC_GOT(HIDENAME(minbrk)),%ecx #
+ PIC_EPILOGUE
+ cmpl %eax,(%ecx)
+ jbe ok
+ movl (%ecx),%eax
+ movl %eax,4(%esp)
+ok:
+ mov $SYS_break,%eax
+ KERNCALL
+ jb err
+ movl 4(%esp),%eax
+ movl %eax,(%edx)
+ movl $0,%eax
+ ret
+err:
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror))
+
+#else
+
+ movl 4(%esp),%eax
+ cmpl %eax,HIDENAME(minbrk)
+ jbe ok
+ movl HIDENAME(minbrk),%eax
+ movl %eax,4(%esp)
+ok:
+ mov $SYS_break,%eax
+ KERNCALL
+ jb err
+ movl 4(%esp),%eax
+ movl %eax,HIDENAME(curbrk)
+ movl $0,%eax
+ ret
+err:
+ jmp HIDENAME(cerror)
+#endif
diff --git a/lib/libc/i386/sys/cerror.S b/lib/libc/i386/sys/cerror.S
new file mode 100644
index 0000000..1d625be
--- /dev/null
+++ b/lib/libc/i386/sys/cerror.S
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)cerror.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ .globl HIDENAME(cerror)
+
+ /*
+ * The __error() function is thread aware. For non-threaded
+ * programs and the initial threaded in threaded programs,
+ * it returns a pointer to the global errno variable.
+ */
+ .globl CNAME(__error)
+ .type CNAME(__error),@function
+HIDENAME(cerror):
+ pushl %eax
+#ifdef PIC
+ /* The caller must execute the PIC prologue before jumping to cerror. */
+ call PIC_PLT(CNAME(__error))
+ popl %ecx
+ PIC_EPILOGUE
+#else
+ call CNAME(__error)
+ popl %ecx
+#endif
+ movl %ecx,(%eax)
+ movl $-1,%eax
+ movl $-1,%edx
+ ret
+
diff --git a/lib/libc/i386/sys/exect.S b/lib/libc/i386/sys/exect.S
new file mode 100644
index 0000000..5848e61
--- /dev/null
+++ b/lib/libc/i386/sys/exect.S
@@ -0,0 +1,55 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)exect.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+#include <machine/psl.h>
+
+ENTRY(exect)
+ mov $SYS_execve,%eax
+ pushf
+ popl %edx
+ orl $ PSL_T,%edx
+ pushl %edx
+ popf
+ KERNCALL
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror)) /* exect(file, argv, env); */
diff --git a/lib/libc/i386/sys/i386_clr_watch.c b/lib/libc/i386/sys/i386_clr_watch.c
new file mode 100644
index 0000000..ae2ed79
--- /dev/null
+++ b/lib/libc/i386/sys/i386_clr_watch.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright 2000 Brian S. Dean <bsd@bsdhome.com>
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BRIAN S. DEAN ``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 BRIAN S. DEAN 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/reg.h>
+#include <machine/sysarch.h>
+
+int
+i386_clr_watch(int watchnum, struct dbreg * d)
+{
+
+ if (watchnum < 0 || watchnum >= 4)
+ return -1;
+
+ d->dr7 = d->dr7 & ~((0x3 << (watchnum*2)) | (0x0f << (watchnum*4+16)));
+ DBREG_DRX(d,watchnum) = 0;
+
+ return 0;
+}
diff --git a/lib/libc/i386/sys/i386_get_ioperm.2 b/lib/libc/i386/sys/i386_get_ioperm.2
new file mode 100644
index 0000000..76b9cd0
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ioperm.2
@@ -0,0 +1,80 @@
+.\" Copyright (c) 1998 Jonathan Lemon
+.\" 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.
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd July 27, 1998
+.Os
+.Dt I386_GET_IOPERM 2
+.Sh NAME
+.Nm i386_get_ioperm ,
+.Nm i386_set_ioperm
+.Nd manage per-process access to the i386 I/O port space
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In machine/sysarch.h
+.Ft int
+.Fn i386_get_ioperm "unsigned int start" "unsigned int *length" "int *enable"
+.Ft int
+.Fn i386_set_ioperm "unsigned int start" "unsigned int length" "int enable"
+.Sh DESCRIPTION
+.Fn i386_get_ioperm
+will return the permission for the process' I/O port space in the
+.Fa *enable
+argument. The port range starts at
+.Fa start
+and the number of contiguous entries will be returned in
+.Fa *length .
+.Pp
+.Fn i386_set_ioperm
+will set access to a range of I/O ports described by the
+.Fa start
+and
+.Fa length
+arguments to the state specified by the
+.Fa enable
+argument.
+.Sh RETURN VALUES
+.Rv -std
+.Sh ERRORS
+.Fn i386_get_ioperm
+and
+.Fn i386_set_ioperm
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+An invalid range was specified by the
+.Fa start
+or
+.Fa length
+arguments.
+.It Bq Er EPERM
+The caller of i386_set_ioperm was not the superuser.
+.El
+.Sh SEE ALSO
+.Xr io 4
+.Sh AUTHORS
+This man page was written by
+.An Jonathan Lemon .
diff --git a/lib/libc/i386/sys/i386_get_ioperm.c b/lib/libc/i386/sys/i386_get_ioperm.c
new file mode 100644
index 0000000..5fe245a
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ioperm.c
@@ -0,0 +1,48 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/sysarch.h>
+
+int
+i386_get_ioperm(unsigned int start, unsigned int *length, int *enable)
+{
+ struct i386_ioperm_args p;
+ int error;
+
+ p.start = start;
+ p.length = *length;
+ p.enable = *enable;
+
+ error = sysarch(I386_GET_IOPERM, (char *)&p);
+
+ *length = p.length;
+ *enable = p.enable;
+
+ return (error);
+}
diff --git a/lib/libc/i386/sys/i386_get_ldt.2 b/lib/libc/i386/sys/i386_get_ldt.2
new file mode 100644
index 0000000..340c4f2
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ldt.2
@@ -0,0 +1,104 @@
+.\" Copyright (c) 1980, 1991 Regents of the University of California.
+.\" 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.
+.\" 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. All advertising materials mentioning features or use of this software
+.\" must display the following acknowledgement:
+.\" This product includes software developed by the University of
+.\" California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\" may be used to endorse or promote products derived from this software
+.\" without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+.\"
+.\" from: @(#)fork.2 6.5 (Berkeley) 3/10/91
+.\" $FreeBSD$
+.\"
+.Dd September 20, 1993
+.Dt I386_GET_LDT 2
+.Os
+.Sh NAME
+.Nm i386_get_ldt ,
+.Nm i386_set_ldt
+.Nd manage i386 per-process Local Descriptor Table entries
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In machine/segments.h
+.In machine/sysarch.h
+.Ft int
+.Fn i386_get_ldt "int start_sel" "union descriptor *descs" "int num_sels"
+.Ft int
+.Fn i386_set_ldt "int start_sel" "union descriptor *descs" "int num_sels"
+.Sh DESCRIPTION
+.Fn i386_get_ldt
+will return the list of i386 descriptors that the process has in its
+LDT.
+.Fn i386_set_ldt
+will set a list of i386 descriptors for the current process in its
+LDT.
+Both routines accept a starting selector number
+.Fa start_sel ,
+an array of memory that
+will contain the descriptors to be set or returned
+.Fa descs ,
+and the number of entries to set or return
+.Fa num_sels .
+.Pp
+The argument
+.Fa descs
+can be either segment_descriptor or gate_descriptor and are defined in
+.Aq Pa i386/segments.h .
+These structures are defined by the architecture
+as disjoint bit-fields, so care must be taken in constructing them.
+.Pp
+Note that you must have
+.Dq options USER_LDT
+in your kernel configuration file to use these functions.
+.Sh RETURN VALUES
+Upon successful completion,
+.Fn i386_get_ldt
+returns the number of descriptors currently in the LDT.
+.Fn i386_set_ldt
+returns the first selector set.
+Otherwise, a value of -1 is returned and the global
+variable
+.Va errno
+is set to indicate the error.
+.Sh ERRORS
+.Fn i386_get_ldt
+and
+.Fn i386_set_ldt
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+An inappropriate parameter was used for
+.Fa start_sel
+or
+.Fa num_sels .
+.It Bq Er EACCES
+The caller attempted to use a descriptor that would
+circumvent protection or cause a failure.
+.El
+.Sh SEE ALSO
+i386 Microprocessor Programmer's Reference Manual, Intel
+.Sh WARNING
+You can really hose your process using this.
diff --git a/lib/libc/i386/sys/i386_get_ldt.c b/lib/libc/i386/sys/i386_get_ldt.c
new file mode 100644
index 0000000..ec95d99
--- /dev/null
+++ b/lib/libc/i386/sys/i386_get_ldt.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1993 John Brezak
+ * 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.
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/cdefs.h>
+#include <machine/segments.h>
+#include <machine/sysarch.h>
+
+int
+i386_get_ldt(int start, union descriptor *descs, int num)
+{
+ struct i386_ldt_args p;
+
+ p.start = start;
+ p.descs = descs;
+ p.num = num;
+
+ return sysarch(I386_GET_LDT, (char *)&p);
+}
diff --git a/lib/libc/i386/sys/i386_set_ioperm.c b/lib/libc/i386/sys/i386_set_ioperm.c
new file mode 100644
index 0000000..f23881d
--- /dev/null
+++ b/lib/libc/i386/sys/i386_set_ioperm.c
@@ -0,0 +1,42 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/sysarch.h>
+
+int
+i386_set_ioperm(unsigned int start, unsigned int length, int enable)
+{
+ struct i386_ioperm_args p;
+
+ p.start = start;
+ p.length = length;
+ p.enable = enable;
+
+ return (sysarch(I386_SET_IOPERM, (char *)&p));
+}
diff --git a/lib/libc/i386/sys/i386_set_ldt.c b/lib/libc/i386/sys/i386_set_ldt.c
new file mode 100644
index 0000000..756d49d
--- /dev/null
+++ b/lib/libc/i386/sys/i386_set_ldt.c
@@ -0,0 +1,46 @@
+/*
+ * Copyright (c) 1993 John Brezak
+ * 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.
+ * 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <sys/cdefs.h>
+#include <machine/segments.h>
+#include <machine/sysarch.h>
+
+int
+i386_set_ldt(int start, union descriptor *descs, int num)
+{
+ struct i386_ldt_args p;
+
+ p.start = start;
+ p.descs = descs;
+ p.num = num;
+
+ return sysarch(I386_SET_LDT, (char *)&p);
+}
diff --git a/lib/libc/i386/sys/i386_set_watch.3 b/lib/libc/i386/sys/i386_set_watch.3
new file mode 100644
index 0000000..28f2261
--- /dev/null
+++ b/lib/libc/i386/sys/i386_set_watch.3
@@ -0,0 +1,103 @@
+.\" Copyright (c) 2000 Brian S. Dean
+.\" All rights reserved.
+.\"
+.\" This man-page is based on a similar man-page by Jonathan Lemon
+.\" which is copyrighted under the following conditions:
+.\"
+.\" 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.
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd August 24, 2000
+.Os
+.Dt I386_SET_WATCH 3
+.Sh NAME
+.Nm i386_clr_watch ,
+.Nm i386_set_watch
+.Nd manage i386 debug register values
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In machine/reg.h
+.In machine/sysarch.h
+.Ft int
+.Fn i386_clr_watch "int watchnum" "struct dbreg *d"
+.Ft int
+.Fn i386_set_watch "int watchnum" "unsigned int watchaddr" "int size" "int access" "struct dbreg *d"
+.Sh DESCRIPTION
+.Fn i386_clr_watch
+will disable the indicated watch point within the specified debug
+register set.
+.Pp
+.Fn i386_set_watch
+will set up the specified debug registers as indicated by the
+parameters. The
+.Fa watchnum
+argument specifies which watch register is used, 0, 1, 2, 3, or -1. If
+.Fa watchnum
+is -1, a free watch register is found and used. If there are no free
+watch registers, an error code of -1 is returned.
+.Fa Watchaddr
+specifies the watch address,
+.Fa size
+specifies the size in bytes of the area to be watched (1, 2, or 4 bytes),
+and
+.Fa access
+specifes the type of watch point:
+.Pp
+.Bd -literal -offset indent -compact
+DBREG_DR7_EXEC An execution breakpoint.
+DBREG_DR7_WRONLY Break only when the watch area is written to.
+DBREG_DR7_RDWR Break when the watch area is read from or written
+ to.
+.Ed
+.Pp
+Note that these functions do not actually set or clear breakpoints;
+they manipulate the indicated debug register set. You must use
+.Xr ptrace 2
+to retrieve and install the debug register values for a process.
+.Sh RETURN VALUES
+.Fn i386_clr_watch
+returns 0 on success, or -1 if
+.Fa watchnum
+is invalid (not in the range of 0-3).
+.Pp
+.Fn i386_set_watch
+will return the
+.Fa watchnum
+argument, or the watchnum actually used in the case that
+.Fa watchnum
+is -1 on success. On error,
+.Fn i386_set_watch
+will return -1 indicating that the watchpoint could not be set up
+because either no more watchpoints are available, or
+.Fa watchnum ,
+.Fa size ,
+or
+.Fa access
+is invalid.
+.Sh SEE ALSO
+.Xr ptrace 2 ,
+.Xr procfs 5
+.Sh AUTHORS
+This man page was written by
+.An Brian S. Dean .
diff --git a/lib/libc/i386/sys/i386_set_watch.c b/lib/libc/i386/sys/i386_set_watch.c
new file mode 100644
index 0000000..0767cc9
--- /dev/null
+++ b/lib/libc/i386/sys/i386_set_watch.c
@@ -0,0 +1,84 @@
+/*
+ * Copyright 2000 Brian S. Dean <bsd@bsdhome.com>
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY BRIAN S. DEAN ``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 BRIAN S. DEAN 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/reg.h>
+#include <machine/sysarch.h>
+
+int
+i386_set_watch(int watchnum, unsigned int watchaddr, int size,
+ int access, struct dbreg * d)
+{
+ int i;
+ unsigned int mask;
+
+ if (watchnum == -1) {
+ for (i = 0, mask = 0x3; i < 4; i++, mask <<= 2)
+ if ((d->dr7 & mask) == 0)
+ break;
+ if (i < 4)
+ watchnum = i;
+ else
+ return -1;
+ }
+
+ switch (access) {
+ case DBREG_DR7_EXEC:
+ size = 1; /* size must be 1 for an execution breakpoint */
+ /* fall through */
+ case DBREG_DR7_WRONLY:
+ case DBREG_DR7_RDWR:
+ break;
+ default : return -1; break;
+ }
+
+ /*
+ * we can watch a 1, 2, or 4 byte sized location
+ */
+ switch (size) {
+ case 1 : mask = 0x00; break;
+ case 2 : mask = 0x01 << 2; break;
+ case 4 : mask = 0x03 << 2; break;
+ default : return -1; break;
+ }
+
+ mask |= access;
+
+ /* clear the bits we are about to affect */
+ d->dr7 &= ~((0x3 << (watchnum*2)) | (0x0f << (watchnum*4+16)));
+
+ /* set drN register to the address, N=watchnum */
+ DBREG_DRX(d,watchnum) = watchaddr;
+
+ /* enable the watchpoint */
+ d->dr7 |= (0x2 << (watchnum*2)) | (mask << (watchnum*4+16));
+
+ return watchnum;
+}
diff --git a/lib/libc/i386/sys/i386_vm86.2 b/lib/libc/i386/sys/i386_vm86.2
new file mode 100644
index 0000000..9a5eabe
--- /dev/null
+++ b/lib/libc/i386/sys/i386_vm86.2
@@ -0,0 +1,93 @@
+.\" Copyright (c) 1998 Jonathan Lemon
+.\" 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.
+.\" 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.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd July 27, 1998
+.Os
+.Dt I386_VM86 2
+.Sh NAME
+.Nm i386_vm86
+.Nd control vm86-related functions
+.Sh LIBRARY
+.Lb libc
+.Sh SYNOPSIS
+.In sys/types.h
+.In machine/sysarch.h
+.In machine/vm86.h
+.Ft int
+.Fn i386_vm86 "int function" "void *data"
+.Sh DESCRIPTION
+.Fn i386_vm86
+is used to call various vm86 related functions.
+.Fa function
+can be one of the following values:
+.Bl -tag -offset indent -width VM86_SET_VME
+.It Dv VM86_INIT
+This will initialize the kernel's vm86 parameter area for the
+process, and permit the process to make vm86 calls.
+.Fa data
+points to the following structure:
+.Bd -literal
+struct vm86_init_args {
+ int debug;
+ int cpu_type;
+ u_char int_map[32];
+};
+.Ed
+.Pp
+.Fa debug
+is used to turn on debugging code.
+.Fa cpu_type
+controls the type of CPU being emulated, and is currently unimplemented.
+.Fa int_map
+is a bitmap which determines whether vm86 interrupts should be handled
+in vm86 mode, or reflected back to the process. If the
+.Em Nth
+bit is set, the interrupt will be reflected to the process, otherwise
+it will be dispatched by the vm86 interrupt table.
+.\" .It Dv VM86_SET_VME
+.\" .It Dv VM86_GET_VME
+.\" .It Dv VM86_INTCALL
+.El
+.Pp
+vm86 mode is entered by calling
+.Xr sigreturn 2
+with the correct machine context for vm86, and with the
+.Em PSL_VM
+bit set. Control returns to the process upon delivery of a signal.
+.Sh RETURN VALUES
+.Rv -std i386_vm86
+.Sh ERRORS
+.Fn i386_vm86
+will fail if:
+.Bl -tag -width Er
+.It Bq Er EINVAL
+The kernel does not have vm86 support, or an invalid function was specified.
+.It Bq Er ENOMEM
+There is not enough memory to initialize the kernel data structures.
+.El
+.Sh AUTHORS
+This man page was written by
+.An Jonathan Lemon .
diff --git a/lib/libc/i386/sys/i386_vm86.c b/lib/libc/i386/sys/i386_vm86.c
new file mode 100644
index 0000000..6abff2d
--- /dev/null
+++ b/lib/libc/i386/sys/i386_vm86.c
@@ -0,0 +1,41 @@
+/*-
+ * Copyright (c) 1998 Jonathan Lemon
+ * 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.
+ * 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``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 OR CONTRIBUTORS 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.
+ */
+
+#include <sys/cdefs.h>
+__FBSDID("$FreeBSD$");
+
+#include <machine/sysarch.h>
+
+int
+i386_vm86(int fcn, void *data)
+{
+ struct i386_vm86_args p;
+
+ p.sub_op = fcn;
+ p.sub_args = (char *)data;
+
+ return (sysarch(I386_VM86, (void *)&p));
+}
diff --git a/lib/libc/i386/sys/pipe.S b/lib/libc/i386/sys/pipe.S
new file mode 100644
index 0000000..99a7ff0
--- /dev/null
+++ b/lib/libc/i386/sys/pipe.S
@@ -0,0 +1,50 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)pipe.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+SYSCALL(pipe)
+ movl 4(%esp),%ecx
+ movl %eax,(%ecx)
+ movl %edx,4(%ecx)
+ movl $0,%eax
+ ret
diff --git a/lib/libc/i386/sys/ptrace.S b/lib/libc/i386/sys/ptrace.S
new file mode 100644
index 0000000..71ce5c7
--- /dev/null
+++ b/lib/libc/i386/sys/ptrace.S
@@ -0,0 +1,61 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)ptrace.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ENTRY(ptrace)
+ xorl %eax,%eax
+#ifdef PIC
+ PIC_PROLOGUE
+ movl PIC_GOT(CNAME(errno)),%edx
+ movl %eax,(%edx)
+ PIC_EPILOGUE
+#else
+ movl %eax,CNAME(errno)
+#endif
+ mov $SYS_ptrace,%eax
+ KERNCALL
+ jb err
+ ret
+err:
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror))
diff --git a/lib/libc/i386/sys/reboot.S b/lib/libc/i386/sys/reboot.S
new file mode 100644
index 0000000..80e3d36
--- /dev/null
+++ b/lib/libc/i386/sys/reboot.S
@@ -0,0 +1,46 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)reboot.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+SYSCALL(reboot)
+ iret
diff --git a/lib/libc/i386/sys/sbrk.S b/lib/libc/i386/sys/sbrk.S
new file mode 100644
index 0000000..dffb7ea
--- /dev/null
+++ b/lib/libc/i386/sys/sbrk.S
@@ -0,0 +1,94 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)sbrk.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ .globl CNAME(end)
+ .globl HIDENAME(minbrk)
+ .globl HIDENAME(curbrk)
+
+ .data
+HIDENAME(minbrk): .long CNAME(end)
+HIDENAME(curbrk): .long CNAME(end)
+ .text
+
+ENTRY(sbrk)
+#ifdef PIC
+ movl 4(%esp),%ecx
+ PIC_PROLOGUE
+ movl PIC_GOT(HIDENAME(curbrk)),%edx
+ movl (%edx),%eax
+ PIC_EPILOGUE
+ testl %ecx,%ecx
+ jz back
+ addl %eax,4(%esp)
+ mov $SYS_break,%eax
+ KERNCALL
+ jb err
+ PIC_PROLOGUE
+ movl PIC_GOT(HIDENAME(curbrk)),%edx
+ movl (%edx),%eax
+ addl %ecx,(%edx)
+ PIC_EPILOGUE
+back:
+ ret
+err:
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror))
+
+#else /* !PIC */
+
+ movl 4(%esp),%ecx
+ movl HIDENAME(curbrk),%eax
+ testl %ecx,%ecx
+ jz back
+ addl %eax,4(%esp)
+ mov $SYS_break,%eax
+ KERNCALL
+ jb err
+ movl HIDENAME(curbrk),%eax
+ addl %ecx,HIDENAME(curbrk)
+back:
+ ret
+err:
+ jmp HIDENAME(cerror)
+#endif /* PIC */
diff --git a/lib/libc/i386/sys/setlogin.S b/lib/libc/i386/sys/setlogin.S
new file mode 100644
index 0000000..013dc7e
--- /dev/null
+++ b/lib/libc/i386/sys/setlogin.S
@@ -0,0 +1,58 @@
+/*-
+ * Copyright (c) 1991 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(LIBC_SCCS) && !defined(lint)
+ .asciz "@(#)setlogin.s 5.2 (Berkeley) 4/12/91"
+#endif /* LIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+.globl CNAME(_logname_valid) /* in _getlogin() */
+
+SYSCALL(setlogin)
+#ifdef PIC
+ PIC_PROLOGUE
+ pushl %eax
+ movl PIC_GOT(CNAME(_logname_valid)),%eax
+ movl $0,(%eax)
+ popl %eax
+ PIC_EPILOGUE
+#else
+ movl $0,CNAME(_logname_valid)
+#endif
+ ret /* setlogin(name) */
diff --git a/lib/libc/i386/sys/sigreturn.S b/lib/libc/i386/sys/sigreturn.S
new file mode 100644
index 0000000..2556ab9
--- /dev/null
+++ b/lib/libc/i386/sys/sigreturn.S
@@ -0,0 +1,50 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)sigreturn.s 5.2 (Berkeley) 12/17/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+/*
+ * NOTE: If the profiling ENTRY() code ever changes any registers, they
+ * must be saved. On FreeBSD, this is not the case.
+ */
+
+RSYSCALL(sigreturn)
diff --git a/lib/libc/i386/sys/syscall.S b/lib/libc/i386/sys/syscall.S
new file mode 100644
index 0000000..c6e9083
--- /dev/null
+++ b/lib/libc/i386/sys/syscall.S
@@ -0,0 +1,56 @@
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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.
+ * 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. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * This product includes software developed by the University of
+ * California, Berkeley and its contributors.
+ * 4. Neither the name of the University nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ */
+
+#if defined(SYSLIBC_SCCS) && !defined(lint)
+ .asciz "@(#)syscall.s 5.1 (Berkeley) 4/23/90"
+#endif /* SYSLIBC_SCCS and not lint */
+#include <machine/asm.h>
+__FBSDID("$FreeBSD$");
+
+#include "SYS.h"
+
+ENTRY(syscall)
+ pop %ecx /* rta */
+ pop %eax /* syscall number */
+ push %ecx
+ KERNCALL
+ push %ecx /* need to push a word to keep stack frame intact
+ upon return; the word must be the return address. */
+ jb 1f
+ ret
+1:
+ PIC_PROLOGUE
+ jmp PIC_PLT(HIDENAME(cerror))
OpenPOWER on IntegriCloud