diff options
Diffstat (limited to 'lib/libc/i386/sys')
28 files changed, 1753 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..ca487a6 --- /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 +# $FreeBSD$ + +.if !defined(COMPAT_32BIT) +SRCS+= i386_clr_watch.c i386_get_ioperm.c \ + i386_set_ioperm.c i386_set_watch.c i386_vm86.c +.endif +SRCS+= i386_get_fsbase.c i386_get_gsbase.c i386_get_ldt.c \ + i386_set_fsbase.c i386_set_gsbase.c i386_set_ldt.c + +MDASM= Ovfork.S brk.S cerror.S exect.S getcontext.S pipe.S ptrace.S \ + reboot.S sbrk.S setlogin.S sigreturn.S syscall.S + +# Don't generate default code for these syscalls: +NOASM= break.o exit.o ftruncate.o getdomainname.o getlogin.o \ + lseek.o mmap.o openbsd_poll.o pread.o \ + pwrite.o setdomainname.o sstk.o truncate.o uname.o vfork.o yield.o + +PSEUDO= _getlogin.o _exit.o + +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 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/getcontext.S b/lib/libc/i386/sys/getcontext.S new file mode 100644 index 0000000..b66ad30 --- /dev/null +++ b/lib/libc/i386/sys/getcontext.S @@ -0,0 +1,50 @@ +/*- + * Copyright (c) 2003 Peter Wemm <peter@FreeBSD.org> + * 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 <machine/asm.h> +__FBSDID("$FreeBSD$"); + +#include <SYS.h> + +/* + * This has to be magic to handle the multiple returns. + * Otherwise, the setcontext() syscall will return here and we'll + * pop off the return address and go to the *setcontext* call. + */ + .weak _getcontext + .set _getcontext,__sys_getcontext + .weak getcontext + .set getcontext,__sys_getcontext +ENTRY(__sys_getcontext) + movl (%esp),%ecx /* save getcontext return address */ + mov $SYS_getcontext,%eax + KERNCALL + jb 1f + addl $4,%esp /* remove stale (setcontext) return address */ + jmp *%ecx /* restore return address */ +1: + PIC_PROLOGUE + jmp PIC_PLT(HIDENAME(cerror)) diff --git a/lib/libc/i386/sys/i386_clr_watch.c b/lib/libc/i386/sys/i386_clr_watch.c new file mode 100644 index 0000000..721c1b8 --- /dev/null +++ b/lib/libc/i386/sys/i386_clr_watch.c @@ -0,0 +1,46 @@ +/* + * Copyright 2000 Brian S. Dean <bsd@bsdhome.com> + * All Rights Reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY BRIAN S. DEAN ``AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR + * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BRIAN S. DEAN BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR + * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT + * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR + * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF + * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE + * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH + * DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <machine/reg.h> +#include <machine/sysarch.h> + +int +i386_clr_watch(int watchnum, struct dbreg * d) +{ + + if (watchnum < 0 || watchnum >= 4) + return -1; + + DBREG_DRX(d,7) = DBREG_DRX(d,7) & ~((0x3 << (watchnum*2)) | (0x0f << (watchnum*4+16))); + DBREG_DRX(d,watchnum) = 0; + + return 0; +} diff --git a/lib/libc/i386/sys/i386_get_fsbase.c b/lib/libc/i386/sys/i386_get_fsbase.c new file mode 100644 index 0000000..24c4764 --- /dev/null +++ b/lib/libc/i386/sys/i386_get_fsbase.c @@ -0,0 +1,37 @@ +/*- + * Copyright (c) 2005 Peter Wemm + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <machine/sysarch.h> + +int +i386_get_fsbase(void **addr) +{ + + return (sysarch(I386_GET_FSBASE, addr)); +} diff --git a/lib/libc/i386/sys/i386_get_gsbase.c b/lib/libc/i386/sys/i386_get_gsbase.c new file mode 100644 index 0000000..f524f31 --- /dev/null +++ b/lib/libc/i386/sys/i386_get_gsbase.c @@ -0,0 +1,37 @@ +/*- + * Copyright (c) 2005 Peter Wemm + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <machine/sysarch.h> + +int +i386_get_gsbase(void **addr) +{ + + return (sysarch(I386_GET_GSBASE, addr)); +} 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..4d3bbf1 --- /dev/null +++ b/lib/libc/i386/sys/i386_get_ioperm.2 @@ -0,0 +1,87 @@ +.\" 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 +The +.Fn i386_get_ioperm +system call +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 +The +.Fn i386_set_ioperm +system call +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 +The +.Fn i386_get_ioperm +and +.Fn i386_set_ioperm +system calls +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..7bc27f8 --- /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, &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..135d8b8 --- /dev/null +++ b/lib/libc/i386/sys/i386_get_ldt.2 @@ -0,0 +1,143 @@ +.\" 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 +The +.Fn i386_get_ldt +system call +will return the list of i386 descriptors that the process has in its +LDT. +The +.Fn i386_set_ldt +system call +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 +.In i386/segments.h . +These structures are defined by the architecture +as disjoint bit-fields, so care must be taken in constructing them. +.Pp +If +.Fa start_sel +is +.Em LDT_AUTO_ALLOC , +.Fa num_sels +is 1 and the descriptor pointed to by +.Fa descs +is legal, then +.Fn i386_set_ldt +will allocate a descriptor and return its +selector number. +.Pp +If +.Fa num_descs +is 1, +.Fa start_sels +is valid, and +.Fa descs +is NULL, then +.Fn i386_set_ldt +will free that descriptor +(making it available to be reallocated again later). +.Pp +If +.Fa num_descs +is 0, +.Fa start_sels +is 0 and +.Fa descs +is NULL then, as a special case, +.Fn i386_set_ldt +will free all descriptors. +.Sh RETURN VALUES +Upon successful completion, +.Fn i386_get_ldt +returns the number of descriptors currently in the LDT. +The +.Fn i386_set_ldt +system call +returns the first selector set. +In the case when a descriptor is allocated by the kernel, its number will +be returned. +Otherwise, a value of -1 is returned and the global +variable +.Va errno +is set to indicate the error. +.Sh ERRORS +The +.Fn i386_get_ldt +and +.Fn i386_set_ldt +system calls +will fail if: +.Bl -tag -width Er +.It Bq Er EINVAL +An inappropriate value 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..73d7667 --- /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, &p); +} diff --git a/lib/libc/i386/sys/i386_set_fsbase.c b/lib/libc/i386/sys/i386_set_fsbase.c new file mode 100644 index 0000000..6b55446 --- /dev/null +++ b/lib/libc/i386/sys/i386_set_fsbase.c @@ -0,0 +1,37 @@ +/*- + * Copyright (c) 2005 Peter Wemm + * 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_fsbase(void *addr) +{ + + return (sysarch(I386_SET_FSBASE, &addr)); +} diff --git a/lib/libc/i386/sys/i386_set_gsbase.c b/lib/libc/i386/sys/i386_set_gsbase.c new file mode 100644 index 0000000..aaf2312 --- /dev/null +++ b/lib/libc/i386/sys/i386_set_gsbase.c @@ -0,0 +1,37 @@ +/*- + * Copyright (c) 2005 Peter Wemm + * 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_gsbase(void *addr) +{ + + return (sysarch(I386_SET_GSBASE, &addr)); +} 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..258e2af --- /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, &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..0bb109a --- /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, &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..e3195fc --- /dev/null +++ b/lib/libc/i386/sys/i386_set_watch.3 @@ -0,0 +1,118 @@ +.\" 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 +The +.Fn i386_clr_watch +function +will disable the indicated watch point within the specified debug +register set. +.Pp +The +.Fn i386_set_watch +function +will set up the specified debug registers as indicated by the +arguments. +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. +The +.Fa watchaddr +argument +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 +specifies 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 +On success, the +.Fn i386_clr_watch +function returns 0. +On error, -1 returned which indicates that +.Fa watchnum +is invalid (not in the range of 0-3). +If the specified watchnum was already disabled, no error is returned. +.Pp +On success, the +.Fn i386_set_watch +function returns the +.Fa watchnum +argument, or the watchnum actually used in the case where the specified +.Fa watchnum +was -1. +On error, the +.Fn i386_set_watch +function returns -1 indicating that the watchpoint could not established +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..cc1b8ed --- /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 ((DBREG_DRX(d,7) & 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 */ + DBREG_DRX(d,7) &= ~((0x3 << (watchnum*2)) | (0x0f << (watchnum*4+16))); + + /* set drN register to the address, N=watchnum */ + DBREG_DRX(d,watchnum) = watchaddr; + + /* enable the watchpoint */ + DBREG_DRX(d,7) |= (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..03c1873 --- /dev/null +++ b/lib/libc/i386/sys/i386_vm86.2 @@ -0,0 +1,141 @@ +.\" 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 +The +.Fn i386_vm86 +system call +is used to call various vm86 related functions. +The +.Fa function +argument +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. +The +.Fa data +argument +points to the following structure: +.Bd -literal +struct vm86_init_args { + int debug; + int cpu_type; + u_char int_map[32]; +}; +.Ed +.Pp +The +.Fa debug +argument +is used to turn on debugging code. +The +.Fa cpu_type +argument +controls the type of CPU being emulated, and is currently unimplemented. +The +.Fa int_map +argument +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_INTCALL +This allows calls to be made to vm86 interrupt handlers by the process. +It effectively simulates an INT instruction. +.Fa data +should point to the following structure: +.Bd -literal +struct vm86_intcall_args { + int intnum; + struct vm86frame vmf; +}; +.Ed +.Pp +.Fa intnum +specifies the operand of INT for the simulated call. +A value of 0x10, for example, would often be used to call into the VGA BIOS. +.Fa vmf +is used to initialize CPU registers according to the calling convention for +the interrupt handler. +.It Dv VM86_GET_VME +This is used to retrieve the current state of the Pentium(r) processor's +VME (Virtual-8086 Mode Extensions) flag, which is bit 0 of CR4. +.Fa data +should be initialized to point to the following: +.Bd -literal +struct vm86_vme_args { + int state; /* status */ +}; +.Ed +.Pp +.Fa state +will contain the state of the VME flag on return. +.\" .It Dv VM86_SET_VME +.El +.Pp +vm86 mode is entered by calling +.Xr sigreturn 2 +with the correct machine context for vm86, and with the +.Dv PSL_VM +bit set. +Control returns to the process upon delivery of a signal. +.Sh RETURN VALUES +.Rv -std i386_vm86 +.Sh ERRORS +The +.Fn i386_vm86 +system call +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 +.An -nosplit +This man page was written by +.An Jonathan Lemon , +and updated by +.An Bruce M Simpson . diff --git a/lib/libc/i386/sys/i386_vm86.c b/lib/libc/i386/sys/i386_vm86.c new file mode 100644 index 0000000..c007608 --- /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, &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..97c4769 --- /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)) |
