Aren
/
NetBSD
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity
NetBSD/sys/compat/sunos32/sunos32_exec.c

87 lines
2.5 KiB
C
Raw Normal View History

Put back Emmanuel's sigfilter hooks, as decided by Core.
2003-12-20 22:01:29 +03:00
/* $NetBSD: sunos32_exec.c,v 1.19 2003/12/20 19:01:30 fvdl Exp $ */
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
/*
* Copyright (c) 2001 Matthew R. Green
* 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.
*/
add RCSIDs (including regeneration of files as appropriate)
2001-11-13 05:07:52 +03:00
#include <sys/cdefs.h>
Put back Emmanuel's sigfilter hooks, as decided by Core.
2003-12-20 22:01:29 +03:00
__KERNEL_RCSID(0, "$NetBSD: sunos32_exec.c,v 1.19 2003/12/20 19:01:30 fvdl Exp $");
add RCSIDs (including regeneration of files as appropriate)
2001-11-13 05:07:52 +03:00
use _KERNEL_OPT.
2001-05-30 15:37:21 +04:00
#if defined(_KERNEL_OPT)
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
#include "opt_syscall_debug.h"
#endif
#include <sys/param.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <compat/sunos32/sunos32.h>
#include <compat/sunos32/sunos32_syscall.h>
Add sunos32_setregs(), thus making sunos32 compile again.
2001-09-21 00:52:26 +04:00
#include <compat/sunos32/sunos32_exec.h>
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
extern int nsunos32_sysent;
extern struct sysent sunos32_sysent[];
#ifdef SYSCALL_DEBUG
extern const char * const sunos32_syscallnames[];
#endif
extern char sunos_sigcode[], sunos_esigcode[];
void syscall __P((void));
add support for non-executable mappings (where the hardware allows this) and make the stack and heap non-executable by default. the changes fall into two basic catagories: - pmap and trap-handler changes. these are all MD: = alpha: we already track per-page execute permission with the (software) PG_EXEC bit, so just have the trap handler pay attention to it. = i386: use a new GDT segment for %cs for processes that have no executable mappings above a certain threshold (currently the bottom of the stack). track per-page execute permission with the last unused PTE bit. = powerpc/ibm4xx: just use the hardware exec bit. = powerpc/oea: we already track per-page exec bits, but the hardware only implements non-exec mappings at the segment level. so track the number of executable mappings in each segment and turn on the no-exec segment bit iff the count is 0. adjust the trap handler to deal. = sparc (sun4m): fix our use of the hardware protection bits. fix the trap handler to recognize text faults. = sparc64: split the existing unified TSB into data and instruction TSBs, and only load TTEs into the appropriate TSB(s) for the permissions. fix the trap handler to check for execute permission. = not yet implemented: amd64, hppa, sh5 - changes in all the emulations that put a signal trampoline on the stack. instead, we now put the trampoline into a uvm_aobj and map that into the process separately. originally from openbsd, adapted for netbsd by me.
2003-08-24 21:52:28 +04:00
struct uvm_object *emul_sunos32_object;
Add missing const.
2002-05-05 12:23:03 +04:00
const struct emul emul_sunos = {
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
"sunos32",
"/emul/sunos",
handle __HAVE_MINIMAL_EMUL
2002-11-10 23:59:03 +03:00
#ifndef __HAVE_MINIMAL_EMUL
Removed obsoletes EMUL_NO_BSD_ASYNCIO_PIPE and EMUL_NO_SIGIO_ON_READ flags. Async I/O OS specifities should now handled in OS specific code. Linux has been done, but other emulation should be handled. See case LINUX_F_SETFL in sys/compat/linux/common/linux_file.c:linux_sys_fcntl() for more details. The data that has been collected yet: Net Free Open Linux SunOS AIX OSF1 Darwin send SIGIO to write end of pipe Y N N N N N Y Y send SIGIO to read end of pipe Y Y N N N ? Y ? send SIGIO to write end of socket Y Y Y N N Y Y Y send SIGIO to read end of socket Y Y Y Y Y ? Y ?
2001-06-17 01:44:27 +04:00
0,
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
NULL,
SUNOS32_SYS_syscall,
set struct emul's nsysent to compat SYS_NSYSENT, not SYS_MAXSYSCALL
2002-11-01 22:26:21 +03:00
SUNOS32_SYS_NSYSENT,
handle __HAVE_MINIMAL_EMUL
2002-11-10 23:59:03 +03:00
#endif
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
sunos32_sysent,
#ifdef SYSCALL_DEBUG
sunos32_syscallnames,
#else
NULL,
#endif
s/sunos_sendsig/sunos32_sendsig/
2001-02-05 15:48:13 +03:00
sunos32_sendsig,
Add an e_trapsignal member to struct emul, so that emulated processes can send the appropriate signal depending on the trap type.
2001-06-18 06:00:48 +04:00
trapsignal,
Put back Emmanuel's sigfilter hooks, as decided by Core.
2003-12-20 22:01:29 +03:00
NULL,
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
sunos_sigcode,
sunos_esigcode,
add support for non-executable mappings (where the hardware allows this) and make the stack and heap non-executable by default. the changes fall into two basic catagories: - pmap and trap-handler changes. these are all MD: = alpha: we already track per-page execute permission with the (software) PG_EXEC bit, so just have the trap handler pay attention to it. = i386: use a new GDT segment for %cs for processes that have no executable mappings above a certain threshold (currently the bottom of the stack). track per-page execute permission with the last unused PTE bit. = powerpc/ibm4xx: just use the hardware exec bit. = powerpc/oea: we already track per-page exec bits, but the hardware only implements non-exec mappings at the segment level. so track the number of executable mappings in each segment and turn on the no-exec segment bit iff the count is 0. adjust the trap handler to deal. = sparc (sun4m): fix our use of the hardware protection bits. fix the trap handler to recognize text faults. = sparc64: split the existing unified TSB into data and instruction TSBs, and only load TTEs into the appropriate TSB(s) for the permissions. fix the trap handler to check for execute permission. = not yet implemented: amd64, hppa, sh5 - changes in all the emulations that put a signal trampoline on the stack. instead, we now put the trampoline into a uvm_aobj and map that into the process separately. originally from openbsd, adapted for netbsd by me.
2003-08-24 21:52:28 +04:00
&emul_sunos32_object,
Add sunos32_setregs(), thus making sunos32 compile again.
2001-09-21 00:52:26 +04:00
sunos32_setregs,
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
NULL,
NULL,
NULL,
Introduce lwp_emuldata and the associated hooks. No hook is provided for the exec case, as the emulation already has the ability to intercept that with the e_proc_exec hook. It is the responsability of the emulation to take appropriaye action about lwp_emuldata in e_proc_exec. Patch reviewed by Christos.
2003-12-20 21:22:16 +03:00
NULL,
NULL,
- Introduce a e_fault field in struct proc to provide emulation specific memory fault handler. IRIX uses irix_vm_fault, and all other emulation use NULL, which means to use uvm_fault. - While we are there, explicitely set to NULL the uninitialized fields in struct emul: e_fault and e_sysctl on most ports - e_fault is used by the trap handler, for now only on mips. In order to avoid intrusive modifications in UVM, the function pointed by e_fault does not has exactly the same protoype as uvm_fault: int uvm_fault __P((struct vm_map *, vaddr_t, vm_fault_t, vm_prot_t)); int e_fault __P((struct proc *, vaddr_t, vm_fault_t, vm_prot_t)); - In IRIX share groups, all the VM space is shared, except one page. This bounds us to have different VM spaces and synchronize modifications to the VM space accross share group members. We need an IRIX specific hook to the page fault handler in order to propagate VM space modifications caused by page faults.
2002-09-22 01:14:54 +04:00
syscall,
NULL,
NULL,
initial support for sunos binaries running on a 64 bit sparc64 kernel. some programs work, many do not yet.
2001-02-02 10:28:54 +03:00
};