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NetBSD/sys/compat/aoutm68k/aoutm68k_exec.c

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Allow syscall_establish() to install new syscalls when the existing entry-point is either sys_nomodule or sys_nosys. Update the makesyscalls.sh script to create a const array of bits to allow syscall_disestablish() to properly restore the original entry-point. Update all the initializers of struct emul to initialize the pointer to the bit array struct emul. XXX Regen of all files created by makesyscalls.sh will come soon, XXX followed by a kernel version bump (since struct emul is being XXX modified). This commit should address PR kern/45781 and also removes the need for the work-around for that PR in file sys/arch/usermode/modules/syscallemu/syscallemu.c
2018-08-11 00:44:58 +03:00
/* $NetBSD: aoutm68k_exec.c,v 1.30 2018/08/10 21:44:58 pgoyette Exp $ */
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
/*-
* Copyright (c) 2000 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Steve C. Woodford.
*
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
add RCSIDs (including regeneration of files as appropriate)
2001-11-13 05:07:52 +03:00
#include <sys/cdefs.h>
Allow syscall_establish() to install new syscalls when the existing entry-point is either sys_nomodule or sys_nosys. Update the makesyscalls.sh script to create a const array of bits to allow syscall_disestablish() to properly restore the original entry-point. Update all the initializers of struct emul to initialize the pointer to the bit array struct emul. XXX Regen of all files created by makesyscalls.sh will come soon, XXX followed by a kernel version bump (since struct emul is being XXX modified). This commit should address PR kern/45781 and also removes the need for the work-around for that PR in file sys/arch/usermode/modules/syscallemu/syscallemu.c
2018-08-11 00:44:58 +03:00
__KERNEL_RCSID(0, "$NetBSD: aoutm68k_exec.c,v 1.30 2018/08/10 21:44:58 pgoyette 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 cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
#include "opt_syscall_debug.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/exec.h>
#include <sys/signalvar.h>
Declare extern syscallnames in a header.
2009-06-03 03:21:37 +04:00
#include <sys/syscallvar.h>
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
Fix some things regarding COMPAT_NETBSD32 and limits/VM addresses. * For sparc64 and amd64, define *SIZ32 VM constants. * Add a new function pointer to struct emul, pointing at a function that will return the default VM map address. The default function is uvm_map_defaultaddr, which just uses the VM_DEFAULT_ADDRESS macro. This gives emulations control over the default map address, and allows things to be mapped at the right address (in 32bit range) for COMPAT_NETBSD32. * Add code to adjust the data and stack limits when a COMPAT_NETBSD32 or COMPAT_SVR4_32 binary is executed. * Don't use USRSTACK in kern_resource.c, use p_vmspace->vm_minsaddr instead (emulations might have set it differently) * Since this changes struct emul, bump kernel version to 3.99.2 Tested on amd64, compile-tested on sparc64.
2005-03-26 08:12:34 +03:00
#include <uvm/uvm_extern.h>
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
#include <compat/aoutm68k/aoutm68k_syscall.h>
- 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
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
extern struct sysent aoutm68k_sysent[];
Allow syscall_establish() to install new syscalls when the existing entry-point is either sys_nomodule or sys_nosys. Update the makesyscalls.sh script to create a const array of bits to allow syscall_disestablish() to properly restore the original entry-point. Update all the initializers of struct emul to initialize the pointer to the bit array struct emul. XXX Regen of all files created by makesyscalls.sh will come soon, XXX followed by a kernel version bump (since struct emul is being XXX modified). This commit should address PR kern/45781 and also removes the need for the work-around for that PR in file sys/arch/usermode/modules/syscallemu/syscallemu.c
2018-08-11 00:44:58 +03:00
extern const uint32_t aoutm68k_sysent_nomodbits[];
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
extern char sigcode[], esigcode[];
Remove all the __P
2007-12-04 21:40:07 +03:00
void aoutm68k_syscall_intern(struct proc *);
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
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_netbsd_aoutm68k_object;
Make the emulations, exec formats, coredump, NFS, and the NFS server into modules. By and large this commit: - shuffles header files and ifdefs - splits code out where necessary to be modular - adds module glue for each of the components - adds/replaces hooks for things that can be installed at runtime
2008-11-19 21:35:57 +03:00
struct emul emul_netbsd_aoutm68k = {
many changes for COMPAT_LINUX: - update the linux syscall table for each platform. - support new-style (NPTL) linux pthreads on all platforms. clone() with CLONE_THREAD uses 1 process with many LWPs instead of separate processes. - move the contents of sys__lwp_setprivate() into a new lwp_setprivate() and use that everywhere. - update linux_release[] and linux32_release[] to "2.6.18". - adjust placement of emul fork/exec/exit hooks as needed and adjust other emul code to match. - convert all struct emul definitions to use named initializers. - change the pid allocator to allow multiple pids to refer to the same proc. - remove a few fields from struct proc that are no longer needed. - disable the non-functional "vdso" code in linux32/amd64, glibc works fine without it. - fix a race in the futex code where we could miss a wakeup after a requeue operation. - redo futex locking to be a little more efficient.
2010-07-07 05:30:32 +04:00
.e_name = "aoutm68k",
compat_aoutm68k doesn't require alternative emul path lookup.
2010-10-15 20:51:09 +04:00
.e_path = NULL,
handle __HAVE_MINIMAL_EMUL
2002-11-10 23:59:03 +03:00
#ifndef __HAVE_MINIMAL_EMUL
many changes for COMPAT_LINUX: - update the linux syscall table for each platform. - support new-style (NPTL) linux pthreads on all platforms. clone() with CLONE_THREAD uses 1 process with many LWPs instead of separate processes. - move the contents of sys__lwp_setprivate() into a new lwp_setprivate() and use that everywhere. - update linux_release[] and linux32_release[] to "2.6.18". - adjust placement of emul fork/exec/exit hooks as needed and adjust other emul code to match. - convert all struct emul definitions to use named initializers. - change the pid allocator to allow multiple pids to refer to the same proc. - remove a few fields from struct proc that are no longer needed. - disable the non-functional "vdso" code in linux32/amd64, glibc works fine without it. - fix a race in the futex code where we could miss a wakeup after a requeue operation. - redo futex locking to be a little more efficient.
2010-07-07 05:30:32 +04:00
.e_flags = EMUL_HAS_SYS___syscall,
.e_errno = NULL,
.e_nosys = AOUTM68K_SYS_syscall,
.e_nsysent = AOUTM68K_SYS_NSYSENT,
handle __HAVE_MINIMAL_EMUL
2002-11-10 23:59:03 +03:00
#endif
many changes for COMPAT_LINUX: - update the linux syscall table for each platform. - support new-style (NPTL) linux pthreads on all platforms. clone() with CLONE_THREAD uses 1 process with many LWPs instead of separate processes. - move the contents of sys__lwp_setprivate() into a new lwp_setprivate() and use that everywhere. - update linux_release[] and linux32_release[] to "2.6.18". - adjust placement of emul fork/exec/exit hooks as needed and adjust other emul code to match. - convert all struct emul definitions to use named initializers. - change the pid allocator to allow multiple pids to refer to the same proc. - remove a few fields from struct proc that are no longer needed. - disable the non-functional "vdso" code in linux32/amd64, glibc works fine without it. - fix a race in the futex code where we could miss a wakeup after a requeue operation. - redo futex locking to be a little more efficient.
2010-07-07 05:30:32 +04:00
.e_sysent = aoutm68k_sysent,
Allow syscall_establish() to install new syscalls when the existing entry-point is either sys_nomodule or sys_nosys. Update the makesyscalls.sh script to create a const array of bits to allow syscall_disestablish() to properly restore the original entry-point. Update all the initializers of struct emul to initialize the pointer to the bit array struct emul. XXX Regen of all files created by makesyscalls.sh will come soon, XXX followed by a kernel version bump (since struct emul is being XXX modified). This commit should address PR kern/45781 and also removes the need for the work-around for that PR in file sys/arch/usermode/modules/syscallemu/syscallemu.c
2018-08-11 00:44:58 +03:00
.e_nomodbits = aoutm68k_sysent_nomodbits,
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
#ifdef SYSCALL_DEBUG
many changes for COMPAT_LINUX: - update the linux syscall table for each platform. - support new-style (NPTL) linux pthreads on all platforms. clone() with CLONE_THREAD uses 1 process with many LWPs instead of separate processes. - move the contents of sys__lwp_setprivate() into a new lwp_setprivate() and use that everywhere. - update linux_release[] and linux32_release[] to "2.6.18". - adjust placement of emul fork/exec/exit hooks as needed and adjust other emul code to match. - convert all struct emul definitions to use named initializers. - change the pid allocator to allow multiple pids to refer to the same proc. - remove a few fields from struct proc that are no longer needed. - disable the non-functional "vdso" code in linux32/amd64, glibc works fine without it. - fix a race in the futex code where we could miss a wakeup after a requeue operation. - redo futex locking to be a little more efficient.
2010-07-07 05:30:32 +04:00
.e_syscallnames = syscallnames,
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
#endif
many changes for COMPAT_LINUX: - update the linux syscall table for each platform. - support new-style (NPTL) linux pthreads on all platforms. clone() with CLONE_THREAD uses 1 process with many LWPs instead of separate processes. - move the contents of sys__lwp_setprivate() into a new lwp_setprivate() and use that everywhere. - update linux_release[] and linux32_release[] to "2.6.18". - adjust placement of emul fork/exec/exit hooks as needed and adjust other emul code to match. - convert all struct emul definitions to use named initializers. - change the pid allocator to allow multiple pids to refer to the same proc. - remove a few fields from struct proc that are no longer needed. - disable the non-functional "vdso" code in linux32/amd64, glibc works fine without it. - fix a race in the futex code where we could miss a wakeup after a requeue operation. - redo futex locking to be a little more efficient.
2010-07-07 05:30:32 +04:00
.e_sendsig = sendsig,
.e_trapsignal = trapsignal,
.e_sigcode = sigcode,
.e_esigcode = esigcode,
.e_sigobject = &emul_netbsd_aoutm68k_object,
.e_setregs = setregs,
.e_proc_exec = NULL,
.e_proc_fork = NULL,
.e_proc_exit = NULL,
.e_lwp_fork = NULL,
.e_lwp_exit = NULL,
.e_syscall_intern = aoutm68k_syscall_intern,
.e_sysctlovly = NULL,
.e_vm_default_addr = uvm_default_mapaddr,
.e_usertrap = NULL,
.e_ucsize = 0,
.e_startlwp = NULL
Initial cut of COMPAT_AOUT_M68K. This gets most existing m68k a.out binaries working with m68k ELF kernels. There are still some remaining ABI issues to track down; most notably, some ioctl(2) calls are affected by the change.
2000-12-02 23:40:03 +03:00
};