d66a506616
netscape-2.0 for Linux running all the Java stuff. The scrollbars are now working, at least on my machine. (whew! :-) I'm uncomfortable with the size of this commit, but it's too inter-dependant to easily seperate out. The main changes: COMPAT_LINUX is *GONE*. Most of the code has been moved out of the i386 machine dependent section into the linux emulator itself. The int 0x80 syscall code was almost identical to the lcall 7,0 code and a minor tweak allows them to both be used with the same C code. All kernels can now just modload the lkm and it'll DTRT without having to rebuild the kernel first. Like IBCS2, you can statically compile it in with "options LINUX". A pile of new syscalls implemented, including getdents(), llseek(), readv(), writev(), msync(), personality(). The Linux-ELF libraries want to use some of these. linux_select() now obeys Linux semantics, ie: returns the time remaining of the timeout value rather than leaving it the original value. Quite a few bugs removed, including incorrect arguments being used in syscalls.. eg: mixups between passing the sigset as an int, vs passing it as a pointer and doing a copyin(), missing return values, unhandled cases, SIOC* ioctls, etc. The build for the code has changed. i386/conf/files now knows how to build linux_genassym and generate linux_assym.h on the fly. Supporting changes elsewhere in the kernel: The user-mode signal trampoline has moved from the U area to immediately below the top of the stack (below PS_STRINGS). This allows the different binary emulations to have their own signal trampoline code (which gets rid of the hardwired syscall 103 (sigreturn on BSD, syslog on Linux)) and so that the emulator can provide the exact "struct sigcontext *" argument to the program's signal handlers. The sigstack's "ss_flags" now uses SS_DISABLE and SS_ONSTACK flags, which have the same values as the re-used SA_DISABLE and SA_ONSTACK which are intended for sigaction only. This enables the support of a SA_RESETHAND flag to sigaction to implement the gross SYSV and Linux SA_ONESHOT signal semantics where the signal handler is reset when it's triggered. makesyscalls.sh no longer appends the struct sysentvec on the end of the generated init_sysent.c code. It's a lot saner to have it in a seperate file rather than trying to update the structure inside the awk script. :-) At exec time, the dozen bytes or so of signal trampoline code are copied to the top of the user's stack, rather than obtaining the trampoline code the old way by getting a clone of the parent's user area. This allows Linux and native binaries to freely exec each other without getting trampolines mixed up.
299 lines
7.9 KiB
C
299 lines
7.9 KiB
C
/*-
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* Copyright (c) 1994-1995 Søren Schmidt
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software withough specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: linux_dummy.c,v 1.2 1995/11/22 07:43:44 bde Exp $
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*/
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#include <sys/param.h>
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#include <sys/sysproto.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/resourcevar.h>
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#include <i386/linux/linux.h>
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#include <i386/linux/linux_proto.h>
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int
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linux_setup(struct proc *p, struct linux_setup_args *args, int *retval)
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{
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printf("Linux-emul(%d): setup() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_break(struct proc *p, struct linux_break_args *args, int *retval)
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{
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printf("Linux-emul(%d): break() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_stat(struct proc *p, struct linux_stat_args *args, int *retval)
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{
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printf("Linux-emul(%d): stat() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_fstat(struct proc *p, struct linux_fstat_args *args, int *retval)
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{
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printf("Linux-emul(%d): fstat() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_mount(struct proc *p, struct linux_mount_args *args, int *retval)
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{
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printf("Linux-emul(%d): mount() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_umount(struct proc *p, struct linux_umount_args *args, int *retval)
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{
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printf("Linux-emul(%d): umount() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_stime(struct proc *p, struct linux_stime_args *args, int *retval)
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{
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printf("Linux-emul(%d): stime() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_ptrace(struct proc *p, struct linux_ptrace_args *args, int *retval)
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{
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printf("Linux-emul(%d): ptrace() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_stty(struct proc *p, struct linux_stty_args *args, int *retval)
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{
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printf("Linux-emul(%d): stty() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_gtty(struct proc *p, struct linux_gtty_args *args, int *retval)
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{
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printf("Linux-emul(%d): gtty() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_nice(struct proc *p, struct linux_nice_args *args, int *retval)
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{
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printf("Linux-emul(%d): nice() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_ftime(struct proc *p, struct linux_ftime_args *args, int *retval)
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{
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printf("Linux-emul(%d): ftime() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_prof(struct proc *p, struct linux_prof_args *args, int *retval)
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{
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printf("Linux-emul(%d): prof() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_phys(struct proc *p, struct linux_phys_args *args, int *retval)
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{
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printf("Linux-emul(%d): phys() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_lock(struct proc *p, struct linux_lock_args *args, int *retval)
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{
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printf("Linux-emul(%d): lock() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_mpx(struct proc *p, struct linux_mpx_args *args, int *retval)
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{
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printf("Linux-emul(%d): mpx() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_ulimit(struct proc *p, struct linux_ulimit_args *args, int *retval)
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{
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printf("Linux-emul(%d): ulimit() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_olduname(struct proc *p, struct linux_olduname_args *args, int *retval)
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{
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printf("Linux-emul(%d): olduname() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_ustat(struct proc *p, struct linux_ustat_args *args, int *retval)
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{
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printf("Linux-emul(%d): ustat() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_ioperm(struct proc *p, struct linux_ioperm_args *args, int *retval)
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{
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printf("Linux-emul(%d): ioperm() not supported\n", p->p_pid);
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return 0; /* EINVAL SOS XXX */
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}
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int
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linux_ksyslog(struct proc *p, struct linux_ksyslog_args *args, int *retval)
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{
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printf("Linux-emul(%d): ksyslog(%x) not supported\n",
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p->p_pid, args->what);
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return ENOSYS; /* EPERM - Peter - it's a root-only thing */
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}
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int
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linux_iopl(struct proc *p, struct linux_iopl_args *args, int *retval)
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{
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printf("Linux-emul(%d): iopl() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_vhangup(struct proc *p, struct linux_vhangup_args *args, int *retval)
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{
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printf("Linux-emul(%d): vhangup() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_idle(struct proc *p, struct linux_idle_args *args, int *retval)
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{
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printf("Linux-emul(%d): idle() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_vm86(struct proc *p, struct linux_vm86_args *args, int *retval)
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{
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printf("Linux-emul(%d): vm86() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_swapoff(struct proc *p, struct linux_swapoff_args *args, int *retval)
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{
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printf("Linux-emul(%d): swapoff() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_sysinfo(struct proc *p, struct linux_sysinfo_args *args, int *retval)
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{
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printf("Linux-emul(%d): sysinfo() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_clone(struct proc *p, struct linux_clone_args *args, int *retval)
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{
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printf("Linux-emul(%d): clone() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_uname(struct proc *p, struct linux_uname_args *args, int *retval)
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{
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printf("Linux-emul(%d): uname() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_modify_ldt(struct proc *p, struct linux_modify_ldt_args *args, int *retval)
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{
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printf("Linux-emul(%d): modify_ldt() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_adjtimex(struct proc *p, struct linux_adjtimex_args *args, int *retval)
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{
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printf("Linux-emul(%d): adjtimex() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_create_module(struct proc *p, struct linux_create_module_args *args, int *retval)
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{
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printf("Linux-emul(%d): create_module() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_init_module(struct proc *p, struct linux_init_module_args *args, int *retval)
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{
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printf("Linux-emul(%d): init_module() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_delete_module(struct proc *p, struct linux_delete_module_args *args, int *retval)
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{
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printf("Linux-emul(%d): delete_module() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_get_kernel_syms(struct proc *p, struct linux_get_kernel_syms_args *args, int *retval)
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{
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printf("Linux-emul(%d): get_kernel_syms() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_quotactl(struct proc *p, struct linux_quotactl_args *args, int *retval)
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{
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printf("Linux-emul(%d): quotactl() not supported\n", p->p_pid);
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return ENOSYS;
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}
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int
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linux_bdflush(struct proc *p, struct linux_bdflush_args *args, int *retval)
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{
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printf("Linux-emul(%d): bdflush() not supported\n", p->p_pid);
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return ENOSYS;
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}
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