First incarnation of our Linux emulator or rather compatibility code.

This first shot only incorporaties so much functionality that DOOM
can run (the X version), signal handling is VERY weak, so is many
other things. But it meets my milestone number one (you guessed it
- running DOOM).

Uses /compat/linux as prefix for loading shared libs, so it won't
conflict with our own libs.

Kernel must be compiled with "options COMPAT_LINUX" for this to work.

1 files changed, 316 insertions, 0 deletions

diff --git a/sys/alpha/linux/linux_dummy.c b/sys/alpha/linux/linux_dummy.c
new file mode 100644
index 0000000..13288ac
--- /dev/null
+++ b/sys/alpha/linux/linux_dummy.c
@@ -0,0 +1,316 @@
+/*-
+ * Copyright (c) 1994-1995 Søren Schmidt
+ * 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 
+ *    in this position and unchanged.
+ * 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 withough 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.
+ *
+ *  $Id: linux_dummy.c,v 1.3 1995/06/08 13:50:52 sos Exp $
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/proc.h>
+#include <sys/resourcevar.h>
+#include <sys/errno.h>
+#include <vm/vm.h>
+
+int
+linux_setup(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): setup() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_break(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): break() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_stat(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): stat() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_fstat(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): fstat() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_mount(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): mount() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_umount(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): umount() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_stime(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): stime() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_ptrace(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): ptrace() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_pause(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): pause() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_stty(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): stty() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_gtty(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): gtty() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_nice(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): nice() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_ftime(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): ftime() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_prof(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): prof() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_signal(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): signal() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_phys(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): phys() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_lock(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): lock() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_mpx(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): mpx() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_ulimit(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): ulimit() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_olduname(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): olduname() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_ustat(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): ustat() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_ioperm(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): ioperm() not supported\n", p->p_pid);
+    return 0; /* EINVAL SOS XXX */
+}
+
+int
+linux_syslog(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): syslog() not supported (BSD sigreturn)\n",p->p_pid);
+    return sigreturn(p, args, retval);
+}
+
+int
+linux_iopl(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): iopl() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_vhangup(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): vhangup() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_idle(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): idle() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_vm86(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): vm86() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_swapoff(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): swapoff() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_sysinfo(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): sysinfo() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_sigreturn(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): sigreturn() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_clone(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): clone() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_uname(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): uname() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_modify_ldt(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): modify_ldt() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_adjtimex(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): adjtimex() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_create_module(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): create_module() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_init_module(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): init_module() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_delete_module(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): delete_module() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_get_kernel_syms(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): get_kernel_syms() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_quotactl(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): quotactl() not supported\n", p->p_pid);
+    return ENOSYS;
+}
+
+int
+linux_bdflush(struct proc *p, void *args, int *retval)
+{
+    printf("Linux-emul(%d): bdflush() not supported\n", p->p_pid);
+    return ENOSYS;
+}