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freebsd-dev/sys/i386/linux/linux_sysent.c

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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.
1995-06-25 17:32:43 +00:00
/*-
* Copyright (c) 1994-1995 S<EFBFBD>ren 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.
*
All: Changed vnodep -> vp for consistency with the rest of the kernel, and changed iparams -> imgp for brevity. kern_exec.c: Explicitly initialized some additional parts of the image_params struct to avoid bzeroing it. Rewrote the set-id code to reduce the number of logical tests. The rewrite exposed a mostly benign bug in the algorithm: traced set-id images would get ktracing disabled even if the set-id didn't happen for other reasons.
1995-11-06 12:52:37 +00:00
* $Id: linux_sysent.c,v 1.1 1995/06/25 17:32:43 sos Exp $
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.
1995-06-25 17:32:43 +00:00
*/
#include <i386/linux/linux.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/sysent.h>
#include <sys/imgact.h>
#include <sys/errno.h>
#include <sys/signal.h>
extern int access();
extern int acct();
extern int linux_adjtimex();
extern int linux_alarm();
extern int linux_bdflush();
extern int linux_break();
extern int linux_brk();
extern int chdir();
extern int chmod();
extern int chown();
extern int chroot();
extern int linux_clone();
extern int close();
extern int linux_creat();
extern int linux_create_module();
extern int linux_delete_module();
extern int dup();
extern int dup2();
extern int execve();
extern int exit();
extern int fchdir();
extern int fchmod();
extern int fchown();
extern int linux_fcntl();
extern int linux_fork();
extern int linux_fstat();
extern int linux_fstatfs();
extern int fsync();
extern int linux_ftime();
extern int oftruncate();
extern int linux_get_kernel_syms();
extern int getegid();
extern int geteuid();
extern int getgid();
extern int getgroups();
extern int getitimer();
extern int linux_getpgid();
extern int getpgrp();
extern int getpid();
extern int getppid();
extern int getpriority();
extern int ogetrlimit();
extern int getrusage();
extern int gettimeofday();
extern int getuid();
extern int linux_gtty();
extern int linux_idle();
extern int linux_init_module();
extern int linux_ioctl();
extern int linux_ioperm();
extern int linux_iopl();
extern int linux_ipc();
extern int linux_kill();
extern int link();
extern int linux_lock();
extern int linux_lseek();
extern int ostat();
extern int mkdir();
extern int mknod();
extern int linux_mmap();
extern int linux_modify_ldt();
extern int linux_mount();
extern int mprotect();
extern int linux_mpx();
extern int munmap();
extern int linux_newfstat();
extern int linux_newlstat();
extern int linux_newstat();
extern int linux_newuname();
extern int linux_nice();
extern int linux_olduname();
extern int linux_open();
extern int linux_pause();
extern int linux_phys();
extern int linux_pipe();
extern int linux_prof();
extern int profil();
extern int linux_ptrace();
extern int linux_quotactl();
extern int read();
extern int linux_readdir();
extern int readlink();
extern int reboot();
extern int rename();
extern int rmdir();
extern int linux_select();
extern int setdomainname();
extern int setgid();
extern int setgroups();
extern int osethostname();
extern int setitimer();
extern int setpgid();
extern int setpriority();
extern int setregid();
extern int setreuid();
extern int osetrlimit();
extern int setsid();
extern int settimeofday();
extern int setuid();
extern int sigreturn();
extern int linux_setup();
extern int linux_sigaction();
extern int linux_siggetmask();
extern int linux_signal();
extern int linux_sigpending();
extern int linux_sigprocmask();
extern int linux_sigreturn();
extern int linux_sigsetmask();
extern int linux_sigsuspend();
extern int linux_socketcall();
extern int linux_stat();
extern int linux_statfs();
extern int linux_stime();
extern int linux_stty();
extern int linux_swapoff();
extern int swapon();
extern int symlink();
extern int sync();
extern int linux_sysinfo();
extern int linux_syslog();
extern int linux_time();
extern int linux_times();
extern int otruncate();
extern int linux_ulimit();
extern int umask();
extern int linux_umount();
extern int linux_uname();
extern int unlink();
extern int linux_uselib();
extern int linux_ustat();
extern int linux_utime();
extern int linux_vhangup();
extern int linux_vm86();
extern int linux_wait4();
extern int linux_waitpid();
extern int write();
static struct sysent linux_sysent[] = {
0, linux_setup, /* 0 */
1, exit, /* 1 */
0, linux_fork, /* 2 */
3, read, /* 3 */
3, write, /* 4 */
3, linux_open, /* 5 */
1, close, /* 6 */
3, linux_waitpid, /* 7 */
2, linux_creat, /* 8 */
2, link, /* 9 */
1, unlink, /* 10 */
3, execve, /* 11 */
1, chdir, /* 12 */
1, linux_time, /* 13 */
3, mknod, /* 14 */
2, chmod, /* 15 */
3, chown, /* 16 */
1, linux_break, /* 17 */
2, linux_stat, /* 18 */
3, linux_lseek, /* 19 */
0, getpid, /* 20 */
5, linux_mount, /* 21 */
1, linux_umount, /* 22 */
1, setuid, /* 23 */
0, getuid, /* 24 */
1, linux_stime, /* 25 */
4, linux_ptrace, /* 26 */
1, linux_alarm, /* 27 */
2, linux_fstat, /* 28 */
0, linux_pause, /* 29 */
2, linux_utime, /* 30 */
0, linux_stty, /* 31 */
0, linux_gtty, /* 32 */
2, access, /* 33 */
1, linux_nice, /* 34 */
0, linux_ftime, /* 35 */
0, sync, /* 36 */
2, linux_kill, /* 37 */
2, rename, /* 38 */
2, mkdir, /* 39 */
1, rmdir, /* 40 */
1, dup, /* 41 */
1, linux_pipe, /* 42 */
1, linux_times, /* 43 */
0, linux_prof, /* 44 */
1, linux_brk, /* 45 */
1, setgid, /* 46 */
0, getgid, /* 47 */
2, linux_signal, /* 48 */
0, geteuid, /* 49 */
0, getegid, /* 50 */
0, acct, /* 51 */
0, linux_phys, /* 52 */
0, linux_lock, /* 53 */
3, linux_ioctl, /* 54 */
3, linux_fcntl, /* 55 */
0, linux_mpx, /* 56 */
2, setpgid, /* 57 */
0, linux_ulimit, /* 58 */
1, linux_olduname, /* 59 */
1, umask, /* 60 */
1, chroot, /* 61 */
2, linux_ustat, /* 62 */
2, dup2, /* 63 */
0, getppid, /* 64 */
0, getpgrp, /* 65 */
0, setsid, /* 66 */
3, linux_sigaction, /* 67 */
0, linux_siggetmask, /* 68 */
1, linux_sigsetmask, /* 69 */
2, setreuid, /* 70 */
2, setregid, /* 71 */
1, linux_sigsuspend, /* 72 */
1, linux_sigpending, /* 73 */
2, osethostname, /* 74 */
2, osetrlimit, /* 75 */
2, ogetrlimit, /* 76 */
2, getrusage, /* 77 */
2, gettimeofday, /* 78 */
2, settimeofday, /* 79 */
2, getgroups, /* 80 */
2, setgroups, /* 81 */
1, linux_select, /* 82 */
2, symlink, /* 83 */
2, ostat, /* 84 */
3, readlink, /* 85 */
1, linux_uselib, /* 86 */
1, swapon, /* 87 */
3, reboot, /* 88 */
3, linux_readdir, /* 89 */
1, linux_mmap, /* 90 */
2, munmap, /* 91 */
2, otruncate, /* 92 */
2, oftruncate, /* 93 */
2, fchmod, /* 94 */
3, fchown, /* 95 */
2, getpriority, /* 96 */
3, setpriority, /* 97 */
0, profil, /* 98 */
2, linux_statfs, /* 99 */
2, linux_fstatfs, /* 100 */
3, linux_ioperm, /* 101 */
2, linux_socketcall, /* 102 */
3, linux_syslog, /* 103 */
3, setitimer, /* 104 */
2, getitimer, /* 105 */
2, linux_newstat, /* 106 */
2, linux_newlstat, /* 107 */
2, linux_newfstat, /* 108 */
2, linux_uname, /* 109 */
1, linux_iopl, /* 110 */
0, linux_vhangup, /* 111 */
0, linux_idle, /* 112 */
1, linux_vm86, /* 113 */
4, linux_wait4, /* 114 */
1, linux_swapoff, /* 115 */
1, linux_sysinfo, /* 116 */
4, linux_ipc, /* 117 */
1, fsync, /* 118 */
1, linux_sigreturn, /* 119 */
0, linux_clone, /* 120 */
2, setdomainname, /* 121 */
1, linux_newuname, /* 122 */
3, linux_modify_ldt, /* 123 */
1, linux_adjtimex, /* 124 */
3, mprotect, /* 125 */
3, linux_sigprocmask, /* 126 */
2, linux_create_module, /* 127 */
4, linux_init_module, /* 128 */
1, linux_delete_module, /* 129 */
1, linux_get_kernel_syms, /* 130 */
0, linux_quotactl, /* 131 */
1, linux_getpgid, /* 132 */
1, fchdir, /* 133 */
0, linux_bdflush, /* 134 */
};
int bsd_to_linux_errno[ELAST] = {
0, 1, 2, 3, 4, 5, 6, 7, 8, 9,
10, 35, 12, 13, 14, 15, 16, 17, 18, 19,
20, 21, 22, 23, 24, 25, 26, 27, 28, 29,
30, 31, 32, 33, 34, 11,115,114, 88, 89,
90, 91, 92, 93, 94, 95, 96, 97, 98, 99,
100,101,102,103,104,105,106,107,108,109,
110,111, 40, 36,112,113, 39, 11, 87,122,
116, 66, 6, 6, 6, 6, 6, 37, 38, 9,
6,
};
int bsd_to_linux_signal[NSIG] = {
0, LINUX_SIGHUP, LINUX_SIGINT, LINUX_SIGQUIT,
LINUX_SIGILL, LINUX_SIGTRAP, LINUX_SIGABRT, 0,
LINUX_SIGFPE, LINUX_SIGKILL, LINUX_SIGBUS, LINUX_SIGSEGV,
0, LINUX_SIGPIPE, LINUX_SIGALRM, LINUX_SIGTERM,
LINUX_SIGURG, LINUX_SIGSTOP, LINUX_SIGTSTP, LINUX_SIGCONT,
LINUX_SIGCHLD, LINUX_SIGTTIN, LINUX_SIGTTOU, LINUX_SIGIO,
LINUX_SIGXCPU, LINUX_SIGXFSZ, LINUX_SIGVTALRM, LINUX_SIGPROF,
LINUX_SIGWINCH, 0, LINUX_SIGUSR1, LINUX_SIGUSR2
};
int linux_to_bsd_signal[LINUX_NSIG] = {
0, SIGHUP, SIGINT, SIGQUIT, SIGILL, SIGTRAP, SIGABRT, SIGEMT,
SIGFPE, SIGKILL, SIGUSR1, SIGSEGV, SIGUSR2, SIGPIPE, SIGALRM, SIGTERM,
SIGBUS, SIGCHLD, SIGCONT, SIGSTOP, SIGTSTP, SIGTTIN, SIGTTOU, SIGIO,
SIGXCPU, SIGXFSZ, SIGVTALRM, SIGPROF, SIGWINCH, SIGURG, SIGURG, 0
};
All: Changed vnodep -> vp for consistency with the rest of the kernel, and changed iparams -> imgp for brevity. kern_exec.c: Explicitly initialized some additional parts of the image_params struct to avoid bzeroing it. Rewrote the set-id code to reduce the number of logical tests. The rewrite exposed a mostly benign bug in the algorithm: traced set-id images would get ktracing disabled even if the set-id didn't happen for other reasons.
1995-11-06 12:52:37 +00:00
int linux_fixup(int **stack_base, struct image_params *imgp)
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.
1995-06-25 17:32:43 +00:00
{
int *argv, *envp;
argv = *stack_base;
All: Changed vnodep -> vp for consistency with the rest of the kernel, and changed iparams -> imgp for brevity. kern_exec.c: Explicitly initialized some additional parts of the image_params struct to avoid bzeroing it. Rewrote the set-id code to reduce the number of logical tests. The rewrite exposed a mostly benign bug in the algorithm: traced set-id images would get ktracing disabled even if the set-id didn't happen for other reasons.
1995-11-06 12:52:37 +00:00
envp = *stack_base + (imgp->argc + 1);
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.
1995-06-25 17:32:43 +00:00
(*stack_base)--;
**stack_base = (int)envp;
(*stack_base)--;
**stack_base = (int)argv;
(*stack_base)--;
All: Changed vnodep -> vp for consistency with the rest of the kernel, and changed iparams -> imgp for brevity. kern_exec.c: Explicitly initialized some additional parts of the image_params struct to avoid bzeroing it. Rewrote the set-id code to reduce the number of logical tests. The rewrite exposed a mostly benign bug in the algorithm: traced set-id images would get ktracing disabled even if the set-id didn't happen for other reasons.
1995-11-06 12:52:37 +00:00
**stack_base = (int)imgp->argc;
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.
1995-06-25 17:32:43 +00:00
}
struct sysentvec linux_sysvec = {
sizeof (linux_sysent) / sizeof(linux_sysent[0]),
linux_sysent,
0xff,
NSIG,
bsd_to_linux_signal,
ELAST,
bsd_to_linux_errno,
linux_fixup
};
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