5c7bebf961
- Threads lifetime cycle, in particular, counting of the threads in the process, and interlocking with process mutex and thread lock. The main reason of this is that turnstile locks are after thread locks, so you e.g. cannot unlock blockable mutex (think process mutex) while owning thread lock. - Virtual and profiling itimers, since the timers activation is done from the clock interrupt context. Replace the p_slock by p_itimmtx and PROC_ITIMLOCK(). - Profiling code (profil(2)), for similar reason. Replace the p_slock by p_profmtx and PROC_PROFLOCK(). - Resource usage accounting. Need for the spinlock there is subtle, my understanding is that spinlock blocks context switching for the current thread, which prevents td_runtime and similar fields from changing (updates are done at the mi_switch()). Replace the p_slock by p_statmtx and PROC_STATLOCK(). The split is done mostly for code clarity, and should not affect scalability. Tested by: pho Sponsored by: The FreeBSD Foundation MFC after: 1 week |
||
|---|---|---|
| .. | ||
| imgact_svr4.c | ||
| Makefile | ||
| README | ||
| svr4_acl.h | ||
| svr4_dirent.h | ||
| svr4_errno.h | ||
| svr4_exec.h | ||
| svr4_fcntl.c | ||
| svr4_fcntl.h | ||
| svr4_filio.c | ||
| svr4_filio.h | ||
| svr4_fuser.h | ||
| svr4_hrt.h | ||
| svr4_ioctl.c | ||
| svr4_ioctl.h | ||
| svr4_ipc.c | ||
| svr4_ipc.h | ||
| svr4_misc.c | ||
| svr4_mman.h | ||
| svr4_proto.h | ||
| svr4_resource.c | ||
| svr4_resource.h | ||
| svr4_siginfo.h | ||
| svr4_signal.c | ||
| svr4_signal.h | ||
| svr4_socket.c | ||
| svr4_socket.h | ||
| svr4_sockio.c | ||
| svr4_sockio.h | ||
| svr4_sockmod.h | ||
| svr4_stat.c | ||
| svr4_stat.h | ||
| svr4_statvfs.h | ||
| svr4_stream.c | ||
| svr4_stropts.h | ||
| svr4_syscall.h | ||
| svr4_syscallnames.c | ||
| svr4_sysconfig.h | ||
| svr4_sysent.c | ||
| svr4_systeminfo.h | ||
| svr4_sysvec.c | ||
| svr4_termios.c | ||
| svr4_termios.h | ||
| svr4_time.h | ||
| svr4_timod.h | ||
| svr4_types.h | ||
| svr4_ucontext.h | ||
| svr4_ulimit.h | ||
| svr4_ustat.h | ||
| svr4_util.h | ||
| svr4_utsname.h | ||
| svr4_wait.h | ||
| svr4.h | ||
| syscalls.conf | ||
| syscalls.master | ||
| TO-DO | ||
This is a SysVR4 emulator derived from work done as part of the NetBSD
Project by Christos Zoulas. It has been ported to FreeBSD by Mark Newton.
To use it:
1. Choose one of:
a. Add "device streams" to your kernel config file and rebuild,
reboot; or
b. Build and install the streams module in /sys/modules/streams
2. Build and install the svr4 module in /sys/modules/svr4
3. Type "kldload svr4" to start it up.
4. Grab compat_sol26.tar.gz or compat_svr4.tar.gz from
http://www.freebsd.org/~newton/freebsd-svr4 and install them in
/compat/svr4
5. Run "sh SVR4_MAKEDEV all" in /compat/svr4/dev
6. Mount a Solaris/x86 v2.6 or v7 CD-ROM on /cdrom (also works with
v2.4 and v2.5.1, but you need different symlinks in /compat/svr4)
7. Brand any executables you want to run, and/or set the
kern.fallback_elf_brand sysctl to 'SVR4' to establish this as the
default emulator for unbranded executables.
8. See if your SysVR4 programs work.
It's early days yet, folks -- You'll probably have trouble getting 100%
functionality out of most things (specifically, poll() on a socket doesn't
look like it works at the moment, so Netscape doesn't work (among other
things)). Patches will be appreciated.
- Mark Newton
newton@atdot.dotat.org
$FreeBSD$