body of reaper(), right before the call to uvm_exit(). cpu_wait() must
be done before uvm_exit() because the resources it frees might be located
in the PCB.
count is 0, wait for use count to drain before finishing the close.
This is necessary in order for multiple processes to safely share file
descriptor tables.
rather than just "value / sizeof (char *)". While in these cases the latter
works as well, the former's a better example for other uses to copy (since
it handles the non-integral multiple case correctly).
1. the mask is passed by value, not by reference
2. compare the rest of the mask bits not the valid ones
3. return 0, not the current fd's flags.
Now appletviewer works on an inet display. It will not work
with :0 because /tmp/.X11-pipe/X0 is a named pipe, not a
socket like our /tmp/.X11-unix/X0. Maybe I'll kludge svr4_sys_open
to return an fd to a unix socket when someone attempts to call
open on a unix socket.
version:
1. The stack_t returned before was SS_DISABLED; now we enable the stack
and return a 16K stack which is 16K under the current stack pointer.
This seems to be what solaris does.
2. Preserve uc_link.
would appear that overloading the argument this way is used by SVR4 to `fall
off' the main context (uc_link being NULL) after a function set up using
makecontext() returns.
RLIM_INFINITY like we do. Java uses rlim_max to allocate a data structure
per file descriptor.
what we do is bogus anyway, because:
setrlimit(RLIM_NOFILE, {RLIM_INFINITY, RLIM_INFINITY}}
sets the limit to { maxfiles, maxfiles }
I undestand that this is so that if we change maxfiles via sysctl, processes
can still use the new maximum, but it is probably more appropriate to return
the current value of maxfiles (and maxproc) at every getrlimit call, even
if the current value for either is RLIM_INFINITY.
Anyway, java now works on the the sparc, on the i386 loses on setcontext().
sparc, and unknown for the rest. Also make sure that the string is terminated
properly and the length is returned as the specification calls. Maybe sometime
we can read the prom on the sparc and return the actual model.
* Increase the size of sigset_t to accomodate 128 signals -- adding new
versions of sys_setprocmask(), sys_sigaction(), sys_sigpending() and
sys_sigsuspend() to handle the changed arguments.
* Abstract the guts of sys_sigaltstack(), sys_setprocmask(), sys_sigaction(),
sys_sigpending() and sys_sigsuspend() into separate functions, and call them
from all the emulations rather than hard-coding everything. (Avoids uses
the stackgap crap for these system calls.)
* Add a new flag (p_checksig) to indicate that a process may have signals
pending and userret() needs to do the full (slow) check.
* Eliminate SAS_ALTSTACK; it's exactly the inverse of SS_DISABLE.
* Correct emulation bugs with restoring SS_ONSTACK.
* Make the signal mask in the sigcontext always use the emulated mask format.
* Store signals internally in sigaction structures, rather than maintaining a
bunch of little sigsets for each SA_* bit.
* Keep track of where we put the signal trampoline, rather than figuring it out
in *_sendsig().
* Issue a warning when a non-emulated sigaction bit is observed.
* Add missing emulated signals, and a native SIGPWR (currently not used).
* Implement the `not reset when caught' semantics for relevant signals.
Note: Only code touched by the i386 port has been modified. Other ports and
emulations need to be updated.
the individual emulated readdirs must check.
Since netbsd and freebsd return EINVAL for the error
and I don't know what the other platforms do, return
EINVAL for them too.
NetBSD pread(2) and pwrite(2). These still require indirection because
the arguments need to be converted to the correct types.
Delete svr4_sys_pread64() and svr4_sys_pwrite64(), since the arguments
for these calls do not need conversion, and the syscall switch calls
the native NetBSD system calls directly.
through SVR4 emulation layers to handle SVR4's pread64(2) and pwrite64(2),
since NetBSD's arguments are the same as the SVR4 64-bit system call
arguments.
UVM was written by chuck cranor <chuck@maria.wustl.edu>, with some
minor portions derived from the old Mach code. i provided some help
getting swap and paging working, and other bug fixes/ideas. chuck
silvers <chuq@chuq.com> also provided some other fixes.
this is the rest of the MI portion changes.
this will be KNF'd shortly. :-)
- Fix memcntl()
- Fixed stat and mknod syscalls to properly disassemble and reassemble
dev_t values to/from emulation dev_t's
- Added pty (ptmx) subsystem at svr4net minor number 10 -- /dev/ptmx
- Implemented fork1() as fork() (should change if and when threads get
added to the system)
- fixed spellings in disclaimer in svr4_net.c; it looks like someone went
and did a s/nd/st/g on the whole file... yuck
- changed ptmx device to also halt on ENXIO (for pty files that exist with
no kernel pty to back them)
- fixed SVR4 setpgrp() to be a near equivalent to BSD setsid() (old
emulation didn't create a new session)
pread64(), pwrite(), pwrite64():
* The `offset' argument specifies an absolute offset within the file.
* After performing the read resp. write operation, restore the original
offset within the file.
Also, change the argument structure used by svr4_sys_prwite64() to
svr4_sys_pwrite64_args, instead of the 32-bit offset version.
to the stat(2) family and msync(2). This uses a primitive function
versioning scheme.
This reverts the libc shared library major version from 13 to 12, and
adds a few new interfaces to bring us to libc version 12.20.
From Frank van der Linden <fvdl@NetBSD.ORG>.
in 32 bits. Provide an error message to the user, and return EINVAL.
Also, pay attention to the EOF flag from VOP_READDIR. Correct a
misspell in a panic message.
directory and running out of space in the dest buffer, off should point to the
current entry (which was not saved) and not to the next.
I discovered this bug using linux and SunOS emulation over NFS, but seems to
affect other emulations as well.
thorpej