Commit graph

54 commits

Author SHA1 Message Date
David van Moolenbroek
c539fea347 activate new ptrace test, too 2009-11-09 09:26:09 +00:00
David van Moolenbroek
a07f8d7646 Fix ptrace bug when reattaching to a detached process 2009-11-09 08:12:25 +00:00
David van Moolenbroek
b423d7b477 Merge of David's ptrace branch. Summary:
o Support for ptrace T_ATTACH/T_DETACH and T_SYSCALL
o PM signal handling logic should now work properly, even with debuggers
  being present
o Asynchronous PM/VFS protocol, full IPC support for senda(), and
  AMF_NOREPLY senda() flag

DETAILS

Process stop and delay call handling of PM:
o Added sys_runctl() kernel call with sys_stop() and sys_resume()
  aliases, for PM to stop and resume a process
o Added exception for sending/syscall-traced processes to sys_runctl(),
  and matching SIGKREADY pseudo-signal to PM
o Fixed PM signal logic to deal with requests from a process after
  stopping it (so-called "delay calls"), using the SIGKREADY facility
o Fixed various PM panics due to race conditions with delay calls versus
  VFS calls
o Removed special PRIO_STOP priority value
o Added SYS_LOCK RTS kernel flag, to stop an individual process from
  running while modifying its process structure

Signal and debugger handling in PM:
o Fixed debugger signals being dropped if a second signal arrives when
  the debugger has not retrieved the first one
o Fixed debugger signals being sent to the debugger more than once
o Fixed debugger signals unpausing process in VFS; removed PM_UNPAUSE_TR
  protocol message
o Detached debugger signals from general signal logic and from being
  blocked on VFS calls, meaning that even VFS can now be traced
o Fixed debugger being unable to receive more than one pending signal in
  one process stop
o Fixed signal delivery being delayed needlessly when multiple signals
  are pending
o Fixed wait test for tracer, which was returning for children that were
  not waited for
o Removed second parallel pending call from PM to VFS for any process
o Fixed process becoming runnable between exec() and debugger trap
o Added support for notifying the debugger before the parent when a
  debugged child exits
o Fixed debugger death causing child to remain stopped forever
o Fixed consistently incorrect use of _NSIG

Extensions to ptrace():
o Added T_ATTACH and T_DETACH ptrace request, to attach and detach a
  debugger to and from a process
o Added T_SYSCALL ptrace request, to trace system calls
o Added T_SETOPT ptrace request, to set trace options
o Added TO_TRACEFORK trace option, to attach automatically to children
  of a traced process
o Added TO_ALTEXEC trace option, to send SIGSTOP instead of SIGTRAP upon
  a successful exec() of the tracee
o Extended T_GETUSER ptrace support to allow retrieving a process's priv
  structure
o Removed T_STOP ptrace request again, as it does not help implementing
  debuggers properly
o Added MINIX3-specific ptrace test (test42)
o Added proper manual page for ptrace(2)

Asynchronous PM/VFS interface:
o Fixed asynchronous messages not being checked when receive() is called
  with an endpoint other than ANY
o Added AMF_NOREPLY senda() flag, preventing such messages from
  satisfying the receive part of a sendrec()
o Added asynsend3() that takes optional flags; asynsend() is now a
  #define passing in 0 as third parameter
o Made PM/VFS protocol asynchronous; reintroduced tell_fs()
o Made PM_BASE request/reply number range unique
o Hacked in a horrible temporary workaround into RS to deal with newly
  revealed RS-PM-VFS race condition triangle until VFS is asynchronous

System signal handling:
o Fixed shutdown logic of device drivers; removed old SIGKSTOP signal
o Removed is-superuser check from PM's do_procstat() (aka getsigset())
o Added sigset macros to allow system processes to deal with the full
  signal set, rather than just the POSIX subset

Miscellaneous PM fixes:
o Split do_getset into do_get and do_set, merging common code and making
  structure clearer
o Fixed setpriority() being able to put to sleep processes using an
  invalid parameter, or revive zombie processes
o Made find_proc() global; removed obsolete proc_from_pid()
o Cleanup here and there

Also included:
o Fixed false-positive boot order kernel warning
o Removed last traces of old NOTIFY_FROM code

THINGS OF POSSIBLE INTEREST

o It should now be possible to run PM at any priority, even lower than
  user processes
o No assumptions are made about communication speed between PM and VFS,
  although communication must be FIFO
o A debugger will now receive incoming debuggee signals at kill time
  only; the process may not yet be fully stopped
o A first step has been made towards making the SYSTEM task preemptible
2009-09-30 09:57:22 +00:00
Tomas Hruby
40b1d58077 Mostly a revert of r5306. com.h defines MAX_NR_TASKS value which replaces
NR_TASKS in the endpoint macros. MAX_NR_TASKS defines the maximal number of
kernel tasks. It is unlikely that we will ever need this many tasks as the goal
is not to have such a difference in the future. For now it makes possible to
remove the limiting NR_TASKS from the endpoint code.
2009-09-29 20:13:41 +00:00
Ben Gras
a5599efd9c fp might be NULL. 2009-09-21 15:23:08 +00:00
Ben Gras
a4d1b17453 ipc tests by GQ 2009-09-21 14:53:53 +00:00
David van Moolenbroek
0a27cf279e test31 fix 2009-09-20 18:15:24 +00:00
David van Moolenbroek
1fe1b219c9 test32 fix 2009-09-20 16:47:57 +00:00
Erik van der Kouwe
f92e0dafb5 Disabled check in test 28 which hard links a directory; this is nott required by POSIX and not supported (currently) by MINIX. Also corrected total number of tests. 2009-09-04 20:23:25 +00:00
Erik van der Kouwe
141e5531ad Now all tests except for 28 succeed in root mode 2009-09-04 14:14:49 +00:00
Erik van der Kouwe
9dda815067 Remove redundant line from previous patch 2009-09-04 13:36:43 +00:00
Erik van der Kouwe
e1e4d6649f Allow setuid tests 11 and 33 to run. The former still fails (but now with a meaningful error) while the latter succeeds. Only 2 tests are left borken on default MINIX, namely 11 and 28. 2009-09-04 13:18:49 +00:00
Erik van der Kouwe
5cdd995dc5 Use su to allow tests 3, 6, 17, 18, 19, 21 and 25 to work as root, making testing easier 2009-08-18 19:58:34 +00:00
David van Moolenbroek
ff6318d559 run test 41, too (oops) 2009-08-15 22:31:38 +00:00
David van Moolenbroek
323f0abdd6 Support for setitimer(ITIMER_VIRTUAL/ITIMER_PROF). New test (41) for setitimer. 2009-08-15 21:37:26 +00:00
David van Moolenbroek
062bb2c1e8 fix test14's "clever" (broken) filename generation 2009-08-15 15:13:57 +00:00
Thomas Veerman
df41717f44 Fixed case error 2009-07-22 08:59:57 +00:00
Thomas Veerman
70d25344a2 Added select test 2009-07-14 09:43:33 +00:00
David van Moolenbroek
f15d1fb13d Fix race condition in test 25 2009-07-09 11:44:35 +00:00
David van Moolenbroek
f76d75a5ec Various VFS and MFS fixes to improve correctness, consistency and
POSIX compliance.

VFS changes:
* truncate() on a file system mounted read-only no longer panics MFS.
* ftruncate() and fcntl(F_FREESP) now check for write permission on
  the file descriptor instead of the file, write().
* utime(), chown() and fchown() now check for file system read-only
  status.

MFS changes:
* link() and rename() no longer return the internal EENTERMOUNT and
  ELEAVEMOUNT errors to the application as part of a check on the
  source path.
* rename() now treats EENTERMOUNT from the destination path check as
  an error, preventing file system corruption from renaming a normal
  directory to an existing mountpoint directory.
* mountpoints (mounted-on dirs) are hidden better during lookups:
  - if a lookup starts from a mountpoint, the first component has to
    be ".." (anything else being a VFS-FS protocol violation).
  - in that case, the permissions of the mountpoint are not checked.
  - in all other cases, visiting a mountpoint always results in
    EENTERMOUNT.
* a lookup on ".." from a mount root or chroot(2) root no longer
  succeeds if the caller does not have search permission on that
  directory.
* POSIX: getdents() now updates directory access times.
* POSIX: readlink() now returns partial results instead of ERANGE.

Miscellaneous changes:
* semaphore file handling bug (leading to hangs) fixed in test 32.

The VFS changes should now put the burden of checking for read-only
status of file systems entirely on VFS, and limit the access
permission checks that file systems have to perform, to checking
search permission on directories during lookups. From this point on,
any deviation from that spceification should be considered a bug.
Note that for legacy reasons, the root partition is assumed to be
mounted read-write.
2009-05-18 11:27:12 +00:00
Ben Gras
58f428a704 throw out two time consuming tests 2008-10-01 15:09:33 +00:00
Ben Gras
007bb33c7d Make test 17 use dir 17 2007-09-11 14:56:48 +00:00
Ben Gras
9581f1596f explanations with common test3 errors. 2007-04-02 16:00:06 +00:00
Ben Gras
f84653d908 Default amount of memory for tests (some ran out of memory) 2006-10-25 13:35:03 +00:00
Ben Gras
e61522402a More fixes to reality 2006-03-16 01:47:52 +00:00
Ben Gras
ffd98d1b91 Fix test to match reality 2006-03-15 10:32:23 +00:00
Ben Gras
18df4cb859 Improved test constant 2006-03-07 15:44:00 +00:00
Ben Gras
7475a433bb Test fixes
Added test41, for endpoint macros
2006-03-01 15:28:07 +00:00
Ben Gras
1b28ca47b1 . changed MAXOPEN's from statics to (OPEN_MAX-3)
(test broke after increasing OPEN_MAX)
. changed s_nokill to s_nokill_stop
  (test broken as SIGSTOP isn't maskable)
2006-02-13 11:07:21 +00:00
Jorrit Herder
cdc790c4da Fixed problem in subtest 1; Part of test is now in #if DEAD_CODE ... #endif,
because test setup seems bogus.
2005-10-05 11:28:12 +00:00
Ben Gras
0f8e902692 np if test not made (clean error) 2005-09-22 14:04:50 +00:00
Ben Gras
d969f7b4bc 8<->37
29<->38
20<->39
2005-09-19 13:44:31 +00:00
Ben Gras
d0d8010415 Swap test8 and test37 2005-09-19 13:39:27 +00:00
Ben Gras
23623d1e56 Fix *.sh and run modes 2005-09-12 11:53:22 +00:00
Ben Gras
a17d7c827b Al's no-double-empty-lines crusade 2005-08-22 15:08:27 +00:00
Ben Gras
1569a60360 . swapped test26 and test40
. renamed sh*.sh to testsh*.sh
. invoked shell tests from run script like the other test commands
  (that was the point of renaming)
2005-08-08 14:30:50 +00:00
Ben Gras
5789f7abec config version bumped to 307; NOT cvs tagged yet; misc fixes 2005-08-05 19:19:18 +00:00
Ben Gras
73847b7d50 *** empty log message *** 2005-08-05 16:48:44 +00:00
Ben Gras
2888e14ed8 pty select test 2005-08-05 13:47:12 +00:00
Ben Gras
38987ff79a SIGSTOP being in _NSIG nowadays caused test8 to break - fixed. 2005-07-24 14:06:42 +00:00
Ben Gras
398119f873 Another test case for select - ptys (when implemented) 2005-07-19 16:03:39 +00:00
Ben Gras
42050e39f8 kernel and servers send diagnostic messages to IS; IS sends them to TTY
and the new log driver if enabled.

new usyslogd is started from /usr/etc/rc. New device created by
MAKEDEV.sh. /var/log created by etc/mtree/minix.tree (on root for
now). Made select() slightly more generic, with less code duplication.
2005-07-08 17:30:01 +00:00
Ben Gras
6f02e00837 Fixed sh2.sh test 2005-06-27 09:41:38 +00:00
Ben Gras
400169e960 select-test-set compile fixes. 2005-06-19 23:13:57 +00:00
Ben Gras
ed2a024d47 Select test-set imported from the minix contributions, with permission
to modify and distribute from Jose Manuel Gomez, the author
(jmgomez@linuxmail.org).
2005-06-17 13:45:40 +00:00
Jorrit Herder
8621d392b0 Fixed typo in run output;
Reduced NR_ITERATIONS for tests dealing with MAX_LINKS.
2005-06-17 08:51:28 +00:00
Jorrit Herder
bb2ef4e039 Added welcome message to POSIX test suite. 2005-06-07 11:52:35 +00:00
Ben Gras
dcffa17db2 this test breaks on the new pre-i/o i/o buffer check. it wants to read
more than its buffer allowed, so it is reasonable that it breaks. reducing
read request size 'fixes' it.
2005-05-24 14:57:45 +00:00
Jorrit Herder
ccd17ecfed New NOTIFY system call! Queued at kernel. Duplicate messages (with same source
and type) are overwritten with newer flags/ arguments. The interface from
within the kernel is lock_notify(). User processes can make a system call with
notify(). NOTIFY fully replaces the old notification mechanism.
2005-05-24 10:06:17 +00:00
Ben Gras
821dfb06ed Minor fixes. (Skip test 28 LINK_MAX links generation, it takes too long.) 2005-05-17 08:40:32 +00:00