Commit Graph

105 Commits

Author SHA1 Message Date
jD91mZM2 7fc49eed74 ptrace: Allow stopping on fexec 2020-06-22 13:11:32 +02:00
jD91mZM2 9c891384ea Fix ptrace returning ENODEV when process exists 2020-06-16 13:42:04 +02:00
jD91mZM2 12f632837a Misc proc code cleanup 2020-06-16 10:08:49 +02:00
4lDO2 e7d00d4735 Fix various kernel warnings. 2020-06-11 12:58:03 +02:00
Jeremy Soller 3c86af57b7 Allow contexts sharing process space to run on different CPUs 2020-04-19 08:46:50 -06:00
Jeremy Soller fdf46d8043 Fix multi_core livelocks and add livelock debugging 2020-04-19 08:46:50 -06:00
Jeremy Soller d4d14c78c3 Ensure page table locking at runtime 2020-02-12 20:34:49 -07:00
Jeremy Soller 7721a0a4c6 Fix assignment of cpu_id 2020-02-09 11:05:02 -07:00
Jeremy Soller 388ab2c87d option -> opt 2020-02-09 09:50:40 -07:00
Jeremy Soller 72ea559da4 Do not log mprotects 2019-12-06 19:59:18 -07:00
Jeremy Soller 63e2a835e0 Fix clippy.sh script and fix a number of clippy warnings 2019-10-06 11:04:06 -06:00
jD91mZM2 cf0a7620df Add ptrace exit breakpoint
This will let you stop at process exit and inspect it right before the
process dies.
2019-08-15 14:23:54 +02:00
jD91mZM2 62cd298202 Merge ProtFlags with MapFlags 2019-07-30 11:45:54 +02:00
jD91mZM2 538ca49ee2 Suggestion: Switch to bitflags 2019-07-26 12:23:21 +02:00
jD91mZM2 3ac1416dba First step for ptrace overhaul 2019-07-24 21:42:33 +02:00
jD91mZM2 a7da393cf5 WIP(ptrace): Better support for signals
Signals now cause an event, and there's a way to continue until the
next signal. I can see this being used for detection of `int3`
although I'm not entirely sure as it may prove being too late to stop
abortion of process.
2019-07-21 19:58:32 +02:00
jD91mZM2 be867ae5f1 WIP(ptrace): Add ptrace event system for catching child forks 2019-07-20 09:45:07 +02:00
jD91mZM2 e3d8f23c71 WIP(ptrace): Add dbg! macro and fix waitpid immediately after exit 2019-07-20 09:45:01 +02:00
Jeremy Soller 788526a3b3 Bare-bones ptracing functionality
Since even a very basic ptrace can be nice to have, I thought I would split
the, perhaps rather big, ptrace project up in multiple PRs to make as few
changes as necessary in each. This PR contains the initial registry modifying
bits and only a very basic security measure. Letting this out to the community
should be good for spotting bugs and maybe getting some hype ;)
2019-07-02 07:38:26 -06:00
Jeremy Soller 45ea634798 Revert "Merge branch 'ptrace' into 'master'"
This reverts merge request !103
2019-07-02 11:56:11 +00:00
jD91mZM2 effe02bd45 Remove change I am faaairly certain I did NOT add :O
I'm guessing it's some issue after a rebase or something...
2019-07-01 22:50:19 +00:00
Jeremy Soller 42f977e7da Disable debug messages 2019-06-27 16:29:28 -06:00
Jeremy Soller 144ac70b12 Allow access to other thread's TLS with pointers 2019-06-23 20:21:22 -06:00
jD91mZM2 fe705d9b63 Switch to 2018 edition
Most of this was generated by the absolutely extraordinary `cargo fix`
subcommand. There were still 2 errors and a few warnings to patch up,
but compared to the normal 600+ errors, I'd say the fixer did a damn
good job! I'm also amazed that I could still start the VM after this,
I half expected some kinds of runtime failure...
2019-06-21 12:12:01 +02:00
Jeremy Soller 1be77c2ab4 Store sigmask 2019-06-02 18:45:06 -06:00
Jeremy Soller 126009f83c Keep process name when using interpreter 2019-04-15 21:00:42 -06:00
Jeremy Soller b66fef0479 Copy TCB if it was not initialized using kernel-allocated TLS 2019-04-15 20:47:27 -06:00
Jeremy Soller 6da3ab283e Clone grants 2019-04-15 20:47:03 -06:00
Jeremy Soller 339d68ac8d Remove debugging messages 2019-04-14 19:12:13 -06:00
Jeremy Soller 434e799f2a Place TCB at thread-specific location to avoid overlapping TCBs 2019-04-14 19:05:25 -06:00
Jeremy Soller 21e46b6a55 More cleanup of TLS mapping 2019-04-14 14:50:29 -06:00
Jeremy Soller 9762431a33 Cleanup TLS mapping 2019-04-13 22:00:27 -06:00
Jeremy Soller 8120131897 Add interpreter capability 2019-04-13 21:59:46 -06:00
Jeremy Soller dc28023be1 Remove unnecessary clone 2019-04-13 21:58:34 -06:00
Noam Kleinburd 129d4e3ae5 Lock resources before checking if we need to clean them.
See the comments deleted by this commit for more details as to how
the race condition could effect the system.
2019-04-01 17:01:29 +03:00
Jeremy Soller e5cf6efa64 Support specification of stack with clone system call and CLONE_STACK flag 2019-03-31 14:35:45 -06:00
Jeremy Soller 8fcbf152eb Add mprotect 2018-12-31 21:04:21 -07:00
Jeremy Soller b18e322c3f WIP: itimer and sigprocmask 2018-12-28 21:53:40 -07:00
Jeremy Soller 0df93423a2 Add no_execute to heap now that mmap prot_exec is working 2018-12-28 19:57:51 -07:00
Jeremy Soller 69cbb548fb Mark heap executable for mesa (temporary) 2018-12-11 21:03:57 -07:00
Jeremy Soller 4c38107055 Add umask 2018-11-16 19:43:37 -07:00
Jeremy Soller 5b31bf57be Update to latest rust 2018-11-08 17:25:57 -07:00
Jeremy Soller 1b091d3c9f Set name of process using full path of executable 2018-10-26 10:31:47 -06:00
Jeremy Soller e867326df1 Attempt to schedule other processors more often by waking them up with a context switch when a process is created 2018-09-25 18:01:38 -06:00
jD91mZM2 1d817fa41d Push null after argv 2018-08-13 12:14:29 +02:00
Jeremy Soller 1718d28d39 Push null pointer to indicate end of environment 2018-08-12 08:30:12 -06:00
Jeremy Soller 23f4c76ebb Fixes for launching init 2018-08-11 11:51:58 -06:00
Jeremy Soller 30e68f917e Remove env scheme and env field on context, fix all warnings 2018-08-11 11:34:32 -06:00
Jeremy Soller fe90664e33 Copy variables to USER_ARG_OFFSET 2018-08-11 11:18:45 -06:00
Jeremy Soller c7b3765d6f Remove execve, replace with fexec 2018-08-11 11:14:32 -06:00