Commit Graph

133 Commits

Author SHA1 Message Date
Jeremy Soller f90033e0e1 Use PHYS_OFFSET instead of KERNEL_OFFSET to refer to the physmap 2021-04-13 20:38:54 -06:00
4lDO2 031496ff0d Fix "Grant should not exist" errors.
This is done by making sure that when empty() is called on a context,
the grants Arc will be replaced with a new unused Arc, hence
decrementing the refcount. Previously this was only done when the
context was actually reaped, but since there is no guarantee as far as I
am aware about when this must happen, the grants could be completely
leaked, leading to the error.
2021-02-27 15:36:12 +01:00
4lDO2 c913c3be80 Use sysretq in usermode(). 2021-02-15 19:53:24 +01:00
Jeremy Soller 6db78cce24 Use UTF-8 for all paths 2021-02-14 13:45:03 -07:00
Jeremy Soller c19bd573b5 Switch Context::grants to RwLock 2021-02-13 13:06:13 -07:00
Jeremy Soller 2611985a38 Switch Context::actions to RwLock 2021-02-13 13:01:20 -07:00
Jeremy Soller bfaf8438a1 Switch Context::files to RwLock 2021-02-13 12:57:53 -07:00
Jeremy Soller 55d2467420 Switch Context::cwd to using RwLock 2021-02-13 12:24:19 -07:00
Jeremy Soller 238702f7d1 Require UTF-8 for context name 2021-02-13 12:16:47 -07:00
Jeremy Soller b9f4a915ea Make context name a RwLock 2021-02-13 11:10:21 -07:00
Jeremy Soller 334584b3d5 Use rmm::PhysicalAddress and rmm::VirtualAddress directly 2021-01-09 21:16:11 -07:00
Jeremy Soller f5ac405db6 Support for RMM 2020-11-27 16:49:39 +00:00
jD91mZM2 922b3d0437 Remove brk 2020-08-15 17:36:50 +02:00
jD91mZM2 da7b813fa9 Investigate why user heap isn't mapped
Took me way too long to spot this :D
2020-08-15 17:22:34 +02:00
Jeremy Soller 1a8f47330e Add a message when user heap is not mapped, do not panic 2020-08-02 17:07:57 -06:00
jD91mZM2 ccc577b3a1 Abstract over finding nice addresses 2020-07-23 11:22:54 +02:00
jD91mZM2 57c167d2fa Make grants be a BTreeSet 2020-07-22 15:09:28 +02:00
jD91mZM2 9c41424d3a Apply suggestion to src/syscall/process.rs 2020-07-21 14:10:58 +00:00
jD91mZM2 2782a5a7a9 Apply suggestion to src/syscall/process.rs 2020-07-21 14:10:43 +00:00
jD91mZM2 07baf70c7a Don't push interpreter as argv[0] 2020-07-20 11:09:56 +02:00
jD91mZM2 310a425c65 Merge branch 'master' into auxv 2020-07-18 12:19:11 +02:00
jD91mZM2 b00456dbb9 WIP: Continue trying to fix clone_ret 2020-07-16 13:46:53 +02:00
jD91mZM2 3bb234009a WIP: Ensure clone_ret correctness 2020-07-15 11:43:17 +02:00
jD91mZM2 aa3279455d Merge branch 'master' into auxv 2020-07-13 12:48:48 +02:00
jD91mZM2 4b8d2e45c6 Add AT_PHDR 2020-07-10 12:56:08 +02:00
jD91mZM2 3430eadc9a Add auxiliery vector 2020-07-10 12:34:32 +02:00
bjorn3 7b76ab3356 Don't panic on mprotect for unmapped pages 2020-07-09 11:03:02 +02:00
jD91mZM2 039f7f5c83 Simplify EXEC catching
Instead of having a separate flag, let's reuse STOP_SINGLESTEP :)

I wasn't thinking enough when making this flag!
2020-07-07 14:16:42 +02:00
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