Commit Graph

14 Commits

Author SHA1 Message Date
Andrei Vagin 67f2cefce0 Avoid importing platforms from many source files
PiperOrigin-RevId: 256494243
2019-07-03 22:51:26 -07:00
Michael Pratt 5b41ba5d0e Fix various spelling issues in the documentation
Addresses obvious typos, in the documentation only.

COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/443 from Pixep:fix/documentation-spelling 4d0688164eafaf0b3010e5f4824b35d1e7176d65
PiperOrigin-RevId: 255477779
2019-06-27 14:25:50 -07:00
Adin Scannell add40fd6ad Update canonical repository.
This can be merged after:
https://github.com/google/gvisor-website/pull/77
  or
https://github.com/google/gvisor-website/pull/78

PiperOrigin-RevId: 253132620
2019-06-13 16:50:15 -07:00
Michael Pratt 4d52a55201 Change copyright notice to "The gVisor Authors"
Based on the guidelines at
https://opensource.google.com/docs/releasing/authors/.

1. $ rg -l "Google LLC" | xargs sed -i 's/Google LLC.*/The gVisor Authors./'
2. Manual fixup of "Google Inc" references.
3. Add AUTHORS file. Authors may request to be added to this file.
4. Point netstack AUTHORS to gVisor AUTHORS. Drop CONTRIBUTORS.

Fixes #209

PiperOrigin-RevId: 245823212
Change-Id: I64530b24ad021a7d683137459cafc510f5ee1de9
2019-04-29 14:26:23 -07:00
Nicolas Lacasse f4ce43e1f4 Allow and document bug ids in gVisor codebase.
PiperOrigin-RevId: 245818639
Change-Id: I03703ef0fb9b6675955637b9fe2776204c545789
2019-04-29 14:04:14 -07:00
Jamie Liu 8f4634997b Decouple filemem from platform and move it to pgalloc.MemoryFile.
This is in preparation for improved page cache reclaim, which requires
greater integration between the page cache and page allocator.

PiperOrigin-RevId: 238444706
Change-Id: Id24141b3678d96c7d7dc24baddd9be555bffafe4
2019-03-14 08:12:48 -07:00
Jamie Liu 8930e79ebf Clarify the platform.File interface.
- Redefine some memmap.Mappable, platform.File, and platform.Memory
semantics in terms of File reference counts (no functional change).

- Make AddressSpace.MapFile take a platform.File instead of a raw FD,
and replace platform.File.MapInto with platform.File.FD. This allows
kvm.AddressSpace.MapFile to always use platform.File.MapInternal instead
of maintaining its own (redundant) cache of file mappings in the sentry
address space.

PiperOrigin-RevId: 238044504
Change-Id: Ib73a11e4275c0da0126d0194aa6c6017a9cef64f
2019-03-12 10:29:16 -07:00
Fabricio Voznika 0b76887147 Priority-inheritance futex implementation
It is Implemented without the priority inheritance part given
that gVisor defers scheduling decisions to Go runtime and doesn't
have control over it.

PiperOrigin-RevId: 236989545
Change-Id: I714c8ca0798743ecf3167b14ffeb5cd834302560
2019-03-05 23:40:18 -08:00
Ian Gudger 8fce67af24 Use correct company name in copyright header
PiperOrigin-RevId: 217951017
Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-19 16:35:11 -07:00
newmanwang de5a590ee2 Avoid reuse of pending SignalInfo objects
runApp.execute -> Task.SendSignal -> sendSignalLocked -> sendSignalTimerLocked
-> pendingSignals.enqueue assumes that it owns the arch.SignalInfo returned
from platform.Context.Switch.

On the other hand, ptrace.context.Switch assumes that it owns the returned
SignalInfo and can safely reuse it on the next call to Switch. The KVM platform
always returns a unique SignalInfo.

This becomes a problem when the returned signal is not immediately delivered,
allowing a future signal in Switch to change the previous pending SignalInfo.

This is noticeable in #38 when external SIGINTs are delivered from the PTY
slave FD. Note that the ptrace stubs are in the same process group as the
sentry, so they are eligible to receive the PTY signals. This should probably
change, but is not the only possible cause of this bug.

Updates #38

Original change by newmanwang <wcs1011@gmail.com>, updated by Michael Pratt
<mpratt@google.com>.

Change-Id: I5383840272309df70a29f67b25e8221f933622cd
PiperOrigin-RevId: 213071072
2018-09-14 17:39:25 -07:00
Adin Scannell 29e00c943a Add CPUID faulting for ptrace and KVM.
PiperOrigin-RevId: 204858314
Change-Id: I8252bf8de3232a7a27af51076139b585e73276d4
2018-07-16 22:02:58 -07:00
Jamie Liu ee0ef506d4 Add MemoryManager.Pin.
PiperOrigin-RevId: 204162313
Change-Id: Ib0593dde88ac33e222c12d0dca6733ef1f1035dc
2018-07-11 11:52:09 -07:00
Michael Pratt 8deabbaae1 Remove error return from AddressSpace.Release()
PiperOrigin-RevId: 196291289
Change-Id: Ie3487be029850b0b410b82416750853a6c4a2b00
2018-05-11 12:24:15 -07:00
Googler d02b74a5dc Check in gVisor.
PiperOrigin-RevId: 194583126
Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
2018-04-28 01:44:26 -04:00