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2020-01-24Merge release-20200115.0-96-g390bb9c (automated)gVisor bot
2020-01-24Ignore external SIGURGMichael Pratt
Go 1.14+ sends SIGURG to Ms to attempt asynchronous preemption of a G. Since it can't guarantee that a SIGURG is only related to preemption, it continues to forward them to signal.Notify (see runtime.sighandler). We should ignore these signals, as applications shouldn't receive them. Note that this means that truly external SIGURG can no longer be sent to the application (as with SIGCHLD). PiperOrigin-RevId: 291415357
2020-01-24Merge release-20200115.0-94-g3db3173 (automated)gVisor bot
2020-01-23Remove epoll entry from map when dropping it.Nicolas Lacasse
This pattern (delete from map when dropping) is also used in epoll.RemoveEntry, and seems like generally a good idea. PiperOrigin-RevId: 291268208
2020-01-22Merge release-20200115.0-72-g5ab1213 (automated)gVisor bot
2020-01-22Move VFS2 handling of FD readability/writability to vfs.FileDescription.Jamie Liu
PiperOrigin-RevId: 291006713
2020-01-22Merge release-20200115.0-71-g1599923 (automated)gVisor bot
2020-01-10Merge release-20191213.0-96-g27500d5 (automated)gVisor bot
2020-01-09New sync package.Ian Gudger
* Rename syncutil to sync. * Add aliases to sync types. * Replace existing usage of standard library sync package. This will make it easier to swap out synchronization primitives. For example, this will allow us to use primitives from github.com/sasha-s/go-deadlock to check for lock ordering violations. Updates #1472 PiperOrigin-RevId: 289033387
2020-01-06Merge release-20191213.0-61-g354a15a (automated)gVisor bot
2020-01-06Implement rseq(2)Michael Pratt
PiperOrigin-RevId: 288342928
2020-01-06Merge release-20191213.0-60-g6410387 (automated)gVisor bot
2020-01-06Cleanup Shm reference handlingMichael Pratt
Currently, shm.Registry.FindByID will return Shm instances without taking an additional reference on them, making it possible for them to disappear. More explicitly handle references. All callers hold a reference for the duration that they hold the instance. Registry.shms may transitively hold Shms with no references, so it must TryIncRef to determine if they are still valid. PiperOrigin-RevId: 288314529
2019-12-26Merge release-20191213.0-54-g3c125eb (automated)gVisor bot
2019-12-26Initial procfs implementation in VFSv2Fabricio Voznika
Updates #1195 PiperOrigin-RevId: 287227722
2019-12-11Merge release-20191129.0-48-g0d02726 (automated)gVisor bot
2019-12-09Merge release-20191129.0-27-g898dcc2 (automated)gVisor bot
2019-12-09Redirect TODOs to gvisor.devFabricio Voznika
PiperOrigin-RevId: 284606233
2019-12-07Merge release-20191129.0-18-g371e210 (automated)gVisor bot
2019-12-06Add runtime tracing.Adin Scannell
This adds meaningful annotations to the trace generated by the runtime/trace package. PiperOrigin-RevId: 284290115
2019-12-06Merge release-20191129.0-14-g663fe84 (automated)gVisor bot
2019-12-06Implement TTY field in control.Processes().Nicolas Lacasse
Threadgroups already know their TTY (if they have one), which now contains the TTY Index, and is returned in the Processes() call. PiperOrigin-RevId: 284263850
2019-11-21Merge release-20191114.0-18-gc0f89eb (automated)gVisor bot
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
2019-11-18Merge release-20191114.0-13-g235a96c (automated)gVisor bot
2019-11-13Fix some build errors on arm64.Haibo Xu
Initialize the VDSO "os" and "arch" fields explicitly, or the VDSO load process would failed on arm64 platform. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: Ic6768df88e43cd7c7956eb630511672ae11ac52f
2019-11-04Merge release-20190806.1-369-g1e21496 (automated)gVisor bot
2019-11-01Merge release-20190806.1-358-ga99d347 (automated)gVisor bot
2019-10-31Add context to state.Adin Scannell
PiperOrigin-RevId: 277840416
2019-10-29Merge release-20190806.1-342-gd7f5e82 (automated)gVisor bot
2019-10-29Fix grammar in comment.Dean Deng
Missing "for". PiperOrigin-RevId: 277358513
2019-10-29Merge release-20190806.1-333-g29273b0 (automated)gVisor bot
2019-10-29Disallow execveat on interpreter scripts with fd opened with O_CLOEXEC.Dean Deng
When an interpreter script is opened with O_CLOEXEC and the resulting fd is passed into execveat, an ENOENT error should occur (the script would otherwise be inaccessible to the interpreter). This matches the actual behavior of Linux's execveat. PiperOrigin-RevId: 277306680
2019-10-28Merge release-20190806.1-330-g198f1cd (automated)gVisor bot
2019-10-28Update commentMichael Pratt
FDTable.GetFile doesn't exist. PiperOrigin-RevId: 277089842
2019-10-26Merge release-20190806.1-329-g1c480ab (automated)gVisor bot
2019-10-25Aggregate arguments for loading executables into a single struct.Dean Deng
This change simplifies the function signatures of functions related to loading executables, such as LoadTaskImage, Load, loadBinary. PiperOrigin-RevId: 276821187
2019-10-24Merge release-20190806.1-318-gd9fd536 (automated)gVisor bot
2019-10-24Handle AT_SYMLINK_NOFOLLOW flag for execveat.Dean Deng
PiperOrigin-RevId: 276441249
2019-10-23Merge release-20190806.1-309-gfbe6b50 (automated)gVisor bot
2019-10-23Keep minimal available fd to accelerate fd allocationDarcySail
Use fd.next to store the iteration start position, which can be used to accelerate allocating new FDs. And adding the corresponding gtest benchmark to measure performance. @tanjianfeng COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/758 from DarcySail:master 96685ec7886dfe1a64988406831d3bc002b438cc PiperOrigin-RevId: 276351250
2019-10-21Merge release-20190806.1-296-ga9358ce (automated)gVisor bot
2019-10-19Merge release-20190806.1-294-g652f7b1 (automated)gVisor bot
2019-10-19Add support for pipes in VFS2.Kevin Krakauer
PiperOrigin-RevId: 275650307
2019-10-17Merge release-20190806.1-286-gdfdbdf1 (automated)gVisor bot
2019-10-17Refactor pipe to support VFS2.Kevin Krakauer
* Pulls common functionality (IO and locking on open) into pipe_util.go. * Adds pipe/vfs.go, which implements a subset of vfs.FileDescriptionImpl. A subsequent change will add support for pipes in memfs. PiperOrigin-RevId: 275322385
2019-10-16Reorder BUILD license and load functions in gvisor.Kevin Krakauer
PiperOrigin-RevId: 275139066
2019-10-10Merge release-20190806.1-259-gf8b1859 (automated)gVisor bot
2019-10-10Fix signalfd polling.Adin Scannell
The signalfd descriptors otherwise always show as available. This can lead programs to spin, assuming they are looking to see what signals are pending. Updates #139 PiperOrigin-RevId: 274017890
2019-10-08Merge release-20190806.1-246-g1de0cf3 (automated)gVisor bot
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