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2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-14enable pkg/sentry/arch to support arm64 basicallylubinszARM
Signed-off-by: Bin Lu <bin.lu@arm.com> Change-Id: I9cce23db4e5caec82ce42b4970fdb7f7e8c08f1d COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/773 from lubinszARM:pr_arch_basic 3fe2fd8e6286766bbe489ef971dce204f924feba PiperOrigin-RevId: 289795569
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
2020-01-06Implement rseq(2)Michael Pratt
PiperOrigin-RevId: 288342928
2019-12-04Remove TODO since we don't plan to support debug registersFabricio Voznika
PiperOrigin-RevId: 283828423
2019-10-16Reorder BUILD license and load functions in gvisor.Kevin Krakauer
PiperOrigin-RevId: 275139066
2019-09-23internal BUILD file cleanup.gVisor bot
PiperOrigin-RevId: 270680704
2019-07-21Add ARM64 support to pkg/sentry/loaderBin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com>
2019-06-13Update canonical repository.Adin Scannell
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
2019-04-29Change copyright notice to "The gVisor Authors"Michael Pratt
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
2019-04-29Allow and document bug ids in gVisor codebase.Nicolas Lacasse
PiperOrigin-RevId: 245818639 Change-Id: I03703ef0fb9b6675955637b9fe2776204c545789
2019-04-25Perform explicit CPUID and FP state compatibility checks on restoreMichael Pratt
PiperOrigin-RevId: 245341004 Change-Id: Ic4d581039d034a8ae944b43e45e84eb2c3973657
2019-04-10Internal changeMichael Pratt
PiperOrigin-RevId: 242978508 Change-Id: I0ea59ac5ba1dd499e87c53f2e24709371048679b
2019-02-05Change /proc/PID/cmdline to read environment vector.Zach Koopmans
- Change proc to return envp on overwrite of argv with limitations from upstream. - Add unit tests - Change layout of argv/envp on the stack so that end of argv is contiguous with beginning of envp. PiperOrigin-RevId: 232506107 Change-Id: I993880499ab2c1220f6dc456a922235c49304dec
2019-01-31Remove license commentsMichael Pratt
Nothing reads them and they can simply get stale. Generated with: $ sed -i "s/licenses(\(.*\)).*/licenses(\1)/" **/BUILD PiperOrigin-RevId: 231818945 Change-Id: Ibc3f9838546b7e94f13f217060d31f4ada9d4bf0
2018-12-10Validate FS_BASE in Task.CloneMichael Pratt
arch_prctl already verified that the new FS_BASE was canonical, but Task.Clone did not. Centralize these checks in the arch packages. Failure to validate could cause an error in PTRACE_SET_REGS when we try to switch to the app. PiperOrigin-RevId: 224862398 Change-Id: Iefe63b3f9aa6c4810326b8936e501be3ec407f14
2018-10-23Track paths and provide a rename hook.Adin Scannell
This change also adds extensive testing to the p9 package via mocks. The sanity checks and type checks are moved from the gofer into the core package, where they can be more easily validated. PiperOrigin-RevId: 218296768 Change-Id: I4fc3c326e7bf1e0e140a454cbacbcc6fd617ab55
2018-10-19Use correct company name in copyright headerIan Gudger
PiperOrigin-RevId: 217951017 Change-Id: Ie08bf6987f98467d07457bcf35b5f1ff6e43c035
2018-10-10Add seccomp filter configuration to ptrace stubs.Adin Scannell
This is a defense-in-depth measure. If the sentry is compromised, this prevents system call injection to the stubs. There is some complexity with respect to ptrace and seccomp interactions, so this protection is not really available for kernel versions < 4.8; this is detected dynamically. Note that this also solves the vsyscall emulation issue by adding in appropriate trapping for those system calls. It does mean that a compromised sentry could theoretically inject these into the stub (ignoring the trap and resume, thereby allowing execution), but they are harmless. PiperOrigin-RevId: 216647581 Change-Id: Id06c232cbac1f9489b1803ec97f83097fcba8eb8
2018-08-23Implement POSIX per-process interval timers.Jamie Liu
PiperOrigin-RevId: 210021612 Change-Id: If7c161e6fd08cf17942bfb6bc5a8d2c4e271c61e
2018-08-02Automated rollback of changelist 207037226Zhaozhong Ni
PiperOrigin-RevId: 207125440 Change-Id: I6c572afb4d693ee72a0c458a988b0e96d191cd49
2018-08-01Automated rollback of changelist 207007153Michael Pratt
PiperOrigin-RevId: 207037226 Change-Id: I8b5f1a056d4f3eab17846f2e0193bb737ecb5428
2018-08-01stateify: convert all packages to use explicit mode.Zhaozhong Ni
PiperOrigin-RevId: 207007153 Change-Id: Ifedf1cc3758dc18be16647a4ece9c840c1c636c9
2018-07-27stateify: support explicit annotation mode; convert refs and stack packages.Zhaozhong Ni
We have been unnecessarily creating too many savable types implicitly. PiperOrigin-RevId: 206334201 Change-Id: Idc5a3a14bfb7ee125c4f2bb2b1c53164e46f29a8
2018-06-08Fix sigaltstack semantics.Adin Scannell
Walking off the bottom of the sigaltstack, for example with recursive faults, results in forced signal delivery, not resetting the stack or pushing signal stack to whatever happens to lie below the signal stack. PiperOrigin-RevId: 199856085 Change-Id: I0004d2523f0df35d18714de2685b3eaa147837e0
2018-04-28Check in gVisor.Googler
PiperOrigin-RevId: 194583126 Change-Id: Ica1d8821a90f74e7e745962d71801c598c652463
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