diff options
| -rw-r--r-- | pkg/sentry/mm/lifecycle.go | 1 | ||||
| -rw-r--r-- | pkg/sentry/mm/metadata.go | 14 | ||||
| -rw-r--r-- | pkg/sentry/mm/mm.go | 3 |
3 files changed, 18 insertions, 0 deletions
diff --git a/pkg/sentry/mm/lifecycle.go b/pkg/sentry/mm/lifecycle.go index d8a5b9d29..aac56679b 100644 --- a/pkg/sentry/mm/lifecycle.go +++ b/pkg/sentry/mm/lifecycle.go @@ -84,6 +84,7 @@ func (mm *MemoryManager) Fork(ctx context.Context) (*MemoryManager, error) { dumpability: mm.dumpability, aioManager: aioManager{contexts: make(map[uint64]*AIOContext)}, sleepForActivation: mm.sleepForActivation, + vdsoSigReturnAddr: mm.vdsoSigReturnAddr, } // Copy vmas. diff --git a/pkg/sentry/mm/metadata.go b/pkg/sentry/mm/metadata.go index 6a49334f4..28e5057f7 100644 --- a/pkg/sentry/mm/metadata.go +++ b/pkg/sentry/mm/metadata.go @@ -167,3 +167,17 @@ func (mm *MemoryManager) SetExecutable(file fsbridge.File) { orig.DecRef() } } + +// VDSOSigReturn returns the address of vdso_sigreturn. +func (mm *MemoryManager) VDSOSigReturn() uint64 { + mm.metadataMu.Lock() + defer mm.metadataMu.Unlock() + return mm.vdsoSigReturnAddr +} + +// SetVDSOSigReturn sets the address of vdso_sigreturn. +func (mm *MemoryManager) SetVDSOSigReturn(addr uint64) { + mm.metadataMu.Lock() + defer mm.metadataMu.Unlock() + mm.vdsoSigReturnAddr = addr +} diff --git a/pkg/sentry/mm/mm.go b/pkg/sentry/mm/mm.go index c2195ae11..34d3bde7a 100644 --- a/pkg/sentry/mm/mm.go +++ b/pkg/sentry/mm/mm.go @@ -231,6 +231,9 @@ type MemoryManager struct { // before trying to activate the address space. When set to true, delays in // activation are not reported as stuck tasks by the watchdog. sleepForActivation bool + + // vdsoSigReturnAddr is the address of 'vdso_sigreturn'. + vdsoSigReturnAddr uint64 } // vma represents a virtual memory area. |