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author | gVisor bot <gvisor-bot@google.com> | 2020-08-20 20:36:02 +0000 |
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committer | gVisor bot <gvisor-bot@google.com> | 2020-08-20 20:36:02 +0000 |
commit | 8c844b60d240b3b00a45620044be39e8797294f7 (patch) | |
tree | 0961bd86800ea4a7f39f348ce57a3d012a72cc20 /pkg/sentry/kernel/rseq.go | |
parent | 38234fef22552b4b44bbac542abd68212690378e (diff) | |
parent | 129018ab3d945758b800aa5e6fe1a01d0e99446c (diff) |
Merge release-20200810.0-74-g129018ab3 (automated)
Diffstat (limited to 'pkg/sentry/kernel/rseq.go')
-rw-r--r-- | pkg/sentry/kernel/rseq.go | 31 |
1 files changed, 19 insertions, 12 deletions
diff --git a/pkg/sentry/kernel/rseq.go b/pkg/sentry/kernel/rseq.go index 18416643b..2a9023fdf 100644 --- a/pkg/sentry/kernel/rseq.go +++ b/pkg/sentry/kernel/rseq.go @@ -173,8 +173,10 @@ func (t *Task) OldRSeqCPUAddr() usermem.Addr { // SetOldRSeqCPUAddr replaces the address that old rseq will keep updated with // t's CPU number. // -// Preconditions: t.RSeqAvailable() == true. The caller must be running on the -// task goroutine. t's AddressSpace must be active. +// Preconditions: +// * t.RSeqAvailable() == true. +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) SetOldRSeqCPUAddr(addr usermem.Addr) error { t.oldRSeqCPUAddr = addr @@ -189,8 +191,9 @@ func (t *Task) SetOldRSeqCPUAddr(addr usermem.Addr) error { return nil } -// Preconditions: The caller must be running on the task goroutine. t's -// AddressSpace must be active. +// Preconditions: +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) rseqUpdateCPU() error { if t.rseqAddr == 0 && t.oldRSeqCPUAddr == 0 { t.rseqCPU = -1 @@ -209,8 +212,9 @@ func (t *Task) rseqUpdateCPU() error { return oerr } -// Preconditions: The caller must be running on the task goroutine. t's -// AddressSpace must be active. +// Preconditions: +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) oldRSeqCopyOutCPU() error { if t.oldRSeqCPUAddr == 0 { return nil @@ -222,8 +226,9 @@ func (t *Task) oldRSeqCopyOutCPU() error { return err } -// Preconditions: The caller must be running on the task goroutine. t's -// AddressSpace must be active. +// Preconditions: +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) rseqCopyOutCPU() error { if t.rseqAddr == 0 { return nil @@ -240,8 +245,9 @@ func (t *Task) rseqCopyOutCPU() error { return err } -// Preconditions: The caller must be running on the task goroutine. t's -// AddressSpace must be active. +// Preconditions: +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) rseqClearCPU() error { buf := t.CopyScratchBuffer(8) // CPUIDStart and CPUID are the first two fields in linux.RSeq. @@ -269,8 +275,9 @@ func (t *Task) rseqClearCPU() error { // // See kernel/rseq.c:rseq_ip_fixup for reference. // -// Preconditions: The caller must be running on the task goroutine. t's -// AddressSpace must be active. +// Preconditions: +// * The caller must be running on the task goroutine. +// * t's AddressSpace must be active. func (t *Task) rseqAddrInterrupt() { if t.rseqAddr == 0 { return |