diff options
| author | Haibo Xu <haibo.xu@arm.com> | 2019-08-09 13:16:46 -0700 |
|---|---|---|
| committer | gVisor bot <gvisor-bot@google.com> | 2019-08-09 13:18:11 -0700 |
| commit | 1c9da886e72aebc1c44c66715e3ec45f6d5eff5b (patch) | |
| tree | 70505665f656e21e8c05182045ee5e5ffb4fde35 /pkg/sentry/platform/ptrace/subprocess.go | |
| parent | c8961a6cbde04603398d1db92b8a26147453f3a7 (diff) | |
Add initial ptrace stub and syscall support for arm64.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Change-Id: I1dbd23bb240cca71d0cc30fc75ca5be28cb4c37c
PiperOrigin-RevId: 262619519
Diffstat (limited to 'pkg/sentry/platform/ptrace/subprocess.go')
| -rw-r--r-- | pkg/sentry/platform/ptrace/subprocess.go | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/pkg/sentry/platform/ptrace/subprocess.go b/pkg/sentry/platform/ptrace/subprocess.go index 15e84735e..79501682d 100644 --- a/pkg/sentry/platform/ptrace/subprocess.go +++ b/pkg/sentry/platform/ptrace/subprocess.go @@ -28,6 +28,16 @@ import ( "gvisor.dev/gvisor/pkg/sentry/usermem" ) +// Linux kernel errnos which "should never be seen by user programs", but will +// be revealed to ptrace syscall exit tracing. +// +// These constants are only used in subprocess.go. +const ( + ERESTARTSYS = syscall.Errno(512) + ERESTARTNOINTR = syscall.Errno(513) + ERESTARTNOHAND = syscall.Errno(514) +) + // globalPool exists to solve two distinct problems: // // 1) Subprocesses can't always be killed properly (see Release). @@ -282,7 +292,7 @@ func (t *thread) grabInitRegs() { if err := t.getRegs(&t.initRegs); err != nil { panic(fmt.Sprintf("ptrace get regs failed: %v", err)) } - t.initRegs.Rip -= initRegsRipAdjustment + t.adjustInitRegsRip() } // detach detaches from the thread. |