diff options
Diffstat (limited to 'pkg/sentry/arch/arch_amd64.go')
| -rw-r--r-- | pkg/sentry/arch/arch_amd64.go | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/pkg/sentry/arch/arch_amd64.go b/pkg/sentry/arch/arch_amd64.go index bb80a7bed..2507774f7 100644 --- a/pkg/sentry/arch/arch_amd64.go +++ b/pkg/sentry/arch/arch_amd64.go @@ -158,6 +158,22 @@ func (c *context64) SetStack(value uintptr) { c.Regs.Rsp = uint64(value) } +// TLS returns the current TLS pointer. +func (c *context64) TLS() uintptr { + return uintptr(c.Regs.Fs_base) +} + +// SetTLS sets the current TLS pointer. Returns false if value is invalid. +func (c *context64) SetTLS(value uintptr) bool { + if !isValidSegmentBase(uint64(value)) { + return false + } + + c.Regs.Fs = 0 + c.Regs.Fs_base = uint64(value) + return true +} + // SetRSEQInterruptedIP implements Context.SetRSEQInterruptedIP. func (c *context64) SetRSEQInterruptedIP(value uintptr) { c.Regs.R10 = uint64(value) |