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-rw-r--r--pkg/sentry/arch/arch_arm64_abi_autogen_unsafe.go11
-rw-r--r--pkg/sentry/arch/signal_arm64.go9
2 files changed, 5 insertions, 15 deletions
diff --git a/pkg/sentry/arch/arch_arm64_abi_autogen_unsafe.go b/pkg/sentry/arch/arch_arm64_abi_autogen_unsafe.go
index fd02c41c3..327a54a11 100644
--- a/pkg/sentry/arch/arch_arm64_abi_autogen_unsafe.go
+++ b/pkg/sentry/arch/arch_arm64_abi_autogen_unsafe.go
@@ -173,8 +173,7 @@ func (s *SignalContext64) SizeBytes() int {
return 32 +
8*31 +
1*8 +
- (*FpsimdContext)(nil).SizeBytes() +
- 1*3568
+ (*FpsimdContext)(nil).SizeBytes()
}
// MarshalBytes implements marshal.Marshallable.MarshalBytes.
@@ -197,10 +196,6 @@ func (s *SignalContext64) MarshalBytes(dst []byte) {
}
s.Fpsimd64.MarshalBytes(dst[:s.Fpsimd64.SizeBytes()])
dst = dst[s.Fpsimd64.SizeBytes():]
- for idx := 0; idx < 3568; idx++ {
- dst[0] = byte(s.Reserved[idx])
- dst = dst[1:]
- }
}
// UnmarshalBytes implements marshal.Marshallable.UnmarshalBytes.
@@ -223,10 +218,6 @@ func (s *SignalContext64) UnmarshalBytes(src []byte) {
}
s.Fpsimd64.UnmarshalBytes(src[:s.Fpsimd64.SizeBytes()])
src = src[s.Fpsimd64.SizeBytes():]
- for idx := 0; idx < 3568; idx++ {
- s.Reserved[idx] = uint8(src[0])
- src = src[1:]
- }
}
// Packed implements marshal.Marshallable.Packed.
diff --git a/pkg/sentry/arch/signal_arm64.go b/pkg/sentry/arch/signal_arm64.go
index 7fde5d34e..71596130d 100644
--- a/pkg/sentry/arch/signal_arm64.go
+++ b/pkg/sentry/arch/signal_arm64.go
@@ -36,7 +36,6 @@ type SignalContext64 struct {
Pstate uint64
_pad [8]byte // __attribute__((__aligned__(16)))
Fpsimd64 FpsimdContext // size = 528
- Reserved [3568]uint8
}
// +marshal
@@ -86,10 +85,6 @@ func (c *context64) NewSignalStack() NativeSignalStack {
func (c *context64) SignalSetup(st *Stack, act *SignalAct, info *SignalInfo, alt *SignalStack, sigset linux.SignalSet) error {
sp := st.Bottom
- if !(alt.IsEnabled() && sp == alt.Top()) {
- sp -= 128
- }
-
// Construct the UContext64 now since we need its size.
uc := &UContext64{
Flags: 0,
@@ -102,6 +97,10 @@ func (c *context64) SignalSetup(st *Stack, act *SignalAct, info *SignalInfo, alt
},
Sigset: sigset,
}
+ if linux.Signal(info.Signo) == linux.SIGSEGV || linux.Signal(info.Signo) == linux.SIGBUS {
+ uc.MContext.FaultAddr = info.Addr()
+ }
+
ucSize := uc.SizeBytes()
// frameSize = ucSize + sizeof(siginfo).