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-rw-r--r--pkg/sentry/platform/ptrace/ptrace_amd64.go7
-rw-r--r--pkg/sentry/platform/ptrace/ptrace_arm64.go5
-rw-r--r--pkg/sentry/platform/ptrace/ptrace_unsafe.go4
-rw-r--r--pkg/sentry/platform/ptrace/subprocess.go8
-rw-r--r--pkg/sentry/platform/ptrace/subprocess_amd64.go16
-rw-r--r--pkg/sentry/platform/ptrace/subprocess_arm64.go16
6 files changed, 27 insertions, 29 deletions
diff --git a/pkg/sentry/platform/ptrace/ptrace_amd64.go b/pkg/sentry/platform/ptrace/ptrace_amd64.go
index 24fc5dc62..3b9a870a5 100644
--- a/pkg/sentry/platform/ptrace/ptrace_amd64.go
+++ b/pkg/sentry/platform/ptrace/ptrace_amd64.go
@@ -15,9 +15,8 @@
package ptrace
import (
- "syscall"
-
"gvisor.dev/gvisor/pkg/abi/linux"
+ "gvisor.dev/gvisor/pkg/sentry/arch"
)
// fpRegSet returns the GETREGSET/SETREGSET register set type to be used.
@@ -28,12 +27,12 @@ func fpRegSet(useXsave bool) uintptr {
return linux.NT_PRFPREG
}
-func stackPointer(r *syscall.PtraceRegs) uintptr {
+func stackPointer(r *arch.Registers) uintptr {
return uintptr(r.Rsp)
}
// x86 use the fs_base register to store the TLS pointer which can be
-// get/set in "func (t *thread) get/setRegs(regs *syscall.PtraceRegs)".
+// get/set in "func (t *thread) get/setRegs(regs *arch.Registers)".
// So both of the get/setTLS() operations are noop here.
// getTLS gets the thread local storage register.
diff --git a/pkg/sentry/platform/ptrace/ptrace_arm64.go b/pkg/sentry/platform/ptrace/ptrace_arm64.go
index 4db28c534..5c869926a 100644
--- a/pkg/sentry/platform/ptrace/ptrace_arm64.go
+++ b/pkg/sentry/platform/ptrace/ptrace_arm64.go
@@ -15,9 +15,8 @@
package ptrace
import (
- "syscall"
-
"gvisor.dev/gvisor/pkg/abi/linux"
+ "gvisor.dev/gvisor/pkg/sentry/arch"
)
// fpRegSet returns the GETREGSET/SETREGSET register set type to be used.
@@ -25,6 +24,6 @@ func fpRegSet(_ bool) uintptr {
return linux.NT_PRFPREG
}
-func stackPointer(r *syscall.PtraceRegs) uintptr {
+func stackPointer(r *arch.Registers) uintptr {
return uintptr(r.Sp)
}
diff --git a/pkg/sentry/platform/ptrace/ptrace_unsafe.go b/pkg/sentry/platform/ptrace/ptrace_unsafe.go
index 6c0ed7b3e..8b72d24e8 100644
--- a/pkg/sentry/platform/ptrace/ptrace_unsafe.go
+++ b/pkg/sentry/platform/ptrace/ptrace_unsafe.go
@@ -24,7 +24,7 @@ import (
)
// getRegs gets the general purpose register set.
-func (t *thread) getRegs(regs *syscall.PtraceRegs) error {
+func (t *thread) getRegs(regs *arch.Registers) error {
iovec := syscall.Iovec{
Base: (*byte)(unsafe.Pointer(regs)),
Len: uint64(unsafe.Sizeof(*regs)),
@@ -43,7 +43,7 @@ func (t *thread) getRegs(regs *syscall.PtraceRegs) error {
}
// setRegs sets the general purpose register set.
-func (t *thread) setRegs(regs *syscall.PtraceRegs) error {
+func (t *thread) setRegs(regs *arch.Registers) error {
iovec := syscall.Iovec{
Base: (*byte)(unsafe.Pointer(regs)),
Len: uint64(unsafe.Sizeof(*regs)),
diff --git a/pkg/sentry/platform/ptrace/subprocess.go b/pkg/sentry/platform/ptrace/subprocess.go
index 773ddb1ed..2389423b0 100644
--- a/pkg/sentry/platform/ptrace/subprocess.go
+++ b/pkg/sentry/platform/ptrace/subprocess.go
@@ -63,7 +63,7 @@ type thread struct {
// initRegs are the initial registers for the first thread.
//
// These are used for the register set for system calls.
- initRegs syscall.PtraceRegs
+ initRegs arch.Registers
}
// threadPool is a collection of threads.
@@ -317,7 +317,7 @@ const (
)
func (t *thread) dumpAndPanic(message string) {
- var regs syscall.PtraceRegs
+ var regs arch.Registers
message += "\n"
if err := t.getRegs(&regs); err == nil {
message += dumpRegs(&regs)
@@ -423,7 +423,7 @@ func (t *thread) init() {
// This is _not_ for use by application system calls, rather it is for use when
// a system call must be injected into the remote context (e.g. mmap, munmap).
// Note that clones are handled separately.
-func (t *thread) syscall(regs *syscall.PtraceRegs) (uintptr, error) {
+func (t *thread) syscall(regs *arch.Registers) (uintptr, error) {
// Set registers.
if err := t.setRegs(regs); err != nil {
panic(fmt.Sprintf("ptrace set regs failed: %v", err))
@@ -461,7 +461,7 @@ func (t *thread) syscall(regs *syscall.PtraceRegs) (uintptr, error) {
// syscallIgnoreInterrupt ignores interrupts on the system call thread and
// restarts the syscall if the kernel indicates that should happen.
func (t *thread) syscallIgnoreInterrupt(
- initRegs *syscall.PtraceRegs,
+ initRegs *arch.Registers,
sysno uintptr,
args ...arch.SyscallArgument) (uintptr, error) {
for {
diff --git a/pkg/sentry/platform/ptrace/subprocess_amd64.go b/pkg/sentry/platform/ptrace/subprocess_amd64.go
index cd74945e7..84b699f0d 100644
--- a/pkg/sentry/platform/ptrace/subprocess_amd64.go
+++ b/pkg/sentry/platform/ptrace/subprocess_amd64.go
@@ -41,7 +41,7 @@ const (
// resetSysemuRegs sets up emulation registers.
//
// This should be called prior to calling sysemu.
-func (t *thread) resetSysemuRegs(regs *syscall.PtraceRegs) {
+func (t *thread) resetSysemuRegs(regs *arch.Registers) {
regs.Cs = t.initRegs.Cs
regs.Ss = t.initRegs.Ss
regs.Ds = t.initRegs.Ds
@@ -53,7 +53,7 @@ func (t *thread) resetSysemuRegs(regs *syscall.PtraceRegs) {
// createSyscallRegs sets up syscall registers.
//
// This should be called to generate registers for a system call.
-func createSyscallRegs(initRegs *syscall.PtraceRegs, sysno uintptr, args ...arch.SyscallArgument) syscall.PtraceRegs {
+func createSyscallRegs(initRegs *arch.Registers, sysno uintptr, args ...arch.SyscallArgument) arch.Registers {
// Copy initial registers.
regs := *initRegs
@@ -82,18 +82,18 @@ func createSyscallRegs(initRegs *syscall.PtraceRegs, sysno uintptr, args ...arch
}
// isSingleStepping determines if the registers indicate single-stepping.
-func isSingleStepping(regs *syscall.PtraceRegs) bool {
+func isSingleStepping(regs *arch.Registers) bool {
return (regs.Eflags & arch.X86TrapFlag) != 0
}
// updateSyscallRegs updates registers after finishing sysemu.
-func updateSyscallRegs(regs *syscall.PtraceRegs) {
+func updateSyscallRegs(regs *arch.Registers) {
// Ptrace puts -ENOSYS in rax on syscall-enter-stop.
regs.Rax = regs.Orig_rax
}
// syscallReturnValue extracts a sensible return from registers.
-func syscallReturnValue(regs *syscall.PtraceRegs) (uintptr, error) {
+func syscallReturnValue(regs *arch.Registers) (uintptr, error) {
rval := int64(regs.Rax)
if rval < 0 {
return 0, syscall.Errno(-rval)
@@ -101,7 +101,7 @@ func syscallReturnValue(regs *syscall.PtraceRegs) (uintptr, error) {
return uintptr(rval), nil
}
-func dumpRegs(regs *syscall.PtraceRegs) string {
+func dumpRegs(regs *arch.Registers) string {
var m strings.Builder
fmt.Fprintf(&m, "Registers:\n")
@@ -143,7 +143,7 @@ func (t *thread) adjustInitRegsRip() {
}
// Pass the expected PPID to the child via R15 when creating stub process.
-func initChildProcessPPID(initregs *syscall.PtraceRegs, ppid int32) {
+func initChildProcessPPID(initregs *arch.Registers, ppid int32) {
initregs.R15 = uint64(ppid)
// Rbx has to be set to 1 when creating stub process.
initregs.Rbx = 1
@@ -156,7 +156,7 @@ func initChildProcessPPID(initregs *syscall.PtraceRegs, ppid int32) {
//
// Note that this should only be called after verifying that the signalInfo has
// been generated by the kernel.
-func patchSignalInfo(regs *syscall.PtraceRegs, signalInfo *arch.SignalInfo) {
+func patchSignalInfo(regs *arch.Registers, signalInfo *arch.SignalInfo) {
if linux.Signal(signalInfo.Signo) == linux.SIGSYS {
signalInfo.Signo = int32(linux.SIGSEGV)
diff --git a/pkg/sentry/platform/ptrace/subprocess_arm64.go b/pkg/sentry/platform/ptrace/subprocess_arm64.go
index 7f5c393f0..bd618fae8 100644
--- a/pkg/sentry/platform/ptrace/subprocess_arm64.go
+++ b/pkg/sentry/platform/ptrace/subprocess_arm64.go
@@ -41,13 +41,13 @@ const (
// resetSysemuRegs sets up emulation registers.
//
// This should be called prior to calling sysemu.
-func (t *thread) resetSysemuRegs(regs *syscall.PtraceRegs) {
+func (t *thread) resetSysemuRegs(regs *arch.Registers) {
}
// createSyscallRegs sets up syscall registers.
//
// This should be called to generate registers for a system call.
-func createSyscallRegs(initRegs *syscall.PtraceRegs, sysno uintptr, args ...arch.SyscallArgument) syscall.PtraceRegs {
+func createSyscallRegs(initRegs *arch.Registers, sysno uintptr, args ...arch.SyscallArgument) arch.Registers {
// Copy initial registers (Pc, Sp, etc.).
regs := *initRegs
@@ -78,7 +78,7 @@ func createSyscallRegs(initRegs *syscall.PtraceRegs, sysno uintptr, args ...arch
}
// isSingleStepping determines if the registers indicate single-stepping.
-func isSingleStepping(regs *syscall.PtraceRegs) bool {
+func isSingleStepping(regs *arch.Registers) bool {
// Refer to the ARM SDM D2.12.3: software step state machine
// return (regs.Pstate.SS == 1) && (MDSCR_EL1.SS == 1).
//
@@ -89,13 +89,13 @@ func isSingleStepping(regs *syscall.PtraceRegs) bool {
}
// updateSyscallRegs updates registers after finishing sysemu.
-func updateSyscallRegs(regs *syscall.PtraceRegs) {
+func updateSyscallRegs(regs *arch.Registers) {
// No special work is necessary.
return
}
// syscallReturnValue extracts a sensible return from registers.
-func syscallReturnValue(regs *syscall.PtraceRegs) (uintptr, error) {
+func syscallReturnValue(regs *arch.Registers) (uintptr, error) {
rval := int64(regs.Regs[0])
if rval < 0 {
return 0, syscall.Errno(-rval)
@@ -103,7 +103,7 @@ func syscallReturnValue(regs *syscall.PtraceRegs) (uintptr, error) {
return uintptr(rval), nil
}
-func dumpRegs(regs *syscall.PtraceRegs) string {
+func dumpRegs(regs *arch.Registers) string {
var m strings.Builder
fmt.Fprintf(&m, "Registers:\n")
@@ -125,7 +125,7 @@ func (t *thread) adjustInitRegsRip() {
}
// Pass the expected PPID to the child via X7 when creating stub process
-func initChildProcessPPID(initregs *syscall.PtraceRegs, ppid int32) {
+func initChildProcessPPID(initregs *arch.Registers, ppid int32) {
initregs.Regs[7] = uint64(ppid)
// R9 has to be set to 1 when creating stub process.
initregs.Regs[9] = 1
@@ -138,7 +138,7 @@ func initChildProcessPPID(initregs *syscall.PtraceRegs, ppid int32) {
//
// Note that this should only be called after verifying that the signalInfo has
// been generated by the kernel.
-func patchSignalInfo(regs *syscall.PtraceRegs, signalInfo *arch.SignalInfo) {
+func patchSignalInfo(regs *arch.Registers, signalInfo *arch.SignalInfo) {
if linux.Signal(signalInfo.Signo) == linux.SIGSYS {
signalInfo.Signo = int32(linux.SIGSEGV)
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-05 15:18:53 +0000