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unix: implement Ptrace{Set,Get}Regs using PTRACE_{GET,SET}REGSET for Linux

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The same change was already done in CL 501756.

Fixes #60679.

Change-Id: I5d1f4ad89cabb0ac120b3d72876944fb3283ec6f
Reviewed-on: https://go-review.googlesource.com/c/sys/+/501795
Auto-Submit: Ian Lance Taylor <iant@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Run-TryBot: Ian Lance Taylor <iant@golang.org>
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: David Chase <drchase@google.com>
Reviewed-by: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Guoqi Chen
2023-06-09 14:43:47 +00:00
committed by Gopher Robot
parent 304f187cdb
commit 5059a07aa4
1 changed files with 9 additions and 2 deletions
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unix/syscall_linux.go
+9 -2
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@@ -12,6 +12,7 @@
package unix package unix
import ( import (
"debug/elf"
"encoding/binary" "encoding/binary"
"strconv" "strconv"
"syscall" "syscall"
@@ -1700,11 +1701,17 @@ func PtracePokeUser(pid int, addr uintptr, data []byte) (count int, err error) {
} }
func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) { func PtraceGetRegs(pid int, regsout *PtraceRegs) (err error) {
return ptracePtr(PTRACE_GETREGS, pid, 0, unsafe.Pointer(regsout)) var iov Iovec
iov.Base = (*byte)(unsafe.Pointer(regsout))
iov.SetLen(int(unsafe.Sizeof(*regsout)))
return ptracePtr(PTRACE_GETREGSET, pid, uintptr(elf.NT_PRSTATUS), unsafe.Pointer(&iov))
} }
func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) { func PtraceSetRegs(pid int, regs *PtraceRegs) (err error) {
return ptracePtr(PTRACE_SETREGS, pid, 0, unsafe.Pointer(regs)) var iov Iovec
iov.Base = (*byte)(unsafe.Pointer(regs))
iov.SetLen(int(unsafe.Sizeof(*regs)))
return ptracePtr(PTRACE_SETREGSET, pid, uintptr(elf.NT_PRSTATUS), unsafe.Pointer(&iov))
} }
func PtraceSetOptions(pid int, options int) (err error) { func PtraceSetOptions(pid int, options int) (err error) {