unix: add ptracePtr that accepts pointer arg as unsafe.Pointer

The existing ptrace wrapper accepts pointer argument as an uintptr which
often points to the memory allocated in Go. This violates unsafe.Pointer safety
rules.

For golang/go#58387

Change-Id: Ib3b4c50368725191f0862c6c7c6d46b0568523c7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/469835
Run-TryBot: Ian Lance Taylor <iant@google.com>
Reviewed-by: Bryan Mills <bcmills@google.com>
Run-TryBot: Bryan Mills <bcmills@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@google.com>
Auto-Submit: Ian Lance Taylor <iant@google.com>
This commit is contained in:
Dmitri Goutnik
2023-02-21 23:06:39 +00:00
committed by Gopher Robot
parent 6877dccfc2
commit 2977c7732d
22 changed files with 127 additions and 39 deletions
+4 -4
View File
@@ -21,12 +21,12 @@ type PtraceRegsMipsle struct {
// PtraceGetRegsMipsle fetches the registers used by mipsle binaries.
func PtraceGetRegsMipsle(pid int, regsout *PtraceRegsMipsle) error {
return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
return ptracePtr(PTRACE_GETREGS, pid, 0, unsafe.Pointer(regsout))
}
// PtraceSetRegsMipsle sets the registers used by mipsle binaries.
func PtraceSetRegsMipsle(pid int, regs *PtraceRegsMipsle) error {
return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
return ptracePtr(PTRACE_SETREGS, pid, 0, unsafe.Pointer(regs))
}
// PtraceRegsMips64le is the registers used by mips64le binaries.
@@ -42,10 +42,10 @@ type PtraceRegsMips64le struct {
// PtraceGetRegsMips64le fetches the registers used by mips64le binaries.
func PtraceGetRegsMips64le(pid int, regsout *PtraceRegsMips64le) error {
return ptrace(PTRACE_GETREGS, pid, 0, uintptr(unsafe.Pointer(regsout)))
return ptracePtr(PTRACE_GETREGS, pid, 0, unsafe.Pointer(regsout))
}
// PtraceSetRegsMips64le sets the registers used by mips64le binaries.
func PtraceSetRegsMips64le(pid int, regs *PtraceRegsMips64le) error {
return ptrace(PTRACE_SETREGS, pid, 0, uintptr(unsafe.Pointer(regs)))
return ptracePtr(PTRACE_SETREGS, pid, 0, unsafe.Pointer(regs))
}