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

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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
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unix/syscall_freebsd_386.go
+1 -1
View File
@@ -61,5 +61,5 @@ func sendfile(outfd int, infd int, offset *int64, count int) (written int, err e
func Syscall9(num, a1, a2, a3, a4, a5, a6, a7, a8, a9 uintptr) (r1, r2 uintptr, err syscall.Errno)
func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
return ptrace(PT_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
return ptracePtr(PT_GETFSBASE, pid, unsafe.Pointer(fsbase), 0)
}