unix: only declare PtraceGetFsBase() on x86-based platforms

Only x86-based CPUs have an FSBASE. The current code happens to build on FreeBSD/aarch64 and FreeBSD/arm, but that's only because we incorrectly declare PTRACE_GETFSBASE on those platforms. Change-Id: I128c91bcdb0704a210af13806c1cd285470b5eda GitHub-Last-Rev: 5e88573 GitHub-Pull-Request: #62 Reviewed-on: https://go-review.googlesource.com/c/sys/+/223697 Run-TryBot: Tobias Klauser <[email protected]> TryBot-Result: Gobot Gobot <[email protected]> Reviewed-by: Tobias Klauser <[email protected]>
golang · Mar 16, 2020 · 08c6161 · 08c6161
1 parent 9a0dfc3
commit 08c6161
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Showing 3 changed files with 8 additions and 4 deletions.
diff --git a/unix/syscall_freebsd.go b/unix/syscall_freebsd.go
@@ -521,10 +521,6 @@ func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) {
 	return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0)
 }
 
-func PtraceGetFsBase(pid int, fsbase *int64) (err error) {
-	return ptrace(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
-}
-
 func PtraceGetRegs(pid int, regsout *Reg) (err error) {
 	return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0)
 }

diff --git a/unix/syscall_freebsd_386.go b/unix/syscall_freebsd_386.go
@@ -55,6 +55,10 @@ 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(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
+}
+
 func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
 	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint32(countin)}
 	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)

diff --git a/unix/syscall_freebsd_amd64.go b/unix/syscall_freebsd_amd64.go
@@ -55,6 +55,10 @@ 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(PTRACE_GETFSBASE, pid, uintptr(unsafe.Pointer(fsbase)), 0)
+}
+
 func PtraceIO(req int, pid int, addr uintptr, out []byte, countin int) (count int, err error) {
 	ioDesc := PtraceIoDesc{Op: int32(req), Offs: (*byte)(unsafe.Pointer(addr)), Addr: (*byte)(unsafe.Pointer(&out[0])), Len: uint64(countin)}
 	err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)