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

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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: 5e88573c0fde1b565d793948ee7ab54607c463b1
GitHub-Pull-Request: golang/sys#62
Reviewed-on: https://go-review.googlesource.com/c/sys/+/223697
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Ed Schouten
2020-03-16 21:47:34 +00:00
committed by Tobias Klauser
parent 9a0dfc3c55
commit 08c61614be
3 changed files with 8 additions and 4 deletions
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unix/syscall_freebsd.go
-4
View File
@@ -521,10 +521,6 @@ func PtraceGetFpRegs(pid int, fpregsout *FpReg) (err error) {
return ptrace(PTRACE_GETFPREGS, pid, uintptr(unsafe.Pointer(fpregsout)), 0) 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) { func PtraceGetRegs(pid int, regsout *Reg) (err error) {
return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0) return ptrace(PTRACE_GETREGS, pid, uintptr(unsafe.Pointer(regsout)), 0)
} }
unix/syscall_freebsd_386.go
+4
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@@ -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 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) { 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)} 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) err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
unix/syscall_freebsd_amd64.go
+4
View File
@@ -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 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) { 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)} 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) err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)