unix: add ptrace support for FreeBSD
Change-Id: Iaf95e3e7bd3d33ad7e214c45ed87b9e967b16631
GitHub-Last-Rev: e0308dc7ad566b70922a499e81610a746afe84ac
GitHub-Pull-Request: golang/sys#34
Reviewed-on: https://go-review.googlesource.com/c/sys/+/179099
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>
diff --git a/unix/syscall_bsd.go b/unix/syscall_bsd.go
index 33c8b5f..41c33e9 100644
--- a/unix/syscall_bsd.go
+++ b/unix/syscall_bsd.go
@@ -86,6 +86,7 @@
shift = 8
exited = 0
+ killed = 9
stopped = 0x7F
)
@@ -112,6 +113,8 @@
func (w WaitStatus) Stopped() bool { return w&mask == stopped && syscall.Signal(w>>shift) != SIGSTOP }
+func (w WaitStatus) Killed() bool { return w&mask == killed && syscall.Signal(w>>shift) != SIGKILL }
+
func (w WaitStatus) Continued() bool { return w&mask == stopped && syscall.Signal(w>>shift) == SIGSTOP }
func (w WaitStatus) StopSignal() syscall.Signal {
diff --git a/unix/syscall_freebsd.go b/unix/syscall_freebsd.go
index 1b6abe1..c0dbbc6 100644
--- a/unix/syscall_freebsd.go
+++ b/unix/syscall_freebsd.go
@@ -521,6 +521,70 @@
return sendfile(outfd, infd, offset, count)
}
+//sys ptrace(request int, pid int, addr uintptr, data int) (err error)
+
+func PtraceAttach(pid int) (err error) {
+ return ptrace(PTRACE_ATTACH, pid, 0, 0)
+}
+
+func PtraceCont(pid int, signal int) (err error) {
+ return ptrace(PTRACE_CONT, pid, 1, signal)
+}
+
+func PtraceDetach(pid int) (err error) {
+ return ptrace(PTRACE_DETACH, pid, 1, 0)
+}
+
+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)
+}
+
+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: uint(countin)}
+ err = ptrace(PTRACE_IO, pid, uintptr(unsafe.Pointer(&ioDesc)), 0)
+ return int(ioDesc.Len), err
+}
+
+func PtraceLwpEvents(pid int, enable int) (err error) {
+ return ptrace(PTRACE_LWPEVENTS, pid, 0, enable)
+}
+
+func PtraceLwpInfo(pid int, info uintptr) (err error) {
+ return ptrace(PTRACE_LWPINFO, pid, info, int(unsafe.Sizeof(PtraceLwpInfoStruct{})))
+}
+
+func PtracePeekData(pid int, addr uintptr, out []byte) (count int, err error) {
+ return PtraceIO(PIOD_READ_D, pid, addr, out, SizeofLong)
+}
+
+func PtracePeekText(pid int, addr uintptr, out []byte) (count int, err error) {
+ return PtraceIO(PIOD_READ_I, pid, addr, out, SizeofLong)
+}
+
+func PtracePokeData(pid int, addr uintptr, data []byte) (count int, err error) {
+ return PtraceIO(PIOD_WRITE_D, pid, addr, data, SizeofLong)
+}
+
+func PtracePokeText(pid int, addr uintptr, data []byte) (count int, err error) {
+ return PtraceIO(PIOD_WRITE_I, pid, addr, data, SizeofLong)
+}
+
+func PtraceSetRegs(pid int, regs *Reg) (err error) {
+ return ptrace(PTRACE_SETREGS, pid, uintptr(unsafe.Pointer(regs)), 0)
+}
+
+func PtraceSingleStep(pid int) (err error) {
+ return ptrace(PTRACE_SINGLESTEP, pid, 1, 0)
+}
+
/*
* Exposed directly
*/
diff --git a/unix/types_freebsd.go b/unix/types_freebsd.go
index 7470798..a121dc3 100644
--- a/unix/types_freebsd.go
+++ b/unix/types_freebsd.go
@@ -243,11 +243,55 @@
// Ptrace requests
const (
- PTRACE_TRACEME = C.PT_TRACE_ME
- PTRACE_CONT = C.PT_CONTINUE
- PTRACE_KILL = C.PT_KILL
+ PTRACE_ATTACH = C.PT_ATTACH
+ PTRACE_CONT = C.PT_CONTINUE
+ PTRACE_DETACH = C.PT_DETACH
+ PTRACE_GETFPREGS = C.PT_GETFPREGS
+ PTRACE_GETFSBASE = C.PT_GETFSBASE
+ PTRACE_GETLWPLIST = C.PT_GETLWPLIST
+ PTRACE_GETNUMLWPS = C.PT_GETNUMLWPS
+ PTRACE_GETREGS = C.PT_GETREGS
+ PTRACE_GETXSTATE = C.PT_GETXSTATE
+ PTRACE_IO = C.PT_IO
+ PTRACE_KILL = C.PT_KILL
+ PTRACE_LWPEVENTS = C.PT_LWP_EVENTS
+ PTRACE_LWPINFO = C.PT_LWPINFO
+ PTRACE_SETFPREGS = C.PT_SETFPREGS
+ PTRACE_SETREGS = C.PT_SETREGS
+ PTRACE_SINGLESTEP = C.PT_STEP
+ PTRACE_TRACEME = C.PT_TRACE_ME
)
+const (
+ PIOD_READ_D = C.PIOD_READ_D
+ PIOD_WRITE_D = C.PIOD_WRITE_D
+ PIOD_READ_I = C.PIOD_READ_I
+ PIOD_WRITE_I = C.PIOD_WRITE_I
+)
+
+const (
+ PL_FLAG_BORN = C.PL_FLAG_BORN
+ PL_FLAG_EXITED = C.PL_FLAG_EXITED
+ PL_FLAG_SI = C.PL_FLAG_SI
+)
+
+const (
+ TRAP_BRKPT = C.TRAP_BRKPT
+ TRAP_TRACE = C.TRAP_TRACE
+)
+
+type PtraceLwpInfoStruct C.struct_ptrace_lwpinfo
+
+type __Siginfo C.struct___siginfo
+
+type Sigset_t C.sigset_t
+
+type Reg C.struct_reg
+
+type FpReg C.struct_fpreg
+
+type PtraceIoDesc C.struct_ptrace_io_desc
+
// Events (kqueue, kevent)
type Kevent_t C.struct_kevent_freebsd11
diff --git a/unix/zsyscall_freebsd_386.go b/unix/zsyscall_freebsd_386.go
index 2707c01..a783306 100644
--- a/unix/zsyscall_freebsd_386.go
+++ b/unix/zsyscall_freebsd_386.go
@@ -387,6 +387,16 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func ptrace(request int, pid int, addr uintptr, data int) (err error) {
+ _, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Getcwd(buf []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
diff --git a/unix/zsyscall_freebsd_amd64.go b/unix/zsyscall_freebsd_amd64.go
index 8e3c0ce..f995520 100644
--- a/unix/zsyscall_freebsd_amd64.go
+++ b/unix/zsyscall_freebsd_amd64.go
@@ -387,6 +387,16 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func ptrace(request int, pid int, addr uintptr, data int) (err error) {
+ _, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Getcwd(buf []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
diff --git a/unix/zsyscall_freebsd_arm.go b/unix/zsyscall_freebsd_arm.go
index 641f86a..d681acd 100644
--- a/unix/zsyscall_freebsd_arm.go
+++ b/unix/zsyscall_freebsd_arm.go
@@ -387,6 +387,16 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func ptrace(request int, pid int, addr uintptr, data int) (err error) {
+ _, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func Getcwd(buf []byte) (n int, err error) {
var _p0 unsafe.Pointer
if len(buf) > 0 {
diff --git a/unix/zsyscall_freebsd_arm64.go b/unix/zsyscall_freebsd_arm64.go
index 68fbccf..5049b2e 100644
--- a/unix/zsyscall_freebsd_arm64.go
+++ b/unix/zsyscall_freebsd_arm64.go
@@ -404,6 +404,16 @@
// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+func ptrace(request int, pid int, addr uintptr, data int) (err error) {
+ _, _, e1 := Syscall6(SYS_PTRACE, uintptr(request), uintptr(pid), uintptr(addr), uintptr(data), 0, 0)
+ if e1 != 0 {
+ err = errnoErr(e1)
+ }
+ return
+}
+
+// THIS FILE IS GENERATED BY THE COMMAND AT THE TOP; DO NOT EDIT
+
func ioctl(fd int, req uint, arg uintptr) (err error) {
_, _, e1 := Syscall(SYS_IOCTL, uintptr(fd), uintptr(req), uintptr(arg))
if e1 != 0 {
diff --git a/unix/ztypes_freebsd_386.go b/unix/ztypes_freebsd_386.go
index 0edc540..7312e95 100644
--- a/unix/ztypes_freebsd_386.go
+++ b/unix/ztypes_freebsd_386.go
@@ -324,11 +324,108 @@
)
const (
- PTRACE_TRACEME = 0x0
- PTRACE_CONT = 0x7
- PTRACE_KILL = 0x8
+ PTRACE_ATTACH = 0xa
+ PTRACE_CONT = 0x7
+ PTRACE_DETACH = 0xb
+ PTRACE_GETFPREGS = 0x23
+ PTRACE_GETFSBASE = 0x47
+ PTRACE_GETLWPLIST = 0xf
+ PTRACE_GETNUMLWPS = 0xe
+ PTRACE_GETREGS = 0x21
+ PTRACE_GETXSTATE = 0x45
+ PTRACE_IO = 0xc
+ PTRACE_KILL = 0x8
+ PTRACE_LWPEVENTS = 0x18
+ PTRACE_LWPINFO = 0xd
+ PTRACE_SETFPREGS = 0x24
+ PTRACE_SETREGS = 0x22
+ PTRACE_SINGLESTEP = 0x9
+ PTRACE_TRACEME = 0x0
)
+const (
+ PIOD_READ_D = 0x1
+ PIOD_WRITE_D = 0x2
+ PIOD_READ_I = 0x3
+ PIOD_WRITE_I = 0x4
+)
+
+const (
+ PL_FLAG_BORN = 0x100
+ PL_FLAG_EXITED = 0x200
+ PL_FLAG_SI = 0x20
+)
+
+const (
+ TRAP_BRKPT = 0x1
+ TRAP_TRACE = 0x2
+)
+
+type PtraceLwpInfoStruct struct {
+ Lwpid int32
+ Event int32
+ Flags int32
+ Sigmask Sigset_t
+ Siglist Sigset_t
+ Siginfo __Siginfo
+ Tdname [20]int8
+ Child_pid int32
+ Syscall_code uint32
+ Syscall_narg uint32
+}
+
+type __Siginfo struct {
+ Signo int32
+ Errno int32
+ Code int32
+ Pid int32
+ Uid uint32
+ Status int32
+ Addr *byte
+ Value [4]byte
+ X_reason [32]byte
+}
+
+type Sigset_t struct {
+ Val [4]uint32
+}
+
+type Reg struct {
+ Fs uint32
+ Es uint32
+ Ds uint32
+ Edi uint32
+ Esi uint32
+ Ebp uint32
+ Isp uint32
+ Ebx uint32
+ Edx uint32
+ Ecx uint32
+ Eax uint32
+ Trapno uint32
+ Err uint32
+ Eip uint32
+ Cs uint32
+ Eflags uint32
+ Esp uint32
+ Ss uint32
+ Gs uint32
+}
+
+type FpReg struct {
+ Env [7]uint32
+ Acc [8][10]uint8
+ Ex_sw uint32
+ Pad [64]uint8
+}
+
+type PtraceIoDesc struct {
+ Op int32
+ Offs *byte
+ Addr *byte
+ Len uint
+}
+
type Kevent_t struct {
Ident uint32
Filter int16
diff --git a/unix/ztypes_freebsd_amd64.go b/unix/ztypes_freebsd_amd64.go
index 8881ce8..29ba2f5 100644
--- a/unix/ztypes_freebsd_amd64.go
+++ b/unix/ztypes_freebsd_amd64.go
@@ -322,11 +322,115 @@
)
const (
- PTRACE_TRACEME = 0x0
- PTRACE_CONT = 0x7
- PTRACE_KILL = 0x8
+ PTRACE_ATTACH = 0xa
+ PTRACE_CONT = 0x7
+ PTRACE_DETACH = 0xb
+ PTRACE_GETFPREGS = 0x23
+ PTRACE_GETFSBASE = 0x47
+ PTRACE_GETLWPLIST = 0xf
+ PTRACE_GETNUMLWPS = 0xe
+ PTRACE_GETREGS = 0x21
+ PTRACE_GETXSTATE = 0x45
+ PTRACE_IO = 0xc
+ PTRACE_KILL = 0x8
+ PTRACE_LWPEVENTS = 0x18
+ PTRACE_LWPINFO = 0xd
+ PTRACE_SETFPREGS = 0x24
+ PTRACE_SETREGS = 0x22
+ PTRACE_SINGLESTEP = 0x9
+ PTRACE_TRACEME = 0x0
)
+const (
+ PIOD_READ_D = 0x1
+ PIOD_WRITE_D = 0x2
+ PIOD_READ_I = 0x3
+ PIOD_WRITE_I = 0x4
+)
+
+const (
+ PL_FLAG_BORN = 0x100
+ PL_FLAG_EXITED = 0x200
+ PL_FLAG_SI = 0x20
+)
+
+const (
+ TRAP_BRKPT = 0x1
+ TRAP_TRACE = 0x2
+)
+
+type PtraceLwpInfoStruct struct {
+ Lwpid int32
+ Event int32
+ Flags int32
+ Sigmask Sigset_t
+ Siglist Sigset_t
+ Siginfo __Siginfo
+ Tdname [20]int8
+ Child_pid int32
+ Syscall_code uint32
+ Syscall_narg uint32
+}
+
+type __Siginfo struct {
+ Signo int32
+ Errno int32
+ Code int32
+ Pid int32
+ Uid uint32
+ Status int32
+ Addr *byte
+ Value [8]byte
+ _ [40]byte
+}
+
+type Sigset_t struct {
+ Val [4]uint32
+}
+
+type Reg struct {
+ R15 int64
+ R14 int64
+ R13 int64
+ R12 int64
+ R11 int64
+ R10 int64
+ R9 int64
+ R8 int64
+ Rdi int64
+ Rsi int64
+ Rbp int64
+ Rbx int64
+ Rdx int64
+ Rcx int64
+ Rax int64
+ Trapno uint32
+ Fs uint16
+ Gs uint16
+ Err uint32
+ Es uint16
+ Ds uint16
+ Rip int64
+ Cs int64
+ Rflags int64
+ Rsp int64
+ Ss int64
+}
+
+type FpReg struct {
+ Env [4]uint64
+ Acc [8][16]uint8
+ Xacc [16][16]uint8
+ Spare [12]uint64
+}
+
+type PtraceIoDesc struct {
+ Op int32
+ Offs *byte
+ Addr *byte
+ Len uint
+}
+
type Kevent_t struct {
Ident uint64
Filter int16
diff --git a/unix/ztypes_freebsd_arm.go b/unix/ztypes_freebsd_arm.go
index fc71399..b4090ef 100644
--- a/unix/ztypes_freebsd_arm.go
+++ b/unix/ztypes_freebsd_arm.go
@@ -322,11 +322,92 @@
)
const (
- PTRACE_TRACEME = 0x0
- PTRACE_CONT = 0x7
- PTRACE_KILL = 0x8
+ PTRACE_ATTACH = 0xa
+ PTRACE_CONT = 0x7
+ PTRACE_DETACH = 0xb
+ PTRACE_GETFPREGS = 0x23
+ PTRACE_GETFSBASE = 0x47
+ PTRACE_GETLWPLIST = 0xf
+ PTRACE_GETNUMLWPS = 0xe
+ PTRACE_GETREGS = 0x21
+ PTRACE_GETXSTATE = 0x45
+ PTRACE_IO = 0xc
+ PTRACE_KILL = 0x8
+ PTRACE_LWPEVENTS = 0x18
+ PTRACE_LWPINFO = 0xd
+ PTRACE_SETFPREGS = 0x24
+ PTRACE_SETREGS = 0x22
+ PTRACE_SINGLESTEP = 0x9
+ PTRACE_TRACEME = 0x0
)
+const (
+ PIOD_READ_D = 0x1
+ PIOD_WRITE_D = 0x2
+ PIOD_READ_I = 0x3
+ PIOD_WRITE_I = 0x4
+)
+
+const (
+ PL_FLAG_BORN = 0x100
+ PL_FLAG_EXITED = 0x200
+ PL_FLAG_SI = 0x20
+)
+
+const (
+ TRAP_BRKPT = 0x1
+ TRAP_TRACE = 0x2
+)
+
+type PtraceLwpInfoStruct struct {
+ Lwpid int32
+ Event int32
+ Flags int32
+ Sigmask Sigset_t
+ Siglist Sigset_t
+ Siginfo __Siginfo
+ Tdname [20]int8
+ Child_pid int32
+ Syscall_code uint32
+ Syscall_narg uint32
+}
+
+type __Siginfo struct {
+ Signo int32
+ Errno int32
+ Code int32
+ Pid int32
+ Uid uint32
+ Status int32
+ Addr *byte
+ Value [4]byte
+ X_reason [32]byte
+}
+
+type Sigset_t struct {
+ Val [4]uint32
+}
+
+type Reg struct {
+ R [13]uint32
+ R_sp uint32
+ R_lr uint32
+ R_pc uint32
+ R_cpsr uint32
+}
+
+type FpReg struct {
+ Fpr_fpsr uint32
+ Fpr [8][3]uint32
+}
+
+type PtraceIoDesc struct {
+ Op int32
+ Offs *byte
+ Addr *byte
+ Len uint
+}
+
type Kevent_t struct {
Ident uint32
Filter int16
diff --git a/unix/ztypes_freebsd_arm64.go b/unix/ztypes_freebsd_arm64.go
index 5a0753e..1542a87 100644
--- a/unix/ztypes_freebsd_arm64.go
+++ b/unix/ztypes_freebsd_arm64.go
@@ -322,11 +322,93 @@
)
const (
- PTRACE_TRACEME = 0x0
- PTRACE_CONT = 0x7
- PTRACE_KILL = 0x8
+ PTRACE_ATTACH = 0xa
+ PTRACE_CONT = 0x7
+ PTRACE_DETACH = 0xb
+ PTRACE_GETFPREGS = 0x23
+ PTRACE_GETFSBASE = 0x47
+ PTRACE_GETLWPLIST = 0xf
+ PTRACE_GETNUMLWPS = 0xe
+ PTRACE_GETREGS = 0x21
+ PTRACE_GETXSTATE = 0x45
+ PTRACE_IO = 0xc
+ PTRACE_KILL = 0x8
+ PTRACE_LWPEVENTS = 0x18
+ PTRACE_LWPINFO = 0xd
+ PTRACE_SETFPREGS = 0x24
+ PTRACE_SETREGS = 0x22
+ PTRACE_SINGLESTEP = 0x9
+ PTRACE_TRACEME = 0x0
)
+const (
+ PIOD_READ_D = 0x1
+ PIOD_WRITE_D = 0x2
+ PIOD_READ_I = 0x3
+ PIOD_WRITE_I = 0x4
+)
+
+const (
+ PL_FLAG_BORN = 0x100
+ PL_FLAG_EXITED = 0x200
+ PL_FLAG_SI = 0x20
+)
+
+const (
+ TRAP_BRKPT = 0x1
+ TRAP_TRACE = 0x2
+)
+
+type PtraceLwpInfoStruct struct {
+ Lwpid int32
+ Event int32
+ Flags int32
+ Sigmask Sigset_t
+ Siglist Sigset_t
+ Siginfo __Siginfo
+ Tdname [20]int8
+ Child_pid int32
+ Syscall_code uint32
+ Syscall_narg uint32
+}
+
+type __Siginfo struct {
+ Signo int32
+ Errno int32
+ Code int32
+ Pid int32
+ Uid uint32
+ Status int32
+ Addr *byte
+ Value [8]byte
+ X_reason [40]byte
+}
+
+type Sigset_t struct {
+ Val [4]uint32
+}
+
+type Reg struct {
+ X [30]uint64
+ Lr uint64
+ Sp uint64
+ Elr uint64
+ Spsr uint32
+}
+
+type FpReg struct {
+ Fp_q [32]uint128
+ Fp_sr uint32
+ Fp_cr uint32
+}
+
+type PtraceIoDesc struct {
+ Op int32
+ Offs *byte
+ Addr *byte
+ Len uint
+}
+
type Kevent_t struct {
Ident uint64
Filter int16
