yield from C debug hook on a coroutine in LuaJIT 2.1 beta2

[Ye Xing <ealexing@...>]

Is it possible to yield form a debug hook on a coroutine in LuaJIT 2.1? 
I got an error "attempt to yield across C-call boundary." 

Here is the code:

//hook.c
//-----------------------------------------------------------
#include "lua.h"
#include "lauxlib.h"

static void hook(lua_State *L, lua_Debug *ar) {
	printf("hooked\n");
    lua_yield(L,0);
}

static int sethook(lua_State *L) {
    lua_State *L1 = lua_tothread(L, 1);
    lua_sethook(L1, hook, LUA_MASKLINE, 0);
    return 0;
}

int luaopen_hook(lua_State *L) {
    lua_pushcfunction(L, sethook);
    // lua_setglobal(L, "sethook");
    return 1;
}

--hook.lua
-----------------------------------------------------
local co = coroutine.create(function()
	print(1)
	print(2)
	print(3)
end)
local hook = require "hook"
hook(co)

print(coroutine.resume(co))



commands to compile the .so file
------------------------------------------------------
LUA_DIR=“./luajit-2.0/src"
LUA_LIB="luajit"

gcc -I$LUA_DIR -c hook.c -o hook.o
gcc -L$LUA_DIR -l$LUA_LIB hook.o -o hook.so -shared

It's on OS X 10.11.5 and Xcode 7.3.1