1 /*
2 ** Trace management.
3 ** Copyright (C) 2005-2016 Mike Pall. See Copyright Notice in luajit.h
4 */
5 
6 #ifndef _LJ_TRACE_H
7 #define _LJ_TRACE_H
8 
9 #include "lj_obj.h"
10 
11 #if LJ_HASJIT
12 #include "lj_jit.h"
13 #include "lj_dispatch.h"
14 
15 /* Trace errors. */
16 typedef enum {
17 #define TREDEF(name, msg)	LJ_TRERR_##name,
18 #include "lj_traceerr.h"
19   LJ_TRERR__MAX
20 } TraceError;
21 
22 LJ_FUNC_NORET void lj_trace_err(jit_State *J, TraceError e);
23 LJ_FUNC_NORET void lj_trace_err_info(jit_State *J, TraceError e);
24 
25 /* Trace management. */
26 LJ_FUNC void LJ_FASTCALL lj_trace_free(global_State *g, GCtrace *T);
27 LJ_FUNC void lj_trace_reenableproto(GCproto *pt);
28 LJ_FUNC void lj_trace_flushproto(global_State *g, GCproto *pt);
29 LJ_FUNC void lj_trace_flush(jit_State *J, TraceNo traceno);
30 LJ_FUNC int lj_trace_flushall(lua_State *L);
31 LJ_FUNC void lj_trace_initstate(global_State *g);
32 LJ_FUNC void lj_trace_freestate(global_State *g);
33 
34 /* Event handling. */
35 LJ_FUNC void lj_trace_ins(jit_State *J, const BCIns *pc);
36 LJ_FUNCA void LJ_FASTCALL lj_trace_hot(jit_State *J, const BCIns *pc);
37 LJ_FUNCA void LJ_FASTCALL lj_trace_stitch(jit_State *J, const BCIns *pc);
38 LJ_FUNCA int LJ_FASTCALL lj_trace_exit(jit_State *J, void *exptr);
39 
40 /* Signal asynchronous abort of trace or end of trace. */
41 #define lj_trace_abort(g)	(G2J(g)->state &= ~LJ_TRACE_ACTIVE)
42 #define lj_trace_end(J)		(J->state = LJ_TRACE_END)
43 
44 #else
45 
46 #define lj_trace_flushall(L)	(UNUSED(L), 0)
47 #define lj_trace_initstate(g)	UNUSED(g)
48 #define lj_trace_freestate(g)	UNUSED(g)
49 #define lj_trace_abort(g)	UNUSED(g)
50 #define lj_trace_end(J)		UNUSED(J)
51 
52 #endif
53 
54 #endif
55