1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
|
/*
* %CopyrightBegin%
*
* Copyright Ericsson AB 1996-2010. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
* compliance with the License. You should have received a copy of the
* Erlang Public License along with this software. If not, it can be
* retrieved online at http://www.erlang.org/.
*
* Software distributed under the License is distributed on an "AS IS"
* basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
* the License for the specific language governing rights and limitations
* under the License.
*
* %CopyrightEnd%
*/
#ifndef __EXPORT_H__
#define __EXPORT_H__
#ifndef __SYS_H__
#include "sys.h"
#endif
#ifndef __INDEX_H__
#include "index.h"
#endif
#include "code_ix.h"
/*
** Export entry
*/
typedef struct export
{
void* addressv[ERTS_NUM_CODE_IX]; /* Pointer to code for function. */
struct binary* match_prog_set; /* Match program for tracing. */
BeamInstr fake_op_func_info_for_hipe[2]; /* MUST be just before code[] */
/*
* code[0]: Tagged atom for module.
* code[1]: Tagged atom for function.
* code[2]: Arity (untagged integer).
* code[3]: This entry is 0 unless the 'address' field points to it.
* Threaded code instruction to load function
* (em_call_error_handler), execute BIF (em_apply_bif,
* em_apply_apply), or call a traced function
* (em_call_traced_function).
* code[4]: Function pointer to BIF function (for BIFs only)
* or pointer to threaded code if the module has an
* on_load function that has not been run yet.
* Otherwise: 0.
*/
BeamInstr code[5];
} Export;
void init_export_table(void);
void export_info(int, void *);
ERTS_GLB_INLINE Export* erts_active_export_entry(Eterm m, Eterm f, unsigned a);
Export* erts_export_put(Eterm mod, Eterm func, unsigned int arity);
Export* erts_export_get_or_make_stub(Eterm, Eterm, unsigned);
Export *export_list(int,ErtsCodeIndex);
int export_list_size(ErtsCodeIndex);
int export_table_sz(void);
int export_entries_sz(void);
Export *export_get(Export*);
void export_start_staging(void);
void export_end_staging(int commit);
extern erts_smp_rwmtx_t export_staging_lock;
#define export_write_lock() erts_smp_rwmtx_rwlock(&export_staging_lock)
#define export_write_unlock() erts_smp_rwmtx_rwunlock(&export_staging_lock)
#include "beam_load.h" /* For em_* extern declarations */
#define ExportIsBuiltIn(EntryPtr) \
(((EntryPtr)->addressv[erts_active_code_ix()] == (EntryPtr)->code + 3) && \
((EntryPtr)->code[3] == (BeamInstr) em_apply_bif))
#if ERTS_GLB_INLINE_INCL_FUNC_DEF
ERTS_GLB_INLINE Export*
erts_active_export_entry(Eterm m, Eterm f, unsigned int a)
{
extern Export* erts_find_export_entry(Eterm m, Eterm f, unsigned a, ErtsCodeIndex);
return erts_find_export_entry(m, f, a, erts_active_code_ix());
}
#endif /* ERTS_GLB_INLINE_INCL_FUNC_DEF */
#endif /* __EXPORT_H__ */
|
