Mercurial > hg > CbC > CbC_gcc
comparison gcc/streamer-hooks.h @ 111:04ced10e8804
gcc 7
author | kono |
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date | Fri, 27 Oct 2017 22:46:09 +0900 |
parents | |
children | 84e7813d76e9 |
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68:561a7518be6b | 111:04ced10e8804 |
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1 /* Streamer hooks. Support for adding streamer-specific callbacks to | |
2 generic streaming routines. | |
3 | |
4 Copyright (C) 2011-2017 Free Software Foundation, Inc. | |
5 Contributed by Diego Novillo <dnovillo@google.com> | |
6 | |
7 This file is part of GCC. | |
8 | |
9 GCC is free software; you can redistribute it and/or modify it under | |
10 the terms of the GNU General Public License as published by the Free | |
11 Software Foundation; either version 3, or (at your option) any later | |
12 version. | |
13 | |
14 GCC is distributed in the hope that it will be useful, but WITHOUT ANY | |
15 WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
16 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
17 for more details. | |
18 | |
19 You should have received a copy of the GNU General Public License | |
20 along with GCC; see the file COPYING3. If not see | |
21 <http://www.gnu.org/licenses/>. */ | |
22 | |
23 #ifndef GCC_STREAMER_HOOKS_H | |
24 #define GCC_STREAMER_HOOKS_H | |
25 | |
26 /* Forward declarations to avoid including unnecessary headers. */ | |
27 struct output_block; | |
28 struct lto_input_block; | |
29 struct data_in; | |
30 | |
31 /* Streamer hooks. These functions do additional processing as | |
32 needed by the module. There are two types of callbacks, those that | |
33 replace the default behavior and those that supplement it. | |
34 | |
35 Hooks marked [REQ] are required to be set. Those marked [OPT] may | |
36 be NULL, if the streamer does not need to implement them. */ | |
37 struct streamer_hooks { | |
38 /* [REQ] Called by every tree streaming routine that needs to write | |
39 a tree node. The arguments are: output_block where to write the | |
40 node, the tree node to write and a boolean flag that should be true | |
41 if the caller wants to write a reference to the tree, instead of the | |
42 tree itself. The second boolean parameter specifies this for | |
43 the tree itself, the first for all siblings that are streamed. | |
44 The referencing mechanism is up to each streamer to implement. */ | |
45 void (*write_tree) (struct output_block *, tree, bool, bool); | |
46 | |
47 /* [REQ] Called by every tree streaming routine that needs to read | |
48 a tree node. It takes two arguments: an lto_input_block pointing | |
49 to the buffer where to read from and a data_in instance with tables | |
50 and descriptors needed by the unpickling routines. It returns the | |
51 tree instantiated from the stream. */ | |
52 tree (*read_tree) (struct lto_input_block *, struct data_in *); | |
53 | |
54 /* [REQ] Called by every streaming routine that needs to read a location. */ | |
55 void (*input_location) (location_t *, struct bitpack_d *, struct data_in *); | |
56 | |
57 /* [REQ] Called by every streaming routine that needs to write a location. */ | |
58 void (*output_location) (struct output_block *, struct bitpack_d *, location_t); | |
59 }; | |
60 | |
61 #define stream_write_tree(OB, EXPR, REF_P) \ | |
62 streamer_hooks.write_tree (OB, EXPR, REF_P, REF_P) | |
63 | |
64 #define stream_write_tree_shallow_non_ref(OB, EXPR, REF_P) \ | |
65 streamer_hooks.write_tree (OB, EXPR, REF_P, false) | |
66 | |
67 #define stream_read_tree(IB, DATA_IN) \ | |
68 streamer_hooks.read_tree (IB, DATA_IN) | |
69 | |
70 #define stream_input_location(LOCPTR, BP, DATA_IN) \ | |
71 streamer_hooks.input_location (LOCPTR, BP, DATA_IN) | |
72 | |
73 #define stream_output_location(OB, BP, LOC) \ | |
74 streamer_hooks.output_location (OB, BP, LOC) | |
75 | |
76 /* Streamer hooks. */ | |
77 extern struct streamer_hooks streamer_hooks; | |
78 | |
79 /* In streamer-hooks.c. */ | |
80 void streamer_hooks_init (void); | |
81 | |
82 #endif /* GCC_STREAMER_HOOKS_H */ |