xref: /dragonfly/contrib/gcc-4.7/gcc/lto/lto.h (revision 9348a738)
1 /* LTO declarations.
2    Copyright 2009, 2010 Free Software Foundation, Inc.
3    Contributed by CodeSourcery, Inc.
4 
5 This file is part of GCC.
6 
7 GCC is free software; you can redistribute it and/or modify it under
8 the terms of the GNU General Public License as published by the Free
9 Software Foundation; either version 3, or (at your option) any later
10 version.
11 
12 GCC is distributed in the hope that it will be useful, but WITHOUT ANY
13 WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
15 for more details.
16 
17 You should have received a copy of the GNU General Public License
18 along with GCC; see the file COPYING3.  If not see
19 <http://www.gnu.org/licenses/>.  */
20 
21 #ifndef LTO_H
22 #define LTO_H
23 
24 #include "hashtab.h"
25 
26 /* A file.  */
27 typedef struct lto_file_struct
28 {
29   /* The name of the file.  */
30   const char *filename;
31   /* The offset for the object inside an ar archive file (or zero).  */
32   off_t offset;
33 } lto_file;
34 
35 /* In lto-lang.c  */
36 extern const char *resolution_file_name;
37 
38 /* In lto.c  */
39 extern tree lto_eh_personality (void);
40 extern void lto_main (void);
41 extern void lto_read_all_file_options (void);
42 
43 /* In lto-elf.c or lto-coff.c  */
44 extern lto_file *lto_obj_file_open (const char *filename, bool writable);
45 extern void lto_obj_file_close (lto_file *file);
46 struct lto_section_list;
47 extern htab_t lto_obj_build_section_table (lto_file *file, struct lto_section_list *list);
48 extern htab_t lto_obj_create_section_hash_table (void);
49 extern void lto_obj_begin_section (const char *name);
50 extern void lto_obj_append_data (const void *data, size_t len, void *block);
51 extern void lto_obj_end_section (void);
52 extern lto_file *lto_set_current_out_file (lto_file *file);
53 extern lto_file *lto_get_current_out_file (void);
54 
55 /* Hash table entry to hold the start offset and length of an LTO
56    section in a .o file.  */
57 struct lto_section_slot
58 {
59   const char *name;
60   intptr_t start;
61   size_t len;
62   struct lto_section_slot *next;
63 };
64 
65 /* A list of section slots */
66 struct lto_section_list
67 {
68   struct lto_section_slot *first, *last;
69 };
70 
71 #endif /* LTO_H */
72