xref: /dragonfly/contrib/gcc-8.0/gcc/lto/lto.h (revision ef2b2b9d)
1 /* LTO declarations.
2    Copyright (C) 2009-2018 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 
25 /* A file.  */
26 struct lto_file
27 {
28   /* The name of the file.  */
29   const char *filename;
30   /* The offset for the object inside an ar archive file (or zero).  */
31   off_t offset;
32 };
33 
34 /* In lto-lang.c  */
35 extern const char *resolution_file_name;
36 
37 /* In lto.c  */
38 extern tree lto_eh_personality (void);
39 extern void lto_main (void);
40 extern void lto_read_all_file_options (void);
41 
42 /* In lto-elf.c or lto-coff.c  */
43 extern lto_file *lto_obj_file_open (const char *filename, bool writable);
44 extern void lto_obj_file_close (lto_file *file);
45 struct lto_section_list;
46 extern htab_t lto_obj_build_section_table (lto_file *file, struct lto_section_list *list);
47 extern htab_t lto_obj_create_section_hash_table (void);
48 extern void lto_obj_begin_section (const char *name);
49 extern void lto_obj_append_data (const void *data, size_t len, void *block);
50 extern void lto_obj_end_section (void);
51 extern lto_file *lto_set_current_out_file (lto_file *file);
52 extern lto_file *lto_get_current_out_file (void);
53 
54 /* Hash table entry to hold the start offset and length of an LTO
55    section in a .o file.  */
56 struct lto_section_slot
57 {
58   const char *name;
59   intptr_t start;
60   size_t len;
61   struct lto_section_slot *next;
62 };
63 
64 /* A list of section slots */
65 struct lto_section_list
66 {
67   struct lto_section_slot *first, *last;
68 };
69 
70 #endif /* LTO_H */
71