1 /* LTO declarations. 2 Copyright (C) 2009-2021 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 extern int lto_link_dump_id, decl_merge_dump_id, partition_dump_id; 55 56 /* Hash table entry to hold the start offset and length of an LTO 57 section in a .o file. */ 58 struct lto_section_slot 59 { 60 const char *name; 61 intptr_t start; 62 size_t len; 63 struct lto_section_slot *next; 64 }; 65 66 /* A list of section slots */ 67 struct lto_section_list 68 { 69 struct lto_section_slot *first, *last; 70 }; 71 72 extern unsigned int lto_option_lang_mask (void); 73 74 #endif /* LTO_H */ 75