gcc/lto/lto.h

   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 int64_t lto_parse_hex (const char *p);
  72
  73 #endif /* LTO_H */