1 /* SPU specific support for 32-bit ELF.
3 Copyright (C) 2006-2017 Free Software Foundation, Inc.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
20 MA 02110-1301, USA. */
24 /* Stash various callbacks for --auto-overlay. */
25 void (*place_spu_section) (asection *, asection *, const char *);
26 bfd_size_type (*spu_elf_load_ovl_mgr) (void);
27 FILE *(*spu_elf_open_overlay_script) (void);
28 void (*spu_elf_relink) (void);
30 /* Bit 0 set if --auto-overlay.
31 Bit 1 set if --auto-relink.
32 Bit 2 set if --overlay-rodata. */
33 unsigned int auto_overlay : 3;
34 #define AUTO_OVERLAY 1
36 #define OVERLAY_RODATA 4
38 /* Type of overlays, enum _ovly_flavour. */
39 unsigned int ovly_flavour : 1;
40 unsigned int compact_stub : 1;
42 /* Set if we should emit symbols for stubs. */
43 unsigned int emit_stub_syms : 1;
45 /* Set if we want stubs on calls out of overlay regions to
46 non-overlay regions. */
47 unsigned int non_overlay_stubs : 1;
49 /* Set if lr liveness analysis should be done. */
50 unsigned int lrlive_analysis : 1;
52 /* Set if stack size analysis should be done. */
53 unsigned int stack_analysis : 1;
55 /* Set if __stack_* syms will be emitted. */
56 unsigned int emit_stack_syms : 1;
58 /* Set if non-icache code should be allowed in icache lines. */
59 unsigned int non_ia_text : 1;
61 /* Set when the .fixup section should be generated. */
62 unsigned int emit_fixups : 1;
64 /* Range of valid addresses for loadable sections. */
65 bfd_vma local_store_lo;
66 bfd_vma local_store_hi;
68 /* Control --auto-overlay feature. */
69 unsigned int num_lines;
70 unsigned int line_size;
71 unsigned int max_branch;
72 unsigned int auto_overlay_fixed;
73 unsigned int auto_overlay_reserved;
74 int extra_stack_space;
77 /* Extra info kept for SPU sections. */
79 struct spu_elf_stack_info;
81 struct _spu_elf_section_data
83 struct bfd_elf_section_data elf;
86 /* Info kept for input sections. */
88 /* Stack analysis info kept for this section. */
89 struct spu_elf_stack_info *stack_info;
92 /* Info kept for output sections. */
94 /* Non-zero for overlay output sections. */
95 unsigned int ovl_index;
101 #define spu_elf_section_data(sec) \
102 ((struct _spu_elf_section_data *) elf_section_data (sec))
116 extern void spu_elf_setup (struct bfd_link_info *, struct spu_elf_params *);
117 extern void spu_elf_plugin (int);
118 extern bfd_boolean spu_elf_open_builtin_lib (bfd **,
119 const struct _ovl_stream *);
120 extern bfd_boolean spu_elf_create_sections (struct bfd_link_info *);
121 extern bfd_boolean spu_elf_size_sections (bfd *, struct bfd_link_info *);
122 extern int spu_elf_find_overlays (struct bfd_link_info *);
123 extern int spu_elf_size_stubs (struct bfd_link_info *);
124 extern void spu_elf_place_overlay_data (struct bfd_link_info *);
125 extern asection *spu_elf_check_vma (struct bfd_link_info *);