1 /* SPU specific support for 32-bit ELF. 2 3 Copyright (C) 2006-2016 Free Software Foundation, Inc. 4 5 This file is part of BFD, the Binary File Descriptor library. 6 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. 11 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. 16 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 Foundation, 19 Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 20 21 struct spu_elf_params 22 { 23 /* Stash various callbacks for --auto-overlay. */ 24 void (*place_spu_section) (asection *, asection *, const char *); 25 bfd_size_type (*spu_elf_load_ovl_mgr) (void); 26 FILE *(*spu_elf_open_overlay_script) (void); 27 void (*spu_elf_relink) (void); 28 29 /* Bit 0 set if --auto-overlay. 30 Bit 1 set if --auto-relink. 31 Bit 2 set if --overlay-rodata. */ 32 unsigned int auto_overlay : 3; 33 #define AUTO_OVERLAY 1 34 #define AUTO_RELINK 2 35 #define OVERLAY_RODATA 4 36 37 /* Type of overlays, enum _ovly_flavour. */ 38 unsigned int ovly_flavour : 1; 39 unsigned int compact_stub : 1; 40 41 /* Set if we should emit symbols for stubs. */ 42 unsigned int emit_stub_syms : 1; 43 44 /* Set if we want stubs on calls out of overlay regions to 45 non-overlay regions. */ 46 unsigned int non_overlay_stubs : 1; 47 48 /* Set if lr liveness analysis should be done. */ 49 unsigned int lrlive_analysis : 1; 50 51 /* Set if stack size analysis should be done. */ 52 unsigned int stack_analysis : 1; 53 54 /* Set if __stack_* syms will be emitted. */ 55 unsigned int emit_stack_syms : 1; 56 57 /* Set if non-icache code should be allowed in icache lines. */ 58 unsigned int non_ia_text : 1; 59 60 /* Set when the .fixup section should be generated. */ 61 unsigned int emit_fixups : 1; 62 63 /* Range of valid addresses for loadable sections. */ 64 bfd_vma local_store_lo; 65 bfd_vma local_store_hi; 66 67 /* Control --auto-overlay feature. */ 68 unsigned int num_lines; 69 unsigned int line_size; 70 unsigned int max_branch; 71 unsigned int auto_overlay_fixed; 72 unsigned int auto_overlay_reserved; 73 int extra_stack_space; 74 }; 75 76 /* Extra info kept for SPU sections. */ 77 78 struct spu_elf_stack_info; 79 80 struct _spu_elf_section_data 81 { 82 struct bfd_elf_section_data elf; 83 84 union { 85 /* Info kept for input sections. */ 86 struct { 87 /* Stack analysis info kept for this section. */ 88 struct spu_elf_stack_info *stack_info; 89 } i; 90 91 /* Info kept for output sections. */ 92 struct { 93 /* Non-zero for overlay output sections. */ 94 unsigned int ovl_index; 95 unsigned int ovl_buf; 96 } o; 97 } u; 98 }; 99 100 #define spu_elf_section_data(sec) \ 101 ((struct _spu_elf_section_data *) elf_section_data (sec)) 102 103 enum _ovly_flavour 104 { 105 ovly_normal, 106 ovly_soft_icache 107 }; 108 109 struct _ovl_stream 110 { 111 const void *start; 112 const void *end; 113 }; 114 115 extern void spu_elf_setup (struct bfd_link_info *, struct spu_elf_params *); 116 extern void spu_elf_plugin (int); 117 extern bfd_boolean spu_elf_open_builtin_lib (bfd **, 118 const struct _ovl_stream *); 119 extern bfd_boolean spu_elf_create_sections (struct bfd_link_info *); 120 extern bfd_boolean spu_elf_size_sections (bfd *, struct bfd_link_info *); 121 extern int spu_elf_find_overlays (struct bfd_link_info *); 122 extern int spu_elf_size_stubs (struct bfd_link_info *); 123 extern void spu_elf_place_overlay_data (struct bfd_link_info *); 124 extern asection *spu_elf_check_vma (struct bfd_link_info *); 125
