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/* SPU specific support for 32-bit ELF.
Copyright (C) 2006-2021 Free Software Foundation, Inc.
This file is part of BFD, the Binary File Descriptor library.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
MA 02110-1301, USA. */
struct spu_elf_params
{
/* Stash various callbacks for --auto-overlay. */
void (*place_spu_section) (asection *, asection *, const char *);
bfd_size_type (*spu_elf_load_ovl_mgr) (void);
FILE *(*spu_elf_open_overlay_script) (void);
void (*spu_elf_relink) (void);
/* Bit 0 set if --auto-overlay.
Bit 1 set if --auto-relink.
Bit 2 set if --overlay-rodata. */
unsigned int auto_overlay : 3;
#define AUTO_OVERLAY 1
#define AUTO_RELINK 2
#define OVERLAY_RODATA 4
/* Type of overlays, enum _ovly_flavour. */
unsigned int ovly_flavour : 1;
unsigned int compact_stub : 1;
/* Set if we should emit symbols for stubs. */
unsigned int emit_stub_syms : 1;
/* Set if we want stubs on calls out of overlay regions to
non-overlay regions. */
unsigned int non_overlay_stubs : 1;
/* Set if lr liveness analysis should be done. */
unsigned int lrlive_analysis : 1;
/* Set if stack size analysis should be done. */
unsigned int stack_analysis : 1;
/* Set if __stack_* syms will be emitted. */
unsigned int emit_stack_syms : 1;
/* Set if non-icache code should be allowed in icache lines. */
unsigned int non_ia_text : 1;
/* Set when the .fixup section should be generated. */
unsigned int emit_fixups : 1;
/* Range of valid addresses for loadable sections. */
bfd_vma local_store_lo;
bfd_vma local_store_hi;
/* Control --auto-overlay feature. */
unsigned int num_lines;
unsigned int line_size;
unsigned int max_branch;
unsigned int auto_overlay_fixed;
unsigned int auto_overlay_reserved;
int extra_stack_space;
};
/* Extra info kept for SPU sections. */
struct spu_elf_stack_info;
struct _spu_elf_section_data
{
struct bfd_elf_section_data elf;
union {
/* Info kept for input sections. */
struct {
/* Stack analysis info kept for this section. */
struct spu_elf_stack_info *stack_info;
} i;
/* Info kept for output sections. */
struct {
/* Non-zero for overlay output sections. */
unsigned int ovl_index;
unsigned int ovl_buf;
} o;
} u;
};
#define spu_elf_section_data(sec) \
((struct _spu_elf_section_data *) elf_section_data (sec))
enum _ovly_flavour
{
ovly_normal,
ovly_soft_icache
};
struct _ovl_stream
{
const void *start;
const void *end;
};
extern void spu_elf_setup (struct bfd_link_info *, struct spu_elf_params *);
extern void spu_elf_plugin (int);
extern bool spu_elf_open_builtin_lib (bfd **, const struct _ovl_stream *);
extern bool spu_elf_create_sections (struct bfd_link_info *);
extern bool spu_elf_size_sections (bfd *, struct bfd_link_info *);
extern int spu_elf_find_overlays (struct bfd_link_info *);
extern int spu_elf_size_stubs (struct bfd_link_info *);
extern void spu_elf_place_overlay_data (struct bfd_link_info *);
extern asection *spu_elf_check_vma (struct bfd_link_info *);
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