binutils-gdb/bfd/elf32-spu.h

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/* SPU specific support for 32-bit ELF.
Copyright 2006, 2007, 2008 Free Software Foundation, Inc.
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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
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(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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */
/* Extra info kept for SPU sections. */
bfd/ * elf32-spu.c (struct spu_link_hash_table): Add stack_analysis and emit_stack_syms bitfields. (get_sym_h): Read all symbols if stack analysis will be done. (spu_elf_create_sections): Add stack_analysis and emit_stack_syms params, and stash in hash table. (is_hint): Split off from.. (is_branch): ..here. Adjust callers. (spu_elf_size_stubs): Add stack_analysis param. Arrange to read and keep all syms. (write_one_stub): Fix mem leak. (find_function_stack_adjust): New function. (sort_syms_syms, sort_syms_psecs): New vars. (sort_syms): New function. (struct call_info, struct function_info): New. (struct spu_elf_stack_info): New. (alloc_stack_info, maybe_insert_function, func_name): New functions. (is_nop, insns_at_end, check_function_ranges): Likewise. (find_function, insert_callee, mark_functions_via_relocs): Likewise. (pasted_function, interesting_section, discover_functions): Likewise. (mark_non_root, call_graph_traverse, build_call_tree): Likewise. (sum_stack, spu_elf_stack_analysis, spu_elf_final_link): Likewise. (bfd_elf32_bfd_final_link): Define. * elf32-spu.h (struct _spu_elf_section_data): Add stack_info field. (spu_elf_create_sections, spu_elf_size_stubs): Update prototypes. include/ * bfdlink.h (struct bfd_link_info): Add "info" and "minfo". ld/ * ldmain.c (link_callbacks): Init info and minfo fields. * ldmisc.c (minfo): Do nothing if no map file. * emultempl/spuelf.em (stack_analysis, emit_stack_syms): New vars. (spu_after_open): Adjust spu_elf_create_sections call. (spu_before_allocation): Likewise for spu_elf_size_stubs. (OPTION_SPU_STACK_ANALYSIS, OPTION_SPU_STACK_SYMS): Define. (PARSE_AND_LIST_LONGOPTS): Add new entries. (PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Likewise. * gen-doc.texi: Add @set for SPU and other missing targets. * ld.texinfo: Update man page selection to match gen-doc.texi. Document SPU features.
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struct spu_elf_stack_info;
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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;
bfd/ * elf32-spu.c (struct spu_link_hash_table): Add stack_analysis and emit_stack_syms bitfields. (get_sym_h): Read all symbols if stack analysis will be done. (spu_elf_create_sections): Add stack_analysis and emit_stack_syms params, and stash in hash table. (is_hint): Split off from.. (is_branch): ..here. Adjust callers. (spu_elf_size_stubs): Add stack_analysis param. Arrange to read and keep all syms. (write_one_stub): Fix mem leak. (find_function_stack_adjust): New function. (sort_syms_syms, sort_syms_psecs): New vars. (sort_syms): New function. (struct call_info, struct function_info): New. (struct spu_elf_stack_info): New. (alloc_stack_info, maybe_insert_function, func_name): New functions. (is_nop, insns_at_end, check_function_ranges): Likewise. (find_function, insert_callee, mark_functions_via_relocs): Likewise. (pasted_function, interesting_section, discover_functions): Likewise. (mark_non_root, call_graph_traverse, build_call_tree): Likewise. (sum_stack, spu_elf_stack_analysis, spu_elf_final_link): Likewise. (bfd_elf32_bfd_final_link): Define. * elf32-spu.h (struct _spu_elf_section_data): Add stack_info field. (spu_elf_create_sections, spu_elf_size_stubs): Update prototypes. include/ * bfdlink.h (struct bfd_link_info): Add "info" and "minfo". ld/ * ldmain.c (link_callbacks): Init info and minfo fields. * ldmisc.c (minfo): Do nothing if no map file. * emultempl/spuelf.em (stack_analysis, emit_stack_syms): New vars. (spu_after_open): Adjust spu_elf_create_sections call. (spu_before_allocation): Likewise for spu_elf_size_stubs. (OPTION_SPU_STACK_ANALYSIS, OPTION_SPU_STACK_SYMS): Define. (PARSE_AND_LIST_LONGOPTS): Add new entries. (PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Likewise. * gen-doc.texi: Add @set for SPU and other missing targets. * ld.texinfo: Update man page selection to match gen-doc.texi. Document SPU features.
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/* Info kept for output sections. */
struct {
/* Non-zero for overlay output sections. */
unsigned int ovl_index;
unsigned int ovl_buf;
} o;
} u;
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};
#define spu_elf_section_data(sec) \
((struct _spu_elf_section_data *) elf_section_data (sec))
struct _ovl_stream
{
const void *start;
const void *end;
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};
extern void spu_elf_plugin (int);
extern bfd_boolean spu_elf_open_builtin_lib (bfd **,
const struct _ovl_stream *);
extern bfd_boolean spu_elf_create_sections (struct bfd_link_info *, int, int);
extern bfd_boolean spu_elf_find_overlays (struct bfd_link_info *);
extern int spu_elf_size_stubs (struct bfd_link_info *,
void (*) (asection *, asection *, const char *),
int);
extern bfd_boolean spu_elf_build_stubs (struct bfd_link_info *, int);
bfd/ * elf32-spu.c: Include libiberty.h. (struct spu_link_hash_table): Add local_stire, overlay_fixed, reserved, non_ovly_stub, spu_elf_load_ovl_mgr, spu_elf_open_overlay_script, spu_elf_relink, auto_overlay fields. (AUTO_OVERLAY, AUTO_RELINK, OVERLAY_RODATA): Define. (needs_ovl_stub): Flip test so that call to non-function warning is emitted during relocate_section rather than earlier. (spu_elf_check_vma): Stash --auto-overlay parameters, and clear auto_overlay if no section exceeds local store. (struct call_info): Add count, max_depth, is_pasted fields. (struct function_info): Add rodata, last_caller, call_count, depth, new visit flags. (insert_callee): Increment call count. (copy_callee): New function. (mark_functions_via_relocs): Investigate all reloc types to count possible function pointer stubs for --auto-overlay. Track last_caller and increment function call_count. (pasted_function): Insert a "call" into call info for pasted section. (remove_cycles): Track max depth of calls. Don't emit call graph pruning warning for --auto-overlay. (build_call_tree): Don't transfer_calls for --auto-overlay. Adjust remove_cycles call. (sort_calls, sort_lib, sort_bfds): New functions. (struct _mos_param, struct _uos_param, struct _cl_param): New. (mark_overlay_section, unmark_overlay_section): New functions. (collect_lib_sectios, auto_ovl_lib_functions): New functions. (collect_overlays, find_pasted_call): New functions. (sum_stack): Deal with is_pasted "calls". Exit before printing when --auto-overlay. (spu_elf_auto_overlay): New function. (spu_elf_final_link): Call spu_elf_auto_overlay. * elf32-spu.h (spu_elf_check_vma): Update prototype. ld/ * emultempl/spuelf.em (auto_overlay, auto_overlay_file, auto_overlay_fixed, auto_overlay_reserved, my_argc, my_argv): New vars. (spu_before_allocation): Warn on --auto-overlay and existing overlays. (struct tflist, clean_tmp): Move. (new_tmp_file): New function, extracted from.. (embedded_spu_file): ..here. (spu_elf_open_overlay_script, spu_elf_relink): New function. (gld${EMULATION_NAME}_finish): Pass a bunch of --auto-overlay params. Warn on --auto-overlay and zero local store. (gld${EMULATION_NAME}_choose_target): New function to stash argv. (OPTION_SPU_AUTO_OVERLAY, OPTION_SPU_AUTO_RELINK, OPTION_SPU_OVERLAY_RODATA, OPTION_SPU_FIXED_SPACE, OPTION_SPU_RESERVED_SPACE, OPTION_SPU_NO_AUTO_OVERLAY): Define. (PARSE_AND_LIST_LONGOPTS): Add entries for new options. (PARSE_AND_LIST_OPTIONS): Likewise. (PARSE_AND_LIST_ARGS_CASES): Likewise. (LDEMUL_CHOOSE_TARGET): Define.
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extern asection *spu_elf_check_vma (struct bfd_link_info *, int,
unsigned int, unsigned int, unsigned int,
unsigned int, void (*) (void),
FILE *(*) (void), void (*) (void));