mirror of
https://github.com/darlinghq/darling-gdb.git
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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.
This commit is contained in:
Alan Modra
parent
a540244da6
commit
49fa1e1518
@ -1,3 +1,30 @@
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2007-04-30 Alan Modra <amodra@bigpond.net.au>
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* elf32-spu.c (struct spu_link_hash_table): Add stack_analysis
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and emit_stack_syms bitfields.
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(get_sym_h): Read all symbols if stack analysis will be done.
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(spu_elf_create_sections): Add stack_analysis and emit_stack_syms
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params, and stash in hash table.
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(is_hint): Split off from..
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(is_branch): ..here. Adjust callers.
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(spu_elf_size_stubs): Add stack_analysis param. Arrange to read
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and keep all syms.
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(write_one_stub): Fix mem leak.
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(find_function_stack_adjust): New function.
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(sort_syms_syms, sort_syms_psecs): New vars.
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(sort_syms): New function.
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(struct call_info, struct function_info): New.
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(struct spu_elf_stack_info): New.
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(alloc_stack_info, maybe_insert_function, func_name): New functions.
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(is_nop, insns_at_end, check_function_ranges): Likewise.
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(find_function, insert_callee, mark_functions_via_relocs): Likewise.
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(pasted_function, interesting_section, discover_functions): Likewise.
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(mark_non_root, call_graph_traverse, build_call_tree): Likewise.
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(sum_stack, spu_elf_stack_analysis, spu_elf_final_link): Likewise.
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(bfd_elf32_bfd_final_link): Define.
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* elf32-spu.h (struct _spu_elf_section_data): Add stack_info field.
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(spu_elf_create_sections, spu_elf_size_stubs): Update prototypes.
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2007-04-28 Sergey Rogozhkin <rogozhkin@niisi.msk.ru>
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* elfxx-mips.c (mips_elf_create_dynamic_relocation): Don't access
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1264
bfd/elf32-spu.c
1264
bfd/elf32-spu.c
File diff suppressed because it is too large
Load Diff
@ -20,10 +20,16 @@
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/* Extra info kept for SPU sections. */
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struct spu_elf_stack_info;
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struct _spu_elf_section_data
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{
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struct bfd_elf_section_data elf;
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/* Stack analysis info kept for this section. */
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struct spu_elf_stack_info *stack_info;
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/* Non-zero for overlay output sections. */
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unsigned int ovl_index;
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};
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@ -41,9 +47,9 @@ extern void spu_elf_plugin (int);
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extern bfd_boolean spu_elf_open_builtin_lib (bfd **,
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const struct _ovl_stream *);
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extern bfd_boolean spu_elf_create_sections (bfd *,
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struct bfd_link_info *);
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struct bfd_link_info *, int, int);
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extern bfd_boolean spu_elf_find_overlays (bfd *, struct bfd_link_info *);
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extern bfd_boolean spu_elf_size_stubs (bfd *, struct bfd_link_info *, int,
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extern bfd_boolean spu_elf_size_stubs (bfd *, struct bfd_link_info *, int, int,
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asection **, asection **,
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asection **);
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extern bfd_boolean spu_elf_build_stubs (struct bfd_link_info *, int,
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@ -1,3 +1,7 @@
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2007-04-30 Alan Modra <amodra@bigpond.net.au>
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* bfdlink.h (struct bfd_link_info): Add "info" and "minfo".
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2007-04-25 Mark Mitchell <mark@codesourcery.com>
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* demangle.h: Change license to LGPL + exception.
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@ -1,6 +1,6 @@
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/* bfdlink.h -- header file for BFD link routines
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Copyright 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002,
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2003, 2004, 2005 Free Software Foundation, Inc.
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2003, 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
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Written by Steve Chamberlain and Ian Lance Taylor, Cygnus Support.
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This file is part of BFD, the Binary File Descriptor library.
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@ -455,8 +455,8 @@ struct bfd_link_info
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struct bfd_elf_dynamic_list *dynamic_list;
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};
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/* This structures holds a set of callback functions. These are
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called by the BFD linker routines. Except for einfo, the first
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/* This structures holds a set of callback functions. These are called
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by the BFD linker routines. Except for the info functions, the first
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argument to each callback function is the bfd_link_info structure
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being used and each function returns a boolean value. If the
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function returns FALSE, then the BFD function which called it should
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@ -568,9 +568,15 @@ struct bfd_link_callbacks
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bfd_boolean (*notice)
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(struct bfd_link_info *, const char *name,
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bfd *abfd, asection *section, bfd_vma address);
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/* General link info message. */
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/* Error or warning link info message. */
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void (*einfo)
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(const char *fmt, ...);
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/* General link info message. */
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void (*info)
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(const char *fmt, ...);
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/* Message to be printed in linker map file. */
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void (*minfo)
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(const char *fmt, ...);
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/* This callback provides a chance for users of the BFD library to
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override its decision about whether to place two adjacent sections
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into the same segment. */
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14
ld/ChangeLog
14
ld/ChangeLog
@ -1,3 +1,17 @@
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2007-04-30 Alan Modra <amodra@bigpond.net.au>
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* ldmain.c (link_callbacks): Init info and minfo fields.
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* ldmisc.c (minfo): Do nothing if no map file.
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* emultempl/spuelf.em (stack_analysis, emit_stack_syms): New vars.
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(spu_after_open): Adjust spu_elf_create_sections call.
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(spu_before_allocation): Likewise for spu_elf_size_stubs.
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(OPTION_SPU_STACK_ANALYSIS, OPTION_SPU_STACK_SYMS): Define.
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(PARSE_AND_LIST_LONGOPTS): Add new entries.
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(PARSE_AND_LIST_OPTIONS, PARSE_AND_LIST_ARGS_CASES): Likewise.
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* gen-doc.texi: Add @set for SPU and other missing targets.
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* ld.texinfo: Update man page selection to match gen-doc.texi.
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Document SPU features.
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2007-04-28 Alan Modra <amodra@bigpond.net.au>
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* ldcref.c (struct cref_hash_entry): Make "demangled" const.
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@ -34,6 +34,12 @@ static int non_overlay_stubs = 0;
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/* Whether to emit symbols for stubs. */
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static int emit_stub_syms = 0;
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/* Non-zero to perform stack space analysis. */
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static int stack_analysis = 0;
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/* Whether to emit symbols with stack requirements for each function. */
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static int emit_stack_syms = 0;
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/* Range of valid addresses for loadable sections. */
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static bfd_vma local_store_lo = 0;
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static bfd_vma local_store_hi = 0x3ffff;
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@ -70,7 +76,8 @@ spu_after_open (void)
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if (is_spu_target ()
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&& !link_info.relocatable
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&& link_info.input_bfds != NULL
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&& !spu_elf_create_sections (output_bfd, &link_info))
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&& !spu_elf_create_sections (output_bfd, &link_info,
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stack_analysis, emit_stack_syms))
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einfo ("%X%P: can not create note section: %E\n");
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gld${EMULATION_NAME}_after_open ();
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@ -187,7 +194,7 @@ spu_before_allocation (void)
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asection *stub, *ovtab;
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if (!spu_elf_size_stubs (output_bfd, &link_info, non_overlay_stubs,
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&stub, &ovtab, &toe))
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stack_analysis, &stub, &ovtab, &toe))
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einfo ("%X%P: can not size overlay stubs: %E\n");
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if (stub != NULL)
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@ -396,6 +403,8 @@ PARSE_AND_LIST_PROLOGUE='
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#define OPTION_SPU_STUB_SYMS (OPTION_SPU_NO_OVERLAYS + 1)
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#define OPTION_SPU_NON_OVERLAY_STUBS (OPTION_SPU_STUB_SYMS + 1)
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#define OPTION_SPU_LOCAL_STORE (OPTION_SPU_NON_OVERLAY_STUBS + 1)
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#define OPTION_SPU_STACK_ANALYSIS (OPTION_SPU_LOCAL_STORE + 1)
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#define OPTION_SPU_STACK_SYMS (OPTION_SPU_STACK_ANALYSIS + 1)
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'
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PARSE_AND_LIST_LONGOPTS='
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@ -404,6 +413,8 @@ PARSE_AND_LIST_LONGOPTS='
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{ "emit-stub-syms", no_argument, NULL, OPTION_SPU_STUB_SYMS },
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{ "extra-overlay-stubs", no_argument, NULL, OPTION_SPU_NON_OVERLAY_STUBS },
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{ "local-store", required_argument, NULL, OPTION_SPU_LOCAL_STORE },
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{ "stack-analysis", no_argument, NULL, OPTION_SPU_STACK_ANALYSIS },
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{ "emit-stack-syms", no_argument, NULL, OPTION_SPU_STACK_SYMS },
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'
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PARSE_AND_LIST_OPTIONS='
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@ -412,7 +423,9 @@ PARSE_AND_LIST_OPTIONS='
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--no-overlays No overlay handling.\n\
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--emit-stub-syms Add symbols on overlay call stubs.\n\
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--extra-overlay-stubs Add stubs on all calls out of overlay regions.\n\
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--local-store=lo:hi Valid address range.\n"
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--local-store=lo:hi Valid address range.\n\
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--stack-analysis Estimate maximum stack requirement.\n\
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--emit-stack-syms Add __stack_func giving stack needed for each func.\n"
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));
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'
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@ -446,6 +459,14 @@ PARSE_AND_LIST_ARGS_CASES='
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einfo (_("%P%F: invalid --local-store address range `%s'\''\n"), optarg);
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}
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break;
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case OPTION_SPU_STACK_ANALYSIS:
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stack_analysis = 1;
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break;
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case OPTION_SPU_STACK_SYMS:
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emit_stack_syms = 1;
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break;
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'
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LDEMUL_AFTER_OPEN=spu_after_open
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@ -3,14 +3,17 @@
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@set GENERIC
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@c 2. Specific target machines
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@set H8300
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@set I960
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@set ARM
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@set H8300
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@set HPPA
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@set I960
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@set M68HC11
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@set MMIX
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@set MSP430
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@set POWERPC
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@set POWERPC64
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@set Renesas
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@set SPU
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@set TICOFF
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@set WIN32
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@set XTENSA
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110
ld/ld.texinfo
110
ld/ld.texinfo
@ -20,33 +20,18 @@
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@c Configure for the generation of man pages
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@set UsesEnvVars
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@set GENERIC
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@set ARC
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@set ARM
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@set D10V
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@set D30V
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@set H8/300
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@set H8/500
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@set H8300
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@set HPPA
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@set I370
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@set I80386
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@set I860
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@set I960
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@set M32R
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@set M68HC11
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@set M680X0
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@set MCORE
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@set MIPS
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@set MMIX
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@set MSP430
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@set PDP11
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@set PJ
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@set POWERPC
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@set POWERPC64
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@set SH
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@set SPARC
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@set TIC54X
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@set V850
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@set VAX
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@set Renesas
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@set SPU
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@set TICOFF
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@set WIN32
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@set XTENSA
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@end ifset
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@ -175,6 +160,9 @@ section entitled ``GNU Free Documentation License''.
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@ifset POWERPC64
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* PowerPC64 ELF64:: ld and PowerPC64 64-bit ELF Support
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@end ifset
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@ifset SPU
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* SPU ELF:: ld and SPU ELF Support
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@end ifset
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@ifset TICOFF
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* TI COFF:: ld and the TI COFF
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@end ifset
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@ -5235,6 +5223,9 @@ functionality are not listed.
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@ifset POWERPC64
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* PowerPC64 ELF64:: @command{ld} and PowerPC64 64-bit ELF Support
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@end ifset
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@ifset SPU
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* SPU ELF:: @command{ld} and SPU ELF Support
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@end ifset
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@ifset TICOFF
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* TI COFF:: @command{ld} and TI COFF
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@end ifset
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@ -5849,6 +5840,87 @@ Use this option to turn off this feature.
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@end ifclear
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@end ifset
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@ifset SPU
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@ifclear GENERIC
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@raisesections
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@end ifclear
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@node SPU ELF
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@section @command{ld} and SPU ELF Support
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@cindex SPU ELF options
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@table @option
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@cindex SPU plugins
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@kindex --plugin
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@item --plugin
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This option marks an executable as a PIC plugin module.
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@cindex SPU overlays
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@kindex --no-overlays
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@item --no-overlays
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Normally, @command{ld} recognizes calls to functions within overlay
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regions, and redirects such calls to an overlay manager via a stub.
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@command{ld} also provides a built-in overlay manager. This option
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turns off all this special overlay handling.
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@cindex SPU overlay stub symbols
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@kindex --emit-stub-syms
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@item --emit-stub-syms
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This option causes @command{ld} to label overlay stubs with a local
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symbol that encodes the stub type and destination.
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@cindex SPU extra overlay stubs
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@kindex --extra-overlay-stubs
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@item --extra-overlay-stubs
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This option causes @command{ld} to add overlay call stubs on all
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function calls out of overlay regions. Normally stubs are not added
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on calls to non-overlay regions.
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@cindex SPU local store size
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@kindex --local-store=lo:hi
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@item --local-store=lo:hi
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@command{ld} usually checks that a final executable for SPU fits in
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the address range 0 to 256k. This option may be used to change the
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range. Disable the check entirely with @option{--local-store=0:0}.
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@cindex SPU
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@kindex --stack-analysis
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@item --stack-analysis
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SPU local store space is limited. Over-allocation of stack space
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unnecessarily limits space available for code and data, while
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under-allocation results in runtime failures. If given this option,
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@command{ld} will provide an estimate of maximum stack usage.
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@command{ld} does this by examining symbols in code sections to
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determine the extents of functions, and looking at function prologues
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for stack adjusting instructions. A call-graph is created by looking
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for relocations on branch instructions. The graph is then searched
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for the maximum stack usage path. Note that this analysis does not
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find calls made via function pointers, and does not handle recursion
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and other cycles in the call graph. Stack usage may be
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under-estimated if your code makes such calls. Also, stack usage for
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dynamic allocation, e.g. alloca, will not be detected. If a link map
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is requested, detailed information about each function's stack usage
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and calls will be given.
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@cindex SPU
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@kindex --emit-stack-syms
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@item --emit-stack-syms
|
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This option, if given along with @option{--stack-analysis} will result
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in @command{ld} emitting stack sizing symbols for each function.
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These take the form @code{__stack_<function_name>} for global
|
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functions, and @code{__stack_<number>_<function_name>} for static
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functions. @code{<number>} is the section id in hex. The value of
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such symbols is the stack requirement for the corresponding function.
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The symbol size will be zero, type @code{STT_NOTYPE}, binding
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@code{STB_LOCAL}, and section @code{SHN_ABS}.
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@end table
|
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|
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@ifclear GENERIC
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@lowersections
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@end ifclear
|
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@end ifset
|
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@ifset TICOFF
|
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@ifclear GENERIC
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@raisesections
|
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|
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@ -161,6 +161,8 @@ static struct bfd_link_callbacks link_callbacks =
|
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unattached_reloc,
|
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notice,
|
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einfo,
|
||||
info_msg,
|
||||
minfo,
|
||||
ldlang_override_segment_assignment
|
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};
|
||||
|
||||
|
||||
11
ld/ldmisc.c
11
ld/ldmisc.c
@ -477,11 +477,14 @@ info_assert (const char *file, unsigned int line)
|
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void
|
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minfo (const char *fmt, ...)
|
||||
{
|
||||
va_list arg;
|
||||
if (config.map_file != NULL)
|
||||
{
|
||||
va_list arg;
|
||||
|
||||
va_start (arg, fmt);
|
||||
vfinfo (config.map_file, fmt, arg, FALSE);
|
||||
va_end (arg);
|
||||
va_start (arg, fmt);
|
||||
vfinfo (config.map_file, fmt, arg, FALSE);
|
||||
va_end (arg);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
|
||||
Loading…
Reference in New Issue
Block a user