X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Felf32-spu.c;h=28628f83adde7f43e1be1a8c9d715ecb1fce1004;hb=95830fd17d6ae253d8f6c2595188cadd59058799;hp=13d3a5310437704508b6bbfd6b4590f2ff5ce248;hpb=57e96a08618e98e45c84d63da0db560b5c0930d9;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/elf32-spu.c b/bfd/elf32-spu.c index 13d3a53104..28628f83ad 100644 --- a/bfd/elf32-spu.c +++ b/bfd/elf32-spu.c @@ -1,6 +1,7 @@ /* SPU specific support for 32-bit ELF - Copyright 2006, 2007, 2008, 2009 Free Software Foundation, Inc. + Copyright 2006, 2007, 2008, 2009, 2010, 2011, 2012 + Free Software Foundation, Inc. This file is part of BFD, the Binary File Descriptor library. @@ -272,7 +273,8 @@ spu_elf_object_p (bfd *abfd) { Elf_Internal_Shdr *shdr = elf_elfsections (abfd)[j]; - if (ELF_IS_SECTION_IN_SEGMENT_MEMORY (shdr, phdr)) + if (ELF_SECTION_SIZE (shdr, phdr) != 0 + && ELF_SECTION_IN_SEGMENT (shdr, phdr)) { asection *sec = shdr->bfd_section; spu_elf_section_data (sec)->u.o.ovl_index = num_ovl; @@ -331,16 +333,7 @@ struct spu_link_hash_table /* How much memory we have. */ unsigned int local_store; - /* Local store --auto-overlay should reserve for non-overlay - functions and data. */ - unsigned int overlay_fixed; - /* Local store --auto-overlay should reserve for stack and heap. */ - unsigned int reserved; - /* If reserved is not specified, stack analysis will calculate a value - for the stack. This parameter adjusts that value to allow for - negative sp access (the ABI says 2000 bytes below sp are valid, - and the overlay manager uses some of this area). */ - int extra_stack_space; + /* Count of overlay stubs needed in non-overlay area. */ unsigned int non_ovly_stub; @@ -365,7 +358,8 @@ struct got_entry }; #define spu_hash_table(p) \ - ((struct spu_link_hash_table *) ((p)->hash)) + (elf_hash_table_id ((struct elf_link_hash_table *) ((p)->hash)) \ + == SPU_ELF_DATA ? ((struct spu_link_hash_table *) ((p)->hash)) : NULL) struct call_info { @@ -452,7 +446,8 @@ spu_elf_link_hash_table_create (bfd *abfd) if (!_bfd_elf_link_hash_table_init (&htab->elf, abfd, _bfd_elf_link_hash_newfunc, - sizeof (struct elf_link_hash_entry))) + sizeof (struct elf_link_hash_entry), + SPU_ELF_DATA)) { free (htab); return NULL; @@ -608,9 +603,12 @@ spu_elf_create_sections (struct bfd_link_info *info) { asection *s; flagword flags; - ibfd = info->input_bfds; - flags = SEC_LOAD | SEC_ALLOC | SEC_READONLY | SEC_HAS_CONTENTS - | SEC_IN_MEMORY; + + if (htab->elf.dynobj == NULL) + htab->elf.dynobj = ibfd; + ibfd = htab->elf.dynobj; + flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY | SEC_HAS_CONTENTS + | SEC_IN_MEMORY | SEC_LINKER_CREATED); s = bfd_make_section_anyway_with_flags (ibfd, ".fixup", flags); if (s == NULL || !bfd_set_section_alignment (ibfd, s, 2)) return FALSE; @@ -678,9 +676,10 @@ spu_elf_find_overlays (struct bfd_link_info *info) ovl_end = alloc_sec[0]->vma + alloc_sec[0]->size; if (htab->params->ovly_flavour == ovly_soft_icache) { + unsigned int prev_buf = 0, set_id = 0; + /* Look for an overlapping vma to find the first overlay section. */ bfd_vma vma_start = 0; - bfd_vma lma_start = 0; for (i = 1; i < n; i++) { @@ -689,10 +688,6 @@ spu_elf_find_overlays (struct bfd_link_info *info) { asection *s0 = alloc_sec[i - 1]; vma_start = s0->vma; - if (strncmp (s0->name, ".ovl.init", 9) != 0) - lma_start = s0->lma; - else - lma_start = s->lma; ovl_end = (s0->vma + ((bfd_vma) 1 << (htab->num_lines_log2 + htab->line_size_log2))); @@ -717,8 +712,10 @@ spu_elf_find_overlays (struct bfd_link_info *info) if (strncmp (s->name, ".ovl.init", 9) != 0) { num_buf = ((s->vma - vma_start) >> htab->line_size_log2) + 1; - if (((s->vma - vma_start) & (htab->params->line_size - 1)) - || ((s->lma - lma_start) & (htab->params->line_size - 1))) + set_id = (num_buf == prev_buf)? set_id + 1 : 0; + prev_buf = num_buf; + + if ((s->vma - vma_start) & (htab->params->line_size - 1)) { info->callbacks->einfo (_("%X%P: overlay section %A " "does not start on a cache line.\n"), @@ -737,7 +734,7 @@ spu_elf_find_overlays (struct bfd_link_info *info) alloc_sec[ovl_index++] = s; spu_elf_section_data (s)->u.o.ovl_index - = ((s->lma - lma_start) >> htab->line_size_log2) + 1; + = (set_id << htab->num_lines_log2) + num_buf; spu_elf_section_data (s)->u.o.ovl_buf = num_buf; } } @@ -1429,7 +1426,7 @@ build_stub (struct bfd_link_info *info, add = (int) irela->r_addend & 0xffffffff; if (add != 0) len += 1 + 8; - name = bfd_malloc (len); + name = bfd_malloc (len + 1); if (name == NULL) return FALSE; @@ -2693,19 +2690,12 @@ mark_functions_via_relocs (asection *sec, Elf_Internal_Sym *sym; struct elf_link_hash_entry *h; bfd_vma val; - bfd_boolean reject, is_call; + bfd_boolean nonbranch, is_call; struct function_info *caller; struct call_info *callee; - reject = FALSE; r_type = ELF32_R_TYPE (irela->r_info); - if (r_type != R_SPU_REL16 - && r_type != R_SPU_ADDR16) - { - reject = TRUE; - if (!(call_tree && spu_hash_table (info)->params->auto_overlay)) - continue; - } + nonbranch = r_type != R_SPU_REL16 && r_type != R_SPU_ADDR16; r_indx = ELF32_R_SYM (irela->r_info); if (!get_sym_h (&h, &sym, &sym_sec, psyms, r_indx, sec->owner)) @@ -2716,7 +2706,7 @@ mark_functions_via_relocs (asection *sec, continue; is_call = FALSE; - if (!reject) + if (!nonbranch) { unsigned char insn[4]; @@ -2747,14 +2737,13 @@ mark_functions_via_relocs (asection *sec, } else { - reject = TRUE; - if (!(call_tree && spu_hash_table (info)->params->auto_overlay) - || is_hint (insn)) + nonbranch = TRUE; + if (is_hint (insn)) continue; } } - if (reject) + if (nonbranch) { /* For --auto-overlay, count possible stubs we need for function pointer references. */ @@ -2764,8 +2753,20 @@ mark_functions_via_relocs (asection *sec, else sym_type = ELF_ST_TYPE (sym->st_info); if (sym_type == STT_FUNC) - spu_hash_table (info)->non_ovly_stub += 1; - continue; + { + if (call_tree && spu_hash_table (info)->params->auto_overlay) + spu_hash_table (info)->non_ovly_stub += 1; + /* If the symbol type is STT_FUNC then this must be a + function pointer initialisation. */ + continue; + } + /* Ignore data references. */ + if ((sym_sec->flags & (SEC_ALLOC | SEC_LOAD | SEC_CODE)) + != (SEC_ALLOC | SEC_LOAD | SEC_CODE)) + continue; + /* Otherwise we probably have a jump table reloc for + a switch statement or some other reference to a + code label. */ } if (h) @@ -2814,7 +2815,7 @@ mark_functions_via_relocs (asection *sec, callee->is_pasted = FALSE; callee->broken_cycle = FALSE; callee->priority = priority; - callee->count = 1; + callee->count = nonbranch? 0 : 1; if (callee->fun->last_caller != sec) { callee->fun->last_caller = sec; @@ -4067,7 +4068,7 @@ sort_bfds (const void *a, const void *b) bfd *const *abfd1 = a; bfd *const *abfd2 = b; - return strcmp ((*abfd1)->filename, (*abfd2)->filename); + return filename_cmp ((*abfd1)->filename, (*abfd2)->filename); } static unsigned int @@ -4160,6 +4161,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) bfd **bfd_arr; struct elf_segment_map *m; unsigned int fixed_size, lo, hi; + unsigned int reserved; struct spu_link_hash_table *htab; unsigned int base, i, count, bfd_count; unsigned int region, ovlynum; @@ -4195,7 +4197,8 @@ spu_elf_auto_overlay (struct bfd_link_info *info) goto err_exit; htab = spu_hash_table (info); - if (htab->reserved == 0) + reserved = htab->params->auto_overlay_reserved; + if (reserved == 0) { struct _sum_stack_param sum_stack_param; @@ -4203,11 +4206,12 @@ spu_elf_auto_overlay (struct bfd_link_info *info) sum_stack_param.overall_stack = 0; if (!for_each_node (sum_stack, info, &sum_stack_param, TRUE)) goto err_exit; - htab->reserved = sum_stack_param.overall_stack + htab->extra_stack_space; + reserved = (sum_stack_param.overall_stack + + htab->params->extra_stack_space); } /* No need for overlays if everything already fits. */ - if (fixed_size + htab->reserved <= htab->local_store + if (fixed_size + reserved <= htab->local_store && htab->params->ovly_flavour != ovly_soft_icache) { htab->params->auto_overlay = 0; @@ -4296,7 +4300,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) qsort (bfd_arr, bfd_count, sizeof (*bfd_arr), sort_bfds); for (i = 1; i < bfd_count; ++i) - if (strcmp (bfd_arr[i - 1]->filename, bfd_arr[i]->filename) == 0) + if (filename_cmp (bfd_arr[i - 1]->filename, bfd_arr[i]->filename) == 0) { if (bfd_arr[i - 1]->my_archive == bfd_arr[i]->my_archive) { @@ -4320,7 +4324,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) } free (bfd_arr); - fixed_size += htab->reserved; + fixed_size += reserved; fixed_size += htab->non_ovly_stub * ovl_stub_size (htab->params); if (fixed_size + mos_param.max_overlay_size <= htab->local_store) { @@ -4359,13 +4363,13 @@ spu_elf_auto_overlay (struct bfd_link_info *info) (bfd_vma) mos_param.max_overlay_size); /* Now see if we should put some functions in the non-overlay area. */ - else if (fixed_size < htab->overlay_fixed) + else if (fixed_size < htab->params->auto_overlay_fixed) { unsigned int max_fixed, lib_size; max_fixed = htab->local_store - mos_param.max_overlay_size; - if (max_fixed > htab->overlay_fixed) - max_fixed = htab->overlay_fixed; + if (max_fixed > htab->params->auto_overlay_fixed) + max_fixed = htab->params->auto_overlay_fixed; lib_size = max_fixed - fixed_size; lib_size = auto_ovl_lib_functions (info, lib_size); if (lib_size == (unsigned int) -1) @@ -4404,7 +4408,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) struct call_info *call, *pasty; struct _spu_elf_section_data *sec_data; struct spu_elf_stack_info *sinfo; - int k; + unsigned int k; /* See whether we can add this section to the current overlay without overflowing our overlay buffer. */ @@ -4424,7 +4428,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) { /* Pasted sections must stay together, so add their sizes too. */ - struct call_info *pasty = find_pasted_call (sec); + pasty = find_pasted_call (sec); while (pasty != NULL) { struct function_info *call_fun = pasty->fun; @@ -4451,7 +4455,7 @@ spu_elf_auto_overlay (struct bfd_link_info *info) pasty = NULL; sec_data = spu_elf_section_data (sec); sinfo = sec_data->u.i.stack_info; - for (k = 0; k < sinfo->num_fun; ++k) + for (k = 0; k < (unsigned) sinfo->num_fun; ++k) for (call = sinfo->fun[k].call_list; call; call = call->next) if (call->is_pasted) { @@ -4481,7 +4485,6 @@ spu_elf_auto_overlay (struct bfd_link_info *info) num_stubs = 0; for (call = dummy_caller.call_list; call; call = call->next) { - unsigned int k; unsigned int stub_delta = 1; if (htab->params->ovly_flavour == ovly_soft_icache) @@ -4531,13 +4534,12 @@ spu_elf_auto_overlay (struct bfd_link_info *info) script = htab->params->spu_elf_open_overlay_script (); - if (fprintf (script, "SECTIONS\n{\n") <= 0) - goto file_err; - if (htab->params->ovly_flavour == ovly_soft_icache) { + if (fprintf (script, "SECTIONS\n{\n") <= 0) + goto file_err; + if (fprintf (script, - " .data.icache ALIGN (16) : { *(.ovtab) *(.data.icache) }\n" " . = ALIGN (%u);\n" " .ovl.init : { *(.ovl.init) }\n" " . = ABSOLUTE (ADDR (.ovl.init));\n", @@ -4552,10 +4554,10 @@ spu_elf_auto_overlay (struct bfd_link_info *info) unsigned int vma, lma; vma = (indx & (htab->params->num_lines - 1)) << htab->line_size_log2; - lma = indx << htab->line_size_log2; + lma = vma + (((indx >> htab->num_lines_log2) + 1) << 18); if (fprintf (script, " .ovly%u ABSOLUTE (ADDR (.ovl.init)) + %u " - ": AT (ALIGN (LOADADDR (.ovl.init) + SIZEOF (.ovl.init), 16) + %u) {\n", + ": AT (LOADADDR (.ovl.init) + %u) {\n", ovlynum, vma, lma) <= 0) goto file_err; @@ -4573,9 +4575,15 @@ spu_elf_auto_overlay (struct bfd_link_info *info) if (fprintf (script, " . = ABSOLUTE (ADDR (.ovl.init)) + %u;\n", 1 << (htab->num_lines_log2 + htab->line_size_log2)) <= 0) goto file_err; + + if (fprintf (script, "}\nINSERT AFTER .toe;\n") <= 0) + goto file_err; } else { + if (fprintf (script, "SECTIONS\n{\n") <= 0) + goto file_err; + if (fprintf (script, " . = ALIGN (16);\n" " .ovl.init : { *(.ovl.init) }\n" @@ -4627,13 +4635,13 @@ spu_elf_auto_overlay (struct bfd_link_info *info) goto file_err; } + if (fprintf (script, "}\nINSERT BEFORE .text;\n") <= 0) + goto file_err; } free (ovly_map); free (ovly_sections); - if (fprintf (script, "}\nINSERT BEFORE .text;\n") <= 0) - goto file_err; if (fclose (script) != 0) goto file_err; @@ -4823,14 +4831,12 @@ spu_elf_relocate_section (bfd *output_bfd, bfd_vma addend; bfd_reloc_status_type r; bfd_boolean unresolved_reloc; - bfd_boolean warned; enum _stub_type stub_type; r_symndx = ELF32_R_SYM (rel->r_info); r_type = ELF32_R_TYPE (rel->r_info); howto = elf_howto_table + r_type; unresolved_reloc = FALSE; - warned = FALSE; h = NULL; sym = NULL; sec = NULL; @@ -4886,21 +4892,13 @@ spu_elf_relocate_section (bfd *output_bfd, input_section, rel->r_offset, err)) return FALSE; - warned = TRUE; } sym_name = h->root.root.string; } - if (sec != NULL && elf_discarded_section (sec)) - { - /* For relocs against symbols from removed linkonce sections, - or sections discarded by a linker script, we just want the - section contents zeroed. Avoid any special processing. */ - _bfd_clear_contents (howto, input_bfd, contents + rel->r_offset); - rel->r_info = 0; - rel->r_addend = 0; - continue; - } + if (sec != NULL && discarded_section (sec)) + RELOC_AGAINST_DISCARDED_SECTION (info, input_bfd, input_section, + rel, 1, relend, howto, 0, contents); if (info->relocatable) continue; @@ -5003,7 +5001,9 @@ spu_elf_relocate_section (bfd *output_bfd, else if (is_ea_sym) unresolved_reloc = TRUE; - if (unresolved_reloc) + if (unresolved_reloc + && _bfd_elf_section_offset (output_bfd, info, input_section, + rel->r_offset) != (bfd_vma) -1) { (*_bfd_error_handler) (_("%B(%s+0x%lx): unresolvable %s relocation against symbol `%s'"), @@ -5087,7 +5087,7 @@ spu_elf_relocate_section (bfd *output_bfd, } input_section->reloc_count = wrel - relocs; /* Backflips for _bfd_elf_link_output_relocs. */ - rel_hdr = &elf_section_data (input_section)->rel_hdr; + rel_hdr = _bfd_elf_single_rel_hdr (input_section); rel_hdr->sh_size = input_section->reloc_count * rel_hdr->sh_entsize; ret = 2; } @@ -5095,6 +5095,13 @@ spu_elf_relocate_section (bfd *output_bfd, return ret; } +static bfd_boolean +spu_elf_finish_dynamic_sections (bfd *output_bfd ATTRIBUTE_UNUSED, + struct bfd_link_info *info ATTRIBUTE_UNUSED) +{ + return TRUE; +} + /* Adjust _SPUEAR_ syms to point at their overlay stubs. */ static int @@ -5251,7 +5258,7 @@ spu_elf_modify_segment_map (bfd *abfd, struct bfd_link_info *info) if ((*p)->p_type == PT_LOAD && (*p)->count == 1 && spu_elf_section_data ((*p)->sections[0])->u.o.ovl_index != 0) { - struct elf_segment_map *m = *p; + m = *p; *p = m->next; *p_overlay = m; p_overlay = &m->next; @@ -5401,7 +5408,8 @@ spu_elf_size_sections (bfd * output_bfd, struct bfd_link_info *info) /* If there aren't any relocs, then there's nothing more to do. */ - if ((isec->flags & SEC_RELOC) == 0 + if ((isec->flags & SEC_ALLOC) == 0 + || (isec->flags & SEC_RELOC) == 0 || isec->reloc_count == 0) continue; @@ -5444,6 +5452,7 @@ spu_elf_size_sections (bfd * output_bfd, struct bfd_link_info *info) #define TARGET_BIG_SYM bfd_elf32_spu_vec #define TARGET_BIG_NAME "elf32-spu" #define ELF_ARCH bfd_arch_spu +#define ELF_TARGET_ID SPU_ELF_DATA #define ELF_MACHINE_CODE EM_SPU /* This matches the alignment need for DMA. */ #define ELF_MAXPAGESIZE 0x80 @@ -5455,6 +5464,7 @@ spu_elf_size_sections (bfd * output_bfd, struct bfd_link_info *info) #define elf_info_to_howto spu_elf_info_to_howto #define elf_backend_count_relocs spu_elf_count_relocs #define elf_backend_relocate_section spu_elf_relocate_section +#define elf_backend_finish_dynamic_sections spu_elf_finish_dynamic_sections #define elf_backend_symbol_processing spu_elf_backend_symbol_processing #define elf_backend_link_output_symbol_hook spu_elf_output_symbol_hook #define elf_backend_object_p spu_elf_object_p