crash/ppc64-unused-but-set-variable.patch

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--- crash-5.1.7/gdb-7.0.patch.orig
+++ crash-5.1.7/gdb-7.0.patch
@@ -1685,3 +1685,156 @@
add_symbol_to_list (sym, &global_symbols);
}
child_die = sibling_die (child_die);
+--- gdb-7.0/bfd/elf64-ppc.c.orig
++++ gdb-7.0/bfd/elf64-ppc.c
+@@ -4764,7 +4764,7 @@ ppc64_elf_check_relocs (bfd *abfd, struc
+ {
+ struct ppc_link_hash_table *htab;
+ Elf_Internal_Shdr *symtab_hdr;
+- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
++ struct elf_link_hash_entry **sym_hashes;
+ const Elf_Internal_Rela *rel;
+ const Elf_Internal_Rela *rel_end;
+ asection *sreloc;
+@@ -4793,10 +4793,6 @@ ppc64_elf_check_relocs (bfd *abfd, struc
+ symtab_hdr = &elf_symtab_hdr (abfd);
+
+ sym_hashes = elf_sym_hashes (abfd);
+- sym_hashes_end = (sym_hashes
+- + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
+- - symtab_hdr->sh_info);
+-
+ sreloc = NULL;
+ opd_sym_map = NULL;
+ if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
+@@ -5672,6 +5668,9 @@ ppc64_elf_gc_sweep_hook (bfd *abfd, stru
+ elf_section_data (sec)->local_dynrel = NULL;
+
+ htab = ppc_hash_table (info);
++ if (htab == NULL)
++ return FALSE;
++
+ symtab_hdr = &elf_symtab_hdr (abfd);
+ sym_hashes = elf_sym_hashes (abfd);
+ local_got_ents = elf_local_got_ents (abfd);
+@@ -6790,7 +6789,6 @@ ppc64_elf_edit_opd (bfd *obfd, struct bf
+ Elf_Internal_Rela *relstart, *rel, *relend;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *local_syms;
+- struct elf_link_hash_entry **sym_hashes;
+ bfd_vma offset;
+ struct _opd_sec_data *opd;
+ bfd_boolean need_edit, add_aux_fields;
+@@ -6812,7 +6810,6 @@ ppc64_elf_edit_opd (bfd *obfd, struct bf
+
+ local_syms = NULL;
+ symtab_hdr = &elf_symtab_hdr (ibfd);
+- sym_hashes = elf_sym_hashes (ibfd);
+
+ /* Read the relocations. */
+ relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
+@@ -7664,7 +7661,6 @@ ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_
+ asection *toc, *sec;
+ Elf_Internal_Shdr *symtab_hdr;
+ Elf_Internal_Sym *local_syms;
+- struct elf_link_hash_entry **sym_hashes;
+ Elf_Internal_Rela *relstart, *rel;
+ unsigned long *skip, *drop;
+ unsigned char *used;
+@@ -7679,7 +7675,6 @@ ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_
+
+ local_syms = NULL;
+ symtab_hdr = &elf_symtab_hdr (ibfd);
+- sym_hashes = elf_sym_hashes (ibfd);
+
+ /* Look at sections dropped from the final link. */
+ skip = NULL;
+--- gdb-7.0/bfd/elf32-ppc.c.orig
++++ gdb-7.0/bfd/elf32-ppc.c
+@@ -4735,7 +4735,6 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUT
+ }
+ else
+ {
+- Elf_Internal_Sym *sym;
+ bfd_signed_vma *lgot_refs;
+ struct plt_entry **local_plt;
+ char *lgot_masks;
+@@ -4754,7 +4753,6 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUT
+ return FALSE;
+ }
+ }
+- sym = locsyms + r_symndx;
+ lgot_refs = elf_local_got_refcounts (ibfd);
+ if (lgot_refs == NULL)
+ abort ();
+@@ -5941,7 +5939,7 @@ ppc_elf_relax_section (bfd *abfd,
+ for (irel = internal_relocs; irel < irelend; irel++)
+ {
+ unsigned long r_type = ELF32_R_TYPE (irel->r_info);
+- bfd_vma reladdr, toff, roff;
++ bfd_vma toff, roff;
+ asection *tsec;
+ struct one_fixup *f;
+ size_t insn_offset = 0;
+@@ -6125,7 +6123,6 @@ ppc_elf_relax_section (bfd *abfd,
+ continue;
+
+ roff = irel->r_offset;
+- reladdr = isec->output_section->vma + isec->output_offset + roff;
+
+ /* If the branch is in range, no need to do anything. */
+ if (tsec != bfd_und_section_ptr
+--- gdb-7.0/bfd/coffcode.h.orig
++++ gdb-7.0/bfd/coffcode.h
+@@ -3527,7 +3527,9 @@ coff_write_object_contents (bfd * abfd)
+ asection *current;
+ bfd_boolean hasrelocs = FALSE;
+ bfd_boolean haslinno = FALSE;
++#ifdef COFF_IMAGE_WITH_PE
+ bfd_boolean hasdebug = FALSE;
++#endif
+ file_ptr scn_base;
+ file_ptr reloc_base;
+ file_ptr lineno_base;
+@@ -3630,9 +3632,9 @@ coff_write_object_contents (bfd * abfd)
+ current = current->next)
+ {
+ struct internal_scnhdr section;
++#ifdef COFF_IMAGE_WITH_PE
+ bfd_boolean is_reloc_section = FALSE;
+
+-#ifdef COFF_IMAGE_WITH_PE
+ if (strcmp (current->name, DOT_RELOC) == 0)
+ {
+ is_reloc_section = TRUE;
+@@ -3731,9 +3733,11 @@ coff_write_object_contents (bfd * abfd)
+ #endif
+ if (current->lineno_count != 0)
+ haslinno = TRUE;
++#ifdef COFF_IMAGE_WITH_PE
+ if ((current->flags & SEC_DEBUGGING) != 0
+ && ! is_reloc_section)
+ hasdebug = TRUE;
++#endif
+
+ #ifdef RS6000COFF_C
+ #ifndef XCOFF64
+--- gdb-7.0/bfd/coff-rs6000.c.orig
++++ gdb-7.0/bfd/coff-rs6000.c
+@@ -3068,7 +3068,7 @@ xcoff_complain_overflow_bitfield_func (i
+ bfd_vma relocation;
+ struct reloc_howto_struct *howto;
+ {
+- bfd_vma addrmask, fieldmask, signmask, ss;
++ bfd_vma fieldmask, signmask, ss;
+ bfd_vma a, b, sum;
+
+ /* Get the values to be added together. For signed and unsigned
+@@ -3076,7 +3076,6 @@ xcoff_complain_overflow_bitfield_func (i
+ the size of an address. For bitfields, all the bits matter.
+ See also bfd_check_overflow. */
+ fieldmask = N_ONES (howto->bitsize);
+- addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
+ a = relocation;
+ b = val & howto->src_mask;
+