Fix unused-but-set-variable compiler errors for ppc/ppc64 builds.
This commit is contained in:
David Anderson
parent
1e2581ab02
commit
a2637117ac
159
ppc64-unused-but-set-variable.patch
Normal file
159
ppc64-unused-but-set-variable.patch
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@ -0,0 +1,159 @@
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--- crash-5.1.7/gdb-7.0.patch.orig
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+++ crash-5.1.7/gdb-7.0.patch
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@@ -1685,3 +1685,156 @@
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add_symbol_to_list (sym, &global_symbols);
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}
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child_die = sibling_die (child_die);
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+--- gdb-7.0/bfd/elf64-ppc.c.orig
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++++ gdb-7.0/bfd/elf64-ppc.c
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+@@ -4764,7 +4764,7 @@ ppc64_elf_check_relocs (bfd *abfd, struc
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+ {
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+ struct ppc_link_hash_table *htab;
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+ Elf_Internal_Shdr *symtab_hdr;
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+- struct elf_link_hash_entry **sym_hashes, **sym_hashes_end;
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++ struct elf_link_hash_entry **sym_hashes;
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+ const Elf_Internal_Rela *rel;
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+ const Elf_Internal_Rela *rel_end;
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+ asection *sreloc;
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+@@ -4793,10 +4793,6 @@ ppc64_elf_check_relocs (bfd *abfd, struc
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+ symtab_hdr = &elf_symtab_hdr (abfd);
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+
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+ sym_hashes = elf_sym_hashes (abfd);
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+- sym_hashes_end = (sym_hashes
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+- + symtab_hdr->sh_size / sizeof (Elf64_External_Sym)
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+- - symtab_hdr->sh_info);
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+-
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+ sreloc = NULL;
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+ opd_sym_map = NULL;
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+ if (strcmp (bfd_get_section_name (abfd, sec), ".opd") == 0)
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+@@ -5672,6 +5668,9 @@ ppc64_elf_gc_sweep_hook (bfd *abfd, stru
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+ elf_section_data (sec)->local_dynrel = NULL;
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+
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+ htab = ppc_hash_table (info);
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++ if (htab == NULL)
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++ return FALSE;
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++
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+ symtab_hdr = &elf_symtab_hdr (abfd);
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+ sym_hashes = elf_sym_hashes (abfd);
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+ local_got_ents = elf_local_got_ents (abfd);
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+@@ -6790,7 +6789,6 @@ ppc64_elf_edit_opd (bfd *obfd, struct bf
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+ Elf_Internal_Rela *relstart, *rel, *relend;
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+ Elf_Internal_Shdr *symtab_hdr;
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+ Elf_Internal_Sym *local_syms;
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+- struct elf_link_hash_entry **sym_hashes;
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+ bfd_vma offset;
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+ struct _opd_sec_data *opd;
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+ bfd_boolean need_edit, add_aux_fields;
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+@@ -6812,7 +6810,6 @@ ppc64_elf_edit_opd (bfd *obfd, struct bf
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+
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+ local_syms = NULL;
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+ symtab_hdr = &elf_symtab_hdr (ibfd);
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+- sym_hashes = elf_sym_hashes (ibfd);
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+
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+ /* Read the relocations. */
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+ relstart = _bfd_elf_link_read_relocs (ibfd, sec, NULL, NULL,
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+@@ -7664,7 +7661,6 @@ ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_
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+ asection *toc, *sec;
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+ Elf_Internal_Shdr *symtab_hdr;
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+ Elf_Internal_Sym *local_syms;
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+- struct elf_link_hash_entry **sym_hashes;
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+ Elf_Internal_Rela *relstart, *rel;
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+ unsigned long *skip, *drop;
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+ unsigned char *used;
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+@@ -7679,7 +7675,6 @@ ppc64_elf_edit_toc (bfd *obfd ATTRIBUTE_
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+
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+ local_syms = NULL;
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+ symtab_hdr = &elf_symtab_hdr (ibfd);
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+- sym_hashes = elf_sym_hashes (ibfd);
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+
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+ /* Look at sections dropped from the final link. */
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+ skip = NULL;
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+--- gdb-7.0/bfd/elf32-ppc.c.orig
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++++ gdb-7.0/bfd/elf32-ppc.c
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+@@ -4735,7 +4735,6 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUT
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+ }
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+ else
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+ {
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+- Elf_Internal_Sym *sym;
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+ bfd_signed_vma *lgot_refs;
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+ struct plt_entry **local_plt;
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+ char *lgot_masks;
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+@@ -4754,7 +4753,6 @@ ppc_elf_tls_optimize (bfd *obfd ATTRIBUT
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+ return FALSE;
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+ }
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+ }
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+- sym = locsyms + r_symndx;
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+ lgot_refs = elf_local_got_refcounts (ibfd);
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+ if (lgot_refs == NULL)
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+ abort ();
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+@@ -5941,7 +5939,7 @@ ppc_elf_relax_section (bfd *abfd,
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+ for (irel = internal_relocs; irel < irelend; irel++)
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+ {
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+ unsigned long r_type = ELF32_R_TYPE (irel->r_info);
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+- bfd_vma reladdr, toff, roff;
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++ bfd_vma toff, roff;
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+ asection *tsec;
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+ struct one_fixup *f;
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+ size_t insn_offset = 0;
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+@@ -6125,7 +6123,6 @@ ppc_elf_relax_section (bfd *abfd,
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+ continue;
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+
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+ roff = irel->r_offset;
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+- reladdr = isec->output_section->vma + isec->output_offset + roff;
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+
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+ /* If the branch is in range, no need to do anything. */
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+ if (tsec != bfd_und_section_ptr
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+--- gdb-7.0/bfd/coffcode.h.orig
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++++ gdb-7.0/bfd/coffcode.h
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+@@ -3527,7 +3527,9 @@ coff_write_object_contents (bfd * abfd)
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+ asection *current;
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+ bfd_boolean hasrelocs = FALSE;
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+ bfd_boolean haslinno = FALSE;
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++#ifdef COFF_IMAGE_WITH_PE
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+ bfd_boolean hasdebug = FALSE;
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++#endif
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+ file_ptr scn_base;
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+ file_ptr reloc_base;
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+ file_ptr lineno_base;
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+@@ -3630,9 +3632,9 @@ coff_write_object_contents (bfd * abfd)
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+ current = current->next)
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+ {
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+ struct internal_scnhdr section;
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++#ifdef COFF_IMAGE_WITH_PE
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+ bfd_boolean is_reloc_section = FALSE;
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+
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+-#ifdef COFF_IMAGE_WITH_PE
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+ if (strcmp (current->name, DOT_RELOC) == 0)
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+ {
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+ is_reloc_section = TRUE;
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+@@ -3731,9 +3733,11 @@ coff_write_object_contents (bfd * abfd)
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+ #endif
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+ if (current->lineno_count != 0)
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+ haslinno = TRUE;
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++#ifdef COFF_IMAGE_WITH_PE
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+ if ((current->flags & SEC_DEBUGGING) != 0
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+ && ! is_reloc_section)
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+ hasdebug = TRUE;
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++#endif
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+
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+ #ifdef RS6000COFF_C
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+ #ifndef XCOFF64
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+--- gdb-7.0/bfd/coff-rs6000.c.orig
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++++ gdb-7.0/bfd/coff-rs6000.c
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+@@ -3068,7 +3068,7 @@ xcoff_complain_overflow_bitfield_func (i
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+ bfd_vma relocation;
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+ struct reloc_howto_struct *howto;
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+ {
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+- bfd_vma addrmask, fieldmask, signmask, ss;
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++ bfd_vma fieldmask, signmask, ss;
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+ bfd_vma a, b, sum;
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+
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+ /* Get the values to be added together. For signed and unsigned
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+@@ -3076,7 +3076,6 @@ xcoff_complain_overflow_bitfield_func (i
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+ the size of an address. For bitfields, all the bits matter.
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+ See also bfd_check_overflow. */
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+ fieldmask = N_ONES (howto->bitsize);
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+- addrmask = N_ONES (bfd_arch_bits_per_address (input_bfd)) | fieldmask;
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+ a = relocation;
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+ b = val & howto->src_mask;
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+
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