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* elf32-mips.c (mips_elf_local_relocation_p): New static
function. (mips_elf_next_lo16_addend): Call bfd_set_error on failure. (mips_elf_calculate_relocation): Use mips_elf_local_relocation_p. Always set *require_jalxp. (mips_elf_stub_section_p): Mark abfd parameter as unused. (_bfd_mips_elf_relocate_section): Only look for LO16 following GOT16 if the GOT16 is against a local symbol. Don't return false for an undefined symbol. If there is an overflow, assert that we have a name.
This commit is contained in:
Ian Lance Taylor
parent
b4cac588ae
commit
6387d6028b
@ -1,3 +1,16 @@
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1999-07-16 Ian Lance Taylor <ian@zembu.com>
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* elf32-mips.c (mips_elf_local_relocation_p): New static
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function.
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(mips_elf_next_lo16_addend): Call bfd_set_error on failure.
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(mips_elf_calculate_relocation): Use mips_elf_local_relocation_p.
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Always set *require_jalxp.
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(mips_elf_stub_section_p): Mark abfd parameter as unused.
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(_bfd_mips_elf_relocate_section): Only look for LO16 following
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GOT16 if the GOT16 is against a local symbol. Don't return false
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for an undefined symbol. If there is an overflow, assert that we
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have a name.
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1999-07-16 Andreas Schwab <schwab@suse.de>
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* elflink.h (elf_link_record_local_dynamic_symbol): Remove unused
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@ -184,6 +184,8 @@ static boolean mips_elf_sort_hash_table
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static asection * mips_elf_got_section PARAMS ((bfd *));
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static struct mips_got_info *mips_elf_got_info
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PARAMS ((bfd *, asection **));
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static boolean mips_elf_local_relocation_p
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PARAMS ((bfd *, const Elf_Internal_Rela *, asection **));
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static bfd_vma mips_elf_create_local_got_entry
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PARAMS ((bfd *, struct mips_got_info *, asection *, bfd_vma));
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static bfd_vma mips_elf_got16_entry
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@ -5150,6 +5152,29 @@ mips_elf_got_info (abfd, sgotp)
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return g;
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}
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/* Return whether a relocation is against a local symbol. */
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static boolean
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mips_elf_local_relocation_p (input_bfd, relocation, local_sections)
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bfd *input_bfd;
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const Elf_Internal_Rela *relocation;
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asection **local_sections;
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{
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unsigned long r_symndx;
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Elf_Internal_Shdr *symtab_hdr;
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r_symndx = ELF32_R_SYM (relocation->r_info);
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symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
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if (! elf_bad_symtab (input_bfd))
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return r_symndx < symtab_hdr->sh_info;
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else
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{
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/* The symbol table does not follow the rule that local symbols
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must come before globals. */
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return local_sections[r_symndx] != NULL;
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}
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}
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/* Sign-extend VALUE, which has the indicated number of BITS. */
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static bfd_vma
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@ -5554,6 +5579,7 @@ mips_elf_next_lo16_addend (relocation, relend, addendp)
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}
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/* We didn't find it. */
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bfd_set_error (bfd_error_bad_value);
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return false;
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}
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@ -5754,19 +5780,18 @@ mips_elf_calculate_relocation (abfd,
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/* Assume that there will be no overflow. */
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overflowed_p = false;
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/* Figure out whether or not the symbol is local. */
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/* Figure out whether or not the symbol is local, and get the offset
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used in the array of hash table entries. */
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symtab_hdr = &elf_tdata (input_bfd)->symtab_hdr;
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if (elf_bad_symtab (input_bfd))
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local_p = mips_elf_local_relocation_p (input_bfd, relocation,
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local_sections);
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if (! elf_bad_symtab (input_bfd))
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extsymoff = symtab_hdr->sh_info;
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else
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{
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/* The symbol table does not follow the rule that local symbols
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must come before globals. */
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extsymoff = 0;
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local_p = local_sections[r_symndx] != NULL;
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}
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else
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{
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extsymoff = symtab_hdr->sh_info;
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local_p = r_symndx < extsymoff;
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}
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/* Figure out the value of the symbol. */
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@ -5905,9 +5930,8 @@ mips_elf_calculate_relocation (abfd,
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/* Calls from 16-bit code to 32-bit code and vice versa require the
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special jalx instruction. */
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if (!info->relocateable
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&& ((r_type == R_MIPS16_26) != target_is_16_bit_code_p))
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*require_jalxp = true;
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*require_jalxp = (!info->relocateable
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&& ((r_type == R_MIPS16_26) != target_is_16_bit_code_p));
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/* If we haven't already determined the GOT offset, or the GP value,
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and we're going to need it, get it now. */
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@ -6381,7 +6405,7 @@ mips_elf_perform_relocation (info, howto, relocation, value,
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static boolean
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mips_elf_stub_section_p (abfd, section)
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bfd *abfd;
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bfd *abfd ATTRIBUTE_UNUSED;
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asection *section;
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{
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const char *name = bfd_get_section_name (abfd, section);
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@ -6463,7 +6487,10 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
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/* For some kinds of relocations, the ADDEND is a
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combination of the addend stored in two different
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relocations. */
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if (r_type == R_MIPS_HI16 || r_type == R_MIPS_GOT16)
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if (r_type == R_MIPS_HI16
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|| (r_type == R_MIPS_GOT16
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&& mips_elf_local_relocation_p (input_bfd, rel,
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local_sections)))
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{
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/* Scan ahead to find a matching R_MIPS_LO16
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relocation. */
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@ -6486,7 +6513,10 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
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{
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/* Used the saved HI16 addend. */
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if (!last_hi16_addend_valid_p)
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return false;
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{
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bfd_set_error (bfd_error_bad_value);
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return false;
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}
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addend |= last_hi16_addend;
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}
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else if (r_type == R_MIPS16_GPREL)
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@ -6533,7 +6563,9 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
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continue;
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case bfd_reloc_undefined:
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return false;
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/* mips_elf_calculate_relocation already called the
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undefined_symbol callback. */
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break;
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case bfd_reloc_notsupported:
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abort ();
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@ -6544,12 +6576,14 @@ _bfd_mips_elf_relocate_section (output_bfd, info, input_bfd, input_section,
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/* Ignore overflow until we reach the last relocation for
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a given location. */
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;
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else if (!name
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|| ! ((*info->callbacks->reloc_overflow)
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(info, name, howto->name, (bfd_vma) 0,
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input_bfd, input_section, rel->r_offset)))
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return false;
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else
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{
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BFD_ASSERT (name != NULL);
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if (! ((*info->callbacks->reloc_overflow)
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(info, name, howto->name, (bfd_vma) 0,
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input_bfd, input_section, rel->r_offset)))
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return false;
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}
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break;
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case bfd_reloc_ok:
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