computing whether instructions can be relaxed.
* ld-mn10300/i135409-4.s: New test case. Check for relaxation to a 16-bit
jump instruction.
* ld-mn10300/i135409-4.t: Linker script for the new test.
* ld-mn10300/i135409-4.d: Expected disassembly of new test.
* ld-mn10300/mn10300.exp: Run the new test.
* lib/ld-lib.exp (check_gc_sections_available): New proc, based on the version in gcc/testsuite/lib/target-supports.exp.
* ld-elf/eld.exp: Use check_gc_sections_available.
* elf64-ppc.c (ppc64_elf_get_synthetic_symtab): Set udata.p of
synthetic symbol to point to the ELF symbol it was derived from.
gdb/ChangeLog:
* elfread.c (ST_REGULAR, ST_DYNAMIC, ST_SYNTHETIC): New defines.
(elf_symtab_read): Rename DYNAMIC argument to TYPE. Do not access
ELF-private symbol data when processing synthetic symbols. Use
udata.p to get at size of ppc64 synthetic 'dot' symbols.
(elf_symfile_read): Pass TYPE argument to elf_symtab_read.
2007-09-18 Richard Sandiford <richard@codesourcery.com>
* elfxx-mips.c (mips_got_page_range): New structure.
(mips_got_page_entry): Likewise.
(mips_got_info): Add page_gotno and got_page_entries fields.
(mips_elf_got_per_bfd_arg): Add max_pages field. Delete
primary_count and current_count fields.
(mips_got_page_entry_hash, mips_got_page_entry_eq): New functions.
(mips_elf_pages_for_range, mips_elf_record_got_page_entry): Likewise.
(mips_elf_get_got_for_bfd): New function, split out from
mips_elf_make_got_per_bfd. Initialize the page_gotno and
got_page_entries fields when creating a new GOT structure.
(mips_elf_make_got_pages_per_bfd): New function.
(mips_elf_merge_got_with): New function, split out from
mips_elf_make_got_per_bfd. Merge page entries as well as
non-page entries. Use the minimum of max_pages and the sum
of the page_gotnos to estimate the number of page entries.
(mips_elf_merge_gots): Use the minimum of max_pages and the
bfd's page_gotno to estimate the number of page entries.
Use the above functions.
(mips_elf_multi_got): Add page entries as well as non-page entries
to the individual per-bfd GOTs. Initialize got_per_bfd_arg.max_pages.
Initialize the page_gotno and got_page_entries fields when creating
a new primary GOT. Use the minimum of pages and page_gotno when
adding the number of pages entries to local_gotno.
(mips_elf_create_got_section): Initialize the page_gotno and
got_page_entries fields of the GOT structure.
(mips_elf_rel_relocation_p, mips_elf_read_rel_addend)
(mips_elf_add_lo16_rel_addend, mips_elf_get_section_contents): New
functions, split out from...
(_bfd_mips_elf_relocate_section): ...here.
(_bfd_mips_elf_check_relocs): Record GOT page entries too.
(_bfd_mips_relax_section): Use mips_elf_get_section_contents.
(_bfd_mips_elf_always_size_sections): Use the smaller of the
loadable_size- and page_gotno-derived estimates.
ld/testsuite/
2007-09-18 Richard Sandiford <richard@codesourcery.com>
Joseph Myers <joseph@codesourcery.com>
* ld-mips-elf/got-page-1.d, ld-mips-elf/got-page-1.s,
* ld-mips-elf/got-page-2.d, ld-mips-elf/got-page-2.s,
* ld-mips-elf/got-page-3.d, ld-mips-elf/got-page-3a.s,
* ld-mips-elf/got-page-3b.s, ld-mips-elf/got-page-3c.s,
* ld-mips-elf/got-page-1.ld: New tests.
* ld-mips-elf/mips-elf.exp: Run them.
* ld-mips-elf/multi-got-1.d, ld-mips-elf/multi-got-no-shared.d,
* ld-mips-elf/tls-hidden2-got.d, ld-mips-elf/tls-hidden2.d,
* ld-mips-elf/tls-hidden3.d, ld-mips-elf/tls-hidden3.got,
* ld-mips-elf/tls-hidden3.r, ld-mips-elf/tls-hidden4.got,
* ld-mips-elf/tls-hidden4.r, ld-mips-elf/tls-multi-got-1.d,
* ld-mips-elf/tls-multi-got-1.got, ld-mips-elf/tls-multi-got-1.r,
* ld-mips-elf/tlsbin-o32.d, ld-mips-elf/tlsbin-o32.got,
* ld-mips-elf/tlsdyn-o32-1.d, ld-mips-elf/tlsdyn-o32-1.got,
* ld-mips-elf/tlsdyn-o32-2.d, ld-mips-elf/tlsdyn-o32-2.got,
* ld-mips-elf/tlsdyn-o32-3.d, ld-mips-elf/tlsdyn-o32-3.got,
* ld-mips-elf/tlsdyn-o32.d, ld-mips-elf/tlsdyn-o32.got,
* ld-mips-elf/tlslib-o32-hidden.got, ld-mips-elf/tlslib-o32-ver.got,
* ld-mips-elf/tlslib-o32.d, ld-mips-elf/tlslib-o32.got: Update for
GOT allocation changes.
* config/tc-mn10300.h (TC_FORCE_RELOCATION): Call mn10300_force_relocation.
* elf-m10300.c (mn10300_elf_final_link_relocate): Prevent the accidental termination of DWARF location list entries.
(mn10300_elf_relax_delete_bytes): Stop deletion if an align reloc is encountered that is larger than or not a mutliple of the number of bytes being deleted.
When adjusting symbols, any symbols inside the region being deleted must be moved to the end of the region.
Move align relocs forward if there is room for them after the deletion of the region.
* elf.c (rewrite_elf_program_header): Formatting. Add
first_matching_lma and first_suggested_lma booleans and use
instead of testing matching_lma and suggested_lma for zero.
(record_section): Likewise.
(_bfd_merge_sections): Likewise.
(_bfd_merged_section_offset): Properly handle NULL secinfo.
(_bfd_add_merge_section): Allocate extra space for a zero
terminator on SEC_STRINGS sections.
* reloc.c (BFD_RELOC_MN10300_ALIGN): Add.
* bfd-in2.h: Regenerate.
* libbfd.h: Regenerate.
* elf-m10300.h: Handle R_MN10300_ALIGN relocs.
* mn10300_elf_relax_delete_bytes): Honour R_MN10300_ALIGN relocs.
Re-fix off by one error in comparisons.
* config/tc-mn10300.c (tc_gen_reloc): Fix test that decides when
sym_diff relocs should be generated.
(md_apply_fix): Skip R_MN10300_ALIGN relocs.
(mn10300_fix_adjustable): Do not adjust R_MN10300_ALIGN relocs.
(mn10300_handle_align): New function. Generate R_MN10300_ALIGN
relocs to record alignment requests.
* config/tc-mn10300.h (TC_FORCE_RELOCATION_SUB_SAME): Also force
R_MN10300_ALIGN relocs.
(HANDLE_ALIGN): Define. Call mn10300_handle_align.
* gas/all/gas.exp: Do not run diff1.s test for mn10300.
* ld-mn10300/mn10300.exp: Run new tests. Skip i126256 test if
a compiler is not available.
* ld-mn10300/i112045-3.s: New test.
* ld-mn10300/i112045-3.d: Expected disassembly.
* ld-mn10300/i135409.s: Rename to i135409-1.s.
* ld-mn10300/i135409.d: Rename to i135409-1.d
* ld-mn10300/i135409-2.s: New test.
* ld-mn10300/i135409-2.d: Expected symbol table.
* ld-mn10300/i36434.d: Adjust expected disassembly.
