* layout.cc (Layout::Layout): Initialize relro_segment_.
(Layout::add_output_section_data): Return the output section.
(Layout::make_output_section): Rcognize relro sections and mark
them appropriately.
(Layout::attach_allocated_section_to_segment): Put relro sections
in a PT_GNU_RELRO segment.
(Layout::create_initial_dynamic_sections): Mark the .dynamic
section as relro.
(Layout::segment_precedes): Sort PT_GNU_RELRO segments after
PT_TLS segments.
(Layout::linkonce_mapping): Map d.rel.ro.local to
.data.rel.ro.local.
(Layout::output_section_name): Us .data.rel.ro.local for any
section which begins with that.
* layout.h (class Layout): Update add_output_section_data
declaration. Add relro_segment_ field.
* output.cc (Output_section::Output_section): Initialize is_relro_
and is_relro_local_ fields.
(Output_segment::add_output_section): Group relro sections.
(Output_segment::is_first_section_relro): New function.
(Output_segment::maximum_alignment): If there is a relro section,
align the segment to the common page size.
(Output_segment::set_section_addresses): Track whether we are
looking at relro sections. If the last section is a relro
section, align to the common page size.
(Output_segment::set_section_list_addresses): Add in_relro
parameter. Change all callers. Align to the page size when
moving from relro to non-relro section.
(Output_segment::set_offset): Align memsz of a PT_GNU_RELRO
segment.
* output.h (class Output_section): Add is_relro_ and
is_relro_local_ fields.
(Output_section::is_relro): New function.
(Output_section::set_is_relro): New function.
(Output_section::is_relro_local): New function.
(Output_section::set_is_relro_local): New function.
(class Output_segment): Update declarations.
* i386.cc (Target_i386::got_section): Mark .got section as relro.
* sparc.cc (Target_sparc::got_section): Likewise.
* x86_64.cc (Target_x86_64::got_section): Likewise.
* testsuite/relro_test_main.cc: New file.
* testsuite/relro_test.cc: New file.
* testsuite/Makefile.am (check_PROGRAMS): Add relro_test.
(relro_test_SOURCES, relro_test_DEPENDENCIES): New variables.
(relro_test_LDFLAGS, relro_test_LDADD): New variables.
(relro_test.so, relro_test_pic.o): New targets.
* testsuite/Makefile.in: Rebuild.
for TLS_GOTDESC and TLS_DESC_CALL. Only optimize TLS_LDO_32 if we
know the dynamic type.
* x86_64.cc (Target_x86_64::Relocate): Add saw_tls_block_reloc_
field. Initialize it in constructor.
(Target_x86_64::Relocate::relocate_tls): Record that we saw a TLS
block reloc for TLSGD, GOTPC32_TLSDESC, TLSDESC_CALL, and TLSLD.
Only optimize DTPOFF32 and DTPOFF64 if we have seen a TLS block
reloc.
2008-05-15 Pedro Alves <pedro@codesourcery.com>
Ulrich Weigand <uweigand@de.ibm.com>
* minsyms.c (lookup_minimal_symbol_by_pc_name): New function.
* symtab.h (lookup_minimal_symbol_by_pc_name): Add prototype.
* symtab.c (fixup_section): Remove prototype. Add ADDR parameter;
use it instead of ginfo->value.address. Look up minimal symbol by
address and name. Assume OBJFILE is non-NULL.
(fixup_symbol_section): Ensure we always have an objfile to look
into. Extract and pass to fixup_section the symbol's address that
will match the minimal symbol's address.
(fixup_psymbol_section): Likewise.
(find_pc_sect_psymtab): Fall back to non-addrmap case when debugging
overlays and the addrmap returned the wrong section.
* dwarf2read.c (var_decode_location): Set SYMBOL_CLASS before
calling fixup_symbol_section.
gdb/testsuite/
2008-05-15 Pedro Alves <pedro@codesourcery.com>
* gdb.base/fixsection.exp: New file.
* gdb.base/fixsection0.c: New file.
* gdb.base/fixsection1.c: New file.
(ppc64_linux_convert_from_func_ptr_addr): ... to this. No longer try
to handle ppc32 PLT entries.
(ppc_linux_init_abi): Install ppc64_linux_convert_from_func_ptr_addr
only on ppc64.
* minsyms.c (lookup_minimal_symbol_by_pc_section_1): Renamed from
lookup_minimal_symbol_by_pc_section. Prefer trampolines if requested.
(lookup_minimal_symbol_by_pc_section): Use
lookup_minimal_symbol_by_pc_section_1.
(lookup_solib_trampoline_symbol_by_pc): Likewise.
(ppc_elf_get_synthetic_symtab): New function.
(bfd_elf32_get_synthetic_symtab): Define.
* elf64-ppc.c (section_covers_vma): New function.
(ppc64_elf_get_synthetic_symtab): Generate sym@plt on glink branch
table entries, and __glink_PLTresolve on resolver stub.
(ppc64_elf_build_stubs): Rename __glink sym to __glink_PLTresolve.
* elf32-ppc.c (MUST_BE_DYN_RELOC): Delete.
(must_be_dyn_reloc): New function.
(ppc_elf_check_relocs): Don't set DF_STATIC_TLS for tprel relocs
in pies.
(ppc_elf_tls_optimize): Optimise pies.
(ppc_elf_relocate_section): Use a section symbol rather than no
symbol if possible for LD->IE TLS sequence, but don't error if
we must use no symbol.
* elf64-ppc.c (MUST_BE_DYN_RELOC): As for elf32-ppc.c.
(must_be_dyn_reloc): Likewise.
(ppc64_elf_check_relocs): Likewise.
(ppc64_elf_tls_optimize): Likewise.
(ppc64_elf_relocate_section): Likewise.
