Sriraman Tallam [Fri, 24 Aug 2012 18:35:35 +0000 (18:35 +0000)]
Patch adds support to allow plugins to map selected subset of sections to unique
segments.
2012-08-24 Sriraman Tallam <tmsriram@google.com>
* gold.cc (queue_middle_tasks): Call layout again when unique
segments for sections is desired.
* layout.cc (Layout::Layout): Initialize new members.
(Layout::get_output_section_flags): New function.
(Layout::choose_output_section): Call get_output_section_flags.
(Layout::layout): Make output section for mapping to a unique segment.
(Layout::insert_section_segment_map): New function.
(Layout::attach_allocated_section_to_segment): Make unique segment for
output sections marked so.
(Layout::segment_precedes): Check for unique segments when sorting.
* layout.h (Layout::Unique_segment_info): New struct.
(Layout::Section_segment_map): New typedef.
(Layout::insert_section_segment_map): New function.
(Layout::get_output_section_flags): New function.
(Layout::is_unique_segment_for_sections_specified): New function.
(Layout::set_unique_segment_for_sections_specified): New function.
(Layout::unique_segment_for_sections_specified_): New member.
(Layout::section_segment_map_): New member.
* object.cc (Sized_relobj_file<size, big_endian>::do_layout):
Rename is_gc_pass_one to is_pass_one.
Rename is_gc_pass_two to is_pass_two.
Rename is_gc_or_icf to is_two_pass.
Check for which pass based on whether symbols data is present.
Make it two pass when unique segments for sections is desired.
* output.cc (Output_section::Output_section): Initialize new
members.
* output.h (Output_section::is_unique_segment): New function.
(Output_section::set_is_unique_segment): New function.
(Output_section::is_unique_segment_): New member.
(Output_section::extra_segment_flags): New function.
(Output_section::set_extra_segment_flags): New function.
(Output_section::extra_segment_flags_): New member.
(Output_section::segment_alignment): New function.
(Output_section::set_segment_alignment): New function.
(Output_section::segment_alignment_): New member.
(Output_segment::Output_segment): Initialize is_unique_segment_.
(Output_segment::is_unique_segment): New function.
(Output_segment::set_is_unique_segment): New function.
(Output_segment::is_unique_segment_): New member.
* plugin.cc (allow_unique_segment_for_sections): New function.
(unique_segment_for_sections): New function.
(Plugin::load): Add new functions to transfer vector.
* Makefile.am (plugin_final_layout.readelf.stdout): Add readelf output.
* Makefile.in: Regenerate.
* testsuite/plugin_final_layout.sh: Check if unique segment
functionality works.
* testsuite/plugin_section_order.c (onload): Check if new interfaces
are available.
(allow_unique_segment_for_sections): New global.
(unique_segment_for_sections): New global.
(claim_file_hook): Call allow_unique_segment_for_sections.
(all_symbols_read_hook): Call unique_segment_for_sections.
2012-08-24 Sriraman Tallam <tmsriram@google.com>
* plugin-api.h (ld_plugin_allow_unique_segment_for_sections):
New interface.
(ld_plugin_unique_segment_for_sections): New interface.
(LDPT_ALLOW_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
(LDPT_UNIQUE_SEGMENT_FOR_SECTIONS): New enum val.
(tv_allow_unique_segment_for_sections): New member.
(tv_unique_segment_for_sections): New member.
Move misplaced entries from gdb/ChangeLog to gdb/doc/ChangeLog.
2012-08-23 Khoo Yit Phang <khooyp@cs.umd.edu>
Document how to return from "python-interactive" to GDB.
* gdb.texinfo (Python Commands): Update documentation.
2012-08-22 Khoo Yit Phang <khooyp@cs.umd.edu>
Add a new "python-interactive" command that starts a standard
Python interactive prompt with "pi" as alias, and add "py" as
an alias to "python".
* gdb.texinfo (Python Commands): Document the new commands.
* gas/config/tc-arm.c (CVT_FLAVOUR_VAR): New define.
(CVT_VAR): New helper define.
(neon_cvt_flavour): New enumeration, function renamed...
(get_neon_cvt_flavour): ...to this.
(do_vfp_nsyn_cvt): Update to use new neon_cvt_flavour.
(do_vfp_nsyn_cvtz): Likewise.
(do_neon_cvt_1): Likewise.
* gas/config/tc-arm.c (asm_barrier_opt): Add arch field.
(mark_feature_used): New function.
(parse_barrier): Check specified option is valid for the
specified architecture.
(UL_BARRIER): New macro.
(barrier_opt_names): Update for new barrier options.
* gas/testsuite/gas/arm/armv8-a-barrier.s: New testcase.
* gas/testsuite/gas/arm/armv8-a-barrier-arm.d: Likewise.
* gas/testsuite/gas/arm/armv8-a-barrier-thumb.d: Likewise.
* opcodes/arm-dis.c (data_barrier_option): New function.
(print_insn_arm): Use data_barrier_option.
(print_insn_thumb32): Use data_barrier_option.
Document how to return from "python-interactive" to GDB.
* doc/gdb.texinfo (Python Commands): Update documentation.
* python/python.c (_initialize_python): Update documentation.
Enable readline in Python in a GDB-specific way and block the
standard Python readline module to prevent conflicts with GDB.
* Makefile.in (SUBDIR_PYTHON_OBS): Add py-gdb-readline.o.
(SUBDIR_PYTHON_SRCS): Add python/py-gdb-readline.c.
(py-gdb-readline.o): Add rule to compile python/py-gdb-readline.c.
* python/py-gdb-readline.c: New file.
* python/python-internal.h (gdbpy_initialize_gdb_readline): New
prototype.
* python/python.c (_initialize_python): Call
gdbpy_initialize_gdb_readline.
Add a new "python-interactive" command that starts a standard
Python interactive prompt with "pi" as alias, and add "py" as
an alias to "python".
* NEWS: Mention the new commands.
* doc/gdb.texinfo (Python Commands): Document the new
commands.
* python/python.c (eval_python_command): New function.
(python_interactive_command): For "python-interactive" with
arguments, call eval_python_command. For "python-interactive"
without arguments, call PyRun_InteractiveLoop.
(_initialize_python): Add "python-interactive" command with
"pi" as alias, and add "py" as an alias to "python".
Pierre Muller [Tue, 21 Aug 2012 15:43:46 +0000 (15:43 +0000)]
* symfile.c (allocate_symtab): Use host_address_to_string
function instead of cast of pointer to long which is not
compatible with x86_64-w64-mingw32 build.
Tom Tromey [Mon, 20 Aug 2012 14:32:31 +0000 (14:32 +0000)]
* vms-lib.c (_bfd_vms_lib_get_module): Use bfd_zmalloc for
areltdata.
* opncls.c (_bfd_delete_bfd): Free arelt_data.
* mach-o.c (bfd_mach_o_fat_member_init): Use bfd_zmalloc for
areltdata.
* ecoff.c (_bfd_ecoff_slurp_armap): Use free for mapdata.
* coff-rs6000.c (_bfd_xcoff_read_ar_hdr): Use bfd_zmalloc for
areltdata.
(xcoff_write_archive_contents_old): Likewise.
(xcoff_write_archive_contents_big): Likewise.
* archive64.c (bfd_elf64_archive_slurp_armap): Use free for
areltdata.
* archive.c (_bfd_generic_read_ar_hdr_mag): Use bfd_zmalloc and
free for areltdata.
(_bfd_get_elt_at_filepos): Likewise. Clear n_nfd->arelt_data on
failure.
(do_slurp_bsd_armap): Use bfd_zmalloc and free for areltdata.
(do_slurp_coff_armap): Likewise.
(_bfd_slurp_extended_name_table): Likewise.
(bfd_slurp_bsd_armap_f2): Likewise. Don't leak 'mapdata'.
Alan Modra [Sat, 18 Aug 2012 11:12:50 +0000 (11:12 +0000)]
* powerpc.cc: Formatting and white space.
(Powerpc_relobj): Rename got2_section_ to special_.
Add opd_ent_shndx_ and opd_ent_off_ vectors.
(Powerpc_relobj::opd_shndx, init_opd, get_opd_ent, set_opd_ent,
scan_opd_relocs, do_read_relocs, opd_ent_ndx): New functions.
(Target_powerpc): Add Address typedef and invalid_address. Use
throughout.
(Target_powerpc::is_branch_reloc): New function.
(Powerpc_relocate_functions): Add Address typedef, use throughout.
(Powerpc_relocate_functions:rela, rela_ua): Correct type used
for dst_mask, value and addend.
(Powerpc_relobj::do_find_special_sections): Find .opd for 64-bit.
(ld_2_1, cror_15_15_15, cror_31_31_31): New insn constants.
(Output_data_glink::do_write): Correct toc base. Don't try to use
uint16_t for 24-bit offset. Use get_output_section_offset and
check return.
(Target_powerpc::Scan::local): Handle more relocs.
(Target_powerpc::do_finalize_sections): Set up DT_PPC64_GLINK.
(Target_powerpc::Relocate::relocate): Correct toc base calculation.
Plug in toc restoring insn after plt calls. Translate branches
to function descriptor symbols to corresponding entry point.
(Target_powerpc::relocate_for_relocatable): Check return from
get_output_section_offset.
* symtab.h: Comment typo.
H.J. Lu [Sat, 18 Aug 2012 00:18:31 +0000 (00:18 +0000)]
Remove extra verbose before binutils_run
* binutils-all/ar.exp (long_filenames): Remove extra verbose
before binutils_run.
(thin_archive): Likewise.
(thin_archive_with_nested): Likewise. Also run bfdtest1 on
$archive2.
Keith Seitz [Fri, 17 Aug 2012 17:37:03 +0000 (17:37 +0000)]
PR c++/13356
* gdbtypes.c (strict_type_checking): New variable.
(show_strict_type_checking): New function.
(rank_one_type): Return NS_POINTER_INTEGER_CONVERSION_BADNESS
if strict type checking is disabled.
(_initialize_gdbtypes): Add "check type" subcommand.
* gdbtypes.h (NS_INTEGER_POINTER_CONVERSION_BADNESS): New struct.
PR c++/13356
* gdb.base/default.exp: Update all "check type" tests.
* gdb.base/help.exp: Likewise.
* gdb.base/setshow.exp: Likewise.
* gdb.cp/converts.cc (foo1_type_check): New function.
(foo2_type_check): New function.
(foo3_type_check): New function.
(main): Call new functions.
* converts.exp: Add tests for integer-to-pointer conversions
with/without strict type-checking.
PR c++/13356
* gdb.texinfo (Type and Range Checking): Remove warning.
Remove spurious commas.
Update text and examples for re-implementation of set/show
check type.
(C and C++ Type and Range Checks): Likewise.
Joel Brobecker [Thu, 16 Aug 2012 23:55:02 +0000 (23:55 +0000)]
fix internal_error during fork event handling.
When running on ia64-hpux a program that calls fork, GDB currently
reports the following internal error:
internal-error: Can't determine the current address space of thread process 1882
Here is what happens:
1. GDB receives a "fork" event;
2. handle_inferior_event calls detach_breakpoints for the child process;
3. detach_breakpoints calls ia64's gdbarch remove_breakpoint hook,
which needs to read an entire instruction slot in order to remove
a breakpoint instruction from memory;
4. To read inferior memory, the ia64-hpux code needs to know where
that memory is located relative to the bsp..bspstore area,
and thus needs to read the value of those registers;
5. To get the value of those registers, ia64_hpux_xfer_memory current
uses the current regcache.
The problem is that at the time we are trying to remove the breakpoints
from the child, the child process is not part of the list of inferiors
really known to GDB (it has not been added to inferior_list), so trying
to create a regcache for it triggers an internal error when creating
address space for the regcache (as the address space is ultimately
fetched from the inferior).
To work around this limitation, ia64_hpux_xfer_memory has been modified
to detect the fact the current inferior is not in our inferior list,
and to go, in that case, straight to the source to fetch the registers
it needs.
gdb/ChangeLog:
* ia64-hpux-nat.c (ia64_hpux_get_register_from_save_state_t):
New function.
(ia64_hpux_xfer_memory): Check if inferior_ptid is known before
using the regache. Use ia64_hpux_get_register_from_save_state_t
to access the bsp and bspstore registers if not.
projects / thirdparty / binutils-gdb.git / log
