Before POSIX standardized strsignal(), old systems would hide the
prototype unless the normal extension defines were enabled. So use
the AC_USE_SYSTEM_EXTENSIONS helper for that.
Then make sure we include string.h ourselves in nrun.c rather than
relying on implicit includes via other sim headers.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
The sim code gets the logic for SIM_AC_OPTION_WARNINGS from gdb, but
it hasn't been updated in a good long while. Sync with the latest
gdb code.
There is a sim specific change in here: we disable -Werror for now.
This is because all sim code atm contains warnings. Will probably
have to slowly add a white list of targets which can tolerate this
until everyone is updated.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Python scripting: Add new method Value.referenced_value to
gdb.Value which can dereference pointer as well as reference
values.
* NEWS: Add entry under 'Python scripting' about the new method
Value.referenced_value on gdb.Value objects.
* python/py-value.c (valpy_referenced_value): New function
defining a new method on gdb.Value objects which can dereference
pointer and reference values.
* testsuite/gdb.python/py-value.cc: Add test case for
testing the methodology exposing C++ values to Python.
* testsuite/gdb.python/py-value-cc.exp: Add tests testing the
methodology exposing C++ values to Python.
* testsuite/gdb.python/Makefile.in: Add py-value-cc to
EXECUTABLES.
* docs/gdb.texinfo (Python API/Values From Inferior): Add
description about the new method Value.referenced_value. Add
description on how Value.dereference is different (and similar)
to Value.referenced_value.
* Makefile.am: Add gdb-index.cc, gdb-index.h.
* Makefile.in: Regenerate.
* dwarf_reader.cc (Sized_elf_reloc_mapper::do_initialize): New function.
(Sized_elf_reloc_mapper::symbol_section): New function.
(Sized_elf_reloc_mapper::do_get_reloc_target): New function.
(make_elf_reloc_mapper): New function.
(Dwarf_abbrev_table::clear_abbrev_codes): New function.
(Dwarf_abbrev_table::do_read_abbrevs): New function.
(Dwarf_abbrev_table::do_get_abbrev): New function.
(Dwarf_ranges_table::read_ranges_table): New function.
(Dwarf_ranges_table::read_range_list): New function.
(Dwarf_pubnames_table::read_section): New function.
(Dwarf_pubnames_table::read_header): New function.
(Dwarf_pubnames_table::next_name): New function.
(Dwarf_die::Dwarf_die): New function.
(Dwarf_die::read_attributes): New function.
(Dwarf_die::skip_attributes): New function.
(Dwarf_die::set_name): New function.
(Dwarf_die::set_linkage_name): New function.
(Dwarf_die::attribute): New function.
(Dwarf_die::string_attribute): New function.
(Dwarf_die::int_attribute): New function.
(Dwarf_die::uint_attribute): New function.
(Dwarf_die::ref_attribute): New function.
(Dwarf_die::child_offset): New function.
(Dwarf_die::sibling_offset): New function.
(Dwarf_info_reader::check_buffer): New function.
(Dwarf_info_reader::parse): New function.
(Dwarf_info_reader::do_parse): New function.
(Dwarf_info_reader::do_read_string_table): New function.
(Dwarf_info_reader::lookup_reloc): New function.
(Dwarf_info_reader::get_string): New function.
(Dwarf_info_reader::visit_compilation_unit): New function.
(Dwarf_info_reader::visit_type_unit): New function.
(Sized_dwarf_line_info::Sized_dwarf_line_info): Use
Sized_elf_reloc_mapper.
(Sized_dwarf_line_info::symbol_section): Remove function.
(Sized_dwarf_line_info::read_relocs): Use Sized_elf_reloc_mapper.
(Sized_dwarf_line_info::read_line_mappings): Remove object
parameter, adjust callers.
(Sized_dwarf_line_info::format_file_lineno): Fix type of cast.
* dwarf_reader.h: Include <sys/types.h>.
(class Track_relocs): Remove forward declaration.
(class Elf_reloc_mapper): New class.
(class Sized_elf_reloc_mapper): New class.
(class Dwarf_abbrev_table): New class.
(class Dwarf_range_list): New class.
(class Dwarf_ranges_table): New class.
(class Dwarf_pubnames_table): New class.
(class Dwarf_die): New class.
(class Dwarf_info_reader): New class.
(Sized_dwarf_line_info::read_line_mappings): Remove object parameter.
(Sized_dwarf_line_info::symbol_section): Remove member function.
* dynobj.h (Sized_dynobj::do_section_contents): Refactor code from
base class.
* gdb-index.cc: New source file.
* gdb-index.h: New source file.
* incremental.cc (Sized_relobj_incr::do_layout): Track .debug_info
and .debug_types sections, call Layout::add_to_gdb_index.
(Sized_relobj_incr::do_section_name): Implement.
(Sized_relobj_incr::do_section_contents): Adjust parameter list and
return type; Implement.
(Sized_incr_dynobj::do_section_contents): Adjust parameter list and
return type.
* incremental.h (Sized_relobj_incr::do_section_contents): Adjust
parameter list and return type.
(Sized_incr_dynobj::do_section_contents): Likewise.
* layout.cc: Include gdb-index.h.
(Layout::Layout): Initialize gdb_index_data_.
(Layout::init_fixed_output_section): Check for .gdb_index section.
(Layout::add_to_gdb_index): New function. Instantiate.
* layout.h: Add forward declaration for class Gdb_index.
(Layout::add_to_gdb_index): New member function.
(Layout::gdb_index_data_): New data member.
* main.cc: Include gdb-index.h.
(main): Print statistics for gdb index.
* object.cc (Object::section_contents): Move code into
do_section_contents.
(need_decompressed_section): Check for sections needed when building
gdb index.
(build_compressed_section_map): Likewise.
(Sized_relobj_file::do_read_symbols): Need local symbols when building
gdb index.
(Sized_relobj_file::do_layout): Track .debug_info and .debug_types
sections; call Layout::add_to_gdb_index.
(Sized_relobj_file::do_decompressed_section_contents): Call
do_section_contents directly.
* object.h (Object::do_section_contents): Adjust parameter list and
return type.
(Object::do_decompressed_section_contents): Call do_section_contents
directly.
(Sized_relobj_file::do_section_contents): Adjust parameter list and
return type.
* options.h (class General_options): Add --gdb-index option.
* plugin.cc (Sized_pluginobj::do_section_contents): Adjust parameter
list and return type.
* plugin.h (Sized_pluginobj::do_section_contents): Likewise.
* reloc.h (Track_relocs::checkpoint): New function.
(Track_relocs::reset): New function.
* testsuite/Makefile.am (gdb_index_test_1.sh, gdb_index_test_2.sh):
New test cases.
* testsuite/Makefile.in: Regenerate.
* testsuite/gdb_index_test.cc: New test source file.
* testsuite/gdb_index_test_1.sh: New test source file.
* testsuite/gdb_index_test_2.sh: New test source file.
To reproduce the problem, simply try the following with any program:
(gdb) maintenance agent-eval 1.0
Critical error handler: process [...] terminated due to access violation
(this is on Windows; on GNU/Linux, the libc copes better)
The problem is quite simple: gen_expr is given an expression that
contains an unrecognized operator (OP_DOUBLE in this case). When that
happens, it tries to report an error with a string image of the operator
in the error message. Conversion of the opcode into a string is done
using op_string which, despite its name, probably is not what the author
was looking for. This function returns NULL for a lot of the opcodes,
thus triggering the crash.
There is a function that corresponds to what we are looking for:
expprint.c:op_name. It was static, though, so I made it non-static,
and used it from ax-gdb.c:gen_expr.
gdb/ChangeLog:
* expression.h (op_name): Add declaration.
* expprint.c (op_name): Remove declaration. Make non-static.
* ax-gdb.c (gen_expr): Use op_name instead of op_string.
* configure.in (AC_CHECK_HEADERS): Test for windows.h and dlfcn.h.
* plugin.c: Guard include of dlfcn.h if HAVE_DLFCN_H is defined.
Add windows.h header include if HAVE_WINDOWS_H is defined.
(dlerror): New static function if windows variant is used instead
of dlfcn.h.
(dlclose): Likewise.
(dlopen): Likewise.
(dlsym): Likewise.
* configure: Regenerated.
* config.in: Regenerated.
bfd/
2012-03-20 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13880
* elf32-i386.c (elf_i386_relocate_section): Don't issue an error
for R_386_GOTOFF relocation against protected function if
SYMBOLIC_BIND is true.
* elf64-x86-64.c (elf_x86_64_relocate_section): Don't issue an
error for R_X86_64_GOTOFF64 relocation against protected function
when building executable or SYMBOLIC_BIND is true.
ld/testsuite/
2012-03-20 H.J. Lu <hongjiu.lu@intel.com>
PR ld/13880
* ld-i386/i386.exp: Run protected4 and protected5.
* ld-x86-64/x86-64.exp: Likewise.
* ld-i386/protected4.d: New.
* ld-i386/protected4.s: Likewise.
* ld-i386/protected5.d: Likewise.
* ld-i386/protected5.s: Likewise.
* ld-x86-64/protected4.d: Likewise.
* ld-x86-64/protected4.s: Likewise.
* ld-x86-64/protected5.d: Likewise.
* ld-x86-64/protected5.s: Likewise.
registers.
(do_vmsr): Likewise.
(arm_opcode_insns): Do not default to using the FPSCR register in
the VMRS and VMSR registers.
* gas/arm/vfp1xD.s: Add tests of the VMSR ad VMRS instructions in
priviledged modes.
* gas/arm/vfp1xD.d: Update expected output.
* arm.cc (Target_arm::do_define_standard_symbols): New method.
(Target_arm::do_finalize_sections): Remove code which defines
__exidx_start and __exidx_end. Make symbol table parameter
anonymous as it is not used.
* gold.cc (queue_middle_tasks): Call target hook to define any
target-specific symbols.
* target.h (Target::define_standard_symbols): New method.
(Target::do_define_standard_symbols): Same.
* testsuite/Makefile.am (arm_exidx_test): Dump relocations also.
* testsuite/Makefile.in: Regenerate.
* testsuite/arm_exidx.s: Generate data relocations for __exidx_start
and __exidx_end.
* testsuite/arm_exidx_test.sh: Check that no unused dynamic
relocations are generated for __exidx_start and __exidx_end.
Mike Frysinger
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