| Age | Commit message (Collapse) | Author | Files | Lines |
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This removes symbol_set_language and SYMBOL_SET_LANGUAGE in favor of
a new function general_symbol_info::set_language. symbol and minimal_symbol
already inherit from that struct so this works naturally.
gdb/ChangeLog:
2019-12-15 Christian Biesinger <cbiesinger@google.com>
* ada-exp.y (write_ambiguous_var): Update.
* coffread.c (process_coff_symbol): Update.
* ctfread.c (ctf_add_enum_member_cb): Update.
(new_symbol): Update.
* dwarf2read.c (fixup_go_packaging): Update.
(new_symbol): Update.
* language.c (language_alloc_type_symbol): Update.
* mdebugread.c (new_symbol): Update.
* minsyms.c (minimal_symbol_reader::record_full): Update.
* psymtab.c (add_psymbol_to_bcache): Update.
* stabsread.c (define_symbol): Update.
(read_enum_type): Update.
* symtab.c (symbol_set_language): Make this a member function...
(general_symbol_info::set_language): ... here.
* symtab.h (struct general_symbol_info) <set_language>: New function.
(SYMBOL_SET_LANGUAGE): Remove.
(symbol_set_language): Remove.
Change-Id: Ideafb6c384004b9adef793a1192735c501da41d5
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Also renames the member variable to m_language to make code easier to read
when more functions become member functions.
I was originally hoping to eventually make m_language private (after a few
more patches), but unfortunately then it no longer counts as a POD type,
which means gdbsupport/poison.h won't let us use memset to initialize
this type, which psymtabs rely on to clear padding bytes so that bcache
can work properly.
gdb/ChangeLog:
2019-12-15 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_add_block_symbols): Update.
(ada_collect_symbol_completion_matches): Update.
* ax-gdb.c (gen_expr): Update.
* block.c (block_lookup_symbol): Update.
(block_lookup_symbol_primary): Update.
(block_find_symbol): Update.
* cp-namespace.c (cp_lookup_symbol_imports_or_template): Update.
* dbxread.c (process_one_symbol): Update.
* dictionary.c (insert_symbol_hashed): Update.
(collate_pending_symbols_by_language): Update.
(mdict_add_symbol): Update.
* dwarf-index-write.c (write_psymbols): Update.
* dwarf2read.c (fixup_go_packaging): Update.
* findvar.c (read_var_value): Update.
* ft32-tdep.c (ft32_skip_prologue): Update.
* go-lang.c (go_symbol_package_name): Update.
* language.h (scoped_switch_to_sym_language_if_auto::
scoped_switch_to_sym_language_if_auto): Update.
* linespec.c (find_method): Update.
(find_label_symbols_in_block): Update.
* mdebugread.c (parse_symbol): Update.
* mi/mi-cmd-stack.c (list_arg_or_local): Update.
* minsyms.c (add_minsym_to_demangled_hash_table): Update.
(minimal_symbol_reader::install): Update.
* moxie-tdep.c (moxie_skip_prologue): Update.
* parse.c (parse_exp_in_context): Update.
* psymtab.c (psymbol_name_matches): Update.
(match_partial_symbol): Update.
(lookup_partial_symbol): Update.
(psymbol_hash): Update.
(psymbol_compare): Update.
* python/py-framefilter.c (extract_sym): Update.
(py_print_single_arg): Update.
* stabsread.c (define_symbol): Update.
* stack.c (print_frame_arg): Update.
(find_frame_funname): Update.
(info_frame_command_core): Update.
* symfile.c (set_initial_language): Update.
* symtab.c (symbol_set_demangled_name): Update.
(symbol_get_demangled_name): Update.
(symbol_set_language): Update.
(symbol_find_demangled_name): Update.
(symbol_set_names): Update.
(general_symbol_info::natural_name): Update.
(general_symbol_info::demangled_name): Update.
(general_symbol_info::search_name): Update.
(symbol_matches_search_name): Update.
(eq_symbol_entry): Update.
(iterate_over_symbols): Update.
(completion_list_add_symbol): Update.
(completion_list_add_msymbol): Update.
(completion_list_add_fields): Update.
* symtab.h (struct general_symbol_info) <language>: New function.
<language>: Rename to...
<m_language>: ...this.
(SYMBOL_LANGUAGE): Remove.
(MSYMBOL_LANGUAGE): Remove.
(struct symbol) <ctor>: Update.
* xstormy16-tdep.c (xstormy16_skip_prologue): Update.
Change-Id: I6464d477457e61639c63ddf8b145e407a35c235a
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From what I can tell, set_gdbarch_bits_big_endian has never been used.
That is, all architectures since its introduction have simply used the
default, which is simply check the architecture's byte-endianness.
Because this interferes with the scalar_storage_order code, this patch
removes this gdbarch setting entirely. In some places,
type_byte_order is used rather than the plain gdbarch.
gdb/ChangeLog
2019-12-04 Tom Tromey <tromey@adacore.com>
* ada-lang.c (decode_constrained_packed_array)
(ada_value_assign, value_assign_to_component): Update.
* dwarf2loc.c (rw_pieced_value, access_memory)
(dwarf2_compile_expr_to_ax): Update.
* dwarf2read.c (dwarf2_add_field): Update.
* eval.c (evaluate_subexp_standard): Update.
* gdbarch.c, gdbarch.h: Rebuild.
* gdbarch.sh (bits_big_endian): Remove.
* gdbtypes.h (union field_location): Update comment.
* target-descriptions.c (make_gdb_type): Update.
* valarith.c (value_bit_index): Update.
* value.c (struct value) <bitpos>: Update comment.
(unpack_bits_as_long, modify_field): Update.
* value.h (value_bitpos): Update comment.
Change-Id: I379b5e0c408ec8742f7a6c6b721108e73ed1b018
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Testing the scalar_storage_order patch pointed out that it does not
handle floating point properly. This patch fixes this problem.
gdb/ChangeLog
2019-12-04 Tom Tromey <tromey@adacore.com>
* dwarf2read.c (dwarf2_init_float_type)
(dwarf2_init_complex_target_type): Add byte_order parameter.
(read_base_type): Compute byte order earlier.
* gdbtypes.c (init_float_type): Add byte_order parameter.
* gdbtypes.h (init_float_type): Add byte_order parameter.
gdb/testsuite/ChangeLog
2019-12-04 Tom Tromey <tromey@adacore.com>
* gdb.base/endianity.c (struct otherendian) <f>: New field.
(main): Initialize it.
* gdb.base/endianity.exp: Update.
Change-Id: Ic02eb711d80ce678ef0ecf8c506a626e441b8440
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I upgraded to Fedora 30 recently. It includes GCC 9, which gives a
warning for dwarf2read.c:
../../binutils-gdb/gdb/dwarf2read.c:16103:24: warning: ‘discr_offset’ may be used uninitialized in this function [-Wmaybe-uninitialized]
This patch fixes the problem by initializing discr_offset.
Tested by rebuilding.
gdb/ChangeLog
2019-12-04 Tom Tromey <tromey@adacore.com>
* dwarf2read.c (process_structure_scope): Initialize
"discr_offset".
Change-Id: I76a6157921c9beacb641b8a41e10026006621b95
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Add support for strings with dynamic length using the DWARF attribute
DW_AT_string_length.
Currently gFortran generates DWARF for some strings that make use of
DW_AT_string_length like this:
<1><2cc>: Abbrev Number: 20 (DW_TAG_string_type)
<2cd> DW_AT_string_length: 5 byte block: 99 bd 1 0 0 (DW_OP_call4: <0x1bd>)
<2d3> DW_AT_byte_size : 4
<2d4> DW_AT_sibling : <0x2e2>
In this type entry the DW_AT_string_length attribute references a
second DW_TAG_formal_parameter that contains the string length. The
DW_AT_byte_size indicates that the length is a 4-byte value.
This commit extends GDB's DWARF parsing for strings so that we can
create dynamic types as well as static types, based on the attribute
the DWARF contains.
I then extend the dynamic type resolution code in gdbtypes.c to add
support for resolving dynamic strings.
gdb/ChangeLog:
* dwarf2read.c (read_tag_string_type): Read the fields required to
make a dynamic string, and possibly create a dynamic range for the
string.
(attr_to_dynamic_prop): Setup is_reference based on the type of
attribute being processed.
* gdbtypes.c (is_dynamic_type_internal): Handle TYPE_CODE_STRING.
(resolve_dynamic_array): Rename to...
(resolve_dynamic_array_or_string): ...this, update header comment,
and accept TYPE_CODE_STRING.
(resolve_dynamic_type_internal): Handle TYPE_CODE_STRING.
gdb/testsuite/ChangeLog:
* gdb.fortran/array-slices.exp: Add test for dynamic strings.
Change-Id: I03f2d181b26156f48f27a03c8a59f9bd4d71ac17
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This is a minor refactor in preparation for the next commit. Splits
the core of dwarf2_per_cu_addr_sized_int_type out into a separate
function. There should be no user visible changes after this commit.
gdb/ChangeLog:
* dwarf2read.c (dwarf2_per_cu_int_type): New function, takes most
of its implementation from...
(dwarf2_per_cu_addr_sized_int_type): ...here, which now just calls
the new function.
Change-Id: I8b849dd338012ec033b3f0a57d65cec0d7a3bd97
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Currently GDB supports a byte or bit stride on arrays, in DWARF this
would be DW_AT_bit_stride or DW_AT_byte_stride on DW_TAG_array_type.
However, DWARF can also support DW_AT_byte_stride or DW_AT_bit_stride
on DW_TAG_subrange_type, the tag used to describe each dimension of an
array.
Strides on subranges are used by gFortran to represent Fortran arrays,
and this commit adds support for this to GDB.
I've extended the range_bounds struct to include the stride
information. The name is possibly a little inaccurate now, but this
still sort of makes sense, the structure represents information about
the bounds of the range, and also how to move from the lower to the
upper bound (the stride).
I've added initial support for bit strides, but I've never actually
seen an example of this being generated. Further, I don't really see
right now how GDB would currently handle a bit stride that was not a
multiple of the byte size as the code in, for example,
valarith.c:value_subscripted_rvalue seems geared around byte
addressing. As a consequence if we see a bit stride that is not a
multiple of 8 then GDB will give an error.
gdb/ChangeLog:
* dwarf2read.c (read_subrange_type): Read bit and byte stride and
create a range with stride where appropriate.
* f-valprint.c: Include 'gdbarch.h'.
(f77_print_array_1): Take the stride into account when walking the
array. Also convert the stride into addressable units.
* gdbtypes.c (create_range_type): Initialise the stride to
constant zero.
(create_range_type_with_stride): New function, initialise the
range as normal, and then setup the stride.
(has_static_range): Include the stride here. Also change the
return type to bool.
(create_array_type_with_stride): Consider the range stride if the
array isn't given its own stride.
(resolve_dynamic_range): Resolve the stride if needed.
* gdbtypes.h (struct range_bounds) <stride>: New member variable.
(struct range_bounds) <flag_is_byte_stride>: New member variable.
(TYPE_BIT_STRIDE): Define.
(TYPE_ARRAY_BIT_STRIDE): Define.
(create_range_type_with_stride): Declare.
* valarith.c (value_subscripted_rvalue): Take range stride into
account when walking the array.
gdb/testsuite/ChangeLog:
* gdb.fortran/derived-type-striding.exp: New file.
* gdb.fortran/derived-type-striding.f90: New file.
* gdb.fortran/array-slices.exp: New file.
* gdb.fortran/array-slices.f90: New file.
Change-Id: I9af2bcd1f2d4c56f76f5f3f9f89d8f06bef10d9a
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Currently, gdb internally transforms DW_TAG_variant_part into a union
(with some special attbributes). When doing so, it computes the
length of this union from the length of the fields. However, this
computation didn't include the offset of these fields, resulting in
the length being too short.
This is not a problem given the way the code currently works.
However, I have a patch series to switch gdb to value-based printing,
where this does have an impact.
Tested on x86-64 Fedora 28; and, considering that this only affects
Rust, I am checking it in.
gdb/ChangeLog
2019-11-30 Tom Tromey <tom@tromey.com>
* dwarf2read.c (dwarf2_add_field): Include field offset when
computing variant part length.
Change-Id: I25d84fc237eb3c1e7f11f6eaf35ffe198efde6cc
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This is a fix for BZ 25065.
GDB segfaults when running either gdb.cp/subtypes.exp or
gdb.cp/local.exp in conjunction with using the -flto compiler/linker
flag.
A much simpler program, which was used to help create the test for
this fix, is:
-- doit.cc --
int main()
{
class Foo {
public:
int doit ()
{
return 0;
}
};
Foo foo;
return foo.doit ();
}
-- end doit.cc --
gcc -o doit -flto -g doit.cc
gdb -q doit
Reading symbols from doit...
(gdb) ptype main::Foo
type = class Foo {
Segmentation fault (core dumped)
The segfault occurs due to a NULL physname in
c_type_print_base_struct_union in c-typeprint.c. Specifically,
calling is_constructor_name() eventually causes the SIGSEGV is this
code in c-typeprint.c:
const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
int is_full_physname_constructor =
TYPE_FN_FIELD_CONSTRUCTOR (f, j)
|| is_constructor_name (physname)
|| is_destructor_name (physname)
|| method_name[0] == '~';
However, looking at compute_delayed_physnames(), we see that
the TYPE_FN_FIELD_PHYSNAME field should never be NULL. This
field will be set to "" for NULL physnames:
physname = dwarf2_physname (mi.name, mi.die, cu);
TYPE_FN_FIELD_PHYSNAME (fn_flp->fn_fields, mi.index)
= physname ? physname : "";
For this particular case, it turns out that compute_delayed_physnames
wasn't being called, which left TYPE_FN_FIELD_PHYSNAME set to the NULL
value that it started with when that data structure was allocated.
The place to fix it, I think, is towards the end of
inherit_abstract_dies().
My first attempt at fix caused the origin CU's method_list (which is
simply the list of methods whose physnames still need to be computed)
to be added to the CU which is doing the inheriting. One drawback
with this approach is that compute_delayed_physnames is (eventually)
called with a CU that's different than the CU in which the methods
were found. It's not clear whether this will cause problems or not.
A safer approach, which is what I ultimately settled on, is to call
compute_delayed_physnames() from inherit_abstract_dies(). One
potential drawback is that all needed types might not be known at that
point. However, in my testing, I haven't seen a problem along these
lines.
gdb/ChangeLog:
* dwarf2read.c (inherit_abstract_dies): Ensure that delayed
physnames are computed for inherited DIEs.
Change-Id: I6c6ffe96b301a9daab9f653956b89e3a33fa9445
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Similar to the MSYMBOL version of this patch, improves readability
and will eventually allow making name private.
gdb/ChangeLog:
2019-11-22 Christian Biesinger <cbiesinger@google.com>
* ada-exp.y: Update.
* ada-lang.c (sort_choices): Update.
(ada_print_symbol_signature): Update.
(resolve_subexp): Update.
(ada_parse_renaming): Update.
(ada_read_renaming_var_value): Update.
(lesseq_defined_than): Update.
(remove_extra_symbols): Update.
(remove_irrelevant_renamings): Update.
(ada_add_block_symbols): Update.
(ada_collect_symbol_completion_matches): Update.
(ada_is_renaming_symbol): Update.
(aggregate_assign_from_choices): Update.
(ada_evaluate_subexp): Update.
(ada_has_this_exception_support): Update.
(ada_is_non_standard_exception_sym): Update.
(ada_add_exceptions_from_frame): Update.
(ada_add_global_exceptions): Update.
(ada_print_subexp): Update.
* ax-gdb.c (gen_var_ref): Update.
(gen_maybe_namespace_elt): Update.
(gen_expr_for_cast): Update.
(gen_expr): Update.
* block.h: Update.
* blockframe.c (find_pc_partial_function): Update.
* breakpoint.c (print_breakpoint_location): Update.
(update_static_tracepoint): Update.
* btrace.c (ftrace_print_function_name): Update.
(ftrace_function_switched): Update.
* buildsym.c (find_symbol_in_list): Update.
* c-exp.y: Update.
* c-typeprint.c (c_print_typedef): Update.
(c_type_print_template_args): Update.
* cli/cli-cmds.c (edit_command): Update.
(list_command): Update.
(print_sal_location): Update.
* coffread.c (patch_opaque_types): Update.
(process_coff_symbol): Update.
(coff_read_enum_type): Update.
* compile/compile-c-symbols.c (c_symbol_substitution_name): Update.
(convert_one_symbol): Update.
(hash_symname): Update.
(eq_symname): Update.
* compile/compile-cplus-symbols.c (convert_one_symbol): Update.
* compile/compile-cplus-types.c (debug_print_scope): Update.
* compile/compile-loc2c.c (do_compile_dwarf_expr_to_c): Update.
* compile/compile-object-load.c (get_out_value_type): Update.
* cp-namespace.c (cp_scan_for_anonymous_namespaces): Update.
(search_symbol_list): Update.
(cp_lookup_symbol_imports_or_template): Update.
* cp-support.c (overload_list_add_symbol): Update.
* ctfread.c (psymtab_to_symtab): Update.
* dbxread.c (cp_set_block_scope): Update.
* dictionary.c (iter_match_first_hashed): Update.
(iter_match_next_hashed): Update.
(insert_symbol_hashed): Update.
(iter_match_next_linear): Update.
* dictionary.h: Update.
* dwarf2loc.c (func_get_frame_base_dwarf_block): Update.
(locexpr_describe_location_piece): Update.
(locexpr_describe_location_1): Update.
(locexpr_generate_c_location): Update.
(loclist_describe_location): Update.
(loclist_generate_c_location): Update.
* dwarf2read.c (dw2_debug_names_lookup_symbol): Update.
(read_func_scope): Update.
(process_enumeration_scope): Update.
(new_symbol): Update.
(dwarf2_const_value): Update.
(dwarf2_symbol_mark_computed): Update.
* eval.c (evaluate_funcall): Update.
(evaluate_subexp_standard): Update.
* expprint.c (print_subexp_standard): Update.
(dump_subexp_body_standard): Update.
* f-valprint.c (info_common_command_for_block): Update.
* findvar.c (get_hosting_frame): Update.
(default_read_var_value): Update.
* go-lang.c (go_symbol_package_name): Update.
* guile/scm-block.c (bkscm_print_block_smob): Update.
* guile/scm-symbol.c (syscm_print_symbol_smob): Update.
(gdbscm_symbol_name): Update.
(gdbscm_symbol_linkage_name): Update.
(gdbscm_symbol_print_name): Update.
* infcall.c (get_function_name): Update.
* infcmd.c (jump_command): Update.
(finish_command): Update.
* infrun.c (insert_exception_resume_breakpoint): Update.
* linespec.c (canonicalize_linespec): Update.
(create_sals_line_offset): Update.
(convert_linespec_to_sals): Update.
(complete_label): Update.
(find_label_symbols_in_block): Update.
* m2-typeprint.c (m2_print_typedef): Update.
* mdebugread.c (mdebug_reg_to_regnum): Update.
(parse_symbol): Update.
(mylookup_symbol): Update.
* mi/mi-cmd-stack.c (list_arg_or_local): Update.
(list_args_or_locals): Update.
* objc-lang.c (compare_selectors): Update.
(info_selectors_command): Update.
(compare_classes): Update.
(info_classes_command): Update.
(find_imps): Update.
* p-typeprint.c (pascal_print_typedef): Update.
* printcmd.c (build_address_symbolic): Update.
(info_address_command): Update.
(print_variable_and_value): Update.
* python/py-framefilter.c (extract_sym): Update.
(py_print_single_arg): Update.
* python/py-symbol.c (sympy_str): Update.
(sympy_get_name): Update.
(sympy_get_linkage_name): Update.
* python/python.c (gdbpy_rbreak): Update.
* record-btrace.c (btrace_get_bfun_name): Update.
(btrace_call_history): Update.
* rust-lang.c (rust_print_typedef): Update.
* solib-frv.c (frv_fdpic_find_canonical_descriptor): Update.
* stabsread.c (stab_reg_to_regnum): Update.
(define_symbol): Update.
(read_enum_type): Update.
(common_block_end): Update.
(cleanup_undefined_types_1): Update.
(scan_file_globals): Update.
* stack.c (print_frame_arg): Update.
(print_frame_args): Update.
(find_frame_funname): Update.
(info_frame_command_core): Update.
(iterate_over_block_locals): Update.
(print_block_frame_labels): Update.
(do_print_variable_and_value): Update.
(iterate_over_block_arg_vars): Update.
(return_command): Update.
* symmisc.c (dump_symtab_1): Update.
(print_symbol): Update.
* symtab.c (eq_symbol_entry): Update.
(symbol_cache_dump): Update.
(lookup_language_this): Update.
(find_pc_sect_line): Update.
(skip_prologue_sal): Update.
(symbol_search::compare_search_syms): Update.
(treg_matches_sym_type_name): Update.
(search_symbols): Update.
(print_symbol_info): Update.
(rbreak_command): Update.
(completion_list_add_symbol): Update.
(find_gnu_ifunc): Update.
(get_symbol_address): Update.
(search_module_symbols): Update.
(info_module_subcommand): Update.
* symtab.h (SYMBOL_NATURAL_NAME): Remove.
(SYMBOL_LINKAGE_NAME): Remove.
(SYMBOL_DEMANGLED_NAME): Remove.
(SYMBOL_PRINT_NAME): Remove.
(SYMBOL_SEARCH_NAME): Remove.
* tracepoint.c (set_traceframe_context): Update.
(validate_actionline): Update.
(collection_list::collect_symbol): Update.
(encode_actions_1): Update.
(info_scope_command): Update.
(print_one_static_tracepoint_marker): Update.
* typeprint.c (typedef_hash_table::add_template_parameters): Update.
* valops.c (address_of_variable): Update.
(find_overload_match): Update.
(find_oload_champ): Update.
Change-Id: I76bdc8b44eea6876bf03af9d351f8e90cc0154b2
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- Rationale:
It is possible for compilers to indicate the desired byte order
interpretation of scalar variables using the DWARF attribute:
DW_AT_endianity
A type flagged with this variable would typically use one of:
DW_END_big
DW_END_little
which instructs the debugger what the desired byte order interpretation
of the variable should be.
The GCC compiler (as of V6) has a mechanism for setting the desired byte
ordering of the fields within a structure or union. For, example, on a
little endian target, a structure declared as:
struct big {
int v;
short a[4];
} __attribute__( ( scalar_storage_order( "big-endian" ) ) );
could be used to ensure all the structure members have a big-endian
interpretation (the compiler would automatically insert byte swap
instructions before and after respective store and load instructions).
- To reproduce
GCC V8 is required to correctly emit DW_AT_endianity DWARF attributes
in all situations when the scalar_storage_order attribute is used.
A fix for (dwarf endianity instrumentation) for GCC V6-V7 can be found
in the URL field of the following PR:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509
- Test-case:
A new test case (testsuite/gdb.base/endianity.*) is included with this
patch.
Manual testing for mixed endianity code has also been done with GCC V8.
See:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=82509#c4
- Observed vs. expected:
Without this change, using scalar_storage_order that doesn't match the
target, such as
struct otherendian
{
int v;
} __attribute__( ( scalar_storage_order( "big-endian" ) ) );
would behave like the following on a little endian target:
Breakpoint 1 at 0x401135: file endianity.c, line 41.
(gdb) run
Starting program: /home/pjoot/freeware/t/a.out
Missing separate debuginfos, use: debuginfo-install glibc-2.17-292.el7.x86_64
Breakpoint 1, main () at endianity.c:41
41 struct otherendian o = {3};
(gdb) n
43 do_nothing (&o); /* START */
(gdb) p o
$1 = {v = 50331648}
(gdb) p /x
$2 = {v = 0x3000000}
whereas with this gdb enhancement we can access the variable with the user
specified endianity:
Breakpoint 1, main () at endianity.c:41
41 struct otherendian o = {3};
(gdb) p o
$1 = {v = 0}
(gdb) n
43 do_nothing (&o); /* START */
(gdb) p o
$2 = {v = 3}
(gdb) p o.v = 4
$3 = 4
(gdb) p o.v
$4 = 4
(gdb) x/4xb &o.v
0x7fffffffd90c: 0x00 0x00 0x00 0x04
(observe that the 4 byte int variable has a big endian representation in the
hex dump.)
gdb/ChangeLog
2019-11-21 Peeter Joot <peeter.joot@lzlabs.com>
Byte reverse display of variables with DW_END_big, DW_END_little
(DW_AT_endianity) dwarf attributes if different than the native
byte order.
* ada-lang.c (ada_value_binop):
Use type_byte_order instead of gdbarch_byte_order.
* ada-valprint.c (printstr):
(ada_val_print_string):
* ada-lang.c (value_pointer):
(ada_value_binop):
Use type_byte_order instead of gdbarch_byte_order.
* c-lang.c (c_get_string):
Use type_byte_order instead of gdbarch_byte_order.
* c-valprint.c (c_val_print_array):
Use type_byte_order instead of gdbarch_byte_order.
* cp-valprint.c (cp_print_class_member):
Use type_byte_order instead of gdbarch_byte_order.
* dwarf2loc.c (rw_pieced_value):
Use type_byte_order instead of gdbarch_byte_order.
* dwarf2read.c (read_base_type): Handle DW_END_big,
DW_END_little
* f-lang.c (f_get_encoding):
Use type_byte_order instead of gdbarch_byte_order.
* findvar.c (default_read_var_value):
Use type_byte_order instead of gdbarch_byte_order.
* gdbtypes.c (check_types_equal):
Require matching TYPE_ENDIANITY_NOT_DEFAULT if set.
(recursive_dump_type): Print TYPE_ENDIANITY_BIG,
and TYPE_ENDIANITY_LITTLE if set.
(type_byte_order): new function.
* gdbtypes.h (TYPE_ENDIANITY_NOT_DEFAULT): New macro.
(struct main_type) <flag_endianity_not_default>:
New field.
(type_byte_order): New function.
* infcmd.c (default_print_one_register_info):
Use type_byte_order instead of gdbarch_byte_order.
* p-lang.c (pascal_printstr):
Use type_byte_order instead of gdbarch_byte_order.
* p-valprint.c (pascal_val_print):
Use type_byte_order instead of gdbarch_byte_order.
* printcmd.c (print_scalar_formatted):
Use type_byte_order instead of gdbarch_byte_order.
* solib-darwin.c (darwin_current_sos):
Use type_byte_order instead of gdbarch_byte_order.
* solib-svr4.c (solib_svr4_r_ldsomap):
Use type_byte_order instead of gdbarch_byte_order.
* stap-probe.c (stap_modify_semaphore):
Use type_byte_order instead of gdbarch_byte_order.
* target-float.c (target_float_same_format_p):
Use type_byte_order instead of gdbarch_byte_order.
* valarith.c (scalar_binop):
(value_bit_index):
Use type_byte_order instead of gdbarch_byte_order.
* valops.c (value_cast):
Use type_byte_order instead of gdbarch_byte_order.
* valprint.c (generic_emit_char):
(generic_printstr):
(val_print_string):
Use type_byte_order instead of gdbarch_byte_order.
* value.c (unpack_long):
(unpack_bits_as_long):
(unpack_value_bitfield):
(modify_field):
(pack_long):
(pack_unsigned_long):
Use type_byte_order instead of gdbarch_byte_order.
* findvar.c (unsigned_pointer_to_address):
(signed_pointer_to_address):
(unsigned_address_to_pointer):
(address_to_signed_pointer):
(default_read_var_value):
(default_value_from_register):
Use type_byte_order instead of gdbarch_byte_order.
* gnu-v3-abi.c (gnuv3_make_method_ptr):
Use type_byte_order instead of gdbarch_byte_order.
* riscv-tdep.c (riscv_print_one_register_info):
Use type_byte_order instead of gdbarch_byte_order.
gdb/testsuite/ChangeLog
2019-11-21 Peeter Joot <peeter.joot@lzlabs.com>
* gdb.base/endianity.c: New test.
* gdb.base/endianity.exp: New file.
Change-Id: I4bd98c1b4508c2d7c5a5dbb15d7b7b1cb4e667e2
|
|
This is a cleanup patch in response to a reviewer comment on "Dwarf 5: Handle
debug_str_offsets" patch.
|
|
Since this is now no longer a POD, also give it a constructor that
initializes all fields. (I have considered overloading operator new
to zero-initialize the memory instead; let me know if you prefer that)
gdb/ChangeLog:
2019-11-12 Christian Biesinger <cbiesinger@google.com>
* ada-exp.y (write_ambiguous_var): Update.
* buildsym.c (add_symbol_to_list): Update.
* dwarf2read.c (read_variable): Update.
(new_symbol): Update.
* jit.c (finalize_symtab): Update.
* language.c (language_alloc_type_symbol): Update.
* symtab.c (fixup_symbol_section): Update.
(initialize_objfile_symbol_1): Move code to...
(initialize_objfile_symbol): ...here. Remove now-unnecessary memset.
(allocate_symbol): Update.
(allocate_template_symbol): Update.
(get_symbol_address): Update.
* symtab.h (struct symbol): Inherit from general_symbol_info instead
of having as a field, and add a constructor.
(SYMBOL_VALUE): Update.
(SYMBOL_VALUE_ADDRESS): Update.
(SET_SYMBOL_VALUE_ADDRESS): Update.
(SYMBOL_VALUE_BYTES): Update.
(SYMBOL_VALUE_COMMON_BLOCK): Update.
(SYMBOL_BLOCK_VALUE): Update.
(SYMBOL_VALUE_CHAIN): Update.
(SYMBOL_LANGUAGE): Update.
(SYMBOL_SECTION): Update.
(SYMBOL_OBJ_SECTION): Update.
(SYMBOL_SET_LANGUAGE): Update.
(SYMBOL_SET_LINKAGE_NAME): Update.
(SYMBOL_SET_NAMES): Update.
(SYMBOL_NATURAL_NAME): Update.
(SYMBOL_LINKAGE_NAME): Update.
(SYMBOL_DEMANGLED_NAME): Update.
(SYMBOL_SEARCH_NAME): Update.
(SYMBOL_MATCHES_SEARCH_NAME): Update.
(struct symbol): Update.
(struct template_symbol): Update.
(struct rust_vtable_symbol): Update.
* xcoffread.c (SYMBOL_DUP): Update.
Change-Id: I05b1628455bcce3efaa101e65ef051708d17eb07
|
|
Add a new command 'info modules' that lists all of the modules GDB
knows about from the debug information.
A module is a debugging entity in the DWARF defined with
DW_TAG_module, currently Fortran is known to use this tag for its
modules. I'm not aware of any other language that currently makes use
of DW_TAG_module.
The output style is similar to the 'info type' output:
(gdb) info modules
All defined modules:
File info-types.f90:
16: mod1
24: mod2
(gdb)
Where the user is told the file the module is defined in and, on the
left hand side, the line number at which the module is defined along
with the name of the module.
This patch is a new implementation of an idea originally worked on by
Mark O'Connor, Chris January, David Lecomber, and Xavier Oro from ARM.
gdb/ChangeLog:
* dwarf2read.c (dw2_symtab_iter_next): Handle MODULE_DOMAIN.
(dw2_expand_marked_cus): Handle MODULES_DOMAIN.
(dw2_debug_names_iterator::next): Handle MODULE_DOMAIN and
MODULES_DOMAIN.
(scan_partial_symbols): Only create partial module symbols for non
declarations.
* psymtab.c (recursively_search_psymtabs): Handle MODULE_DOMAIN
and MODULES_DOMAIN.
* symtab.c (search_domain_name): Likewise.
(search_symbols): Likewise.
(print_symbol_info): Likewise.
(symtab_symbol_info): Likewise.
(info_modules_command): New function.
(_initialize_symtab): Register 'info modules' command.
* symtab.h (enum search_domain): Add MODULES_DOMAIN.
* NEWS: Mention new 'info modules' command.
gdb/doc/ChangeLog:
* gdb.texinfo (Symbols): Document new 'info modules' command.
gdb/testsuite/ChangeLog:
* gdb.fortran/info-modules.exp: New file.
* gdb.fortran/info-types.exp: Build with new file.
* gdb.fortran/info-types.f90: Include and use new module.
* gdb.fortran/info-types-2.f90: New file.
Change-Id: I2b781dd5a06bcad04620ccdc45f01a0f711adfad
|
|
Just some code cleanup. This change has a few benefits:
- Shorter argument list in the functions
- If the caller needs to calculate the string, they no longer
need to explicitly call strlen
- It is easy to pass std::string to this (done in one place
currently)
This also updates a couple of places that were passing 0/1 to
a bool parameter.
gdb/ChangeLog:
2019-10-29 Christian Biesinger <cbiesinger@google.com>
* coffread.c (record_minimal_symbol): Update.
(process_coff_symbol): Update.
* dbxread.c (read_dbx_symtab): Update.
* dwarf2read.c (add_partial_symbol): Update.
(fixup_go_packaging): Update.
(load_partial_dies): Update.
(new_symbol): Update.
* elfread.c (record_minimal_symbol): Change signature to use
gdb::string_view instead of name+len.
(elf_symtab_read): Update.
(elf_rel_plt_read): Update.
* mdebugread.c (parse_partial_symbols): Update.
(handle_psymbol_enumerators): Update.
(new_symbol): Update.
* minsyms.c (minimal_symbol_reader::record_full): Change signature
to use gdb::string_view instead of name+len.
* minsyms.h (class minimal_symbol_reader) <record_full>: Likewise.
* psympriv.h (add_psymbol_to_list): Likewise.
* psymtab.c (add_psymbol_to_bcache): Likewise.
(add_psymbol_to_list): Likewise.
* stabsread.c (define_symbol): Update.
* symtab.c (symbol_set_names): Change signature to use gdb::string_view.
* symtab.h (SYMBOL_SET_NAMES): Likewise.
(symbol_set_names): Likewise.
* xcoffread.c (scan_xcoff_symtab): Update.
Change-Id: I2675c6865e0368f9c755a1081088a53aa54dda4c
|
|
* Fix handling of file and directory indexes in line tables; in DWARF 5 the
indexes are zero-based. Make file_names field private to abstract this detail
from the clients. Introduce file_names, is_valid_file_index and
file_names_size methods. Reflect these changes in clients.
* Handle DW_FORM_data16 in read_formatted_entries; it is used to record MD5
of the file entries in DWARF 5.
* Fix a bug in line header parsing that calculates the length of the header
incorrectly. (Seemingly this manifests itself only in DWARF 5).
Tested with CC=/usr/bin/gcc (version 8.3.0) against master branch (also with
-gsplit-dwarf and -gdwarf-4 flags) and there was no increase in the set of
tests that fails. (gdb still cannot debug a 'hello world' program with DWARF 5,
so for the time being, this is all we care about).
This is part of an effort to support DWARF 5 in gdb.
gdb/ChangeLog:
* dwarf2read.c (dir_index): Change type.
(file_name_index): Likewise.
(line_header::include_dir_at): Change comment and implementation on
whether it is DWARF 5.
(line_header::is_valid_file_index): New function.
(line_header::file_name_at): Change comment and implementation on
whether it is DWARF 5.
(line_header::file_names): Change to private field renamed as
m_file_names and introduce a new accessor method.
(line_header::file_names_size): New method.
(line_header::include_dirs): Change to private field and rename as
m_include_dirs.
(dw2_get_file_names_reader): Define local var at a smaller scope and
reflect API change.
(dwarf2_cu::setup_type_unit_groups): Reflect API change.
(process_structure_scope): Likewise.
(line_header::add_include_dir): Change message and reflect renaming.
(line_header::add_file_name): Likewise.
(read_formatted_entries): Handle DW_FORM_data16.
(dwarf_decode_line_header): Fix line header length calculation.
(psymtab_include_file_name): Change comment and API.
(lnp_state_machine::m_file): Update comment and reflect type change.
(lnp_state_machine::record_line): Reflect type change.
(dwarf_decode_lines): Reflect API change.
(file_file_name): Likewise.
(file_full_name): Likewise.
|
|
Fix typos in comments. NFC.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-10-18 Tom de Vries <tdevries@suse.de>
* aarch64-tdep.c: Fix typos in comments.
* ada-lang.c: Same.
* ada-tasks.c: Same.
* alpha-tdep.c: Same.
* alpha-tdep.h: Same.
* amd64-nat.c: Same.
* amd64-windows-tdep.c: Same.
* arc-tdep.c: Same.
* arc-tdep.h: Same.
* arch-utils.c: Same.
* arm-nbsd-tdep.c: Same.
* arm-tdep.c: Same.
* ax-gdb.c: Same.
* blockframe.c: Same.
* btrace.c: Same.
* c-varobj.c: Same.
* coff-pe-read.c: Same.
* coffread.c: Same.
* cris-tdep.c: Same.
* darwin-nat.c: Same.
* dbxread.c: Same.
* dcache.c: Same.
* disasm.c: Same.
* dtrace-probe.c: Same.
* dwarf-index-write.c: Same.
* dwarf2-frame-tailcall.c: Same.
* dwarf2-frame.c: Same.
* dwarf2read.c: Same.
* eval.c: Same.
* exceptions.c: Same.
* fbsd-tdep.c: Same.
* findvar.c: Same.
* frame.c: Same.
* frv-tdep.c: Same.
* gnu-v3-abi.c: Same.
* go32-nat.c: Same.
* h8300-tdep.c: Same.
* hppa-tdep.c: Same.
* i386-linux-tdep.c: Same.
* i386-tdep.c: Same.
* ia64-libunwind-tdep.c: Same.
* ia64-tdep.c: Same.
* infcmd.c: Same.
* infrun.c: Same.
* linespec.c: Same.
* linux-nat.c: Same.
* linux-thread-db.c: Same.
* machoread.c: Same.
* mdebugread.c: Same.
* mep-tdep.c: Same.
* mn10300-tdep.c: Same.
* namespace.c: Same.
* objfiles.c: Same.
* opencl-lang.c: Same.
* or1k-tdep.c: Same.
* osabi.c: Same.
* ppc-linux-nat.c: Same.
* ppc-linux-tdep.c: Same.
* ppc-sysv-tdep.c: Same.
* printcmd.c: Same.
* procfs.c: Same.
* record-btrace.c: Same.
* record-full.c: Same.
* remote-fileio.c: Same.
* remote.c: Same.
* rs6000-tdep.c: Same.
* s12z-tdep.c: Same.
* score-tdep.c: Same.
* ser-base.c: Same.
* ser-go32.c: Same.
* skip.c: Same.
* sol-thread.c: Same.
* solib-svr4.c: Same.
* solib.c: Same.
* source.c: Same.
* sparc-nat.c: Same.
* sparc-sol2-tdep.c: Same.
* sparc-tdep.c: Same.
* sparc64-tdep.c: Same.
* stabsread.c: Same.
* stack.c: Same.
* symfile.c: Same.
* symtab.c: Same.
* target-descriptions.c: Same.
* target-float.c: Same.
* thread.c: Same.
* utils.c: Same.
* valops.c: Same.
* valprint.c: Same.
* value.c: Same.
* varobj.c: Same.
* windows-nat.c: Same.
* xcoffread.c: Same.
* xstormy16-tdep.c: Same.
* xtensa-tdep.c: Same.
Change-Id: I5175f1b107bfa4e1cdd4a3361ccb4739e53c75c4
|
|
Fix typos in comments. NFC.
Tested on x86_64-linux.
gdb/ChangeLog:
2019-10-17 Tom de Vries <tdevries@suse.de>
* arm-nbsd-nat.c: Fix typos in comments.
* arm-tdep.c: Same.
* darwin-nat-info.c: Same.
* dwarf2read.c: Same.
* elfread.c: Same.
* event-top.c: Same.
* findvar.c: Same.
* gdbtypes.c: Same.
* hppa-tdep.c: Same.
* i386-tdep.c: Same.
* jit.c: Same.
* main.c: Same.
* mdebugread.c: Same.
* moxie-tdep.c: Same.
* nto-procfs.c: Same.
* osabi.c: Same.
* ppc-linux-tdep.c: Same.
* remote.c: Same.
* riscv-tdep.c: Same.
* s390-tdep.c: Same.
* sh-tdep.c: Same.
* sparc-linux-tdep.c: Same.
* sparc-nat.c: Same.
* stack.c: Same.
* target-descriptions.c: Same.
* top.c: Same.
* varobj.c: Same.
Change-Id: I6047967abd2d51c9000dea15184d19f4e952c3ff
|
|
This is another fuzzer bug, gdb/23567. This time, the fuzzer has
specifically altered the size of .debug_str:
$ eu-readelf -S objdump
Section Headers:
[Nr] Name Type Addr Off Size ES Flags Lk Inf Al
[31] .debug_str PROGBITS 0000000000000000 0057116d ffffffffffffffff 1 MS 0 0 1
When this file is loaded into GDB, the DWARF reader crashes attempting
to access the string table (or it may just store a bunch of nonsense):
[gdb-8.3-6-fc30]
$ gdb -nx -q objdump
BFD: warning: /path/to/objdump has a corrupt section with a size (ffffffffffffffff) larger than the file size
Reading symbols from /path/to/objdump...
Segmentation fault (core dumped)
Nick has already committed a BFD patch to issue the warning seen above.
[gdb master 6acc1a0b]
$ gdb -BFD: warning: /path/to/objdump has a corrupt section with a size (ffffffffffffffff) larger than the file size
Reading symbols from /path/to/objdump...
(gdb) inf func
All defined functions:
File ./../include/dwarf2.def:
186: const
8 *>(.:
;'@�B);
747: const
8 *�(.:
;'@�B);
701: const
8 *�D �
(.:
;'@�B);
71: const
8 *(.:
;'@�B);
/* and more gibberish */
Consider read_indirect_string_at_offset_from:
static const char *
read_indirect_string_at_offset_from (struct objfile *objfile,
bfd *abfd, LONGEST str_offset,
struct dwarf2_section_info *sect,
const char *form_name,
const char *sect_name)
{
dwarf2_read_section (objfile, sect);
if (sect->buffer == NULL)
error (_("%s used without %s section [in module %s]"),
form_name, sect_name, bfd_get_filename (abfd));
if (str_offset >= sect->size)
error (_("%s pointing outside of %s section [in module %s]"),
form_name, sect_name, bfd_get_filename (abfd));
gdb_assert (HOST_CHAR_BIT == 8);
if (sect->buffer[str_offset] == '\0')
return NULL;
return (const char *) (sect->buffer + str_offset);
}
With sect_size being ginormous, the code attempts to access
sect->buffer[GINORMOUS], and depending on the layout of memory,
GDB either stores a bunch of gibberish strings or crashes.
This is an attempt to mitigate this by implementing a similar approach
used by BFD. In our case, we simply reject the section with the invalid
length:
$ ./gdb -nx -q objdump
BFD: warning: /path/to/objdump has a corrupt section with a size (ffffffffffffffff) larger than the file size
Reading symbols from /path/to/objdump...
warning: Discarding section .debug_str which has a section size (ffffffffffffffff) larger than the file size [in module /path/to/objdump]
DW_FORM_strp used without .debug_str section [in module /path/to/objdump]
(No debugging symbols found in /path/to/objdump)
(gdb)
Unfortunately, I have not found a way to regression test this, since it
requires poking ELF section headers.
gdb/ChangeLog:
2019-10-16 Keith Seitz <keiths@redhat.com>
PR gdb/23567
* dwarf2read.c (dwarf2_per_objfile::locate_sections): Discard
sections whose size is greater than the file size.
Change-Id: I896ac3b4eb2207c54e8e05c16beab3051d9b4b2f
|
|
Removes vec.c and vec.h from the source tree, and remove all the
remaining includes of vec.h. There should be no user visible changes
after this commit.
I did have a few issues rebuilding GDB after applying this patch due
to cached dependencies, I found that running this command in the build
directory resolved my build issues without requiring a 'make clean':
rm -fr gdb/gdbserver/gdbsupport/.deps/
gdb/ChangeLog:
* Makefile.in: Remove references to vec.h and vec.c.
* aarch64-tdep.c: No longer include vec.h.
* ada-lang.c: Likewise.
* ada-lang.h: Likewise.
* arm-tdep.c: Likewise.
* ax.h: Likewise.
* breakpoint.h: Likewise.
* charset.c: Likewise.
* cp-support.h: Likewise.
* dtrace-probe.c: Likewise.
* dwarf2read.c: Likewise.
* extension.h: Likewise.
* gdb_bfd.c: Likewise.
* gdbsupport/gdb_vecs.h: Likewise.
* gdbsupport/vec.c: Remove.
* gdbsupport/vec.h: Remove.
* gdbthread.h: Likewise.
* guile/scm-type.c: Likewise.
* inline-frame.c: Likewise.
* machoread.c: Likewise.
* memattr.c: Likewise.
* memrange.h: Likewise.
* namespace.h: Likewise.
* nat/linux-btrace.h: Likewise.
* osdata.c: Likewise.
* parser-defs.h: Likewise.
* progspace.h: Likewise.
* python/py-type.c: Likewise.
* record-btrace.c: Likewise.
* rust-exp.y: Likewise.
* solib-target.c: Likewise.
* stap-probe.c: Likewise.
* target-descriptions.c: Likewise.
* target-memory.c: Likewise.
* target.h: Likewise.
* varobj.c: Likewise.
* varobj.h: Likewise.
* xml-support.h: Likewise.
gdb/gdbserver/ChangeLog:
* Makefile.in: Remove references to vec.c.
Change-Id: I0c91d7170bf1b5e992a387fcd9fe4f2abe343bb5
|
|
This removes a use of VEC from GDB, from dwarf2read.c. This removal
is not very clean, and would probably benefit from additional
refactoring in the future.
The problem here is that the VEC is contained within struct
dwarf2_per_cu_data, which is treated as POD in dwarf2read.c. As such
it is actually a VEC pointer. When converting this to a std::vector
in an ideal world we would not use a std::vector pointer, and use the
std::vector directly. Sadly, to do that would require some rewriting
in dwarf2read.c - my concern would be introducing bugs during this
rewrite.
If we move to a std::vector pointer then we need to take care to
handle the case where the pointer is null. The old VEC library would
handle null for us, making the VEC interface very clean. With
std::vector we need to handle the null pointer case ourselves.
The achieve this then I've added a small number of function that wrap
up access to the std::vector, hopefully hiding the null pointer
management.
The final ugliness with this conversion is that, ideally, when
wrapping a data member behind an interface I would make the data
member private, however, treating the structure as POD once again
prevents this, so we are left with the data member being public, but
access (ideally) being through the published interface functions.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* gdb/dwarf2read.c (dwarf2_per_objfile::~dwarf2_per_objfile):
Update for new std::vector based implementation.
(process_psymtab_comp_unit_reader): Likewise.
(scan_partial_symbols): Likewise.
(recursively_compute_inclusions): Likewise.
(compute_compunit_symtab_includes): Likewise.
(process_imported_unit_die): Likewise.
(queue_and_load_dwo_tu): Likewise.
(follow_die_sig_1): Likewise.
* gdb/dwarf2read.h: Remove DEF_VEC_P.
(typedef dwarf2_per_cu_ptr): Remove.
(struct dwarf2_per_cu_data) <imported_symtabs_empty>: New
function.
(struct dwarf2_per_cu_data) <imported_symtabs_push>: New function.
(struct dwarf2_per_cu_data) <imported_symtabs_size>: New function.
(struct dwarf2_per_cu_data) <imported_symtabs_free>: New function.
(struct dwarf2_per_cu_data) <imported_symtabs>: Change to
std::vector.
Change-Id: Id0f4bda977c9dd83b0ba3d7fb42f7e5e2b6869c8
|
|
include-what-you-use says:
../../../src/binutils-gdb/gdb/dwarf2read.c should remove these lines:
- #include <ctype.h> // lines 67-67
- #include <sys/stat.h> // lines 59-59
- #include <sys/types.h> // lines 83-83
- #include <cmath> // lines 88-88
- #include <forward_list> // lines 90-90
- #include <set> // lines 89-89
- #include <unordered_set> // lines 85-85
- #include "completer.h" // lines 60-60
- #include "expression.h" // lines 44-44
- #include "gdbsupport/byte-vector.h" // lines 78-78
- #include "gdbsupport/filestuff.h" // lines 71-71
- #include "gdbsupport/gdb_unlinker.h" // lines 74-74
After a quick glance, that makes sense, so this patch removes them.
gdb/ChangeLog:
* dwarf2read.c: Remove includes.
Change-Id: I13cfcb2f1d747144fddba7f66b329630b79dae90
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PR rust/24976 points out a crash in gdb when a single-field union is
used in Rust.
The immediate problem was a NULL pointer dereference in
quirk_rust_enum. However, that code is also erroneously treating a
single-field union as if it were a univariant enum. Looking at the
output of an older Rust compiler, it turns out that univariant enums
are distinguished by having a single *anonymous* field. This patch
changes quirk_rust_enum to limit its fixup to this case.
Tested with a new-enough version of the Rust compiler to cause the
crash; plus by using an older executable that uses the old univariant
encoding.
gdb/ChangeLog
2019-10-03 Tom Tromey <tom@tromey.com>
PR rust/24976:
* dwarf2read.c (quirk_rust_enum): Handle single-element unions.
gdb/testsuite/ChangeLog
2019-10-03 Tom Tromey <tom@tromey.com>
PR rust/24976:
* gdb.rust/simple.rs (Union2): New type.
(main): Use Union2.
* gdb.rust/simple.exp: Add test.
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|
This patch is a rebase and update of the following three patches:
https://sourceware.org/ml/gdb-patches/2018-11/msg00298.html
https://sourceware.org/ml/gdb-patches/2018-11/msg00302.html
https://sourceware.org/ml/gdb-patches/2018-11/msg00301.html
I have merged these together into a single commit as the second patch,
adding scope support to nested subroutines, means that some of the
changes in the first patch are now no longer useful and would have to
be backed out. The third patch is tightly coupled to the changes in
the second of these patches and I think deserves to live together with
it.
There is an extra change in cp-namespace.c that is new, this resolves
an issue with symbol lookup when placing breakpoints from within
nested subroutines.
There is also an extra test added to this commit 'nested-funcs-2.exp'
that was written by Richard Bunt from ARM, this offers some additional
testing of breakpoints on nested functions.
After this commit it is possible to place breakpoints on nested
Fortran subroutines and functions by using a fully scoped name, for
example, given this simple Fortran program:
program greeting
call message
contains
subroutine message
print *, "Hello World"
end subroutine message
end program greeting
It is possible to place a breakpoint in 'message' with:
(gdb) break greeting::message
Breakpoint 1 at 0x4006c9: file basic.f90, line 5.
What doesn't work with this commit is placing a breakpoint like this:
(gdb) break message
Function "message" not defined.
Making this work will come in a later commit.
gdb/ChangeLog:
* cp-namespace.c (cp_search_static_and_baseclasses): Only search
for nested static variables when searchin VAR_DOMAIN.
* dwarf2read.c (add_partial_symbol): Add nested subroutines to the
global scope, update comment.
(add_partial_subprogram): Call add_partial_subprogram recursively
for nested subroutines when processinng Fortran.
(load_partial_dies): Process the child entities of a subprogram
when processing Fortran.
(partial_die_parent_scope): Handle building scope
for Fortran nested functions.
(process_die): Record that nested functions have a scope.
(new_symbol): Always record Fortran subprograms on the global
symbol list.
(determine_prefix): How to build the prefix for Fortran
subprograms.
gdb/testsuite/ChangeLog:
* gdb.fortran/nested-funcs.exp: Tests for placing breakpoints on
nested functions.
* gdb.fortran/nested-funcs.f90: Update expected results.
* gdb.fortran/nested-funcs-2.exp: New file.
* gdb.fortran/nested-funcs-2.f90: New file.
gdb/doc/ChangeLog:
* doc/gdb.texinfo (Fortran Operators): Describe scope operator.
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In the following 3 commits:
commit df07e2c772dab40d268dc44c78bb087c4b75b3c6
Date: Wed Sep 25 16:10:50 2019 +0100
gdb: Remove a use of VEC from dwarf2read.{c,h}
commit 554ac434b02465f1fc925b0ae3393fb841e0d59c
Date: Thu Sep 19 13:17:59 2019 -0400
gdb: Change a VEC to std::vector in btrace.{c,h}
commit 46f29a9a260da1a03176682aff63bad03d8f2e8b
Date: Mon Sep 16 09:12:27 2019 -0400
gdb: Remove a VEC from gdbsupport/btrace-common.h
I incorrectly wrote 'std::vector <...>' instead of 'std::vector<...>',
this commit fixes this mistake. There should be no user visible
changes after this commit.
gdb/ChangeLog:
* btrace.c (btrace_add_pc): Remove whitespace before the template
parameter in 'std::vector <...>'.
(parse_xml_btrace_block): Likewise.
(btrace_maint_decode_pt): Likewise.
(btrace_maint_update_packets): Likewise.
(btrace_maint_print_packets): Likewise.
* btrace.h (struct btrace_maint_info): Likewise.
* dwarf2read.c (struct type_unit_group): Likewise.
(build_type_psymtabs_reader): Likewise.
* gdbsupport/btrace-common.c (btrace_data_append): Likewise.
* gdbsupport/btrace-common.h (struct btrace_data_bts): Likewise.
* nat/linux-btrace.c (perf_event_read_bts): Likewise.
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In ELF, if a data symbol is defined in a shared library and used by
the main program, it will be subject to a "copy relocation". In this
scenario, the main program has a copy of the symbol in question, and a
relocation that tells ld.so to copy the data from the shared library.
Then the symbol in the main program is used to satisfy all references.
This patch changes gdb to handle this scenario. Data symbols coming
from ELF shared libraries get a special flag that indicates that the
symbol's address may be subject to copy relocation.
I looked briefly into handling copy relocations by looking at the
actual relocations in the main program, but this seemed difficult to
do with BFD.
Note that no caching is done here. Perhaps this could be changed if
need be; I wanted to avoid possible problems with either objfile
lifetimes and changes, or conflicts with the long-term (vapor-ware)
objfile splitting project.
gdb/ChangeLog
2019-10-02 Tom Tromey <tromey@adacore.com>
* symmisc.c (dump_msymbols): Don't use MSYMBOL_VALUE_ADDRESS.
* ada-lang.c (lesseq_defined_than): Handle
LOC_STATIC.
* dwarf2read.c (dwarf2_per_objfile): Add can_copy
parameter.
(dwarf2_has_info): Likewise.
(new_symbol): Set maybe_copied on symbol when
appropriate.
* dwarf2read.h (dwarf2_per_objfile): Add can_copy
parameter.
<can_copy>: New member.
* elfread.c (record_minimal_symbol): Set maybe_copied
on symbol when appropriate.
(elf_symfile_read): Update call to dwarf2_has_info.
* minsyms.c (lookup_minimal_symbol_linkage): New
function.
* minsyms.h (lookup_minimal_symbol_linkage): Declare.
* symtab.c (get_symbol_address, get_msymbol_address):
New functions.
* symtab.h (get_symbol_address, get_msymbol_address):
Declare.
(SYMBOL_VALUE_ADDRESS, MSYMBOL_VALUE_ADDRESS): Handle
maybe_copied.
(struct symbol, struct minimal_symbol) <maybe_copied>:
New member.
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This changes SYMBOL_VALUE_ADDRESS to be an rvalue. The symbol readers
generally assign using this, so this also introduces
SET_SYMBOL_VALUE_ADDRESS and updates the readers. Making this change
is useful in a subsequent patch, which redefined SYMBOL_VALUE_ADDRESS.
gdb/ChangeLog
2019-10-02 Tom Tromey <tromey@adacore.com>
* coffread.c (process_coff_symbol): Update.
* dwarf2read.c (var_decode_location, new_symbol): Update.
* mdebugread.c (parse_symbol): Update.
* objfiles.c (relocate_one_symbol): Update.
* stabsread.c (define_symbol, fix_common_block)
(scan_file_globals): Update.
* symtab.h (SYMBOL_VALUE_ADDRESS): Expand to an rvalue.
(SET_SYMBOL_VALUE_ADDRESS): New macro.
* xcoffread.c (process_xcoff_symbol): Update.
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Removes a use of VEC from dwarf2read.{c,h} and replaces it with
std::vector. As far as possible this is a like for like replacement
with minimal refactoring.
There should be no user visible changes after this commit.
gdb/ChangeLog:
* dwarf2read.c (struct type_unit_group) <tus>: Convert to
std::vector.
(build_type_psymtabs_reader): Update for std::vector.
(build_type_psymtab_dependencies): Likewise.
* dwarf2read.h: Remove use of DEF_VEC_P.
(typedef sig_type_ptr): Delete.
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* Handle DW_FORM_strx forms everywhere.
Tested with CC=/usr/bin/gcc (version 8.3.0) against master branch (also with
-gsplit-dwarf and -gdwarf-4 flags) and there was no increase in the set of
tests that fails.
This is part of an effort to support DWARF 5 in gdb.
gdb/ChangeLog:
* dwarf2read.c (skip_one_die): Handle DW_FORM_strx forms.
(dwarf2_string_attr): Likewise.
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|
gdb/ChangeLog:
* dwarf2read.c (process_full_comp_unit): Remove whitespace at the EOL.
(process_full_type_unit): Likewise.
(dump_die_shallow): Likewise.
(cu_debug_loc_section): Likewise.
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This converts some of the macros that access struct bfd fields to
inline functions.
bfd/
* archive.c (bfd_generic_archive_p): Use bfd_set_thin_archive.
* bfd-in.h (bfd_get_filename, bfd_get_cacheable, bfd_get_format),
(bfd_get_target, bfd_get_flavour, bfd_family_coff, bfd_big_endian),
(bfd_little_endian, bfd_header_big_endian, bfd_header_little_endian),
(bfd_get_file_flags, bfd_applicable_file_flags),
(bfd_applicable_section_flags, bfd_has_map, bfd_is_thin_archive),
(bfd_valid_reloc_types, bfd_usrdata, bfd_get_start_address),
(bfd_get_symcount, bfd_get_outsymbols, bfd_count_sections),
(bfd_get_dynamic_symcount, bfd_get_symbol_leading_char): Delete.
* bfd/bfd.c (bfd_get_filename, bfd_get_cacheable, bfd_get_format),
(bfd_get_file_flags, bfd_get_start_address, bfd_get_symcount),
(bfd_get_dynamic_symcount, bfd_get_outsymbols, bfd_count_sections),
(bfd_has_map, bfd_is_thin_archive, bfd_set_thin_archive),
(bfd_usrdata, bfd_set_usrdata): New inline functions.
* targets.c (bfd_get_target, bfd_get_flavour),
(bfd_applicable_file_flags, bfd_family_coff, bfd_big_endian),
(bfd_little_endian, bfd_header_big_endian),
(bfd_header_little_endian, bfd_applicable_section_flags),
(bfd_get_symbol_leading_char): New inline functions.
* bfd-in2.h: Regenerate.
binutils/
* ar.c (write_archive): Use bfd_set_thin_archive.
gdb/
* gdb_bfd.c (gdb_bfd_ref, gdb_bfd_unref): Use bfd_set_usrdata.
* dwarf2read.c (dwarf2_read_gdb_index, dwarf2_read_debug_names),
(read_indirect_string_from_dwz): Use bfd accessor.
* dwarf2read.h (struct dwz_file <filename>): Likewise.
* machoread.c (macho_symfile_read_all_oso): Likewise.
* solib.c (solib_bfd_open): Likewise.
ld/
* ldelf.c (ldelf_after_open, ldelf_place_orphan
* ldlang.c (walk_wild_file, lang_process): Use bfd_usrdata.
(load_symbols, ldlang_add_file): Use bfd_set_usrdata.
* ldmain.c (add_archive_element): Use bfd_usrdata.
* ldlang.h (bfd_input_just_syms): New inline function.
* emultempl/aarch64elf.em (build_section_lists): Use it.
* emultempl/mmo.em (mmo_place_orphan): Likewise.
* emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
* emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
* emultempl/ppc64elf.em (build_section_lists): Likewise.
sim/
* ppc/emul_generic.c (emul_add_tree_options): Delete old bfd code.
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This large patch removes the unnecessary bfd parameter from various
bfd section macros and functions. The bfd is hardly ever used and if
needed for the bfd_set_section_* or bfd_rename_section functions can
be found via section->owner except for the com, und, abs, and ind
std_section special sections. Those sections shouldn't be modified
anyway.
The patch also removes various bfd_get_section_<field> macros,
replacing their use with bfd_section_<field>, and adds
bfd_set_section_lma. I've also fixed a minor bug in gas where
compressed section renaming was done directly rather than calling
bfd_rename_section. This would have broken bfd_get_section_by_name
and similar functions, but that hardly mattered at such a late stage
in gas processing.
bfd/
* bfd-in.h (bfd_get_section_name, bfd_get_section_vma),
(bfd_get_section_lma, bfd_get_section_alignment),
(bfd_get_section_size, bfd_get_section_flags),
(bfd_get_section_userdata): Delete.
(bfd_section_name, bfd_section_size, bfd_section_vma),
(bfd_section_lma, bfd_section_alignment): Lose bfd parameter.
(bfd_section_flags, bfd_section_userdata): New.
(bfd_is_com_section): Rename parameter.
* section.c (bfd_set_section_userdata, bfd_set_section_vma),
(bfd_set_section_alignment, bfd_set_section_flags, bfd_rename_section),
(bfd_set_section_size): Delete bfd parameter, rename section parameter.
(bfd_set_section_lma): New.
* bfd-in2.h: Regenerate.
* mach-o.c (bfd_mach_o_init_section_from_mach_o): Delete bfd param,
update callers.
* aoutx.h, * bfd.c, * coff-alpha.c, * coff-arm.c, * coff-mips.c,
* coff64-rs6000.c, * coffcode.h, * coffgen.c, * cofflink.c,
* compress.c, * ecoff.c, * elf-eh-frame.c, * elf-hppa.h,
* elf-ifunc.c, * elf-m10200.c, * elf-m10300.c, * elf-properties.c,
* elf-s390-common.c, * elf-vxworks.c, * elf.c, * elf32-arc.c,
* elf32-arm.c, * elf32-avr.c, * elf32-bfin.c, * elf32-cr16.c,
* elf32-cr16c.c, * elf32-cris.c, * elf32-crx.c, * elf32-csky.c,
* elf32-d10v.c, * elf32-epiphany.c, * elf32-fr30.c, * elf32-frv.c,
* elf32-ft32.c, * elf32-h8300.c, * elf32-hppa.c, * elf32-i386.c,
* elf32-ip2k.c, * elf32-iq2000.c, * elf32-lm32.c, * elf32-m32c.c,
* elf32-m32r.c, * elf32-m68hc1x.c, * elf32-m68k.c, * elf32-mcore.c,
* elf32-mep.c, * elf32-metag.c, * elf32-microblaze.c,
* elf32-moxie.c, * elf32-msp430.c, * elf32-mt.c, * elf32-nds32.c,
* elf32-nios2.c, * elf32-or1k.c, * elf32-ppc.c, * elf32-pru.c,
* elf32-rl78.c, * elf32-rx.c, * elf32-s390.c, * elf32-score.c,
* elf32-score7.c, * elf32-sh.c, * elf32-spu.c, * elf32-tic6x.c,
* elf32-tilepro.c, * elf32-v850.c, * elf32-vax.c, * elf32-visium.c,
* elf32-xstormy16.c, * elf32-xtensa.c, * elf64-alpha.c,
* elf64-bpf.c, * elf64-hppa.c, * elf64-ia64-vms.c, * elf64-mmix.c,
* elf64-ppc.c, * elf64-s390.c, * elf64-sparc.c, * elf64-x86-64.c,
* elflink.c, * elfnn-aarch64.c, * elfnn-ia64.c, * elfnn-riscv.c,
* elfxx-aarch64.c, * elfxx-mips.c, * elfxx-sparc.c,
* elfxx-tilegx.c, * elfxx-x86.c, * i386msdos.c, * linker.c,
* mach-o.c, * mmo.c, * opncls.c, * pdp11.c, * pei-x86_64.c,
* peicode.h, * reloc.c, * section.c, * syms.c, * vms-alpha.c,
* xcofflink.c: Update throughout for bfd section macro and function
changes.
binutils/
* addr2line.c, * bucomm.c, * coffgrok.c, * dlltool.c, * nm.c,
* objcopy.c, * objdump.c, * od-elf32_avr.c, * od-macho.c,
* od-xcoff.c, * prdbg.c, * rdcoff.c, * rddbg.c, * rescoff.c,
* resres.c, * size.c, * srconv.c, * strings.c, * windmc.c: Update
throughout for bfd section macro and function changes.
gas/
* as.c, * as.h, * dw2gencfi.c, * dwarf2dbg.c, * ecoff.c,
* read.c, * stabs.c, * subsegs.c, * subsegs.h, * write.c,
* config/obj-coff-seh.c, * config/obj-coff.c, * config/obj-ecoff.c,
* config/obj-elf.c, * config/obj-macho.c, * config/obj-som.c,
* config/tc-aarch64.c, * config/tc-alpha.c, * config/tc-arc.c,
* config/tc-arm.c, * config/tc-avr.c, * config/tc-bfin.c,
* config/tc-bpf.c, * config/tc-d10v.c, * config/tc-d30v.c,
* config/tc-epiphany.c, * config/tc-fr30.c, * config/tc-frv.c,
* config/tc-h8300.c, * config/tc-hppa.c, * config/tc-i386.c,
* config/tc-ia64.c, * config/tc-ip2k.c, * config/tc-iq2000.c,
* config/tc-lm32.c, * config/tc-m32c.c, * config/tc-m32r.c,
* config/tc-m68hc11.c, * config/tc-mep.c, * config/tc-microblaze.c,
* config/tc-mips.c, * config/tc-mmix.c, * config/tc-mn10200.c,
* config/tc-mn10300.c, * config/tc-msp430.c, * config/tc-mt.c,
* config/tc-nds32.c, * config/tc-or1k.c, * config/tc-ppc.c,
* config/tc-pru.c, * config/tc-rl78.c, * config/tc-rx.c,
* config/tc-s12z.c, * config/tc-s390.c, * config/tc-score.c,
* config/tc-score7.c, * config/tc-sh.c, * config/tc-sparc.c,
* config/tc-spu.c, * config/tc-tic4x.c, * config/tc-tic54x.c,
* config/tc-tic6x.c, * config/tc-tilegx.c, * config/tc-tilepro.c,
* config/tc-v850.c, * config/tc-visium.c, * config/tc-wasm32.c,
* config/tc-xc16x.c, * config/tc-xgate.c, * config/tc-xstormy16.c,
* config/tc-xtensa.c, * config/tc-z8k.c: Update throughout for
bfd section macro and function changes.
* write.c (compress_debug): Use bfd_rename_section.
gdb/
* aarch64-linux-tdep.c, * arm-tdep.c, * auto-load.c,
* coff-pe-read.c, * coffread.c, * corelow.c, * dbxread.c,
* dicos-tdep.c, * dwarf2-frame.c, * dwarf2read.c, * elfread.c,
* exec.c, * fbsd-tdep.c, * gcore.c, * gdb_bfd.c, * gdb_bfd.h,
* hppa-tdep.c, * i386-cygwin-tdep.c, * i386-fbsd-tdep.c,
* i386-linux-tdep.c, * jit.c, * linux-tdep.c, * machoread.c,
* maint.c, * mdebugread.c, * minidebug.c, * mips-linux-tdep.c,
* mips-sde-tdep.c, * mips-tdep.c, * mipsread.c, * nto-tdep.c,
* objfiles.c, * objfiles.h, * osabi.c, * ppc-linux-tdep.c,
* ppc64-tdep.c, * record-btrace.c, * record-full.c, * remote.c,
* rs6000-aix-tdep.c, * rs6000-tdep.c, * s390-linux-tdep.c,
* s390-tdep.c, * solib-aix.c, * solib-dsbt.c, * solib-frv.c,
* solib-spu.c, * solib-svr4.c, * solib-target.c,
* spu-linux-nat.c, * spu-tdep.c, * symfile-mem.c, * symfile.c,
* symmisc.c, * symtab.c, * target.c, * windows-nat.c,
* xcoffread.c, * cli/cli-dump.c, * compile/compile-object-load.c,
* mi/mi-interp.c: Update throughout for bfd section macro and
function changes.
* gcore (gcore_create_callback): Use bfd_set_section_lma.
* spu-tdep.c (spu_overlay_new_objfile): Likewise.
gprof/
* corefile.c, * symtab.c: Update throughout for bfd section
macro and function changes.
ld/
* ldcref.c, * ldctor.c, * ldelf.c, * ldlang.c, * pe-dll.c,
* emultempl/aarch64elf.em, * emultempl/aix.em,
* emultempl/armcoff.em, * emultempl/armelf.em,
* emultempl/cr16elf.em, * emultempl/cskyelf.em,
* emultempl/m68hc1xelf.em, * emultempl/m68kelf.em,
* emultempl/mipself.em, * emultempl/mmix-elfnmmo.em,
* emultempl/mmo.em, * emultempl/msp430.em,
* emultempl/nios2elf.em, * emultempl/pe.em, * emultempl/pep.em,
* emultempl/ppc64elf.em, * emultempl/xtensaelf.em: Update
throughout for bfd section macro and function changes.
libctf/
* ctf-open-bfd.c: Update throughout for bfd section macro changes.
opcodes/
* arc-ext.c: Update throughout for bfd section macro changes.
sim/
* common/sim-load.c, * common/sim-utils.c, * cris/sim-if.c,
* erc32/func.c, * lm32/sim-if.c, * m32c/load.c, * m32c/trace.c,
* m68hc11/interp.c, * ppc/hw_htab.c, * ppc/hw_init.c,
* rl78/load.c, * rl78/trace.c, * rx/gdb-if.c, * rx/load.c,
* rx/trace.c: Update throughout for bfd section macro changes.
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This is for add_setshow_boolean_cmd as well as the gdb::option interface.
gdb/ChangeLog:
2019-09-17 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_ignore_descriptive_types_p): Change to bool.
(print_signatures): Likewise.
(trust_pad_over_xvs): Likewise.
* arch/aarch64-insn.c (aarch64_debug): Likewise.
* arch/aarch64-insn.h (aarch64_debug): Likewise.
* arm-linux-nat.c (arm_apcs_32): Likewise.
* arm-linux-tdep.c (arm_apcs_32): Likewise.
* arm-nbsd-nat.c (arm_apcs_32): Likewise.
* arm-tdep.c (arm_debug): Likewise.
(arm_apcs_32): Likewise.
* auto-load.c (debug_auto_load): Likewise.
(auto_load_gdb_scripts): Likewise.
(global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* auto-load.h (global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* breakpoint.c (disconnected_dprintf): Likewise.
(breakpoint_proceeded): Likewise.
(automatic_hardware_breakpoints): Likewise.
(always_inserted_mode): Likewise.
(target_exact_watchpoints): Likewise.
(_initialize_breakpoint): Update.
* breakpoint.h (target_exact_watchpoints): Change to bool.
* btrace.c (maint_btrace_pt_skip_pad): Likewise.
* cli/cli-cmds.c (trace_commands): Likewise.
* cli/cli-cmds.h (trace_commands): Likewise.
* cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument
to bool*.
* cli/cli-logging.c (logging_overwrite): Change to bool.
(logging_redirect): Likewise.
(debug_redirect): Likewise.
* cli/cli-option.h (option_def) <boolean>: Change return type to bool*.
(struct boolean_option_def) <get_var_address_cb_>: Change return type
to bool.
<boolean_option_def>: Update.
(struct flag_option_def): Change default type of Context to bool
from int.
<flag_option_def>: Change return type of var_address_cb_ to bool*.
* cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*.
(get_setshow_command_value_string): Likewise.
* cli/cli-style.c (cli_styling): Change to bool.
(source_styling): Likewise.
* cli/cli-style.h (source_styling): Likewise.
(cli_styling): Likewise.
* cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change
to bool.
* command.h (var_types): Update comment.
(add_setshow_boolean_cmd): Change int* var argument to bool*.
* compile/compile-cplus-types.c (debug_compile_cplus_types): Change to
bool.
(debug_compile_cplus_scopes): Likewise.
* compile/compile-internal.h (compile_debug): Likewise.
* compile/compile.c (compile_debug): Likewise.
(struct compile_options) <raw>: Likewise.
* cp-support.c (catch_demangler_crashes): Likewise.
* cris-tdep.c (usr_cmd_cris_version_valid): Likewise.
(usr_cmd_cris_dwarf2_cfi): Likewise.
* csky-tdep.c (csky_debug): Likewise.
* darwin-nat.c (enable_mach_exceptions): Likewise.
* dcache.c (dcache_enabled_p): Likewise.
* defs.h (info_verbose): Likewise.
* demangle.c (demangle): Likewise.
(asm_demangle): Likewise.
* dwarf-index-cache.c (debug_index_cache): Likewise.
* dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2read.c (check_physname): Likewise.
(use_deprecated_index_sections): Likewise.
(dwarf_always_disassemble): Likewise.
* eval.c (overload_resolution): Likewise.
* event-top.c (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* event-top.h (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* exec.c (write_files): Likewise.
* fbsd-nat.c (debug_fbsd_lwp): Likewise
(debug_fbsd_nat): Likewise.
* frame.h (struct frame_print_options) <print_raw_frame_arguments>:
Likewise.
(struct set_backtrace_options) <backtrace_past_main>: Likewise.
<backtrace_past_entry> Likewise.
* gdb-demangle.h (demangle): Likewise.
(asm_demangle): Likewise.
* gdb_bfd.c (bfd_sharing): Likewise.
* gdbcore.h (write_files): Likewise.
* gdbsupport/common-debug.c (show_debug_regs): Likewise.
* gdbsupport/common-debug.h (show_debug_regs): Likewise.
* gdbthread.h (print_thread_events): Likewise.
* gdbtypes.c (opaque_type_resolution): Likewise.
(strict_type_checking): Likewise.
* gnu-nat.c (gnu_debug_flag): Likewise.
* guile/scm-auto-load.c (auto_load_guile_scripts): Likewise.
* guile/scm-param.c (pascm_variable): Add boolval.
(add_setshow_generic): Update.
(pascm_param_value): Update.
(pascm_set_param_value_x): Update.
* hppa-tdep.c (hppa_debug): Change to bool..
* infcall.c (may_call_functions_p): Likewise.
(coerce_float_to_double_p): Likewise.
(unwind_on_signal_p): Likewise.
(unwind_on_terminating_exception_p): Likewise.
* infcmd.c (startup_with_shell): Likewise.
* inferior.c (print_inferior_events): Likewise.
* inferior.h (startup_with_shell): Likewise.
(print_inferior_events): Likewise.
* infrun.c (step_stop_if_no_debug): Likewise.
(detach_fork): Likewise.
(debug_displaced): Likewise.
(disable_randomization): Likewise.
(non_stop): Likewise.
(non_stop_1): Likewise.
(observer_mode): Likewise.
(observer_mode_1): Likewise.
(set_observer_mode): Update.
(sched_multi): Change to bool.
* infrun.h (debug_displaced): Likewise.
(sched_multi): Likewise.
(step_stop_if_no_debug): Likewise.
(non_stop): Likewise.
(disable_randomization): Likewise.
* linux-tdep.c (use_coredump_filter): Likewise.
(dump_excluded_mappings): Likewise.
* linux-thread-db.c (auto_load_thread_db): Likewise.
(check_thread_db_on_load): Likewise.
* main.c (captured_main_1): Update.
* maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt,
xx2_opt, boolean_opt>: Change to bool.
* maint-test-settings.c (maintenance_test_settings_boolean): Likewise.
* maint.c (maintenance_profile_p): Likewise.
(per_command_time): Likewise.
(per_command_space): Likewise.
(per_command_symtab): Likewise.
* memattr.c (inaccessible_by_default): Likewise.
* mi/mi-main.c (mi_async): Likewise.
(mi_async_1): Likewise.
* mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise.
* nat/fork-inferior.h (startup_with_shell): Likewise.
* nat/linux-namespaces.c (debug_linux_namespaces): Likewise.
* nat/linux-namespaces.h (debug_linux_namespaces): Likewise.
* nios2-tdep.c (nios2_debug): Likewise.
* or1k-tdep.c (or1k_debug): Likewise.
* parse.c (parser_debug): Likewise.
* parser-defs.h (parser_debug): Likewise.
* printcmd.c (print_symbol_filename): Likewise.
* proc-api.c (procfs_trace): Likewise.
* python/py-auto-load.c (auto_load_python_scripts): Likewise.
* python/py-param.c (union parmpy_variable): Add "bool boolval" field.
(set_parameter_value): Update.
(add_setshow_generic): Update.
* python/py-value.c (copy_py_bool_obj): Change argument from int*
to bool*.
* python/python.c (gdbpy_parameter_value): Cast to bool* instead of
int*.
* ravenscar-thread.c (ravenscar_task_support): Change to bool.
* record-btrace.c (record_btrace_target::store_registers): Update.
* record-full.c (record_full_memory_query): Change to bool.
(record_full_stop_at_limit): Likewise.
* record-full.h (record_full_memory_query): Likewise.
* remote-notif.c (notif_debug): Likewise.
* remote-notif.h (notif_debug): Likewise.
* remote.c (use_range_stepping): Likewise.
(interrupt_on_connect): Likewise.
(remote_break): Likewise.
* ser-tcp.c (tcp_auto_retry): Likewise.
* ser-unix.c (serial_hwflow): Likewise.
* skip.c (debug_skip): Likewise.
* solib-aix.c (solib_aix_debug): Likewise.
* spu-tdep.c (spu_stop_on_load_p): Likewise.
(spu_auto_flush_cache_p): Likewise.
* stack.c (struct backtrace_cmd_options) <full, no_filters, hide>:
Likewise.
(struct info_print_options) <quiet>: Likewise.
* symfile-debug.c (debug_symfile): Likewise.
* symfile.c (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symfile.h (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symtab.c (basenames_may_differ): Likewise.
(struct filename_partial_match_opts) <dirname, basename>: Likewise.
(struct info_print_options) <quiet, exclude_minsyms>: Likewise.
(struct info_types_options) <quiet>: Likewise.
* symtab.h (demangle): Likewise.
(basenames_may_differ): Likewise.
* target-dcache.c (stack_cache_enabled_1): Likewise.
(code_cache_enabled_1): Likewise.
* target.c (trust_readonly): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
(auto_connect_native_target): Likewise.
(target_stop_and_wait): Update.
(target_async_permitted): Change to bool.
(target_async_permitted_1): Likewise.
(may_write_registers_1): Likewise.
(may_write_memory_1): Likewise.
(may_insert_breakpoints_1): Likewise.
(may_insert_tracepoints_1): Likewise.
(may_insert_fast_tracepoints_1): Likewise.
(may_stop_1): Likewise.
* target.h (target_async_permitted): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
* thread.c (struct info_threads_opts) <show_global_ids>: Likewise.
(make_thread_apply_all_options_def_group): Change argument from int*
to bool*.
(thread_apply_all_command): Update.
(print_thread_events): Change to bool.
* top.c (confirm): Likewise.
(command_editing_p): Likewise.
(history_expansion_p): Likewise.
(write_history_p): Likewise.
(info_verbose): Likewise.
* top.h (confirm): Likewise.
(history_expansion_p): Likewise.
* tracepoint.c (disconnected_tracing): Likewise.
(circular_trace_buffer): Likewise.
* typeprint.c (print_methods): Likewise.
(print_typedefs): Likewise.
* utils.c (debug_timestamp): Likewise.
(sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* utils.h (sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* valops.c (overload_resolution): Likewise.
* valprint.h (struct value_print_options) <prettyformat_arrays,
prettyformat_structs, vtblprint, unionprint, addressprint, objectprint,
stop_print_at_null, print_array_indexes, deref_ref, static_field_print,
pascal_static_field_print, raw, summary, symbol_print, finish_print>:
Likewise.
* windows-nat.c (new_console): Likewise.
(cygwin_exceptions): Likewise.
(new_group): Likewise.
(debug_exec): Likewise.
(debug_events): Likewise.
(debug_memory): Likewise.
(debug_exceptions): Likewise.
(useshell): Likewise.
* windows-tdep.c (maint_display_all_tib): Likewise.
* xml-support.c (debug_xml): Likewise.
|
|
This parameter is really a boolean, so change the type accordingly
and update the callers.
This is for symbol_set_names, add_psymbol_to_bcache, and
add_psymbol_to_list.
minimal_symbol_reader::record_full was already passing a bool
to symbol_set_names.
gdb/ChangeLog:
2019-09-11 Christian Biesinger <cbiesinger@google.com>
* dbxread.c (read_dbx_symtab): Update.
* dwarf2read.c (load_partial_dies): Update.
* mdebugread.c (parse_partial_symbols): Update.
(handle_psymbol_enumerators): Update.
* psympriv.h (add_psymbol_to_list): Change type of copy_names to bool.
* psymtab.c (add_psymbol_to_bcache): Likewise.
(add_psymbol_to_list): Likewise.
* symtab.c (symbol_set_names): Likewise.
* symtab.h (symbol_set_names): Likewise.
* xcoffread.c (scan_xcoff_symtab): Update.
|
|
This patch adds support for Ada to .debug_names. I opted to leave
.gdb_index alone, because in my view it is a defunct format.
gdb/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* dwarf-index-write.c (write_psymbols): Extend error message.
(debug_names::insert): Add Ada code.
(debug_names::write_psymbols): Remove Ada check.
(debug_names) <m_string_obstack>: New member.
* dwarf2read.c (gdb_index_symbol_name_matcher): Remove.
(gdb_index_symbol_name_matcher::matches): Remove.
(mapped_index_base::find_name_components_bounds): Add "lang"
parameter.
(mapped_index_base::build_name_components): Also split names
according to Ada syntax.
(dw2_expand_symtabs_matching_symbol): Loop over languages. Change
type of "match_callback".
(check_match, check_find_bounds_finds)
(dw2_expand_symtabs_matching): Update.
(dw2_debug_names_iterator): Add new constructor.
(dw2_debug_names_map_matching_symbols): New function.
(dw2_debug_names_expand_symtabs_matching): Update.
(dwarf2_debug_names_functions): Use
dw2_debug_names_map_matching_symbols.
|
|
An internal Ada test case showed that the .debug_names code does not
compute the same list of file names as the partial symbol reader. In
particular, the partial symbol reader uses the DW_AT_name of the CU:
/* Allocate a new partial symbol table structure. */
filename = dwarf2_string_attr (comp_unit_die, DW_AT_name, cu);
if (filename == NULL)
filename = "";
pst = create_partial_symtab (per_cu, filename);
This patch changes the .debug_names reader to follow.
gdb/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* dwarf2read.c (dw2_get_file_names_reader): Add the
CU's file name to the results.
gdb/testsuite/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* gdb.ada/dgopt.exp: New file.
* gdb.ada/dgopt/x.adb: New file.
|
|
This patch further simplifies the map_matching_symbols callback, by
having it take a lookup_name_info rather than a plain string.
gdb/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* ada-lang.c (add_nonlocal_symbols): Combine calls to
map_matching_symbols. Update.
* dwarf2read.c (dw2_map_matching_symbols): Update.
* psymtab.c (match_partial_symbol): Change type; update.
(psym_map_matching_symbols): Likewise.
* symfile-debug.c (debug_qf_map_matching_symbols): Change
type; update.
* symfile.h (struct quick_symbol_functions)
<map_matching_symbols>: Change "name" to be a lookup_name_info.
Remove "match".
|
|
This changes map_matching_symbols to take a
symbol_found_callback_ftype, rather than separate callback and data
parameters. This enables a future patch to clean up some existing
code so that it can more readily be shared.
gdb/ChangeLog
2019-09-10 Tom Tromey <tromey@adacore.com>
* ada-lang.c (aux_add_nonlocal_symbols): Change type.
(add_nonlocal_symbols): Update.
* dwarf2read.c (dw2_map_matching_symbols): Change type.
* psymtab.c (map_block, psym_map_matching_symbols): Change type.
* symfile-debug.c (debug_qf_map_matching_symbols): Change type.
* symfile.h (struct quick_symbol_functions) <map_matching_symbols>:
Change type of "callback". Remove "data".
|
|
* DW_UT_skeleton and DW_UT_split_compile compilation units have dwo ids
to match the compilation unit in the skeleton and .dwo files. The dwo_id is
in the header.
Tested with CC=/usr/bin/gcc (version 8.3.0) against master branch (also with
-gsplit-dwarf and -gdwarf-4 flags) and there was no increase in the set of
tests that fails.
This is part of an effort to support DWARF 5 in gdb.
gdb/ChangeLog:
* dwarf2read.c (comp_unit_head): Update comment.
(dwarf2_dwo_name): New function declaration.
(dwarf_unit_type_name): New function declaration.
(read_comp_unit_head): Add support for new compilation units,
DW_UT_partial, DW_UT_skeleton, DW_UT_split_compile, DW_UT_split_type.
Particularly, DW_UT_skeleton and DW_UT_split_compile have dwo_id
(currently named as "signature") in their header. Also clarify error
messages.
(lookup_dwo_id): New function. Returns the dwo id of the given
compile unit.
(lookup_dwo_unit): Use the new lookup_dwo_id function.
(init_cutu_and_read_dies): Use the new dwarf2_dwo_name and lookup_dwo_id
functions.
(create_dwo_cu_reader): Use the added lookup_dwo_id function.
(dwarf2_dwo_name): Get the dwo name if present.
(dwarf_unit_type_name): Convert DW_UT_* types to string for diagnostic
purposes.
|
|
The only two values valid to pass to the block_index parameter of
quick_symbol_functions::lookup_symbol are GLOBAL_BLOCK and STATIC_BLOCK,
part of enum block_enum. Change the type of that parameter to
block_enum.
Change also the block_index field of dw2_symtab_iterator in the same
way.. This makes it consistent with dw2_debug_names_iterator, which
already uses block_enum for its block_index field.
This is a follow-up to this thread:
https://sourceware.org/ml/gdb-patches/2019-08/msg00097.html
gdb/ChangeLog:
* dwarf2read.c (struct dw2_symtab_iterator) <block_index>:
Change type to gdb::optional<block_enum>.
(dw2_symtab_iter_init): Change block_index parameter type
to gdb::optional<block_enum>.
(dw2_lookup_symbol): Change block_index parameter
type to block_enum.c
(dw2_debug_names_lookup_symbol): Likewise.
* psymtab.c (psym_lookup_symbol): Likewise.
* symfile-debug.c (debug_qf_lookup_symbol): Likewise.
* symfile.h (struct quick_symbol_functions) <lookup_symbol>:
Likewise.
|
|
In Ada, the programmer can request that a range type with a non-zero
base be stored in the minimal number of bits required for the range.
This is done by biasing the values; so, for example, a range of -7..-4
may be stored as two bits with a bias of -7.
This patch implements this for gdb. It is done by adding a bias to
struct range_bounds and then adjusting a few spots to handle this.
The test case is written to use -fgnat-encodings=minimal, but a future
compiler patch will change the compiler to emit DW_AT_GNU_bias with
-fgnat-encodings=gdb. It seemed good to get the gdb patch in first.
Tested on x86-64 Fedora 29; plus a variety of targets using AdaCore's
internal test suite.
gdb/ChangeLog
2019-09-03 Tom Tromey <tromey@adacore.com>
* ada-valprint.c (ada_val_print_num): Don't recurse for range
types.
(has_negatives): Unbias a range type bound.
* dwarf2read.c (read_subrange_type): Handle DW_AT_GNU_bias.
* gdbtypes.c (operator==): Handle new field.
(create_range_type): Add "bias" parameter.
(create_static_range_type, resolve_dynamic_range): Update.
* gdbtypes.h (struct range_bounds) <bias>: New member.
(create_range_type): Add bias parameter.
* printcmd.c (print_scalar_formatted): Unbias range types.
* value.c (unpack_long): Unbias range types.
(pack_long): Bias range types.
gdb/testsuite/ChangeLog
2019-09-03 Tom Tromey <tromey@adacore.com>
* gdb.ada/bias.exp: New file.
* gdb.ada/bias/bias.adb: New file.
* gdb.ada/print_chars.exp: Add regression test.
* gdb.ada/print_chars/foo.adb (My_Character): New type.
(MC): New variable.
|
|
gcc 4.8 (and probably other versions too) doesn't like that the local
variable symbol_linkage has the same name as the enum class defined in
the same context:
CXX dwarf2read.o
/home/smarchi/src/binutils-gdb/gdb/dwarf2read.c: In member function ‘dwarf2_per_cu_data* dw2_debug_names_iterator::next()’:
/home/smarchi/src/binutils-gdb/gdb/dwarf2read.c:5850:22: error: ‘symbol_linkage’ is not a class, namespace, or enumeration
} symbol_linkage = symbol_linkage::unknown;
^
Rename the local variable to avoid this.
This problem was originally reported with the Netbsd builder on the
buildbot, which uses gcc 5.5, I believe. I am not able to test it on
that builder right now, but chances are that the fix will work there
too.
gdb/ChangeLog:
* dwarf2read.c (dw2_debug_names_iterator::next): Rename local
variable symbol_linkage to symbol_linkage_.
|
|
gdb::optional<bool> is dangerous, because it's easy to do:
if (opt_bool)
when you actually meant
if (*opt_bool)
or vice-versa. The first checks if the optional is set, the second
checks if the wrapped bool is true.
Replace it with an enum that explicitly defines the three possible
states.
gdb/ChangeLog:
* dwarf2read.c (dw2_debug_names_iterator::next): Use enum to
represent whether the symbol is static, dynamic, or we don't
know.
|
|
With target board unix/-fPIE/-pie, we get:
...
FAIL: gdb.dwarf2/varval.exp: print varval2
...
This is due comparing a get_frame_pc result (which includes the for PIE
non-zero relocation offset) with pc_high and pc_low obtained using
get_scope_pc_bounds (which do not include the relocation offset).
Fix this by adjusting pc_high and pc_low with the relocation offset.
Tested on x86_64-linux with target board unix/-fPIE/-pie.
gdb/ChangeLog:
2019-08-09 Tom de Vries <tdevries@suse.de>
PR gdb/24591
* dwarf2read.c (dwarf2_fetch_die_loc_sect_off): Adjust pc_high and
pc_low with relocation offset.
|
|
This introduces obstack_strndup and changes gdb to use it.
Note that obstack_strndup works like savestring, and not exactly like
xstrndup. The difference is that obstack_strndup uses the passed-in
length, while xstrndup uses strnlen to choose the length.
gdb/ChangeLog
2019-08-06 Tom Tromey <tom@tromey.com>
* stabsread.c (patch_block_stabs, read_one_struct_field)
(read_enum_type): Use obstack_strndup.
* rust-exp.y (rust_parser::copy_name): Use obstack_strndup.
* gdb_obstack.h (obstack_strndup): Use obstack_strndup.
* dwarf2read.c (guess_full_die_structure_name)
(anonymous_struct_prefix): Use obstack_strndup.
* dbxread.c (cp_set_block_scope): Use obstack_strndup.
* c-exp.y (yylex): Use obstack_strndup.
* ada-exp.y (write_object_renaming, write_ambiguous_var)
(write_var_or_type): Use obstack_strndup.
|
|
This adds an obstack_strdup overload that takes a std::string, and
changes a few spots in gdb to use it.
gdb/ChangeLog
2019-08-06 Tom Tromey <tom@tromey.com>
* symfile.c (reread_symbols): Use obstack_strdup.
* stabsread.c (read_type): Use obstack_strdup.
* gdb_obstack.h (obstack_strdup): New overload.
* dwarf2read.c (dwarf2_compute_name, create_dwo_unit_in_dwp_v1)
(create_dwo_unit_in_dwp_v2, build_error_marker_type)
(dwarf2_canonicalize_name): Use obstack_strdup.
* dbxread.c (read_dbx_symtab): Use obstack_strdup.
* cp-support.c (inspect_type, replace_typedefs_qualified_name):
Use obstack_strdup.
|
|
This changes gdb to use obstack_strdup when appropriate, rather than
the wordier obstack_copy0.
gdb/ChangeLog
2019-08-06 Tom Tromey <tom@tromey.com>
* xcoffread.c (SYMNAME_ALLOC, process_xcoff_symbol): Use
obstack_strdup.
* typeprint.c (typedef_hash_table::find_global_typedef): Use
obstack_strdup.
* symfile.c (allocate_compunit_symtab): Use obstack_strdup.
* stabsread.c (common_block_start): Use obstack_strdup.
* objfiles.c (set_objfile_main_name, objfile): Use
obstack_strdup.
* namespace.c (add_using_directive): Use obstack_strdup.
* mdebugread.c (parse_symbol, parse_type): Use obstack_strdup.
* jit.c (finalize_symtab): Use obstack_strdup.
* dwarf2read.c (fixup_go_packaging, dwarf2_physname)
(guess_partial_die_structure_name, partial_die_info::fixup)
(dwarf2_name): Use obstack_strdup.
* coffread.c (coff_read_struct_type, coff_read_enum_type): Use
obstack_strdup.
* c-exp.y (scan_macro_expansion): Use obstack_strdup.
* buildsym.c (buildsym_compunit::end_symtab_with_blockvector): Use
obstack_strdup.
* ada-lang.c (ada_decode_symbol): Use obstack_strdup.
|
|
With this patch, the help docs now respect 2 invariants:
* The first line of a command help is terminated by a '.' character.
* The last character of a command help is not a newline character.
Note that the changes for the last invariant were done by Tom, as part of :
[PATCH] Remove trailing newlines from help text
https://sourceware.org/ml/gdb-patches/2019-06/msg00050.html
but some occurrences have been re-introduced since then.
Some help docs had to be rephrased/restructured to respect the above
invariants.
Before this patch, print_doc_line was printing the first line
of a command help documentation, but stopping at the first '.'
or ',' character.
This was giving inconsistent results :
* The first line of command helps was sometimes '.' terminated,
sometimes not.
* The first line of command helps was not always designed to be
readable/understandable/unambiguous when stopping at the first
'.' or ',' character.
This e.g. created the following inconsistencies/problems:
< catch exception -- Catch Ada exceptions
< catch handlers -- Catch Ada exceptions
< catch syscall -- Catch system calls by their names
< down-silently -- Same as the `down' command
while the new help is:
> catch exception -- Catch Ada exceptions, when raised.
> catch handlers -- Catch Ada exceptions, when handled.
> catch syscall -- Catch system calls by their names, groups and/or numbers.
> down-silently -- Same as the `down' command, but does not print anything.
Also, the command help doc should not be terminated by a newline
character, but this was not respected by all commands.
The cli-option -OPT framework re-introduced some occurences.
So, the -OPT build help framework was changed to not output newlines at the
end of %OPTIONS% replacement.
This patch changes the help documentations to ensure the 2 invariants
given above.
It implied to slightly rephrase or restructure some help docs.
Based on the above invariants, print_doc_line (called by
'apropos' and 'help' commands to print the first line of a command
help) now outputs the full first line of a command help.
This all results in a lot of small changes in the produced help docs.
There are less code changes than changes in the help docs, as a lot
of docs are produced by some code (e.g. the remote packet usage settings).
gdb/ChangeLog
2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* cli/cli-decode.h (print_doc_line): Add for_value_prefix argument.
* cli/cli-decode.c (print_doc_line): Likewise. It now prints
the full first line, except when FOR_VALUE_PREFIX. In this case,
the trailing '.' is not output, and the first character is uppercased.
(print_help_for_command): Update call to print_doc_line.
(print_doc_of_command): Likewise.
* cli/cli-setshow.c (deprecated_show_value_hack): Likewise.
* cli/cli-option.c (append_indented_doc): Do not append newline.
(build_help_option): Append newline after first appended_indented_doc
only if a second call is done.
(build_help): Append 2 new lines before each option, except the first
one.
* compile/compile.c (_initialize_compile): Add new lines after
%OPTIONS%, when not at the end of the help.
Change help doc or code
producing the help doc to respect the invariants.
* maint-test-options.c (_initialize_maint_test_options): Likewise.
Also removed the new line after 'Options:', as all other commands
do not put an empty line between 'Options:' and the first option.
* printcmd.c (_initialize_printcmd): Likewise.
* stack.c (_initialize_stack): Likewise.
* interps.c (interpreter_exec_cmd): Fix "Usage:" line that was
incorrectly telling COMMAND is optional.
* ada-lang.c (_initialize_ada_language): Change help doc or code
producing the help doc to respect the invariants.
* ada-tasks.c (_initialize_ada_tasks): Likewise.
* breakpoint.c (_initialize_breakpoint): Likewise.
* cli/cli-cmds.c (_initialize_cli_cmds): Likewise.
* cli/cli-logging.c (_initialize_cli_logging): Likewise.
* cli/cli-setshow.c (_initialize_cli_setshow): Likewise.
* cli/cli-style.c (cli_style_option::add_setshow_commands,
_initialize_cli_style): Likewise.
* corelow.c (core_target_info): Likewise.
* dwarf-index-cache.c (_initialize_index_cache): Likewise.
* dwarf2read.c (_initialize_dwarf2_read): Likewise.
* filesystem.c (_initialize_filesystem): Likewise.
* frame.c (_initialize_frame): Likewise.
* gnu-nat.c (add_task_commands): Likewise.
* infcall.c (_initialize_infcall): Likewise.
* infcmd.c (_initialize_infcmd): Likewise.
* interps.c (_initialize_interpreter): Likewise.
* language.c (_initialize_language): Likewise.
* linux-fork.c (_initialize_linux_fork): Likewise.
* maint-test-settings.c (_initialize_maint_test_settings): Likewise.
* maint.c (_initialize_maint_cmds): Likewise.
* memattr.c (_initialize_mem): Likewise.
* printcmd.c (_initialize_printcmd): Likewise.
* python/lib/gdb/function/strfns.py (_MemEq, _StrLen, _StrEq,
_RegEx): Likewise.
* ravenscar-thread.c (_initialize_ravenscar): Likewise.
* record-btrace.c (_initialize_record_btrace): Likewise.
* record-full.c (_initialize_record_full): Likewise.
* record.c (_initialize_record): Likewise.
* regcache-dump.c (_initialize_regcache_dump): Likewise.
* regcache.c (_initialize_regcache): Likewise.
* remote.c (add_packet_config_cmd, init_remote_threadtests,
_initialize_remote): Likewise.
* ser-tcp.c (_initialize_ser_tcp): Likewise.
* serial.c (_initialize_serial): Likewise.
* skip.c (_initialize_step_skip): Likewise.
* source.c (_initialize_source): Likewise.
* stack.c (_initialize_stack): Likewise.
* symfile.c (_initialize_symfile): Likewise.
* symtab.c (_initialize_symtab): Likewise.
* target-descriptions.c (_initialize_target_descriptions): Likewise.
* top.c (init_main): Likewise.
* tracefile-tfile.c (tfile_target_info): Likewise.
* tracepoint.c (_initialize_tracepoint): Likewise.
* tui/tui-win.c (_initialize_tui_win): Likewise.
* utils.c (add_internal_problem_command): Likewise.
* valprint.c (value_print_option_defs): Likewise.
gdb/testsuite/ChangeLog
2019-08-07 Philippe Waroquiers <philippe.waroquiers@skynet.be>
* gdb.base/style.exp: Update tests for help doc new invariants.
* gdb.base/help.exp: Likewise.
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While reading that code, I noticed that some variables essentially meant
whether to consider some other variable or not. I think using
gdb::optional (which was not available when this code was written) is
clearer, as it embeds the used/not used predicate directly in the type
of the variable, making it harder to miss.
gdb/ChangeLog:
* dwarf2read.c (struct dw2_symtab_iterator):
<want_specific_block>: Remove.
<block_index>: Change type to gdb::optional.
(dw2_symtab_iter_init): Remove WANT_SPECIFIC_BLOCK parameter,
change type of BLOCK_INDEX parameter to gdb::optional.
(dw2_symtab_iter_next): Re-write in function of gdb::optional.
(dw2_lookup_symbol): Don't pass argument for
WANT_SPECIFIC_BLOCK.
(dw2_expand_symtabs_for_function): Don't pass argument for
WANT_SPECIFIC_BLOCK, pass empty optional for BLOCK_INDEX.
(class dw2_debug_names_iterator)
<dw2_debug_names_iterator>: Remove WANT_SPECIFIC_BLOCK
parameter, change BLOCK_INDEX type to gdb::optional.
<m_want_specific_block>: Remove.
<m_block_index>: Change type to gdb::optional.
(dw2_debug_names_iterator::next): Change type of IS_STATIC to
gdb::optional. Re-write in function of gdb::optional.
(dw2_debug_names_lookup_symbol): Don't pass argument for
WANT_SPECIFIC_BLOCK.
(dw2_debug_names_expand_symtabs_for_function): Don't pass
argument for WANT_SPECIFIC_BLOCK, pass empty optional for
BLOCK_INDEX.
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