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gdb/ChangeLog:
Update year range in copyright notice of all files.
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gdb/ChangeLog:
* dwarf2expr.h (struct dwarf_expr_context_funcs): Uncomment
field "get_object_address".
* dwarf2expr.c (execute_stack_op): Add handling for
DW_OP_push_object_address.
* dwarf2loc.h (dwarf2_evaluate_property): Add "address" field.
* dwarf2loc.c (struct dwarf_expr_baton): Add field "obj_address".
(dwarf_expr_push_dwarf_reg_entry_value): Set baton_local.obj_address.
(dwarf_expr_get_obj_addr): New function.
(dwarf_expr_ctx_funcs): Add get_object_address field.
(dwarf2_evaluate_loc_desc_full): Set baton.obj_address.
(dwarf2_locexpr_baton_eval): Add parameter "addr". Use it.
(dwarf2_evaluate_property): Add parameter "address". Use it.
(needs_get_obj_addr): New function.
(needs_frame_ctx_funcs): Add get_object_address field.
(dwarf2_compile_expr_to_ax): Add DW_OP_push_object_address handling.
* gdbtypes.c (resolve_dynamic_range): Add "addr" field. Use it.
(resolve_dynamic_array): Likewise.
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This is to help make it slightly clearer how this method is expected
to extract data from the given register.
gdb/ChangeLog:
* dwarf2expr.h (struct dwarf_expr_context_funcs)
<read_addr_from_reg>: Renames "read_reg".
* dwarf2-frame.c (read_addr_from_reg): Renames "read_reg".
Adjust comment.
(dwarf2_frame_ctx_funcs, execute_stack_op, dwarf2_frame_cache):
Use read_addr_from_reg in place of read_reg.
* dwarf2expr.c (execute_stack_op): Use read_addr_from_reg
in place of read_reg.
* dwarf2loc.c (dwarf_expr_read_addr_from_reg): Renames
dwarf_expr_read_reg.
(dwarf_expr_ctx_funcs): Replace dwarf_expr_read_reg
with dwarf_expr_read_addr_from_reg.
(needs_frame_read_addr_from_reg): Renames needs_frame_read_reg.
(needs_frame_ctx_funcs): Replace needs_frame_read_reg with
needs_frame_read_addr_from_reg.
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Consider the following code, compiled at -O2 on ppc-linux:
procedure Increment (Val : in out Float; Msg : String);
The implementation does not really matter in this case). In our example,
this function is being called from a function with Param_1 set to 99.0.
Trying to break inside that function, and running until reaching that
breakpoint yields:
(gdb) b increment
Breakpoint 1 at 0x100014b4: file callee.adb, line 6.
(gdb) run
Starting program: /[...]/foo
Breakpoint 1, callee.increment (val=99.0, val@entry=0.0, msg=...)
at callee.adb:6
6 if Val > 200.0 then
The @entry value for parameter "val" is incorrect, it should be 99.0.
The associated call-site parameter DIE looks like this:
.uleb128 0xc # (DIE (0x115) DW_TAG_GNU_call_site_parameter)
.byte 0x2 # DW_AT_location
.byte 0x90 # DW_OP_regx
.uleb128 0x21
.byte 0x3 # DW_AT_GNU_call_site_value
.byte 0xf5 # DW_OP_GNU_regval_type
.uleb128 0x3f
.uleb128 0x25
The DW_AT_GNU_call_site_value uses a DW_OP_GNU_regval_type
operation, referencing register 0x3f=63, which is $f31,
an 8-byte floating register. In that register, the value is
stored using the usual 8-byte float format:
(gdb) info float
f31 99.0 (raw 0x4058c00000000000)
The current code evaluating DW_OP_GNU_regval_type operations
currently is (dwarf2expr.c:execute_stack_op):
result = (ctx->funcs->read_reg) (ctx->baton, reg);
result_val = value_from_ulongest (address_type, result);
result_val = value_from_contents (type,
value_contents_all (result_val));
What the ctx->funcs->read_reg function does is read the contents
of the register as if it contained an address. The rest of the code
continues that assumption, thinking it's OK to then use that to
create an address/ulongest struct value, which we then re-type
to the type specified by DW_OP_GNU_regval_type.
We're getting 0.0 above because the read_reg implementations
end up treating the contents of the FP register as an integral,
reading only 4 out of the 8 bytes. Being a big-endian target,
we read the high-order ones, which gives us zero.
This patch fixes the problem by introducing a new callback to
read the contents of a register as a given type, and then adjust
the handling of DW_OP_GNU_regval_type to use that new callback.
gdb/ChangeLog:
* dwarf2expr.h (struct dwarf_expr_context_funcs) <read_reg>:
Extend the documentation a bit.
<get_reg_value>: New field.
* dwarf2loc.c (dwarf_expr_get_reg_value)
(needs_frame_get_reg_value): New functions.
(dwarf_expr_ctx_funcs, needs_frame_ctx_funcs): Add "get_reg_value"
callback.
* dwarf2-frame.c (get_reg_value): New function.
(dwarf2_frame_ctx_funcs): Add "get_reg_value" callback.
* dwarf2expr.c (execute_stack_op) <DW_OP_GNU_regval_type>:
Use new callback to compute result_val.
gdb/testsuite/ChangeLog:
* gdb.ada/O2_float_param: New testcase.
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Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
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(dwarf2_fetch_die_loc_cu_off): Rename from
dwarf2_fetch_die_location_block. Rewrite to use
dwarf2_fetch_die_loc_sect_off.
* dwarf2loc.h (dwarf2_fetch_die_loc_sect_off): Declare.
(dwarf2_fetch_die_loc_cu_off): Rename.
* dwarf2loc.c (indirect_pieced_value): Use
dwarf2_fetch_die_loc_sect_off.
* dwarf2expr.h (struct dwarf_expr_context) <len, data>: Update
comment.
(struct dwarf_expr_piece) <v.ptr.die>: Now a sect_offset.
* dwarf2expr.c (add_piece): Update.
(execute_stack_op) <DW_OP_GNU_implicit_pointer>: Update comment.
testsuite
* gdb.dwarf2/implptr-64bit.exp: Run tests with two CUs as well.
(test): Add "two_cu" argument.
* gdb.dwarf2/implptr-64bit.S: Move subprogram later; use ref_addr
for types; allow two CUs.
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Fix 'warning: parameter has incomplete type' with gcc-3.4.6.
* dwarf2expr.h: Include gdbtypes.h.
(enum call_site_parameter_kind, union call_site_parameter_u): Remove
these forward declarations.
(cu_offset, sect_offset): Move these ...
* gdbtypes.h: Remove include dwarf2expr.h.
(cu_offset, sect_offset): ... here.
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Adjust address for DW_OP_GNU_addr_index.
* dwarf2expr.h (dwarf_expr_context): Update comment.
* dwarf2loc.c (locexpr_describe_location_piece): New arg per_cu,
all callers updated. Handle TLS vars described with
DW_OP_GNU_const_index.
(disassemble_dwarf_expression): Handle DW_OP_GNU_addr_index
and DW_OP_GNU_const_index.
* dwarf2read.c (decode_locdesc): Handle DW_OP_GNU_addr_index.
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Code cleanup: Generalize call_site.parameter key.
* dwarf2expr.c (execute_stack_op) <DW_OP_GNU_entry_value>: Remove
variable dwarf_reg. New variable kind_u. Update parameters to
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value): Update parameters.
* dwarf2expr.h (enum call_site_parameter_kind)
(union call_site_parameter_u): Forward declarations.
(struct dwarf_expr_context_funcs): Update parameters and their
description for push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value): Update parameters.
* dwarf2loc.c (call_site_parameter_matches): New function.
(dwarf_expr_reg_to_entry_parameter): Update parameters and their
description. Use call_site_parameter_matches.
(dwarf_expr_push_dwarf_reg_entry_value, value_of_dwarf_reg_entry):
Update parameters and their description.
(value_of_dwarf_block_entry): Remove variables dwarf_reg and fb_offset.
New variable kind_u. Adjust the caller for updated parameters.
(needs_dwarf_reg_entry_value): Update parameters.
* dwarf2read.c (read_call_site_scope): New variable loc. Use it
instead of attr. Update for the changed fields of struct
call_site_parameter.
* gdbtypes.h: Include dwarf2expr.h.
(enum call_site_parameter_kind): New.
(struct call_site.parameter): New field kind. Wrap dwarf_reg and
fb_offset into new union u.
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int64_t change to leb128 API.
(read_encoded_value, decode_frame_entry_1): Ditto.
* dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Ditto.
(dwarf_block_to_dwarf_reg, dwarf_block_to_dwarf_reg_deref): Ditto.
(dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto.
(execute_stack_op): Ditto.
* dwarf2expr.h (gdb_read_uleb128, gdb_read_sleb128): Ditto.
(safe_read_uleb128, safe_read_sleb128): Ditto.
* dwarf2loc.c (decode_debug_loc_dwo_addresses): Ditto.
(dwarf2_compile_expr_to_ax): Ditto.
(locexpr_describe_location_piece): Ditto.
(disassemble_dwarf_expression): Ditto.
(locexpr_describe_location_1): Ditto.
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"const gdb_byte *".
(struct dwarf2_fde): Make instructions, end "const gdb_byte *".
(execute_cfa_program): Update to match API of leb128 functions.
(read_1_byte, read_4_bytes, read_8_bytes): Make buf parameter
"const gdb_byte *".
(read_unsigned_leb128, read_signed_leb128): Delete.
(read_initial_length): Change type of buf argument to
"const gdb_byte *".
(read_encoded_value): Update to match API of leb128 functions.
(decode_frame_entry): Change result to "const gdb_byte *", and
similarly for "start" parameter.
(decode_frame_entry_1): Ditto. Use new leb128 reader functions.
(dwarf2_build_frame_info): Change local frame_ptr to
"const gdb_byte *".
* dwarf2expr.c (safe_read_uleb128, safe_read_sleb128): Replaces
read_uleb128, read_sleb128. All callers updated.
(safe_skip_leb128): New function.
(dwarf_block_to_dwarf_reg): Update to match API of leb128 functions.
Call gdb_read_uleb128, gdb_skip_leb128 instead of read_uleb128.
(dwarf_block_to_dwarf_reg_deref): Update to match API of leb128
functions. Call gdb_read_uleb128, gdb_read_sleb128 instead of
read_uleb128, read_sleb128.
(dwarf_block_to_fb_offset, dwarf_block_to_sp_offset): Ditto.
(execute_stack_op): Update to match API of leb128 functions.
* dwarf2expr.h: #include "leb128.h".
(read_uleb128, read_sleb128): Delete.
(gdb_read_uleb128, gdb_read_sleb128, gdb_skip_leb128): New functions.
(safe_read_uleb128, safe_read_sleb128, safe_skip_leb128): Declare.
* dwarf2loc.c (debug_loc_kind): New enum.
(decode_debug_loc_addresses): New function.
(decode_debug_loc_dwo_addresses): New function.
(dwarf2_find_location_expression): Rewrite.
(dwarf2_compile_expr_to_ax): Update to match API of leb128 functions.
(locexpr_describe_location_piece): Ditto.
(disassemble_dwarf_expression): Ditto.
(locexpr_describe_location_1): Ditto.
(loclist_describe_location): Rewrite.
* dwarf2loc.h (dwarf2_loclist_baton): New member "from_dwo".
* dwarf2read.c (die_reader_specs): New member "buffer_end".
(dwarf2_section_buffer_overflow_complaint): Renamed from
dwarf2_macros_too_long_complaint. All callers updated.
(skip_leb128): Delete.
(init_cu_die_reader): Initialize reader->buffer_end.
(skip_one_die): Replace call to skip_leb128 with safe_skip_leb128.
(skip_form_bytes): New arg buffer_end. All callers updated.
Replace call to skip_leb128 with gdb_skip_leb128.
(skip_unknown_opcode): New arg mac_end. All callers updated.
(fill_in_loclist_baton): Initialize baton->from_dwo.
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get_DW_TAG_name.
(dwarf_attr_name): Return const char *. Use get_DW_AT_name.
(dwarf_form_name): Return const char *. Use get_DW_FORM_name.
(dwarf_stack_op_name): Remove.
(dwarf_cfi_name): Return const char *. Use get_DW_ATE_name.
(decode_locdesc): Use get_DW_OP_name.
* dwarf2loc.c (unimplemented): Use get_DW_OP_name.
(dwarf2_compile_expr_to_ax): Likewise.
(disassemble_dwarf_expression): Likewise.
* dwarf2expr.h: (dwarf_stack_op_name): Remove.
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* symfile.c (default_symfile_relocate): Use sectp->owner instead of
objfile->obfd.
* symfile.h (dwarf2_debug_sections): New member addr.
* dwarf2expr.c (execute_stack_op): New case DW_OP_GNU_addr_index.
(ctx_no_get_addr_index): New function.
* dwarf2expr.h (dwarf_expr_context_funcs): New member get_addr_index.
(ctx_no_get_addr_index): Declare.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Update.
* dwarf2loc.c (dwarf_expr_get_addr_index): New function.
(dwarf_expr_ctx_funcs): Update.
(needs_get_addr_index): New function.
(needs_frame_ctx_funcs): Update.
* dwarf2loc.h (dwarf2_read_addr_index): Declare.
* dwarf2read.c: #include "gdbcore.h".
(dwarf2_per_objfile): New members addr, dwo_files.
(dwarf2_elf_names): Add entry for addr.
(struct dwo_section_names): New type.
(dwo_section_names): New static global.
(dwarf2_cu): New members dwo_unit, addr_base, have_addr_base.
(dwarf2_per_cu_data): New member is_debug_types, all boolean uses of
old debug_types_section member updated to use this.
Rename member debug_types_section to info_or_types_section,
all uses updated.
(signatured_type): Rename member type_offset to type_offset_in_tu,
all uses updated. New member type_offset_in_section.
(struct dwo_sections): New type.
(struct dwo_unit): New type.
(struct dwo_file): New type.
(die_reader_specs): New member dwo_file.
(dwarf2_locate_sections): Watch for .debug_addr.
(zlib_decompress_section): Use sectp->owner instead of objfile->obfd.
(dwarf2_read_section): Get bfd of section from bfd's asection,
instead of objfile.
(create_cus_from_index): Initialize the_cu->info_or_types_section.
(create_signatured_type_table_from_index): Initialize
sig_type->info_or_types_section.
(dw2_get_file_names): Statement lists for type units with DWO files
live in the DWO file.
(create_debug_types_hash_table): New function.
(create_all_type_units): Rewrite.
(init_cu_die_reader): New arg dwo_file, all callers updated.
(init_and_read_dies_worker): Get section from
this_cu->info_or_types_section. Set sig_type->type_offset_in_section.
Watch for DW_AT_GNU_dwo_name and if present lookup the file and
continue reading the CU/TU from there.
(init_cutu_and_read_dies_no_follow): New arg dwo_file, all callers
updated. Get section from this_cu->info_or_types_section.
(create_all_comp_units): Initialize this_cu->info_or_types_section.
(skip_one_die): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(hash_dwo_file, eq_dwo_file): New functions.
(allocate_dwo_file_hash_table): New function.
(hash_dwo_unit, eq_dwo_unit): New functions.
(allocate_dwo_unit_table): New function.
(dwarf2_locate_dwo_sections): New function.
(struct create_dwo_info_table_data): New type.
(create_debug_info_hash_table_reader): New function.
(create_debug_info_hash_table): New function.
(try_open_dwo_file, open_dwo_file, init_dwo_file): New function.
(lookup_dwo_file): New function.
(lookup_dwo_comp_unit, lookup_dwo_type_unit): New functions.
(free_dwo_file, free_dwo_file_cleanup): New functions.
(free_dwo_file_from_slot, free_dwo_files): New functions.
(dwarf2_get_pc_bounds): Handle DW_FORM_GNU_addr_index.
(dwarf2_record_block_ranges): Ditto.
(read_partial_die): Ditto.
(process_enumeration_scope): Update to use type_offset_in_section.
(read_full_die_1): New function.
(read_full_die): Rewrite.
(read_attribute_value): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(read_addr_index_1, read_addr_index): New functions.
(read_addr_index_from_leb128): New function.
(struct dwarf2_read_addr_index_data): New type.
(dwarf2_read_addr_index_reader): New function.
(dwarf2_read_addr_index): New function.
(read_str_index): New function.
(leb128_size): New function.
(dwarf_decode_line_header): Delete arg abfd, all callers updated.
If processing a type unit from a DWO file, get the line section
from the DWO file.
(var_decode_location): Watch for DW_OP_GNU_addr_index.
(dwarf2_const_value_attr): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(lookup_die_type): Check whether section offset of type's die is
known before looking it up. Remove assert. Condition can
legimately happen for inter-cu type references.
(dwarf_attr_name): Handle Fission attributes.
(dwarf_form_name): Handle Fission forms.
(dump_die_shallow): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(follow_die_sig): Update to use type_offset_in_section.
(decode_locdesc): New case DW_OP_GNU_addr_index.
(skip_form_bytes): New cases DW_FORM_GNU_addr_index,
DW_FORM_GNU_str_index.
(cu_debug_loc_section): New function.
(fill_in_loclist_baton, dwarf2_symbol_mark_computed): Call it.
(dwarf2_per_objfile_free): Unmap .debug_addr section.
Free DWO files if present.
* xcoffread.c (dwarf2_xcoff_names): Add .debug_addr.
testsuite/
* gdb.dwarf2/dw2-intercu.S (.Ltype_int2_in_cu2): Renamed from
.Ltype_int_in_cu2. Use name "int2" instead of "int".
All uses updated.
* gdb.dwarf2/dw2-intercu.exp: Add "ptype int2" ahead of
"ptype func_cu1" to expand cu2 before cu1.
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Code cleanupp: Use cu_offset and sect_offset compile time type checking.
* dwarf2expr.c (add_piece, dwarf_get_base_type, execute_stack_op)
(ctx_no_dwarf_call, ctx_no_get_base_type): Use cu_offset and
sect_offset.
* dwarf2expr.h (cu_offset, sect_offset): New types.
(struct dwarf_expr_context_funcs) <dwarf_call>
(struct dwarf_expr_context_funcs) <get_base_type>: Use cu_offset and
sect_offset.
(struct dwarf_expr_context) <len>: Improve the comment.
(struct dwarf_expr_piece, ctx_no_dwarf_call, ctx_no_get_base_type): Use
cu_offset and sect_offset.
* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call)
(dwarf_expr_get_base_type, needs_frame_dwarf_call)
(dwarf2_compile_expr_to_ax, disassemble_dwarf_expression): Likewise.
* dwarf2loc.h: Include dwarf2expr.h.
(dwarf2_fetch_die_location_block, dwarf2_get_die_type): Use cu_offset
and sect_offset.
* dwarf2read.c (struct dwarf2_per_objfile) <debug_types_type_hash>:
Improve the comment.
(struct comp_unit_head, struct dwarf2_cu, struct dwarf2_per_cu_data)
(struct signatured_type, struct line_header, struct partial_die_info)
(struct die_info, find_partial_die, dwarf2_get_ref_die_offset)
(lookup_signatured_type_at_offset, dwarf2_find_containing_comp_unit)
(get_die_type_at_offset, create_cus_from_index)
(create_signatured_type_table_from_index, dw2_get_file_names)
(offset_in_cu_p, read_comp_unit_head, error_check_comp_unit_head)
(read_and_check_comp_unit_head, read_and_check_type_unit_head)
(create_debug_types_hash_table, process_psymtab_comp_unit)
(load_partial_comp_unit, create_all_comp_units)
(partial_die_parent_scope, partial_die_full_name, skip_one_die)
(load_full_comp_unit, dwarf2_physname, read_import_statement)
(inherit_abstract_dies, read_func_scope, read_call_site_scope)
(dwarf2_add_member_fn, process_enumeration_scope, read_module_type)
(read_typedef, die_hash, die_eq, read_full_die, dwarf2_read_abbrevs)
(load_partial_dies, read_partial_die, find_partial_die_in_comp_unit)
(find_partial_die, read_attribute_value, lookup_die_type)
(dump_die_shallow, store_in_ref_table): Use cu_offset and sect_offset.
(is_ref_attr): New function comment.
(dwarf2_get_ref_die_offset): New function comment, new variable retval.
Use cu_offset and sect_offset.
(follow_die_offset, follow_die_ref, dwarf2_fetch_die_location_block)
(dwarf2_get_die_type, follow_die_sig, lookup_signatured_type_at_offset)
(load_full_type_unit, read_signatured_type, per_cu_header_read_in)
(dwarf2_find_containing_comp_unit, struct dwarf2_offset_and_type)
(offset_and_type_hash, offset_and_type_eq, set_die_type)
(get_die_type_at_offset, partial_die_hash, partial_die_eq)
(write_one_signatured_type, write_psymtabs_to_index): Use cu_offset and
sect_offset.
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gdb/ChangeLog:
Copyright year update in most files of the GDB Project.
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Revert:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* dwarf2expr.c (ctx_no_read_reg): New function.
* dwarf2expr.h (ctx_no_read_reg): New declaration.
* dwarf2read.c (read_2_signed_bytes, read_4_signed_bytes): Remove.
(decode_locdesc_read_mem, decode_locdesc_ctx_funcs): New.
(decode_locdesc): Replace by a caller of dwarf_expr_eval.
gdb/testsuite/
* gdb.dwarf2/dw2-simple-locdesc.exp (p &s.shl): KFAIL it.
Revert the part of:
2011-07-27 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.dwarf2/dw2-stack-boundary.exp (check partial symtab errors):
Change the expected string.
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Display @entry parameter values even for references.
* ada-valprint.c (ada_val_print_1) <TYPE_CODE_REF>: Try also
coerce_ref_if_computed.
* c-valprint.c (c_val_print) <TYPE_CODE_REF>: Likewise.
* dwarf2expr.c (dwarf_block_to_dwarf_reg_deref): New function.
(execute_stack_op) <DW_OP_GNU_entry_value>: Add -1 deref_size to the
existing push_dwarf_reg_entry_value call. Add new detection calling
dwarf_block_to_dwarf_reg_deref. Update the error message.
(ctx_no_push_dwarf_reg_entry_value): New parameter deref_size.
* dwarf2expr.h
(struct dwarf_expr_context_funcs) <push_dwarf_reg_entry_value>: Add new
parameter deref_size, describe it in the comment.
(ctx_no_push_dwarf_reg_entry_value): Add new parameter deref_size.
(dwarf_block_to_dwarf_reg_deref): New declaration.
* dwarf2loc.c (dwarf_entry_parameter_to_value): Add new parameter
deref_size, describe it in the function comment. New variables
data_src and size, fetch the alternative block accoring to DEREF_SIZE.
(dwarf_expr_push_dwarf_reg_entry_value): Add new parameter deref_size,
describe it in the function comment. Fetch the alternative block
accoring to DEREF_SIZE.
(entry_data_value_coerce_ref, entry_data_value_copy_closure)
(entry_data_value_free_closure, entry_data_value_funcs): New.
(value_of_dwarf_reg_entry): New variables checked_type, target_type,
outer_val, target_val, val and addr. Try to fetch and create also
referenced value content.
(pieced_value_funcs): NULL value for coerce_ref.
(needs_dwarf_reg_entry_value): Add new parameter deref_size.
* f-valprint.c (f_val_print) <TYPE_CODE_REF>: Try also
coerce_ref_if_computed.
* opencl-lang.c (opencl_value_funcs): NULL value for coerce_ref.
* p-valprint.c (pascal_val_print) <TYPE_CODE_REF>: Likewise.
* stack.c (read_frame_arg): Compare also dereferenced values.
* value.c (value_computed_funcs): Make the parameter v const, use
value_lval_const for it.
(value_lval_const, coerce_ref_if_computed): New function.
(coerce_ref): New variable retval. Call also coerce_ref_if_computed.
* value.h (struct lval_funcs): New field coerce_ref.
(value_computed_funcs): Make the parameter v const.
(value_lval_const, coerce_ref_if_computed): New declarations.
gdb/testsuite/
Display @entry parameter values even for references.
* gdb.arch/amd64-entry-value.cc (reference, datap, datap_input): New
functions.
(main): New variables regvar, nodatavarp, stackvar1, stackvar2. Call
reference and datap_input.
* gdb.arch/amd64-entry-value.exp (reference, breakhere_reference): New
breakpoints.
(continue to breakpoint: entry_reference: reference)
(entry_reference: bt at entry)
(continue to breakpoint: entry_reference: breakhere_reference)
(entry_reference: bt, entry_reference: ptype regparam)
(entry_reference: p regparam, entry_reference: ptype regparam@entry)
(entry_reference: p regparam@entry, entry_reference: p ®param@entry)
(entry_reference: p regcopy, entry_reference: p nodataparam)
(entry_reference: p nodataparam@entry): New tests.
|
|
Display @entry parameter values (without references).
* dwarf2expr.c (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset):
New functions.
* dwarf2expr.h (dwarf_block_to_fb_offset, dwarf_block_to_sp_offset):
New declarations.
* dwarf2loc.c (dwarf2_find_location_expression): Support location list
entry record.
(dwarf_entry_parameter_to_value, value_of_dwarf_reg_entry)
(value_of_dwarf_block_entry, locexpr_read_variable_at_entry): New
functions.
(dwarf2_locexpr_funcs): Install locexpr_read_variable_at_entry.
(loclist_read_variable_at_entry): New function.
(dwarf2_loclist_funcs): Install loclist_read_variable_at_entry.
* dwarf2read.c (read_call_site_scope): Support also DW_OP_fbreg in
DW_AT_location, call dwarf_block_to_sp_offset for it.
* frame.h (print_entry_values_no, print_entry_values_only)
(print_entry_values_preferred, print_entry_values_if_needed)
(print_entry_values_both, print_entry_values_compact)
(print_entry_values_default, print_entry_values): New declarations.
(struct frame_arg): New field entry_kind.
(read_frame_arg): New parameter entryargp.
* mi/mi-cmd-stack.c (list_arg_or_local): New gdb_assert for
arg->entry_kind. Optionally print the `@entry' suffix.
(list_args_or_locals): New variable entryarg, initialize it.
Initialize also entry_kind of arg and entryarg. Conditionalize
list_arg_or_local for arg, add list_arg_or_local for entryarg. Call
xfree for entryarg.error.
* stack.c (print_entry_values_no, print_entry_values_only)
(print_entry_values_preferred, print_entry_values_if_needed)
(print_entry_values_both, print_entry_values_compact)
(print_entry_values_default, print_entry_values_choices)
(print_entry_values): New variables.
(print_frame_arg): New gdb_assert for arg->entry_kind. Optionally
print the `@entry' suffix, possibly in combination for
print_entry_values_compact.
(read_frame_arg): New parameter entryargp, new variables entryval,
entryval_error and val_equal. Read in also entryargp, respect
print_entry_values, compare the values using val_equal, fill in also
argp->entry_kind (together with entryargp->entry_kind).
(print_frame_args): New variable entryarg, initialize it.
Conditionalize print_frame_arg for arg, add print_frame_arg for
entryarg. Call xfree for entryarg.error.
(_initialize_stack): Call add_setshow_enum_cmd for `entry-values'.
* symtab.h (struct symbol_computed_ops): New field
read_variable_at_entry.
gdb/doc/
Display @entry parameter values (without references).
* gdb.texinfo (Tail Call Frames): Add anchor. Add self tail call
example.
(Print Settings): New description of set print entry-values and show
print entry-values.
gdb/testsuite/
Display @entry parameter values (without references).
* gdb.arch/amd64-entry-value.cc (locexpr, stacktest, data, data2)
(different, validity, invalid): New functions.
(main): Call them.
* gdb.arch/amd64-entry-value.exp: New breakpoints breakhere_locexpr,
stacktest, breakhere_stacktest, different, breakhere_different,
breakhere_validity and breakhere_invalid.
(entry: bt): Update for @entry.
(entry_locexpr: *, entry_stack: *, entry_equal: *, entry_different: *)
(entry_validity: *, entry_invalid: *): Many new tests.
* gdb.base/break.exp
(run until breakpoint set at small function, optimized file): Accept
also the @entry suffix.
* gdb.mi/Makefile.in (PROGS): Add mi2-amd64-entry-value.
* gdb.mi/mi2-amd64-entry-value.c: New files.
* gdb.mi/mi2-amd64-entry-value.exp: New files.
|
|
Implement basic support for DW_TAG_GNU_call_site.
* block.c: Include gdbtypes.h and exceptions.h.
(call_site_for_pc): New function.
* block.h (call_site_for_pc): New declaration.
* defs.h: Include hashtab.h.
(make_cleanup_htab_delete, core_addr_hash, core_addr_eq): New
declarations.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): Install
ctx_no_push_dwarf_reg_entry_value.
* dwarf2expr.c (read_uleb128, read_sleb128): Support R as NULL.
(dwarf_block_to_dwarf_reg): New function.
(execute_stack_op) <DW_OP_GNU_entry_value>: Implement it.
(ctx_no_push_dwarf_reg_entry_value): New function.
* dwarf2expr.h (struct dwarf_expr_context_funcs): New field
push_dwarf_reg_entry_value.
(ctx_no_push_dwarf_reg_entry_value, dwarf_block_to_dwarf_reg): New
declarations.
* dwarf2loc.c: Include gdbcmd.h.
(dwarf_expr_ctx_funcs): New forward declaration.
(entry_values_debug, show_entry_values_debug, call_site_to_target_addr)
(dwarf_expr_reg_to_entry_parameter)
(dwarf_expr_push_dwarf_reg_entry_value): New.
(dwarf_expr_ctx_funcs): Install dwarf_expr_push_dwarf_reg_entry_value.
(dwarf2_evaluate_loc_desc_full): Handle NO_ENTRY_VALUE_ERROR.
(needs_dwarf_reg_entry_value): New function.
(needs_frame_ctx_funcs): Install it.
(_initialize_dwarf2loc): New function.
* dwarf2loc.h (entry_values_debug): New declaration.
* dwarf2read.c (struct dwarf2_cu): New field call_site_htab.
(read_call_site_scope): New forward declaration.
(process_full_comp_unit): Copy call_site_htab.
(process_die): Support DW_TAG_GNU_call_site.
(read_call_site_scope): New function.
(dwarf2_get_pc_bounds): Support NULL HIGHPC.
(dwarf_tag_name): Support DW_TAG_GNU_call_site.
(cleanup_htab): Delete.
(write_psymtabs_to_index): Use make_cleanup_htab_delete instead of it.
* exceptions.h (enum errors): New NO_ENTRY_VALUE_ERROR.
* gdb-gdb.py (StructMainTypePrettyPrinter): Support
FIELD_LOC_KIND_DWARF_BLOCK.
* gdbtypes.h (enum field_loc_kind): New entry
FIELD_LOC_KIND_DWARF_BLOCK.
(struct main_type): New loc entry dwarf_block.
(struct call_site, FIELD_DWARF_BLOCK, SET_FIELD_DWARF_BLOCK)
(TYPE_FIELD_DWARF_BLOCK): New.
* python/py-type.c: Include dwarf2loc.h.
(check_types_equal): Support FIELD_LOC_KIND_DWARF_BLOCK. New
internal_error call on unknown FIELD_LOC_KIND.
* symtab.h (struct symtab): New field call_site_htab.
* utils.c (do_htab_delete_cleanup, make_cleanup_htab_delete)
(core_addr_hash, core_addr_eq): New functions.
gdb/testsuite/
Implement basic support for DW_TAG_GNU_call_site.
* gdb.arch/Makefile.in (EXECUTABLES): Add amd64-entry-value.
* gdb.arch/amd64-entry-value.cc: New file.
* gdb.arch/amd64-entry-value.exp: New file.
|
|
Fix DW_OP_GNU_implicit_pointer for DWARF32 v3+ on 64-bit arches.
* dwarf2-frame.c (execute_stack_op): Initialize ctx->ref_addr_size.
* dwarf2expr.c (execute_stack_op) <DW_OP_GNU_implicit_pointer>: Use
ctx->ref_addr_size. Handle its invalid value.
* dwarf2expr.h (struct dwarf_expr_context): New field ref_addr_size.
* dwarf2loc.c (dwarf2_evaluate_loc_desc_full)
(dwarf2_loc_desc_needs_frame): Initialize ctx->ref_addr_size.
* dwarf2loc.h (dwarf2_per_cu_ref_addr_size): New declaration.
* dwarf2read.c (decode_locdesc): Initialize ctx->ref_addr_size.
(dwarf2_per_cu_ref_addr_size): New function.
gdb/testsuite/
Fix DW_OP_GNU_implicit_pointer for DWARF32 v3+ on 64-bit arches.
* gdb.dwarf2/implptr-64bit.S: New file.
* gdb.dwarf2/implptr-64bit.exp: New file.
|
|
* dwarf2expr.c (ctx_no_read_reg): New function.
* dwarf2expr.h (ctx_no_read_reg): New declaration.
* dwarf2read.c (read_2_signed_bytes, read_4_signed_bytes): Remove.
(decode_locdesc_read_mem, decode_locdesc_ctx_funcs): New.
(decode_locdesc): Replace by a caller of dwarf_expr_eval.
gdb/testsuite/
* gdb.dwarf2/dw2-simple-locdesc.S: New file.
* gdb.dwarf2/dw2-simple-locdesc.exp: New file.
* gdb.dwarf2/dw2-stack-boundary.exp (check partial symtab errors):
Change the expected string.
|
|
* dwarf2-frame.c (no_get_frame_base, no_get_frame_cfa, no_get_frame_pc)
(no_get_tls_address, no_dwarf_call, no_base_type): Move to the other
file.
(dwarf2_frame_ctx_funcs): Reference the renamed functions.
* dwarf2expr.c (ctx_no_get_frame_base, ctx_no_get_frame_cfa)
(ctx_no_get_frame_pc, ctx_no_get_tls_address, ctx_no_dwarf_call)
(ctx_no_get_base_type): Move the functions here.
* dwarf2expr.h (ctx_no_get_frame_base, ctx_no_get_frame_cfa)
(ctx_no_get_frame_pc, ctx_no_get_tls_address, ctx_no_dwarf_call)
(ctx_no_get_base_type): New declarations.
|
|
Code cleanup.
* dwarf2-frame.c (dwarf2_frame_ctx_funcs): New.
(execute_stack_op): Use dwarf2_frame_ctx_funcs
* dwarf2expr.c (dwarf_get_base_type): Access get_base_type via funcs.
(execute_stack_op): Access read_reg, get_frame_base, read_mem,
get_frame_cfa, get_tls_address and dwarf_call via funcs.
* dwarf2expr.h (struct dwarf_expr_context): New forward declaration.
(struct dwarf_expr_context_funcs): New, move here methods from ...
(struct dwarf_expr_context): ... here. New fields funcs.
* dwarf2loc.c (dwarf_expr_dwarf_call): Access get_frame_pc via funcs.
(dwarf_expr_ctx_funcs): New.
(dwarf2_evaluate_loc_desc_full): Use dwarf_expr_ctx_funcs.
(needs_frame_dwarf_call): Access get_frame_pc via funcs.
(needs_frame_ctx_funcs): New.
(dwarf2_loc_desc_needs_frame): Use needs_frame_ctx_funcs.
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|
(make_cleanup_value_free): Likewise.
* dwarf2loc.c (dwarf2_evaluate_loc_desc_full): Handle value
freeing correctly.
(dwarf2_loc_desc_needs_frame): Call
make_cleanup_value_free_to_mark.
* dwarf2expr.h (struct dwarf_expr_context) <mark>: Remove field.
* dwarf2expr.c (free_dwarf_expr_context): Don't call
value_free_to_mark.
(new_dwarf_expr_context): Don't call value_mark.
* dwarf2-frame.c (execute_stack_op): Call
make_cleanup_value_free_to_mark.
* defs.h (make_cleanup_value_free): Declare.
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|
PR gdb/12617:
* value.h (value_from_contents): Declare.
* value.c (value_from_contents): New function.
* dwarf2read.c (dwarf_stack_op_name): Add new values.
(dwarf2_get_die_type): New function.
* dwarf2loc.c (dwarf_expr_get_base_type): New function.
(allocate_piece_closure): Acquire reference to values.
(read_pieced_value): Update for value-based expressions.
(write_pieced_value): Likewise.
(free_pieced_value_closure): Call value_free as needed.
(dwarf2_evaluate_loc_desc_full): Set get_base_type field.
Update for value-based expressions.
* dwarf2loc.h (dwarf2_get_die_type): Declare.
* dwarf2expr.h (struct dwarf_stack_value) <value>: Change type.
<get_base_type>: New field.
(struct dwarf_expr_piece) <v.value>: Change type.
<v.regno>: New field.
(struct dwarf_expr_context) <mark>: New field.
(dwarf_expr_piece, dwarf_expr_fetch): Update.
(dwarf_expr_pop, dwarf_expr_push): Remove.
(dwarf_expr_push_address): Declare.
* dwarf2expr.c (dwarf_arch_cookie): New global.
(struct dwarf_gdbarch_types): New.
(dwarf_gdbarch_types_init, dwarf_expr_address_type): New
functions.
(dwarf_expr_push): Change type of 'value' argument. Update. Now
static.
(dwarf_expr_push_address): New function.
(dwarf_expr_pop): Now static.
(dwarf_expr_fetch): Change return type.
(dwarf_require_integral): New function.
(dwarf_expr_fetch): Simplify.
(add_piece): Update.
(base_types_equal_p, dwarf_get_base_type, get_unsigned_type): New
functions.
(execute_stack_op) <sign_ext>: Remove.
Use values for DWARF stack.
<DW_OP_GNU_const_type, DW_OP_GNU_deref_type,
DW_OP_GNU_regval_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret>:
New cases.
(_initialize_dwarf2expr): New function.
(add_piece): Update.
(new_dwarf_expr_context): Set new field.
(free_dwarf_expr_context): Call value_free_to_mark.
* dwarf2-frame.c (no_base_type): New function.
(execute_stack_op): Set get_base_type field. Update.
gdb/testsuite
* gdb.dwarf2/typeddwarf.S: New file.
* gdb.dwarf2/typeddwarf.c: New file.
* gdb.dwarf2/typeddwarf.exp: New file.
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|
* darwin-nat-info.c: Fix comment typo.
* dwarf2expr.h: Ditto.
* fbsd-nat.c: Ditto.
* fbsd-nat.h: Ditto.
* frame-unwind.h: Ditto.
* frame.h: Ditto.
* hppa-hpux-tdep.c: Ditto.
* i386-linux-nat.c: Ditto.
* linux-nat.c: Ditto.
* nbsd-nat.c: Ditto.
* nbsd-nat.h: Ditto.
* ppc-linux-tdep.c: Ditto.
* serial.c: Ditto.
* ui-file.h: Ditto.
* tui/tui-winsource.c: Ditto.
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|
(compile_dwarf_to_ax) <default>: Use unimplemented.
<DW_OP_deref>: Update.
(disassemble_dwarf_expression): Update.
* dwarf2read.c (dwarf_stack_op_name): Remove 'def' argument.
(decode_locdesc): Update.
* dwarf2expr.h (dwarf_stack_op_name): Update.
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|
* opencl-lang.c (lval_func_check_synthetic_pointer): New
function.
* value.h (struct lval_funcs) <indirect, check_synthetic_pointer>:
New fields.
(value_bits_synthetic_pointer): Declare.
* value.c (value_bits_synthetic_pointer): New function.
* valprint.c (valprint_check_validity): Handle synthetic
pointers.
* valops.c (value_ind): Use new 'indirect' lval_funcs method.
* valarith.c (value_ptradd): Use set_value_component_location.
* p-valprint.c (pascal_object_print_value_fields): Handle
synthetic pointers.
* jv-valprint.c (java_print_value_fields): Handle synthetic
pointers.
* dwarf2read.c (dwarf_stack_op_name): Add
DW_OP_GNU_implicit_pointer.
(dwarf2_fetch_die_location_block): Add get_frame_pc, baton
arguments. Handle location lists.
(fill_in_loclist_baton): New function.
(dwarf2_symbol_mark_computed): Use it.
* dwarf2loc.h (dwarf2_find_location_expression): Declare.
(dwarf2_fetch_die_location_block): Add get_frame_pc, baton
arguments.
* dwarf2loc.c (dwarf2_find_location_expression): Rename from
find_location_expression. No longer static. Update all callers.
(dwarf_expr_frame_pc): New function.
(per_cu_dwarf_call): Add get_frame_pc, baton arguments. Update
all callers.
(struct piece_closure) <per_cu>: New field.
(allocate_piece_closure): Add per_cu argument.
(read_pieced_value): Handle DWARF_VALUE_IMPLICIT_POINTER.
(check_pieced_value_bits): Remove validity argument, add check_for
argument. Handle DWARF_VALUE_IMPLICIT_POINTER.
(check_pieced_value_validity, check_pieced_value_invalid):
Update.
(check_pieced_synthetic_pointer): New function.
(get_frame_address_in_block_wrapper): New function.
(indirect_pieced_value): New function.
(pieced_value_funcs): Update.
(invalid_synthetic_pointer): New function.
(dwarf2_evaluate_loc_desc_full): Rename from
dwarf2_evaluate_loc_desc. Add byte_offset argument.
(dwarf2_evaluate_loc_desc): Rewrite.
(dwarf2_loc_desc_needs_frame): Set new field on context.
(get_ax_pc): New function.
(disassemble_dwarf_expression): Handle
DW_OP_GNU_implicit_pointer.
* dwarf2expr.h (enum dwarf_value_location)
<DWARF_VALUE_IMPLICIT_POINTER>: New constant.
(struct dwarf_expr_context) <get_frame_pc>: New field.
(struct dwarf_expr_piece) <v.ptr>: New field.
* dwarf2expr.c (add_piece): Handle DWARF_VALUE_IMPLICIT_POINTER.
(execute_stack_op): Handle DW_OP_GNU_implicit_pointer.
* dwarf2-frame.c (no_get_frame_pc): New function.
(execute_stack_op): Set new field on context.
* cp-valprint.c (cp_print_value_fields): Handle synthetic
pointers.
gdb/testsuite
* gdb.dwarf2/implptr.exp: New file.
* gdb.dwarf2/implptr.c: New file.
* gdb.dwarf2/implptr.S: New file.
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|
LOC_COMPUTED symbol.
* dwarf2loc.c (dwarf2_evaluate_loc_desc): Set new field.
(dwarf2_loc_desc_needs_frame): Likewise.
(compile_dwarf_to_ax) <DW_OP_addr>: Use offset.
* dwarf2expr.h (struct dwarf_expr_context) <offset>: New field.
* dwarf2expr.c (execute_stack_op) <DW_OP_addr>: Use offset.
* dwarf2-frame.c (execute_stack_op): Set 'offset' field. Add
'offset' argument.
(struct dwarf2_frame_cache) <text_offset>: New field.
(dwarf2_frame_cache): Set new field.
(dwarf2_frame_prev_register): Update.
(dwarf2_frame_sniffer): Update.
(dwarf2_frame_base_sniffer): Update.
(dwarf2_frame_find_fde): Add 'out_offset' argument.
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|
* dwarf2expr.h (struct dwarf_value_location): Use ULONGEST as type
of stack values.
(struct dwarf_expr_piece): Rename "expr" member to "mem". Add new
"value" member.
(dwarf_expr_push): Change input type to ULONGEST.
(dwarf_expr_fetch): Change return type to ULONGEST.
(dwarf_expr_fetch_address): Add prototype.
(dwarf2_read_address): Remove prototype.
* dwarf2expr.c (dwarf_expr_push): Use ULONGEST as type of stack values.
Truncate stack values to ctx->addr_size bytes.
(dwarf_expr_fetch): Change return value to ULONGEST.
(dwarf_expr_fetch_address): New function.
(add_piece): Use dwarf_expr_fetch_address instead of dwarf_expr_fetch
when appropriate. Update for struct dwarf_expr_piece changes.
(dwarf2_read_address): Remove.
(unsigned_address_type): Remove.
(signed_address_type): Remove.
(execute_stack_op): Use dwarf_expr_fetch_address instead of
dwarf_expr_fetch when appropriate. Use ULONGEST as type of stack
values. Perform operations on ULONGEST instead of on GDB values,
sign-extending from ctx->addr_size bytes as needed. Read DW_OP_addr
values and DW_OP_deref results as unsigned integers.
* dwarf2loc.c (read_pieced_value): Update for struct dwarf_expr_piece
changes.
(write_pieced_value): Likewise.
(dwarf2_evaluate_loc_desc): Use dwarf_expr_fetch_address instead of
dwarf_expr_fetch when appropriate.
(compile_dwarf_to_ax): Read DW_OP_addr values as unsigned integers.
* dwarf2-frame.c (execute_stack_op): Use dwarf_expr_fetch_address
instead of dwarf_expr_fetch when appropriate.
testsuite/ChangeLog:
* gdb.cell/dwarfaddr.exp: New file.
* gdb.cell/dwarfaddr.S: New file.
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|
(DEF_VEC_ALLOC_FUNC_I): Update.
(DEF_VEC_ALLOC_FUNC_P): Likewise.
(DEF_VEC_ALLOC_FUNC_O): Likewise.
* dwarf2loc.c (struct axs_var_loc): Remove.
(unimplemented): New function.
(translate_register): Likewise.
(access_memory): Likewise.
(compile_dwarf_to_ax): Likewise.
(dwarf2_tracepoint_var_loc): Remove.
(dwarf2_tracepoint_var_access): Likewise.
(dwarf2_tracepoint_var_ref): Likewise.
(locexpr_tracepoint_var_ref): Use compile_dwarf_to_ax.
(loclist_tracepoint_var_ref): Likewise.
* dwarf2expr.h (dwarf_expr_require_composition): Declare.
* dwarf2expr.c (dwarf_expr_require_composition): Rename from
require_composition. No longer static.
(execute_stack_op): Update.
* ax-gdb.h (trace_kludge): Declare.
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|
Fix PR 10640.
* dwarf2-frame.c (no_dwarf_call): New function.
(execute_stack_op): Set CTX->DWARF_CALL.
* dwarf2expr.c (execute_stack_op) <DW_OP_call2, DW_OP_call4>: New.
* dwarf2expr.h (struct dwarf_expr_context) <dwarf_call>: New.
(struct dwarf_expr_context) <get_subr>: Remove the #if0-ed field.
* dwarf2loc.c (per_cu_dwarf_call, dwarf_expr_dwarf_call): New functions.
(dwarf2_evaluate_loc_desc): Initialize CTX->DWARF_CALL.
(needs_frame_dwarf_call): New function.
(dwarf2_loc_desc_needs_frame): Initialize CTX->DWARF_CALL.
* dwarf2read.c (follow_die_offset): Based on former follow_die_ref.
Update the comment. Move variables die, offset and error call to ...
(follow_die_ref): ... a new function.
(dwarf2_fetch_die_location_block): New function.
* dwarf2loc.h (dwarf2_fetch_die_location_block): New prototype.
gdb/testsuite/
Test PR 10640.
* gdb.dwarf2/dw2-op-call.exp, gdb.dwarf2/dw2-op-call.S: New.
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|
* dwarf2loc.h (dwarf2_per_cu_data): Declare.
* dwarf2read.c (dwarf_stack_op_name): No longer static. Return
type is const. Add 'def' argument. Add missing operators, remove
unhandled ones.
(decode_locdesc): Update.
(dwarf2_always_disassemble): New global.
(show_dwarf2_always_disassemble): New function.
(_initialize_dwarf2_read): Add always-disassemble.
(dwarf2_per_cu_offset_size): New function.
* dwarf2loc.c (dwarf2_always_disassemble): Declare.
(piece_end_p): New function.
(locexpr_describe_location_piece): Replace 'size' argument with
'end'. Use piece_end_p. Rewrite recognition of TLS. Recognize
some constants. Remove errors.
(disassemble_dwarf_expression): New function.
(locexpr_describe_location_1): Use disassemble_dwarf_expression.
Add 'offset_size' argument.
(loclist_describe_location): Change output formatting.
* dwarf2expr.h (dwarf_stack_op_name): Declare.
gdb/doc
* gdb.texinfo (Maintenance Commands): Document maint set dwarf2
always-disassemble.
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|
(dwarf_expr_frame_base_1): Likewise.
(read_pieced_value): Update.
(needs_frame_frame_base): Constify.
(dwarf2_tracepoint_var_loc): Likewise.
(dwarf2_tracepoint_var_access): Likewise.
(locexpr_describe_location_piece): Likewise.
(locexpr_describe_location_1): Likewise.
* dwarf2expr.h (struct dwarf_expr_context) <get_frame_base>:
Constify.
(data): Now const.
(struct dwarf_expr_piece) <v.literal.data>: Likewise.
(dwarf_expr_eval, read_uleb128, read_sleb128)
(dwarf2_read_address): Update.
* dwarf2expr.c (dwarf_expr_eval): Constify.
(read_uleb128): Likewise.
(read_sleb128): Likewise.
(dwarf2_read_address): Likewise.
(require_composition): Likewise.
(execute_stack_op): Likewise.
* dwarf2-frame.h (struct dwarf2_frame_state_reg) <loc.exp>: Now a
"const gdb_byte *".
* dwarf2-frame.c (struct dwarf2_frame_state_reg_info) <cfa_exp>:
Now const.
(no_get_frame_base): Constify.
(execute_stack_op): Likewise.
(execute_cfa_program): Likewise.
(read_encoded_value): Likewise.
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* dwarf2loc.c (extract_bits_primitive): New function.
(extract_bits): Likewise.
(insert_bits): Likewise.
(copy_bitwise): Likewise.
(read_pieced_value): Do all operations in bits.
(write_pieced_value): Likewise.
* dwarf2expr.h (struct dwarf_expr_piece) <offset>: New field.
* dwarf2expr.c (add_piece): New arguments bit_piece, offset.
Always use xrealloc to resize piece array.
(execute_stack_op) <DW_OP_reg0>: Handle DW_OP_bit_piece.
<DW_OP_piece>: Update.
<DW_OP_bit_piece>: New case.
gdb/testsuite
* gdb.dwarf2/pieces.exp (pieces_test_f3): New proc.
Call it.
* gdb.dwarf2/pieces.S: Update.
* gdb.dwarf2/pieces.c (struct B): Remove initial field.
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* dwarf2loc.c (read_pieced_value): Exit loop when result is full.
<DWARF_VALUE_OPTIMIZED_OUT>: New case.
* dwarf2expr.h (enum dwarf_value_location)
<DWARF_VALUE_OPTIMIZED_OUT>: New constant.
* dwarf2expr.c (dwarf_expr_stack_empty_p): New function.
(add_piece): Handle empty piece.
(execute_stack_op) <DW_OP_piece>: Handle
DWARF_VALUE_OPTIMIZED_OUT.
gdb/testsuite
* gdb.dwarf2/pieces.exp (pieces_test_f6): New proc.
Call it.
* gdb.dwarf2/pieces.c (struct C): New.
(f6): New function.
* gdb.dwarf2/pieces.S: Replace.
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Automatic update by copyright.sh.
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enum values.
(struct dwarf_stack_value): New struct.
(struct dwarf_expr_context): Change type of `stack' from CORE_ADDR*
to struct dwarf_stack_value*.
(struct dwarf_expr_piece): Move `v.value' into its own struct, v.expr,
all uses updated. Add v.expr.in_stack_memory.
(dwarf_expr_push): Update declaration.
(dwarf_expr_fetch_in_stack_memory): Declare.
* dwarf2expr.c (dwarf_expr_grow_stack): Update calculation of
size of stack value.
(dwarf_expr_push): New arg in_stack_memory, all callers updated.
(dwarf_expr_fetch_in_stack_memory): New function.
(add_piece): Set in_stack_memory for non-literal values.
(execute_stack_op): Allow ops to specify whether the value is on the
program's stack.
(execute_stack_op, case DW_OP_fbreg): Mark value as in stack memory.
(execute_stack_op, case DW_OP_call_frame_cfa): Ditto.
(execute_stack_op, case DW_OP_dup): Copy in_stack_memory flag.
(execute_stack_op, cases DW_OP_pick, DW_OP_over): Ditto.
(execute_stack_op, cases DW_OP_swap, DW_OP_rot): Update type of
dwarf stack value.
* dwarf2loc.c (read_pieced_value): Call read_stack for values known
to be on the program's stack.
(dwarf2_evaluate_loc_desc, case DWARF_VALUE_MEMORY): Call
set_value_stack only for objects known to be in stack memory.
* dwarf2-frame.c (execute_stack_op): New arg initial_in_stack_memory,
all callers updated.
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* dwarf2loc.c (struct piece_closure) <arch>: New field.
(dwarf2_evaluate_loc_desc): Update.
(dwarf2_loc_desc_needs_frame): Likewise.
(allocate_piece_closure): Initialize new field.
(read_pieced_value): Update.
(write_pieced_value): Update.
(copy_pieced_value_closure): Update.
* dwarf2expr.h (enum dwarf_value_location): New.
(struct dwarf_expr_context) <in_reg>: Remove.
<location, len, data>: New fields.
(struct dwarf_expr_piece) <in_reg, value>: Remove.
<location, v>: New fields.
* dwarf2expr.c (add_piece): Remove in_reg, value arguments.
Update.
(require_composition): New function.
(execute_stack_op): Update.
<DW_OP_implicit_value, DW_OP_stack_value>: New cases.
<DW_OP_reg0>: Set location, not in_reg.
<DW_OP_regx>: Likewise. Use require_composition.
<DW_OP_fbreg>: Update.
<DW_OP_piece>: Likewise.
* dwarf2-frame.c (execute_stack_op): Update.
gdb/testsuite
* gdb.dwarf2/valop.S: New file.
* gdb.dwarf2/valop.exp: New file.
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* frame.h (frame_unwinder_is): Declare.
* frame.c (frame_unwinder_is): New function.
* dwarf2loc.c: Include dwarf2-frame.h.
(dwarf_expr_frame_cfa): New function.
(dwarf2_evaluate_loc_desc): Use it.
(needs_frame_frame_cfa): New function.
(dwarf2_loc_desc_needs_frame): Use it.
* dwarf2expr.h (struct dwarf_expr_context) <get_frame_cfa>: New
field.
* dwarf2expr.c (execute_stack_op) <DW_OP_call_frame_cfa>: New
case.
* dwarf2-frame.h (dwarf2_frame_cfa): Declare.
* dwarf2-frame.c (no_get_frame_cfa): New function.
(execute_stack_op): Use it.
(dwarf2_frame_cfa): New function.
gdb/testsuite
* gdb.dwarf2/callframecfa.exp: New file.
* gdb.dwarf2/callframecfa.S: New file.
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(dwarf2_loc_desc_needs_frame): Likewise.
* dwarf2expr.h (make_cleanup_free_dwarf_expr_context): Declare.
* dwarf2expr.c (free_dwarf_expr_context_cleanup): New function.
(make_cleanup_free_dwarf_expr_context): Likewise.
* dwarf2-frame.c (execute_stack_op): Make a cleanup.
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* dwarf2expr.c (dwarf2_read_address): Add gdbarch argument.
Call gdbarch_integer_to_address directly instead of converting
to value and back. Update comment.
(execute_stack_op): Update call site.
* dwarf2loc.c (find_location_expression): Likewise.
(locexpr_describe_location): Update
* dwarf2expr.h (struct dwarf_expr_context): Add gdbarch member.
* dwarf2-frame.c (execute_stack_op): Initialize ctx->gdbarch.
* dwarf2loc. (dwarf2_evaluate_loc_desc): Likewise.
(dwarf2_loc_desc_needs_frame): Likewise.
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Jim Blandy <jimb@codesourcery.com>
Daniel Jacobowitz <drow@false.org>
* dwarf2expr.h (struct dwarf_expr_context): Add ADDR_SIZE member.
(dwarf2_read_address): Update prototype.
* dwarf2expr.c (unsigned_address_type): Add ADDR_SIZE parameter.
(signed_address_type): Likewise.
(dwarf2_read_address): Replace BYTES_READ parameter with ADDR_SIZE.
(execute_stack_op): Update calls to unsigned_address_type,
signed_address_type and dwarf2_read_address. Fix implementation
of DW_OP_deref_size.
* dwarf2loc.h (dwarf2_per_cu_objfile): Add prototype.
(dwarf2_per_cu_addr_size): Likewise.
(struct dwarf2_locexpr_baton): Replace OBJFILE with PER_CU.
(struct dwarf2_loclist_baton): Likewise.
* dwarf2loc.c (find_location_expression): Update calls to
dwarf2_read_address. Use dwarf2_per_cu_objfile and
dwarf2_per_cu_addr_size to retrieve PER_CU parameters.
(locexpr_describe_location): Likewise.
(dwarf2_evaluate_loc_desc): Replace OBJFILE with PER_CU parameter.
Set ctx->addr_size to dwarf2_per_cu_addr_size (per_cu).
(dwarf2_loc_desc_needs_frame): Add PER_CU parameter. Set ctx->addr_size
to dwarf2_per_cu_addr_size (per_cu).
(locexpr_read_variable): Update dwarf2_evaluate_loc_desc call.
(loclist_read_variable): Likewise.
(locexpr_read_needs_frame): Update dwarf2_loc_desc_needs_frame call.
* dwarf2read.c (dwarf2_symbol_mark_computed): Set baton->per_cu
instead of baton->objfile.
(dwarf2_per_cu_obfile): New function.
(dwarf2_per_cu_addr_size): Likewise.
* dwarf2-frame.c (struct comp_unit): Move higher.
(struct dwarf2_cie): Add UNIT and ADDR_SIZE members.
(execute_stack_op): Add ADDR_SIZE parameter; set ctx->addr_size.
(execute_cfa_program): Add FDE parameter. Replace EH_FRAME_P
parameter by using fde->eh_frame_p. Use read_encoded_value
to implement DW_CFA_set_loc.
(struct dwarf2_frame_cache): Add ADDR_SIZE member.
(dwarf2_frame_cache): Set cache->addr_size. Update calls to
execute_stack_op and execute_cfa_program.
(dwarf2_frame_prev_register): Update calls to execute_stack_op.
(size_of_encoded_value): Remove.
(read_encoded_value): Add PTR_LEN and FUNC_BASE parameters.
Remove call to size_of_encoded_value. Implement DW_EH_PE_funcrel.
(add_cie): Set cie->unit backlink.
(decode_frame_entry_1): Set cie->addr_size. Update calls to
read_encoded_value.
(dwarf2_build_frame_info): Allocate UNIT on objfile obstack.
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Switch the license of all .h files to GPLv3.
Switch the license of all .cc files to GPLv3.
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based on information provided by the compiler. Also add new
DWARF OP, DW_OP_GNU_uninit, for this purpose.
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