A new vendor CFA DW_CFA_AARCH64_negate_ra_state was introduced for ARMv8.3-A
return address signing, it is multiplexing DW_CFA_GNU_window_save in CFA vendor
extension space.
This patch adds necessary code to make it available to external, the GDB
patch (https://sourceware.org/ml/gdb-patches/2017-08/msg00215.html) is intended
to use it.
A new DW_CFA_DUP for it is added in dwarf2.def. The use of DW_CFA_DUP is to
avoid duplicated case value issue when included in libiberty/dwarfnames.
Native x86 builds OK to make sure no macro expanding errors.
Committed on behalf of Jiong Wang.
include/
* dwarf2.def (DW_CFA_AARCH64_negate_ra_state): New DW_CFA_DUP.
* dwarf2.h (DW_CFA_DUP): New define.
libiberty/
* dwarfnames.c (DW_CFA_DUP): New define.
From-SVN: r252037
include/
* dwarf2.h (enum dwarf_source_language): Add DW_LANG_Fortran03
and DW_LANG_Fortran08.
gcc/
* dwarf2out.c (is_fortran): Also return true for DW_LANG_Fortran03
or DW_LANG_Fortran08.
(lower_bound_default): Return 1 for DW_LANG_Fortran03 or
DW_LANG_Fortran08.
(gen_compile_unit_die): Handle "GNU Fortran2003" and
"GNU Fortran2008" language strings.
* dbxout.c (get_lang_number): Use lang_GNU_Fortran.
* langhooks.h (lang_GNU_Fortran): New prototype.
* langhooks.c (lang_GNU_Fortran): New function.
* config/rs6000/rs6000.c (rs6000_output_function_epilogue): Use
lang_GNU_Fortran.
gcc/fortran/
* options.c: Include langhooks.h.
(gfc_post_options): Change lang_hooks.name based on
selected -std= mode.
From-SVN: r220422
* dwarf2.h (DW_AT_GNU_macros): New.
(enum dwarf_macro_record_type): New enum. Add DW_MACRO_GNU_*.
* dwarf2out.c (struct macinfo_struct): Change code to unsigned char.
(DEBUG_MACRO_SECTION, DEBUG_MACRO_SECTION_LABEL): Define.
(dwarf_attr_name): Handle DW_AT_GNU_macros.
(dwarf2out_define): If the vector is empty and
lineno is 0, emit a dummy entry first.
(dwarf2out_undef): Likewise. Remove redundant semicolon.
(htab_macinfo_hash, htab_macinfo_eq, output_macinfo_op,
optimize_macinfo_range): New functions.
(output_macinfo): Use them. If !dwarf_strict and .debug_str is
mergeable, optimize longer strings using
DW_MACRO_GNU_{define,undef}_indirect and if HAVE_COMDAT_GROUP,
optimize longer sequences of define/undef ops from headers
using DW_MACRO_GNU_transparent_include. For !dwarf_strict
emit a section headers.
(dwarf2out_init): For !dwarf_strict set debug_macinfo_section
and macinfo_section_label to DEBUG_MACRO_SECTION
resp. DEBUG_MACRO_SECTION_LABEL.
(dwarf2out_finish): For !dwarf_strict emit DW_AT_GNU_macros
instead of DW_AT_macro_info.
From-SVN: r176653
* dwarf2.h (DW_OP_GNU_const_type, DW_OP_GNU_regval_type,
DW_OP_GNU_deref_type, DW_OP_GNU_convert, DW_OP_GNU_reinterpret): New.
* dwarf2out.c (get_address_mode): New inline.
(mem_loc_descriptor): Add MEM_MODE parameter, adjust recursive calls,
if not dwarf_strict emit
DW_OP_GNU_{{const,regval,deref}_type,convert,reinterpret} when
desirable. Handle FLOAT_EXTEND, FLOAT_TRUNCATE, FLOAT,
UNSIGNED_FLOAT, FIX and UNSIGNED_FIX. Just return NULL for
FMA, STRICT_LOW_PART, CONST_VECTOR and CONST_FIXED.
(dwarf2out_frame_debug_cfa_expression, reg_loc_descriptor,
dw_loc_list_1, cst_pool_loc_descr, loc_list_from_tree): Adjust
mem_loc_descriptor callers.
(dwarf_stack_op_name, size_of_loc_descr, output_loc_operands,
output_loc_operands_raw, hash_loc_operands, compare_loc_operands):
Handle DW_OP_GNU_const_type, DW_OP_GNU_regval_type,
DW_OP_GNU_deref_type, DW_OP_GNU_convert and DW_OP_GNU_reinterpret.
(base_types): New variable.
(get_base_type_offset, calc_base_type_die_sizes,
base_type_for_mode, mark_base_types, base_type_cmp,
move_marked_base_types): New functions.
(calc_die_sizes): Assert that die_offset is 0 or equal to
next_die_offset.
(loc_descriptor): Only handle here lowpart SUBREGs of REG, for
others defer to mem_loc_descriptor. Adjust mem_loc_descriptor
callers. If not dwarf_strict, call mem_loc_descriptor even for
non-MODE_INT modes or MODE_INT modes larger than DWARF2_ADDR_SIZE.
(gen_subprogram_die): Don't give up on call site parameters
with non-integral or large integral modes. Adjust
mem_loc_descriptor callers.
(prune_unused_types): Call prune_unused_types_mark on base_types
vector entries.
(resolve_addr): Call mark_base_types.
(dwarf2out_finish): Call move_marked_base_types.
From-SVN: r173210
* final.c (final_scan_insn): Handle NOTE_INSN_CALL_ARG_LOCATION.
Call var_location debug hook even on CALL_INSNs.
(rest_of_clean_state): Don't print NOTE_INSN_CALL_ARG_LOCATION.
* rtl.def (ENTRY_VALUE): New.
* dwarf2out.c: Include cfglayout.h.
(dwarf_stack_op_name, size_of_loc_descr, output_loc_operands,
output_loc_operands_raw): Handle DW_OP_GNU_entry_value.
(struct call_arg_loc_node): New type.
(call_arg_locations, call_arg_loc_last, block_map, call_site_count,
tail_call_site_count): New variables.
(dwarf_tag_name): Handle DW_TAG_GNU_call_site and
DW_TAG_GNU_call_site_parameter.
(dwarf_attr_name): Handle DW_AT_GNU_call_site_value,
DW_AT_GNU_call_site_data_value, DW_AT_GNU_call_site_target,
DW_AT_GNU_call_site_target_clobbered, DW_AT_GNU_tail_call,
DW_AT_GNU_all_tail_call_sites, DW_AT_GNU_all_call_sites
and DW_AT_GNU_all_source_call_sites.
(mem_loc_descriptor): Handle ENTRY_VALUE.
(add_src_coords_attributes): Don't add enything if
DECL_SOURCE_LOCATION is UNKNOWN_LOCATION.
(dwarf2out_abstract_function): Save and clear call_arg_location,
call_site_count and tail_call_site_count around dwarf2out_decl call.
(gen_call_site_die): New function.
(gen_subprogram_die): Emit DW_TAG_GNU_call_site DIEs for call sites.
(gen_lexical_block_die, gen_inlined_subroutine_die): Update block_map.
(dwarf2out_function_decl): Clear call_arg_locations,
call_arg_loc_last, set call_site_count and tail_call_site_count
to -1 and free block_map.
(dwarf2out_var_location): Handle NOTE_INSN_CALL_ARG_LOCATION and
CALL_INSNs. Add NOTE_DURING_CALL_P var location notes even when not
followed by any real instructions.
(dwarf2out_begin_function): Set call_site_count and
tail_call_site_count to 0.
(resolve_addr): If DW_AT_abstract_origin of DW_TAG_GNU_call_site
is dw_val_class_addr, attempt to look it up again, for DECL_EXTERNAL
attempt to force a DIE for it and worst case remove the attribute.
(resolve_one_addr): For TREE_CONSTANT_POOL_ADDRESS_P SYMBOL_REFs
check TREE_ASM_WRITTEN of DECL_INITIAL of the decl instead of
the decl itself.
* var-tracking.c: Include tm_p.h.
(vt_stack_adjustments): For calls call note_register_arguments.
(argument_reg_set): New variable.
(add_stores): For MO_VAL_SET of non-tracked regs from argument_reg_set
ensure the VALUE is resolved.
(call_arguments): New variable.
(prepare_call_arguments): New function.
(add_with_sets): For MO_CALL set u.loc from call_arguments and clear it.
(struct expand_loc_callback_data): Add ignore_cur_loc field.
(vt_expand_loc_callback): If ignore_cur_loc, don't look at cur_loc and
always use the best expression.
(vt_expand_loc): Add ignore_cur_loc argument.
(vt_expand_loc_dummy): Clear ignore_cur_loc field.
(emit_note_insn_var_location): Adjust vt_expand_loc callers.
(emit_notes_in_bb) <case MO_CALL>: Add NOTE_INSN_CALL_ARG_LOCATION
note for all calls.
(vt_add_function_parameter): Use cselib_lookup_from_insn.
If dv is a VALUE, enter into hash table also ENTRY_VALUE for the
argument. Don't call cselib_preserve_only_values and
cselib_reset_table.
(note_register_arguments): New function.
(vt_initialize): Compute argument_reg_set. Call
vt_add_function_parameters before processing basic blocks instead of
afterwards. For calls call prepare_call_arguments before calling
cselib_process_insn.
* print-rtl.c (print_rtx): Handle NOTE_INSN_CALL_ARG_LOCATION.
* Makefile.in (dwarf2out.o): Depend on $(CFGLAYOUT_H).
(var-tracking.o): Depend on $(TM_P_H).
* cfglayout.h (insn_scope): New prototype.
* gengtype.c (adjust_field_rtx_def): Handle NOTE_INSN_CALL_ARG_LOCATION.
* cfglayout.c (insn_scope): No longer static.
* insn-notes.def (CALL_ARG_LOCATION): New.
* calls.c (expand_call, emit_library_call_value_1): Put USEs for
MEM arguments into CALL_INSN_FUNCTION_USAGE unconditionally.
* integrate.c (set_block_origin_self, set_block_abstract_flags): Do
nothing for DECL_EXTERNAL BLOCK_VARS.
cp/
* cp-objcp-common.c (cp_function_decl_explicit_p): Don't crash if
DECL_LANG_SPECIFIC is NULL.
include/
* dwarf2.h (DW_TAG_GNU_call_site, DW_TAG_GNU_call_site_parameter,
DW_AT_GNU_call_site_value, DW_AT_GNU_call_site_data_value,
DW_AT_GNU_call_site_target, DW_AT_GNU_call_site_target_clobbered,
DW_AT_GNU_tail_call, DW_AT_GNU_all_tail_call_sites,
DW_AT_GNU_all_call_sites,, DW_AT_GNU_all_source_call_sites,
DW_OP_GNU_entry_value): New.
From-SVN: r171033
* dwarf2out.c (dwarf_tag_name): Handle DW_TAG_rvalue_reference_type
and DW_TAG_template_alias.
(dwarf_attr_name): Handle DW_AT_main_subprogram,
DW_AT_data_bit_offset, DW_AT_const_expr, DW_AT_enum_class,
DW_AT_linkage_name, DW_AT_GNU_guarded_by, DW_AT_GNU_pt_guarded_by,
DW_AT_GNU_guarded, DW_AT_GNU_pt_guarded, DW_AT_GNU_locks_excluded,
DW_AT_GNU_exclusive_locks_required, DW_AT_GNU_shared_locks_required
and DW_AT_GNU_odr_signature.
(dwarf_form_name): Handle DW_FORM_sec_offset, DW_FORM_exprloc,
DW_FORM_flag_present and DW_FORM_ref_sig8.
(output_signature): Only print name on the first byte.
(output_die): Likewise for dw_val_class_data8.
* include/dwarf2.h (DW_LANG_Python): Add comment that it is
a DWARF 4 addition.
From-SVN: r152853
include/ChangeLog:
* dwarf2.h (enum dwarf_tag): Rename DW_TAG_template_parameter_pack and
DW_TAG_formal_parameter_pack into DW_TAG_GNU_template_parameter_pack
and DW_TAG_formal_parameter_pack until DWARF 5 is out.
gcc/ChangeLog:
* dwarf2out.c (dwarf_tag_name, gen_generic_params_dies,
generic_parameter_die, template_parameter_pack_die,
gen_formal_parameter_die, gen_subprogram_die): Adjust after renaming
DW_TAG_formal_parameter_pack and DW_TAG_template_parameter_pack into
DW_TAG_GNU_formal_parameter_pack and DW_TAG_GNU_template_parameter_pack.
gcc/testsuite/ChangeLog:
* g++.dg/debug/dwarf2/template-func-params-4.C: Adjust after renaming
DW_TAG_template_parameter_pack and DW_TAG_formal_parameter_pack
into DW_TAG_GNU_template_parameter_pack and
DW_TAG_GNU_formal_parameter_pack.
* g++.dg/debug/dwarf2/template-params-4.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-7.C: Likewise.
From-SVN: r152188
include/
Add rest of new values from DWARF Version 4.
* dwarf2.h (DW_TAG_rvalue_reference_type, DW_TAG_template_alias):
New tags.
(DW_FORM_ref_sig8): New name for DW_FORM_sig8.
(DW_AT_main_subprogram, DW_AT_data_bit_offset, DW_AT_const_expr,
DW_AT_enum_class, DW_AT_linkage_name, DW_AT_GNU_guarded_by,
DW_AT_GNU_pt_guarded_by, DW_AT_GNU_guarded, DW_AT_GNU_pt_guarded,
DW_AT_GNU_locks_excluded, DW_AT_GNU_exclusive_locks_required,
DW_AT_GNU_shared_locks_required, DW_AT_GNU_odr_signature): New
attributes.
(DW_LANG_Python): New language.
From-SVN: r152181
Fix for PR debug/41266
ChangeLog:
* include/dwarf2.h (enum dwarf_tag): Add
DW_TAG_template_parameter_pack and DW_TAG_formal_parameter_pack.
gcc/ChangeLog:
* dwarf2out.c (template_parameter_pack_die,
gen_formal_parameter_pack_die ): New functions.
(make_ith_pack_parameter_name): Remove this function.
(dwarf_tag_name): Support printing DW_TAG_template_parameter_pack and
DW_TAG_formal_parameter_pack.
(gen_generic_params_dies): Represent each template parameter pack
by a DW_TAG_template_parameter_pack DIE. Argument pack elements are
represented by usual DW_TAG_template_*_parameter DIEs that are
children of the DW_TAG_template_parameter_pack element DIE.
(generic_parameter_die): This doesn't deal with parameter pack
names anymore. Don't generate DW_AT_name for some DIEs, e.g. children of
parameter pack DIEs.
(gen_formal_parameter_die): Add a flag to not emit DW_AT_name
in certain cases, e.g. for pack elements.
(gen_formal_types_die, gen_decl_die): Adjust usage of
gen_formal_parameter_die.
(gen_subprogram_die): Represent each function parameter pack by a
DW_TAG_formal_parameter_pack DIE. Arguments of of the pack are
represented by usual DW_TAG_formal_parameter DIEs that are children
of the DW_TAG_formal_parameter_pack DIE. Remove references to
____builtin_va_alist decls as no part of the compiler uses those
anymore.
* langhooks.h (struct lang_hooks_for_decls): Add
function_parm_expanded_from_pack_p, get_generic_function_decl
and function_parameter_pack_p hooks. Fix comment for
get_innermost_generic_parms hook.
* langhooks-def.h (LANG_HOOKS_FUNCTION_PARAMETER_PACK_P,
LANG_HOOKS_FUNCTION_PARM_EXPANDED_FROM_PACK_P ): Declare new hook
macros and use them to initialize lang_hook.
gcc/cp/ChangeLog:
* cp-lang.c (LANG_HOOKS_FUNCTION_PARAMETER_PACK_P,
LANG_HOOKS_FUNCTION_PARM_EXPANDED_FROM_PACK_P,
LANG_HOOKS_GET_GENERIC_FUNCTION_DECL): Initialize these
hooks for the c++ FE.
* cp-tree.h (function_parameter_pack_p, get_function_template_decl,
function_parameter_expanded_from_pack_p): Declare ...
* pt.c (function_parameter_pack_p, get_function_template_decl,
function_parameter_expanded_from_pack_p): ... new hooks.
(get_template_info): Make this more robust.
(template_args_variadic_p, make_ith_pack_parameter_name): Add a new
line between comment and function.
(get_template_argument_pack_elems): Fix comment.
(tsubst_decl): Arguments of function parameter packs are not
parameter packs themselves.
gcc/testsuite/ChangeLog:
* g++.dg/debug/dwarf2/template-func-params-4.C: Adjust.
* g++.dg/debug/dwarf2/template-func-params-7.C: Likewise.
* g++.dg/debug/dwarf2/template-params-4.C: Likewise.
From-SVN: r152043
ChangeLog:
PR debug/30161
* include/dwarf2.h (enum dwarf_tag): Added
DW_TAG_GNU_template_template_param
(enum dwarf_attribute): Added DW_AT_GNU_template_name.
gcc/ChangeLog:
PR debug/30161
* cgraph.h (cgraph_get_node): Declare ...
* cgraph.c (cgraph_get_node): ... new function.
* dwarf2out.c (gen_generic_params_dies,
generic_parameter_die, tree_add_const_value_attribute_for_decl,
make_ith_pack_parameter_name,
append_entry_to_tmpl_value_parm_die_table,
gen_remaining_tmpl_value_param_die_attribute): New functions.
(gen_subprogram_die): Generate debug info for template parameters
if debug info level is higher than DINFO_LEVEL_TERSE.
Use tree_add_const_value_attribute_for_decl instead of
tree_add_const_value_attribute.
(gen_const_die): Use tree_add_const_value_attribute_for_decl
instead of tree_add_const_value_attribute.
(gen_struct_or_union_type_die): Generate debug
info for template parameters if debug info level is higher than
DINFO_LEVEL_TERSE.
(tree_add_const_value_attribute): Handle integral and pointer
constants. Update comment.
(dwarf_tag_name): Support DW_TAG_GNU_template_template_param.
(dwarf_attr_name): Support DW_AT_GNU_template_name.
(reference_to_unused): Fix thinko. Remove redundant predicates from
tests.
(tree_add_const_value_attribute): Make this work for constant
expressions only.
tree_add_const_value_attribute_for_decl is to be used for variable
DECLs now.
(add_location_or_const_value_attribute): Use
tree_add_const_value_attribute_for_decl now.
(dwarf2out_finish): Emit the DW_AT_const_value attribute of
DW_TAG_template_value_param DIEs after function DIEs have been
emitted.
* langhooks.h (lang_hooks_for_types): Add
get_argument_pack_elems.
(lang_hooks_for_decls): Add generic_generic_parameter_decl_p.
(lang_hooks): Added get_innermost_generic_parms,
get_innermost_generic_args.
* langhooks-def.h (LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS,
LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS,
LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS,
LANG_HOOKS_GENERIC_GENERIC_PARAMETER_DECL_P): New language hooks.
gcc/cp/ChangeLog:
PR debug/30161
* cp-tree.h (get_template_info): Parameter should be const.
(CLASSTYPE_SPECIALIZATION_OF_PRIMARY_TEMPLATE_P): Fix typo.
(get_template_argument_pack_elems,
get_primary_template_innermost_parameters,
get_template_innermost_arguments, template_template_parameter_p):
Declare ...
* pt.c (get_template_argument_pack_elems,
get_template_innermost_parameters, get_template_innermost_arguments,
template_template_parameter_p):
... New C++ front end implementation of new language hooks.
(primary_template_instantiation_p): New private helper.
(make_ith_pack_parameter_name): Use snprintf and strnlen instead of
printf and strlen.
(get_template_info): Const-ify parameter.
* cp-lang.c (LANG_HOOKS_GET_INNERMOST_GENERIC_PARMS,
LANG_HOOKS_GET_INNERMOST_GENERIC_ARGS,
LANG_HOOKS_GET_ARGUMENT_PACK_ELEMS,
LANG_HOOKS_GENERIC_TYPE_PARAMETER_DECL_P): Initialize these
interfaces for the C++ front-end.
gcc/testsuite/ChangeLog:
PR debug/30161
* g++.dg/debug/dwarf2/template-params-1.C: New test.
* g++.dg/debug/dwarf2/template-params-2.C: Likewise.
* g++.dg/debug/dwarf2/template-params-3.C: Likewise.
* g++.dg/debug/dwarf2/template-params-4.C: Likewise.
* g++.dg/debug/dwarf2/template-params-5.C: Likewise.
* g++.dg/debug/dwarf2/template-params-6.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-1.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-2.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-3.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-4.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-5.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-6.C: Likewise.
* g++.dg/debug/dwarf2/template-func-params-7.C: Likewise.
From-SVN: r151249
