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https://sourceware.org/git/binutils-gdb.git
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0f91492fcf
The dwarf standard requires that every line number program sequence ends with a DW_LNE_end_sequence instruction. Enforce this in the dwarf assembler for the last sequence in a line number program (we have no means to enforce this for earlier sequences), and fix a few test-case that don't have it. Tested on aarch64-linux. PR testsuite/31618 Bug: https://sourceware.org/bugzilla/show_bug.cgi?id=31618
316 lines
9.5 KiB
Plaintext
316 lines
9.5 KiB
Plaintext
# Copyright 2007-2024 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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load_lib dwarf.exp
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# This test can only be run on targets which support DWARF-2 and use gas.
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require dwarf2_support
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standard_testfile .c .S
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set asm_file [standard_output_file $srcfile2]
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Dwarf::assemble $asm_file {
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global srcdir subdir srcfile srcfile2
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declare_labels lines_label
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get_func_info main
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cu {} {
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compile_unit {
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{language @DW_LANG_C}
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{name $srcfile}
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{stmt_list ${lines_label} DW_FORM_sec_offset}
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} {
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declare_labels integer_label
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set int_size [get_sizeof "int" 4]
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integer_label: DW_TAG_base_type {
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{DW_AT_byte_size $int_size DW_FORM_sdata}
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{DW_AT_encoding @DW_ATE_signed}
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{DW_AT_name int}
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}
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DW_TAG_subprogram {
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{external 1 flag}
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{name main}
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{low_pc $main_start addr}
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{high_pc "$main_start + $main_len" addr}
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}
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DW_TAG_variable {
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{DW_AT_name file_locno_resolvable}
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{DW_AT_type :$integer_label}
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}
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DW_TAG_variable {
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{DW_AT_name file_locno_unresolvable}
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{DW_AT_type :$integer_label}
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}
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DW_TAG_variable {
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{DW_AT_name file_locempty_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name file_locempty_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name file_locaddr_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol file_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name file_locaddr_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol file_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locno_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locno_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locempty_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locempty_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locaddr_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol file_extern_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name file_extern_locaddr_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol file_extern_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locno_resolvable}
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{DW_AT_type :$integer_label}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locno_unresolvable}
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{DW_AT_type :$integer_label}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locempty_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locempty_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locaddr_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol main_local_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name main_local_locaddr_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol main_local_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locno_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locno_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locempty_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locempty_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {} DW_FORM_block1}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locaddr_resolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol main_extern_locaddr_resolvable]
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} SPECIAL_expr}
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}
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DW_TAG_variable {
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{DW_AT_name main_extern_locaddr_unresolvable}
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{DW_AT_type :$integer_label}
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{DW_AT_external 1 flag}
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{DW_AT_location {
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DW_OP_addr [gdb_target_symbol main_extern_locaddr_resolvable]
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} SPECIAL_expr}
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}
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}
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}
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lines {version 5} lines_label {
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set diridx [include_dir "${srcdir}/${subdir}"]
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file_name "$srcfile" $diridx
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program {
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DW_LNS_set_file $diridx
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DW_LNE_set_address $main_start
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line [gdb_get_line_number "main start"]
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DW_LNS_set_prologue_end
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DW_LNS_copy
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DW_LNE_set_address $main_end
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DW_LNE_end_sequence
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}
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} [list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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# Symbols have the form: {file,main}_loc{addr,empty,no}_{,un}resolvable
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# file: Symbol DIE is placed in DW_TAG_compile_unit.
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# main: Symbol DIE is placed in DW_TAG_subprogram.
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# locaddr: DW_AT_location is using DW_FORM_block DW_OP_addr <addr>.
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# locempty: DW_AT_location has zero DW_FORM_block size.
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# locno: DW_AT_location is not present.
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# resolvable: .symtab entry exists for this symbol name.
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# unresolvable: .symtab entry does not exist for this symbol name.
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# DW_AT_declaration is not present in any of these DIEs.
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proc file_symbols {type} {
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with_test_prefix "$type" {
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global gdb_prompt
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gdb_test "print file_locaddr_resolvable" "= 1234567890"
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gdb_test "ptype file_locaddr_resolvable" "type = int"
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gdb_test "print file_locaddr_unresolvable" "= 1234567890"
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gdb_test "ptype file_locaddr_unresolvable" "type = int"
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gdb_test "print file_locempty_resolvable" "= <optimized out>"
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gdb_test "ptype file_locempty_resolvable" "type = int"
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gdb_test "print file_locempty_unresolvable" "= <optimized out>"
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gdb_test "ptype file_locempty_unresolvable" "type = int"
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gdb_test "print file_locno_resolvable" "= <optimized out>"
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gdb_test "ptype file_locno_resolvable" "type = int"
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gdb_test "print file_locno_unresolvable" "= <optimized out>"
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gdb_test "ptype file_locno_unresolvable" "type = int"
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gdb_test "print file_extern_locaddr_resolvable" "= 1234567890"
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gdb_test "ptype file_extern_locaddr_resolvable" "type = int"
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gdb_test "print file_extern_locaddr_unresolvable" "= 1234567890"
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gdb_test "ptype file_extern_locaddr_unresolvable" "type = int"
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gdb_test "print file_extern_locempty_resolvable" "= <optimized out>"
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gdb_test "ptype file_extern_locempty_resolvable" "type = int"
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gdb_test "print file_extern_locempty_unresolvable" "= <optimized out>"
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gdb_test "ptype file_extern_locempty_unresolvable" "type = int"
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gdb_test "print file_extern_locno_resolvable" "= 1234567890"
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gdb_test "ptype file_extern_locno_resolvable" "type = int"
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# `print file_extern_locno_unresolvable' currently prints
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# Address of symbol "file_extern_locno_unresolvable" is unknown.
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# As DW_AT_declaration is not present in this DIE
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# it should print <optimized out>. As usefulness of such DIE is not
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# clear its resolution is not being tested.
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}
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}
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file_symbols no-run
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if ![runto_main] {
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return -1
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}
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file_symbols in-main
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gdb_test "print main_local_locaddr_resolvable" "= 1234567890"
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gdb_test "ptype main_local_locaddr_resolvable" "type = int"
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gdb_test "print main_local_locaddr_unresolvable" "= 1234567890"
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gdb_test "ptype main_local_locaddr_unresolvable" "type = int"
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gdb_test "print main_local_locempty_resolvable" "= <optimized out>"
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gdb_test "ptype main_local_locempty_resolvable" "type = int"
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gdb_test "print main_local_locempty_unresolvable" "= <optimized out>"
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gdb_test "ptype main_local_locempty_unresolvable" "type = int"
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gdb_test "print main_local_locno_resolvable" "= <optimized out>"
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gdb_test "ptype main_local_locno_resolvable" "type = int"
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gdb_test "print main_local_locno_unresolvable" "= <optimized out>"
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gdb_test "ptype main_local_locno_unresolvable" "type = int"
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gdb_test "print main_extern_locaddr_resolvable" "= 1234567890"
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gdb_test "ptype main_extern_locaddr_resolvable" "type = int"
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gdb_test "print main_extern_locaddr_unresolvable" "= 1234567890"
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gdb_test "ptype main_extern_locaddr_unresolvable" "type = int"
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gdb_test "print main_extern_locempty_resolvable" "= <optimized out>"
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gdb_test "ptype main_extern_locempty_resolvable" "type = int"
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gdb_test "print main_extern_locempty_unresolvable" "= <optimized out>"
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gdb_test "ptype main_extern_locempty_unresolvable" "type = int"
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gdb_test "print main_extern_locno_resolvable" "= 1234567890"
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gdb_test "ptype main_extern_locno_resolvable" "type = int"
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# For `main_extern_locno_unresolvable' see `file_extern_locno_unresolvable'.
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