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4a94e36819
This commit brings all the changes made by running gdb/copyright.py as per GDB's Start of New Year Procedure. For the avoidance of doubt, all changes in this commits were performed by the script.
125 lines
3.5 KiB
Plaintext
125 lines
3.5 KiB
Plaintext
# Copyright 2020-2022 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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# Test unwinding when we have a frame inlined in the outer frame (in the sense
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# of frame.c:outer_frame_id).
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#
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# The conditions required to reproduce the original issue are:
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#
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# 1. Have an outer frame whose DWARF CFI explicitly says that the frame return
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# address is undefined.
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# 2. A frame inlined in this other frame.
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#
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# Because of (1), the test has to be written in assembly with explicit CFI
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# directives.
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# Check if starti command is supported.
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require use_gdb_stub 0
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load_lib dwarf.exp
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if {![dwarf2_support]} {
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return 0
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}
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standard_testfile .S
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set dwarf_asm [standard_output_file dwarf-asm.S]
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Dwarf::assemble $dwarf_asm {
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global srcfile
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declare_labels foo_subprogram bar_subprogram
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declare_labels stmt_list
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# See the comment in the .S file for the equivalent C program this is meant
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# to represent.
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cu { label cu_label addr_size 4 } {
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DW_TAG_compile_unit {
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{DW_AT_name $srcfile}
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{DW_AT_stmt_list $stmt_list DW_FORM_sec_offset}
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{DW_AT_language @DW_LANG_C99}
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{DW_AT_low_pc __cu_low_pc DW_FORM_addr}
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{DW_AT_high_pc __cu_high_pc DW_FORM_addr}
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} {
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DW_TAG_subprogram {
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{DW_AT_name "_start"}
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{DW_AT_low_pc __start_low_pc DW_FORM_addr}
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{DW_AT_high_pc __start_high_pc DW_FORM_addr}
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} {
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DW_TAG_inlined_subroutine {
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{DW_AT_abstract_origin :$foo_subprogram}
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{DW_AT_low_pc __foo_low_pc DW_FORM_addr}
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{DW_AT_high_pc __foo_high_pc DW_FORM_addr}
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{DW_AT_call_file 1 DW_FORM_data1}
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{DW_AT_call_line 13 DW_FORM_data1}
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} {
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DW_TAG_inlined_subroutine {
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{DW_AT_abstract_origin :$bar_subprogram}
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{DW_AT_low_pc __bar_low_pc DW_FORM_addr}
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{DW_AT_high_pc __bar_high_pc DW_FORM_addr}
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{DW_AT_call_file 1 DW_FORM_data1}
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{DW_AT_call_line 7 DW_FORM_data1}
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}
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}
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}
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foo_subprogram: DW_TAG_subprogram {
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{DW_AT_name "foo"}
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{DW_AT_prototyped 1 DW_FORM_flag_present}
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{DW_AT_inline 0x1 DW_FORM_data1}
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}
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bar_subprogram: DW_TAG_subprogram {
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{DW_AT_name "bar"}
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{DW_AT_prototyped 1 DW_FORM_flag_present}
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{DW_AT_inline 0x1 DW_FORM_data1}
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}
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}
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}
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lines { } stmt_list {
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global srcdir subdir srcfile
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include_dir "/some/directory"
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file_name "/some/directory/file.c" 0
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}
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aranges {} cu_label {
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arange {} __cu_low_pc __cu_high_pc
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}
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}
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if { [build_executable ${testfile}.exp ${testfile} "$srcfile $dwarf_asm" \
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{additional_flags=-nostdlib additional_flags=-static}] != 0 } {
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untested "failed to compile"
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return
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}
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clean_restart $binfile
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if { [gdb_starti_cmd] != 0 } {
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fail "failed to run to first instruction"
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return
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}
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gdb_test "" "Program stopped.*" "starti prompt"
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gdb_test "frame" "in _start .*"
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gdb_test "stepi" "in foo .*" "step into foo"
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gdb_test "stepi" "in bar .*" "step into bar"
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gdb_test "stepi" "in foo .*" "step back into foo"
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gdb_test "stepi" "in _start .*" "step back into _start"
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