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# Copyright 2020 Free Software Foundation, Inc.
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
# Setup a line table where:
#
# | Addr | File | Line | Stmt | Inline |
# |------|------|------|------|--------|
# | 1 | 1 | 16 | Y | |
# | 2 | 1 | 17 | Y | |
# | 3 | 2 | 21 | Y | X |
# | 4 | 2 | 22 | Y | X |
# | 4 | 1 | 18 | N | X |
# | 5 | 1 | 19 | Y | |
# | 6 | 1 | 20 | Y | |
# | 7 | 1 | END | Y | |
# |------|------|------|------|--------|
#
#
# Place the first brekpoint at file 2, line 22 and a second breakpoint
# at file 1, line 19. A third breakpoint is placed at file 1, line
# 18, but as this line table entry will have been discarded[1] the
# third breakpoint will actually be placed at the same location as the
# second breakpoint.
#
# This test is designed to test GDB's internal behaviour with respect
# to discarding particular line table entries. GCC and DWARF are
# starting to introduce the idea of line table views. As the views
# information becomes better supported within GDB it is likely that
# this will become out of date. This is fine, the test will have
# served its purpose by that point and can be deleted.
#
# [1] The entry for file 1, line 18 is discarded because it is at the
# same address as the previous entry, but the previous entry is-stmt,
# while line 18 is a non-stmt.
load_lib dwarf.exp
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
return 0
}
# The .c files use __attribute__.
if [get_compiler_info] {
return -1
}
if !$gcc_compiled {
return 0
}
standard_testfile dw2-inline-header-lbls.c dw2-inline-header.S \
dw2-inline-header.c dw2-inline-header.h
set build_options {nodebug optimize=-O1}
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
global srcdir subdir srcfile srcfile3 srcfile4
global build_options
declare_labels lines_label callee_subprog_label
get_func_info main $build_options
cu {} {
compile_unit {
{producer "gcc" }
{language @DW_LANG_C}
{name ${srcfile3}}
{low_pc 0 addr}
{stmt_list ${lines_label} DW_FORM_sec_offset}
} {
callee_subprog_label: subprogram {
{external 1 flag}
{name callee}
{inline 3 data1}
}
subprogram {
{external 1 flag}
{name main}
{low_pc $main_start addr}
{high_pc "$main_start + $main_len" addr}
} {
inlined_subroutine {
{abstract_origin %$callee_subprog_label}
{low_pc line_label_3 addr}
{high_pc line_label_5 addr}
{call_file 1 data1}
{call_line 18 data1}
}
}
}
}
lines {version 2 default_is_stmt 1} lines_label {
include_dir "${srcdir}/${subdir}"
file_name "$srcfile3" 1
file_name "$srcfile4" 1
program {
{DW_LNE_set_address line_label_1}
{DW_LNS_advance_line 15}
{DW_LNS_copy}
{DW_LNE_set_address line_label_2}
{DW_LNS_advance_line 1}
{DW_LNS_copy}
{DW_LNS_set_file 2}
{DW_LNE_set_address line_label_3}
{DW_LNS_advance_line 4}
{DW_LNS_copy}
{DW_LNE_set_address line_label_4}
{DW_LNS_advance_line 1}
{DW_LNS_copy}
{DW_LNS_advance_line -4}
{DW_LNS_set_file 1}
{DW_LNS_negate_stmt}
{DW_LNS_copy}
{DW_LNE_set_address line_label_5}
{DW_LNS_advance_line 1}
{DW_LNS_negate_stmt}
{DW_LNS_copy}
{DW_LNE_set_address line_label_6}
{DW_LNS_advance_line 1}
{DW_LNS_copy}
{DW_LNE_set_address line_label_7}
{DW_LNE_end_sequence}
}
}
}
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $asm_file] $build_options] } {
return -1
}
if ![runto_main] {
return -1
}
# Delete all breakpoints so that the output of "info breakpoints"
# below will only contain a single breakpoint.
delete_breakpoints
# Place a breakpoint within the function in the header file.
gdb_breakpoint "${srcfile4}:22"
# Check that the breakpoint was placed where we expected. It should
# appear at the requested line. When the bug in GDB was present the
# breakpoint would be placed on one of the following lines instead.
gdb_test "info breakpoints" \
".* in callee at \[^\r\n\]+${srcfile4}:22\\y.*" \
"check for breakpoint at ${srcfile4}"
# Delete all breakpoints so that the output of "info breakpoints"
# below will only contain a single breakpoint.
delete_breakpoints
# Place a breakpoint within the function in the header file.
gdb_breakpoint "${srcfile3}:19"
# Check that the breakpoint was placed where we expected. It should
# appear at the requested line. When the bug in GDB was present the
# breakpoint would be placed on one of the following lines instead.
gdb_test "info breakpoints" \
".* in main at \[^\r\n\]+${srcfile3}:19\\y.*" \
"check for breakpoint at ${srcfile3}"
# Line table entry for line 18 will have been discarded, so this
# brekpoint will be at the same location as line 19.
gdb_test "break ${srcfile3}:18" \
"Note: breakpoint $decimal also set at pc $hex.*"
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