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# Copyright 2022 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/>.
# Check that GDB can honor the prologue_end flag the compiler can place
# in the line-table data.
load_lib dwarf.exp
# This test can only be run on targets which support DWARF-2 and use gas.
if {![dwarf2_support]} {
return 0
}
standard_testfile .c .S
set asm_file [standard_output_file $srcfile2]
Dwarf::assemble $asm_file {
global srcdir subdir srcfile srcfile2
declare_labels lines_label
get_func_info main
cu {} {
compile_unit {
{language @DW_LANG_C}
{name dw2-prologue-end.c}
{stmt_list ${lines_label} DW_FORM_sec_offset}
} {
subprogram {
{external 1 flag}
{name main}
{low_pc $main_start addr}
{high_pc "$main_start + $main_len" addr}
}
}
}
lines {version 5} lines_label {
set diridx [include_dir "${srcdir}/${subdir}"]
file_name "$srcfile" $diridx
program {
DW_LNS_set_file $diridx
DW_LNE_set_address $main_start
line [gdb_get_line_number "main prologue"]
DW_LNS_copy
DW_LNE_set_address main_label
line [gdb_get_line_number "main assign m"]
DW_LNS_copy
DW_LNE_set_address main_assign_n
line [gdb_get_line_number "main assign n"]
DW_LNS_copy
DW_LNE_set_address main_end_prologue
line [gdb_get_line_number "main assign o"]
DW_LNS_set_prologue_end
DW_LNS_copy
DW_LNE_set_address main_end
line [gdb_get_line_number "main end"]
DW_LNS_copy
DW_LNE_end_sequence
}
}
}
if { [prepare_for_testing "failed to prepare" ${testfile} \
[list $srcfile $asm_file] {nodebug}] } {
return -1
}
if ![runto_main] {
return -1
}
set prologue_end_line [gdb_get_line_number "main assign o"]
gdb_test "frame" ".*main \\\(\\\) at \[^\r\n\]*:$prologue_end_line\r\n.*"
with_test_prefix "ignore-prologue-end" {
clean_restart $binfile
gdb_test_no_output "maintenance set ignore-prologue-end-flag on"
if ![runto_main] {
return -1
}
# If we ignore the prologue-end flag, we should stop at the first statement
# of main which assigns m.
set prologue_end_line [gdb_get_line_number "main assign m"]
gdb_test "frame" ".*main \\\(\\\) at \[^\r\n\]*:$prologue_end_line\r\n.*"
}
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