186 lines
5.5 KiB
Text
186 lines
5.5 KiB
Text
# Copyright 2015-2022 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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load_lib dwarf.exp
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# Test DW_TAG_compile_unit with no children and with neither DW_AT_low_pc nor
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# DW_AT_high_pc but with DW_AT_ranges instead.
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# This test can only be run on targets which support DWARF-2 and use gas.
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if {![dwarf2_support]} {
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verbose "Skipping $gdb_test_file_name."
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return 0
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}
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# The .c files use __attribute__.
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if ![is_c_compiler_gcc] {
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verbose "Skipping $gdb_test_file_name."
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return 0
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}
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standard_testfile .c -dw.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 ranges_label
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declare_labels L
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# Find start address and length for our functions.
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set main_func \
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[function_range main [list ${srcdir}/${subdir}/$srcfile]]
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set frame2_func \
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[function_range frame2 [list ${srcdir}/${subdir}/$srcfile]]
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set frame3_func \
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[function_range frame3 [list ${srcdir}/${subdir}/$srcfile]]
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# Very simple info for this test program. We don't care about
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# this information being correct (w.r.t. funtion / argument types)
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# just so long as the compilation using makes use of the
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# .debug_ranges data then the test achieves its objective.
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cu { label cu_label } {
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compile_unit {
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{language @DW_LANG_C}
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{name dw-ranges-base.c}
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{stmt_list $L DW_FORM_sec_offset}
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{ranges ${ranges_label} DW_FORM_sec_offset}
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} {
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subprogram {
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{external 1 flag}
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{name main}
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}
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subprogram {
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{external 1 flag}
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{name frame2}
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}
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subprogram {
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{external 1 flag}
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{name frame3}
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}
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}
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}
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lines {version 2} L {
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include_dir "${srcdir}/${subdir}"
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file_name "$srcfile" 1
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# Generate simple line table program. The line table
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# information contained here is not correct, and we really
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# don't care, just so long as each function has some line
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# table data associated with it. We do make use of the fake
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# line numbers that we pick here in the tests below.
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program {
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DW_LNE_set_address [lindex $main_func 0]
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DW_LNS_advance_line 10
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DW_LNS_copy
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DW_LNS_advance_pc [lindex $main_func 1]
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DW_LNS_advance_line 19
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DW_LNS_copy
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DW_LNE_end_sequence
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DW_LNE_set_address [lindex $frame2_func 0]
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DW_LNS_advance_line 20
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DW_LNS_copy
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DW_LNS_advance_pc [lindex $frame2_func 1]
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DW_LNS_advance_line 29
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DW_LNS_copy
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DW_LNE_end_sequence
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DW_LNE_set_address [lindex $frame3_func 0]
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DW_LNS_advance_line 30
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DW_LNS_copy
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DW_LNS_advance_pc [lindex $frame3_func 1]
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DW_LNS_advance_line 39
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DW_LNS_copy
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DW_LNE_end_sequence
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}
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}
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# Generate ranges data. This is the point of this whole test
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# file, we must have multiple bases specified, so we use a new
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# base for each function.
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ranges {is_64 [is_64_target]} {
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ranges_label: sequence {
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base [lindex $main_func 0]
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range 0 [lindex $main_func 1]
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base [lindex $frame2_func 0]
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range 0 [lindex $frame2_func 1]
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base [lindex $frame3_func 0]
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range 0 [lindex $frame3_func 1]
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}
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}
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aranges {} cu_label {
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arange {} [lindex $main_func 0] [lindex $main_func 1]
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arange {} [lindex $frame2_func 0] [lindex $frame2_func 1]
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arange {} [lindex $frame3_func 0] [lindex $frame3_func 1]
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}
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}
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if { [prepare_for_testing "failed to prepare" ${testfile} \
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[list $srcfile $asm_file] {nodebug}] } {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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# Make use of the line numbers we faked in the .debug_line table above.
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gdb_test "info line main" \
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"Line 11 of .* starts at address .* and ends at .*"
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gdb_test "info line frame2" \
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"Line 21 of .* starts at address .* and ends at .*"
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gdb_test "info line frame3" \
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"Line 31 of .* starts at address .* and ends at .*"
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# Ensure that the line table correctly tracks the end of sequence markers.
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set end_seq_count 0
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set prev -1
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set seq_count 0
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gdb_test_multiple "maint info line-table gdb.dwarf2/dw2-ranges-base.c" \
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"count END markers in line table" {
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-re "^$decimal\[ \t\]+$decimal\[ \t\]+$hex\(\[ \t\]+Y\)? *\r\n" {
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if { $prev != -1 } {
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gdb_assert "$prev == 1" \
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"prev of normal entry at $seq_count is end marker"
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}
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set prev 0
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incr seq_count
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exp_continue
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}
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-re "^$decimal\[ \t\]+END\[ \t\]+$hex\(\[ \t\]+Y\)? *\r\n" {
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if { $prev != -1 } {
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gdb_assert "$prev == 0" \
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"prev of end marker at $seq_count is normal entry"
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}
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set prev 1
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incr seq_count
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incr end_seq_count
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exp_continue
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}
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-re "^\r\n" {
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# Empty lines between tables.
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exp_continue
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}
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-re "^$gdb_prompt $" {
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gdb_assert [expr $end_seq_count == 3] $gdb_test_name
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}
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-re ".*linetable: \\(\\(struct linetable \\*\\) 0x0\\):\r\nNo line table.\r\n" {
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exp_continue
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}
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-re ".*linetable: \\(\\(struct linetable \\*\\) $hex\\):\r\nINDEX\[ \t\]+LINE\[ \t\]+ADDRESS\[ \t\]+IS-STMT\[ \t\]PROLOGUE-END *\r\n" {
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exp_continue
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}
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}
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