1# Copyright 2023 Free Software Foundation, Inc. 2 3# This program is free software; you can redistribute it and/or modify 4# it under the terms of the GNU General Public License as published by 5# the Free Software Foundation; either version 3 of the License, or 6# (at your option) any later version. 7# 8# This program is distributed in the hope that it will be useful, 9# but WITHOUT ANY WARRANTY; without even the implied warranty of 10# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 11# GNU General Public License for more details. 12# 13# You should have received a copy of the GNU General Public License 14# along with this program. If not, see <http://www.gnu.org/licenses/>. 15 16# Check that prologue analysis in foo is correct in the presence of a 17# prologue_end marker in immediately following function bar. 18 19load_lib dwarf.exp 20 21# This test can only be run on targets which support DWARF-2 and use gas. 22if {![dwarf2_support]} { 23 return 0 24} 25 26standard_testfile .c .S 27 28set asm_file [standard_output_file $srcfile2] 29Dwarf::assemble $asm_file { 30 global srcdir subdir srcfile srcfile2 31 declare_labels lines_label 32 33 cu {} { 34 compile_unit { 35 {language @DW_LANG_C} 36 {name dw2-prologue-end.c} 37 {stmt_list ${lines_label} DW_FORM_sec_offset} 38 } { 39 subprogram { 40 {external 1 flag} 41 {name foo} 42 {low_pc foo_label addr} 43 {high_pc foo_end addr} 44 } 45 subprogram { 46 {external 1 flag} 47 {name bar} 48 {low_pc bar_label addr} 49 {high_pc bar_end addr} 50 } 51 } 52 } 53 54 lines {version 5} lines_label { 55 set diridx [include_dir "${srcdir}/${subdir}"] 56 file_name "$srcfile" $diridx 57 58 program { 59 DW_LNS_set_file $diridx 60 61 DW_LNE_set_address foo_label 62 line [gdb_get_line_number "Foo body"] 63 DW_LNS_copy 64 65 DW_LNE_set_address bar_label 66 DW_LNS_set_prologue_end 67 line [gdb_get_line_number "Bar body"] 68 DW_LNS_copy 69 70 DW_LNE_set_address bar_end 71 DW_LNE_end_sequence 72 } 73 } 74} 75 76if { [prepare_for_testing "failed to prepare" ${testfile} \ 77 [list $srcfile $asm_file] {nodebug}] } { 78 return -1 79} 80 81# Don't runto main here, otherwise the following doesn't 82# function as regression test for PR30369. 83 84# Get the "break foo" address. 85 86set break_addr "" 87gdb_test_multiple "break foo" "" { 88 -re -wrap "at ($hex):\[^\r\n\]*" { 89 set break_addr $expect_out(1,string) 90 pass $gdb_test_name 91 } 92} 93 94if { $break_addr == "" } { 95 return 96} 97 98# Get the "foo_label" address. 99 100set foo_label_addr "" 101gdb_test_multiple "print /x &foo_label" "" { 102 -re -wrap "= ($hex)" { 103 set foo_label_addr $expect_out(1,string) 104 pass $gdb_test_name 105 } 106} 107 108if { $foo_label_addr == "" } { 109 return 110} 111 112# Check that bar immediately follows foo. Otherwise the following doesn't 113# function as regression test for PR30369. 114 115gdb_test "print &foo_end == &bar_label" " = 1" 116 117# Check that the breakpoint is set at the expected address. Regression test 118# for PR30369. 119 120gdb_assert { $break_addr == $foo_label_addr } 121