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dw2-line-number-zero.exp revision 1.1 
      1 # Copyright 2020 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 load_lib dwarf.exp
     16 
     17 # This test can only be run on targets which support DWARF-2 and use gas.
     18 if {![dwarf2_support]} {
     19     verbose "Skipping dw2-line-number-zero test."
     20     return 0
     21 }
     22 
     23 # The .c files use __attribute__.
     24 if [get_compiler_info] {
     25     return -1
     26 }
     27 if !$gcc_compiled {
     28     verbose "Skipping dw2-line-number-zero test."
     29     return 0
     30 }
     31 
     32 standard_testfile .c dw2-line-number-zero-dw.S
     33 
     34 set asm_file [standard_output_file $srcfile2]
     35 Dwarf::assemble $asm_file {
     36     declare_labels Llines
     37     global srcdir subdir srcfile
     38 
     39     cu {} {
     40 	compile_unit {
     41 	    {language @DW_LANG_C}
     42 	    {name dw2-line-number-zero.c}
     43 	    {stmt_list $Llines DW_FORM_sec_offset}
     44 	} {
     45 	    subprogram {
     46 		{external 1 flag}
     47 		{MACRO_AT_func {main}}
     48 	    }
     49 	    subprogram {
     50 		{external 1 flag}
     51 		{MACRO_AT_func {bar1}}
     52 	    }
     53 	    subprogram {
     54 		{external 1 flag}
     55 		{MACRO_AT_func {bar2}}
     56 	    }
     57 	}
     58     }
     59 
     60     lines {version 2} Llines {
     61 	include_dir "${srcdir}/${subdir}"
     62 	file_name "$srcfile" 1
     63 
     64 	program {
     65 	    {DW_LNE_set_address bar1_label}
     66 	    {line 27}
     67 	    {DW_LNS_copy}
     68 
     69 	    {DW_LNE_set_address bar1_label_2}
     70 	    {line 29}
     71 	    {DW_LNS_copy}
     72 
     73 	    {DW_LNE_set_address bar1_label_3}
     74 	    {line 0}
     75 	    {DW_LNS_copy}
     76 
     77 	    {DW_LNE_set_address bar1_label_4}
     78 	    {line 33}
     79 	    {DW_LNS_copy}
     80 
     81 	    {DW_LNE_set_address bar1_label_5}
     82 	    {DW_LNE_end_sequence}
     83 
     84 
     85 	    {DW_LNE_set_address bar2_label}
     86 	    {line 41}
     87 	    {DW_LNS_copy}
     88 
     89 	    {DW_LNE_set_address bar2_label_2}
     90 	    {line 43}
     91 	    {DW_LNS_copy}
     92 
     93 	    {DW_LNE_set_address bar2_label_3}
     94 	    {line 0}
     95 	    {DW_LNS_negate_stmt}
     96 	    {DW_LNS_copy}
     97 	    {DW_LNS_negate_stmt}
     98 
     99 	    {DW_LNE_set_address bar2_label_4}
    100 	    {line 47}
    101 	    {DW_LNS_copy}
    102 
    103 	    {DW_LNE_set_address bar2_label_5}
    104 	    {DW_LNE_end_sequence}
    105 	}
    106     }
    107 }
    108 
    109 if { [prepare_for_testing "failed to prepare" ${testfile} \
    110 	  [list $srcfile $asm_file] {nodebug}] } {
    111     return -1
    112 }
    113 
    114 if ![runto_main] {
    115     return -1
    116 }
    117 
    118 gdb_breakpoint "$srcfile:27"
    119 gdb_continue_to_breakpoint "bar1" "\[^\r\n\]*:27\r\n.*"
    120 
    121 gdb_test "n" "foo \\(2\\);" "bar1, 1st next"
    122 gdb_test "n" "foo \\(4\\);" "bar1, 2nd next"
    123 
    124 gdb_breakpoint "$srcfile:41"
    125 gdb_continue_to_breakpoint "bar2" "\[^\r\n\]*:41\r\n.*"
    126 
    127 gdb_test "n" "foo \\(2\\);" "bar2, 1st next"
    128 gdb_test "n" "foo \\(4\\);" "bar2, 2nd next"
    129 
    130 if ![runto_main] {
    131     return -1
    132 }
    133 
    134 gdb_breakpoint "bar1_label_3"
    135 setup_kfail "gdb/nnnnn" *-*-*
    136 gdb_continue_to_breakpoint "bar1_label_3" "bar1 \\(\\)"
    137 
    138 gdb_breakpoint "bar2_label_3"
    139 setup_kfail "gdb/nnnnn" *-*-*
    140 gdb_continue_to_breakpoint "bar2_label_3" "bar2 \\(\\)"
    141