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| 1 | +# Copyright 2018-2019 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 | +load_lib dwarf.exp |
| 17 | + |
| 18 | +# Test that psymbols are made when DW_AT_ranges is used. |
| 19 | + |
| 20 | +# This test can only be run on targets which support DWARF-2 and use gas. |
| 21 | +if {![dwarf2_support]} { |
| 22 | + unsupported "dwarf2 support required for this test" |
| 23 | + return 0 |
| 24 | +} |
| 25 | + |
| 26 | +if [get_compiler_info] { |
| 27 | + return -1 |
| 28 | +} |
| 29 | +if !$gcc_compiled { |
| 30 | + unsupported "gcc required for this test" |
| 31 | + return 0 |
| 32 | +} |
| 33 | + |
| 34 | +standard_testfile dw2-ranges-main.c dw2-ranges-psym.c dw2-ranges-psym-dw.S |
| 35 | + |
| 36 | +# We need to know the size of integer and address types in order to |
| 37 | +# write some of the debugging info we'd like to generate. |
| 38 | +# |
| 39 | +# For that, we ask GDB by debugging our test program. Any program |
| 40 | +# would do, but since we already have it specifically for this |
| 41 | +# testcase, might as well use that. |
| 42 | + |
| 43 | +if { [prepare_for_testing "failed to prepare" ${testfile} \ |
| 44 | + [list ${srcfile} ${srcfile2}]] } { |
| 45 | + return -1 |
| 46 | +} |
| 47 | + |
| 48 | +set asm_file [standard_output_file $srcfile3] |
| 49 | +Dwarf::assemble $asm_file { |
| 50 | + global srcdir subdir srcfile srcfile2 |
| 51 | + declare_labels integer_label volatile_label func_ranges_label cu_ranges_label |
| 52 | + set int_size [get_sizeof "int" 4] |
| 53 | + |
| 54 | + # Find start address and length for our functions. |
| 55 | + set sources [list ${srcdir}/${subdir}/$srcfile ${srcdir}/${subdir}/$srcfile2] |
| 56 | + |
| 57 | + lassign [function_range foo $sources] \ |
| 58 | + foo_start foo_len |
| 59 | + set foo_end "$foo_start + $foo_len" |
| 60 | + |
| 61 | + lassign [function_range foo_low $sources] \ |
| 62 | + foo_low_start foo_low_len |
| 63 | + set foo_low_end "$foo_low_start + $foo_low_len" |
| 64 | + |
| 65 | + lassign [function_range bar $sources] \ |
| 66 | + bar_start bar_len |
| 67 | + set bar_end "$bar_start + $bar_len" |
| 68 | + |
| 69 | + lassign [function_range baz $sources] \ |
| 70 | + baz_start baz_len |
| 71 | + set baz_end "$baz_start + $baz_len" |
| 72 | + |
| 73 | + cu {} { |
| 74 | + compile_unit { |
| 75 | + {language @DW_LANG_C} |
| 76 | + {name dw-ranges-psym.c} |
| 77 | + {low_pc 0 addr} |
| 78 | + {ranges ${cu_ranges_label} DW_FORM_sec_offset} |
| 79 | + } { |
| 80 | + integer_label: DW_TAG_base_type { |
| 81 | + {DW_AT_byte_size $int_size DW_FORM_sdata} |
| 82 | + {DW_AT_encoding @DW_ATE_signed} |
| 83 | + {DW_AT_name integer} |
| 84 | + } |
| 85 | + volatile_label: DW_TAG_volatile_type { |
| 86 | + {type :$integer_label} |
| 87 | + } |
| 88 | + subprogram { |
| 89 | + {external 1 flag} |
| 90 | + {name someothername} |
| 91 | + {ranges ${func_ranges_label} DW_FORM_sec_offset} |
| 92 | + } |
| 93 | + subprogram { |
| 94 | + {external 1 flag} |
| 95 | + {name bar} |
| 96 | + {low_pc $bar_start addr} |
| 97 | + {high_pc $bar_len DW_FORM_data4} |
| 98 | + } |
| 99 | + subprogram { |
| 100 | + {external 1 flag} |
| 101 | + {name baz} |
| 102 | + {low_pc $baz_start addr} |
| 103 | + {high_pc $baz_len DW_FORM_data4} |
| 104 | + } |
| 105 | + } |
| 106 | + } |
| 107 | + |
| 108 | + # Generate ranges data. |
| 109 | + ranges {is_64 [is_64_target]} { |
| 110 | + func_ranges_label: sequence { |
| 111 | + {range {$foo_start } $foo_end} |
| 112 | + {range {$foo_low_start} $foo_low_end} |
| 113 | + } |
| 114 | + cu_ranges_label: sequence { |
| 115 | + {range {$foo_start } $foo_end} |
| 116 | + {range {$foo_low_start} $foo_low_end} |
| 117 | + {range {$bar_start} $bar_end} |
| 118 | + {range {$baz_start} $baz_end} |
| 119 | + } |
| 120 | + } |
| 121 | +} |
| 122 | + |
| 123 | +if { [prepare_for_testing "failed to prepare" ${testfile} \ |
| 124 | + [list $srcfile $srcfile2 $asm_file] {nodebug}] } { |
| 125 | + return -1 |
| 126 | +} |
| 127 | + |
| 128 | +if ![runto_main] { |
| 129 | + return -1 |
| 130 | +} |
| 131 | + |
| 132 | +# "someothername" should be put into the partial symbol table, but |
| 133 | +# there was a bug causing functions using DW_AT_ranges not to be. |
| 134 | +# Note we use a name that is very different from the linkage name, in |
| 135 | +# order to not set the breakpoint via minsyms. |
| 136 | +gdb_test "break someothername" \ |
| 137 | + "Breakpoint.*at.*" \ |
| 138 | + "break someothername" |
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