gdb/testsuite/gdb.base/max-depth.exp.tcl

   1 # Copyright 2019-2021 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 # Tests GDB's handling of 'set print max-depth'.
  17
  18 proc compile_and_run_tests { lang } {
  19     global testfile
  20     global srcfile
  21     global binfile
  22     global hex
  23
  24     standard_testfile max-depth.c
  25
  26     # Create the additional flags.
  27     set flags "debug"
  28     lappend flags $lang
  29     if { "$lang" == "c++" } {
  30         lappend flags "additional_flags=-std=c++11"
  31     }
  32
  33     if { [prepare_for_testing "failed to prepare" "${binfile}" "${srcfile}" "${flags}"] } {
  34         return 0
  35     }
  36
  37     # Advance to main.
  38     if { ![runto_main] } then {
  39         fail "can't run to main"
  40         return 0
  41     }
  42
  43     # The max-depth setting has no effect as the anonymous scopes are
  44     # ignored and the members are aggregated into the parent scope.
  45     gdb_print_expr_at_depths "s1" {"{...}" \
  46                                        "{x = 0, y = 0}"\
  47                                        "{x = 0, y = 0}"}
  48
  49     gdb_print_expr_at_depths "s2" {"{...}" \
  50                                        "{x = 0, y = 0, {z = 0, a = 0}}" \
  51                                        "{x = 0, y = 0, {z = 0, a = 0}}"}
  52
  53     gdb_print_expr_at_depths "s3" {"{...}" \
  54                                        "{x = 0, y = 0, {z = 0, a = 0, {b = 0, c = 0}}}" \
  55                                        "{x = 0, y = 0, {z = 0, a = 0, {b = 0, c = 0}}}" \
  56                                        "{x = 0, y = 0, {z = 0, a = 0, {b = 0, c = 0}}}"}
  57
  58     # Increasing max-depth unfurls more of the object.
  59     gdb_print_expr_at_depths "s4" {"{...}" \
  60                                        "{x = 0, y = 0, l1 = {...}}" \
  61                                        "{x = 0, y = 0, l1 = {x = 0, y = 0, l2 = {...}}}" \
  62                                        "{x = 0, y = 0, l1 = {x = 0, y = 0, l2 = {x = 0, y = 0}}}"}
  63
  64     # Check handling of unions, in this case 'raw' is printed instead of
  65     # just {...} as this is not useful.
  66     gdb_print_expr_at_depths "s5" {"{...}" \
  67                                        "{{raw = {...}, {x = 0, y = 0, z = 0}}}" \
  68                                        "{{raw = \\{0, 0, 0\\}, {x = 0, y = 0, z = 0}}}"}
  69
  70     # Check handling of typedefs.
  71     gdb_print_expr_at_depths "s6" {"{...}" \
  72                                        "{{raw = {...}, {x = 0, y = 0, z = 0}}}" \
  73                                        "{{raw = \\{0, 0, 0\\}, {x = 0, y = 0, z = 0}}}"}
  74
  75     # Multiple anonymous structures in parallel.
  76     gdb_print_expr_at_depths "s7" {"{...}" \
  77                                        "{{x = 0, y = 0}, {z = 0, a = 0}, {b = 0, c = 0}}" \
  78                                        "{{x = 0, y = 0}, {z = 0, a = 0}, {b = 0, c = 0}}"}
  79
  80     # Flip flop between named and anonymous.  Expected to unfurl to the
  81     # first non-anonymous type.
  82     gdb_print_expr_at_depths "s8" {"{...}" \
  83                                        "{x = 0, y = 0, d1 = {...}}" \
  84                                        "{x = 0, y = 0, d1 = {z = 0, a = 0, {b = 0, c = 0}}}"}
  85
  86     # Imbalanced tree, this will unfurl one size more than the other as
  87     # one side has more anonymous levels.
  88     gdb_print_expr_at_depths "s9" {"{...}" \
  89                                        "{x = 0, y = 0, {k = 0, j = 0, d1 = {...}}, d2 = {...}}" \
  90                                        "{x = 0, y = 0, {k = 0, j = 0, d1 = {z = 0, a = 0, {b = 0, c = 0}}}, d2 = {z = 0, a = 0, {b = 0, c = 0}}}"}
  91
  92     # Arrays are treated as an extra level, while scalars are not.
  93     gdb_print_expr_at_depths "s10" {"{...}" \
  94                                         "{x = {...}, y = 0, {k = {...}, j = 0, d1 = {...}}, d2 = {...}}" \
  95                                         "{x = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, y = 0, {k = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, j = 0, d1 = {z = 0, a = 0, {b = {...}, c = 0}}}, d2 = {z = 0, a = 0, {b = {...}, c = 0}}}" \
  96                                         "{x = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, y = 0, {k = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, j = 0, d1 = {z = 0, a = 0, {b = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, c = 0}}}, d2 = {z = 0, a = 0, {b = \\{0, 0, 0, 0, 0, 0, 0, 0, 0, 0\\}, c = 0}}}"}
  97
  98     # Strings are treated as scalars.
  99     gdb_print_expr_at_depths "s11" {"{...}" \
 100                                         "{x = 0, s = \"\\\\000\\\\000\\\\000\\\\000\\\\000\\\\000\\\\000\\\\000\\\\000\", {z = 0, a = 0}}"}
 101
 102
 103     if { $lang == "c++" } {
 104         gdb_print_expr_at_depths "c1" {"{...}" \
 105                                            "{c1 = 1}" }
 106         gdb_print_expr_at_depths "c2" { "{...}" "{c2 = 2}" }
 107         gdb_print_expr_at_depths "c3" { "{...}" \
 108                                             "{<C2> = {...}, c3 = 3}" \
 109                                             "{<C2> = {c2 = 2}, c3 = 3}" }
 110         gdb_print_expr_at_depths "c4" { "{...}" "{c4 = 4}" }
 111         gdb_print_expr_at_depths "c5" { "{...}" \
 112                                             "{<C4> = {...}, c5 = 5}" \
 113                                             "{<C4> = {c4 = 4}, c5 = 5}" }
 114         gdb_print_expr_at_depths "c6" { "{...}" \
 115                                             "{<C5> = {...}, c6 = 6}" \
 116                                             "{<C5> = {<C4> = {...}, c5 = 5}, c6 = 6}" \
 117                                             "{<C5> = {<C4> = {c4 = 4}, c5 = 5}, c6 = 6}" }
 118         gdb_print_expr_at_depths "c7" { "{...}" \
 119                                             "{<C1> = {...}, <C3> = {...}, <C6> = {...}, c7 = 7}" \
 120                                             "{<C1> = {c1 = 1}, <C3> = {<C2> = {...}, c3 = 3}, <C6> = {<C5> = {...}, c6 = 6}, c7 = 7}" \
 121                                             "{<C1> = {c1 = 1}, <C3> = {<C2> = {c2 = 2}, c3 = 3}, <C6> = {<C5> = {<C4> = {...}, c5 = 5}, c6 = 6}, c7 = 7}" \
 122                                             "{<C1> = {c1 = 1}, <C3> = {<C2> = {c2 = 2}, c3 = 3}, <C6> = {<C5> = {<C4> = {c4 = 4}, c5 = 5}, c6 = 6}, c7 = 7}" }
 123
 124         gdb_print_expr_at_depths "v1" [list "{...}" "{v1 = 1}" ]
 125         gdb_print_expr_at_depths "v2" [list "{...}" \
 126                                             "{<V1> = {...}, _vptr.V2 = $hex <VTT for V2>, v2 = 2}" \
 127                                             "{<V1> = {v1 = 1}, _vptr.V2 = $hex <VTT for V2>, v2 = 2}" ]
 128         gdb_print_expr_at_depths "v3" [list "{...}" \
 129                                             "{<V1> = {...}, _vptr.V3 = $hex <VTT for V3>, v3 = 3}" \
 130                                             "{<V1> = {v1 = 1}, _vptr.V3 = $hex <VTT for V3>, v3 = 3}" ]
 131         gdb_print_expr_at_depths "v4" [list "{...}" \
 132                                             "{<V2> = {...}, _vptr.V4 = $hex <vtable for V4\[^>\]+>, v4 = 4}" \
 133                                             "{<V2> = {<V1> = {...}, _vptr.V2 = $hex <VTT for V4>, v2 = 2}, _vptr.V4 = $hex <vtable for V4\[^>\]+>, v4 = 4}" \
 134                                             "{<V2> = {<V1> = {v1 = 1}, _vptr.V2 = $hex <VTT for V4>, v2 = 2}, _vptr.V4 = $hex <vtable for V4\[^>\]+>, v4 = 4}" ]
 135         gdb_print_expr_at_depths "v5" [list "{...}" \
 136                                             "{<V2> = {...}, _vptr.V5 = $hex <vtable for V5\[^>\]+>, v5 = 1}" \
 137                                             "{<V2> = {<V1> = {...}, _vptr.V2 = $hex <VTT for V5>, v2 = 2}, _vptr.V5 = $hex <vtable for V5\[^>\]+>, v5 = 1}" \
 138                                             "{<V2> = {<V1> = {v1 = 1}, _vptr.V2 = $hex <VTT for V5>, v2 = 2}, _vptr.V5 = $hex <vtable for V5\[^>\]+>, v5 = 1}" ]
 139         gdb_print_expr_at_depths "v6" [list "{...}" \
 140                                             "{<V2> = {...}, <V3> = {...}, _vptr.V6 = $hex <vtable for V6\[^>\]+>, v6 = 1}" \
 141                                             "{<V2> = {<V1> = {...}, _vptr.V2 = $hex <vtable for V6\[^>\]+>, v2 = 2}, <V3> = {_vptr.V3 = $hex <VTT for V6>, v3 = 3}, _vptr.V6 = $hex <vtable for V6\[^>\]+>, v6 = 1}" \
 142                                             "{<V2> = {<V1> = {v1 = 1}, _vptr.V2 = $hex <vtable for V6\[^>\]+>, v2 = 2}, <V3> = {_vptr.V3 = $hex <VTT for V6>, v3 = 3}, _vptr.V6 = $hex <vtable for V6\[^>\]+>, v6 = 1}" ]
 143         gdb_print_expr_at_depths "v7" [list "{...}" \
 144                                             "{<V4> = {...}, <V5> = {...}, <V6> = {...}, _vptr.V7 = $hex <vtable for V7\[^>\]+>, v7 = 1}" \
 145                                             "{<V4> = {<V2> = {...}, _vptr.V4 = $hex <vtable for V7\[^>\]+>, v4 = 4}, <V5> = {_vptr.V5 = $hex <vtable for V7\[^>\]+>, v5 = 1}, <V6> = {<V3> = {...}, _vptr.V6 = $hex <vtable for V7\[^>\]+>, v6 = 1}, _vptr.V7 = $hex <vtable for V7\[^>\]+>, v7 = 1}" \
 146                                             "{<V4> = {<V2> = {<V1> = {...}, _vptr.V2 = $hex <vtable for V7\[^>\]+>, v2 = 2}, _vptr.V4 = $hex <vtable for V7\[^>\]+>, v4 = 4}, <V5> = {_vptr.V5 = $hex <vtable for V7\[^>\]+>, v5 = 1}, <V6> = {<V3> = {_vptr.V3 = $hex <VTT for V7>, v3 = 3}, _vptr.V6 = $hex <vtable for V7\[^>\]+>, v6 = 1}, _vptr.V7 = $hex <vtable for V7\[^>\]+>, v7 = 1}" \
 147                                             "{<V4> = {<V2> = {<V1> = {v1 = 1}, _vptr.V2 = $hex <vtable for V7\[^>\]+>, v2 = 2}, _vptr.V4 = $hex <vtable for V7\[^>\]+>, v4 = 4}, <V5> = {_vptr.V5 = $hex <vtable for V7\[^>\]+>, v5 = 1}, <V6> = {<V3> = {_vptr.V3 = $hex <VTT for V7>, v3 = 3}, _vptr.V6 = $hex <vtable for V7\[^>\]+>, v6 = 1}, _vptr.V7 = $hex <vtable for V7\[^>\]+>, v7 = 1}" ]
 148     }
 149 }
 150
 151 compile_and_run_tests $lang