gdb/testsuite/gdb.base/skip.exp

   1 #   Copyright 2011-2020 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
  16 # This file was written by Justin Lebar. (justin.lebar@gmail.com)
  17 # And further hacked on by Doug Evans. (dje@google.com)
  18
  19 load_lib completion-support.exp
  20
  21 standard_testfile
  22
  23 if { [prepare_for_testing "failed to prepare" "skip" \
  24                           {skip.c skip1.c } \
  25                           {debug nowarnings}] } {
  26     return -1
  27 }
  28
  29 set srcfile skip.c
  30 set srcfile1 skip1.c
  31
  32 # Right after we start gdb, there's no default file or function to skip.
  33
  34 gdb_test "skip file" "No default file now." "skip file (no default file)"
  35 gdb_test "skip function" "No default function now."
  36 gdb_test "skip" "No default function now." "skip (no default function)"
  37
  38 # Test elided args.
  39
  40 gdb_test "skip -fi" "Missing value for -fi option."
  41 gdb_test "skip -file" "Missing value for -file option."
  42 gdb_test "skip -fu" "Missing value for -fu option."
  43 gdb_test "skip -function" "Missing value for -function option."
  44 gdb_test "skip -rfu" "Missing value for -rfu option."
  45 gdb_test "skip -rfunction" "Missing value for -rfunction option."
  46
  47 # Test other invalid option combinations.
  48
  49 gdb_test "skip -x" "Invalid skip option: -x"
  50 gdb_test "skip -rfu foo.* xyzzy" "Invalid argument: xyzzy"
  51
  52 if ![runto_main] {
  53     fail "can't run to main"
  54     return
  55 }
  56
  57 # Test |info skip| with an empty skiplist.
  58
  59 gdb_test "info skip" "Not skipping any files or functions\." "info skip empty"
  60
  61 # Create a skiplist entry for the current file and function.
  62
  63 gdb_test "skip file" "File .*$srcfile will be skipped when stepping\." "skip file ($srcfile)"
  64 gdb_test "skip" "Function main will be skipped when stepping\." "skip (main)"
  65
  66 # Create a skiplist entry for a specified file and function.
  67
  68 gdb_test "skip file skip1.c" "File .*$srcfile1 will be skipped when stepping\."
  69 gdb_test "skip function baz" "Function baz will be skipped when stepping\."
  70
  71 # Test bad skiplist entry modification commands
  72
  73 gdb_test "skip enable 999" "No skiplist entries found with number 999."
  74 gdb_test "skip disable 999" "No skiplist entries found with number 999."
  75 gdb_test "skip delete 999" "No skiplist entries found with number 999."
  76 gdb_test "skip enable a" "Arguments must be numbers or '\\$' variables."
  77 gdb_test "skip disable a" "Arguments must be numbers or '\\$' variables."
  78 gdb_test "skip delete a" "Arguments must be numbers or '\\$' variables."
  79
  80 # Ask for info on a skiplist entry which doesn't exist.
  81
  82 gdb_test "info skip 999" "No skiplist entries found with number 999."
  83
  84 # Does |info skip| look right?
  85
  86 gdb_test "info skip" \
  87     "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
  88 1\\s+y\\s+n\\s+.*$srcfile\\s+n\\s+<none>\\s*
  89 2\\s+y\\s+n\\s+<none>\\s+n\\s+main\\s*
  90 3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
  91 4\\s+y\\s+n\\s+<none>\\s+n\\s+baz\\s*"
  92
  93 # Right now, we have an outstanding skiplist entry on both source
  94 # files, so when we step into the first line in main(), we should step
  95 # right over it and go to the second line of main().
  96
  97 if ![runto_main] {
  98     fail "can't run to main"
  99     return
 100 }
 101
 102 gdb_test "step" ".*" "step in the main"
 103 gdb_test "bt" "\\s*\\#0\\s+main.*" "step after all ignored"
 104
 105 # Now remove skip.c from the skiplist.  Our first step should take us
 106 # into foo(), and our second step should take us to the next line in main().
 107
 108 with_test_prefix "step after deleting 1" {
 109     gdb_test "skip delete 1"
 110     # Check that entry 1 is missing from |info skip|
 111     gdb_test "info skip" \
 112         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 113 2\\s+y\\s+n\\s+<none>\\s+n\\s+main\\s*
 114 3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
 115 4\\s+y\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 116         "info skip (delete 1)"
 117
 118     if ![runto_main] {
 119         fail "can't run to main"
 120         return
 121     }
 122
 123     gdb_test "step" "foo \\(\\) at.*" "step 1"
 124     gdb_test "step" ".*" "step 2" ; # Return from foo()
 125     gdb_test "step" "main \\(\\) at.*" "step 3"
 126 }
 127
 128 # Now disable the skiplist entry for  skip1.c.  We should now
 129 # step into foo(), then into bar(), but not into baz().
 130
 131 with_test_prefix "step after disabling 3" {
 132     gdb_test "skip disable 3"
 133     # Is entry 3 disabled in |info skip|?
 134     gdb_test "info skip 3" \
 135         "3\\s+n\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*" \
 136         "info skip shows entry as disabled"
 137
 138     if ![runto_main] {
 139         fail "can't run to main"
 140         return
 141     }
 142
 143     gdb_test "step" "bar \\(\\) at.*" "step 1"
 144     gdb_test "step" ".*" "step 2"; # Return from bar()
 145     # With gcc 9.2.0 we jump once back to main before entering foo here.
 146     # If that happens try to step a second time.
 147     gdb_test "step" "foo \\(\\) at.*" "step 3" \
 148         "main \\(\\) at .*\r\n$gdb_prompt " "step"
 149     gdb_test "step" ".*" "step 4"; # Return from foo()
 150     gdb_test "step" "main \\(\\) at.*" "step 5"
 151 }
 152
 153 # Enable skiplist entry 3 and make sure we step over it like before.
 154
 155 with_test_prefix "step after enable 3" {
 156     gdb_test "skip enable 3"
 157     # Is entry 3 enabled in |info skip|?
 158     gdb_test "info skip 3" \
 159         "3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*" \
 160         "info skip shows entry as enabled"
 161
 162     if ![runto_main] {
 163         fail "can't run to main"
 164         return
 165     }
 166
 167     gdb_test "step" "foo \\(\\) at.*" "step 1"
 168     gdb_test "step" ".*" "step 2"; # Return from foo()
 169     gdb_test "step" "main \\(\\) at.*" "step 3"
 170 }
 171
 172 # Admin tests (disable,enable,delete).
 173
 174 with_test_prefix "admin" {
 175     gdb_test "skip disable"
 176     gdb_test "info skip" \
 177         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 178 2\\s+n\\s+n\\s+<none>\\s+n\\s+main\\s*
 179 3\\s+n\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
 180 4\\s+n\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 181         "info skip after disabling all"
 182
 183     gdb_test "skip enable"
 184     gdb_test "info skip" \
 185         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 186 2\\s+y\\s+n\\s+<none>\\s+n\\s+main\\s*
 187 3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
 188 4\\s+y\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 189         "info skip after enabling all"
 190
 191     gdb_test "skip disable 4 2-3"
 192     gdb_test "info skip" \
 193         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 194 2\\s+n\\s+n\\s+<none>\\s+n\\s+main\\s*
 195 3\\s+n\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
 196 4\\s+n\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 197         "info skip after disabling 4 2-3"
 198
 199     gdb_test "skip enable 2-3"
 200     gdb_test "info skip" \
 201         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 202 2\\s+y\\s+n\\s+<none>\\s+n\\s+main\\s*
 203 3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*
 204 4\\s+n\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 205         "info skip after enabling 2-3"
 206
 207     gdb_test "info skip 2-3" \
 208         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 209 2\\s+y\\s+n\\s+<none>\\s+n\\s+main\\s*
 210 3\\s+y\\s+n\\s+$srcfile1\\s+n\\s+<none>\\s*"
 211
 212     gdb_test "skip delete 2 3"
 213     gdb_test "info skip" \
 214         "Num\\s+Enb\\s+Glob\\s+File\\s+RE\\s+Function\\s*
 215 4\\s+n\\s+n\\s+<none>\\s+n\\s+baz\\s*" \
 216         "info skip after deleting 2 3"
 217
 218     gdb_test "skip delete"
 219     gdb_test "info skip" "Not skipping any files or functions\." \
 220         "info skip after deleting all"
 221 }
 222
 223 # Now test skip -fi, etc.
 224
 225 # Create a skiplist entry for a specified file and function.
 226 gdb_test "skip -fi skip1.c" "File .*$srcfile1 will be skipped when stepping\."
 227 gdb_test "skip -gfi sk*1.c" "File\\(s\\) sk\\*1.c will be skipped when stepping\."
 228 gdb_test "skip -fu baz" "Function baz will be skipped when stepping\."
 229 gdb_test "skip -rfu ^b.z$" "Function\\(s\\) \\^b\\.z\\$ will be skipped when stepping."
 230
 231 with_test_prefix "step using -fi" {
 232     if ![runto_main] {
 233         fail "can't run to main"
 234         return
 235     }
 236
 237     gdb_test_no_output "skip disable"
 238     gdb_test_no_output "skip enable 5"
 239     gdb_test "step" "foo \\(\\) at.*" "step 1"
 240     gdb_test "step" ".*" "step 2"; # Return from foo()
 241     gdb_test "step" "main \\(\\) at.*" "step 3"
 242 }
 243
 244 with_test_prefix "step using -gfi" {
 245     if ![runto_main] {
 246         fail "can't run to main"
 247         return
 248     }
 249
 250     gdb_test_no_output "skip disable"
 251     gdb_test_no_output "skip enable 6"
 252     gdb_test "step" "foo \\(\\) at.*" "step 1"
 253     gdb_test "step" ".*" "step 2"; # Return from foo()
 254     gdb_test "step" "main \\(\\) at.*" "step 3"
 255 }
 256
 257 with_test_prefix "step using -fu for baz" {
 258     if ![runto_main] {
 259         fail "can't run to main"
 260         return
 261     }
 262
 263     gdb_test_no_output "skip disable"
 264     gdb_test_no_output "skip enable 7"
 265     gdb_test "step" "bar \\(\\) at.*" "step 1"
 266     gdb_test "step" ".*" "step 2"; # Return from bar()
 267     # With gcc 9.2.0 we jump once back to main before entering foo here.
 268     # If that happens try to step a second time.
 269     gdb_test "step" "foo \\(\\) at.*" "step 3" \
 270         "main \\(\\) at .*\r\n$gdb_prompt " "step"
 271     gdb_test "step" ".*" "step 4"; # Return from foo()
 272     gdb_test "step" "main \\(\\) at.*" "step 5"
 273 }
 274
 275 with_test_prefix "step using -rfu for baz" {
 276     if ![runto_main] {
 277         fail "can't run to main"
 278         return
 279     }
 280
 281     gdb_test_no_output "skip disable"
 282     gdb_test_no_output "skip enable 8"
 283     gdb_test "step" "bar \\(\\) at.*" "step 1"
 284     gdb_test "step" ".*" "step 2"; # Return from bar()
 285     # With gcc 9.2.0 we jump once back to main before entering foo here.
 286     # If that happens try to step a second time.
 287     gdb_test "step" "foo \\(\\) at.*" "step 3" \
 288         "main \\(\\) at .*\r\n$gdb_prompt " "step"
 289     gdb_test "step" ".*" "step 4"; # Return from foo()
 290     gdb_test "step" "main \\(\\) at.*" "step 5"
 291 }
 292
 293 # Test -fi + -fu.
 294
 295 with_test_prefix "step using -fi + -fu" {
 296     gdb_test_no_output "skip delete"
 297
 298     if ![runto test_skip_file_and_function no-message] {
 299         fail "can't run to test_skip_file_and_function"
 300         return
 301     }
 302
 303     gdb_test "skip -fi skip1.c -fu test_skip" \
 304         "Function test_skip in file skip1.c will be skipped when stepping\."
 305     # Verify we can step into skip.c:test_skip but not skip1.c:test_skip.
 306     gdb_test "step" "test_skip \\(\\) at.*" "step 1"
 307     gdb_test "step" "test_skip_file_and_function \\(\\) at.*" "step 2"; # Return from test_skip()
 308     gdb_test "step" "skip1_test_skip_file_and_function \\(\\) at.*" "step 3"
 309     gdb_test "step" ".*" "step 4"; # Skip over test_skip()
 310     gdb_test "step" "test_skip_file_and_function \\(\\) at.*" "step 5"; # Return from skip1_test_skip_file_and_function()
 311 }
 312
 313 with_test_prefix "skip delete completion" {
 314     global binfile
 315     clean_restart "${binfile}"
 316     if ![runto_main] {
 317         fail "can't run to main"
 318         return
 319     }
 320
 321     # Create a bunch of skips, don't care what they are.
 322     for {set i 0} {$i < 12} {incr i} {
 323         gdb_test "skip" ".*" "add skip $i"
 324     }
 325
 326     set all_numbers { "1" "10" "11" "12" "2" "3" "4" "5" "6" "7" "8" "9" }
 327
 328     # Test completing single numbers.
 329     test_gdb_complete_multiple "skip delete " "" "" $all_numbers
 330     test_gdb_complete_multiple "skip delete " "1" "" { "1" "10" "11" "12" }
 331     test_gdb_complete_multiple "skip delete 2 " "" "" $all_numbers
 332     test_gdb_complete_unique "skip delete 11" "skip delete 11"
 333
 334     # Test completing ranges.
 335     test_gdb_complete_multiple "skip delete 2-" "" "" $all_numbers
 336     test_gdb_complete_unique "skip delete 2-5" "skip delete 2-5"
 337
 338     # Test cases with no completion.
 339     test_gdb_complete_none "skip delete 123"
 340     test_gdb_complete_none "skip delete a1"
 341     test_gdb_complete_none "skip delete 2-33"
 342 }
 343