testsuite/gdb.base/skip.exp

#   Copyright 2011-2015 Free Software Foundation, Inc.

# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

# This file was written by Justin Lebar. (justin.lebar@gmail.com)

if { [prepare_for_testing skip.exp "skip" \
                          {skip.c skip1.c } \
                          {debug nowarnings}] } {
    return -1
}

set srcfile skip.c
set srcfile1 skip1.c

#
# Right after we start gdb, there's no default file or function to skip.
#
gdb_test "skip file" "No default file now." "skip file (no default file)"
gdb_test "skip function" "No default function now."
gdb_test "skip" "No default function now." "skip (no default function)"

if ![runto_main] { fail "skip tests suppressed" }

#
# Test |info skip| with an empty skiplist.
#
gdb_test "info skip" "Not skipping any files or functions\." "info skip empty"

#
# Create a skiplist entry for the current file and function.
#
gdb_test "skip file" "File .*$srcfile will be skipped when stepping\." "skip file ($srcfile)"
gdb_test "skip" "Function main will be skipped when stepping\." "skip (main)"

#
# Create a skiplist entry for a specified file and function.
#
gdb_test "skip file skip1.c" "File .*$srcfile1 will be skipped when stepping\."
gdb_test "skip function baz" "Function baz will be skipped when stepping\."

#
# Test bad skiplist entry modification commands
#
gdb_test "skip enable 999" "No skiplist entries found with number 999."
gdb_test "skip disable 999" "No skiplist entries found with number 999."
gdb_test "skip delete 999" "No skiplist entries found with number 999."
gdb_test "skip enable a" "Args must be numbers or '\\$' variables."
gdb_test "skip disable a" "Args must be numbers or '\\$' variables."
gdb_test "skip delete a" "Args must be numbers or '\\$' variables."

#
# Ask for info on a skiplist entry which doesn't exist.
#
gdb_test "info skip 999" "No skiplist entries found with number 999."

#
# Does |info skip| look right?
#
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
1\\s+file\\s+y\\s+.*$srcfile\\s*
2\\s+function\\s+y\\s+main\\s*
3\\s+file\\s+y\\s+$srcfile1\\s*
4\\s+function\\s+y\\s+baz\\s*"

#
# Right now, we have an outstanding skiplist entry on both source
# files, so when we step into the first line in main(), we should step
# right over it and go to the second line of main().
#

if ![runto_main] { fail "skip tests suppressed" }
gdb_test "step" ".*" "step in the main"
gdb_test "bt" "\\s*\\#0\\s+main.*" "step after all ignored"

#
# Now remove skip.c from the skiplist.  Our first step should take us
# into foo(), and our second step should take us to the next line in
# main().
#
gdb_test "skip delete 1"
# Check that entry 1 is missing from |info skip|
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+y\\s+main\\s*
3\\s+file\\s+y\\s+$srcfile1\\s*
4\\s+function\\s+y\\s+baz\\s*" \
    "info skip (delete 1)"

if ![runto_main] { fail "skip tests suppressed" }
gdb_test "step" "foo \\(\\) at.*" "step after deleting 1 (1)"
gdb_test "step" ".*" "step after deleting 1 (2)" ; # Return from foo()
gdb_test "step" "main \\(\\) at.*" "step after deleting 1 (3)"

#
# Now disable the skiplist entry for  skip1.c.  We should now
# step into foo(), then into bar(), but not into baz().
#
gdb_test "skip disable 3"
# Is entry 3 disabled in |info skip|?
gdb_test "info skip 3" ".*\\n3\\s+file\\s+n.*" \
  "info skip shows entry as disabled"

if ![runto_main] { fail "skip tests suppressed" }
gdb_test "step" "bar \\(\\) at.*" "step after disabling 3 (1)"
gdb_test "step" ".*" "step after disabling 3 (2)"; # Return from foo()
gdb_test "step" "foo \\(\\) at.*" "step after disabling 3 (3)"
gdb_test "step" ".*" "step after disabling 3 (4)"; # Return from bar()
gdb_test "step" "main \\(\\) at.*" "step after disabling 3 (5)"

#
# Enable skiplist entry 3 and make sure we step over it like before.
#
gdb_test "skip enable 3"
# Is entry 3 enabled in |info skip|?
gdb_test "info skip 3" ".*\\n3\\s+file\\s+y.*" \
  "info skip shows entry as enabled"
if ![runto_main] { fail "skip tests suppressed" }
gdb_test "step" "foo \\(\\) at.*" "step after enable 3 (1)"
gdb_test "step" ".*" "step after enable 3 (2)"; # Return from foo()
gdb_test "step" "main \\(\\) at.*" "step after enable 3 (3)"

gdb_test "skip disable"
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+n\\s+main\\s*
3\\s+file\\s+n\\s+$srcfile1\\s*
4\\s+function\\s+n\\s+baz\\s*" \
  "info skip after disabling all"

gdb_test "skip enable"
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+y\\s+main\\s*
3\\s+file\\s+y\\s+$srcfile1\\s*
4\\s+function\\s+y\\s+baz\\s*" \
  "info skip after enabling all"

gdb_test "skip disable 4 2-3"
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+n\\s+main\\s*
3\\s+file\\s+n\\s+$srcfile1\\s*
4\\s+function\\s+n\\s+baz\\s*" \
  "info skip after disabling 4 2-3"

gdb_test "skip enable 2-3"
gdb_test "info skip" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+y\\s+main\\s*
3\\s+file\\s+y\\s+$srcfile1\\s*
4\\s+function\\s+n\\s+baz\\s*" \
  "info skip after enabling 2-3"

gdb_test "info skip 2-3" \
  "Num\\s+Type\\s+Enb\\s+What\\s*
2\\s+function\\s+y\\s+main\\s*
3\\s+file\\s+y\\s+$srcfile1\\s*" \
  "info skip 2-3"

gdb_test "skip delete 2 3"
gdb_test "info skip" \
  "4\\s+function\\s+n\\s+baz\\s*" \
  "info skip after deleting 2 3"

gdb_test "skip delete"
gdb_test "info skip" "Not skipping any files or functions\." \
  "info skip after deleting all"