* lib/gdb.exp (rerun_to_main): Allow restarting application.

[thirdparty/binutils-gdb.git] / gdb / testsuite / gdb.base / ena-dis-br.exp

#   Copyright 1997, 1998, 1999 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 2 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, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */

# Please email any bugs, comments, and/or additions to this file to:
# bug-gdb@prep.ai.mit.edu

if $tracelevel then {
	strace $tracelevel
	}

global usestubs

#
# test running programs
#
set prms_id 0
set bug_id 0

set testfile "break"
set srcfile ${testfile}.c
set binfile ${objdir}/${subdir}/${testfile}

if  { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug}] != "" } {
     gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}

if ![runto_main] then { fail "enable/disable break tests suppressed" }

# Verify that we can set a breakpoint (the location is irrelevant),
# then enable it (yes, it's already enabled by default), then hit it.
#
send_gdb "break marker1\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line 4\[38\].*$gdb_prompt $"\
          {pass "break marker1"}
  -re "$gdb_prompt $"\
          {fail "break marker1"}
  timeout {fail "(timeout) break marker1"}
}

send_gdb "enable $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "enable break marker1"}
  timeout {fail "(timeout) enable break marker1"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*$gdb_prompt $"\
          {pass "info break marker1"}
  -re "$gdb_prompt $"\
          {fail "info break marker1"}
  timeout {fail "(timeout) info break marker1"}
}

# See the comments in condbreak.exp for "run until breakpoint at marker1" 
# for an explanation of the xfail below.
send_gdb "continue\n"
gdb_expect {
  -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $"\
          {pass "continue to break marker1"}
  -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $"\
          {xfail "continue to break marker1"}
  -re "$gdb_prompt $"\
          {fail "continue to break marker1"}
  timeout {fail "(timeout) continue to break marker1"}
}

send_gdb "delete $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "delete break marker1"}
  timeout {fail "(timeout) delete break marker1"}
}

# Verify that we can set a breakpoint to be self-disabling after
# the first time it triggers.
#
send_gdb "break marker2\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line 4\[49\].*$gdb_prompt $"\
          {pass "break marker2"}
  -re "$gdb_prompt $"\
          {fail "break marker2"}
  timeout {fail "(timeout) break marker2"}
}

send_gdb "enable once $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "enable once break marker2"}
  timeout {fail "(timeout) enable once break marker2"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+y.*$gdb_prompt $"\
          {pass "info auto-disabled break marker2"}
  -re "$gdb_prompt $"\
          {fail "info auto-disabled break marker2"}
  timeout {fail "(timeout) info auto-disabled break marker2"}
}

# See the comments in condbreak.exp for "run until breakpoint at marker1" 
# for an explanation of the xfail below.
send_gdb "continue\n"
gdb_expect {
  -re "Breakpoint \[0-9\]*, marker2.*$gdb_prompt $"\
          {pass "continue to auto-disabled break marker2"}
  -re "Breakpoint \[0-9\]*, $hex in marker2.*$gdb_prompt $"\
          {xfail "continue to auto-disabled break marker2"}
  -re "$gdb_prompt $"\
          {fail "continue to auto-disabled break marker2"}
  timeout {fail "(timeout) continue to auto-disabled break marker2"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+dis\[ \t\]+n.*$gdb_prompt $"\
          {pass "info auto-disabled break marker2"}
  -re "$gdb_prompt $"\
          {fail "info auto-disabled break marker2"}
  timeout {fail "(timeout) info auto-disabled break marker2"}
}

# Verify that we don't stop at a disabled breakpoint.
#
gdb_continue_to_end "no stop"
rerun_to_main
gdb_continue_to_end "no stop at auto-disabled break marker2"

# Verify that we can set a breakpoint to be self-deleting after
# the first time it triggers.
#
if ![runto_main] then { fail "enable/disable break tests suppressed" }

send_gdb "break marker3\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line (45|50).*$gdb_prompt $"\
          {pass "break marker3"}
  -re "$gdb_prompt $"\
          {fail "break marker3"}
  timeout {fail "(timeout) break marker3"}
}

send_gdb "enable del $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "enable del break marker3"}
  timeout {fail "(timeout) enable del break marker3"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*$gdb_prompt $"\
          {pass "info auto-deleted break marker2"}
  -re "$gdb_prompt $"\
          {fail "info auto-deleted break marker2"}
  timeout {fail "(timeout) info auto-deleted break marker2"}
}

send_gdb "continue\n"
gdb_expect {
  -re ".*marker3 .*:(45|50).*$gdb_prompt $"\
          {pass "continue to auto-deleted break marker3"}
  -re "Breakpoint \[0-9\]*, marker3.*$gdb_prompt $"\
          {fail "continue to auto-deleted break marker3"}
  -re "$gdb_prompt $"\
          {fail "continue to auto-deleted break marker3"}
  timeout {fail "(timeout) continue to break marker3"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re ".*No breakpoint or watchpoint number.*$gdb_prompt $"\
          {pass "info auto-deleted break marker3"}
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\].*$gdb_prompt $"\
          {fail "info auto-deleted break marker3"}
  -re "$gdb_prompt $"\
          {fail "info auto-deleted break marker3"}
  timeout {fail "(timeout) info auto-deleted break marker3"}
}

# Verify that we can set a breakpoint and manually disable it (we've
# already proven that disabled bp's don't trigger).
#
send_gdb "break marker4\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line (46|51).*$gdb_prompt $"\
          {pass "break marker4"}
  -re "$gdb_prompt $"\
          {fail "break marker4"}
  timeout {fail "(timeout) break marker4"}
}

send_gdb "disable $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "disable break marker4"}
  timeout {fail "(timeout) disable break marker4"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*$gdb_prompt $"\
          {pass "info break marker4"}
  -re "$gdb_prompt $"\
          {fail "info break marker4"}
  timeout {fail "(timeout) info break marker4"}
}

# Verify that we can set a breakpoint with an ignore count N, which
# should cause the next N triggers of the bp to be ignored.  (This is
# a flavor of enablement/disablement, after all.)
#
if ![runto_main] then { fail "enable/disable break tests suppressed" }

send_gdb "break marker1\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line 4\[38\].*$gdb_prompt $"\
          {pass "break marker1"}
  -re "$gdb_prompt $"\
          {fail "break marker1"}
  timeout {fail "(timeout) break marker1"}
}

# Verify that an ignore of a non-existent breakpoint is gracefully
# handled.
#
send_gdb "ignore 999 2\n"
gdb_expect {
  -re "No breakpoint number 999..*$gdb_prompt $"\
          {pass "ignore non-existent break"}
  -re "$gdb_prompt $"\
          {fail "ignore non-existent break"}
  timeout {fail "(timeout) ignore non-existent break"}
}

# Verify that a missing ignore count is gracefully handled.
#
send_gdb "ignore $expect_out(1,string) \n"
gdb_expect {
  -re "Second argument .specified ignore-count. is missing..*$gdb_prompt $"\
          {pass "ignore break with missing ignore count"}
  -re "$gdb_prompt $"\
          {fail "ignore break with missing ignore count"}
  timeout {fail "(timeout) ignore break with missing ignore count"}
}

# Verify that a negative or zero ignore count is handled gracefully
# (they both are treated the same).
#
send_gdb "ignore $expect_out(1,string) -1\n"
gdb_expect {
  -re "Will stop next time breakpoint \[0-9\]* is reached..*$gdb_prompt $"\
          {pass "ignore break marker1 -1"}
  -re "$gdb_prompt $"\
          {fail "ignore break marker1 -1"}
  timeout {fail "(timeout) ignore break marker1 -1"}
}

send_gdb "ignore $expect_out(1,string) 0\n"
gdb_expect {
  -re "Will stop next time breakpoint \[0-9\]* is reached..*$gdb_prompt $"\
          {pass "ignore break marker1 0"}
  -re "$gdb_prompt $"\
          {fail "ignore break marker1 0"}
  timeout {fail "(timeout) ignore break marker1 0"}
}

send_gdb "ignore $expect_out(1,string) 1\n"
gdb_expect {
  -re "Will ignore next crossing of breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "ignore break marker1"}
  -re "$gdb_prompt $"\
          {fail "ignore break marker1"}
  timeout {fail "(timeout) ignore break marker1"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+y.*ignore next 1 hits.*$gdb_prompt $"\
          {pass "info ignored break marker1"}
  -re "$gdb_prompt $"\
          {fail "info ignored break marker1"}
  timeout {fail "(timeout) info ignored break marker1"}
}

gdb_continue_to_end "no stop at ignored break marker1"
rerun_to_main

# See the comments in condbreak.exp for "run until breakpoint at marker1" 
# for an explanation of the xfail below.
send_gdb "continue\n"
gdb_expect {
  -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $"\
          {pass "continue to break marker1, 2nd time"}
  -re "Breakpoint \[0-9\]*, $hex in marker1.*$gdb_prompt $"\
          {xfail "continue to break marker1, 2nd time"}
  -re "$gdb_prompt $"\
          {fail "continue to break marker1, 2nd time"}
  timeout {fail "(timeout) continue to break marker1, 2nd time"}
}

# Verify that we can specify both an ignore count and an auto-delete.
#
if ![runto_main] then { fail "enable/disable break tests suppressed" }

send_gdb "break marker1\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line 4\[38\].*$gdb_prompt $"\
          {pass "break marker1"}
  -re "$gdb_prompt $"\
          {fail "break marker1"}
  timeout {fail "(timeout) break marker1"}
}

send_gdb "ignore $expect_out(1,string) 1\n"
gdb_expect {
  -re "Will ignore next crossing of breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "ignore break marker1"}
  -re "$gdb_prompt $"\
          {fail "ignore break marker1"}
  timeout {fail "(timeout) ignore break marker1"}
}

send_gdb "enable del $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "enable del break marker1"}
  timeout {fail "(timeout) enable del break marker1"}
}

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+del\[ \t\]+y.*ignore next 1 hits.*$gdb_prompt $"\
          {pass "info break marker1"}
  -re "$gdb_prompt $"\
          {fail "info break marker1"}
  timeout {fail "(timeout) info break marker2"}
}

gdb_continue_to_end "no stop at ignored & auto-deleted break marker1"
rerun_to_main

send_gdb "continue\n"
gdb_expect {
  -re ".*marker1 .*:4\[38\].*$gdb_prompt $"\
          {pass "continue to ignored & auto-deleted break marker1"}
  -re "Breakpoint \[0-9\]*, marker1.*$gdb_prompt $"\
          {fail "continue to ignored & auto-deleted break marker1"}
  -re "$gdb_prompt $"\
          {fail "continue to ignored & auto-deleted break marker1"}
  timeout {fail "(timeout) continue to ignored & auto-deleted break marker1"}
}

# Verify that a disabled breakpoint's ignore count isn't updated when
# the bp is encountered.
#
if ![runto_main] then { fail "enable/disable break tests suppressed" }

send_gdb "break marker1\n"
gdb_expect {
  -re "Breakpoint (\[0-9\]*) at .*, line 4\[38\].*$gdb_prompt $"\
          {pass "break marker1"}
  -re "$gdb_prompt $"\
          {fail "break marker1"}
  timeout {fail "(timeout) break marker1"}
}

send_gdb "ignore $expect_out(1,string) 10\n"
gdb_expect {
  -re "Will ignore next 10 crossings of breakpoint \[0-9\]*.*$gdb_prompt $"\
          {pass "ignore break marker1"}
  -re "$gdb_prompt $"\
          {fail "ignore break marker1"}
  timeout {fail "(timeout) ignore break marker1"}
}

send_gdb "disable $expect_out(1,string)\n"
gdb_expect {
  -re "$gdb_prompt $"\
          {pass "disable break marker1"}
  timeout {fail "(timeout) disable break marker1"}
}

gdb_continue_to_end "no stop at ignored & disabled break marker1"
rerun_to_main

send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
  -re "\[0-9\]*\[ \t\]+breakpoint\[ \t\]+keep\[ \t\]+n.*ignore next 10 hits.*$gdb_prompt $"\
          {pass "info ignored & disabled break marker1"}
  -re "$gdb_prompt $"\
          {fail "info ignored & disabled break marker1"}
  timeout {fail "(timeout) info ignored & disabled break marker1"}
}

# Verify that GDB correctly handles the "continue" command with an argument,
# which is an ignore count to set on the currently stopped-at breakpoint.
# (Also verify that GDB gracefully handles the case where the inferior
# isn't stopped at a breakpoint.)
#
if ![runto_main] then { fail "enable/disable break tests suppressed" }

send_gdb "break 79\n"
gdb_expect {
  -re "Breakpoint \[0-9\]*.*, line 79.*$gdb_prompt $"\
          {pass "prepare to continue with ignore count"}
  -re "$gdb_prompt $"\
          {fail "prepare to continue with ignore count"}
  timeout {fail "(timeout) prepare to continue with ignore count"}
}
send_gdb "continue 2\n"
gdb_expect {
  -re "Will ignore next crossing of breakpoint \[0-9\]*.  Continuing..*$gdb_prompt $"\
          {pass "continue with ignore count"}
  -re "$gdb_prompt $"\
          {fail "continue with ignore count"}
  timeout {fail "(timeout) continue with ignore count"}
}

send_gdb "next\n"
gdb_expect {
  -re ".*81\[ \t\]*marker1.*$gdb_prompt $"\
          {pass "step after continue with ignore count"}
  -re "$gdb_prompt $"\
          {fail "step after continue with ignore count"}
  timeout {fail "(timeout) step after continue with ignore count"}
}

# ??rehrauer: Huh.  This appears to be an actual bug.  (No big
# surprise, since this feature hasn't been tested...)  Looks like
# GDB is currently trying to set the ignore count of bp # -1!
#
setup_xfail hppa_*_*
send_gdb "continue 2\n"
gdb_expect {
  -re "Not stopped at any breakpoint; argument ignored..*$gdb_prompt $"\
          {pass "continue with ignore count, not stopped at bpt"}
  -re "No breakpoint number -1.*$gdb_prompt $"\
          {xfail "(DTS'd) continue with ignore count, not stopped at bpt"}
  -re "$gdb_prompt $"\
          {fail "continue with ignore count, not stopped at bpt"}
  timeout {fail "(timeout) step after continue with ignore count, not stopped at bpt"}
}

gdb_exit
return 0