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# Copyright (C) 1988, 1990, 1991, 1992, 1994, 1997, 1998
# 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
# This file was written by Rob Savoye. (rob@cygnus.com)
if $tracelevel then {
strace $tracelevel
}
#
# 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 additional_flags=-w}] != "" } {
gdb_suppress_entire_file "Testcase compile failed, so all tests in this file will automatically fail."
}
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if [get_compiler_info ${binfile}] {
return -1
}
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gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir
gdb_load ${binfile}
if [target_info exists gdb_stub] {
gdb_step_for_stub;
}
#
# test simple breakpoint setting commands
#
# Test deleting all breakpoints when there are none installed,
# GDB should not prompt for confirmation.
# Note that gdb-init.exp provides a "delete_breakpoints" proc
# for general use elsewhere.
send_gdb "delete breakpoints\n"
gdb_expect {
-re "Delete all breakpoints.*$" {
send_gdb "y\n"
gdb_expect {
-re "$gdb_prompt $" {
fail "Delete all breakpoints when none (unexpected prompt)"
}
timeout { fail "Delete all breakpoints when none (timeout after unexpected prompt)" }
}
}
-re ".*$gdb_prompt $" { pass "Delete all breakpoints when none" }
timeout { fail "Delete all breakpoints when none (timeout)" }
}
#
# test break at function
#
gdb_test "break main" \
"Breakpoint.*at.* file .*$srcfile, line.*" \
"breakpoint function"
#
# test break at function in file
#
gdb_test "break $srcfile:factorial" \
"Breakpoint.*at.* file .*$srcfile, line.*" \
"breakpoint function in file"
#
# test break at line number
#
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gdb_test "break 79" \
"Breakpoint.*at.* file .*$srcfile, line 79\\." \
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"breakpoint line number"
#
# test duplicate breakpoint
#
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gdb_test "break 79" \
"Note: breakpoint \[0-9\]+ also set at pc.*Breakpoint \[0-9\]+ at.* file .*$srcfile, line 79\\." \
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"breakpoint duplicate"
#
# test break at line number in file
#
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gdb_test "break $srcfile:85" \
"Breakpoint.*at.* file .*$srcfile, line 85\\." \
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"breakpoint line number in file"
#
# check to see what breakpoints are set
#
if [target_info exists gdb_stub] {
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set main_line 72
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} else {
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set main_line 75
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}
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if {$hp_aCC_compiler} {
set proto "\\(int\\)"
} else {
set proto ""
}
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gdb_test "info break" \
"Num Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:$main_line.*
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\[0-9\]+\[\t \]+breakpoint keep y.* in factorial$proto at .*$srcfile:95.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:79.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:79.*
\[0-9\]+\[\t \]+breakpoint keep y.* in main at .*$srcfile:85" \
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"breakpoint info"
# FIXME: The rest of this test doesn't work with anything that can't
# handle arguments.
# Huh? There doesn't *appear* to be anything that passes arguments
# below.
if [istarget "mips-idt-*"] then {
return
}
#
# run until the breakpoint at main is hit. For non-stubs-using targets.
#
if ![target_info exists use_gdb_stub] {
if [istarget "*-*-vxworks*"] then {
send_gdb "run vxmain \"2\"\n"
set timeout 120
verbose "Timeout is now $timeout seconds" 2
} else {
send_gdb "run\n"
}
gdb_expect {
-re "The program .* has been started already.*y or n. $" {
send_gdb "y\n"
exp_continue
}
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-re "Starting program.*Breakpoint \[0-9\]+,.*main .*argc.*argv.* at .*$srcfile:75.*75\[\t \]+if .argc.* \{.*$gdb_prompt $"\
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{ pass "run until function breakpoint" }
-re ".*$gdb_prompt $" { fail "run until function breakpoint" }
timeout { fail "run until function breakpoint (timeout)" }
}
} else {
if ![target_info exists gdb_stub] {
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gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:75.*75\[\t \]+if .argc.*\{" "stub continue"
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}
}
#
# run until the breakpoint at a line number
#
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gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:79.*79\[\t \]+printf.*factorial.*" \
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"run until breakpoint set at a line number"
#
# Run until the breakpoint set in a function in a file
#
for {set i 6} {$i >= 1} {incr i -1} {
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gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, factorial \\(value=$i\\) at .*$srcfile:95.*95\[\t \]+.*if .value > 1. \{.*" \
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"run until file:function($i) breakpoint"
}
#
# run until the file:function breakpoint at a line number in a file
#
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gdb_test continue "Continuing\\..*Breakpoint \[0-9\]+, main \\(argc=.*, argv=.*, envp=.*\\) at .*$srcfile:85.*85\[\t \]+return 0;" \
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"run until file:linenum breakpoint"
#
# delete all breakpoints so we can start over, course this can be a test too
#
delete_breakpoints
#
# test temporary breakpoint at function
#
gdb_test "tbreak main" "Breakpoint.*at.* file .*$srcfile, line.*" "Temporary breakpoint function"
#
# test break at function in file
#
gdb_test "tbreak $srcfile:factorial" "Breakpoint.*at.* file .*$srcfile, line.*" \
"Temporary breakpoint function in file"
#
# test break at line number
#
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send_gdb "tbreak 79\n"
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gdb_expect {
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-re "Breakpoint.*at.* file .*$srcfile, line 79.*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
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-re ".*$gdb_prompt $" { pass "Temporary breakpoint line number #1" }
timeout { fail "breakpoint line number #1 (timeout)" }
}
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gdb_test "tbreak 75" "Breakpoint.*at.* file .*$srcfile, line 75.*" "Temporary breakpoint line number #2"
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#
# test break at line number in file
#
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send_gdb "tbreak $srcfile:85\n"
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gdb_expect {
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-re "Breakpoint.*at.* file .*$srcfile, line 85.*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
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-re ".*$gdb_prompt $" { pass "Temporary breakpoint line number in file #1" }
timeout { fail "Temporary breakpoint line number in file #1 (timeout)" }
}
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gdb_test "tbreak $srcfile:81" "Breakpoint.*at.* file .*$srcfile, line 81.*" "Temporary breakpoint line number in file #2"
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#
# check to see what breakpoints are set (temporary this time)
#
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gdb_test "info break" "Num Type.*Disp Enb Address.*What.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:$main_line.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in factorial$proto at .*$srcfile:95.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:79.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:75.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:85.*\[\r\n\]
\[0-9\]+\[\t \]+breakpoint del.*y.*in main at .*$srcfile:81.*" \
"Temporary breakpoint info"
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#***********
# Verify that catchpoints for fork, vfork and exec don't trigger
# inappropriately. (There are no calls to those system functions
# in this test program.)
#
if ![runto_main] then { fail "break tests suppressed" }
send_gdb "catch\n"
gdb_expect {
-re "Catch requires an event name.*$gdb_prompt $"\
{pass "catch requires an event name"}
-re "$gdb_prompt $"\
{fail "catch requires an event name"}
timeout {fail "(timeout) catch requires an event name"}
}
set name "set catch fork, never expected to trigger"
send_gdb "catch fork\n"
gdb_expect {
-re "Catchpoint \[0-9\]* .fork..*$gdb_prompt $"
{pass $name}
-re "Catch of fork not yet implemented.*$gdb_prompt $"
{pass $name}
-re "$gdb_prompt $"
{fail $name}
timeout {fail "(timeout) $name"}
}
set name "set catch vfork, never expected to trigger"
send_gdb "catch vfork\n"
# If we are on HP-UX 10.20, we expect an error message to be
# printed if we type "catch vfork" at the gdb gdb_prompt. This is
# because on HP-UX 10.20, we cannot catch vfork events.
if [istarget "hppa*-hp-hpux10.20"] then {
gdb_expect {
-re "Catch of vfork events not supported on HP-UX 10.20..*$gdb_prompt $"
{pass $name}
-re "$gdb_prompt $"
{fail $name}
timeout {fail "(timeout) $name"}
}
} else {
gdb_expect {
-re "Catchpoint \[0-9\]* .vfork..*$gdb_prompt $"
{pass $name}
-re "Catch of vfork not yet implemented.*$gdb_prompt $"
{pass $name}
-re "$gdb_prompt $"
{fail $name}
timeout {fail "(timeout) $name"}
}
}
set name "set catch exec, never expected to trigger"
send_gdb "catch exec\n"
gdb_expect {
-re "Catchpoint \[0-9\]* .exec..*$gdb_prompt $"
{pass $name}
-re "Catch of exec not yet implemented.*$gdb_prompt $"
{pass $name}
-re "$gdb_prompt $" {fail $name}
timeout {fail "(timeout) $name"}
}
# Verify that "until <location>" works. (This is really just syntactic
# sugar for "tbreak <location>; continue".)
#
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send_gdb "until 79\n"
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gdb_expect {
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-re "main .* at .*:79.*$gdb_prompt $"\
{pass "until 79"}
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-re "$gdb_prompt $"\
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{fail "until 79"}
timeout {fail "(timeout) until 79"}
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}
# Verify that a malformed "until" is gracefully caught.
#
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send_gdb "until 80 then stop\n"
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gdb_expect {
-re "Junk at end of arguments..*$gdb_prompt $"\
{pass "malformed until"}
-re "$gdb_prompt $"\
{fail "malformed until"}
timeout {fail "(timeout) malformed until"}
}
# Verify that GDB responds gracefully when asked to set a breakpoint
# on a nonexistent source line.
#
send_gdb "break 999\n"
gdb_expect {
-re "No line 999 in file .*$gdb_prompt $"\
{pass "break on non-existent source line"}
-re "$gdb_prompt $"\
{fail "break on non-existent source line"}
timeout {fail "(timeout) break on non-existent source line"}
}
# Verify that GDB allows one to just say "break", which is treated
# as the "default" breakpoint. Note that GDB gets cute when printing
# the informational message about other breakpoints at the same
# location. We'll hit that bird with this stone too.
#
send_gdb "break\n"
gdb_expect {
-re "Breakpoint \[0-9\]*.*$gdb_prompt $"\
{pass "break on default location, 1st time"}
-re "$gdb_prompt $"\
{fail "break on default location, 1st time"}
timeout {fail "(timeout) break on default location, 1st time"}
}
send_gdb "break\n"
gdb_expect {
-re "Note: breakpoint \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
{pass "break on default location, 2nd time"}
-re "$gdb_prompt $"\
{fail "break on default location, 2nd time"}
timeout {fail "(timeout) break on default location, 2nd time"}
}
send_gdb "break\n"
gdb_expect {
-re "Note: breakpoints \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
{pass "break on default location, 3rd time"}
-re "$gdb_prompt $"\
{fail "break on default location, 3rd time"}
timeout {fail "(timeout) break on default location, 3rd time"}
}
send_gdb "break\n"
gdb_expect {
-re "Note: breakpoints \[0-9\]*, \[0-9\]* and \[0-9\]* also set at .*Breakpoint \[0-9\]*.*$gdb_prompt $"\
{pass "break on default location, 4th time"}
-re "$gdb_prompt $"\
{fail "break on default location, 4th time"}
timeout {fail "(timeout) break on default location, 4th time"}
}
# Verify that a "silent" breakpoint can be set, and that GDB is indeed
# "silent" about its triggering.
#
if ![runto_main] then { fail "break tests suppressed" }
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send_gdb "break 79\n"
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gdb_expect {
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-re "Breakpoint (\[0-9\]*) at .*, line 79.*$gdb_prompt $"\
{pass "set to-be-silent break 79"}
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-re "$gdb_prompt $"\
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{fail "set to-be-silent break 79"}
timeout {fail "(timeout) set to-be-silent break 79"}
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}
send_gdb "commands $expect_out(1,string)\n"
send_gdb "silent\n"
send_gdb "end\n"
gdb_expect {
-re ".*$gdb_prompt $"\
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{pass "set silent break 79"}
timeout {fail "(timeout) set silent break 79"}
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}
send_gdb "info break $expect_out(1,string)\n"
gdb_expect {
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-re "\[0-9\]*\[ \t\]*breakpoint.*:79\r\n\[ \t\]*silent.*$gdb_prompt $"\
{pass "info silent break 79"}
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-re "$gdb_prompt $"\
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{fail "info silent break 79"}
timeout {fail "(timeout) info silent break 79"}
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}
send_gdb "continue\n"
gdb_expect {
-re "Continuing.\r\n$gdb_prompt $"\
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{pass "hit silent break 79"}
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-re "$gdb_prompt $"\
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{fail "hit silent break 79"}
timeout {fail "(timeout) hit silent break 79"}
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}
send_gdb "bt\n"
gdb_expect {
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-re "#0 main .* at .*:79.*$gdb_prompt $"\
{pass "stopped for silent break 79"}
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-re "$gdb_prompt $"\
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{fail "stopped for silent break 79"}
timeout {fail "(timeout) stopped for silent break 79"}
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}
# Verify that GDB can at least parse a breakpoint with the
# "thread" keyword. (We won't attempt to test here that a
# thread-specific breakpoint really triggers appropriately.
# The gdb.threads subdirectory contains tests for that.)
#
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send_gdb "break 80 thread 999\n"
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gdb_expect {
-re "Unknown thread 999.*$gdb_prompt $"\
{pass "thread-specific breakpoint on non-existent thread disallowed"}
-re "$gdb_prompt $"\
{fail "thread-specific breakpoint on non-existent thread disallowed"}
timeout {fail "(timeout) thread-specific breakpoint on non-existent thread disallowed"}
}
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send_gdb "break 80 thread foo\n"
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gdb_expect {
-re "Junk after thread keyword..*$gdb_prompt $"\
{pass "thread-specific breakpoint on bogus thread ID disallowed"}
-re "$gdb_prompt $"\
{fail "thread-specific breakpoint on bogus thread ID disallowed"}
timeout {fail "(timeout) thread-specific breakpoint on bogus thread ID disallowed"}
}
# Verify that GDB responds gracefully to a breakpoint command with
# trailing garbage.
#
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send_gdb "break 80 foo\n"
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gdb_expect {
-re "Junk at end of arguments..*$gdb_prompt $"\
{pass "breakpoint with trailing garbage disallowed"}
-re "$gdb_prompt $"\
{fail "breakpoint with trailing garbage disallowed"}
timeout {fail "(timeout) breakpoint with trailing garbage disallowed"}
}
# Verify that GDB responds gracefully to a "clear" command that has
# no matching breakpoint. (First, get us off the current source line,
# which we know has a breakpoint.)
#
send_gdb "next\n"
gdb_expect {
-re ".*$gdb_prompt $"\
{pass "step over breakpoint"}
timeout {fail "(timeout) step over breakpoint"}
}
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send_gdb "clear 81\n"
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gdb_expect {
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-re "No breakpoint at 81..*$gdb_prompt $"\
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{pass "clear line has no breakpoint disallowed"}
-re "$gdb_prompt $"\
{fail "clear line has no breakpoint disallowed"}
timeout {fail "(timeout) clear line has no breakpoint disallowed"}
}
send_gdb "clear\n"
gdb_expect {
-re "No breakpoint at this line..*$gdb_prompt $"\
{pass "clear current line has no breakpoint disallowed"}
-re "$gdb_prompt $"\
{fail "clear current line has no breakpoint disallowed"}
timeout {fail "(timeout) clear current line has no breakpoint disallowed"}
}
# Verify that a breakpoint can be set via a convenience variable.
#
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send_gdb "set \$foo=81\n"
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gdb_expect {
-re "$gdb_prompt $"\
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{pass "set convenience variable \$foo to 81"}
timeout {fail "(timeout) set convenience variable \$foo to 81"}
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}
send_gdb "break \$foo\n"
gdb_expect {
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-re "Breakpoint (\[0-9\]*) at .*, line 81.*$gdb_prompt $"\
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{pass "set breakpoint via convenience variable"}
-re "$gdb_prompt $"\
{fail "set breakpoint via convenience variable"}
timeout {fail "(timeout) set breakpoint via convenience variable"}
}
# Verify that GDB responds gracefully to an attempt to set a
# breakpoint via a convenience variable whose type is not integer.
#
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send_gdb "set \$foo=81.5\n"
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gdb_expect {
-re "$gdb_prompt $"\
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{pass "set convenience variable \$foo to 81.5"}
timeout {fail "(timeout) set convenience variable \$foo to 81.5"}
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}
send_gdb "break \$foo\n"
gdb_expect {
-re "Convenience variables used in line specs must have integer values..*$gdb_prompt $"\
{pass "set breakpoint via non-integer convenience variable disallowed"}
-re "$gdb_prompt $"\
{fail "set breakpoint via non-integer convenience variable disallowed"}
timeout {fail "(timeout) set breakpoint via non-integer convenience variable disallowed"}
}
# Verify that we can set and trigger a breakpoint in a user-called function.
#
send_gdb "break marker2\n"
gdb_expect {
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-re "Breakpoint (\[0-9\]*) at .*, line 4\[49\].*$gdb_prompt $"\
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{pass "set breakpoint on to-be-called function"}
-re "$gdb_prompt $"\
{fail "set breakpoint on to-be-called function"}
timeout {fail "(timeout) set breakpoint on to-be-called function"}
}
send_gdb "print marker2(99)\n"
gdb_expect {
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-re "The program being debugged stopped while in a function called from GDB.\r\nWhen the function .marker2$proto. is done executing, GDB will silently\r\nstop .instead of continuing to evaluate the expression containing\r\nthe function call...*$gdb_prompt $"\
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{pass "hit breakpoint on called function"}
-re "$gdb_prompt $"\
{fail "hit breakpoint on called function"}
timeout {fail "(timeout) hit breakpoint on called function"}
}
# As long as we're stopped (breakpointed) in a called function,
# verify that we can successfully backtrace & such from here.
#
if [istarget "hppa*-*-hpux*"] then {
send_gdb "bt\n"
gdb_expect {
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-re "#0\[ \t\]*marker2.*:4\[49\]\r\n#1.*_sr4export.*$gdb_prompt $"\
{pass "backtrace while in called function"}
-re "#0\[ \t\]*marker2.*:4\[49\]\r\n#1.*function called from gdb.*$gdb_prompt $"\
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{pass "backtrace while in called function"}
-re "$gdb_prompt $"\
{fail "backtrace while in called function"}
timeout {fail "(timeout) backtrace while in called function"}
}
send_gdb "finish\n"
gdb_expect {
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-re "Run till exit from .*marker2.* at .*4\[49\]\r\n.* in _sr4export.*$gdb_prompt $"\
{pass "finish from called function"}
-re "Run till exit from .*marker2.* at .*4\[49\]\r\n.*function called from gdb.*$gdb_prompt $"\
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{pass "finish from called function"}
-re "$gdb_prompt $"\
{fail "finish from called function"}
timeout {fail "(timeout) finish from called function"}
}
}
# Verify that GDB responds gracefully to a "finish" command with
# arguments.
#
if ![runto_main] then { fail "break tests suppressed" }
send_gdb "finish 123\n"
gdb_expect {
-re "The \"finish\" command does not take any arguments.\r\n$gdb_prompt $"\
{pass "finish with arguments disallowed"}
-re "$gdb_prompt $"\
{fail "finish with arguments disallowed"}
timeout {fail "(timeout) finish with arguments disallowed"}
}
# Verify that GDB responds gracefully to a request to "finish" from
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# the outermost frame. On a stub that never exits, this will just
# run to the stubs routine, so we don't get this error... Thus the
# second condition.
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#
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send_gdb "finish\n"
gdb_expect {
-re "\"finish\" not meaningful in the outermost frame.\r\n$gdb_prompt $"\
{pass "finish from outermost frame disallowed"}
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-re "Run till exit from.*" {
pass "finish from outermost frame disallowed"
}
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-re "$gdb_prompt $"\
{fail "finish from outermost frame disallowed"}
timeout {fail "(timeout) finish from outermost frame disallowed"}
}
# Verify that we can explicitly ask GDB to stop on all shared library
# events, and that it does so.
#
if [istarget "hppa*-*-hpux*"] then {
if ![runto_main] then { fail "break tests suppressed" }
send_gdb "set stop-on-solib-events 1\n"
gdb_expect {
-re "$gdb_prompt $"\
{pass "set stop-on-solib-events"}
timeout {fail "(timeout) set stop-on-solib-events"}
}
send_gdb "run\n"
gdb_expect {
-re ".*Start it from the beginning.*y or n. $"\
{send_gdb "y\n"
gdb_expect {
-re ".*Stopped due to shared library event.*$gdb_prompt $"\
{pass "triggered stop-on-solib-events"}
-re "$gdb_prompt $"\
{fail "triggered stop-on-solib-events"}
timeout {fail "(timeout) triggered stop-on-solib-events"}
}
}
-re "$gdb_prompt $"\
{fail "rerun for stop-on-solib-events"}
timeout {fail "(timeout) rerun for stop-on-solib-events"}
}
send_gdb "set stop-on-solib-events 0\n"
gdb_expect {
-re "$gdb_prompt $"\
{pass "reset stop-on-solib-events"}
timeout {fail "(timeout) reset stop-on-solib-events"}
}
}
# Hardware breakpoints are unsupported on HP-UX. Verify that GDB
# gracefully responds to requests to create them.
#
if [istarget "hppa*-*-hpux*"] then {
if ![runto_main] then { fail "break tests suppressed" }
send_gdb "hbreak\n"
gdb_expect {
-re "No hardware breakpoint support in the target.*$gdb_prompt $"\
{pass "hw breaks disallowed"}
-re "$gdb_prompt $"\
{fail "hw breaks disallowed"}
timeout {fail "(timeout) hw breaks disallowed"}
}
send_gdb "thbreak\n"
gdb_expect {
-re "No hardware breakpoint support in the target.*$gdb_prompt $"\
{pass "temporary hw breaks disallowed"}
-re "$gdb_prompt $"\
{fail "temporary hw breaks disallowed"}
timeout {fail "(timeout) temporary hw breaks disallowed"}
}
}
#********
proc test_clear_command {} {
gdb_test "break main" "Breakpoint.*at.*" "break main #1"
gdb_test "break main" "Breakpoint.*at.*" "break main #2"
# We don't test that it deletes the correct breakpoints. We do at
# least test that it deletes more than one breakpoint.
gdb_test "clear main" {Deleted breakpoints [0-9]+ [0-9]+.*}
}
#
# Test "next" over recursive function call.
#
proc test_next_with_recursion {} {
global gdb_prompt
global decimal
global binfile
if [target_info exists use_gdb_stub] {
# Reload the program.
delete_breakpoints
gdb_load ${binfile};
} else {
# FIXME: should be using runto
gdb_test "kill" "" "kill program" "Kill the program being debugged.*y or n. $" "y"
delete_breakpoints
}
gdb_test "break factorial" "Breakpoint $decimal at .*" "break at factorial"
# Run until we call factorial with 6
if [istarget "*-*-vxworks*"] then {
send_gdb "run vxmain \"6\"\n"
} else {
gdb_run_cmd
}
gdb_expect {
-re "Break.* factorial .value=6. .*$gdb_prompt $" {}
-re ".*$gdb_prompt $" {
fail "run to factorial(6)";
gdb_suppress_tests;
}
timeout { fail "run to factorial(6) (timeout)" ; gdb_suppress_tests }
}
# Continue until we call factorial recursively with 5.
if [gdb_test "continue" \
"Continuing.*Break.* factorial .value=5. .*" \
"continue to factorial(5)"] then { gdb_suppress_tests }
# Do a backtrace just to confirm how many levels deep we are.
if [gdb_test "backtrace" \
"#0\[ \t\]+ factorial .value=5..*" \
"backtrace from factorial(5)"] then { gdb_suppress_tests }
# Now a "next" should position us at the recursive call, which
# we will be performing with 4.
if [gdb_test "next" \
".* factorial .value - 1.;.*" \
"next to recursive call"] then { gdb_suppress_tests }
# Disable the breakpoint at the entry to factorial by deleting them all.
# The "next" should run until we return to the next line from this
# recursive call to factorial with 4.
# Buggy versions of gdb will stop instead at the innermost frame on
# the line where we are trying to "next" to.
delete_breakpoints
if [istarget "mips*tx39-*"] {
set timeout 60
} else {
set timeout 20
}
gdb_test next "\[0-9\]*\[\t \]+return \\(value\\);.*" \
"next over recursive call"
# OK, we should be back in the same stack frame we started from.
# Do a backtrace just to confirm.
set result [gdb_test "backtrace" \
"#0\[ \t\]+ factorial .value=120.*\r\n#1\[ \t\]+ \[0-9a-fx\]+ in factorial .value=6..*" \
"backtrace from factorial(5.1)"]
if { $result != 0 } { gdb_suppress_tests }
if [target_info exists gdb,noresults] { gdb_suppress_tests }
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gdb_continue_to_end "recursive next test"
gdb_stop_suppressing_tests;
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}
test_clear_command
test_next_with_recursion
# Reset the default arguments for VxWorks
if [istarget "*-*-vxworks*"] {
set timeout 10
verbose "Timeout is now $timeout seconds" 2
send_gdb "set args main\n"
gdb_expect -re ".*$gdb_prompt $" {}
}
