testsuite/gdb.base/pending.exp

#   Copyright 2003-2023 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 created by Jeff Johnston. (jjohnstn@redhat.com)

#
# test running programs
#

if {[skip_shlib_tests]} {
    return 0
}

standard_testfile .c
set libfile "pendshr"
set libsrc  $srcdir/$subdir/$libfile.c
set lib_sl  [standard_output_file $libfile.sl]

set lib_opts  debug
set exec_opts [list debug shlib=$lib_sl]

if { [gdb_compile_shlib $libsrc $lib_sl $lib_opts] != ""
     || [gdb_compile $srcdir/$subdir/$srcfile $binfile executable $exec_opts] != ""} {
    untested "failed to compile"
    return -1
}

# Start with a fresh gdb.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

gdb_test_multiple "break pendfunc1" "set pending breakpoint" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*pendfunc1.*pending." "set pending breakpoint (without symbols)"
     }
}

# Complete the condition (PR 15413).
gdb_test "complete condition " "condition 1"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendfunc1.*" \
"single pending breakpoint info (without symbols)"

with_test_prefix "first load" {
    gdb_load ${binfile}
    gdb_load_shlib $lib_sl
}

set pendfunc1_loc [gdb_get_line_number "y = x + 4" ${libfile}.c]

gdb_run_cmd

gdb_test "" \
".*Breakpoint.*pendfunc1.*at.*pendshr.c:$pendfunc1_loc.*y = x \\+ 4.*" \
"run to resolved breakpoint 1 (without symbols)"

# Restart with a fresh gdb.

gdb_exit
gdb_start
gdb_reinitialize_dir $srcdir/$subdir

with_test_prefix "second load" {
    gdb_load ${binfile}
    gdb_load_shlib $lib_sl
}

#
# Test setting, querying, and modifying pending breakpoints
#

gdb_test_multiple "break pendfunc1" "set pending breakpoint" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*pendfunc1.*pending." "set pending breakpoint"
     }
}

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendfunc1.*" \
"single pending breakpoint info"

#
# Test breaking at existing function
#

set mainline [gdb_get_line_number "break main here"]

gdb_test "break -q main" \
    "Breakpoint.*at.* file .*$srcfile, line $mainline.*" \
    "breakpoint function"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendfunc1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline" \
"pending plus real breakpoint info"


#
# Test not setting a pending breakpoint
#
gdb_test "break pendfunc2" \
    "" \
    "Don't set pending breakpoint" \
    ".*Make breakpoint pending.*y or \\\[n\\\]. $" \
    "n"

#
# Add condition to pending breakpoint
#

gdb_test_no_output "condition 1 k == 1"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline" \
"pending plus condition"

#
# Disable pending breakpoint
#

gdb_test_no_output "disable 1"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep n.*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline" \
"pending disabled"

#
# Add commands to pending breakpoint
#
gdb_test "commands 1\nprint k\nend" "" \
    "Set commands for pending breakpoint"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep n.*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline" \
"pending disabled plus commands"

#
# Try a pending break for a line in a source file with a condition
#

set bp2_loc [gdb_get_line_number "y = x + 4" ${libfile}.c]
gdb_test_multiple "break pendshr.c:$bp2_loc if x > 3" "set pending breakpoint 2" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*pendshr.c:$bp2_loc.*pending." \
		"Set pending breakpoint 2"
     }
}

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep n.*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendshr.c:$bp2_loc if x > 3.*" \
"multiple pending breakpoints"


#
# Try a pending break for a line in a source file with ignore count:
#

set bp3_loc [gdb_get_line_number "printf" ${libfile}.c]
gdb_test_multiple "break pendshr.c:$bp3_loc" "set pending breakpoint 3" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*pendshr.c:$bp3_loc.*pending." \
		"Set pending breakpoint 3"
     }
}

gdb_test {ignore $bpnum 2} "Will ignore next 2 crossings of breakpoint .*" \
    "set ignore count on pending breakpoint 3"

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep n.*PENDING.*pendfunc1.*
\[\t \]+stop only if k == 1.*
\[\t \]+print k.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendshr.c:$bp2_loc if x > 3.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*pendshr.c:$bp3_loc.*ignore next 2 hits.*" \
"multiple pending breakpoints 2"

#
# Run to main which should resolve a pending breakpoint
#

gdb_run_cmd
gdb_test "" \
".*Breakpoint.*, main.*$mainline.*" \
"running to main"

#
# Re-enable the first pending breakpoint which should resolve
#

gdb_test_no_output "enable 1" \
"re-enabling pending breakpoint that can resolve instantly"

#
# Continue to verify conditionals and commands for breakpoints are honored
#

gdb_test "continue" \
".*Breakpoint.*pendfunc1.*at.*pendshr.c:$bp2_loc.*4;" \
"continue to resolved breakpoint 2"

gdb_test "continue" \
".*Breakpoint.*pendfunc1.*at.*pendshr.c:$bp2_loc.*
\[$\]1 = 1." \
"continue to resolved breakpoint 1"

#
# Disable the other two breakpoints, and continue to the one with
# the ignore count.  Make sure you hit it the third time, x should
# be 3 then.
#

gdb_test "disable 7" "" "disable breakpoint 7"
gdb_test "disable 5" "" "disable breakpoint 5"

gdb_test "continue" \
	 ".*Breakpoint.*pendfunc1.*\\\(x=3\\\) at.*pendshr.c:$bp3_loc.*printf.*;" \
"continue to resolved breakpoint 3"

delete_breakpoints

gdb_breakpoint "main"

#
# Set non-existent pending breakpoint
#
gdb_test_multiple "break imaginary" "set imaginary pending breakpoint" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*imaginary.*pending." \
		"set imaginary pending breakpoint"
     }
}

#
# rerun program and make sure that any pending breakpoint remains and no
# error messages are issued for the missing function
#

rerun_to_main

gdb_test "info break" \
    "Num     Type\[ \]+Disp Enb Address\[ \]+What.*
\[0-9\]+\[\t \]+breakpoint     keep y.* in main at .*$srcfile:$mainline.*
\[0-9\]+\[\t \]+breakpoint     keep y.*PENDING.*imaginary.*" \
"verify pending breakpoint after restart"