gdb/testsuite/gdb.base/watchpoint-solib.exp

#   Copyright 2007-2024 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/>.

# The allow_hw_watchpoint_tests checks if watchpoints are supported by the
# processor.  On PowerPC, the check runs a small test program under gdb
# to determine if the Power processor supports HW watchpoints.  The check
# must be done before starting the test so as to not disrupt the execution
# of the actual test.

set allow_hw_watchpoint_tests_p [allow_hw_watchpoint_tests]

#
# test running programs
#


require allow_shlib_tests

set testfile "watchpoint-solib"
set libfile "watchpoint-solib-shr"
set libname "${libfile}.sl"
set libsrcfile ${libfile}.c
set srcfile $srcdir/$subdir/$testfile.c
set binfile [standard_output_file $testfile]
set shlibdir [standard_output_file {}]
set libsrc  $srcdir/$subdir/$libfile.c
set lib_sl  [standard_output_file $libname]
set lib_dlopen [shlib_target_file ${libname}]
set lib_syms [shlib_symbol_file ${libname}]

set lib_opts debug
set exec_opts [list debug shlib_load additional_flags=-DSHLIB_NAME=\"${lib_dlopen}\"]

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

clean_restart $binfile
gdb_load_shlib $lib_sl

runto_main

# Disable hardware watchpoints if necessary.
if {!$allow_hw_watchpoint_tests_p} {
    gdb_test_no_output "set can-use-hw-watchpoints 0" ""
}

# Test that if we set a watchpoint on a global variable
# in a explicitly loaded shared library, and then
# re-run the application, gdb does not crash.
gdb_test_multiple "break foo" "set pending breakpoint" {
     -re ".*Make breakpoint pending.*y or \\\[n\\\]. $" {
	    gdb_test "y" "Breakpoint.*foo.*pending." "set pending breakpoint"
     }
}

gdb_test "continue" ".*Breakpoint 2.*foo.*" "continue to foo"
gdb_test "watch g" "atchpoint 3: g" "set watchpoint on g"
gdb_test "continue" ".*New value = 1.*" "continue to watchpoint hit"
rerun_to_main

with_timeout_factor 30 {
    gdb_test "continue" ".*Breakpoint 2.*foo.*" "continue to foo again"
}

gdb_test "continue" ".*New value = 1.*" "continue to watchpoint hit again"