gdb/testsuite/gdb.base/jump.exp

#   Copyright 1998-2024 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/>.  */


clear_xfail "*-*-*"

standard_testfile .c

if {[prepare_for_testing "failed to prepare" $testfile $srcfile]} {
    return -1
}

# General testing of the 'jump' command.  GDB is already started.
# There might be multiple inferior in the current debug session, in
# which case, the relevant inferior is already selected.
proc do_tests {} {
    # Set a breakpoint on the statement that we're about to jump to.
    # The statement doesn't contain a function call.
    set non_call_line [gdb_get_line_number "bp-on-non-call"]
    gdb_breakpoint "$non_call_line"
    set bp_on_non_call \
	[get_integer_valueof "\$bpnum" "INVALID" "bp_on_non_call"]

    # Can we jump to the statement?  Do we stop there?
    gdb_test "jump $non_call_line" \
	"Breakpoint ${bp_on_non_call}(\.${::decimal})?, .*${::srcfile}:$non_call_line.*" \
	"jump to non-call"

    # Set a breakpoint on the statement that we're about to jump to.
    # The statement does contain a function call.
    set call_line [gdb_get_line_number "bp-on-call"]
    gdb_breakpoint "$call_line"
    set bp_on_call [get_integer_valueof "\$bpnum" "INVALID" "bp_on_call"]

    # Can we jump to the statement?  Do we stop there?
    gdb_test "jump $call_line" \
	"Breakpoint ${bp_on_call}(\.${::decimal})?, .*${::srcfile}:$call_line.*" \
	"jump to call"

    # If we disable the breakpoint at the function call, and then
    # if we jump to that statement, do we not stop there, but at
    # the following breakpoint?
    gdb_test_no_output "disable $bp_on_call" "disable breakpoint on call"

    gdb_test "jump $call_line" \
	"Breakpoint ${bp_on_non_call}(\.${::decimal})?, .*${::srcfile}:$non_call_line.*" \
	"jump to call with disabled breakpoint"

    # Disable the breakpoint at the non-function call, so it won't hit
    # if do_test is called again.
    gdb_test_no_output "disable ${bp_on_non_call}" "disable bp_on_non_call"

    # Verify that GDB responds gracefully to the "jump" command without
    # an argument.
    gdb_test "jump" "Argument required .starting address.*" \
	"jump without argument disallowed"

    # Verify that GDB responds gracefully to the "jump" command with
    # trailing junk.
    gdb_test "jump $call_line 100" \
	"malformed linespec error: unexpected number, \"100\"" \
	"jump with trailing argument junk"

    # Verify that GDB responds gracefully to a request to jump out of
    # the current function.  (Note that this will very likely cause the
    # inferior to die.  Be prepared to rerun the inferior, if further
    # testing is desired.)
    # Try it both ways: confirming and not confirming the jump.
    set out_line [gdb_get_line_number "out-of-func"]
    gdb_test "jump $out_line" \
	"Not confirmed.*" \
	"aborted jump out of current function" \
	"Line $out_line is not in `main'.  Jump anyway.*y or n. $" \
	"n"

    gdb_test "jump $out_line" \
	"Continuing at.*" \
	"jump out of current function" \
	"Line $out_line is not in `main'.  Jump anyway.*y or n. $" \
	"y"
}

set num_inferiors 1
if {![use_gdb_stub]} {
    set num_inferiors 2
}

# Run to main, add inferiors if needed.
if {![runto_main]} {
    return -1
}
for {set inf 2} {$inf <= $num_inferiors} {incr inf} {
    # Start a new inferior, and run it with the same executable.
    gdb_test "add-inferior -exec ${binfile}" \
	"Added inferior ${inf}.*" \
	"add inferior ${inf} with -exec "
    gdb_test "inferior ${inf}" \
	"Switching to inferior ${inf} .*" \
	"switch to inferior ${inf}"
    if {![runto_main]} {
	return -1
    }
}

# Run tests on all inferiors.
for {set inf 1} {$inf <= $num_inferiors} {incr inf} {
    with_test_prefix "inferior $inf" {
	# Switch to the target inferior.
	gdb_test "inferior $inf" ".*Switching to inferior $inf .*"
	# Run the tests.
	do_tests
    }
}