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# Copyright (C) 2008-2019 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 is part of the GDB testsuite.
# It tests the mechanism exposing lazy strings to Guile.
load_lib gdb-guile.exp
standard_testfile
if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
return
}
# Skip all tests if Guile scripting is not enabled.
if { [skip_guile_tests] } { continue }
#gdb_install_guile_utils
#gdb_install_guile_module
# The following tests require execution.
if ![gdb_guile_runto_main] {
fail "can't run to main"
return
}
gdb_breakpoint [gdb_get_line_number "break here"]
gdb_continue_to_breakpoint "break here"
gdb_scm_test_silent_cmd "gu (define null (parse-and-eval \"null\"))" 1
gdb_scm_test_silent_cmd "gu (define nullstr (value->lazy-string null #:length 0))" "create a null lazy string" 1
gdb_test "gu (print (lazy-string-length nullstr))" "= 0" "null lazy string length"
gdb_test "gu (print (lazy-string-address nullstr))" "= 0" "null lazy string address"
gdb_test "gu (print (lazy-string-type nullstr))" "const char \\*" "null lazy string type"
gdb_test "gu (print (lazy-string->value nullstr))" \
"Out of range: cannot create a value from NULL.*Error while executing Scheme code." \
"create value from NULL"
gdb_test "gu (print (lazy-string->value (value->lazy-string null #:length 3)))" \
"Out of range: cannot create a lazy string with address 0x0, and a non-zero length.*Error while executing Scheme code." \
"null lazy string with non-zero length"
gdb_test "gu (print (value->lazy-string null #:length -2))" \
"Out of range: invalid length.*Error while executing Scheme code." \
"bad length"
foreach var_spec { { "ptr" "pointer" "const char \\*" -1 } \
{ "array" "array" "const char \\[6\\]" 6 } \
{ "typedef_ptr" "typedef pointer" "pointer" -1 } } {
set var [lindex $var_spec 0]
set value [lindex $var_spec 1]
set type [lindex $var_spec 2]
set length [lindex $var_spec 3]
with_test_prefix $var {
gdb_test "print $var" "\"$value\""
gdb_scm_test_silent_cmd "gu (define $var (history-ref 0))" "get value from history" 1
gdb_scm_test_silent_cmd "gu (define l$var (value->lazy-string $var))" "acquire lazy string" 1
gdb_test "gu (print (value-type $var))" "$type" "string type name equality"
gdb_test "gu (print (lazy-string-type l$var))" "$type" "lazy-string type name equality"
gdb_test "gu (print (lazy-string-length l$var))" "$length" "lazy string length"
gdb_test "gu (print (lazy-string->value l$var))" "\"$value\"" "lazy string value"
gdb_scm_test_silent_cmd "gu (define l2$var (value->lazy-string $var #:length 2))" "acquire lazy string, length 2" 1
gdb_test "gu (print (lazy-string-length l2$var))" "2" "lazy string length 2"
gdb_test "gu (print (lazy-string->value l2$var))" "\"[string range $value 0 1]\"" "lazy string length 2 value"
# This test will have to wait until gdb can handle it. There's no way,
# currently, to internally specify an array of length zero in the C
# language support. PR 20786
#gdb_test "gu (print (lazy-string->value (value->lazy-string $var #:length 0)))" "\"\"" "empty lazy string value"
}
}
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