a7c0469f99
This patch keeps the Scheme side of lazy string handling in sync with the python size, bringing over fixes for PRs python/17728, python/18439, python/18779. gdb/ChangeLog: * guile/scm-lazy-string.c (lazy_string_smob): Clarify use of LENGTH member. Change type of TYPE member to SCM. All uses updated. (lsscm_make_lazy_string_smob): Add assert. (lsscm_make_lazy_string): Flag bad length values. (lsscm_elt_type): New function. (gdbscm_lazy_string_to_value): Rewrite to use lsscm_safe_lazy_string_to_value. (lsscm_safe_lazy_string_to_value): Fix handling of TYPE_CODE_PTR. * guile/scm-value.c (gdbscm_value_to_lazy_string): Flag bad length values. Fix TYPE_CODE_PTR. Handle TYPE_CODE_ARRAY. Handle typedefs in incoming type. * guile/guile-internal.h (tyscm_scm_to_type): Declare. * guile/scm-type.c (tyscm_scm_to_type): New function. gdb/testsuite/ChangeLog: * gdb.guile/scm-value.c (main) Delete locals sptr, sn. * gdb.guile/scm-lazy-string.c: New file. * gdb.guile/scm-value.exp: Move lazy string tests to ... * gdb.guile/scm-lazy-string.exp: ... here, new file. Add more tests for pointer, array, typedef lazy strings.
83 lines
3.7 KiB
Plaintext
83 lines
3.7 KiB
Plaintext
# Copyright (C) 2008-2016 Free Software Foundation, Inc.
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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# This file is part of the GDB testsuite.
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# It tests the mechanism exposing lazy strings to Guile.
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load_lib gdb-guile.exp
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standard_testfile
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if { [prepare_for_testing ${testfile}.exp ${testfile} ${srcfile}] } {
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return
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}
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# Skip all tests if Guile scripting is not enabled.
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if { [skip_guile_tests] } { continue }
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#gdb_install_guile_utils
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#gdb_install_guile_module
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# The following tests require execution.
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if ![gdb_guile_runto_main] {
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fail "Can't run to main"
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return
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}
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gdb_breakpoint [gdb_get_line_number "break here"]
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gdb_continue_to_breakpoint "break here"
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gdb_scm_test_silent_cmd "gu (define null (parse-and-eval \"null\"))" 1
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gdb_scm_test_silent_cmd "gu (define nullstr (value->lazy-string null #:length 0))" "create a null lazy string" 1
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gdb_test "gu (print (lazy-string-length nullstr))" "= 0" "null lazy string length"
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gdb_test "gu (print (lazy-string-address nullstr))" "= 0" "null lazy string address"
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gdb_test "gu (print (lazy-string-type nullstr))" "const char \\*" "null lazy string type"
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gdb_test "gu (print (lazy-string->value nullstr))" \
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"Out of range: cannot create a value from NULL.*Error while executing Scheme code." \
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"create value from NULL"
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gdb_test "gu (print (lazy-string->value (value->lazy-string null #:length 3)))" \
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"Out of range: cannot create a lazy string with address 0x0, and a non-zero length.*Error while executing Scheme code." \
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"null lazy string with non-zero length"
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gdb_test "gu (print (value->lazy-string null #:length -2))" \
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"Out of range: invalid length.*Error while executing Scheme code." \
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"bad length"
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foreach var_spec { { "ptr" "pointer" "const char \\*" -1 } \
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{ "array" "array" "const char \\[6\\]" 6 } \
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{ "typedef_ptr" "typedef pointer" "pointer" -1 } } {
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set var [lindex $var_spec 0]
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set value [lindex $var_spec 1]
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set type [lindex $var_spec 2]
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set length [lindex $var_spec 3]
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with_test_prefix $var {
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gdb_test "print $var" "\"$value\""
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gdb_scm_test_silent_cmd "gu (define $var (history-ref 0))" "get value from history" 1
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gdb_scm_test_silent_cmd "gu (define l$var (value->lazy-string $var))" "acquire lazy string" 1
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gdb_test "gu (print (value-type $var))" "$type" "string type name equality"
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gdb_test "gu (print (lazy-string-type l$var))" "$type" "lazy-string type name equality"
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gdb_test "gu (print (lazy-string-length l$var))" "$length" "lazy string length"
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gdb_test "gu (print (lazy-string->value l$var))" "\"$value\"" "lazy string value"
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gdb_scm_test_silent_cmd "gu (define l2$var (value->lazy-string $var #:length 2))" "acquire lazy string, length 2" 1
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gdb_test "gu (print (lazy-string-length l2$var))" "2" "lazy string length 2"
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gdb_test "gu (print (lazy-string->value l2$var))" "\"[string range $value 0 1]\"" "lazy string length 2 value"
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# This test will have to wait until gdb can handle it. There's no way,
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# currently, to internally specify an array of length zero in the C
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# language support. PR 20786
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#gdb_test "gu (print (lazy-string->value (value->lazy-string $var #:length 0)))" "\"\"" "empty lazy string value"
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}
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}
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