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http://sourceware.org/ml/gdb-patches/2011-05/msg00002.html
Subject: [patch] testsuite: Test readline-6.2 "ask" regression
Hi,
this problem does not affect default FSF GDB build as it is using bundled
readline-5.1. But with system readline-6.2 and build using:
--with-system-readline use installed readline library
GDB will no longer ask about displaying too many symbols and dumps them all
immediately.
PASS:
$ gdb gdb
(gdb) p <tab><tab>
Display all 21482 possibilities? (y or n)_
FAIL:
$ gdb gdb
(gdb) p <tab><tab>
Display all 22129 possibilities? (y or n)
../../bfd/aout-target.h cs_to_section
../../bfd/aout32.c ctime
<screens and screens of dumps without any question>
This regression will soon start affecting distros:
FSF GDB HEAD - PASS - using bundled readline-5.1
fedora-15 - FAIL - using system readline-6.2
fedora-14 - PASS - using system readline-6.1
debian-6.0 - PASS - using system readline-6.1
kubuntu-10.10 - PASS - using system readline-6.1
I have asked about it on readline ml:
Re: [Bug-readline] callback mode pager disable status
https://lists.gnu.org/archive/html/bug-readline/2011-04/msg00012.html
The suggested workaround (in fact the readline-5.1 code state) going to patch
into the proposed FSF GDB bundled readline-6.2. Distros then can stop using
--with-system-readline to still feature recent and system matching readline
until readline-7.0 gets released.
This regression has been so far caught only with system debug infos installed:
-PASS: gdb.base/completion.exp: complete (2) 'p no_var_named_this-'
-PASS: gdb.base/completion.exp: complete 'p values[0].a'
-PASS: gdb.base/completion.exp: complete 'p values[0] . a'
-PASS: gdb.base/completion.exp: complete 'p &values[0] -> a'
-PASS: gdb.base/completion.exp: copmletion of field in anonymous union
+FAIL: gdb.base/completion.exp: (timeout) complete (2) 'p no_var_named_this-'
+FAIL: gdb.base/completion.exp: (timeout) complete 'p values[0].a' 2
+FAIL: gdb.base/completion.exp: (timeout) complete 'p values[0] . a' 2
+FAIL: gdb.base/completion.exp: (timeout) complete 'p &values[0] -> a' 2
+FAIL: gdb.base/completion.exp: copmletion of field in anonymous union
I will check it in with no comments.
Thanks,
Jan
gdb/testsuite/
2011-05-01 Jan Kratochvil <jan.kratochvil@redhat.com>
* gdb.base/readline-ask.c: New file.
* gdb.base/readline-ask.exp: New file.
* gdb.base/readline-ask.inputrc: New file.
--- /dev/null
+++ b/gdb/testsuite/gdb.base/readline-ask.c
@@ -0,0 +1,23 @@
+/* This testcase is part of GDB, the GNU debugger.
+
+ Copyright 2011 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/>. */
+
+int
+symbol_01_length_40_____________________,
+symbol_02_length_40_____________________,
+symbol_03_length_40_____________________,
+symbol_04_length_40_____________________,
+symbol_10_length_40_____________________;
--- /dev/null
+++ b/gdb/testsuite/gdb.base/readline-ask.exp
@@ -0,0 +1,118 @@
+# Copyright (C) 2011 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/>.
+
+set testfile readline-ask
+set executable ${testfile}.x
+set srcfile ${testfile}.c
+set binfile ${objdir}/${subdir}/${executable}
+set inputrc ${srcdir}/${subdir}/${testfile}.inputrc
+
+if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" object {debug}] != "" } {
+ untested ${testfile}.exp
+ return -1
+}
+
+# INPUTRC gets reset for the next testfile.
+setenv INPUTRC $inputrc
+clean_restart ${executable}
+
+gdb_test_no_output "set width 50"
+gdb_test_no_output "set height 3"
+
+set cmd "p symbol_0"
+send_gdb "$cmd\t"
+set test "bell for more message"
+gdb_test_multiple "" $test {
+ -re "$cmd\007$" {
+ pass $test
+ }
+}
+
+send_gdb "\t"
+set test "more message for 01 and 02"
+gdb_test_multiple "" $test {
+ -re "^\r\nsymbol_01_length_40_____________________\r\nsymbol_02_length_40_____________________\r\n--More--$" {
+ pass $test
+ }
+ -re "$gdb_prompt " {
+ fail $test
+ }
+}
+
+# There get some VT100 characters printed.
+
+send_gdb "\r"
+set test "more message for 03"
+gdb_test_multiple "" $test {
+ -re "\rsymbol_03_length_40_____________________\r\n--More--$" {
+ pass $test
+ }
+}
+
+# "$gdb_prompt $" will not match as $cmd gets output: $gdb_prompt p symbol_0
+# And "$gdb_prompt p symbol_0" cannot be matched as the default "$gdb_prompt $"
+# string from gdb_test_multiple could match earlier.
+
+send_gdb "\r"
+set test "more finish for 04"
+gdb_test_multiple "" $test {
+ -re "\rsymbol_04_length_40_____________________\r\n$gdb_prompt " {
+ pass $test
+ }
+}
+
+gdb_test "foo" {No symbol "symbol_0foo" in current context\.} "abort more message"
+
+set cmd "p symbol_"
+send_gdb "$cmd\t"
+set test "bell for ask message"
+gdb_test_multiple "" $test {
+ -re "$cmd\007$" {
+ pass $test
+ }
+}
+
+send_gdb "\t"
+set test "ask message"
+gdb_test_multiple "" $test {
+ -re "^\r\nDisplay all 5 possibilities\\? \\(y or n\\)$" {
+ pass $test
+ }
+ -re "$gdb_prompt " {
+ fail $test
+ return 0
+ }
+}
+
+send_gdb "y"
+set test "ask message for 01 and 02"
+gdb_test_multiple "" $test {
+ -re "^\r\nsymbol_01_length_40_____________________\r\nsymbol_02_length_40_____________________\r\n--More--$" {
+ pass $test
+ }
+}
+
+# There get some VT100 characters printed.
+# See the "$gdb_prompt " match like in "more finish for 04".
+
+send_gdb "n"
+set test "ask message no"
+gdb_test_multiple "" $test {
+ -re "\r$gdb_prompt " {
+ pass $test
+ }
+}
+
+gdb_test "foo" {No symbol "symbol_foo" in current context\.} "abort ask message"
--- /dev/null
+++ b/gdb/testsuite/gdb.base/readline-ask.inputrc
@@ -0,0 +1,16 @@
+# Copyright (C) 2011 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/>.
+
+set completion-query-items 5
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