From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 27139 invoked by alias); 22 Mar 2008 22:06:15 -0000 Received: (qmail 27129 invoked by uid 22791); 22 Mar 2008 22:06:14 -0000 X-Spam-Check-By: sourceware.org Received: from viper.snap.net.nz (HELO viper.snap.net.nz) (202.37.101.8) by sourceware.org (qpsmtpd/0.31) with ESMTP; Sat, 22 Mar 2008 22:05:48 +0000 Received: from kahikatea.snap.net.nz (183.30.255.123.static.snap.net.nz [123.255.30.183]) by viper.snap.net.nz (Postfix) with ESMTP id 5FABF3DA470; Sun, 23 Mar 2008 11:05:45 +1300 (NZDT) Received: by kahikatea.snap.net.nz (Postfix, from userid 1000) id 4DF038FC6D; Sun, 23 Mar 2008 10:05:42 +1200 (NZST) From: Nick Roberts To: Daniel Jacobowitz Cc: Pedro Alves , gdb-patches@sourceware.org Subject: Re: linux native async mode support In-Reply-To: <20080322012535.GA9255@caradoc.them.org> References: <200803140810.22883.pedro@codesourcery.com> <20080314211646.GK31663@caradoc.them.org> <200803171605.24276.pedro@codesourcery.com> <18399.1872.669733.441391@kahikatea.snap.net.nz> <20080321154856.GM25307@caradoc.them.org> <18404.15944.939015.419140@kahikatea.snap.net.nz> <20080322012535.GA9255@caradoc.them.org> X-Mailer: VM 7.19 under Emacs 22.1.92.2 Message-Id: <20080322220542.4DF038FC6D@kahikatea.snap.net.nz> Date: Sat, 22 Mar 2008 22:06:00 -0000 X-IsSubscribed: yes Mailing-List: contact gdb-patches-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: gdb-patches-owner@sourceware.org X-SW-Source: 2008-03/txt/msg00336.txt.bz2 > > (gdb) start > > Breakpoint 1 at 0x804862c: file myprog.c, line 95. > > Starting program: /home/nickrob/myprog > > main (argc=1, argv=0xbfe3b904) at myprog.c:95 > > 95 main (int argc, char **argv) { > > (gdb) maintenance set linux-async on > > Cannot change this setting while the inferior is running. > > Right, gotta do it after gdb_start but before anything else. OK. For some reason I was (mistakenly) thinking mi_gdb_start started the inferior. > > > and [isnative] && [istarget *-linux*] to limit > > > it to platforms with the new command for now. > > > > I will do this. > > Thank you! Attached below. I've added [board_info gdb_protocol] == "async" since "target async" works after Vladimir's changes. The tests for async output of CLI commands are really motivated by my interest in such commands being entered from the GUD buffer in Emacs. There really should be tests which have a general relevance to async mode, e.g., interrupt (not documented in the manual) or -exec-interrupt but this would require a different executable for the tests. -- Nick http://www.inet.net.nz/~nickrob # Copyright 2008 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 2 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, write to the Free Software # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. # # Test asynchronous Machine Interface (MI) operations # # This currently only works with native linux and the async remote protocol. if { !([isnative] && [istarget *-linux*]) \ && [board_info gdb_protocol] != "async" } then { return } # The plan is for async mode to become the default but toggle for now. set saved_gdbflags $GDBFLAGS set GDBFLAGS "-ex \"maint set linux-async on\"" load_lib mi-support.exp gdb_exit if [mi_gdb_start] { continue } set testfile "basics" set srcfile ${testfile}.c set binfile ${objdir}/${subdir}/${testfile} if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" executable {debug additional_flags=-DFAKEARGV}] != "" } { untested mi-async.exp return -1 } mi_delete_breakpoints mi_gdb_reinitialize_dir $srcdir/$subdir mi_gdb_load ${binfile} # mi_gdb_test cannot be used for asynchronous commands because there are # two prompts involved and this can lead to a race condition. proc linux_async_tests {} { global mi_gdb_prompt global hex set line_main_head [gdb_get_line_number "main ("] set line_main_body [expr $line_main_head + 2] set line_main_next [expr $line_main_head + 3] send_gdb "start\n" gdb_expect { -re ".*\\^running\r\n\\^done\r\n$mi_gdb_prompt" { gdb_expect { -re "\\*stopped,thread-id=\"0\",frame=\{addr=\"$hex\",func=\"main\",args=\\\[\\\],file=\".*basics.c\",line=\"$line_main_body\"\}\r\n$mi_gdb_prompt$" { pass "Asynchronous response after start command" } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after start command (2)" } timeout { fail "Asynchronous response after start command (timeout 2)" } } } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after start command (1)" } timeout {fail "Asynchronous response after start command (timeout 1)"} } send_gdb "next\n" gdb_expect { -re "\\^running\r\n\\^done\r\n$mi_gdb_prompt" { gdb_expect { -re "\\*stopped,reason=\"end-stepping-range\",thread-id=\"0\",frame=\{addr=\"$hex\",func=\"main\",args=\\\[\\\],file=\".*basics.c\",line=\"$line_main_next\"\}\r\n$mi_gdb_prompt$" { pass "Asynchronous response after next command" } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after next command (2)" } timeout { fail "Asynchronous response after next command (timeout 2)" } } } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after next command (1)" } timeout {fail "Asynchronous response after next command (timeout 1)"} } mi_gdb_test "-exec-interrupt" \ "" \ "" send_gdb "start\n" gdb_expect { -re ".*\\^running\r\n\\^done\r\n$mi_gdb_prompt" { gdb_expect { -re "\\*stopped,thread-id=\"0\",frame=\{addr=\"$hex\",func=\"main\",args=\\\[\\\],file=\".*basics.c\",line=\"$line_main_body\"\}\r\n$mi_gdb_prompt$" { pass "Asynchronous response after (re) start" } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after (re) start (2)" } timeout { fail "Asynchronous response after (re) start (timeout 2)" } } } -re ".*$mi_gdb_prompt$" { fail "Asynchronous response after (re) start (1)" } timeout {fail "Asynchronous response after (re) start (timeout 1)"} } } #if [istarget "i386-*-linux-gnu"] then { linux_async_tests #} mi_gdb_exit set GDBFLAGS $saved_gdbflags return 0