PR gdb/17471: Repeating a background command makes it foreground
When we repeat a command, by just pressing <ret>, the input from the
previous command is reused for the new command invocation.
When an execution command strips the "&" out of its incoming argument
string, to detect background execution, we poke a '\0' directly to the
incoming argument string.
Combine both, and a repeat of a background command loses the "&".
This is actually only visible if args other than "&" are specified
(e.g., "c 1&" or "next 2&" or "c -a&"), as in the special case of "&"
alone (e.g. "c&") doesn't actually clobber the incoming string.
Fix this by making strip_bg_char return a new string instead of poking
a hole in the input string.
New test included.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17471
* infcmd.c (strip_bg_char): Change prototype and rewrite. Now
returns a copy of the input.
(run_command_1, continue_command, step_1, jump_command)
(signal_command, until_command, advance_command, finish_command)
(attach_command): Adjust and install a cleanup to free the
stripped args.
gdb/testsuite/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17471
* gdb.base/bg-execution-repeat.c: New file.
* gdb.base/bg-execution-repeat.exp: New file.
2014-10-17 12:31:26 +00:00
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/* This testcase is part of GDB, the GNU debugger.
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2016-01-01 04:33:14 +00:00
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Copyright 2014-2016 Free Software Foundation, Inc.
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PR gdb/17471: Repeating a background command makes it foreground
When we repeat a command, by just pressing <ret>, the input from the
previous command is reused for the new command invocation.
When an execution command strips the "&" out of its incoming argument
string, to detect background execution, we poke a '\0' directly to the
incoming argument string.
Combine both, and a repeat of a background command loses the "&".
This is actually only visible if args other than "&" are specified
(e.g., "c 1&" or "next 2&" or "c -a&"), as in the special case of "&"
alone (e.g. "c&") doesn't actually clobber the incoming string.
Fix this by making strip_bg_char return a new string instead of poking
a hole in the input string.
New test included.
Tested on x86_64 Fedora 20, native and gdbserver.
gdb/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17471
* infcmd.c (strip_bg_char): Change prototype and rewrite. Now
returns a copy of the input.
(run_command_1, continue_command, step_1, jump_command)
(signal_command, until_command, advance_command, finish_command)
(attach_command): Adjust and install a cleanup to free the
stripped args.
gdb/testsuite/
2014-10-17 Pedro Alves <palves@redhat.com>
PR gdb/17471
* gdb.base/bg-execution-repeat.c: New file.
* gdb.base/bg-execution-repeat.exp: New file.
2014-10-17 12:31:26 +00:00
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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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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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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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#include <unistd.h>
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int
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foo (void)
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{
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return 0; /* set break here */
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}
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int
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main (void)
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{
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foo ();
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sleep (5);
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foo ();
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return 0;
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}
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