dedad4e3d2
This forces all tests that rely on stdio to be unbuffered, like
interrupt.exp was adjusted in 6f98576f.
To recap, in some scenarios, GDB or GDBserver can be spawned with
input _not_ connected to a tty, and then tests that rely on stdio fail
with timeouts, because the inferior's stdout and stderr streams end up
fully buffered. Calling gdb_unbuffer_output forces output to be
unbuffered.
See https://sourceware.org/ml/gdb-patches/2015-02/msg00809.html and
https://sourceware.org/ml/gdb-patches/2015-02/msg00819.html.
Tested on x86_64 Fedora 20, native, and against a remote gdbserver
board file that connects to the target with ssh, with and without -t
(create pty).
gdb/testsuite/ChangeLog:
2015-07-29 Pedro Alves <palves@redhat.com>
* gdb.base/call-ar-st.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/call-rt-st.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/call-strs.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/call-strs.exp: Adjust to step over the
gdb_unbuffer_output call.
* gdb.base/catch-gdb-caused-signals.c: Include
"../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/dprintf.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/ending-run.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/run.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/shlib-call.exp: Adjust to step over the
gdb_unbuffer_output call.
* gdb.base/shmain.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/sizeof.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
* gdb.base/varargs.c: Include "../lib/unbuffer_output.c".
(main): Rename to ...
(test): ... this.
(main): Reimplement.
* gdb.base/varargs.exp: Run to test instead of to main.
* gdb.mi/mi-dprintf.c: Include "../lib/unbuffer_output.c".
(main): Call gdb_unbuffer_output.
62 lines
1.6 KiB
C
62 lines
1.6 KiB
C
/* This testcase is part of GDB, the GNU debugger.
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Copyright (C) 2012-2015 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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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 <stdio.h>
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#include "../lib/unbuffer_output.c"
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static int g;
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void
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foo (int arg)
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{
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g += arg;
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g *= 2; /* set dprintf 1 here */
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g /= 2.5; /* set breakpoint 1 here */
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}
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int
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main (int argc, char *argv[])
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{
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int loc = 1234;
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gdb_unbuffer_output ();
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/* Ensure these functions are available. */
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printf ("kickoff %d\n", loc);
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fprintf (stderr, "also to stderr %d\n", loc);
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foo (loc++);
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foo (loc++);
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foo (loc++);
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return g;
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}
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#include <stdlib.h>
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/* Make sure function 'malloc' is linked into program. One some bare-metal
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port, if we don't use 'malloc', it will not be linked in program. 'malloc'
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is needed, otherwise we'll see such error message
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evaluation of this expression requires the program to have a function
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"malloc". */
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void
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bar (void)
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{
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void *p = malloc (16);
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free (p);
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}
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