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.
128 lines
3.7 KiB
Text
128 lines
3.7 KiB
Text
# Copyright 1997-2015 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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#
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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 was written by Elena Zannoni (ezannoni@cygnus.com)
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# this file tests command line calls with functions having variable
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# args list
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# corresponding source file: varargs.c
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#print find_max1(5,1,2,3,4,5)
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#print find_max1(1,3)
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#call find_max1(10,1,2,3,4,5,6,7,8,29,0)
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#print find_max2(3,1,2,3)
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#print find_max_double(5,1.0,17.0,2.0,3.0,4.0)
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#quit
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set prototypes 0
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standard_testfile .c
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if [get_compiler_info] {
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return -1
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}
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set additional_flags {debug}
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if [support_complex_tests] {
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lappend additional_flags "additional_flags=-DTEST_COMPLEX"
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}
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if {$hp_cc_compiler} {
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lappend additional_flags "additional_flags=-Ae"
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}
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# build the first test case
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if { [gdb_compile "${srcdir}/${subdir}/${srcfile}" "${binfile}" \
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executable ${additional_flags}] != "" } {
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untested varargs.exp
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return -1
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}
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# Start with a fresh gdb.
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clean_restart ${binfile}
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gdb_test_no_output "set print sevenbit-strings"
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gdb_test_no_output "set print address off"
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gdb_test_no_output "set width 0"
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if [gdb_skip_stdio_test "varargs.exp"] {
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# Nothing in this module is testable without printf.
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return
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}
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if ![runto test] then {
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perror "couldn't run to breakpoint"
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continue
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}
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if { $hp_aCC_compiler } {
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# When compiled w/ aCC we need to disable overload resolution
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# for command line calls.
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# We need it for vararg calls since the aCC compiler gives us no
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# information about the undeclared arguments, or even that there
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# _are_ undeclared arguments. As far as gdb is concerned it only
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# knows about the declared arguments. So we need to force the call
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# even though the overload resolution mechanism says that the types
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# don't match.
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# - guo
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gdb_test_no_output "set overload-resolution 0"
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}
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gdb_test_stdio "print find_max1(5,1,2,3,4,5)" \
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"find_max\\(5, 1, 2, 3, 4, 5\\) returns 5\[ \r\n\]+" \
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".\[0-9\]+ = 5" \
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"print find_max1(5,1,2,3,4,5)"
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gdb_test_stdio "print find_max1(1,3)" \
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"find_max\\(1, 3\\) returns 3\[ \r\n\]+" \
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".\[0-9\]+ = 3" \
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"print find_max1(1,3)"
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gdb_test_stdio "print find_max1(10,1,2,3,4,5,6,7,8,29,0)" \
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"find_max\\(10, 1, 2, 3, 4, 5, 6, 7, 8, 29, 0\\) returns 29\[ \r\n\]+" \
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".\[0-9\]+ = 29" \
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"print find_max1(10,1,2,3,4,5,6,7,8,29,0)"
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gdb_test_stdio "print find_max2(3,1,2,3)" \
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"find_max\\(3, 1, 2, 3\\) returns 3\[ \r\n\]+" \
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".\[0-9\]+ = 3" \
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"print find_max2(3,1,2,3)"
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if {![target_info exists gdb,skip_float_tests]} {
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gdb_test_stdio "print find_max_double(5,1.0,17.0,2.0,3.0,4.0)" \
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"find_max\\(.*\\) returns 17\\.000000\[ \r\n\]+" \
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".\[0-9\]+ = 17" \
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"print find_max_double(5,1.0,17.0,2.0,3.0,4.0)"
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}
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# Test _Complex type here if supported.
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if [support_complex_tests] {
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global gdb_prompt
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set test "print find_max_float_real(4, fc1, fc2, fc3, fc4)"
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gdb_test $test ".*= 4 \\+ 4 \\* I" $test
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set test "print find_max_double_real(4, dc1, dc2, dc3, dc4)"
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gdb_test $test ".*= 4 \\+ 4 \\* I" $test
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set test "print find_max_long_double_real(4, ldc1, ldc2, ldc3, ldc4)"
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gdb_test $test ".*= 4 \\+ 4 \\* I" $test
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}
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