de8fa76c44
When interactive-mode is not auto, GDB always uses that setting to
determine whether to act as if the input stream is a terminal or not.
However, this setting should only be honored if the input stream is
the standard input stream. Otherwise, we run into trouble while
source-ing a GDB script, as shown below (on x86_64-linux):
% cat script
print 1
print 2
% gdb -q
(gdb) set interactive-mode on
(gdb) source script
(gdb) print 3
$1 = 3
The lack of output and the fact that the "print 3" command returned
a value saved in $1 (as opposed to $3) indicates that the script was
not even evaluated at all.
gdb/ChangeLog:
* top.c (input_from_terminal_p): Restrict the use of interactive_mode
to the case where instream is stdin.
gdb/testsuite/ChangeLog:
* gdb.base/interact.exp: New testcase.
48 lines
1.9 KiB
Text
48 lines
1.9 KiB
Text
# Copyright 2011 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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# Create a GDB script that we can source. The script needs to generate
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# some output, to allow us to verify that it is executed properly.
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set fd [open "zzz-gdbscript" "w"]
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puts $fd "print 1"
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puts $fd "print 2"
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close $fd
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# The expected output from the script...
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set script_output "\\$\[0-9\]+ = 1\[\r\n\]+\\$\[0-9\]+ = 2.*"
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# Start a fresh GDB. We don't need an executable for this test, so
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# nothing else to do in terms of testcase setup.
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gdb_exit
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gdb_start
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# Test sourcing of the script with interactive mode `auto'
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gdb_test_no_output "set interactive-mode auto"
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gdb_test "source zzz-gdbscript" "$script_output" \
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"source script with interactive-mode auto"
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gdb_test "print 3" "= 3" "sanity check with interactive-mode auto"
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# Test sourcing of the script with interactive mode `on'
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gdb_test_no_output "set interactive-mode on"
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gdb_test "source zzz-gdbscript" "$script_output" \
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"source script with interactive-mode on"
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gdb_test "print 4" "= 4" "sanity check with interactive-mode on"
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# Test sourcing of the script with interactive mode `of'
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gdb_test_no_output "set interactive-mode off"
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gdb_test "source zzz-gdbscript" "$script_output" \
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"source script with interactive-mode off"
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gdb_test "print 5" "= 5" "sanity check with interactive-mode off"
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