67b5c0c1a4
The btrace record target does not trace data. We therefore do not allow accessing read-write memory during replay. In some cases, this might be useful to advanced users, though, who we assume to know what they are doing. Add a set|show command pair to turn this memory access restriction off. * record-btrace.c (record_btrace_allow_memory_access): Remove. (replay_memory_access_read_only, replay_memory_access_read_write) (replay_memory_access_types, replay_memory_access) (set_record_btrace_cmdlist, show_record_btrace_cmdlist) (cmd_set_record_btrace, cmd_show_record_btrace) (cmd_show_replay_memory_access): New. (record_btrace_xfer_partial, record_btrace_insert_breakpoint) (record_btrace_remove_breakpoint): Replace record_btrace_allow_memory_access with replay_memory_access. (_initialize_record_btrace): Add commands. * NEWS: Announce it. testsuite/ * gdb.btrace/data.exp: Test it. doc/ * gdb.texinfo (Process Record and Replay): Document it.
53 lines
1.7 KiB
Text
53 lines
1.7 KiB
Text
# This testcase is part of GDB, the GNU debugger.
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#
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# Copyright 2013 Free Software Foundation, Inc.
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#
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# Contributed by Intel Corp. <markus.t.metzger@intel.com>
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#
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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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# check for btrace support
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if { [skip_btrace_tests] } { return -1 }
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# start inferior
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standard_testfile
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if [prepare_for_testing $testfile.exp $testfile $srcfile] {
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return -1
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}
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if ![runto_main] {
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return -1
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}
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# trace the test code
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gdb_test_no_output "record btrace"
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gdb_test "next" ".*main\.3.*"
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# reverse step into test
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gdb_test "reverse-step" ".*test\.4.*"
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# we can't read memory while we're replaying
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gdb_test "print glob" "unavailable\[^\\\r\\\n\]*"
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gdb_test "print loc" "unavailable\[^\\\r\\\n\]*"
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# we can read memory if we explicitly allow it.
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gdb_test_no_output "set record btrace replay-memory-access read-write"
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gdb_test "print glob" "1"
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# we can't if we don't explicitly allow it.
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gdb_test_no_output "set record btrace replay-memory-access read-only"
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gdb_test "print glob" "unavailable\[^\\\r\\\n\]*"
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# stop replaying and try again
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gdb_test "record goto end" ".*main\.3.*"
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gdb_test "print glob" "1"
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