Commit Graph

74 Commits

Author SHA1 Message Date
Todd Fiala 771bb72aa7 Remove some unnecessary comments from previous check-in.
Removed a "done" TODO comment.

Moved some helper methods to the top of the unit test.

Removed some commented out code I was considering implementing
before I came up with a better overall approach.

llvm-svn: 209561
2014-05-23 22:33:42 +00:00
Todd Fiala dee6d286de Added gdb remote tests to verify $Hg{thread-id}.
Added test to check that each thread reported by $q{f,s}ThreadInfo
can be switched to by $Hg, verified by a follow-up $qC.

Modified test exe to accept "thread:new" to create a new thread 
that runs and sleeps for 5 seconds.

@llgs_test/@debugserver_test now buffer output.
   
llgs and debugserver gdbremote protocol tests now collect $O notification
output into the context returned from expect_lldb_gdbserver_replay.
context["O_count"] is an integer indicating the number of $O packets
collected during the replay, and context["O_content"] contains the
accumulated hex-decoded text output by the inferior (stdout and stderr).

Modified the $O check test to check the accumulated output rather than
a direct $O packet.

llvm-svn: 209560
2014-05-23 22:25:29 +00:00
Todd Fiala fbce07ced0 Added gdbremote protocol test for $p and returned data size.
Each register returned by $qRegisterInfo is tested that it's
$p register read returns a representation that is the correct byte size
as indicated by $qRegisterInfo.

Currently enabled for debugserver, disabled for llgs.

The llgs branch will use this to verify $p implementation.

llvm-svn: 209452
2014-05-22 17:18:18 +00:00
Todd Fiala 2b4307d037 Added tests for q{f,s}ThreadInfo for attached processes.
Added helper methods:
prep_debug_monitor_and_inferior(): properly handles
the two cases of running the stub against an inferior process
launched by the stub, and one attached to by the stub.  See
docs for function: simplifies test creation for tests that want
to test the same operations against a launched and attached inferior.

Added the q{f,s}ThreadInfo and $qC response comparison test (verifies
they both return the same thing) when the process is attached rather
than launched by the stub.

Modified the previous two tests added to make use of the new
prep_debug_monitor_and_inferior() facility.

llvm-svn: 209318
2014-05-21 20:12:01 +00:00
Todd Fiala 2954206e56 Added gdb-remote tests for q{f,s}ThreadInfo.
The First test verifies that qThreadInfo queries work for stub-launched processes.

The second test verifies that $qC after stub-launched inferior returns the same
thread as the qThreadInfo queries.

llvm-svn: 209314
2014-05-21 18:12:14 +00:00
Todd Fiala 4e53f9e1fe Change gdb remote test support multi-request format.
The multi request-response test infrastructure support was adding
the optional request suffix iteration index as decimal but it needed
to be hex per spec.  This change fixes that.

llvm-svn: 209234
2014-05-20 20:02:08 +00:00
Todd Fiala 62b2317fd8 Added gdb remote protocol tests across all qRegisterInfo responses.
Added support for gdb remote protocol capture/playback where there is a query/multiple-response
pattern.  The new playback entry supports:

- a general query command (key: next_query or query)
- an optional first-query command if that differs from the subsequent queries (key: first_query)
- an end regex for matching anything that would signify that the query/multi-response
  iteration has come to an end.  An assumption is that the end regex is not a content
  package we care about aside from ending the iteration. (key: end_regex)
- an optional 0-based index appended to the end of the query command 
  (key: append_iteration_suffix), default: False.
- a key used to collect responses from the query.  Any response from the gdb remote
  that doesn't match the end-of-iteration regex is captured in the playback context
  dictionary using the key specified.  That key will be an array, where each array
  entry is one of the responses from the query/multi-response iteration. (key: save_key).
- a runaway response value, defaulting to 10k, where if this many responses is captured,
  assume the ending condition regex is invalid, or the debug monitor is doing something
  goofy that is going to blow out memory or time. (key: runaway_response_count, default: 10000)

See the lldbgdbserverutils.MultiResponseGdbRemoteEntry class for details.

A MultiResponseGdbRemoteEntry is added by adding an element to the GdbRemoteTestSequence
(via GdbRemoteTestSequence.add_log_lines), using a dictionary, where the "type" key
is set to "multi_response", and the rest of the keys in the dictionary entry are
set to the keys documented for MultiResponseGdbRemoteEntry.

Added helper functions to add the required entry to grab all qRegisterInfo responses.
Added another helper to parse the qRegisterInfo response packets into an array of
dictionaries, where each key:value in the dictionary comes from the register info
response packet.

Added a test to verify that a generic register exists for the program counter,
frame pointer, stack pointer and cpu flags across all register info responses.

Added a test to verify that at least one register set exists across all register
info responses.

llvm-svn: 209170
2014-05-19 22:35:24 +00:00
Todd Fiala 76e1bf53b4 Revert r209142.
Need to spend a little more time with suppressing the debugserver 64-to-32 bit warnings.
Will re-submit after I get the warnings properly suppressed.

llvm-svn: 209151
2014-05-19 18:30:48 +00:00
Todd Fiala 06fcbd95e8 Added gdb remote test for one valid qRegisterInfo result.
Checks that at at least qRegisterInfo0 responds with a valid
register info reply packet.  The packet is parsed and validates
that all keys come from the documented set of valid keys.  It
then validates that a minimum set of expected keys
are present in the returned packet.

This test is set to pass on debugserver and fail on llgs TOT.

llvm-svn: 209109
2014-05-19 06:11:41 +00:00
Todd Fiala ff6131a958 Add support for gdb remote $X stop notification.
debugserver now returns $X09 as the immediate response to
a $k kill process request rather than $W09.

ProcessGDBRemote now properly handles X as indication of
a process exit state.

The @debugserver_test and @lldb_test for $k now properly expects
an X notification (signal-caused exit) after killing a just-attached
inferior that was still in the stopped state.

llvm-svn: 209108
2014-05-19 04:57:23 +00:00
Todd Fiala d18b767b04 Added gdbremote tests to verify kill and continue after attach.
llvm-svn: 208804
2014-05-14 19:34:06 +00:00
Todd Fiala 028a43f910 Fix up TestLldbGdbServer C++ test slug exe.
Missing header for Linux, replaces with iostreams.

llvm-svn: 208794
2014-05-14 17:12:02 +00:00
Todd Fiala f05ca45b1e Added debugserver/llgs test for command-line --attach {pid} variant.
Checks that the pid reported by $qProcessInfo matches the pid that was
launched as the attach test subject.

test exe now supports "sleep:{sleep_seconds}" command line argument.

llvm-svn: 208782
2014-05-14 14:51:27 +00:00
Todd Fiala 9f72b3a1ce Modify debugserver to follow gdb remote $qC protocol definition.
$qC from debugserver now returns the current thread's thread-id (and, like $?, will set a current thread if one is not already selected).  Previously it was returning the current process id.

lldb will now query $qProcessInfo to retrieve the process id.  The process id is now cached lazily and reset like other cached values.  Retrieval of the process id will fall back to the old $qC method for vendor==Apple and os==iOS if the qProcessInfo retrieval fails.

Added a gdb remote protocol-level test to verify that $qProcessInfo reports a valid process id after launching a process, while the process is in the initial stopped state.  Verifies the given process id is a currently valid process on host OSes for which we know how to check (MacOSX, Linux, {Free/Net}BSD).  Ignores the live process check for OSes where we don't know how to do this.  (I saw no portable way to do this in stock Python without pulling in other libs).

llvm-svn: 208241
2014-05-07 19:28:21 +00:00
Todd Fiala f9c3c9fe44 gdbremote testing: added regex support to match packets and propagate/test against previously stored matches.
Added a test validating that $qC after an inferior launch via $A
returns a thread id that an immediately followig $? reports for the
active thread. This is currently skipped on debugserver (the thread
ids don't match) and isn't yet implemented in TOT for llgs.

llvm-svn: 208061
2014-05-06 06:15:23 +00:00
Todd Fiala 6764c00687 Refactored gdb remote protocol testing sequence handling.
Pushed gdbremote protocol sequence expectations into a separate
class and defer matching of llgs/debugserver output to the
sequence entry.  Pre-step to adding regex matching and
grouped content collecting.

No longer require anything before the read/send packet
portion of slurped-up log lines used for setting up
gdb remote test sequences.  Several packet logging options
produce a wide range of content before the read/send packet.

Added helpers to TestLldbGdbServer to clean up test setup
and test expectations matching.

llvm-svn: 207998
2014-05-05 20:54:01 +00:00
Todd Fiala 41c60c818f Added gdb remote protocol tests for no output and inferior non-zero exit code.
Tests added for debugserver and lldb-gdbserver.  lldb-gdbserver marked as
XFAIL on top of tree.

Added build_gdbremote_A_packet test helper to construct a gdbremote A
launch packet from a list of args.

llvm-svn: 207568
2014-04-29 18:21:07 +00:00
Todd Fiala 56b25f74ce Added debugserver/llgs protocol test for output and clean exit.
Tests for $vCont;c program start, $O output and $W status code.
@llgs_test variant currently marked as expected fail.

llvm-svn: 207492
2014-04-29 05:01:01 +00:00
Todd Fiala 9164d9b304 Fixed up lldb-gdbserver to match slightly different debugserver listener host:port message.
Fixed up typo in lldb-gdbserver name missed when working on the OS X side earlier today for debugserver support.

llvm-svn: 207398
2014-04-28 06:04:46 +00:00
Todd Fiala a41d48cac8 Added two new test types: @debugserver_test and @llgs_test.
TestLldbGdbServer now supports both lldb-gdbserver (llgs) and
debugserver tests.  Similar to the dsym/dwarf tests, they allow
running the same underlying gdb remote protocol tests against
lldb-gdbserver and debugserver.  This will help make sure the
protocol-level tests for lldb-gdbserver faithfully represent
what debugserver does on OS X.

Switched back gdb remote protocol test logging to warning
and above (accidentally submitted it at debug level in a
recent commit).

llvm-svn: 207395
2014-04-28 04:49:40 +00:00
Todd Fiala 260323dba6 Added TestLldbGdbServer test for A start exe packet.
Fixed up bug in XFAIL tests where I appended an array when I intended to merge an array.

llvm-svn: 207285
2014-04-25 23:08:24 +00:00
Todd Fiala 98118c38a3 Prevent TestLldbGdbServer shutdown cleanup failures from failing the test.
Adds try/except blocks around clean-up code. Prevents a race between gdb
remote kill command reception by llgs (which leads llgs to shut down)
and the pexpect server kill (which can fail if the kill command handling
completes first). Warnings are emitted on the logger for any clean-up
code that fails.

llvm-svn: 207273
2014-04-25 21:09:28 +00:00
Todd Fiala ed7a08ec7f Added a packet-playback test facility for lldb-gdbserver and a few starter tests.
lldbgdbserverutils.py has a new expect_lldb_gdbserver_replay() method
that plays back gdb remote send/receive packets. These packets are the
log lines that come from running the 'log enable gdb-remote packets',
either from the lldb-gdbserver side or the lldb side. There's a flag
to flip which side is the send (lldb-gdbserver input or lldb-gdbserver
output).

This first checkin tests the initial gdbremote handshake, the ability
to turn on the no-ack mode communication style, thread suffix support,
and list threads in stop reply support. The last two are marked xfail
as top of tree does not yet support these.

 --This line, and those below, will be ignored--

M    test/tools/lldb-gdbserver/TestLldbGdbServer.py
M    test/tools/lldb-gdbserver/lldbgdbserverutils.py

llvm-svn: 206930
2014-04-22 23:16:53 +00:00
Todd Fiala 132b880558 Added a basic connection test for lldb-gdbserver.
The lldb-gdbserver tests are skipped if the lldb-gdbserver exe cannot be found (currently only built for Linux and FreeBSD).  The lldb-gdbserver exe is found by the LLDB_EXEC environment variable, using the same dir as the lldb exe, and then replacing lldb with lldb-gdbserver.

llvm-svn: 206731
2014-04-21 05:30:08 +00:00