New functions to give client applications to tools to discover target byte sizes
for addresses prior to ReadMemory. Also added GetPlatform and ReadMemory to the
SBTarget class, since they seemed to be useful utilities to have.
Each new API has had a test case added.
http://reviews.llvm.org/D5867
llvm-svn: 220372
BreakpointLocation::ShouldStop. That worked but wasn't really right,
since there's nothing to guarantee that won't get called more than
once. So this change moves that responsibility to the StopInfoBreakpoint
directly, and then it uses the BreakpointSite to actually do the bumping.
Also fix a test case that was assuming if you had many threads running some
code with a breakpoint in it, the hit count when you stopped would always be
1. Many of the threads could have hit it at the same time...
<rdar://problem/18577603>
llvm-svn: 220358
There were many issues with synchronous mode that we discovered when started to try and add a "batch" mode. There was a race condition where the event handling thread might consume events when in sync mode and other times the Process::WaitForProcessToStop() would consume them. This also led to places where the Process IO handler might or might not get popped when it needed to be.
llvm-svn: 220254
r219978 fixed this test to work on Darwin, and removed the expected
failure decorator, but it then started running (and failing) on FreeBSD.
I'd think @dsym_test should skip the test on all non-Darwin operating
systems. It seems not to be the case, so for now skip it the same way as
done for other @dsym_test tests.
llvm-svn: 220219
This fix addresses a requirement on some Linux kernels that limits
a PTRACER to be an ancestor of the ptraced process. The fix in this
case is to have the inferior test exe explicitly allow any ptracer
to attach.
This fixes several ptrace-related issues that I did not see on a modified
kernel we used internally on my team.
See http://reviews.llvm.org/D5846 for details.
This fixes these previously failing tests on stock Ubuntu systems:
FAIL: LLDB (suite) :: TestGdbRemoteProcessInfo.py (Linux vagrant 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64)
FAIL: LLDB (suite) :: TestGdbRemoteAttach.py (Linux vagrant 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64)
FAIL: LLDB (suite) :: TestLldbGdbServer.py (Linux vagrant 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64)
FAIL: LLDB (suite) :: TestGdbRemoteKill.py (Linux vagrant 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64)
llvm-svn: 220181
Issues were:
1 - It isn't good to have more than one listener for the process events, just supply a listener at launch instead of making a one then have the process broadcaster add a new listener
2 - run in async mode
llvm-svn: 220113
case. This test case style attempts to shed all
of the boilerplate that is required for test
cases, and let 80% of test cases use a much terser
syntax.
Inline testcases have much simplified python files
(the corresponding .py file should contain two
lines of code) and require no Makefile, because the
Makefile is generated automatically. Breakpoints
are set automatically and the indicated breakpoint
actions (specified after a magic //% comment) are
executed when the breakpoint is hit.
All other testcases are unaffected.
One thing I'm not really happy with yet is the way
multiple actions for the same line are specified.
I'm going to use lang/c/struct_types as a guinea
pig to develop this further.
llvm-svn: 219984
The main issue was if you didn't specify all three (stdin/out/err), you would get file actions added to the launch that would always use the pseudo terminal. This is now fixed.
Also fixed the test suite test that handles IO to test redirecting things individually and all together and in other combinations to make sure we don't regress.
<rdar://problem/18638226>
llvm-svn: 219711
The build fails due to missing asan runtime in the FreeBSD base system.
Instead of marking it expected fail, just skip until we have the runtime
available.
llvm.org/pr21136
llvm-svn: 219701
This addresses this bug:
http://www.llvm.org/bugs/show_bug.cgi?id=21267
Which has been broken since svn r215256 on Aug 8 2014.
DO NOT REVERT THIS COMMIT EVEN IF IT CREATES TEST FAILURES.
The test failures are a result of accumulation of hidden failures
that were masked by the bug this change fixes. Most of our test
runners as part of build testing rely on dotest.py returning non-zero to indicate
some kind of errant test run. Thus, we have been flying blind
since Aug 8 2014.
llvm-svn: 219689
Reviewed at http://reviews.llvm.org/D5592
This patch gives LLDB some ability to interact with AddressSanitizer runtime library, on top of what we already have (historical memory stack traces provided by ASan). Namely, that's the ability to stop on an error caught by ASan, and access the report information that are associated with it. The report information is also exposed into SB API.
More precisely this patch...
adds a new plugin type, InstrumentationRuntime, which should serve as a generic superclass for other instrumentation runtime libraries, these plugins get notified when modules are loaded, so they get a chance to "activate" when a specific dynamic library is loaded
an instance of this plugin type, AddressSanitizerRuntime, which activates itself when it sees the ASan dynamic library or founds ASan statically linked in the executable
adds a collection of these plugins into the Process class
AddressSanitizerRuntime sets an internal breakpoint on __asan::AsanDie(), and when this breakpoint gets hit, it retrieves the report information from ASan
this breakpoint is then exposed as a new StopReason, eStopReasonInstrumentation, with a new StopInfo subclass, InstrumentationRuntimeStopInfo
the StopInfo superclass is extended with a m_extended_info field (it's a StructuredData::ObjectSP), that can hold arbitrary JSON-like data, which is the way the new plugin provides the report data
the "thread info" command now accepts a "-s" flag that prints out the JSON data of a stop reason (same way the "-j" flag works now)
SBThread has a new API, GetStopReasonExtendedInfoAsJSON, which dumps the JSON string into a SBStream
adds a test case for all of this
I plan to also get rid of the original ASan plugin (memory history stack traces) and use an instance of AddressSanitizerRuntime for that purpose.
Kuba
llvm-svn: 219546
output style can be customized. Change the built-in default to be
more similar to gdb's disassembly formatting.
The disassembly-format for a gdb-like output is
${addr-file-or-load} <${function.name-without-args}${function.concrete-only-addr-offset-no-padding}>:
The disassembly-format for the lldb style output is
{${function.initial-function}{${module.file.basename}`}{${function.name-without-args}}:\n}{${function.changed}\n{${module.file.basename}`}{${function.name-without-args}}:\n}{${current-pc-arrow} }{${addr-file-or-load}}:
The two backticks in the lldb style formatter triggers the sub-expression evaluation in
CommandInterpreter::PreprocessCommand() so you can't use that one as-is ... changing to
use ' characters instead of ` would work around that.
<rdar://problem/9885398>
llvm-svn: 219544
The way to do this is to write a synthetic child provider for your type, and have it vend the (optional) get_value function.
If get_value is defined, and it returns a valid SBValue, that SBValue's value (as in lldb_private::Value) will be used as the synthetic ValueObject's Value
The rationale for doing things this way is twofold:
- there are many possible ways to define a "value" (SBData, a Python number, ...) but SBValue seems general enough as a thing that stores a "value", so we just trade values that way and that keeps our currency trivial
- we could introduce a new level of layering (ValueObjectSyntheticValue), a new kind of formatter (synthetic value producer), but that would complicate the model (can I have a dynamic with no synthetic children but synthetic value? synthetic value with synthetic children but no dynamic?), and I really couldn't see much benefit to be reaped from this added complexity in the matrix
On the other hand, just defining a synthetic child provider with a get_value but returning no actual children is easy enough that it's not a significant road-block to adoption of this feature
Comes with a test case
llvm-svn: 219330
The build fails due to missing asan runtime in the FreeBSD base system.
Instead of marking it expected fail, just skip until we have the runtime
available.
llvm.org/pr21136
llvm-svn: 219328
the default search method is "always" as of r218405.
For the purposes of this test, set it back to "headers"
to confirm that the file+line breakpoint doesn't work,
then verify that it does work with "always". Leave it
in "always" setting.
<rdar://problem/18564244>
llvm-svn: 219251
that the function we were calling would continue to sleep
for the requested time even if it was interrupted. That is
not true of std::this_thread::sleep_for, at least not on OS X.
Fix the test case so that if it wakes up early, it goes back
to sleep till the time is actually greater than the end point.
<rdar://problem/18523742>
llvm-svn: 219234
Ed Maste