Disabling buffering exposes a bug in the MS VS 2015 CRT implementation of fgets, where you sometimes have to hit Enter twice, depending on if the input had an odd or even number of characters.
This was hidden until a few days ago by the Python initialization which was re-enabling buffering on the streams. A few days ago, Enrico make the Python initialization on-demand, which exposed this problem.
llvm-svn: 266384
Summary:
If we recieve a SIGCONT or SIGTSTP, while the driver is shutting down (which, sometimes, we do,
for reasons which are not completely clear to me), we would crash to due a null pointer
dereference. Guard against this situation.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D18965
llvm-svn: 265958
Win32 API calls that are Unicode aware require wide character
strings, but LLDB uses UTF8 everywhere. This patch does conversions
wherever necessary when passing strings into and out of Win32 API
calls.
Patch by Cameron
Differential Revision: http://reviews.llvm.org/D17107
Reviewed By: zturner, amccarth
llvm-svn: 264074
The Windows SDK provides a version of signal() that is much more
limited compared to other platforms. It only supports about 5-6
signal values. LLDB uses signals for a number of things, most
notably to handle Ctrl+C so we can gracefully shut down. The
portability solution to this on Windows has been to provide a
hand-rolled implementation of `signal` using the name `signal`
so that you could write code that simply calls signal directly
and it would work.
But this introduces a multiply defined symbol with the builtin
version and depending on how you included header files, you could
get yourself into a situation where you had linker errors. To
make matters worse, it led to a ton of compiler warnings. Worst
of all though is that this custom implementation of signal was,
in fact, identical for the purposes of handling Ctrl+C as the
builtin implementation of signal. So it seems to have literally
not been serving any useful purpose.
This patch deletes all the custom signal() functions for Windows,
and includes the signal.h system header, so that any calls to
signal now go to the actual version provided by the Windows SDK.
Differential Revision: http://reviews.llvm.org/D18287
llvm-svn: 263858
working directory by default -- a typical security problem that we
need to be more conservative about.
It adds a new target setting, target.load-cwd-lldbinit which may
be true (always read $cwd/.lldbinit), false (never read $cwd/.lldbinit)
or warn (warn if there is a $cwd/.lldbinit and don't read it). The
default is set to warn. If this is met with unhappiness, we can look
at changing the default to true (to match current behavior) on a
different platform.
This does not affect reading of ~/.lldbinit - that will still be read,
as before. If you run lldb in your home directory, it will not warn
about the presence of a .lldbinit file there.
I had to add two SB API - SBHostOS::GetUserHomeDirectory and
SBFileSpec::AppendPathComponent - for the lldb driver code to be
able to get the home directory path in an OS neutral manner.
The warning text is
There is a .lldbinit file in the current directory which is not being read.
To silence this warning without sourcing in the local .lldbinit,
add the following to the lldbinit file in your home directory:
settings set target.load-cwd-lldbinit false
To allow lldb to source .lldbinit files in the current working directory,
set the value of this variable to true. Only do so if you understand and
accept the security risk.
<rdar://problem/24199163>
llvm-svn: 261280
Summary: This diff approaches building the project natively on NetBSD with the autoconf/gmake framework.
Patch by Kamil Rytarowski. Thanks!
Reviewers: emaste, clayborg
Subscribers: tberghammer, joerg, brucem, lldb-commits
Differential Revision: http://reviews.llvm.org/D14531
llvm-svn: 253153
This makes LLDB launch and create a REPL, specifying no target so that the REPL
can create one for itself. Also added the "--repl-language" option, which
specifies the language to use. Plumbed the relevant arguments and errors
through the REPL creation mechanism.
llvm-svn: 250773
ninja lldb now does the following:
* forces the python post-build step to fire, which sets up the python lldb module properly.
* on Darwin and Linux, requires the lldb-server target to be built.
* on Darwin, requires the debugserver target to be built.
See http://reviews.llvm.org/D12899 for details.
llvm-svn: 247810
Summary:
This doesn't exist in other LLVM projects any longer and doesn't
do anything.
Reviewers: chaoren, labath
Subscribers: emaste, tberghammer, lldb-commits, danalbert
Differential Revision: http://reviews.llvm.org/D12586
llvm-svn: 246749
results if the -Q option is not provided. Also took out the quietly
option from AddInitialCommand, we don't use that to set this option,
we use the override set by the -Q option.
<rdar://problem/21232087>
llvm-svn: 241652
LLDB included editline in a couple of places, not respecting LLDB_DISABLE_LIBEDIT. As far as I can tell, these includes are not used, so I am removing them.
llvm-svn: 239199
Removed some unused variables, added some consts, changed some casts
to const_cast. I don't think any of these changes are very
controversial.
Differential Revision: http://reviews.llvm.org/D9674
llvm-svn: 237218
This variable "g_debugger_name" is not used anywhere. It also causes a warning.
I was first going to change its type to fix the warning then noticed that it
is not being used. So removing it.
Committed as Obvious.
llvm-svn: 232043
Summary:
LLDB driver was simply tacking quotes around the strings in lldb commands, hoping that will work.
This changes it to properly escape quotes and backslashes.
Reviewers: clayborg
Subscribers: lldb-commits
Differential Revision: http://reviews.llvm.org/D8083
llvm-svn: 231394
This resubmits r230380. The primary cause of the failure was
actually just a warning, which we can disable at the CMake level
in a followup patch on the LLVM side. The other thing which was
actually an error on the bot should be able to be fixed with
a clean.
llvm-svn: 230389
An OBJECT library is a special type of CMake library that produces
no archive, has no link interface, and no link inputs. It is like
a regular archive, just without the physical output. To link
against an OBJECT library, you reference it in the *source* file
list of a library using the special syntax $<TARGET_OBJECTS:lldbAPI>.
This will cause every object file to be passed to the linker
independently, as opposed to a single archive being passed to the
linker.
This is *extremely* important on Windows. lldbAPI exports all of the
SB classes using __declspec(dllexport). Unfortunately for technical
reasons it is not possible (well, extremely difficult) to get the
linker to propagate a __declspec(dllexport) attribute from a symbol
in an object file in an archive to a DLL that links against that
archive. The solution to this is for the DLL to link the object files
directly. So lldbAPI must be an OBJECT library.
This fixes an issue that has been present since the duplicated
lldbAPI file lists were removed, which would cause linker failures.
As a side effect, this also makes LLDB_DISABLE_PYTHON=1 work again
on Windows, which was previously totally broken.
llvm-svn: 230380
Platform.h was causing soem warning due to multiple defined maros.
It already has a define that excludes the singal.h but that was not being
used at correct place. It has been fixed now.
Tested by building on Windows(MSVC) and Linux(gcc).
llvm-svn: 229664
some commands that will get run if the target crashes.
Also fix the bug where the local .lldbinit file was not getting
sourced before not after the target was created from the file options on the
driver command line.
<rdar://problem/19019843>
llvm-svn: 222295
after all the commands have been executed except if one of the commands was an execution control
command that stopped because of a signal or exception.
Also adds a variant of SBCommandInterpreter::HandleCommand that takes an SBExecutionContext. That
way you can run an lldb command targeted at a particular target, thread or process w/o having to
select same before running the command.
Also exposes CommandInterpreter::HandleCommandsFromFile to the SBCommandInterpreter API, since that
seemed generally useful.
llvm-svn: 219654
do that (RunCommandInterpreter, HandleCommands, HandleCommandsFromFile) to gather
the options into an options class. Also expose that to the SB API's.
Change the way the "-o" options to the lldb driver are processed so:
1) They are run synchronously - didn't really make any sense to run the asynchronously.
2) The stop on error
3) "quit" in one of the -o commands will not quit lldb - not the command interpreter
that was running the -o commands.
I added an entry to the run options to stop-on-crash, but I haven't implemented that yet.
llvm-svn: 219553
We would previously simply assume that the write would always succeed. However,
write(2) may return -1 for error as well as fail to perform a complete write (in
which case the returned number of bytes will be less than the requested bytes).
Explicitly check if an error condition is encountered. This would previously
not be caught as we default initialized success to true. Add an assertion that
we always perform a complete write (a continuous retry could be added to ensure
that we finish writing completely).
This was caught by GCC's signed comparison warning and manual inspection.
llvm-svn: 217355
The many many benefits include:
1 - Input/Output/Error streams are now handled as real streams not a push style input
2 - auto completion in python embedded interpreter
3 - multi-line input for "script" and "expression" commands now allow you to edit previous/next lines using up and down arrow keys and this makes multi-line input actually a viable thing to use
4 - it is now possible to use curses to drive LLDB (please try the "gui" command)
We will need to deal with and fix any buildbot failures and tests and arise now that input/output and error are correctly hooked up in all cases.
llvm-svn: 200263
Adrian McCarthy