Commit Graph

680 Commits

Author SHA1 Message Date
Jim Ingham b0fac5090f Add a comment to break disable's help to make clearer the relationship between the
enable/disable state of a breakpoint, and of its locations.

llvm-svn: 176672
2013-03-08 00:31:40 +00:00
Greg Clayton 30820f0685 <rdar://problem/13184855>
Spaces in "settings set" value strings no longer cause setting failures.

llvm-svn: 176532
2013-03-05 23:52:49 +00:00
Jim Ingham 0f063ba6b4 Convert from the C-based LLVM Disassembler shim to the full MC Disassembler API's.
Calculate "can branch" using the MC API's rather than our hand-rolled regex'es.
As extra credit, allow setting the disassembly flavor for x86 based architectures to intel or att.

<rdar://problem/11319574>
<rdar://problem/9329275>

llvm-svn: 176392
2013-03-02 00:26:47 +00:00
Jim Ingham d9916eaecc breakpoint command add currently doesn't support adding commands to more than one breakpoint
at a time.  Enforce this for now (we should relax the requirement when we have a little more time.)

<rdar://problem/13314462>

llvm-svn: 176291
2013-02-28 19:30:07 +00:00
Daniel Malea bdf7d83ac4 Update CMakeLists.txt as per removed file
llvm-svn: 176269
2013-02-28 16:53:22 +00:00
Greg Clayton 72310355ff <rdar://problem/13265297>
StackFrame assumes m_sc is additive, but m_sc can lose its target. So now the SymbolContext::Clear() method takes a bool that indicates if the target should be cleared. Modified all existing code to properly set the bool argument.

llvm-svn: 175953
2013-02-23 04:12:47 +00:00
Enrico Granata d2f16e2c2d <rdar://problem/13265017>
The notion of Crossref command has long been forgotten, and there is nothing using CommandObjectCrossref in the current LLDB codebase
However, this was causing a conflict with process plugins and command aliases ending up in an infinite loop under situations such as:
(lldb) command alias monitor process plugin packet monitor
(lldb) process att -n Calendar
Process 28709 stopped
Executable module set to "/Applications/Calendar.app/Contents/MacOS/Calendar".
Architecture set to: x86_64-apple-macosx.
(lldb) command alias monitor process plugin packet monitor

This fixes the loop (and consequent crash) by disposing of Crossref commands and related code

llvm-svn: 175831
2013-02-21 23:57:25 +00:00
Daniel Malea d82ac9e769 Fix CommandObjectMultiword to initialize all members, and beef up corresponding test case.
llvm-svn: 175798
2013-02-21 21:18:07 +00:00
Daniel Malea 23720cc66c Adding CMake build system to LLDB. Some known issues remain:
- generate-vers.pl has to be called by cmake to generate the version number
- parallel builds not yet supported; dependency on clang must be explicitly specified

Tested on Linux.
- Building on Mac will require code-signing logic to be implemented.
- Building on Windows will require OS-detection logic and some selective directory inclusion

Thanks to Carlo Kok (who originally prepared these CMakefiles for Windows) and Ben Langmuir
who ported them to Linux!

llvm-svn: 175795
2013-02-21 20:58:22 +00:00
Enrico Granata a6db933979 If you say
(lldb) frame variable
without first launching the inferior, you get:
error: invalid frame

this is misleading and should probably hint that there is no process. Adding this flag makes sure that we get:
error: invalid process

The difference between eFlagRequiresProcess and eFlagProcessMustBeLaunched is an open question.

llvm-svn: 175702
2013-02-21 01:29:04 +00:00
Jim Ingham 6394479e4f One to many always's.
llvm-svn: 175202
2013-02-14 19:30:35 +00:00
Jim Ingham 289aca642e Make it clear that if you #include .c/.cpp/.m/.mm etc files, you will have to
change the breakpoint-inline-strategy for the breakpoints to take.

<rdar://problem/13189024>

llvm-svn: 175197
2013-02-14 19:10:36 +00:00
Greg Clayton 25d5941e2a <rdar://problem/13207948>
"watchpoint set expression" fails if "--" is present without any option. Made this command match exactly what "expression" does.

llvm-svn: 175136
2013-02-14 04:15:23 +00:00
Jim Ingham 0161b49cba Reworked the way Process::RunThreadPlan and the ThreadPlanCallFunction interoperate to fix problems where
hitting auto-continue signals while running a thread plan would cause us to lose control of the debug 
session.

<rdar://problem/12993641>

llvm-svn: 174793
2013-02-09 01:29:05 +00:00
Jason Molenda b9c9f9b200 Change CommandObjectTargetSymbolsAdd to require that a target exists;
fixes crash of the form

% lldb
(lldb) target symbols add /tmp/symbols.dSYM
(lldb) Killed: 9

<rdar://problem/13139481> 

llvm-svn: 174267
2013-02-02 06:00:36 +00:00
Jim Ingham 93208b8680 Add "thread return -x" to unwind the innermost user called expression (if you happen to have stopped in it due to a crash.)
Make the message when you hit an crash while evaluating an expression a little clearer, and mention "thread return -x".

rdar://problem/13110464

llvm-svn: 174095
2013-01-31 21:46:01 +00:00
Enrico Granata b84a9dbf6b <rdar://problem/12552374>
Replacing the address argument type with address-expression in cases where StringToAddress() is used, and hence an expression can be passed where previously only a numeric address was allowed
This makes the documentation more clear and helps users discover that they can truly pass in an expression in these situations.

llvm-svn: 173753
2013-01-29 01:48:30 +00:00
Enrico Granata 9a31ccbad8 <rdar://problem/12890171>
Providing a compact display mode for "po" to use where the convenience variable name and the pointer value are both hidden.
This is for convenience when dealing with ObjC instances where the description often gets it right and the debugger-provided information is not useful to most people.
If you need either of these, "expr" will still show them.

llvm-svn: 173748
2013-01-29 01:35:01 +00:00
Greg Clayton 3c94737fb7 <rdar://problem/12524607>
Flush the process when symbols are loaded/unloaded manually. This was going on in:
- "target modules load" command
- SBTarget::SetSectionLoadAddress(...)
- SBTarget::ClearSectionLoadAddress(...)
- SBTarget::SetModuleLoadAddress(...)
- SBTarget::ClearModuleLoadAddress(...)

llvm-svn: 173745
2013-01-29 01:17:09 +00:00
Enrico Granata 5548cb50b2 <rdar://problem/12978143>
Data formatters now cache themselves.
This commit provides a new formatter cache mechanism. Upon resolving a formatter (summary or synthetic), LLDB remembers the resolution for later faster retrieval.
Also moved the data formatters subsystem from the core to its own group and folder for easier management, and done some code reorganization.
The ObjC runtime v1 now returns a class name if asked for the dynamic type of an object. This is required for formatters caching to work with the v1 runtime.
Lastly, this commit disposes of the old hack where ValueObjects had to remember whether they were queried for formatters with their static or dynamic type.
Now the ValueObjectDynamicValue class works well enough that we can use its dynamic value setting for the same purpose.

llvm-svn: 173728
2013-01-28 23:47:25 +00:00
Greg Clayton ba7b8e2c8c Make sure that multi-line expressions don't create a default target. We recently switched to using a built-in m_exe_ctx when running commands in the DoExecute() so that we can have common code where commands can required having a valid target/process/thread/frame by specifying flags, this caused multi-line expression to always create a new dummy target because m_exe_ctx gets cleared when DoExecute exits. A new input reader has been pushed to handle the input for the expression, which will get popped off and then it was checking the target in m_exe_ctx (which was cleared).
llvm-svn: 173596
2013-01-26 23:54:29 +00:00
Jim Ingham 9d8dd4bf52 Missing newline in a warning message.
llvm-svn: 173519
2013-01-25 23:05:01 +00:00
Greg Clayton c7bece56fa <rdar://problem/13069948>
Major fixed to allow reading files that are over 4GB. The main problems were that the DataExtractor was using 32 bit offsets as a data cursor, and since we mmap all of our object files we could run into cases where if we had a very large core file that was over 4GB, we were running into the 4GB boundary.

So I defined a new "lldb::offset_t" which should be used for all file offsets.

After making this change, I enabled warnings for data loss and for enexpected implicit conversions temporarily and found a ton of things that I fixed.

Any functions that take an index internally, should use "size_t" for any indexes and also should return "size_t" for any sizes of collections.

llvm-svn: 173463
2013-01-25 18:06:21 +00:00
Enrico Granata 6b4ddc655a <rdar://problem/12437929>
Providing a special mode of operator for "memory read -f c-str" which actually works in most common cases
Where the old behavior would provide:
(lldb) mem read --format s `foo`
0x100000f5d: NULL

Now we do:
(lldb) mem read --format s `foo`
0x100000f5d: "hello world"

You can also specify a count and that many strings will be showed starting at the initial address:
(lldb) mem read -c 2 -f c-str `foo`
0x100000f1d: "hello world"
0x100000f29: "short"

llvm-svn: 173076
2013-01-21 19:20:50 +00:00
Enrico Granata bcba2b2b75 <rdar://problem/12786725>
If there is any alive process being debugged, the user is asked for confirmation before quitting LLDB
This should prevent situations where the user mistakenly types "q" and LLDB slaughters their process without any mercy whatsoever
Since it can quickly get tedious, there is a new setting on the command interpreter to disable this and replicate the previous behavior

llvm-svn: 172757
2013-01-17 21:36:19 +00:00
Jim Ingham 184e981111 Separated the "expr --unwind-on-error" behavior into two parts, actual errors (i.e. crashes) which continue to be
controlled by the --unwind-on-error flag, and --ignore-breakpoint which separately controls behavior when a called
function hits a breakpoint.  For breakpoints, we don't unwind, we either stop, or ignore the breakpoint, which makes
more sense.  
Also make both these behaviors globally settable through "settings set".
Also handle the case where a breakpoint command calls code that ends up re-hitting the breakpoint.  We were recursing
and crashing.  Now we just stop without calling the second command.

<rdar://problem/12986644>
<rdar://problem/9119325>

llvm-svn: 172503
2013-01-15 02:47:48 +00:00
Enrico Granata 93d5966513 <rdar://problem/12790664>
Single-character Unicode data formatters

llvm-svn: 172492
2013-01-14 23:53:26 +00:00
Greg Clayton 91c0e749e3 <rdar://problem/12973809>
Fixed an issue with the auto loading of script resources in debug info files. Any platform can add support for this, and on MacOSX we allow dSYM files to contain python modules that get automatically loaded when a dSYM file is associated with an executable or shared library. 

The modifications will now:
- Let the module locate the symbol file naturally instead of using a function that only works in certain cases. This helps us to locate the script resources as long as the dSYM file can be found.
- Don't try and do any of this if the script interpreter has scripting disabled.
- Allow more than one scripting resource to be found in a symbol file by returning the list
- Load the scripting resources when a symbol file is added via the "target symbols add" command.
- Be smarter about matching the dSYM mach-o file to an existing executable in the target images by stripping extensions on the symfile basname if needed.

llvm-svn: 172275
2013-01-11 23:44:27 +00:00
Greg Clayton e05b2efe27 Fixed an issue the "process plugin" proxy object was trying to use the m_exe_ctx when it wasn't ok to do so.
llvm-svn: 172014
2013-01-09 22:58:18 +00:00
Enrico Granata b576bba229 <rdar://problem/12028723>
Adding useful formatting options to the expression (expr) command.
As a side effect of this change, the -d option now supports the same three-values enumeration that frame variables uses (run, don't run, none) instead of a boolean like it did previously

These options do not apply to print, p or po because these are aliased to not take any options.
In order to use them, use expression or expr.

llvm-svn: 171993
2013-01-09 20:12:53 +00:00
Greg Clayton f9fc609fe7 Expanded the flags that can be set for a command object in lldb_private::CommandObject. This list of available flags are:
enum
{
    //----------------------------------------------------------------------
    // eFlagRequiresTarget
    //
    // Ensures a valid target is contained in m_exe_ctx prior to executing
    // the command. If a target doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidTargetDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidTargetDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresTarget         = (1u << 0),
    //----------------------------------------------------------------------
    // eFlagRequiresProcess
    //
    // Ensures a valid process is contained in m_exe_ctx prior to executing
    // the command. If a process doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidProcessDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidProcessDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresProcess        = (1u << 1),
    //----------------------------------------------------------------------
    // eFlagRequiresThread
    //
    // Ensures a valid thread is contained in m_exe_ctx prior to executing
    // the command. If a thread doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidThreadDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidThreadDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresThread         = (1u << 2),
    //----------------------------------------------------------------------
    // eFlagRequiresFrame
    //
    // Ensures a valid frame is contained in m_exe_ctx prior to executing
    // the command. If a frame doesn't exist or is invalid, the command
    // will fail and CommandObject::GetInvalidFrameDescription() will be
    // returned as the error. CommandObject subclasses can override the
    // virtual function for GetInvalidFrameDescription() to provide custom
    // strings when needed.
    //----------------------------------------------------------------------
    eFlagRequiresFrame          = (1u << 3),
    //----------------------------------------------------------------------
    // eFlagRequiresRegContext
    //
    // Ensures a valid register context (from the selected frame if there
    // is a frame in m_exe_ctx, or from the selected thread from m_exe_ctx)
    // is availble from m_exe_ctx prior to executing the command. If a
    // target doesn't exist or is invalid, the command will fail and
    // CommandObject::GetInvalidRegContextDescription() will be returned as
    // the error. CommandObject subclasses can override the virtual function
    // for GetInvalidRegContextDescription() to provide custom strings when
    // needed.
    //----------------------------------------------------------------------
    eFlagRequiresRegContext     = (1u << 4),
    //----------------------------------------------------------------------
    // eFlagTryTargetAPILock
    //
    // Attempts to acquire the target lock if a target is selected in the
    // command interpreter. If the command object fails to acquire the API
    // lock, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagTryTargetAPILock       = (1u << 5),
    //----------------------------------------------------------------------
    // eFlagProcessMustBeLaunched
    //
    // Verifies that there is a launched process in m_exe_ctx, if there
    // isn't, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagProcessMustBeLaunched  = (1u << 6),
    //----------------------------------------------------------------------
    // eFlagProcessMustBePaused
    //
    // Verifies that there is a paused process in m_exe_ctx, if there
    // isn't, the command will fail with an appropriate error message.
    //----------------------------------------------------------------------
    eFlagProcessMustBePaused    = (1u << 7)
};

Now each command object contains a "ExecutionContext m_exe_ctx;" member variable that gets initialized prior to running the command. The validity of the target objects in m_exe_ctx are checked to ensure that any target/process/thread/frame/reg context that are required are valid prior to executing the command. Each command object also contains a Mutex::Locker m_api_locker which gets used if eFlagTryTargetAPILock is set. This centralizes a lot of checking code that was previously and inconsistently implemented across many commands.

llvm-svn: 171990
2013-01-09 19:44:40 +00:00
Jim Ingham 196bbc2571 Add a "--reverse" or "-r" option to the "list" with no options command. This will list backwards from the
last source point listed.
Also fix the setting of the default file & line to the file containing main, when you do a plain "list".

<rdar://problem/12685226>

llvm-svn: 171945
2013-01-09 03:27:33 +00:00
Jim Ingham a0b151715a If we can't find the python function for a given summary, print the name of the function in the warning message.
llvm-svn: 170729
2012-12-20 20:08:17 +00:00
Daniel Malea f00b751175 Fix typo in error message (print requested URL instead of command name when plugin missing)
llvm-svn: 170447
2012-12-18 20:00:40 +00:00
Jim Ingham 17fafa155c Remove the “len” defaulted parameter from CommandReturnObject::AppendMessage, AppendWarning and AppendError. Nobody was using them, and it meant if you accidentally used the AppendWarning when you meant AppendWarningWithFormat with an integer in the format string, it would compile and then return your string plus some unknown amount of junk.
llvm-svn: 170266
2012-12-15 02:40:54 +00:00
Greg Clayton 2e1f745da7 <rdar://problem/11990131>
Memory read's "repeat" behavior forgets "-t" option. It also formatted the type as hex bytes + ASCII. Now we revert to the default format when displaying types unless the user sets the format option manually.

llvm-svn: 170265
2012-12-15 02:08:17 +00:00
Greg Clayton 1fb2e7dfe1 Switch "disassemble" with no arguments or options to disassemble the current frame instead of around the current PC.
llvm-svn: 170254
2012-12-14 22:36:35 +00:00
Filipe Cabecinhas 78ae27064a Fixed a typo.
llvm-svn: 170239
2012-12-14 20:38:58 +00:00
Greg Clayton 136dff8725 Cleaned up the UUID mismatch just printing itself whenever it wants to by allowing an optional feedback stream to be passed along when getting the symbol vendor.
llvm-svn: 170174
2012-12-14 02:15:00 +00:00
Sean Callanan bf4b7be68e Removed the == and != operators from ArchSpec, since
equality can be strict or loose and we want code to
explicitly choose one or the other.

Also renamed the Compare function to IsEqualTo, to
avoid confusion.

<rdar://problem/12856749>

llvm-svn: 170152
2012-12-13 22:07:14 +00:00
Sean Callanan b36c6c0955 Made "target modules add" flush the process to
reset stack frames etc.

<rdar://problem/12842024>

llvm-svn: 170079
2012-12-13 01:39:39 +00:00
Enrico Granata eb17816bf4 <rdar://problem/10898363>
Emitting a warning when defining a summary or a synthetic provider and the function/class name provided does not correspond to a valid scripting object

Also using this chance to edit a few error messages from weird "internal error" markers to actual user-legible data!

llvm-svn: 170013
2012-12-12 20:11:05 +00:00
Jim Ingham c627682ef7 Fixed a few bugs in the "step in" thread plan logic.
Added a "step-in-target" flag to "thread step-in" so if you have something like:

Process 28464 stopped
* thread #1: tid = 0x1c03, function: main , stop reason = breakpoint 1.1
    frame #0: 0x0000000100000e08 a.out`main at main.c:62
   61         
-> 62         int A6 = complex (a(4), b(5), c(6)); // Stop here to step targetting b and hitting breakpoint.
   63             

and you want to get into "complex" skipping a, b and c, you can do:

(lldb) step -t complex
Process 28464 stopped
* thread #1: tid = 0x1c03, function: complex , stop reason = step in
    frame #0: 0x0000000100000d0d a.out`complex at main.c:44
   41     
   42     int complex (int first, int second, int third)
   43     {
-> 44         return first + second + third;  // Step in targetting complex should stop here
   45     }
   46         
   47     int main (int argc, char const *argv[])

llvm-svn: 170008
2012-12-12 19:58:40 +00:00
Sean Callanan a87ecb43ab Minor grammar and style fixes in documentation.
<rdar://problem/12861963>
<rdar://problem/12861904>

llvm-svn: 169997
2012-12-12 18:02:47 +00:00
Enrico Granata 7b8c513f08 Option changes:
the option to print the runtime-specific description has been modified in the frame variable, memory read and expression command.

All three commands now support a --object-description option, with a shortcut of -O (uppercase letter o)

This is a breaking change:
frame variable used --objc as the long option name
expression used -o as a shortcut
memory read uses --objd as the long option name

Hopefully, most users won't be affected by the change since people tend to access "expression --object-description" under the alias "po" which still works

The test suite has been tweaked accordingly.

llvm-svn: 169961
2012-12-12 03:23:37 +00:00
Greg Clayton 89deb06bbb <rdar://problem/12780507>
Fix add-dsym ("target symbols add") to correctly add a dSYM file when the target arch doesn't match the arch of the module.

llvm-svn: 169952
2012-12-12 01:15:30 +00:00
Jim Ingham c3faa19577 Broadcast an event when the selected thread is changed.
<rdar://problem/10976636>

llvm-svn: 169810
2012-12-11 02:31:48 +00:00
Daniel Malea a85e6b6c32 Fix a few more clang (3.2) warnings on Linux:
- remove unused members
- add NO_PEDANTIC to selected Makefiles
- fix return values (removed NULL as needed)
- disable warning about four-char-constants
- remove unneeded const from operator*() declaration
- add missing lambda function return types
- fix printf() with no format string
- change sizeof to use a type name instead of variable name
- fix Linux ProcessMonitor.cpp to be 32/64 bit friendly
- disable warnings emitted by swig-generated C++ code

Patch by Matt Kopec!

llvm-svn: 169645
2012-12-07 22:21:08 +00:00
Greg Clayton 889037d754 <rdar://problem/10903854>
log enable now resolves the "--file" option in case it contains ~.

llvm-svn: 169623
2012-12-07 18:37:09 +00:00
Greg Clayton c1a9ecd873 <rdar://problem/8908550>
Added "--address" as an available option for "source list".

llvm-svn: 169567
2012-12-07 00:19:47 +00:00