Commit Graph

76 Commits

Author SHA1 Message Date
Saleem Abdulrasool 324a103619 sweep up -Wformat warnings from gcc
This is a purely mechanical change explicitly casting any parameters for printf
style conversion.  This cleans up the warnings emitted by gcc 4.8 on Linux.

llvm-svn: 205607
2014-04-04 04:06:10 +00:00
Greg Clayton baf6e8e4b1 Include <mutex> for std::once.
llvm-svn: 204632
2014-03-24 18:08:18 +00:00
Greg Clayton 1d77a8203b Modified patch from Piotr Rak that makes GetSharedModuleList() more thread safe and also fixed a missed member initialization on the copy contractor and also makes the assignment operator safer.
llvm-svn: 204622
2014-03-24 16:50:33 +00:00
Richard Mitton f86248d9ba Added a 'jump' command, similar to GDBs.
This allows the PC to be directly changed to a different line.
It's similar to the example python script in examples/python/jump.py, except implemented as a builtin.

Also this version will track the current function correctly even if the target line resolves to multiple addresses. (e.g. debugging a templated function)

llvm-svn: 190572
2013-09-12 02:20:34 +00:00
Greg Clayton fd814c5a64 <rdar://problem/14717184>
LLDB needs in memory module load level settings to control how much information is read from memory when loading in memory modules. This change adds a new setting:

(lldb) settings set target.memory-module-load-level [minimal|partial|complete]

minimal will load only sections (no symbols, or function bounds via function starts or EH frame)
partial will load sections + bounds
complete will load sections + bounds + symbols

llvm-svn: 188246
2013-08-13 01:42:25 +00:00
Michael Sartain cc791bbfab Fix "source list -n printf" on Linux (printf is symbol alias for __printf)
Differential Revision: http://llvm-reviews.chandlerc.com/D1109

llvm-svn: 186104
2013-07-11 16:40:56 +00:00
Enrico Granata 9730339bdf Improving the previous checkin about target.load-script-from-symbol-file
There are two settings:
target.load-script-from-symbol-file is a boolean that says load or no load (default: false)
target.warn-on-script-from-symbol-file is also a boolean, it says whether you want to be warned when a script file is not loaded due to security (default: true)

the auto loading on change for target.load-script-from-symbol-file is preserved

llvm-svn: 182336
2013-05-21 00:00:30 +00:00
Enrico Granata caa84cbc01 Forgot to check for empty error strings in the previous checkin
llvm-svn: 182325
2013-05-20 22:40:54 +00:00
Enrico Granata 84a53dfb49 <rdar://problem/13878726>
This changes the setting target.load-script-from-symbol-file to be a ternary enum value:
default (the default value) will NOT load the script files but will issue a warning suggesting workarounds
yes will load the script files
no will not load the script files AND will NOT issue any warning

if you change the setting value from default to yes, that will then cause the script files to be loaded
(the assumption is you didn't know about the setting, got a warning, and quickly want to remedy it)

if you have a settings set command for this in your lldbinit file, be sure to change "true" or "false" into an appropriate "yes" or "no" value

llvm-svn: 182323
2013-05-20 22:29:23 +00:00
Jason Molenda c16b4af0d7 Remove the UUID::GetAsCString() method which required a buffer to save the
UUID string in; added UUID::GetAsString() which returns the uuid string in
a std::string.  Updated callers to use the new method.

llvm-svn: 181078
2013-05-03 23:56:12 +00:00
Greg Clayton b5ad4ec7a3 Cleanup logging to use the new "std::string FileSpec::GetPath()" function. Also added a similar function for modules:
std::string
Module::GetSpecificationDescription () const;

This returns the module as "/usr/lib/libfoo.dylib" for normal files (calls "std::string FileSpec::GetPath()" on m_file) but it also might include the object name in case the module is for a .o file in a BSD archive ("/usr/lib/libfoo.a(bar.o)"). Cleaned up necessary logging code to use it.

llvm-svn: 180717
2013-04-29 17:25:54 +00:00
Greg Clayton 43fe217b11 <rdar://problem/13506727>
Symbol table function names should support lookups like symbols with debug info. 

To fix this I:
- Gutted the way FindFunctions is used, there used to be way too much smarts only in the DWARF plug-in
- Made it more efficient by chopping the name up once and using simpler queries so that SymbolFile and Symtab plug-ins don't need to do as much
- Filter the results at a higher level
- Make the lldb_private::Symtab able to chop up C++ mangled names and make as much sense out of them as possible and also be able to search by basename, fullname, method name, and selector name.

llvm-svn: 178608
2013-04-03 02:00:15 +00:00
Greg Clayton 5160ce5c72 <rdar://problem/13521159>
LLDB is crashing when logging is enabled from lldb-perf-clang. This has to do with the global destructor chain as the process and its threads are being torn down.

All logging channels now make one and only one instance that is kept in a global pointer which is never freed. This guarantees that logging can correctly continue as the process tears itself down.

llvm-svn: 178191
2013-03-27 23:08:40 +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 efe637d440 Minor cleanups to the new ModuleList notification APIs: passing in the ModuleList as part of the callbacks, and not copying the notifier as part of copy constructing and assigning
llvm-svn: 167592
2012-11-08 19:16:03 +00:00
Enrico Granata 1759848be0 <rdar://problem/12586350>
This commit does three things:
(a) introduces a new notification model for adding/removing/changing modules to a ModuleList, and applies it to the Target's ModuleList, so that we make sure to always trigger the right set of actions
whenever modules come and go in a target. Certain spots in the code still need to "manually" notify the Target for several reasons, so this is a work in progress
(b) adds a new capability to the Platforms: locating a scripting resources associated to a module. A scripting resource is a Python file that can load commands, formatters, ... and any other action
of interest corresponding to the loading of a module. At the moment, this is only implemented on Mac OS X and only for files inside .dSYM bundles - the next step is going to be letting
the frameworks themselves hold their scripting resources. Implementors of platforms for other systems are free to implement "the right thing" for their own worlds
(c) hooking up items (a) and (b) so that targets auto-load the scripting resources as the corresponding modules get loaded in a target. This has a few caveats at the moment:
 - the user needs to manually add the .py file to the dSYM (soon, it will also work in the framework itself)
 - if two modules with the same name show up during the lifetime of an LLDB session, the second one won't be able to load its scripting resource, but will otherwise work just fine

llvm-svn: 167569
2012-11-08 02:22:02 +00:00
Greg Clayton 3a18e31945 Added a new "module" log channel which covers module creation, deletion, and common module list actions.
Also added a new option for "log enable" which is "--stack" which will print out a stack backtrace for each log line.

This was used to track down the leaking module issue I fixed last week.

llvm-svn: 165438
2012-10-08 22:41:53 +00:00
Enrico Granata 83805259e1 <rdar://problem/12408181> Fixing a bug where we would try to look for types in a module, and then fail to look for them anywhere else because the same SymbolContext was being passed everywhere
llvm-svn: 165169
2012-10-03 21:31:35 +00:00
Greg Clayton 6f4d8af713 <rdar://problem/12125274>
Intentionally leak the module list to avoid unnecessary freeing of modules + object files + symbol files when the program is exiting.

llvm-svn: 164184
2012-09-18 23:50:22 +00:00
Greg Clayton 1f7460716b <rdar://problem/11757916>
Make breakpoint setting by file and line much more efficient by only looking for inlined breakpoint locations if we are setting a breakpoint in anything but a source implementation file. Implementing this complex for a many reasons. Turns out that parsing compile units lazily had some issues with respect to how we need to do things with DWARF in .o files. So the fixes in the checkin for this makes these changes:
- Add a new setting called "target.inline-breakpoint-strategy" which can be set to "never", "always", or "headers". "never" will never try and set any inlined breakpoints (fastest). "always" always looks for inlined breakpoint locations (slowest, but most accurate). "headers", which is the default setting, will only look for inlined breakpoint locations if the breakpoint is set in what are consudered to be header files, which is realy defined as "not in an implementation source file". 
- modify the breakpoint setting by file and line to check the current "target.inline-breakpoint-strategy" setting and act accordingly
- Modify compile units to be able to get their language and other info lazily. This allows us to create compile units from the debug map and not have to fill all of the details in, and then lazily discover this information as we go on debuggging. This is needed to avoid parsing all .o files when setting breakpoints in implementation only files (no inlines). Otherwise we would need to parse the .o file, the object file (mach-o in our case) and the symbol file (DWARF in the object file) just to see what the compile unit was.
- modify the "SymbolFileDWARFDebugMap" to subclass lldb_private::Module so that the virtual "GetObjectFile()" and "GetSymbolVendor()" functions can be intercepted when the .o file contenst are later lazilly needed. Prior to this fix, when we first instantiated the "SymbolFileDWARFDebugMap" class, we would also make modules, object files and symbol files for every .o file in the debug map because we needed to fix up the sections in the .o files with information that is in the executable debug map. Now we lazily do this in the DebugMapModule::GetObjectFile()

Cleaned up header includes a bit as well.

llvm-svn: 162860
2012-08-29 21:13:06 +00:00
Greg Clayton 1d60909e81 <rdar://problem/11740973>
Fixed issues that could happen when the UUID doesn't change in a binary and old stale debug info could end up being used.

llvm-svn: 160145
2012-07-12 22:51:12 +00:00
Greg Clayton 4e0fe8ab95 <rdar://problem/11791234>
Fixed a case where the python interpreter could end up holding onto a previous lldb::SBProcess (probably in lldb.process) when run under Xcode. Prior to this fix, the lldb::SBProcess held onto a shared pointer to a lldb_private::Process. This in turn could cause the process to still have a thread list with stack frames. The stack frames would have module shared pointers in the lldb_private::SymbolContext objects. 

We also had issues with things staying in the shared module list too long when we found things by UUID (we didn't remove the out of date ModuleSP from the global module cache).

Now all of this is fixed and everything goes away between runs.

llvm-svn: 160140
2012-07-12 20:32:19 +00:00
Greg Clayton 8921ce8396 Fix the copy constructor and assignement operator for ModuleList to be thread safe.
llvm-svn: 159285
2012-06-27 19:59:26 +00:00
Jim Ingham 3ee12ef26e We were accessing the ModuleList in the target without locking it for tasks like
setting breakpoints.  That's dangerous, since while we are setting a breakpoint,
the target might hit the dyld load notification, and start removing modules from
the list.  This change adds a GetMutex accessor to the ModuleList class, and
uses it whenever we are accessing the target's ModuleList (as returned by GetImages().)

<rdar://problem/11552372>

llvm-svn: 157668
2012-05-30 02:19:25 +00:00
Jim Ingham 4a94c91077 If we notice that a module with a given file path is replaced by another with the same file
path on rerunning, evict the old module from the target module list, inform the breakpoints
about this so they can do something intelligent as well.

rdar://problem/11273043

llvm-svn: 157008
2012-05-17 18:38:42 +00:00