Commit Graph

44 Commits

Author SHA1 Message Date
Zachary Turner 2f3df6137a iwyu fixes for lldbCore.
This adjusts header file includes for headers and source files
in Core.  In doing so, one dependency cycle is eliminated
because all the includes from Core to that project were dead
includes anyway.  In places where some files in other projects
were only compiling due to a transitive include from another
header, fixups have been made so that those files also include
the header they need.  Tested on Windows and Linux, and plan
to address failures on OSX and FreeBSD after watching the
bots.

llvm-svn: 299714
2017-04-06 21:28:29 +00:00
Zachary Turner df44988b87 Break some dependencies in lldbUtility.
Differential Revision: https://reviews.llvm.org/D29359

llvm-svn: 293806
2017-02-01 19:45:14 +00:00
Kate Stone b9c1b51e45 *** This commit represents a complete reformatting of the LLDB source code
*** to conform to clang-format’s LLVM style.  This kind of mass change has
*** two obvious implications:

Firstly, merging this particular commit into a downstream fork may be a huge
effort.  Alternatively, it may be worth merging all changes up to this commit,
performing the same reformatting operation locally, and then discarding the
merge for this particular commit.  The commands used to accomplish this
reformatting were as follows (with current working directory as the root of
the repository):

    find . \( -iname "*.c" -or -iname "*.cpp" -or -iname "*.h" -or -iname "*.mm" \) -exec clang-format -i {} +
    find . -iname "*.py" -exec autopep8 --in-place --aggressive --aggressive {} + ;

The version of clang-format used was 3.9.0, and autopep8 was 1.2.4.

Secondly, “blame” style tools will generally point to this commit instead of
a meaningful prior commit.  There are alternatives available that will attempt
to look through this change and find the appropriate prior commit.  YMMV.

llvm-svn: 280751
2016-09-06 20:57:50 +00:00
Greg Clayton 3385fa08bf Since our expression parser needs to locate areas of memory that are not in use when you have a process that can't JIT code, like core file debugging, the core file process plug-ins should be able to override the Process::GetMemoryRegionInfo(...) function.
In order to make this happen, I have added permissions to sections so that we can know what the permissions are for a given section, and modified both core file plug-ins to override Process::GetMemoryRegionInfo() and answer things correctly.

llvm-svn: 272276
2016-06-09 16:34:06 +00:00
Jim Ingham 9d9b46bf74 Remove unnecessary <limits> includes.
llvm-svn: 263588
2016-03-15 21:11:02 +00:00
Jim Ingham 1c58d5ac90 Actually implement Section::GetSectionData.
llvm-svn: 252024
2015-11-04 01:02:43 +00:00
Zachary Turner 5023257f23 Move some functions from source/lldb.cpp to Utility.
Specifically, there were some functions for converting enums
to strings and a function for matching a string using a specific
matching algorithm.  This moves those functions to more appropriate
headers in lldb/Utility and updates references to include the
new headers.

llvm-svn: 232673
2015-03-18 21:31:45 +00:00
Matthew Gardiner f03e6d84bc Very minimal support 24-bit kalimbas. Vanilla "memory read" for data sections
works, as do breakpoints, run and pause, display zeroth frame.

See
http://reviews.llvm.org/D5503

for a fuller description of the changes in this commit.

llvm-svn: 218596
2014-09-29 08:02:24 +00:00
Greg Clayton 48672afb66 Patch from Keno Fischer to enable JITLoaderGDB with mach-o file support.
The patch is as is with the functionality left disabled for apple vendors because of performance regressions. If this is enabled it ends up searching for symbols in all shared libraries that are loadeded.

llvm-svn: 211638
2014-06-24 22:22:43 +00:00
Todd Fiala fd8ae3a140 Replace SIZE_T_MAX with std::numeric_limits value in Section.cpp.
SIZE_T_MAX is not available on Linux.

llvm-svn: 208789
2014-05-14 16:15:43 +00:00
Greg Clayton 3698a715ee Don't assert and crash when sections are malformed.
<rdar://problem/16833247>

llvm-svn: 208749
2014-05-14 01:12:09 +00:00
Greg Clayton d5944cd118 For logical backtrace work, lldb needs to track Module unloads etc & symoblicate an address based on a point in time
<rdar://problem/15314403> 

This patch adds a new lldb_private::SectionLoadHistory class that tracks what shared libraries were loaded given a process stop ID. This allows us to keep a history of the sections that were loaded for a time T. Many items in history objects will rely upon the process stop ID in the future.

llvm-svn: 196557
2013-12-06 01:12:00 +00:00
Jason Molenda 20eb31b907 Add a new Section::SetFileAddress method to change a Section's file
address.

When loading a dSYM, and the file addresses of the dSYM Sections are
different than the executable binary Sections' file addresses, the
debug info won't be remapped to the actual load addresses correctly.
This only happens with binaries on the in-memory shared cache binaries
where their File addresses have been set to their actual load address
(outside an offset value) whereas the original executable and dSYM
have 0-based File addresses.

I think this patch will not be activated for other cases -- this is
the only case we know of where the dSYM and the executable's File
addresses differ -- but if this causes other problems we can restrict
it more carefully.

<rdar://problem/12335086> 

llvm-svn: 188532
2013-08-16 03:20:42 +00:00
Greg Clayton 3046e66830 Cleanup on the unified section list changes. Main changes are:
- ObjectFile::GetSymtab() and ObjectFile::ClearSymtab() no longer takes any flags
- Module coordinates with the object files and contain a unified section list so that object file and symbol file can share sections when they need to, yet contain their own sections.

Other cleanups:
- Fixed Symbol::GetByteSize() to not have the symbol table compute the byte sizes on the fly
- Modified the ObjectFileMachO class to compute symbol sizes all at once efficiently
- Modified the Symtab class to store a file address lookup table for more efficient lookups
- Removed Section::Finalize() and SectionList::Finalize() as they did nothing
- Improved performance of the detection of symbol files that have debug maps by excluding stripped files and core files, debug files, object files and stubs
- Added the ability to tell if an ObjectFile has been stripped with ObjectFile::IsStripped() (used this for the above performance improvement)

llvm-svn: 185990
2013-07-10 01:23:25 +00:00
Michael Sartain a7499c9830 Split symbol support for ELF and Linux.
llvm-svn: 185366
2013-07-01 19:45:50 +00:00
Greg Clayton d8c3d4b1e9 Implemented a types.py module that allows types to be inspected for padding.
The script was able to point out and save 40 bytes in each lldb_private::Section by being very careful where we need to have virtual destructors and also by re-ordering members.

llvm-svn: 184364
2013-06-19 21:50:28 +00:00
Greg Clayton 9422dd64f8 <rdar://problem/13338643>
DWARF with .o files now uses 40-60% less memory!

Big fixes include:
- Change line table internal representation to contain "file addresses". Since each line table is owned by a compile unit that is owned by a module, it makes address translation into lldb_private::Address easy to do when needed.
- Removed linked address members/methods from lldb_private::Section and lldb_private::Address
- lldb_private::LineTable can now relink itself using a FileRangeMap to make it easier to re-link line tables in the future
- Added ObjectFile::ClearSymtab() so that we can get rid of the object file symbol tables after we parse them once since they are not needed and kept memory allocated for no reason
- Moved the m_sections_ap (std::auto_ptr to section list) and m_symtab_ap (std::auto_ptr to the lldb_private::Symtab) out of each of the ObjectFile subclasses and put it into lldb_private::ObjectFile.
- Changed how the debug map is parsed and stored to be able to:
    - Lazily parse the debug map for each object file
    - not require the address map for a .o file until debug information is linked for a .o file

llvm-svn: 176454
2013-03-04 21:46:16 +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
Daniel Malea d01b2953fa Resolve printf formatting warnings on Linux:
- use macros from inttypes.h for format strings instead of OS-specific types

Patch from Matt Kopec!

llvm-svn: 168945
2012-11-29 21:49:15 +00:00
Greg Clayton fc6d50e120 Fixed an indentation issue that only shows up when dumping .o files that use linked addresses (DWARF in .o files with debug map).
llvm-svn: 165740
2012-10-11 20:42:53 +00:00
Sean Callanan 27e02d07fd Added a check to the Section to make sure we don't
return sections that don't have valid modules.

<rdar://problem/11605824>

llvm-svn: 160141
2012-07-12 20:44:21 +00:00
Greg Clayton 7820bd1e52 <rdar://problem/11357711>
Fixed a crasher where the section load list was not thread safe.

llvm-svn: 159884
2012-07-07 01:24:12 +00:00
Sean Callanan 5677536bff Committed a change to the SectionList that introduces
a cache of address ranges for child sections,
accelerating lookups.  This cache is built during
object file loading, and is then set in stone once
the object files are done loading.  (In Debug builds,
we ensure that the cache is never invalidated after
that.)

llvm-svn: 158188
2012-06-08 02:16:08 +00:00
Greg Clayton 741f3f9a55 lldb_private::Section objects have a boolean flag that can be set that
indicates that the section is thread specific. Any functions the load a module
given a slide, will currently ignore any sections that are thread specific.

lldb_private::Section now has:

bool
Section::IsThreadSpecific () const
{
    return m_thread_specific;
}

void
Section::SetIsThreadSpecific (bool b)
{
    m_thread_specific = b;
}

The ELF plug-in has been modified to set this for the ".tdata" and the ".tbss"
sections.

Eventually we need to have each lldb_private::Thread subclass be able to 
resolve a thread specific section, but for now they will just not resolve. The
code for that should be trivual to add, but the address resolving functions
will need to be changed to take a "ExecutionContext" object instead of just
a target so that thread specific sections can be resolved.

llvm-svn: 153537
2012-03-27 21:10:07 +00:00
Greg Clayton e72dfb321c <rdar://problem/10103468>
I started work on being able to add symbol files after a debug session
had started with a new "target symfile add" command and quickly ran into
problems with stale Address objects in breakpoint locations that had 
lldb_private::Section pointers into modules that had been removed or 
replaced. This also let to grabbing stale modules from those sections. 
So I needed to thread harded the Address, Section and related objects.

To do this I modified the ModuleChild class to now require a ModuleSP
on initialization so that a weak reference can created. I also changed
all places that were handing out "Section *" to have them hand out SectionSP.
All ObjectFile, SymbolFile and SymbolVendors were inheriting from ModuleChild
so all of the find plug-in, static creation function and constructors now
require ModuleSP references instead of Module *. 

Address objects now have weak references to their sections which can
safely go stale when a module gets destructed. 

This checkin doesn't complete the "target symfile add" command, but it
does get us a lot clioser to being able to do such things without a high
risk of crashing or memory corruption.

llvm-svn: 151336
2012-02-24 01:59:29 +00:00