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information from the Objective-C runtime.
This patch takes the old AppleObjCSymbolVendor and
replaces it with an AppleObjCTypeVendor, which is
much more lightweight. Specifically, the SymbolVendor
needs to pretend that there is a backing symbol file
for the Types it vends, whereas a TypeVendor only
vends bare ClangASTTypes. These ClangASTTypes only
need to exist in an ASTContext.
The ClangASTSource now falls back to the runtime's
TypeVendor (if one exists) if the debug information
doesn't find a complete type for a particular
Objective-C interface. The runtime's TypeVendor
maintains an ASTContext full of types it knows about,
and re-uses the ISA-based type query information used
by the ValueObjects.
Currently, the runtime's TypeVendor doesn't provide
useful answers because we haven't yet implemented a
way to iterate across all ISAs contained in the target
process's runtime. That's the next step.
llvm-svn: 163651
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the Objective-C language runtime plugin expose class descriptors objects akin to the objc_runtime.py Pythonic implementation. Rewrite the data formatters for some core Cocoa classes in C++ instead of Python.
llvm-svn: 163155
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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
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Fixed type lookups to "do the right thing". Prior to this fix, looking up a type using "foo::bar" would result in a type list that contains all types that had "bar" as a basename unless the symbol file was able to match fully qualified names (which our DWARF parser does not).
This fix will allow type matches to be made based on the basename and then have the types that don't match filtered out. Types by name can be fully qualified, or partially qualified with the new "bool exact_match" parameter to the Module::FindTypes() method.
This fixes some issue that we discovered with dynamic type resolution as well as improves the overall type lookups in LLDB.
llvm-svn: 153482
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This takes two important changes:
- Calling blocks is now supported. You need to
cast their return values, but that works fine.
- We now can correctly run JIT-compiled
expressions that use floating-point numbers.
Also, we have taken a fix that allows us to
ignore access control in Objective-C as in C++.
llvm-svn: 152286
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Objective-C classes. This allows LLDB to find
ivars declared in class extensions in modules other
than where the debugger is currently stopped (we
already supported this when the debugger was
stopped in the same module as the definition).
This involved the following main changes:
- The ObjCLanguageRuntime now knows how to hunt
for the authoritative version of an Objective-C
type. It looks for the symbol indicating a
definition, and then gets the type from the
module containing that symbol.
- ValueObjects now report their type with a
potential override, and the override is set if
the type of the ValueObject is an Objective-C
class or pointer type that is defined somewhere
other than the original reported type. This
means that "frame variable" will always use the
complete type if one is available.
- The ClangASTSource now looks for the complete
type when looking for ivars. This means that
"expr" will always use the complete type if one
is available.
- I added a testcase that verifies that both
"frame variable" and "expr" work.
llvm-svn: 151214
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lldb.value()
It it designed to be given a lldb.SBValue object and it allows natural
use of a variable value:
pt = lldb.value(lldb.frame.FindVariable("pt"))
print pt
print pt.x
print pt.y
pt = lldb.frame.FindVariable("rectangle_array")
print rectangle_array[12]
print rectangle_array[5].origin.x
Note that array access works just fine and works on arrays or pointers:
pt = lldb.frame.FindVariable("point_ptr")
print point_ptr[5].y
Also note that pointer child accesses are done using a "." instead of "->":
print point_ptr.x
llvm-svn: 149464
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be fetched too many times and the DisassemblerLLVM was appending to strings
when the opcode, mnemonic and comment accessors were called multiple times
and if any of the strings were empty.
Also fixed the test suite failures from recent Objective C modifications.
llvm-svn: 148460
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objects.
llvm-svn: 148450
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necessary.
llvm-svn: 148445
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so we don't have to lookup types in a type list by ID.
Changed the DWARF parser to remove the "can externally complete myself" bits
from the type when we are in the process of completing the type itself to
avoid an onslaught of external visible decl requests from the
clang::ExternalASTSource.
llvm-svn: 142461
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index the DWARF. Also fixed an issue with memory accelerator tables with a
size of 1 where we would loop infinitely.
Added support for parsing the new .apple_namespaces section which gives us a
memory hash table for looking up namespaces.
llvm-svn: 141128
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store the per-Target default Source File & Line.
Set the default Source File & line to main (if it can be found.) at startup. Selecting the current thread & or frame resets
the current source file & line, and "source list" as well as the breakpoint command "break set -l <NUM>" will use the
current source file.
llvm-svn: 139323
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in ObjCLanguageRuntime.
Add the category-free name of symbols to the Symtab name-to-index list.
llvm-svn: 137600
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llvm-svn: 133831
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llvm-svn: 130701
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don't crash if we disable logging when some code already has a copy of the
logger. Prior to this fix, logs were handed out as pointers and if they were
held onto while a log got disabled, then it could cause a crash. Now all logs
are handed out as shared pointers so this problem shouldn't happen anymore.
We are also using our new shared pointers that put the shared pointer count
and the object into the same allocation for a tad better performance.
llvm-svn: 118319
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Also move the Checker creation into the Apple Runtime code.
llvm-svn: 118255
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implementation of the Objective-C object checkers
into the Objective-C language runtime.
llvm-svn: 118226
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available.
llvm-svn: 115115
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Value::GetValueOpaqueClangQualType.
But mostly, move the ObjC Trampoline handling code from the MacOSX dyld plugin to the AppleObjCRuntime classes.
llvm-svn: 114935
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llvm-svn: 114620
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