added a final newline to fooSynthProvider.py
new option to automatically save user input in InputReaderEZ
checking for NULL pointers in several new places
llvm-svn: 135916
- you can now define a Python class as a synthetic children producer for a type
the class must adhere to this "interface":
def __init__(self, valobj, dict):
def get_child_at_index(self, index):
def get_child_index(self, name):
then using type synth add -l className typeName
(e.g. type synth add -l fooSynthProvider foo)
(This is still WIP with lots to be added)
A small test case is available also as reference
llvm-svn: 135865
(e.g. ${var%S}). this might already be the default if your variable is of an aggregate type
new feature: synthetic filters. you can restrict the number of children for your variables to only a meaningful subset
- the restricted list of children obeys the typical rules (e.g. summaries prevail over children)
- one-line summaries show only the filtered (synthetic) children, if you type an expanded summary string, or you use Python scripts, all the real children are accessible
- to provide a synthetic children list use the "type synth add" command, as in:
type synth add foo_type --child varA --child varB[0] --child varC->packet->flags[1-4]
(you can use ., ->, single-item array operator [N] and bitfield operator [N-M]; array slice access is not supported, giving simplified names to expression paths is not supported)
- a new -S option to frame variable and target variable lets you override synthetic children and instead show real ones
llvm-svn: 135731
Used hand merge to apply the diffs. I did not apply the diffs for FormatManager.h and
the diffs for memberwise initialization for ValueObject.cpp because they changed since.
I will ask my colleague to apply them later.
llvm-svn: 135508
Code cleanup:
- The Format Manager implementation is now split between two files: FormatClasses.{h|cpp} where the
actual formatter classes (ValueFormat, SummaryFormat, ...) are implemented and
FormatManager.{h|cpp} where the infrastructure classes (FormatNavigator, FormatManager, ...)
are contained. The wrapper code always remains in Debugger.{h|cpp}
- Several leftover fields, methods and comments from previous design choices have been removed
type category subcommands (enable, disable, delete) now can take a list of category names as input
- for type category enable, saying "enable A B C" is the same as saying
enable C
enable B
enable A
(the ordering is relevant in enabling categories, and it is expected that a user typing
enable A B C wants to look into category A, then into B, then into C and not the other
way round)
- for the other two commands, the order is not really relevant (however, the same inverted ordering
is used for consistency)
llvm-svn: 135494
"struct sockaddr_storage" into a new host class called SocketAddress. This
will allow us to control the host specific implementations (such as how to
get the length) into a single Host specific class.
llvm-svn: 135488
an executable file if it is right next to a dSYM file that is found using
DebugSymbols. The code also looks into a bundle if the dSYM file is right
next to a bundle.
Modified the MacOSX kernel dynamic loader plug-in to correctly set the load
address for kext sections. This is a tad tricky because of how LLDB chooses
to treat mach-o segments with no name. Also modified the loader to properly
handle the older version 1 kext summary info.
Fixed a crasher in the Mach-o object file parser when it is trying to set
the section size correctly for dSYM sections.
Added packet dumpers to the CommunicationKDP class. We now also properly
detect address byte sizes based on the cpu type and subtype that is provided.
Added a read memory and read register support to CommunicationKDP. Added a
ThreadKDP class that now uses subclasses of the RegisterContextDarwin_XXX for
arm, i386 and x86_64.
Fixed some register numbering issues in the RegisterContextDarwin_arm class
and added ARM GDB numbers to the ARM_GCC_Registers.h file.
Change the RegisterContextMach_XXX classes over to subclassing their
RegisterContextDarwin_XXX counterparts so we can share the mach register
contexts between the user and kernel plug-ins.
llvm-svn: 135466
The "systemwide summaries" feature has been removed and replaced with a more general and
powerful mechanism.
Categories:
- summaries can now be grouped into buckets, called "categories" (it is expected that categories
correspond to libraries and/or runtime environments)
- to add a summary to a category, you can use the -w option to type summary add and give
a category name (e.g. type summary add -f "foo" foo_t -w foo_category)
- categories are by default disabled, which means LLDB will not look into them for summaries,
to enable a category use "type category enable". once a category is enabled, LLDB will
look into that category for summaries. the rules are quite trivial: every enabled category
is searched for an exact match. if an exact match is nowhere to be found, any match is
searched for in every enabled category (whether it involves cascading, going to base classes,
...). categories are searched into the order in which they were enabled (the most recently
enabled category first, then the second most and so on..)
- by default, most commands that deal with summaries, use a category named "default" if no
explicit -w parameter is given (the observable behavior of LLDB should not change when
categories are not explicitly used)
- the systemwide summaries are now part of a "system" category
llvm-svn: 135463
method so process plug-ins that are requested by name can answer yes when
asked if they can debug a target that might not have any file in the target.
Modified the ConnectionFileDescriptor to have both a read and a write file
descriptor. This allows us to support UDP, and eventually will allow us to
support pipes. The ConnectionFileDescriptor class also has a file descriptor
type for each of the read and write file decriptors so we can use the correct
read/recv/recvfrom call when reading, or write/send/sendto for writing.
Finished up an initial implementation of UDP where you can use the "udp://"
URL to specify a host and port to connect to:
(lldb) process connect --plugin kdp-remote udp://host:41139
This will cause a ConnectionFileDescriptor to be created that can send UDP
packets to "host:41139", and it will also bind to a localhost port that can
be given out to receive the connectionless UDP reply.
Added the ability to get to the IPv4/IPv6 socket port number from a
ConnectionFileDescriptor instance if either file descriptor is a socket.
The ProcessKDP can now successfully connect to a remote kernel and detach
using the above "processs connect" command!!! So far we have the following
packets working:
KDP_CONNECT
KDP_DISCONNECT
KDP_HOSTINFO
KDP_VERSION
KDP_REATTACH
Now that the packets are working, adding new packets will go very quickly.
llvm-svn: 135363
Implemented connect, disconnect, reattach, version, and hostinfo.
Modified the ConnectionFileDescriptor class to be able to handle UDP.
Added a new Stream subclass called StreamBuffer that is backed by a
llvm::SmallVector for better efficiency.
Modified the DataExtractor class to have a static function that can
dump hex bytes into a stream. This is currently being used to dump incoming
binary packet data in the KDP plug-in.
llvm-svn: 135338
- help type summary add now gives some hints on how to use it
frame variable and target variable now have a --no-summary-depth (-Y) option:
- simply using -Y without an argument will skip one level of summaries, i.e.
your aggregate types will expand their children and display no summary, even
if they have one. children will behave normally
- using -Y<int>, as in -Y4, -Y7, ..., will skip as many levels of summaries as
given by the <int> parameter (obviously, -Y and -Y1 are the same thing). children
beneath the given depth level will behave normally
-Y0 is the same as omitting the --no-summary-depth parameter entirely
This option replaces the defined-but-unimplemented --no-summary
llvm-svn: 135336
- Summaries for char*, const char* and char[] are loaded at startup as
system-wide summaries. This means you cannot delete them unless you use
the -a option to type summary delete/clear
- You can add your own system-wide summaries by using the -w option to type
summary add
Several code improvements for the Python summaries feature
llvm-svn: 135326
same as the old "connect://<host>:<port>". Also added the ability to
connect using "udp://<host>:<port>" which will open a connected
datagram socket. I need to find a way to specify a non connected
datagram socket as well.
We might need to start setting some settings in the URL itself,
maybe something like:
udp://<host>:<port>?connected=yes
udp://<host>:<port>?connected=no
I am open to suggestions for URL settings.
Also did more work on the KDP darwin kernel plug-in.
llvm-svn: 135277
- you can use a Python script to write a summary string for data-types, in one of
three ways:
-P option and typing the script a line at a time
-s option and passing a one-line Python script
-F option and passing the name of a Python function
these options all work for the "type summary add" command
your Python code (if provided through -P or -s) is wrapped in a function
that accepts two parameters: valobj (a ValueObject) and dict (an LLDB
internal dictionary object). if you use -F and give a function name,
you're expected to define the function on your own and with the right
prototype. your function, however defined, must return a Python string
- test case for the Python summary feature
- a few quirks:
Python summaries cannot have names, and cannot use regex as type names
both issues will be fixed ASAP
major redesign of type summary code:
- type summary working with strings and type summary working with Python code
are two classes, with a common base class SummaryFormat
- SummaryFormat classes now are able to actively format objects rather than
just aggregating data
- cleaner code to print descriptions for summaries
the public API now exports a method to easily navigate a ValueObject hierarchy
New InputReaderEZ and PriorityPointerPair classes
Several minor fixes and improvements
llvm-svn: 135238
- formats %s %char[] %c and %a now work to print 0-terminated c-strings if they are applied to a char* or char[] even without the [] operator (e.g. ${var%s})
- array formats (char[], intN[], ..) now work when applied to an array of a scalar type even without the [] operator (e.g. ${var%int32_t[]})
LLDB will not crash because of endless loop when trying to obtain a summary for an object that has no value and references itself in its summary string
In many cases, a wrong summary string will now display an "<error>" message instead of giving out an empty string
llvm-svn: 135007
- a new --name option for "type summary add" lets you give a name to a summary
- a new --summary option for "frame variable" lets you bind a named summary to one or more variables
${var%s} now works for printing the value of 0-terminated CStrings
type format test case now tests for cascading
- this is disabled on GCC because GCC may end up stripping typedef chains, basically breaking cascading
new design for the FormatNavigator class
new template class CleanUp2 meant to support cleanup routines with 1 additional parameter beyond resource handle
llvm-svn: 134943
with the "target modules lookup --address <addr>" command. The variable
ID's, names, types, location for the address, and declaration is
displayed.
This can really help with crash logs since we get, on MacOSX at least,
the registers for the thread that crashed so it is often possible to
figure out some of the variable contents.
llvm-svn: 134886
use lldb_private::Target::ReadMemory(...) to allow constant strings
to be displayed in global variables prior on in between process
execution.
Centralized the variable declaration dumping into:
bool
Variable::DumpDeclaration (Stream *s, bool show_fullpaths, bool show_module);
Fixed an issue if you used "target variable --regex <regex>" where the
variable name would not be displayed, but the regular expression would.
Fixed an issue when viewing global variables through "target variable"
might not display correctly when doing DWARF in object files.
llvm-svn: 134878
Made it so that you can create synthetic children of array
value objects. This is for creating array members when the
array index is out of range. This comes in handy when you have
a structure definition like:
struct Collection
{
uint32_t count;
Item array[0];
};
"array" has 1 item, but many times in practice there are more
items in "item_array".
This allows you to do:
(lldb) target variable g_collection.array[3]
To implement this, the get child at index has been modified
to have a "ignore_array_bounds" boolean that can be set to true.
llvm-svn: 134846
new GetValueForExpressionPath() method in ValueObject to navigate expression paths in a more bitfield vs slices aware way
changes to the varformats.html document (WIP)
llvm-svn: 134679
variables prior to running your binary. Zero filled sections now get
section data correctly filled with zeroes when Target::ReadMemory
reads from the object file section data.
Added new option groups and option values for file lists. I still need
to hook up all of the options to "target variable" to allow more complete
introspection by file and shlib.
Added the ability for ValueObjectVariable objects to be created with
only the target as the execution context. This allows them to be read
from the object files through Target::ReadMemory(...).
Added a "virtual Module * GetModule()" function to the ValueObject
class. By default it will look to the parent variable object and
return its module. The module is needed when we have global variables
that have file addresses (virtual addresses that are specific to
module object files) and in turn allows global variables to be displayed
prior to running.
Removed all of the unused proxy object support that bit rotted in
lldb_private::Value.
Replaced a lot of places that used "FileSpec::Compare (lhs, rhs) == 0" code
with the more efficient "FileSpec::Equal (lhs, rhs)".
Improved logging in GDB remote plug-in.
llvm-svn: 134579
would return instead of a less than helpful "name: '%s'" description.
Make sure that when we ask for the error from a ValueObject object we
first update the value if needed.
Cleaned up some SB functions to use internal functions and not re-call
through the public API when possible.
llvm-svn: 134497
instructions if they are conditional. Also fixed issues where the PC wasn't
getting bit zero stripped for ARM targets when a stack frame was thumb. We
now properly call through the GetOpcodeLoadAddress() functions to make sure
the addresses are properly stripped for any targets that may decorate up
their addresses.
We now don't pass the SIGSTOP signals along. We can revisit this soon, but
currently this was interfering with debugging some older ARM targets that
don't have vCont support in the GDB server.
llvm-svn: 134461
- ${*expr} now simply means to dereference expr before actually using it
- bitfields, array ranges and pointer ranges now work in a (hopefully) more natural and language-compliant way
a new class TypeHierarchyNavigator replicates the behavior of the FormatManager in going through type hierarchies
when one-lining summary strings, children's summaries can be used as well as values
llvm-svn: 134458
a file or socket. We now make a getsockopt call to check if the fd is a socket.
Also, the previous logic in the GDB communication needs to watch for success
with an error so we can deal with EAGAIN and other normal "retry" error codes.
llvm-svn: 134359
- type names can now be regular expressions (exact matching is done first, and is faster)
- integral (and floating) types can be printed as bitfields, i.e. ${var[low-high]} will extract bits low thru high of the value and print them
- array subscripts are supported, both for arrays and for pointers. the syntax is ${*var[low-high]}, or ${*var[]} to print the whole array (the latter only works for statically sized arrays)
- summary is now printed by default when a summary string references a variable. if that variable's type has no summary, value is printed instead. to force value, you can use %V as a format specifier
- basic support for ObjectiveC:
- ObjectiveC inheritance chains are now walked through
- %@ can be specified as a summary format, to print the ObjectiveC runtime description for an object
- some bug fixes
llvm-svn: 134293
"struct ", "class ", and "union " from the start of any type names that are
extracted from clang QualType objects. I had to fix test suite cases that
were expecting the struct/union/class prefix to be there.
llvm-svn: 134132
implements three commands:
type summary add <format> <typename1> [<typename2> ...]
type summary delete <typename1> [<typename2> ...]
type summary list [<typename1> [<typename2>] ...]
type summary clear
This allows you to specify the default format that will be used to display
summaries for variables, shown when you use "frame variable" or "expression", or the SBValue classes.
Examples:
type summary add "x = ${var.x}" Point
type summary list
type summary add --one-liner SimpleType
llvm-svn: 134108
level in the public API.
Also modified the ValueObject values to be able to display global variables
without having a valid running process. The globals will read themselves from
the object file section data if there is no process, and from the process if
there is one.
Also fixed an issue where modifications for dynamic types could cause child
values of ValueObjects to not show up if the value was unable to evaluate
itself (children of NULL pointer objects).
llvm-svn: 134102
two:
eOptionMarkPCSourceLine = (1u << 2), // Mark the source line that contains the current PC (mixed mode only)
eOptionMarkPCAddress = (1u << 3) // Mark the disassembly line the contains the PC
This allows mixed mode to show the line that contains the current PC, and it
allows us to mark the PC address in the disassembly if desired. Having these
be separate gives more control on the disassembly output. SBFrame::Disassemble()
doesn't enable any of these options.
llvm-svn: 134019
the FormatManager class. Modified the format arguments in any commands to be
able to use a single character format, or a full format name, or a partial
format name if no full format names match.
Modified any code that was displaying formats to use the new FormatManager
calls so that our help text and errors never get out of date.
Modified the display of the "type format list" command to be a bit more
human readable by showing the format as a format string rather than the single
character format char.
llvm-svn: 133765
Added a fix for where you might have already displayed something with a given
type, then did a "type format add ...", then you display the type again. This
patch will figure out that the format changed and allow us to display the
type with the correct new format.
llvm-svn: 133743
This commit adds a new top level command named "type". Currently this command
implements three commands:
type format add <format> <typename1> [<typename2> ...]
type format delete <typename1> [<typename2> ...]
type format list [<typename1> [<typename2>] ...]
This allows you to specify the default format that will be used to display
types when you use "frame variable" or "expression", or the SBValue classes.
Examples:
// Format uint*_t as hex
type format add x uint16_t uint32_t uint64_t
// Format intptr_t as a pointer
type format add p intptr_t
The format characters are the same as "printf" for the most part with many
additions. These format character specifiers are also used in many other
commands ("frame variable" for one). The current list of format characters
include:
a - char buffer
b - binary
B - boolean
c - char
C - printable char
d - signed decimal
e - float
f - float
g - float
i - signed decimal
I - complex integer
o - octal
O - OSType
p - pointer
s - c-string
u - unsigned decimal
x - hex
X - complex float
y - bytes
Y - bytes with ASCII
llvm-svn: 133728
This us useful because sometomes you have to show a single character as: 'a'
(using eFormatChar) and other times you might have an array of single
charcters for display as: 'a' 'b' 'c', and other times you might want to
show the contents of buffer of characters that can contain non printable
chars: "\0\x22\n123".
This also fixes an issue that currently happens when you have a single character
C string (const char *a = "a"; or char b[1] = { 'b' };) that was being output
as "'a'" incorrectly due to the way the eFormatChar format output worked.
llvm-svn: 133316
darwin (not sure about other platforms).
Modified the communication and connection classes to not require the
BytesAvailable function. Now the "Read(...)" function has a timeout in
microseconds.
Fixed a lot of assertions that were firing off in certain cases and replaced
them with error output and code that can deal with the assertion case.
llvm-svn: 133224
Enrico Granata