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IDA: What's new in 6.8

Highlights

This is mainly a maintenance release, so our focus was on fixing bugs. However, there are some improvements too:
  • Support for long names. In previous versions of IDA names were limited to 511 bytes. This was causing problems, especially with long mangled C++ names (e.g. boost names). We removed this limitation in many places of IDA. The work is not complete, there are still some areas where the limitation exists but overall the listings are more readable now.
  • Dalvik: added support for OAT files
  • PPC: support for Power ISA 2.07
  • Better analysis of prolog code; better register tracking, especially for ARM
  • Lots of vulnerabilities fixed thanks to the submissions to our bug bounty program

Complete changelist

  • Processor Modules
    • ARM: Better tracking of registers, improved analysis
    • ARM: added support for scattered arguments (that are partially passed on the stack and partially in registers)
    • PC: improved prolog analysis
    • PPC: added support for a switch variation produced by the Green Hills compiler
    • PPC: support for Power ISA 2.07
  • File Formats
    • COFF: added support for irix mips files (no support for relocations yet)
    • Dalvik: added support for OAT files
    • DWARF: basic support for clang-generated DWARF variable location
    • DWARF: very basic support for 'rustc'-produced DWARF information
  • Debugger
    • PIN: add support for reading of FPU/XMM registers from internal exception tracing: can display addresses as raw, instead of using seg/func/offset representation
  • Kernel/Misc
    • kernel: introduced the notion of ASM and C level types; IDA tries to preserve member offsets only for ASM types; C types may change their sizes because of the changes to other types they depend on
    • kernel: added support for long names: type, function, label, etc names can be up to 32767 bytes long
    • demangler: improved to recognize new mangled names
    • til: added type library for Windows 8.1 (user mode)
    • til: updated windows til files improved automatic recognition of ascii string by the autoanalyzer
  • User Interface
    • UI: idaq dock menu on mac now features a list of recent files
    • UI/qt: It is now possible to navigate back & forward in location history with the mouse side navigation buttons (for mice that feature those) in graph & proximity view as well (it was already possible in listing view)
    • UI: display a warning if the user rebases program around 0xFF000000 (it may cause problems because these addresses are used for internal housekeeping)
    • UI: graph: Ctrl-Keypad-+ and Ctrl-Keypad-- can now be used to quickly collapse/reveal a node's contents
    • UI: GraphOverview: can optionally use a blank background (just like before 6.7)
    • UI: Proximity: added ability to have multiple paths, set their color, turn them on/off and delete them
  • Scripts & SDK
    • IDC: added ExpandStruc()
    • IDC: improved SetLocalType: it accepts typeinfo object as the second argument in addition to declaration strings; added PT_REPLACE so that local types can be replaced
    • IDAPython: allow accessing a til_t's "base" til_t objects
    • IDAPython: in addition to AskUsingForm (that opens a dialog), it is now possible to call OpenForm (e.g., to open a form as a tab.)
    • IDAPython: added ExpandStruc()
    • IDAPython: USE_LOCAL_PYTHON config parameter is deprecated, IDA autodetects local Python installation now
    • SDK: added "segm_attrs_changed" event so that plugins can take appropriate actions if necessary
    • SDK: added print_decls(), allowing to print types from a type library (possibly including dependencies) in a format suitable for C(++) compilation
    • SDK: added support for default register bits of 64-bit debugger registers
    • SDK: added tinfo_t::clr_const,clr_volatile,clr_const_volatile functions
    • SDK: made the return codes of ph.notify() callbacks more plugin-friendly
    • SDK: netnode names can be of arbitrary length. for practical reason we limit them by 32KB
    • SDK: qstrncpy and similar functions will raise interr if the size argument is 0 or negative
    • SDK: replaced get_true_name() and similar functions by get_ea_name(), which accepts qstring as the output buffer; this allows for names of unlimited length, if necessary
    • SDK: segment names and classes use a separate namespace now and do not hinder functions or data labels with the same name
    • SDK: tinfo_t::get_unpadded_size() now works not only for c++ objects but for all structs
    • SDK: ui: forms: Added askqstr() - the kind of askstr() but with qstring argument
    • SDK: ui: new chooser_item_attrs_t::flags flag CHITEM_GRAY is added to show chooser item grayed out (like disabled). It is now used for the Local types choser to distinct guest types (syncronized from structure/enum views)
  • BUGFIXES
    • BUGFIX: '-' was forbidden in type names but it can be encountered in template arguments
    • BUGFIX: ARM: A reference to SP (R13) in the register list of the LDMDB instruction (and similar ones) was not allowed by IDA, while some ARM devices can apparently execute it
    • BUGFIX: COFF: specially crafted COFF files could trigger invalid memory writes on OS X
    • BUGFIX: Calling refresh_chooser() on a chooser that's embedded in an AskUsingForm might fail calling the possible form callback with a possibly-updated rows selection
    • BUGFIX: Cmd+C was broken on OSX, and copying was only possible through Ctrl+C
    • BUGFIX: Creating 2 GraphRenderer with the same title could crash IDA
    • BUGFIX: Deprecated function add_menu_item() would place the item at the end of the menu if the path was of the form "Edit/Other/" (i.e., ending with an empty string), while it used to place the action on top before
    • BUGFIX: Deprecated function add_menu_item() wouldn't accept '-' as a separator anymore; only expecting '' (i.e., empty string) was allowed for separators
    • BUGFIX: Double-clicking on a thread in the list would jump to the wrong thread, if the list was sorted by a column
    • BUGFIX: During debugging, clicking on some strings containing format specifiers could cause IDA to display the wrong data
    • BUGFIX: Exporting structures to IDC could lose type information for their members
    • BUGFIX: File save dialog could have an empty/undefined file name on OSX (Issue 1232)
    • BUGFIX: Force switching to graph view on functions with huge number of nodes, might cause IDA to crash
    • BUGFIX: Global variable database_idb was not reset to the empty string after a database was closed
    • BUGFIX: Hex-View widgets had lost the ability to allow direct editing of the text in their rightmost area (since IDA 6.4)
    • BUGFIX: IDA could hang after not adequately handling a segment register change
    • BUGFIX: IDA could hang trying to coagulate unknown bytes within a code segment
    • BUGFIX: IDA could sometimes print garbage after cross references between structs
    • BUGFIX: IDA had no way to reset the background color of proximity view nodes that were highlighted by the 'Find path' action
    • BUGFIX: IDA was displaying split Unicode strings for big-endian processors incorrectly
    • BUGFIX: IDA would incorrectly report a circular dependency when trying to export a type containing a deleted type
    • BUGFIX: IDA would try to generate disassembly text for nodes that are unreasonably large
    • BUGFIX: IDAPython Hex-Rays bindings: could crash IDA because access to members of unions, while they didn't make sense, were allowed (and thus SWiG created buggy proxies around invalid pointers.)
    • BUGFIX: IDAPython was not exposing tinfo_t::get_named_type(), because SWiG rules in typeinf.i were too broad
    • BUGFIX: IDAPython's IDC-style ApplyType() wasn't working for structure members
    • BUGFIX: IDAPython: GetSegmentAttr/SetSegmentAttr would fail with segment registers
    • BUGFIX: IDAPython: Only the first 'long name' of python-based processor modules was considered
    • BUGFIX: IDAPython: build.py didn't trigger the patching of some directors methods calling convention, resulting in compilation failure with flag "--with-hexrays"
    • BUGFIX: IDAPython: expose ::get_named_type()
    • BUGFIX: IDAPython: idautils.DecodePreviousInstruction() was not checking for the right value returned from idaapi.decode_prev_insn()
    • BUGFIX: In IDAPython, re-using the same action description twice when registering dynamic context menu items could lead to a crash
    • BUGFIX: In some rare cases, IDA could crash when closing down & force-exiting a debugging session
    • BUGFIX: Installers couldn't be run in unattended mode, because the 'setEncryptionPassword' directive was specified in a '', which is not executed in unattended mode
    • BUGFIX: It was impossible to comment function stack variables in "Stack of " windows
    • BUGFIX: It was impossible to rename structure fields from IDA View-A anymore
    • BUGFIX: It was possible, through process_ui_action(), to invoke the code for an action that was disabled
    • BUGFIX: Mach-O DWARF source-level debugging could fail to find the source file
    • BUGFIX: Mach-O source-level debugging DWARF could fail finding shared libraries source files because it would miss some items (it wasn't taking ASLR into account)
    • BUGFIX: Manually loading a PE overlay could cause previous segments to be stretched, which would then conflict with later segments being loaded
    • BUGFIX: Not Free()ing a Compile()d idaapi.Form could cause IDA to crash at exit-time
    • BUGFIX: On OSX, opening the "About" dialog, then the "Addons" dialog, then closing the "Addons" and performing Ctrl+C could crash IDA
    • BUGFIX: PDB could fail on meaningless array descriptions, when those are packed into structures
    • BUGFIX: PDB was not properly parsing unnamed types of the form "SOME_NAMED_THING::__unnamed"
    • BUGFIX: PDB: improved responsivity of IDA while it's loading PDB information
    • BUGFIX: PIN: IDA could report incorrect address in an exception description
    • BUGFIX: PIN: pintool could crash when running with disabled ST_OVER... trace options
    • BUGFIX: PIN: pintool could report incorrect register values in case of internal exception
    • BUGFIX: Program rebasing could produce incorrect name records in the database
    • BUGFIX: Rebasing the program would lead to erroneous addresses in the "Imports" window, until that window is closed & re-opened
    • BUGFIX: Reloading some PE files could lead to an internal error
    • BUGFIX: Retina: When zooming in/out of the graph view, nodes contents could appear smaller
    • BUGFIX: Right-clicking on an identifier in a node wouldn't set the cursor position to that identifier before opening the context menu, resulting on context menu items irrelevant for the wanted identifier
    • BUGFIX: Saving the IDB would cause the history to be modified
    • BUGFIX: Selecting a node that is overlapping another node, and Ctrl+dragging (for selecting) from another node was sometimes producing an interr
    • BUGFIX: Selecting by rectangle in graph view was displaying the rectangle at its position * 2 on OSX retina displays
    • BUGFIX: Setting a widget's icon wouldn't be reflected in the UI
    • BUGFIX: Setting function prototypes to similar-looking prototypes, but whose arguments come from other type info libraries, could cause IDA to interr 1064
    • BUGFIX: Specifying an erroneous binary path mapping & then correcting it, could cause IDA to keep requesting for mappings
    • BUGFIX: When calling 'attach_action_to_menu' with a menu path starting with "Edit" from the "Recent scripts" window, the action could end up in the 'Recent scripts's own Edit menu, instead of in the global one
    • BUGFIX: When changing a variable/argument type in a function frame, 'Structures' xrefs might not be updated
    • BUGFIX: When debugging with WinDbg, stepping over some instructions that cause debugging events (e.g., a "call CreateProcess", causing library load events) might fail & let the program run freely
    • BUGFIX: When debugging, performing unaligned read_dbg_memory() on linux targets could return wrong data (and so could DbgRead() and idaapi.dbg_read_memory())
    • BUGFIX: When debugging, synchronizing a Hex View with a register, then later syncing with another register would lead the view to be synced with both registers
    • BUGFIX: When importing structures from an IDC strict, some dependencies were missing (if those dependencies were defined later in the file.)
    • BUGFIX: When in graph view, IDA had lost the ability to create groups with only one node (as some users sometimes desire.)
    • BUGFIX: When in graph view, pressing to follow an identifier that will cause the view to switch to listing view, then opening a dialog (e.g., renaming that identifier), and finally going back to graph view, could cause some actions to be unavailable (e.g., 'Hide group'.)
    • BUGFIX: When the DWARF information for "well-known types" (e.g., __m128d) was erroneous, the DWARF plugin was creating erroneously-sized structures, causing the decompiler to fail
    • BUGFIX: When the graph layout is locked, clicking within nodes of user-provided graphs wouldn't change the cursor & update the highlight
    • BUGFIX: add_menu_item() backward compatibility was broken when the path didn't contain any slash. E.g., "Options"
    • BUGFIX: an expression like sizeof(struct) was creating an xref to the first struct member; changed it to create an xref to the entire structure
    • BUGFIX: autoanalysis could hang on some wrong code sequences or corrupted files
    • BUGFIX: better distinction between the code/data conversions done automatically by ida and by the user
    • BUGFIX: btree: IDA could abort in rare cases when removing a subtree from a database
    • BUGFIX: cli: IDA could crash trying to print strings coming from very corrupted (i.e., fuzzed) input files with corrupted signatures
    • BUGFIX: compacting a type library in the presence of aliased types could lead to interr
    • BUGFIX: corrupted codeview info could crash ida
    • BUGFIX: corrupted epoc files could crash ida
    • BUGFIX: corrupted xcoff files could crash ida
    • BUGFIX: corrupted database (idb/i64) could lead to memory corruption
    • BUGFIX: dalvik: added "green arrow", which points to the next executed instruction in the debugger
    • BUGFIX: dbg: dalvik: slot coinciding with "retval" was erroneously ignored when the locals are collected
    • BUGFIX: dbg: gdbserver: reinitialize the registers information when the target architecture is detected
    • BUGFIX: dbg: linux_server: signals from the different threads may arise simultaneously without special order, so in the interr 30057 we must weaken the condition
    • BUGFIX: dbg_read_memory()/DbgRead() could return garbage data for unmapped regions
    • BUGFIX: debugger: request_step_into() could cause interr 40396
    • BUGFIX: debugging with gdbserver was impossible for mips executables starting at 0x80000000
    • BUGFIX: defining the same standard structure twice could lead to a crash
    • BUGFIX: deleting structures could break navigation in the structures window
    • BUGFIX: dump typeinfo to idc: in some cases EndTypeUpdating(UTP_ENUM) was missing in the generated file
    • BUGFIX: dumy typeinfo to idc: structures alignments were missing
    • BUGFIX: editing a enum type from the local types view to a wrong definition (for example, reusing a symbol that was used elsewhere) would lead to desynchronization with the enum view; fixed other similar problems
    • BUGFIX: editing a local type would desynchronize it from idb types
    • BUGFIX: export types: anoonymous nested struct/union types were referred by a generated name; this was leading to an incorrect c declaration
    • BUGFIX: fixed internal error in the instruction decoder for mips (opcode 78787878 was causing it)
    • BUGFIX: fixed interr 40208 that could occur when terminating the debugger
    • BUGFIX: fixed interr 518
    • BUGFIX: fixed interr 599 (the value of a 6-byte pointer could not be printed as a c declaration)
    • BUGFIX: fixed interr 608
    • BUGFIX: fixed multiple vulnerabilities in the rpc protocol between ida and debuggser servers
    • BUGFIX: fixed some idc nuisances reported on the forum
    • BUGFIX: gdbserver: disabling single-step support could render the debugger module unusable, ida would complain about wrong RESMOD bits
    • BUGFIX: ida could crash after calling StartProcess("","","") from the python command line while using a remote GDB debugger
    • BUGFIX: ida could crash during analysis
    • BUGFIX: ida could crash or hang on corrupted cli files
    • BUGFIX: ida could crash when stopping the debugger
    • BUGFIX: ida could crash while analyzing a file (if a function tail was deleted during enumerating function tails)
    • BUGFIX: ida could crash with stack overflow while analyzing borland template data
    • BUGFIX: ida could hang trying to load a corrupted pe file
    • BUGFIX: ida could hang trying to load corrupted aout file
    • BUGFIX: ida could hang when analyzing some files
    • BUGFIX: ida could interr when compacting a type library
    • BUGFIX: ida would hang trying to display huge (>2GB) arrays
    • BUGFIX: ida64 would interr trying to calculate arglocs for some functions
    • BUGFIX: idapython: fixed idx.savefile. Previous implementation has failed to open new file
    • BUGFIX: idaw would not accept non-ascii file names from the command line
    • BUGFIX: if an address was marked as 'notcode', it would lead to odd situation when the user would define an instruction but ida would immediately delete it
    • BUGFIX: if idb was saved before any planned signatures had been applied, autoIsOk would never return true
    • BUGFIX: if sending a bug report failed, ida would simply tell the user about it; now we show the dialog box once more so that the user can copy the bug report out of ida
    • BUGFIX: if the last thing we do before saving the idb to the disk is to define a big item that uses both STT_VA and STT_MM storage methods, the sparse flags would not be saved correctly to the disk (they would not be marked as dirty)
    • BUGFIX: if the struct indexes got corrupted, some of struct types were permanently missing from the list
    • BUGFIX: importing a struct type from the local types window to the struct view could crash ida
    • BUGFIX: instant debugging: gdb module was not configuring its registers correctly if the target processor was changed at the last moment
    • BUGFIX: mac_server would make one processor core 100% busy after debugging an application
    • BUGFIX: mc16c: ida could crash trying to display an bad instruction
    • BUGFIX: parsing of argument locations in a register with an offset was broken (e.g. rdx^4.2)
    • BUGFIX: pe: ida could complain about truncated input file in some rare cases
    • BUGFIX: pe: ida could hang trying to load a corrupted file
    • BUGFIX: pe: replaced interr 20064 with a silent failure because it may occur on corrupted input files
    • BUGFIX: pe: validation of the number of exported addresses was wrong
    • BUGFIX: ppc: dquai and dquaiq instructions could not be decoded
    • BUGFIX: read-access hardware breakpoints on win64 were broken
    • BUGFIX: setting a new target compiler must lead to recalculation of argument locations (especially for x64 where gcc and ms behave differently)
    • BUGFIX: some type names were displayed as #N (where N is the type number)
    • BUGFIX: symbol addresses in 32-bit map files were relative to the segment start, not to the segment base (pe files were not affected by this bug)
    • BUGFIX: the struct/enum views were not automatically refreshed after idc/python scripts that modify them
    • BUGFIX: tilib was not accepting enum redefinitions if a constant with the high bit set was present (for example, 0x80000000)
    • BUGFIX: tinfo validation could erroneously fail for aliased types
    • BUGFIX: tls callbacks in pe+ files were handled incorrectly
    • BUGFIX: tms320c6: some insns were disassembled incorrectly or not at all
    • BUGFIX: type validation was too strict: an internal type alias may differ from its target in the type modifiers (const/volatile). they are one of the reasons why we have internal aliases after all
    • BUGFIX: types entered by the user were not lowered; it is safer to try to lower them in order to get rid of arrays as function arguments, for example
    • BUGFIX: ui: docks: Prevented creation of empty areas
    • BUGFIX: ui: qt: Fixed disappearing of persistent dock if "Float" button in the dock header is clicked
    • BUGFIX: when debugging, double-clicking on an address in the stack view wouldn't jump anymore
    • BUGFIX: when exporting types, ida could fail to define a structure that was previously used in a typedef
    • BUGFIX: xrefs to the structure members would disappear after renaming a structure/enum or other manipulations with it
    • BUGFIX: IDA would fail to delete the last history item from the QuickStart dialog.
    • BUGFIX: IDAPython Choose2 instances that were self.Close()ing as a part of an OnCommand() callback could crash IDA.
    • BUGFIX: IDAPython Choose2-based choosers could not be notified of selection changes (through their 'OnSelectionChange' callback.)
    • BUGFIX: IDAPython calling 'term_database' could leave some windows opened that still need a database, leading to a crash.
    • BUGFIX: Painting widgets from PySide in IDAPython could cause IDA to crash.
    • BUGFIX: When toggling (with ) between Hex-Rays & IDA View-A, hex-rays could cause IDA View-A to move the cursor.
    • BUGFIX: clicking on opcode bytes AF, CF and DF would result in no highlighting whatsoever.
    • BUGFIX: fixed interr 40208 which could occur if the network connection to the remote debugger was broken
    • BUGFIX: interr 820 could occur when loading dwarf debug info
    • BUGFIX: pc: register tracking was leading to wrong results in omf files
    • BUGFIX: pc: some instructions were erroneously marked as belonging to the function epilog; this would lead to wrong decompilation
    • BUGFIX: read-only page breakpoints would be missed if added into an executable page

Application Details:

Version: 6.8
License: Retail
URL: http://www.hex-rays.com/idapro...
Votes: 0
Latest Rating: Platinum
Latest Wine Version Tested: 1.7.55

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Test Results

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Selected Test Results

What works

All features

What does not

N/A

Workarounds

What was not tested

N/A

Hardware tested

Graphics:

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  • Driver:

Additional Comments

selected in Test Results table below
Operating systemTest dateWine versionInstalls?Runs?Used
Workaround?
RatingSubmitter
CurrentFedora 23 x86_64Dec 13 20151.7.55Yes Yes Platinuman anonymous user 

Known Bugs

Bug # Description Status Resolution Other apps affected

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HowTo / Notes

Text is cut off/garbled in the disassembly view

Use winetricks work around the font display problem:

$ wget http://winetricks.googlecode.com/svn/trunk/src/winetricks

­

$ bash winetricks corefonts
Keyboard layout error: Failed to get the scan code

If you get a message box on startup, stating:

­­"Keyboard layout error: Failed to get the scan code of '~' (VkKeySca­n failure)"

Either check the box "don't display that message again" or go to the following directory:

­$ cd /home/.wine/c_drive/Program Files/IDA/cfg

Then open the file "idagui.cfg" with a text editor, and locate the line containing the following:

"BitwiseNegate" = '~'

and comment it out:

//"BitwiseNegate" = '~'

save and restart.

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