mirror of
https://github.com/radareorg/radare2.git
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82 lines
2.5 KiB
Plaintext
82 lines
2.5 KiB
Plaintext
Decompiler for radare2 trackline
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================================
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Objectives
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==========
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- Name local variables argments and global vars (Cv ...)
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- Common construct detection (if/switch/for/while/do)
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- Enum detection/support (load from .h ?) #define /enum parse only
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- Detect sign of variables (depending on the conditionals used)
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- Change operations to ease reading ('\n' instead of 0xa.. sub<->add)
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- Detect and propagate variable types
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- Symbol recognition
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Core (RAnal, RMeta, RBin, ...)
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==============================
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* Language: C
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* Analyze opcodes
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* Detect numeric sign
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* Detect data type and size by analyzing the accesses
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* Analyze conditionals (if () goto .., labels, ...)
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* Support push+ret constructions
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* Analyze function calls (fast/slowcall, parameters, data types, return values..)
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* Define data types (as 'pm' structs (memory format string))
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* Analyze common constructions
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Plugin (Radare.Decompiler class)
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================================
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* Language: Vala
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* Using visitor paradigm
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* Bidirectional sync methods for core
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- Caches data and code from the core
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- Comments must be syncronized too
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* Independent structure compared to core
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* Optimize sequences of opcodes
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* Optimize AST (remove unaccessible code, join nodes, ...)
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* Polimorph operations to simplify reading (shl eax, 1 => eax *= 2)
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* Remove stack-related operations
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* Resolve and propagate data types
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* Parse .h files in order to import function signatures, defines, enums, ..
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* Support to decompile single function or full program
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* Each node must have a to_string() method to serialize
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* Indent resulting code
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* Remove trash code
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UI (Gtk+)
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=========
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* Language: Vala
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* Implemented as a Gtk.Widget
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* Walk along the decompiled program code
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- change variable names (read/write value)
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- go xrefs
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Future
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======
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* Floating point support
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* Support high-level language constructions (objective-C, gobject, c++, ...)
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External linkz
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==============
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* http://www.pivotaltracker.com/
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-------------8<-------------------------------------------- -- - - - - -
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+-------------------+
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| Plugin API design |
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+-------------------+
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public class RadareDecompiler.AST { }
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public class RadareDecompiler.Node { }
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public class RadareDecompiler.Function { }
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public class RadareDecompiler.Variable { }
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public class RadareDecompiler.Constant { }
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public class RadareDecompiler.Conditional { }
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public class RadareDecompiler.Enum { }
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public class Radare.Decompiler {
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public class Decompiler(RCore core) {
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...
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}
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public void sync(bool write) { ... }
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}
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