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Ran-j
84 lines
2.6 KiB
Markdown
84 lines
2.6 KiB
Markdown
# PS2 ELF Analyzer Tool
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The PS2 ELF Analyzer Tool helps automate the process of creating TOML configuration files for the PS2Recomp static recompiler. It analyzes PlayStation 2 ELF files and generates a recommended configuration based on the binary's characteristics.
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## Key Features
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* Analyzes PS2 ELF binaries to extract symbols, functions, and structure
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* Identifies common library functions that should be stubbed
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* Flags system functions that should be skipped during recompilation
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* Detects potential instruction patterns that may need patching
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* Generates a ready-to-use TOML configuration file for PS2Recomp
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## Using the Analyzer
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```bash
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ps2_analyzer <input_elf> <output_toml>
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```
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### Where:
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* `input_elf` is the path to the PS2 ELF file you want to analyze
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* `output_toml` is the path where the generated TOML configuration will be saved
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## Example:
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```bash
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ps2_analyzer path/to/your/ps2_game.elf config.toml
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```
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## How It Works
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The analyzer performs the following steps:
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* Parses the ELF file using the same ElfParser used by PS2Recomp
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* Extracts functions, symbols, sections, and relocations
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* Analyzes the entry point to understand initialization patterns
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* Identifies library functions by name patterns and signatures
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* Maps the call graph to understand relationships between functions
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* Analyzes data usage patterns (basic implementation)
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* Scans for problematic instructions that might need patching
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* Generates a TOML configuration file with all findings
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## Generated Configuration
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The tool creates a TOML file with the following sections:
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```toml
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[general]
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input = "path/to/your/ps2_game.elf"
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output = "output/"
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single_file_output = false
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runtime_header = "include/ps2_runtime.h"
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stubs = [
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# List of identified library functions to stub
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"printf",
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"malloc",
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# ...
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]
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skip = [
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# List of system functions to skip
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"entry",
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"_start",
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# ...
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]
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[patches]
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instructions = [
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# Potential instruction patches
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{ address = "0x100008", value = "0x00000000" },
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# ...
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]
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```
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## Extending the Analyzer
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The analyzer is designed to be extensible. You can enhance its capabilities by:
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* Adding more library function patterns in initializeLibraryFunctions()
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* Improving the call graph analysis in analyzeCallGraph()
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* Enhancing data usage pattern detection in analyzeDataUsage()
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* Refining patch detection logic in identifyPotentialPatches()
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## Limitations
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* The analyzer uses basic heuristics and may not catch all special cases
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* Function identification relies heavily on symbol names
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* Patch recommendations are preliminary and may need manual review
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* Complex game-specific behaviors may not be detected |