# Shannon Modem Loader for IDA Pro

> IDA Pro loader and post-processing scripts for Samsung Exynos "Shannon" baseband modem images that carry a TOC header, including crash dumps. The loader maps the TOC entries to aligned segments and entry points; after auto-analysis the post-processor restores debug-trace structures, names functions from strings and debug-log calls, rebuilds the MPU table and memory map, comments MMU-related coprocessor instructions, performs the ARM scatter-load with its decompression, and labels platform-abstraction-layer and task-initialization functions. The README adds the author's notes on ShannonOS, the PAL and the move from Cortex-R to Cortex-A cores.

- Type: Tool
- Targets: Firmware
- Category: Firmware tools
- Relationship: Foundation tool
- Sources reviewed: 2026-10-27
- Added to the catalog: 2026-11-03
- Original resource: <https://github.com/alexander-pick/shannon_modem_loader>
- Primary source: <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/README.md>
- Catalog page: <https://awesomerea.org/resources/shannon-modem-loader/>
- Record JSON: <https://awesomerea.org/resources/shannon-modem-loader/record.json>
- Chinese version: [简体中文](https://awesomerea.org/zh/resources/shannon-modem-loader/index.md)

## Requirements & limits

- Latest release at review: 01.2025, published 2025-01-01; the reviewed main commit of 2025-01-03 only adds IDA Essential 9.0 to the installer's search list. The README calls the code work in progress and reports testing on a larger set of images from older models such as the G8700 and S7 up to the S22 and S24, with task identification working on recent images.
- The README reports testing with IDA Pro 9.0, IDA Pro 8.3 to 8.4 SP2 and IDA Home ARM, and says 7.x with the revamped IDAPython API might work. install.sh copies the loader, Python modules and signatures into a Linux IDA installation; on macOS or Windows the files are copied by hand following the README's table.
- Users supply a TOC-format Shannon modem image or crash dump; the repository contains no modem firmware. The README reports that a complete analysis takes about 10 minutes on average hardware.
- sig/ holds 17 premade FLIRT signature files for ARM Compiler/RVCT runtime functions, from version 3.1 to 5.06u7. The post-processor reads the image's RVCT build string, applies the matching signature, and on Linux offers to use the include directory of a matching legacy ARM compiler installed in the user's home directory. There are no tests or CI.
- MIT License. Modem firmware, IDA Pro and ARM compilers keep their own terms.

## Primary sources

1. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/README.md>
2. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/shannon_load.py>
3. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/shannon_postprocess.py>
4. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/shannon_pal_reconstructor.py>
5. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/shannon_scatterload.py>
6. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/shannon_mpu.py>
7. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/install.sh>
8. <https://github.com/alexander-pick/shannon_modem_loader/tree/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/sig>
9. <https://github.com/alexander-pick/shannon_modem_loader/blob/2dc27f01782eaaa55ef626e15ef6b4154bf0e392/LICENSE>
10. <https://github.com/alexander-pick/shannon_modem_loader/releases/tag/01.2025>

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## About this entry

The description was reviewed against primary sources.
Original editorial content: MIT. Linked projects, papers and assets retain their own rights and licenses.