|
|
| (7 intermediate revisions by 4 users not shown) |
| Line 1: |
Line 1: |
| Compiling for the ARM platform requires a special toolchain. The GNU ARM toolchain has all the basic tools needed to build and examine software on the iPod.
| | ==GNU ARM toolchain== |
|
| |
|
| ==Obtaining==
| | Use gcc-arm-embedded from your Linux distribution package manager. |
| The GNU ARM toolchain can be downloaded from http://www.gnuarm.com/. You can either download source or binaries. Put the binaries in your system path.
| |
| | |
| ==Assembling==
| |
| <pre>
| |
| arm-elf-as -o test.o test.asm
| |
| arm-elf-ld -e 0 -Ttext=0 -o test.elf test.o | |
| arm-elf-objcopy -O binary test.elf test.bin
| |
| </pre>
| |
| | |
| ==Disassembling==
| |
| <pre>
| |
| arm-elf-objdump -bbinary -marmv4 -D test.bin > test.asm
| |
| </pre>
| |
| | |
| ==Preparing for IDA Pro demo==
| |
| The IDA Pro demo can't open raw ARM files but it can open ELF files. We need to convert the raw binaries to ELF binaries as a workaround. Assuming the input file is called "dump.bin" and the output will be called "dump.elf", run these commands:
| |
| <pre>
| |
| arm-elf-objcopy --change-addresses=0xff810000 -I binary -O elf32-littlearm -B arm dump.bin dump.elf
| |
| arm-elf-objcopy --set-section-flags .data=code dump.elf
| |
| </pre>
| |
| | |
| ==Helpful pages==
| |
| http://chdk.wikia.com/wiki/GPL_Disassembling
| |
| | |
| http://www.dwelch.com/ipod/
| |
Latest revision as of 21:44, 25 September 2025
Use gcc-arm-embedded from your Linux distribution package manager.