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| − | 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== |
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| − | ==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.
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| − | ==Assembling==
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| − | <pre>
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| − | arm-elf-as -o test.o test.asm
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| − | arm-elf-ld -e 0 -Ttext=0 -o test.elf test.o | |
| − | arm-elf-objcopy -O binary test.elf test.bin
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| − | </pre>
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| − | | |
| − | ==Disassembling==
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| − | <pre>
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| − | arm-elf-objdump -bbinary -marmv4 -D test.bin > test.asm
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| − | </pre>
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| − | | |
| − | ==Preparing for IDA Pro demo==
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| − | 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:
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| − | <pre>
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| − | arm-elf-objcopy --change-addresses=0xff810000 -I binary -O elf32-littlearm -B arm dump.bin dump.elf
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| − | arm-elf-objcopy --set-section-flags .data=code dump.elf
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| − | </pre>
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| − | | |
| − | ==Helpful pages==
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| − | http://chdk.wikia.com/wiki/GPL_Disassembling
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| − | | |
| − | http://www.dwelch.com/ipod/
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Latest revision as of 00:44, 26 September 2025
GNU ARM toolchain
Use gcc-arm-embedded from your Linux distribution package manager.
