Preferred Executable Format : Joy!peff

[Maijin]

To be added in radare2-extras

https://en.wikipedia.org/wiki/Preferred_Executable_Format https://knight.sc/software/2020/04/19/classic-macos-development.html (see books) https://vintageapple.org/macprogramming/

[radare]

any sample bin? any specs? any implementation?

[Maijin]

• https://github.com/haiku/haiku/blob/master/headers/private/storage/Pef.h
• http://web.archive.org/web/20020208214155/http://developer.apple.com/techpubs/mac/runtimehtml/RTArch-89.html
• https://developer.apple.com/legacy/library/documentation/mac/pdf/MacOS_RT_Architectures.pdf
• https://web.archive.org/web/20110603204602/http://developer.apple.com/tools/mpw-tools/commandref/dumppef.html

[radare]

what about having a file that can be shared? is this the default haiku file format? i though they used elf

On 06 Jun 2016, at 20:27, Maijin notifications@github.com wrote:

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[Maijin]

Classila can: Even got source code: https://code.google.com/archive/p/classilla/downloads

I don't think it is, probably just legacy for BeOS

[mmuman]

I don't think it is, probably just legacy for BeOS

Indeed, the PEF format was used in BeOS but only on PPC, on x86 they first used PE then ELF. Haiku just uses ELF.

It seems it's the only known format for a kernel the BeBox rom knows how to load and boot. Oddly, BFD doesn't seem to actually write it correctly. I was expecting it to allow me to generate a bootloader that would run there…

[Maijin]

Lot of resources here:

https://knight.sc/software/2020/04/19/classic-macos-development.html (see books) https://vintageapple.org/macprogramming/

[mmuman]

For the record, I started implementing the missing bits in BFD but I didn't touch it for a while, and since binutils seems to want to remove all non-ELF targets it's probably completely useless.