How to disassemble a PSP ELF with Ida Pro?

NDT · Post by **NDT** » Sat Jul 02, 2005 9:59 pm

How to disassemble a PSP ELF with Ida Pro?
Is there a patcher to revert the work of outpatch?

Thanks

Post by **mrbrown** » Sat Jul 02, 2005 10:17 pm

Wrong forum, moved.

Post by **TyRaNiD** » Sat Jul 02, 2005 11:22 pm

The prxes we build are strange IDA doesn't really like them, for Sony stuff grab prxtool from subversion and do prxtool -o newfile.prx -e sonyfile.prx to be able to load it in ida. Whether that works for our stuff I couldn't say :)

NDT · Post by **NDT** » Sun Jul 03, 2005 9:45 am

Thanks TyRaNiD,
do you know where i can get that prxtool please?

Pikoro · Post by **Pikoro** » Mon Jul 04, 2005 11:20 am

Yes, where is this prxtool? who's subversion repository? sony's?

Cheers

Post by **ooPo** » Mon Jul 04, 2005 11:48 am

In the pspsdk readme:

Subversion

svn://svn.pspdev.org/
http://svn.pspdev.org/

PSPDEV tools and libraries can be found in the psp/ repository at
svn://svn.pspdev.org/. PSP homebrew games, demos, and other applications
can be found in the pspware/ repository located at the same URL. To view
the contents of these repositories using a Web browser, visit
http://svn.pspdev.org/.

There's even more in the readme about it. Perhaps taking a moment to read it over could avoid the embarassing question you just asked.

Post by **Warren** » Mon Jul 04, 2005 2:11 pm

Or you could just change two bytes at 0x10 of the file to 02 00 and IDA will load it fine. Select mipsl mode for processor type.

The more useful thing about prxtool is that you can get it to produce an idc script that will do a lot of organisational work for you once you have an elf disassembled.

Post by **TyRaNiD** » Mon Jul 04, 2005 3:48 pm

And don't forget relocation fixups :)

bbb · Post by **bbb** » Wed Jul 06, 2005 2:00 am

Any chance of a windows prxtool?

brad_irc · Post by **brad_irc** » Sun Jul 10, 2005 5:58 am

Is it within our legal right to disassemble and analyse boot.bin files ? I ask this first, before asking why IDA doesn't seem to disassemble them properly...