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PS4 CFW and Hacks       Thread starter PSXHAX       Start date May 24, 2020 at 1:43 AM       9,937       14      
Since the OpenOrbis PlayStation 4 Toolchain release and related guides on his YouTube Channel, PS4 scene developer @SpecterDev of SpecterDev.ca (Patreon) shared via Twitter a Blog Post detailing some of the challenges he encountered porting the MUSL C standard library for Linux operating systems to PS4... including a FreeBSD syscall patch that clears R8-R10 on sysret. :geek:

Download: musl-master.zip / GIT

Check out the full Adventures of porting MUSL to PS4 article on DayZeroSec.com, with an excerpt below to quote: Conclusion

There are a lot of low-level factors to consider when porting something like a libc, and it's easy to get frustrated and fall victim to subtle discrepancies. To test the MUSL port, I wrote a suite of unit tests some readers may find interesting, and compiled it with the OpenOrbis PS4 Toolchain against the newly-built MUSL libc static library. Below you can find a link to the MUSL PS4 port [1], the mentioned set of tests [2], the test results directly from the PS4 [3], and other references.

[1] https://github.com/OpenOrbis/musl

[2] https://github.com/OpenOrbis/OpenOrbis-PS4-Toolchain/tree/master/samples

[3] https://pastebin.com/Wzvbdk8s

[4] https://nvd.nist.gov/vuln/detail/CVE-2019-5595

[5] https://www.freebsd.org/doc/en_US.ISO8859-1/books/developers-handbook/x86-return-values.html

:arrow: Recently PS4 scene developer @theorywrong who shared the TheUpdaterToolkit also sent out a Tweet stating the next article on his blog at TheoryWrong.me (Patreon) will show the PS4 some love. <3
SpecterDev Shares Low-Level Details on Porting MUSL to PS4.jpg
 

Comments

Stryker1

Member
Contributor
This is a way over cerebral overpass for me. Keep up the great work bro. I know this means something significant but not sure exactly what. Thanks.
 

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