lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [thread-next>] [day] [month] [year] [list]
Date:   Wed, 6 May 2020 21:46:45 +0900
To:     <>, <>,
Cc:     <>, <>,
        <>, <>,
Subject: Reqeust export symbol for API in arch/arm64/*


I am software engineer in charge of BSP (Samsung SOC vendor).

Recently, Google introduced GKI from Android R version.
We cannot use mainline API without 'export symbol' by the GKI policy.
But we want to make an arm64 specific vendor driver in {kernel source

Could you support us to use the below APIs?

1. [register_kernel_break_hook]
To make runtime debug feature. We need architecture support.(break hook)
It's an architecture specific function. After cpu execute specific
instruction, A function with a parameter which is the context at that
time(the executing specific instruction) is performed. I am trying to
restore the locked context by using this fuction with  the el3 trap for
debugging hardlockup core(s).

2. [dump_backtrace]
Although 'dump_stack' is already supported, we need 'dump_backtrace' also.
Because we need lighten api to debug system. In some situation like bus
hang(HW bug), dump_stack highly likely make a problem again while printing
debug information.

Powered by blists - more mailing lists