getrandom on score

obtain a series of random bytes

sys_getrandom(char *buf, size_t count, unsigned int flags)
number278 (0x116)
abicommon
entry pointsys_getrandom
sinceLinux 3.17
man pagegetrandom(2)
sourceelixir.bootlin.com

Registers

registervalue
r27278, the syscall number
r4char *buf
r5size_t count
r6unsigned int flags
r4the return value

Then run syscall to enter the kernel.

r7 is the error flag and r4 then holds the positive error number.

This architecture was removed from the Linux kernel in Linux 4.17. The newest release with a syscall table here is Linux 4.16. The other removed architectures live on the historical architectures page.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/score/getrandom?kernel=all