mremap on score

remap a virtual memory address

sys_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len, unsigned long flags, unsigned long new_addr)
number216 (0xd8)
abicommon
entry pointsys_mremap
sinceLinux 3.7 or earlier (3.7 is the first release scanned for score)
man pagemremap(2)
sourceelixir.bootlin.com

Registers

registervalue
r27216, the syscall number
r4unsigned long addr
r5unsigned long old_len
r6unsigned long new_len
r7unsigned long flags
r8unsigned long new_addr
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/mremap?kernel=all