syscall.sh / csky / remap_file_pages

remap_file_pages

create a nonlinear file mapping

sys_remap_file_pages(unsigned long start, unsigned long size, unsigned long prot, unsigned long pgoff, unsigned long flags)
number234 (0xea)
abicommon
entry pointsys_remap_file_pages
sinceLinux 4.20
man pageremap_file_pages(2)
sourceelixir.bootlin.com

Registers

registervalue
r7234, the syscall number
a0unsigned long start
a1unsigned long size
a2unsigned long prot
a3unsigned long pgoff
r4unsigned long flags
a0the return value

Then run trap 0 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/csky/remap_file_pages