syscall.sh / x86 / copy_file_range

copy_file_range

Copy a range of data from one file to another

sys_copy_file_range(int fd_in, loff_t *off_in, int fd_out, loff_t *off_out, size_t len, unsigned int flags)
number377 (0x179)
abii386
entry pointsys_copy_file_range
sinceLinux 4.5
man pagecopy_file_range(2)
sourceelixir.bootlin.com

Registers

registervalue
eax377, the syscall number
ebxint fd_in
ecxloff_t *off_in
edxint fd_out
esiloff_t *off_out
edisize_t len
ebpunsigned int flags
eaxthe return value

Then run int 0x80 to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/x86/copy_file_range