syscall.sh / x32 / sendfile

sendfile

transfer data between file descriptors

sys_sendfile64(int out_fd, int in_fd, loff_t *offset, size_t count)
number1073741864 (0x40000028)
abicommon
entry pointsys_sendfile64
sinceLinux 3.4
man pagesendfile(2)
sourceelixir.bootlin.com

Registers

registervalue
rax1073741864, the syscall number
rdiint out_fd
rsiint in_fd
rdxloff_t *offset
r10size_t count
raxthe return value

Then run syscall to enter the kernel.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/x32/sendfile