fcntl64 on ia32

manipulate file descriptor

compat_sys_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
number221 (0xdd)
abii386
entry pointcompat_sys_fcntl64
sinceLinux 3.3 or earlier (3.3 is the first release scanned for ia32)
man pagefcntl64(2)
sourceelixir.bootlin.com

Registers

registervalue
eax221, the syscall number
ebxunsigned int fd
ecxunsigned int cmd
edxunsigned long arg
eaxthe return value

Then run int 0x80 to enter the kernel.

This compat ABI is only available when the kernel is built with CONFIG_IA32_EMULATION.

Same syscall on other architectures

Get this as JSON: https://api.syscall.sh/v2/syscalls/ia32/fcntl64