swapon on ia32

start/stop swapping to file/device

sys_swapon(const char *specialfile, int swap_flags)
number87 (0x57)
abii386
kconfigCONFIG_SWAP
entry pointsys_swapon
sinceLinux 3.3 or earlier (3.3 is the first release scanned for ia32)
man pageswapon(2)
sourceelixir.bootlin.com

Registers

registervalue
eax87, the syscall number
ebxconst char *specialfile
ecxint swap_flags
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/swapon