sigprocmask on ia32

examine and change blocked signals

compat_sys_sigprocmask(int how, old_sigset_t *nset, old_sigset_t *oset)
number126 (0x7e)
abii386
entry pointcompat_sys_sigprocmask
sinceLinux 3.3 or earlier (3.3 is the first release scanned for ia32)
man pagesigprocmask(2)
sourceelixir.bootlin.com

Registers

registervalue
eax126, the syscall number
ebxint how
ecxold_sigset_t *nset
edxold_sigset_t *oset
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/sigprocmask