ia32_syscall
void ia32_syscall(struct trapframe *frame); /* Called from asm code */
SYSINIT(ia32_syscall, SI_SUB_EXEC, SI_ORDER_ANY, ia32_syscall_enable, NULL);
SYSUNINIT(ia32_syscall, SI_SUB_EXEC, SI_ORDER_ANY, ia32_syscall_disable, NULL);
void ia32_syscall(struct trapframe *);