toaruos/base/usr/include/kernel/signal.h

#pragma once

#include <stdint.h>
#include <sys/types.h>
#include <kernel/arch/x86_64/regs.h>

typedef struct {
	int signum;
	uintptr_t handler;
	struct regs registers_before;
} signal_t;

extern void fix_signal_stacks(void);
extern int send_signal(pid_t process, int signal, int force_root);
extern int group_send_signal(pid_t group, int signal, int force_root);
extern void handle_signal(process_t * proc, signal_t * sig);

__attribute__((noreturn))
extern void return_from_signal_handler(void);