golden hour

/usr/include/asm

File/Folder	Size	Actions
a.out.h	693 B
auxvec.h	483 B
bitsperlong.h	229 B
boot.h	260 B
bootparam.h	4.39 KB
byteorder.h	137 B
debugreg.h	3.15 KB
e820.h	2.63 KB
errno.h	31 B
fcntl.h	31 B
hw_breakpoint.h	6 B
hyperv.h	13.32 KB
ioctl.h	31 B
ioctls.h	32 B
ipcbuf.h	32 B
ist.h	790 B
kvm.h	6.76 KB
kvm_para.h	2.77 KB
kvm_perf.h	325 B
ldt.h	963 B
mce.h	1.18 KB
mman.h	1.01 KB
msgbuf.h	32 B
msr-index.h	28.24 KB
msr.h	283 B
mtrr.h	4.06 KB
param.h	31 B
perf_regs.h	654 B
poll.h	30 B
posix_types.h	161 B
posix_types_32.h	702 B
posix_types_64.h	546 B
posix_types_x32.h	518 B
prctl.h	345 B
processor-flags.h	6.1 KB
ptrace-abi.h	1.76 KB
ptrace.h	1.17 KB
resource.h	34 B
sembuf.h	699 B
setup.h	6 B
shmbuf.h	32 B
sigcontext.h	5.11 KB
sigcontext32.h	1.64 KB
siginfo.h	431 B
signal.h	2.77 KB
socket.h	32 B
sockios.h	33 B
stat.h	2.89 KB
statfs.h	353 B
svm.h	5.09 KB
swab.h	661 B
termbits.h	34 B
termios.h	33 B
types.h	113 B
ucontext.h	339 B
unistd.h	296 B
unistd_32.h	9.4 KB
unistd_64.h	8.62 KB
unistd_x32.h	14.98 KB
vm86.h	2.98 KB
vmx.h	6.53 KB
vsyscall.h	375 B

Edit: signal.h

#ifndef _ASM_X86_SIGNAL_H
#define _ASM_X86_SIGNAL_H

#ifndef __ASSEMBLY__
#include <linux/types.h>
#include <linux/time.h>

/* Avoid too many header ordering problems.  */
struct siginfo;

/* Here we must cater to libcs that poke about in kernel headers.  */

#define NSIG		32
typedef unsigned long sigset_t;

#endif /* __ASSEMBLY__ */

#define SIGHUP		 1
#define SIGINT		 2
#define SIGQUIT		 3
#define SIGILL		 4
#define SIGTRAP		 5
#define SIGABRT		 6
#define SIGIOT		 6
#define SIGBUS		 7
#define SIGFPE		 8
#define SIGKILL		 9
#define SIGUSR1		10
#define SIGSEGV		11
#define SIGUSR2		12
#define SIGPIPE		13
#define SIGALRM		14
#define SIGTERM		15
#define SIGSTKFLT	16
#define SIGCHLD		17
#define SIGCONT		18
#define SIGSTOP		19
#define SIGTSTP		20
#define SIGTTIN		21
#define SIGTTOU		22
#define SIGURG		23
#define SIGXCPU		24
#define SIGXFSZ		25
#define SIGVTALRM	26
#define SIGPROF		27
#define SIGWINCH	28
#define SIGIO		29
#define SIGPOLL		SIGIO
/*
#define SIGLOST		29
*/
#define SIGPWR		30
#define SIGSYS		31
#define	SIGUNUSED	31

/* These should not be considered constants from userland.  */
#define SIGRTMIN	32
#define SIGRTMAX	_NSIG

/*
 * SA_FLAGS values:
 *
 * SA_ONSTACK indicates that a registered stack_t will be used.
 * SA_RESTART flag to get restarting signals (which were the default long ago)
 * SA_NOCLDSTOP flag to turn off SIGCHLD when children stop.
 * SA_RESETHAND clears the handler when the signal is delivered.
 * SA_NOCLDWAIT flag on SIGCHLD to inhibit zombies.
 * SA_NODEFER prevents the current signal from being masked in the handler.
 *
 * SA_ONESHOT and SA_NOMASK are the historical Linux names for the Single
 * Unix names RESETHAND and NODEFER respectively.
 */
#define SA_NOCLDSTOP	0x00000001u
#define SA_NOCLDWAIT	0x00000002u
#define SA_SIGINFO	0x00000004u
#define SA_ONSTACK	0x08000000u
#define SA_RESTART	0x10000000u
#define SA_NODEFER	0x40000000u
#define SA_RESETHAND	0x80000000u

#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

#define SA_RESTORER	0x04000000

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#include <asm-generic/signal-defs.h>

#ifndef __ASSEMBLY__

/* Here we must cater to libcs that poke about in kernel headers.  */
#ifdef __i386__

struct sigaction {
	union {
	  __sighandler_t _sa_handler;
	  void (*_sa_sigaction)(int, struct siginfo *, void *);
	} _u;
	sigset_t sa_mask;
	unsigned long sa_flags;
	void (*sa_restorer)(void);
};

#define sa_handler	_u._sa_handler
#define sa_sigaction	_u._sa_sigaction

#else /* __i386__ */

struct sigaction {
	__sighandler_t sa_handler;
	unsigned long sa_flags;
	__sigrestore_t sa_restorer;
	sigset_t sa_mask;		/* mask last for extensibility */
};

#endif /* !__i386__ */

typedef struct sigaltstack {
	void *ss_sp;
	int ss_flags;
	size_t ss_size;
} stack_t;

#endif /* __ASSEMBLY__ */

#endif /* _ASM_X86_SIGNAL_H */