This file is indexed.

/usr/include/diet/signal.h is in dietlibc-dev 0.33~cvs20120325-4.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
#ifndef _SIGNAL_H
#define _SIGNAL_H

#include <sys/cdefs.h>

__BEGIN_DECLS

#define __WANT_POSIX1B_SIGNALS__

#include <sys/types.h>
#include <endian.h>

#define NSIG		32

#ifdef __mips__
#define _NSIG		128
#else
#define _NSIG		64
#endif

#define SIGHUP		 1
#define SIGINT		 2
#define SIGQUIT		 3
#define SIGILL		 4
#define SIGTRAP		 5
#define SIGABRT		 6
#define SIGIOT		 6
#define SIGFPE		 8
#define SIGKILL		 9
#define SIGSEGV		11
#define SIGPIPE		13
#define SIGALRM		14
#define SIGTERM		15
#define SIGUNUSED	31
#if defined(__i386__) || defined(__x86_64__) || defined(__powerpc__) || defined(__arm__) \
	|| defined(__s390__) || defined(__ia64__) || defined(__powerpc64__)
#define SIGBUS		 7
#define SIGUSR1		10
#define SIGUSR2		12
#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 SIGPWR		30
#define SIGSYS		31
#elif defined(__alpha__) || defined(__sparc__)
#define SIGEMT		 7
#define SIGBUS		10
#define SIGSYS		12
#define SIGURG		16
#define SIGSTOP		17
#define SIGTSTP		18
#define SIGCONT		19
#define SIGCHLD		20
#define SIGTTIN		21
#define SIGTTOU		22
#define SIGIO		23
#define SIGXCPU		24
#define SIGXFSZ		25
#define SIGVTALRM	26
#define SIGPROF		27
#define SIGWINCH	28
#define SIGPWR		29
#define SIGUSR1		30
#define SIGUSR2		31
#if defined(__alpha__)
#define SIGINFO		SIGPWR
#endif
#elif defined(__mips__)
#define SIGEMT		 7
#define SIGBUS		10
#define SIGSYS		12
#define SIGUSR1		16
#define SIGUSR2		17
#define SIGCHLD		18
#define SIGPWR		19
#define SIGWINCH	20
#define SIGURG		21
#define SIGIO		22
#define SIGSTOP		23
#define SIGTSTP		24
#define SIGCONT		25
#define SIGTTIN		26
#define SIGTTOU		27
#define SIGVTALRM	28
#define SIGPROF		29
#define SIGXCPU		30
#define SIGXFSZ		31
#elif defined(__hppa__)
#define SIGEMT		 7
#define SIGBUS		10
#define SIGSYS		12
#define SIGUSR1		16
#define SIGUSR2		17
#define SIGCHLD		18
#define SIGPWR		19
#define SIGVTALRM	20
#define SIGPROF		21
#define SIGIO		22
#define SIGWINCH	23
#define SIGSTOP		24
#define SIGTSTP		25
#define SIGCONT		26
#define SIGTTIN		27
#define SIGTTOU		28
#define SIGURG		29
#define SIGLOST		30
#define SIGUNUSED	31
#define SIGRESERVE	SIGUNUSE
#define SIGXCPU		33
#define SIGXFSZ		34
#define SIGSTKFLT	36

#else
#error signal layout not yet known
#endif

#define SIGCLD		SIGCHLD
#define SIGPOLL		SIGIO

/* These should not be considered constants from userland.  */
#ifdef __hppa__
#define SIGRTMIN	37
#else
#define SIGLOST		SIGPWR
#define SIGRTMIN	32
#endif
#define SIGRTMAX	(_NSIG-1)

/* SA_FLAGS values: */
#if defined(__alpha__)
#define SA_ONSTACK	0x00000001
#define SA_RESTART	0x00000002
#define SA_NOCLDSTOP	0x00000004
#define SA_NODEFER	0x00000008
#define SA_RESETHAND	0x00000010
#define SA_NOCLDWAIT	0x00000020 /* not supported yet */
#define SA_SIGINFO	0x00000040
#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
#elif defined(__hppa__)
#define SA_ONSTACK	0x00000001
#define SA_RESETHAND	0x00000004
#define SA_NOCLDSTOP	0x00000008
#define SA_SIGINFO	0x00000010
#define SA_NODEFER	0x00000020
#define SA_RESTART	0x00000040
#define SA_NOCLDWAIT	0x00000080 /* not supported yet */
#define _SA_SIGGFAULT	0x00000100 /* HPUX */
#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
#define SA_RESTORER	0x04000000 /* obsolete -- ignored */
#elif defined (__sparc__)
#define SV_SSTACK	1	/* This signal handler should use sig-stack */
#define SV_INTR		2	/* Sig return should not restart system call */
#define SV_RESET	4	/* Set handler to SIG_DFL upon taken signal */
#define SV_IGNCHILD	8	/* Do not send SIGCHLD */

#define SA_NOCLDSTOP	SV_IGNCHILD
#define SA_STACK	SV_SSTACK
#define SA_ONSTACK	SV_SSTACK
#define SA_RESTART	SV_INTR
#define SA_RESETHAND	SV_RESET
#define SA_INTERRUPT	0x10
#define SA_NODEFER	0x20
#define SA_SHIRQ	0x40
#define SA_NOCLDWAIT	0x100	/* not supported yet */
#define SA_SIGINFO	0x200
#else
#if defined (__mips__)
#define SA_NOCLDSTOP	0x00000001
#define SA_SIGINFO	0x00000008
#define SA_NOCLDWAIT	0x00010000 /* Not supported yet */
#else
#define SA_NOCLDSTOP	0x00000001
#define SA_NOCLDWAIT	0x00000002 /* not supported yet */
#define SA_SIGINFO	0x00000004
#endif
#if defined(__arm__)
#define SA_THIRTYTWO	0x02000000
#endif
#define SA_RESTORER	0x04000000
#define SA_ONSTACK	0x08000000
#define SA_RESTART	0x10000000
#define SA_INTERRUPT	0x20000000 /* dummy -- ignored */
#define SA_NODEFER	0x40000000
#define SA_RESETHAND	0x80000000
#endif

/* ugh, historic Linux legacy, for gpm :-( */
#define SA_NOMASK	SA_NODEFER
#define SA_ONESHOT	SA_RESETHAND

/* sigaltstack controls */
#define SS_ONSTACK	1
#define SS_DISABLE	2

#define MINSIGSTKSZ	2048
#define SIGSTKSZ	8192

#if defined(__sparc__)
#define SIG_BLOCK	1
#define SIG_UNBLOCK	2
#define SIG_SETMASK	4
#elif defined(__alpha__) || defined(__mips__)
#define SIG_BLOCK	1
#define SIG_UNBLOCK	2
#define SIG_SETMASK	3
#else
#define SIG_BLOCK	0	/* for blocking signals */
#define SIG_UNBLOCK	1	/* for unblocking signals */
#define SIG_SETMASK	2	/* for setting the signal mask */
#endif

typedef int sig_atomic_t;

typedef void (*sighandler_t)(int);

#ifdef _BSD_SOURCE
typedef sighandler_t sig_t;
#endif

#ifdef _GNU_SOURCE
typedef sighandler_t __sighandler_t;	/* shoot the glibc people! */
#endif

#define SIG_DFL ((sighandler_t)0L)	/* default signal handling */
#define SIG_IGN ((sighandler_t)1L)	/* ignore signal */
#define SIG_ERR ((sighandler_t)-1L)	/* error return from signal */

typedef union sigval {
  int sival_int;
  void *sival_ptr;
} sigval_t;

#define SI_MAX_SIZE	128
#if __WORDSIZE == 64
#define SI_PAD_SIZE	((SI_MAX_SIZE/sizeof(int32_t)) - 4)
#else
#define SI_PAD_SIZE	((SI_MAX_SIZE/sizeof(int32_t)) - 3)
#endif

#ifdef __sparc_v9__
typedef int32_t __band_t;
#else
typedef long __band_t;
#endif

typedef struct siginfo {
  int32_t si_signo;
  int32_t si_errno;
  int32_t si_code;
  union {
    int32_t _pad[SI_PAD_SIZE];
    /* kill() */
    struct {
      pid_t _pid;		/* sender's pid */
      uid_t _uid;		/* sender's uid */
    } _kill;
    /* POSIX.1b timers */
    struct {
      uint32_t _timer1;
      uint32_t _timer2;
    } _timer;
    /* POSIX.1b signals */
    struct {
      pid_t _pid;		/* sender's pid */
      uid_t _uid;		/* sender's uid */
      sigval_t _sigval;
    } _rt;
    /* SIGCHLD */
    struct {
      pid_t _pid;		/* which child */
      uid_t _uid;		/* sender's uid */
      int32_t _status;		/* exit code */
      clock_t _utime;
      clock_t _stime;
    } _sigchld;
    /* SIGILL, SIGFPE, SIGSEGV, SIGBUS */
    struct {
      void *_addr; /* faulting insn/memory ref. */
    } _sigfault;
    /* SIGPOLL */
    struct {
      __band_t _band;	/* POLL_IN, POLL_OUT, POLL_MSG */
      int32_t _fd;
    } _sigpoll;
  } _sifields;
} siginfo_t;

/*
 * How these fields are to be accessed.
 */
#define si_pid		_sifields._kill._pid
#define si_uid		_sifields._kill._uid
#define si_status	_sifields._sigchld._status
#define si_utime	_sifields._sigchld._utime
#define si_stime	_sifields._sigchld._stime
#define si_value	_sifields._rt._sigval
#define si_int		_sifields._rt._sigval.sival_int
#define si_ptr		_sifields._rt._sigval.sival_ptr
#define si_addr		_sifields._sigfault._addr
#define si_band		_sifields._sigpoll._band
#define si_fd		_sifields._sigpoll._fd

/* Values for `si_code'.  Positive values are reserved for kernel-generated
   signals.  */
enum {
  SI_ASYNCNL = -6,		/* Sent by asynch name lookup completion.  */
# define SI_ASYNCNL	SI_ASYNCNL
  SI_SIGIO,			/* Sent by queued SIGIO. */
# define SI_SIGIO	SI_SIGIO
  SI_ASYNCIO,			/* Sent by AIO completion.  */
# define SI_ASYNCIO	SI_ASYNCIO
  SI_MESGQ,			/* Sent by real time mesq state change.  */
# define SI_MESGQ	SI_MESGQ
  SI_TIMER,			/* Sent by timer expiration.  */
# define SI_TIMER	SI_TIMER
  SI_QUEUE,			/* Sent by sigqueue.  */
# define SI_QUEUE	SI_QUEUE
  SI_USER,			/* Sent by kill, sigsend, raise.  */
# define SI_USER	SI_USER
  SI_KERNEL = 0x80		/* Send by kernel.  */
#define SI_KERNEL	SI_KERNEL
};


/* `si_code' values for SIGILL signal.  */
enum {
  ILL_ILLOPC = 1,		/* Illegal opcode.  */
# define ILL_ILLOPC	ILL_ILLOPC
  ILL_ILLOPN,			/* Illegal operand.  */
# define ILL_ILLOPN	ILL_ILLOPN
  ILL_ILLADR,			/* Illegal addressing mode.  */
# define ILL_ILLADR	ILL_ILLADR
  ILL_ILLTRP,			/* Illegal trap. */
# define ILL_ILLTRP	ILL_ILLTRP
  ILL_PRVOPC,			/* Privileged opcode.  */
# define ILL_PRVOPC	ILL_PRVOPC
  ILL_PRVREG,			/* Privileged register.  */
# define ILL_PRVREG	ILL_PRVREG
  ILL_COPROC,			/* Coprocessor error.  */
# define ILL_COPROC	ILL_COPROC
  ILL_BADSTK			/* Internal stack error.  */
# define ILL_BADSTK	ILL_BADSTK
};

/* `si_code' values for SIGFPE signal.  */
enum {
  FPE_INTDIV = 1,		/* Integer divide by zero.  */
# define FPE_INTDIV	FPE_INTDIV
  FPE_INTOVF,			/* Integer overflow.  */
# define FPE_INTOVF	FPE_INTOVF
  FPE_FLTDIV,			/* Floating point divide by zero.  */
# define FPE_FLTDIV	FPE_FLTDIV
  FPE_FLTOVF,			/* Floating point overflow.  */
# define FPE_FLTOVF	FPE_FLTOVF
  FPE_FLTUND,			/* Floating point underflow.  */
# define FPE_FLTUND	FPE_FLTUND
  FPE_FLTRES,			/* Floating point inexact result.  */
# define FPE_FLTRES	FPE_FLTRES
  FPE_FLTINV,			/* Floating point invalid operation.  */
# define FPE_FLTINV	FPE_FLTINV
  FPE_FLTSUB			/* Subscript out of range.  */
# define FPE_FLTSUB	FPE_FLTSUB
};

/* `si_code' values for SIGSEGV signal.  */
enum {
  SEGV_MAPERR = 1,		/* Address not mapped to object.  */
# define SEGV_MAPERR	SEGV_MAPERR
  SEGV_ACCERR			/* Invalid permissions for mapped object.  */
# define SEGV_ACCERR	SEGV_ACCERR
};

/* `si_code' values for SIGBUS signal.  */
enum {
  BUS_ADRALN = 1,		/* Invalid address alignment.  */
# define BUS_ADRALN	BUS_ADRALN
  BUS_ADRERR,			/* Non-existant physical address.  */
# define BUS_ADRERR	BUS_ADRERR
  BUS_OBJERR			/* Object specific hardware error.  */
# define BUS_OBJERR	BUS_OBJERR
};

/* `si_code' values for SIGTRAP signal.  */
enum {
  TRAP_BRKPT = 1,		/* Process breakpoint.  */
# define TRAP_BRKPT	TRAP_BRKPT
  TRAP_TRACE			/* Process trace trap.  */
# define TRAP_TRACE	TRAP_TRACE
};

/* `si_code' values for SIGCHLD signal.  */
enum {
  CLD_EXITED = 1,		/* Child has exited.  */
# define CLD_EXITED	CLD_EXITED
  CLD_KILLED,			/* Child was killed.  */
# define CLD_KILLED	CLD_KILLED
  CLD_DUMPED,			/* Child terminated abnormally.  */
# define CLD_DUMPED	CLD_DUMPED
  CLD_TRAPPED,			/* Traced child has trapped.  */
# define CLD_TRAPPED	CLD_TRAPPED
  CLD_STOPPED,			/* Child has stopped.  */
# define CLD_STOPPED	CLD_STOPPED
  CLD_CONTINUED			/* Stopped child has continued.  */
# define CLD_CONTINUED	CLD_CONTINUED
};

/* `si_code' values for SIGPOLL signal.  */
enum {
  POLL_IN = 1,			/* Data input available.  */
# define POLL_IN	POLL_IN
  POLL_OUT,			/* Output buffers available.  */
# define POLL_OUT	POLL_OUT
  POLL_MSG,			/* Input message available.   */
# define POLL_MSG	POLL_MSG
  POLL_ERR,			/* I/O error.  */
# define POLL_ERR	POLL_ERR
  POLL_PRI,			/* High priority input available.  */
# define POLL_PRI	POLL_PRI
  POLL_HUP			/* Device disconnected.  */
# define POLL_HUP	POLL_HUP
};

#define _NSIG_WORDS	((_NSIG/sizeof(long))>>3)

typedef struct {
  unsigned long sig[_NSIG_WORDS];
} sigset_t;

struct sigaction {
#if defined(__alpha__) || defined(__ia64__) || defined(__hppa__)
  union {
    sighandler_t _sa_handler;
    void (*_sa_sigaction)(int, siginfo_t*, void*);
  } _u;
  unsigned long sa_flags;
  sigset_t sa_mask;
#elif defined(__mips__)
  unsigned long sa_flags;
  union {
    sighandler_t _sa_handler;
    void (*_sa_sigaction)(int, siginfo_t*, void*);
  } _u;
  sigset_t sa_mask;
  void (*sa_restorer)(void);
  int32_t sa_resv[1];
#else	/* arm, i386, ppc, s390, sparc, saprc64, x86_64 */
  union {
    sighandler_t _sa_handler;
    void (*_sa_sigaction)(int, siginfo_t*, void*);
  } _u;
  unsigned long sa_flags;
  void (*sa_restorer)(void);
  sigset_t sa_mask;
#endif
};

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


#define SIGEV_SIGNAL    0       /* notify via signal */
#define SIGEV_NONE      1       /* other notification: meaningless */
#define SIGEV_THREAD    2       /* deliver via thread creation */
#define SIGEV_THREAD_ID 4       /* deliver to thread */

#define SIGEV_MAX_SIZE  64
#ifndef SIGEV_PAD_SIZE
#define SIGEV_PAD_SIZE  ((SIGEV_MAX_SIZE/sizeof(int32_t)) - 3)
#endif

typedef struct sigevent {
  sigval_t sigev_value;
  int32_t sigev_signo;
  int32_t sigev_notify;
  union {
    int32_t _pad[SIGEV_PAD_SIZE];
    int32_t _tid;

    struct {
      void(*_function)(sigval_t);
      void*_attribute; /* really pthread_attr_t */
    } _sigev_thread;
  } _sigev_un;
} sigevent_t;

#define sigev_notify_function   _sigev_un._sigev_thread._function
#define sigev_notify_attributes _sigev_un._sigev_thread._attribute
#define sigev_notify_thread_id  _sigev_un._tid

typedef struct sigaltstack {
#if defined(__mips__)
  void *ss_sp;
  size_t ss_size;
  int32_t ss_flags;
#else
  void *ss_sp;
  int32_t ss_flags;
  size_t ss_size;
#endif
} stack_t;

int sigaltstack(const struct sigaltstack *newstack, struct sigaltstack *oldstack) __THROW;

int sigemptyset(sigset_t *set) __THROW;
int sigfillset(sigset_t *set) __THROW;
int sigaddset(sigset_t *set, int signum) __THROW;
int sigdelset(sigset_t *set, int signum) __THROW;
int sigismember(const sigset_t *set, int signo) __THROW;
int sigsuspend(const sigset_t *mask) __THROW;
int sigpending(sigset_t *set) __THROW;
int sigprocmask(int how, const sigset_t *set, sigset_t *oldset) __THROW;

#ifdef _GNU_SOURCE
int sigisemptyset(const sigset_t *set) __THROW __pure;
int sigorset(sigset_t *set, const sigset_t *left, const sigset_t *right) __THROW;
int sigandset(sigset_t *set, const sigset_t *left, const sigset_t *right) __THROW;
#endif

sighandler_t signal(int signum, sighandler_t action);

int raise (int sig) __THROW;
int kill(pid_t pid, int sig) __THROW;

int sigaction(int signum, const struct sigaction *act, struct sigaction *oldact) __THROW;

#include <sys/time.h>

int sigtimedwait(const sigset_t *mask, siginfo_t *info, const struct timespec *ts) __THROW;
int sigqueueinfo(pid_t pid, int sig, siginfo_t *info) __THROW;
int siginterrupt(int sig, int flag) __THROW;

int killpg(pid_t pgrp, int sig) __THROW;

/* 0 is OK ! kernel puts in MAX_THREAD_TIMEOUT :) */
#define sigwaitinfo(m, i) sigtimedwait((m),(i),0)

int sigwait(const sigset_t* set,int* sig) __THROW;

extern const char *const* sys_siglist;

#include <sys/ucontext.h>

__END_DECLS

#endif