[thirdparty/systemd.git] / src / basic / missing_syscall.h

/* SPDX-License-Identifier: LGPL-2.1+ */
#pragma once

/* Missing glibc definitions to access certain kernel APIs */

#include <fcntl.h>
#include <sys/syscall.h>
#include <sys/types.h>
#include <unistd.h>

#ifdef ARCH_MIPS
#include <asm/sgidefs.h>
#endif

#include "missing_keyctl.h"
#include "missing_stat.h"

/* linux/kcmp.h */
#ifndef KCMP_FILE /* 3f4994cfc15f38a3159c6e3a4b3ab2e1481a6b02 (3.19) */
#define KCMP_FILE 0
#endif

#if !HAVE_PIVOT_ROOT
static inline int missing_pivot_root(const char *new_root, const char *put_old) {
        return syscall(__NR_pivot_root, new_root, put_old);
}

#  define pivot_root missing_pivot_root
#endif

/* ======================================================================= */

#if !HAVE_MEMFD_CREATE
#  ifndef __NR_memfd_create
#    if defined __x86_64__
#      define __NR_memfd_create 319
#    elif defined __arm__
#      define __NR_memfd_create 385
#    elif defined __aarch64__
#      define __NR_memfd_create 279
#    elif defined __s390__
#      define __NR_memfd_create 350
#    elif defined _MIPS_SIM
#      if _MIPS_SIM == _MIPS_SIM_ABI32
#        define __NR_memfd_create 4354
#      endif
#      if _MIPS_SIM == _MIPS_SIM_NABI32
#        define __NR_memfd_create 6318
#      endif
#      if _MIPS_SIM == _MIPS_SIM_ABI64
#        define __NR_memfd_create 5314
#      endif
#    elif defined __i386__
#      define __NR_memfd_create 356
#    elif defined __arc__
#      define __NR_memfd_create 279
#    else
#      warning "__NR_memfd_create unknown for your architecture"
#    endif
#  endif

static inline int missing_memfd_create(const char *name, unsigned int flags) {
#  ifdef __NR_memfd_create
        return syscall(__NR_memfd_create, name, flags);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define memfd_create missing_memfd_create
#endif

/* ======================================================================= */

#if !HAVE_GETRANDOM
#  ifndef __NR_getrandom
#    if defined __x86_64__
#      define __NR_getrandom 318
#    elif defined(__i386__)
#      define __NR_getrandom 355
#    elif defined(__arm__)
#      define __NR_getrandom 384
#   elif defined(__aarch64__)
#      define __NR_getrandom 278
#    elif defined(__ia64__)
#      define __NR_getrandom 1339
#    elif defined(__m68k__)
#      define __NR_getrandom 352
#    elif defined(__s390x__)
#      define __NR_getrandom 349
#    elif defined(__powerpc__)
#      define __NR_getrandom 359
#    elif defined _MIPS_SIM
#      if _MIPS_SIM == _MIPS_SIM_ABI32
#        define __NR_getrandom 4353
#      endif
#      if _MIPS_SIM == _MIPS_SIM_NABI32
#        define __NR_getrandom 6317
#      endif
#      if _MIPS_SIM == _MIPS_SIM_ABI64
#        define __NR_getrandom 5313
#      endif
#    elif defined(__arc__)
#      define __NR_getrandom 278
#    else
#      warning "__NR_getrandom unknown for your architecture"
#    endif
#  endif

static inline int missing_getrandom(void *buffer, size_t count, unsigned flags) {
#  ifdef __NR_getrandom
        return syscall(__NR_getrandom, buffer, count, flags);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define getrandom missing_getrandom
#endif

/* ======================================================================= */

#if !HAVE_GETTID
static inline pid_t missing_gettid(void) {
        return (pid_t) syscall(__NR_gettid);
}

#  define gettid missing_gettid
#endif

/* ======================================================================= */

#if !HAVE_NAME_TO_HANDLE_AT
#  ifndef __NR_name_to_handle_at
#    if defined(__x86_64__)
#      define __NR_name_to_handle_at 303
#    elif defined(__i386__)
#      define __NR_name_to_handle_at 341
#    elif defined(__arm__)
#      define __NR_name_to_handle_at 370
#    elif defined(__powerpc__)
#      define __NR_name_to_handle_at 345
#    elif defined(__arc__)
#      define __NR_name_to_handle_at 264
#    else
#      error "__NR_name_to_handle_at is not defined"
#    endif
#  endif

struct file_handle {
        unsigned int handle_bytes;
        int handle_type;
        unsigned char f_handle[0];
};

static inline int missing_name_to_handle_at(int fd, const char *name, struct file_handle *handle, int *mnt_id, int flags) {
#  ifdef __NR_name_to_handle_at
        return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define name_to_handle_at missing_name_to_handle_at
#endif

/* ======================================================================= */

#if !HAVE_SETNS
#  ifndef __NR_setns
#    if defined(__x86_64__)
#      define __NR_setns 308
#    elif defined(__i386__)
#      define __NR_setns 346
#    elif defined(__arc__)
#      define __NR_setns 268
#    else
#      error "__NR_setns is not defined"
#    endif
#  endif

static inline int missing_setns(int fd, int nstype) {
#  ifdef __NR_setns
        return syscall(__NR_setns, fd, nstype);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define setns missing_setns
#endif

/* ======================================================================= */

static inline pid_t raw_getpid(void) {
#if defined(__alpha__)
        return (pid_t) syscall(__NR_getxpid);
#else
        return (pid_t) syscall(__NR_getpid);
#endif
}

/* ======================================================================= */

#if !HAVE_RENAMEAT2
#  ifndef __NR_renameat2
#    if defined __x86_64__
#      define __NR_renameat2 316
#    elif defined __arm__
#      define __NR_renameat2 382
#    elif defined __aarch64__
#      define __NR_renameat2 276
#    elif defined _MIPS_SIM
#      if _MIPS_SIM == _MIPS_SIM_ABI32
#        define __NR_renameat2 4351
#      endif
#      if _MIPS_SIM == _MIPS_SIM_NABI32
#        define __NR_renameat2 6315
#      endif
#      if _MIPS_SIM == _MIPS_SIM_ABI64
#        define __NR_renameat2 5311
#      endif
#    elif defined __i386__
#      define __NR_renameat2 353
#    elif defined __powerpc64__
#      define __NR_renameat2 357
#    elif defined __s390__ || defined __s390x__
#      define __NR_renameat2 347
#    elif defined __arc__
#      define __NR_renameat2 276
#    else
#      warning "__NR_renameat2 unknown for your architecture"
#    endif
#  endif

static inline int missing_renameat2(int oldfd, const char *oldname, int newfd, const char *newname, unsigned flags) {
#  ifdef __NR_renameat2
        return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define renameat2 missing_renameat2
#endif

/* ======================================================================= */

#if !HAVE_KCMP
static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
#  ifdef __NR_kcmp
        return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define kcmp missing_kcmp
#endif

/* ======================================================================= */

#if !HAVE_KEYCTL
static inline long missing_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) {
#  ifdef __NR_keyctl
        return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
#  else
        errno = ENOSYS;
        return -1;
#  endif

#  define keyctl missing_keyctl
}

static inline key_serial_t missing_add_key(const char *type, const char *description, const void *payload, size_t plen, key_serial_t ringid) {
#  ifdef __NR_add_key
        return syscall(__NR_add_key, type, description, payload, plen, ringid);
#  else
        errno = ENOSYS;
        return -1;
#  endif

#  define add_key missing_add_key
}

static inline key_serial_t missing_request_key(const char *type, const char *description, const char * callout_info, key_serial_t destringid) {
#  ifdef __NR_request_key
        return syscall(__NR_request_key, type, description, callout_info, destringid);
#  else
        errno = ENOSYS;
        return -1;
#  endif

#  define request_key missing_request_key
}
#endif

/* ======================================================================= */

#if !HAVE_COPY_FILE_RANGE
#  ifndef __NR_copy_file_range
#    if defined(__x86_64__)
#      define __NR_copy_file_range 326
#    elif defined(__i386__)
#      define __NR_copy_file_range 377
#    elif defined __s390__
#      define __NR_copy_file_range 375
#    elif defined __arm__
#      define __NR_copy_file_range 391
#    elif defined __aarch64__
#      define __NR_copy_file_range 285
#    elif defined __powerpc__
#      define __NR_copy_file_range 379
#    elif defined __arc__
#      define __NR_copy_file_range 285
#    else
#      warning "__NR_copy_file_range not defined for your architecture"
#    endif
#  endif

static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in,
                                              int fd_out, loff_t *off_out,
                                              size_t len,
                                              unsigned int flags) {
#  ifdef __NR_copy_file_range
        return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define copy_file_range missing_copy_file_range
#endif

/* ======================================================================= */

#if !HAVE_BPF
#  ifndef __NR_bpf
#    if defined __i386__
#      define __NR_bpf 357
#    elif defined __x86_64__
#      define __NR_bpf 321
#    elif defined __aarch64__
#      define __NR_bpf 280
#    elif defined __arm__
#      define __NR_bpf 386
#    elif defined __sparc__
#      define __NR_bpf 349
#    elif defined __s390__
#      define __NR_bpf 351
#    elif defined __tilegx__
#      define __NR_bpf 280
#    else
#      warning "__NR_bpf not defined for your architecture"
#    endif
#  endif

union bpf_attr;

static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) {
#ifdef __NR_bpf
        return (int) syscall(__NR_bpf, cmd, attr, size);
#else
        errno = ENOSYS;
        return -1;
#endif
}

#  define bpf missing_bpf
#endif

/* ======================================================================= */

#ifndef __IGNORE_pkey_mprotect
#  ifndef __NR_pkey_mprotect
#    if defined __i386__
#      define __NR_pkey_mprotect 380
#    elif defined __x86_64__
#      define __NR_pkey_mprotect 329
#    elif defined __arm__
#      define __NR_pkey_mprotect 394
#    elif defined __aarch64__
#      define __NR_pkey_mprotect 394
#    elif defined __powerpc__
#      define __NR_pkey_mprotect 386
#    elif defined _MIPS_SIM
#      if _MIPS_SIM == _MIPS_SIM_ABI32
#        define __NR_pkey_mprotect 4363
#      endif
#      if _MIPS_SIM == _MIPS_SIM_NABI32
#        define __NR_pkey_mprotect 6327
#      endif
#      if _MIPS_SIM == _MIPS_SIM_ABI64
#        define __NR_pkey_mprotect 5323
#      endif
#    else
#      warning "__NR_pkey_mprotect not defined for your architecture"
#    endif
#  endif
#endif

/* ======================================================================= */

#if !HAVE_STATX
#  ifndef __NR_statx
#    if defined __aarch64__ || defined __arm__
#      define __NR_statx 397
#    elif defined __alpha__
#      define __NR_statx 522
#    elif defined __i386__ || defined __powerpc64__
#      define __NR_statx 383
#    elif defined __sparc__
#      define __NR_statx 360
#    elif defined __x86_64__
#      define __NR_statx 332
#    else
#      warning "__NR_statx not defined for your architecture"
#    endif
#  endif

struct statx;
#endif

/* This typedef is supposed to be always defined. */
typedef struct statx struct_statx;

#if !HAVE_STATX
static inline ssize_t missing_statx(int dfd, const char *filename, unsigned flags, unsigned int mask, struct statx *buffer) {
#  ifdef __NR_statx
        return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
#  else
        errno = ENOSYS;
        return -1;
#  endif
}

#  define statx missing_statx
#endif
Commit	Line	Data
53e1b683	1	/* SPDX-License-Identifier: LGPL-2.1+ */
2f368e4a ZJS	2	#pragma once
2f368e4a ZJS	3
2f368e4a ZJS	4	/* Missing glibc definitions to access certain kernel APIs */
2f368e4a ZJS	5
36dd5ffd YW	6	#include <fcntl.h>
36dd5ffd YW	7	#include <sys/syscall.h>
71e5200f	8	#include <sys/types.h>
851d66fa YW	9	#include <unistd.h>
	10
	11	#ifdef ARCH_MIPS
	12	#include <asm/sgidefs.h>
	13	#endif
71e5200f	14
d7276b61	15	#include "missing_keyctl.h"
e01819f8	16	#include "missing_stat.h"
d7276b61	17
851d66fa YW	18	/* linux/kcmp.h */
	19	#ifndef KCMP_FILE /* 3f4994cfc15f38a3159c6e3a4b3ab2e1481a6b02 (3.19) */
	20	#define KCMP_FILE 0
	21	#endif
	22
4b9545f1	23	#if !HAVE_PIVOT_ROOT
5187dd2c	24	static inline int missing_pivot_root(const char new_root, const char put_old) {
d06f3829	25	return syscall(__NR_pivot_root, new_root, put_old);
2f368e4a	26	}
5187dd2c ZJS	27
5187dd2c ZJS	28	# define pivot_root missing_pivot_root
2f368e4a ZJS	29	#endif
	30
	31	/* ======================================================================= */
	32
4b9545f1	33	#if !HAVE_MEMFD_CREATE
2f368e4a ZJS	34	# ifndef __NR_memfd_create
	35	# if defined __x86_64__
	36	# define __NR_memfd_create 319
	37	# elif defined __arm__
	38	# define __NR_memfd_create 385
	39	# elif defined __aarch64__
	40	# define __NR_memfd_create 279
	41	# elif defined __s390__
	42	# define __NR_memfd_create 350
	43	# elif defined _MIPS_SIM
	44	# if _MIPS_SIM == _MIPS_SIM_ABI32
	45	# define __NR_memfd_create 4354
	46	# endif
	47	# if _MIPS_SIM == _MIPS_SIM_NABI32
	48	# define __NR_memfd_create 6318
	49	# endif
	50	# if _MIPS_SIM == _MIPS_SIM_ABI64
	51	# define __NR_memfd_create 5314
	52	# endif
	53	# elif defined __i386__
	54	# define __NR_memfd_create 356
27b09f1f AB	55	# elif defined __arc__
27b09f1f AB	56	# define __NR_memfd_create 279
2f368e4a ZJS	57	# else
	58	# warning "__NR_memfd_create unknown for your architecture"
	59	# endif
	60	# endif
	61
5187dd2c	62	static inline int missing_memfd_create(const char *name, unsigned int flags) {
2f368e4a ZJS	63	# ifdef __NR_memfd_create
	64	return syscall(__NR_memfd_create, name, flags);
	65	# else
	66	errno = ENOSYS;
	67	return -1;
	68	# endif
	69	}
5187dd2c ZJS	70
5187dd2c ZJS	71	# define memfd_create missing_memfd_create
2f368e4a ZJS	72	#endif
	73
	74	/* ======================================================================= */
	75
4b9545f1	76	#if !HAVE_GETRANDOM
2f368e4a ZJS	77	# ifndef __NR_getrandom
	78	# if defined __x86_64__
	79	# define __NR_getrandom 318
	80	# elif defined(__i386__)
	81	# define __NR_getrandom 355
	82	# elif defined(__arm__)
	83	# define __NR_getrandom 384
	84	# elif defined(__aarch64__)
	85	# define __NR_getrandom 278
	86	# elif defined(__ia64__)
	87	# define __NR_getrandom 1339
	88	# elif defined(__m68k__)
	89	# define __NR_getrandom 352
	90	# elif defined(__s390x__)
	91	# define __NR_getrandom 349
	92	# elif defined(__powerpc__)
	93	# define __NR_getrandom 359
	94	# elif defined _MIPS_SIM
	95	# if _MIPS_SIM == _MIPS_SIM_ABI32
	96	# define __NR_getrandom 4353
	97	# endif
	98	# if _MIPS_SIM == _MIPS_SIM_NABI32
	99	# define __NR_getrandom 6317
	100	# endif
	101	# if _MIPS_SIM == _MIPS_SIM_ABI64
	102	# define __NR_getrandom 5313
	103	# endif
27b09f1f AB	104	# elif defined(__arc__)
27b09f1f AB	105	# define __NR_getrandom 278
2f368e4a ZJS	106	# else
	107	# warning "__NR_getrandom unknown for your architecture"
	108	# endif
	109	# endif
	110
5187dd2c	111	static inline int missing_getrandom(void *buffer, size_t count, unsigned flags) {
2f368e4a ZJS	112	# ifdef __NR_getrandom
	113	return syscall(__NR_getrandom, buffer, count, flags);
	114	# else
	115	errno = ENOSYS;
	116	return -1;
	117	# endif
	118	}
5187dd2c ZJS	119
5187dd2c ZJS	120	# define getrandom missing_getrandom
2f368e4a ZJS	121	#endif
	122
	123	/* ======================================================================= */
	124
4b9545f1	125	#if !HAVE_GETTID
5187dd2c	126	static inline pid_t missing_gettid(void) {
d06f3829	127	return (pid_t) syscall(__NR_gettid);
2f368e4a	128	}
5187dd2c ZJS	129
5187dd2c ZJS	130	# define gettid missing_gettid
2f368e4a ZJS	131	#endif
	132
	133	/* ======================================================================= */
	134
4b9545f1	135	#if !HAVE_NAME_TO_HANDLE_AT
2f368e4a ZJS	136	# ifndef __NR_name_to_handle_at
	137	# if defined(__x86_64__)
	138	# define __NR_name_to_handle_at 303
	139	# elif defined(__i386__)
	140	# define __NR_name_to_handle_at 341
	141	# elif defined(__arm__)
	142	# define __NR_name_to_handle_at 370
	143	# elif defined(__powerpc__)
	144	# define __NR_name_to_handle_at 345
27b09f1f AB	145	# elif defined(__arc__)
27b09f1f AB	146	# define __NR_name_to_handle_at 264
2f368e4a ZJS	147	# else
	148	# error "__NR_name_to_handle_at is not defined"
	149	# endif
	150	# endif
	151
	152	struct file_handle {
	153	unsigned int handle_bytes;
	154	int handle_type;
	155	unsigned char f_handle[0];
	156	};
	157
5187dd2c	158	static inline int missing_name_to_handle_at(int fd, const char name, struct file_handle handle, int *mnt_id, int flags) {
2f368e4a ZJS	159	# ifdef __NR_name_to_handle_at
	160	return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
	161	# else
	162	errno = ENOSYS;
	163	return -1;
	164	# endif
	165	}
5187dd2c ZJS	166
5187dd2c ZJS	167	# define name_to_handle_at missing_name_to_handle_at
2f368e4a ZJS	168	#endif
	169
	170	/* ======================================================================= */
	171
4b9545f1	172	#if !HAVE_SETNS
2f368e4a ZJS	173	# ifndef __NR_setns
	174	# if defined(__x86_64__)
	175	# define __NR_setns 308
	176	# elif defined(__i386__)
	177	# define __NR_setns 346
27b09f1f AB	178	# elif defined(__arc__)
27b09f1f AB	179	# define __NR_setns 268
2f368e4a ZJS	180	# else
	181	# error "__NR_setns is not defined"
	182	# endif
	183	# endif
	184
5187dd2c	185	static inline int missing_setns(int fd, int nstype) {
2f368e4a ZJS	186	# ifdef __NR_setns
	187	return syscall(__NR_setns, fd, nstype);
	188	# else
	189	errno = ENOSYS;
	190	return -1;
	191	# endif
	192	}
5187dd2c ZJS	193
5187dd2c ZJS	194	# define setns missing_setns
2f368e4a ZJS	195	#endif
	196
	197	/* ======================================================================= */
	198
2f368e4a ZJS	199	static inline pid_t raw_getpid(void) {
	200	#if defined(__alpha__)
	201	return (pid_t) syscall(__NR_getxpid);
	202	#else
	203	return (pid_t) syscall(__NR_getpid);
	204	#endif
	205	}
	206
	207	/* ======================================================================= */
	208
4b9545f1	209	#if !HAVE_RENAMEAT2
2f368e4a ZJS	210	# ifndef __NR_renameat2
	211	# if defined __x86_64__
	212	# define __NR_renameat2 316
	213	# elif defined __arm__
	214	# define __NR_renameat2 382
925c81cd LP	215	# elif defined __aarch64__
925c81cd LP	216	# define __NR_renameat2 276
2f368e4a ZJS	217	# elif defined _MIPS_SIM
	218	# if _MIPS_SIM == _MIPS_SIM_ABI32
	219	# define __NR_renameat2 4351
	220	# endif
	221	# if _MIPS_SIM == _MIPS_SIM_NABI32
	222	# define __NR_renameat2 6315
	223	# endif
	224	# if _MIPS_SIM == _MIPS_SIM_ABI64
	225	# define __NR_renameat2 5311
	226	# endif
	227	# elif defined __i386__
	228	# define __NR_renameat2 353
92369d5e ZJS	229	# elif defined __powerpc64__
	230	# define __NR_renameat2 357
	231	# elif defined __s390__ \|\| defined __s390x__
	232	# define __NR_renameat2 347
27b09f1f AB	233	# elif defined __arc__
27b09f1f AB	234	# define __NR_renameat2 276
2f368e4a ZJS	235	# else
	236	# warning "__NR_renameat2 unknown for your architecture"
	237	# endif
	238	# endif
	239
5187dd2c	240	static inline int missing_renameat2(int oldfd, const char oldname, int newfd, const char newname, unsigned flags) {
2f368e4a ZJS	241	# ifdef __NR_renameat2
	242	return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
	243	# else
	244	errno = ENOSYS;
	245	return -1;
	246	# endif
	247	}
5187dd2c ZJS	248
5187dd2c ZJS	249	# define renameat2 missing_renameat2
2f368e4a ZJS	250	#endif
	251
	252	/* ======================================================================= */
	253
4b9545f1	254	#if !HAVE_KCMP
5187dd2c	255	static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
2f368e4a ZJS	256	# ifdef __NR_kcmp
	257	return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
	258	# else
	259	errno = ENOSYS;
	260	return -1;
	261	# endif
	262	}
5187dd2c ZJS	263
5187dd2c ZJS	264	# define kcmp missing_kcmp
2f368e4a ZJS	265	#endif
	266
	267	/* ======================================================================= */
	268
4b9545f1	269	#if !HAVE_KEYCTL
851d66fa	270	static inline long missing_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) {
2f368e4a ZJS	271	# ifdef __NR_keyctl
	272	return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
	273	# else
	274	errno = ENOSYS;
	275	return -1;
	276	# endif
5187dd2c ZJS	277
5187dd2c ZJS	278	# define keyctl missing_keyctl
2f368e4a ZJS	279	}
2f368e4a ZJS	280
5187dd2c	281	static inline key_serial_t missing_add_key(const char type, const char description, const void *payload, size_t plen, key_serial_t ringid) {
2f368e4a ZJS	282	# ifdef __NR_add_key
	283	return syscall(__NR_add_key, type, description, payload, plen, ringid);
	284	# else
	285	errno = ENOSYS;
	286	return -1;
	287	# endif
5187dd2c ZJS	288
5187dd2c ZJS	289	# define add_key missing_add_key
2f368e4a ZJS	290	}
2f368e4a ZJS	291
5187dd2c	292	static inline key_serial_t missing_request_key(const char type, const char description, const char * callout_info, key_serial_t destringid) {
2f368e4a ZJS	293	# ifdef __NR_request_key
	294	return syscall(__NR_request_key, type, description, callout_info, destringid);
	295	# else
	296	errno = ENOSYS;
	297	return -1;
	298	# endif
5187dd2c ZJS	299
5187dd2c ZJS	300	# define request_key missing_request_key
2f368e4a ZJS	301	}
	302	#endif
	303
	304	/* ======================================================================= */
	305
4b9545f1	306	#if !HAVE_COPY_FILE_RANGE
2f368e4a ZJS	307	# ifndef __NR_copy_file_range
	308	# if defined(__x86_64__)
	309	# define __NR_copy_file_range 326
	310	# elif defined(__i386__)
	311	# define __NR_copy_file_range 377
	312	# elif defined __s390__
	313	# define __NR_copy_file_range 375
	314	# elif defined __arm__
	315	# define __NR_copy_file_range 391
	316	# elif defined __aarch64__
	317	# define __NR_copy_file_range 285
4d07c8d3 AIB	318	# elif defined __powerpc__
4d07c8d3 AIB	319	# define __NR_copy_file_range 379
27b09f1f AB	320	# elif defined __arc__
27b09f1f AB	321	# define __NR_copy_file_range 285
2f368e4a ZJS	322	# else
	323	# warning "__NR_copy_file_range not defined for your architecture"
	324	# endif
	325	# endif
	326
5187dd2c ZJS	327	static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in,
	328	int fd_out, loff_t *off_out,
	329	size_t len,
	330	unsigned int flags) {
2f368e4a ZJS	331	# ifdef __NR_copy_file_range
	332	return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
	333	# else
	334	errno = ENOSYS;
	335	return -1;
	336	# endif
	337	}
5187dd2c ZJS	338
5187dd2c ZJS	339	# define copy_file_range missing_copy_file_range
2f368e4a	340	#endif
71e5200f	341
213f2883 ZJS	342	/* ======================================================================= */
213f2883 ZJS	343
4b9545f1	344	#if !HAVE_BPF
71e5200f DM	345	# ifndef __NR_bpf
	346	# if defined __i386__
	347	# define __NR_bpf 357
	348	# elif defined __x86_64__
	349	# define __NR_bpf 321
	350	# elif defined __aarch64__
	351	# define __NR_bpf 280
d07ba5d7 HCNE	352	# elif defined __arm__
d07ba5d7 HCNE	353	# define __NR_bpf 386
71e5200f DM	354	# elif defined __sparc__
	355	# define __NR_bpf 349
	356	# elif defined __s390__
	357	# define __NR_bpf 351
66ffb275 HCNE	358	# elif defined __tilegx__
66ffb275 HCNE	359	# define __NR_bpf 280
71e5200f DM	360	# else
	361	# warning "__NR_bpf not defined for your architecture"
	362	# endif
	363	# endif
	364
	365	union bpf_attr;
	366
5187dd2c	367	static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) {
71e5200f DM	368	#ifdef __NR_bpf
	369	return (int) syscall(__NR_bpf, cmd, attr, size);
	370	#else
	371	errno = ENOSYS;
	372	return -1;
	373	#endif
	374	}
	375
5187dd2c	376	# define bpf missing_bpf
71e5200f	377	#endif
213f2883 ZJS	378
	379	/* ======================================================================= */
	380
	381	#ifndef __IGNORE_pkey_mprotect
	382	# ifndef __NR_pkey_mprotect
	383	# if defined __i386__
	384	# define __NR_pkey_mprotect 380
	385	# elif defined __x86_64__
	386	# define __NR_pkey_mprotect 329
	387	# elif defined __arm__
	388	# define __NR_pkey_mprotect 394
	389	# elif defined __aarch64__
	390	# define __NR_pkey_mprotect 394
033c8366 ZJS	391	# elif defined __powerpc__
033c8366 ZJS	392	# define __NR_pkey_mprotect 386
213f2883 ZJS	393	# elif defined _MIPS_SIM
	394	# if _MIPS_SIM == _MIPS_SIM_ABI32
	395	# define __NR_pkey_mprotect 4363
	396	# endif
	397	# if _MIPS_SIM == _MIPS_SIM_NABI32
	398	# define __NR_pkey_mprotect 6327
	399	# endif
	400	# if _MIPS_SIM == _MIPS_SIM_ABI64
	401	# define __NR_pkey_mprotect 5323
	402	# endif
9c6888ac	403	# else
213f2883 ZJS	404	# warning "__NR_pkey_mprotect not defined for your architecture"
	405	# endif
	406	# endif
	407	#endif
4c2e1b39	408
5187dd2c ZJS	409	/* ======================================================================= */
5187dd2c ZJS	410
4c2e1b39 LP	411	#if !HAVE_STATX
4c2e1b39 LP	412	# ifndef __NR_statx
773c8434 AD	413	# if defined __aarch64__ \|\| defined __arm__
	414	# define __NR_statx 397
	415	# elif defined __alpha__
	416	# define __NR_statx 522
	417	# elif defined __i386__ \|\| defined __powerpc64__
fd91e3ef	418	# define __NR_statx 383
773c8434 AD	419	# elif defined __sparc__
773c8434 AD	420	# define __NR_statx 360
4c2e1b39	421	# elif defined __x86_64__
fd91e3ef	422	# define __NR_statx 332
4c2e1b39 LP	423	# else
	424	# warning "__NR_statx not defined for your architecture"
	425	# endif
	426	# endif
	427
	428	struct statx;
5187dd2c ZJS	429	#endif
	430
	431	/* This typedef is supposed to be always defined. */
	432	typedef struct statx struct_statx;
4c2e1b39	433
5187dd2c ZJS	434	#if !HAVE_STATX
5187dd2c ZJS	435	static inline ssize_t missing_statx(int dfd, const char filename, unsigned flags, unsigned int mask, struct statx buffer) {
4c2e1b39 LP	436	# ifdef __NR_statx
	437	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
	438	# else
	439	errno = ENOSYS;
	440	return -1;
	441	# endif
	442	}
5187dd2c ZJS	443
5187dd2c ZJS	444	# define statx missing_statx
4c2e1b39	445	#endif