[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 <errno.h>
#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
#  if ! (defined __NR_memfd_create && __NR_memfd_create > 0)
#    if defined __NR_memfd_create
#      undef __NR_memfd_create
#    endif
#    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
#  if ! (defined __NR_getrandom && __NR_getrandom > 0)
#    if defined __NR_getrandom
#      undef __NR_getrandom
#    endif
#    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
#  if ! (defined __NR_name_to_handle_at && __NR_name_to_handle_at > 0)
#    if defined __NR_name_to_handle_at
#      undef __NR_name_to_handle_at
#    endif
#    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
#  if ! (defined __NR_setns && __NR_setns > 0)
#    if defined __NR_setns
#      undef __NR_setns
#    endif
#    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
#  if ! (defined __NR_renameat2 && __NR_renameat2 > 0)
#    if defined __NR_renameat2
#      undef __NR_renameat2
#    endif
#    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
#  if ! (defined __NR_copy_file_range && __NR_copy_file_range > 0)
#    if defined __NR_copy_file_range
#      undef __NR_copy_file_range
#    endif
#    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
#  if ! (defined __NR_bpf && __NR_bpf > 0)
#    if defined __NR_bpf
#      undef __NR_bpf
#    endif
#    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
#  if ! (defined __NR_pkey_mprotect && __NR_pkey_mprotect > 0)
#    if defined __NR_pkey_mprotect
#      undef __NR_pkey_mprotect
#    endif
#    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 __s390__
#      define __NR_pkey_mprotect 384
#    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
#  if ! (defined __NR_statx && __NR_statx > 0)
#    if defined __NR_statx
#      undef __NR_statx
#    endif
#    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

#if !HAVE_SET_MEMPOLICY

enum {
        MPOL_DEFAULT,
        MPOL_PREFERRED,
        MPOL_BIND,
        MPOL_INTERLEAVE,
        MPOL_LOCAL,
};

static inline long missing_set_mempolicy(int mode, const unsigned long *nodemask,
                           unsigned long maxnode) {
        long i;
#  ifdef __NR_set_mempolicy
        i = syscall(__NR_set_mempolicy, mode, nodemask, maxnode);
#  else
        errno = ENOSYS;
        i = -1;
#  endif
        return i;
}

#  define set_mempolicy missing_set_mempolicy
#endif

#if !HAVE_GET_MEMPOLICY
static inline long missing_get_mempolicy(int *mode, unsigned long *nodemask,
                           unsigned long maxnode, void *addr,
                           unsigned long flags) {
        long i;
#  ifdef __NR_get_mempolicy
        i = syscall(__NR_get_mempolicy, mode, nodemask, maxnode, addr, flags);
#  else
        errno = ENOSYS;
        i = -1;
#  endif
        return i;
}

#define get_mempolicy missing_get_mempolicy
#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
e2d94d0c	6	#include <errno.h>
36dd5ffd YW	7	#include <fcntl.h>
36dd5ffd YW	8	#include <sys/syscall.h>
71e5200f	9	#include <sys/types.h>
851d66fa YW	10	#include <unistd.h>
	11
	12	#ifdef ARCH_MIPS
	13	#include <asm/sgidefs.h>
	14	#endif
71e5200f	15
d7276b61	16	#include "missing_keyctl.h"
e01819f8	17	#include "missing_stat.h"
d7276b61	18
851d66fa YW	19	/* linux/kcmp.h */
	20	#ifndef KCMP_FILE /* 3f4994cfc15f38a3159c6e3a4b3ab2e1481a6b02 (3.19) */
	21	#define KCMP_FILE 0
	22	#endif
	23
4b9545f1	24	#if !HAVE_PIVOT_ROOT
5187dd2c	25	static inline int missing_pivot_root(const char new_root, const char put_old) {
d06f3829	26	return syscall(__NR_pivot_root, new_root, put_old);
2f368e4a	27	}
5187dd2c ZJS	28
5187dd2c ZJS	29	# define pivot_root missing_pivot_root
2f368e4a ZJS	30	#endif
	31
	32	/* ======================================================================= */
	33
4b9545f1	34	#if !HAVE_MEMFD_CREATE
59b65729 DS	35	# if ! (defined __NR_memfd_create && __NR_memfd_create > 0)
	36	# if defined __NR_memfd_create
	37	# undef __NR_memfd_create
	38	# endif
2f368e4a ZJS	39	# if defined __x86_64__
	40	# define __NR_memfd_create 319
	41	# elif defined __arm__
	42	# define __NR_memfd_create 385
	43	# elif defined __aarch64__
	44	# define __NR_memfd_create 279
	45	# elif defined __s390__
	46	# define __NR_memfd_create 350
	47	# elif defined _MIPS_SIM
	48	# if _MIPS_SIM == _MIPS_SIM_ABI32
	49	# define __NR_memfd_create 4354
	50	# endif
	51	# if _MIPS_SIM == _MIPS_SIM_NABI32
	52	# define __NR_memfd_create 6318
	53	# endif
	54	# if _MIPS_SIM == _MIPS_SIM_ABI64
	55	# define __NR_memfd_create 5314
	56	# endif
	57	# elif defined __i386__
	58	# define __NR_memfd_create 356
27b09f1f AB	59	# elif defined __arc__
27b09f1f AB	60	# define __NR_memfd_create 279
2f368e4a ZJS	61	# else
	62	# warning "__NR_memfd_create unknown for your architecture"
	63	# endif
	64	# endif
	65
5187dd2c	66	static inline int missing_memfd_create(const char *name, unsigned int flags) {
2f368e4a ZJS	67	# ifdef __NR_memfd_create
	68	return syscall(__NR_memfd_create, name, flags);
	69	# else
	70	errno = ENOSYS;
	71	return -1;
	72	# endif
	73	}
5187dd2c ZJS	74
5187dd2c ZJS	75	# define memfd_create missing_memfd_create
2f368e4a ZJS	76	#endif
	77
	78	/* ======================================================================= */
	79
4b9545f1	80	#if !HAVE_GETRANDOM
59b65729 DS	81	# if ! (defined __NR_getrandom && __NR_getrandom > 0)
	82	# if defined __NR_getrandom
	83	# undef __NR_getrandom
	84	# endif
2f368e4a ZJS	85	# if defined __x86_64__
	86	# define __NR_getrandom 318
	87	# elif defined(__i386__)
	88	# define __NR_getrandom 355
	89	# elif defined(__arm__)
	90	# define __NR_getrandom 384
	91	# elif defined(__aarch64__)
	92	# define __NR_getrandom 278
	93	# elif defined(__ia64__)
	94	# define __NR_getrandom 1339
	95	# elif defined(__m68k__)
	96	# define __NR_getrandom 352
	97	# elif defined(__s390x__)
	98	# define __NR_getrandom 349
	99	# elif defined(__powerpc__)
	100	# define __NR_getrandom 359
	101	# elif defined _MIPS_SIM
	102	# if _MIPS_SIM == _MIPS_SIM_ABI32
	103	# define __NR_getrandom 4353
	104	# endif
	105	# if _MIPS_SIM == _MIPS_SIM_NABI32
	106	# define __NR_getrandom 6317
	107	# endif
	108	# if _MIPS_SIM == _MIPS_SIM_ABI64
	109	# define __NR_getrandom 5313
	110	# endif
27b09f1f AB	111	# elif defined(__arc__)
27b09f1f AB	112	# define __NR_getrandom 278
2f368e4a ZJS	113	# else
	114	# warning "__NR_getrandom unknown for your architecture"
	115	# endif
	116	# endif
	117
5187dd2c	118	static inline int missing_getrandom(void *buffer, size_t count, unsigned flags) {
2f368e4a ZJS	119	# ifdef __NR_getrandom
	120	return syscall(__NR_getrandom, buffer, count, flags);
	121	# else
	122	errno = ENOSYS;
	123	return -1;
	124	# endif
	125	}
5187dd2c ZJS	126
5187dd2c ZJS	127	# define getrandom missing_getrandom
2f368e4a ZJS	128	#endif
	129
	130	/* ======================================================================= */
	131
4b9545f1	132	#if !HAVE_GETTID
5187dd2c	133	static inline pid_t missing_gettid(void) {
d06f3829	134	return (pid_t) syscall(__NR_gettid);
2f368e4a	135	}
5187dd2c ZJS	136
5187dd2c ZJS	137	# define gettid missing_gettid
2f368e4a ZJS	138	#endif
	139
	140	/* ======================================================================= */
	141
4b9545f1	142	#if !HAVE_NAME_TO_HANDLE_AT
59b65729 DS	143	# if ! (defined __NR_name_to_handle_at && __NR_name_to_handle_at > 0)
	144	# if defined __NR_name_to_handle_at
	145	# undef __NR_name_to_handle_at
	146	# endif
2f368e4a ZJS	147	# if defined(__x86_64__)
	148	# define __NR_name_to_handle_at 303
	149	# elif defined(__i386__)
	150	# define __NR_name_to_handle_at 341
	151	# elif defined(__arm__)
	152	# define __NR_name_to_handle_at 370
	153	# elif defined(__powerpc__)
	154	# define __NR_name_to_handle_at 345
27b09f1f AB	155	# elif defined(__arc__)
27b09f1f AB	156	# define __NR_name_to_handle_at 264
2f368e4a ZJS	157	# else
	158	# error "__NR_name_to_handle_at is not defined"
	159	# endif
	160	# endif
	161
	162	struct file_handle {
	163	unsigned int handle_bytes;
	164	int handle_type;
	165	unsigned char f_handle[0];
	166	};
	167
5187dd2c	168	static inline int missing_name_to_handle_at(int fd, const char name, struct file_handle handle, int *mnt_id, int flags) {
2f368e4a ZJS	169	# ifdef __NR_name_to_handle_at
	170	return syscall(__NR_name_to_handle_at, fd, name, handle, mnt_id, flags);
	171	# else
	172	errno = ENOSYS;
	173	return -1;
	174	# endif
	175	}
5187dd2c ZJS	176
5187dd2c ZJS	177	# define name_to_handle_at missing_name_to_handle_at
2f368e4a ZJS	178	#endif
	179
	180	/* ======================================================================= */
	181
4b9545f1	182	#if !HAVE_SETNS
59b65729 DS	183	# if ! (defined __NR_setns && __NR_setns > 0)
	184	# if defined __NR_setns
	185	# undef __NR_setns
	186	# endif
2f368e4a ZJS	187	# if defined(__x86_64__)
	188	# define __NR_setns 308
	189	# elif defined(__i386__)
	190	# define __NR_setns 346
27b09f1f AB	191	# elif defined(__arc__)
27b09f1f AB	192	# define __NR_setns 268
2f368e4a ZJS	193	# else
	194	# error "__NR_setns is not defined"
	195	# endif
	196	# endif
	197
5187dd2c	198	static inline int missing_setns(int fd, int nstype) {
2f368e4a ZJS	199	# ifdef __NR_setns
	200	return syscall(__NR_setns, fd, nstype);
	201	# else
	202	errno = ENOSYS;
	203	return -1;
	204	# endif
	205	}
5187dd2c ZJS	206
5187dd2c ZJS	207	# define setns missing_setns
2f368e4a ZJS	208	#endif
	209
	210	/* ======================================================================= */
	211
2f368e4a ZJS	212	static inline pid_t raw_getpid(void) {
	213	#if defined(__alpha__)
	214	return (pid_t) syscall(__NR_getxpid);
	215	#else
	216	return (pid_t) syscall(__NR_getpid);
	217	#endif
	218	}
	219
	220	/* ======================================================================= */
	221
4b9545f1	222	#if !HAVE_RENAMEAT2
59b65729 DS	223	# if ! (defined __NR_renameat2 && __NR_renameat2 > 0)
	224	# if defined __NR_renameat2
	225	# undef __NR_renameat2
	226	# endif
2f368e4a ZJS	227	# if defined __x86_64__
	228	# define __NR_renameat2 316
	229	# elif defined __arm__
	230	# define __NR_renameat2 382
925c81cd LP	231	# elif defined __aarch64__
925c81cd LP	232	# define __NR_renameat2 276
2f368e4a ZJS	233	# elif defined _MIPS_SIM
	234	# if _MIPS_SIM == _MIPS_SIM_ABI32
	235	# define __NR_renameat2 4351
	236	# endif
	237	# if _MIPS_SIM == _MIPS_SIM_NABI32
	238	# define __NR_renameat2 6315
	239	# endif
	240	# if _MIPS_SIM == _MIPS_SIM_ABI64
	241	# define __NR_renameat2 5311
	242	# endif
	243	# elif defined __i386__
	244	# define __NR_renameat2 353
92369d5e ZJS	245	# elif defined __powerpc64__
	246	# define __NR_renameat2 357
	247	# elif defined __s390__ \|\| defined __s390x__
	248	# define __NR_renameat2 347
27b09f1f AB	249	# elif defined __arc__
27b09f1f AB	250	# define __NR_renameat2 276
2f368e4a ZJS	251	# else
	252	# warning "__NR_renameat2 unknown for your architecture"
	253	# endif
	254	# endif
	255
5187dd2c	256	static inline int missing_renameat2(int oldfd, const char oldname, int newfd, const char newname, unsigned flags) {
2f368e4a ZJS	257	# ifdef __NR_renameat2
	258	return syscall(__NR_renameat2, oldfd, oldname, newfd, newname, flags);
	259	# else
	260	errno = ENOSYS;
	261	return -1;
	262	# endif
	263	}
5187dd2c ZJS	264
5187dd2c ZJS	265	# define renameat2 missing_renameat2
2f368e4a ZJS	266	#endif
	267
	268	/* ======================================================================= */
	269
4b9545f1	270	#if !HAVE_KCMP
5187dd2c	271	static inline int missing_kcmp(pid_t pid1, pid_t pid2, int type, unsigned long idx1, unsigned long idx2) {
2f368e4a ZJS	272	# ifdef __NR_kcmp
	273	return syscall(__NR_kcmp, pid1, pid2, type, idx1, idx2);
	274	# else
	275	errno = ENOSYS;
	276	return -1;
	277	# endif
	278	}
5187dd2c ZJS	279
5187dd2c ZJS	280	# define kcmp missing_kcmp
2f368e4a ZJS	281	#endif
	282
	283	/* ======================================================================= */
	284
4b9545f1	285	#if !HAVE_KEYCTL
851d66fa	286	static inline long missing_keyctl(int cmd, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) {
2f368e4a ZJS	287	# ifdef __NR_keyctl
	288	return syscall(__NR_keyctl, cmd, arg2, arg3, arg4, arg5);
	289	# else
	290	errno = ENOSYS;
	291	return -1;
	292	# endif
5187dd2c ZJS	293
5187dd2c ZJS	294	# define keyctl missing_keyctl
2f368e4a ZJS	295	}
2f368e4a ZJS	296
5187dd2c	297	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	298	# ifdef __NR_add_key
	299	return syscall(__NR_add_key, type, description, payload, plen, ringid);
	300	# else
	301	errno = ENOSYS;
	302	return -1;
	303	# endif
5187dd2c ZJS	304
5187dd2c ZJS	305	# define add_key missing_add_key
2f368e4a ZJS	306	}
2f368e4a ZJS	307
5187dd2c	308	static inline key_serial_t missing_request_key(const char type, const char description, const char * callout_info, key_serial_t destringid) {
2f368e4a ZJS	309	# ifdef __NR_request_key
	310	return syscall(__NR_request_key, type, description, callout_info, destringid);
	311	# else
	312	errno = ENOSYS;
	313	return -1;
	314	# endif
5187dd2c ZJS	315
5187dd2c ZJS	316	# define request_key missing_request_key
2f368e4a ZJS	317	}
	318	#endif
	319
	320	/* ======================================================================= */
	321
4b9545f1	322	#if !HAVE_COPY_FILE_RANGE
59b65729 DS	323	# if ! (defined __NR_copy_file_range && __NR_copy_file_range > 0)
	324	# if defined __NR_copy_file_range
	325	# undef __NR_copy_file_range
	326	# endif
2f368e4a ZJS	327	# if defined(__x86_64__)
	328	# define __NR_copy_file_range 326
	329	# elif defined(__i386__)
	330	# define __NR_copy_file_range 377
	331	# elif defined __s390__
	332	# define __NR_copy_file_range 375
	333	# elif defined __arm__
	334	# define __NR_copy_file_range 391
	335	# elif defined __aarch64__
	336	# define __NR_copy_file_range 285
4d07c8d3 AIB	337	# elif defined __powerpc__
4d07c8d3 AIB	338	# define __NR_copy_file_range 379
27b09f1f AB	339	# elif defined __arc__
27b09f1f AB	340	# define __NR_copy_file_range 285
2f368e4a ZJS	341	# else
	342	# warning "__NR_copy_file_range not defined for your architecture"
	343	# endif
	344	# endif
	345
5187dd2c ZJS	346	static inline ssize_t missing_copy_file_range(int fd_in, loff_t *off_in,
	347	int fd_out, loff_t *off_out,
	348	size_t len,
	349	unsigned int flags) {
2f368e4a ZJS	350	# ifdef __NR_copy_file_range
	351	return syscall(__NR_copy_file_range, fd_in, off_in, fd_out, off_out, len, flags);
	352	# else
	353	errno = ENOSYS;
	354	return -1;
	355	# endif
	356	}
5187dd2c ZJS	357
5187dd2c ZJS	358	# define copy_file_range missing_copy_file_range
2f368e4a	359	#endif
71e5200f	360
213f2883 ZJS	361	/* ======================================================================= */
213f2883 ZJS	362
4b9545f1	363	#if !HAVE_BPF
59b65729 DS	364	# if ! (defined __NR_bpf && __NR_bpf > 0)
	365	# if defined __NR_bpf
	366	# undef __NR_bpf
	367	# endif
71e5200f DM	368	# if defined __i386__
	369	# define __NR_bpf 357
	370	# elif defined __x86_64__
	371	# define __NR_bpf 321
	372	# elif defined __aarch64__
	373	# define __NR_bpf 280
d07ba5d7 HCNE	374	# elif defined __arm__
d07ba5d7 HCNE	375	# define __NR_bpf 386
71e5200f DM	376	# elif defined __sparc__
	377	# define __NR_bpf 349
	378	# elif defined __s390__
	379	# define __NR_bpf 351
66ffb275 HCNE	380	# elif defined __tilegx__
66ffb275 HCNE	381	# define __NR_bpf 280
71e5200f DM	382	# else
	383	# warning "__NR_bpf not defined for your architecture"
	384	# endif
	385	# endif
	386
	387	union bpf_attr;
	388
5187dd2c	389	static inline int missing_bpf(int cmd, union bpf_attr *attr, size_t size) {
71e5200f DM	390	#ifdef __NR_bpf
	391	return (int) syscall(__NR_bpf, cmd, attr, size);
	392	#else
	393	errno = ENOSYS;
	394	return -1;
	395	#endif
	396	}
	397
5187dd2c	398	# define bpf missing_bpf
71e5200f	399	#endif
213f2883 ZJS	400
	401	/* ======================================================================= */
	402
	403	#ifndef __IGNORE_pkey_mprotect
59b65729 DS	404	# if ! (defined __NR_pkey_mprotect && __NR_pkey_mprotect > 0)
	405	# if defined __NR_pkey_mprotect
	406	# undef __NR_pkey_mprotect
	407	# endif
213f2883 ZJS	408	# if defined __i386__
	409	# define __NR_pkey_mprotect 380
	410	# elif defined __x86_64__
	411	# define __NR_pkey_mprotect 329
	412	# elif defined __arm__
	413	# define __NR_pkey_mprotect 394
	414	# elif defined __aarch64__
	415	# define __NR_pkey_mprotect 394
033c8366 ZJS	416	# elif defined __powerpc__
033c8366 ZJS	417	# define __NR_pkey_mprotect 386
4f6d0cf8 DS	418	# elif defined __s390__
4f6d0cf8 DS	419	# define __NR_pkey_mprotect 384
213f2883 ZJS	420	# elif defined _MIPS_SIM
	421	# if _MIPS_SIM == _MIPS_SIM_ABI32
	422	# define __NR_pkey_mprotect 4363
	423	# endif
	424	# if _MIPS_SIM == _MIPS_SIM_NABI32
	425	# define __NR_pkey_mprotect 6327
	426	# endif
	427	# if _MIPS_SIM == _MIPS_SIM_ABI64
	428	# define __NR_pkey_mprotect 5323
	429	# endif
9c6888ac	430	# else
213f2883 ZJS	431	# warning "__NR_pkey_mprotect not defined for your architecture"
	432	# endif
	433	# endif
	434	#endif
4c2e1b39	435
5187dd2c ZJS	436	/* ======================================================================= */
5187dd2c ZJS	437
4c2e1b39	438	#if !HAVE_STATX
59b65729 DS	439	# if ! (defined __NR_statx && __NR_statx > 0)
	440	# if defined __NR_statx
	441	# undef __NR_statx
	442	# endif
773c8434 AD	443	# if defined __aarch64__ \|\| defined __arm__
	444	# define __NR_statx 397
	445	# elif defined __alpha__
	446	# define __NR_statx 522
	447	# elif defined __i386__ \|\| defined __powerpc64__
fd91e3ef	448	# define __NR_statx 383
773c8434 AD	449	# elif defined __sparc__
773c8434 AD	450	# define __NR_statx 360
4c2e1b39	451	# elif defined __x86_64__
fd91e3ef	452	# define __NR_statx 332
4c2e1b39 LP	453	# else
	454	# warning "__NR_statx not defined for your architecture"
	455	# endif
	456	# endif
	457
	458	struct statx;
5187dd2c ZJS	459	#endif
	460
	461	/* This typedef is supposed to be always defined. */
	462	typedef struct statx struct_statx;
4c2e1b39	463
5187dd2c ZJS	464	#if !HAVE_STATX
5187dd2c ZJS	465	static inline ssize_t missing_statx(int dfd, const char filename, unsigned flags, unsigned int mask, struct statx buffer) {
4c2e1b39 LP	466	# ifdef __NR_statx
	467	return syscall(__NR_statx, dfd, filename, flags, mask, buffer);
	468	# else
	469	errno = ENOSYS;
	470	return -1;
	471	# endif
	472	}
5187dd2c ZJS	473
5187dd2c ZJS	474	# define statx missing_statx
4c2e1b39	475	#endif
b070c7c0 MS	476
	477	#if !HAVE_SET_MEMPOLICY
	478
	479	enum {
	480	MPOL_DEFAULT,
	481	MPOL_PREFERRED,
	482	MPOL_BIND,
	483	MPOL_INTERLEAVE,
	484	MPOL_LOCAL,
	485	};
	486
	487	static inline long missing_set_mempolicy(int mode, const unsigned long *nodemask,
	488	unsigned long maxnode) {
	489	long i;
	490	# ifdef __NR_set_mempolicy
	491	i = syscall(__NR_set_mempolicy, mode, nodemask, maxnode);
	492	# else
	493	errno = ENOSYS;
	494	i = -1;
	495	# endif
	496	return i;
	497	}
	498
	499	# define set_mempolicy missing_set_mempolicy
	500	#endif
	501
b070c7c0 MS	502	#if !HAVE_GET_MEMPOLICY
	503	static inline long missing_get_mempolicy(int mode, unsigned long nodemask,
	504	unsigned long maxnode, void *addr,
	505	unsigned long flags) {
	506	long i;
	507	# ifdef __NR_get_mempolicy
	508	i = syscall(__NR_get_mempolicy, mode, nodemask, maxnode, addr, flags);
	509	# else
	510	errno = ENOSYS;
	511	i = -1;
	512	# endif
	513	return i;
	514	}
	515
	516	#define get_mempolicy missing_get_mempolicy
	517	#endif