[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
#  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 __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
#  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

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