Systemd/src/basic/missing_syscall.h
Michal Sekletar b070c7c0e1 core: introduce NUMAPolicy and NUMAMask options
Make possible to set NUMA allocation policy for manager. Manager's
policy is by default inherited to all forked off processes. However, it
is possible to override the policy on per-service basis. Currently we
support, these policies: default, prefer, bind, interleave, local.
See man 2 set_mempolicy for details on each policy.

Overall NUMA policy actually consists of two parts. Policy itself and
bitmask representing NUMA nodes where is policy effective. Node mask can
be specified using related option, NUMAMask. Default mask can be
overwritten on per-service level.
2019-06-24 16:58:54 +02:00

490 lines
13 KiB
C

/* 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 _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