| /* SPDX-License-Identifier: LGPL-2.1+ */ |
| #pragma once |
| |
| /* Missing glibc definitions to access certain kernel APIs */ |
| |
| #include <sys/types.h> |
| |
| #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 |