mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
ARC: Linux Syscall Interface
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
This commit is contained in:
parent
3ab8611a22
commit
add5071a5c
298
sysdeps/unix/sysv/linux/arc/arch-syscall.h
Normal file
298
sysdeps/unix/sysv/linux/arc/arch-syscall.h
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@ -0,0 +1,298 @@
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/* AUTOGENERATED by update-syscall-lists.py. */
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#define __NR_accept 202
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#define __NR_accept4 242
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#define __NR_acct 89
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#define __NR_add_key 217
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#define __NR_adjtimex 171
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#define __NR_arc_gettls 246
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#define __NR_arc_settls 245
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#define __NR_arc_usr_cmpxchg 248
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#define __NR_bind 200
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#define __NR_bpf 280
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#define __NR_brk 214
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#define __NR_cacheflush 244
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#define __NR_capget 90
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#define __NR_capset 91
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#define __NR_chdir 49
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#define __NR_chroot 51
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#define __NR_clock_adjtime64 405
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#define __NR_clock_getres_time64 406
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#define __NR_clock_gettime64 403
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#define __NR_clock_nanosleep_time64 407
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#define __NR_clock_settime64 404
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#define __NR_clone 220
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#define __NR_clone3 435
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||||
#define __NR_close 57
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#define __NR_connect 203
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#define __NR_copy_file_range 285
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#define __NR_delete_module 106
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#define __NR_dup 23
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#define __NR_dup3 24
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#define __NR_epoll_create1 20
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#define __NR_epoll_ctl 21
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#define __NR_epoll_pwait 22
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#define __NR_eventfd2 19
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#define __NR_execve 221
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#define __NR_execveat 281
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#define __NR_exit 93
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#define __NR_exit_group 94
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#define __NR_faccessat 48
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#define __NR_fadvise64_64 223
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#define __NR_fallocate 47
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#define __NR_fanotify_init 262
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#define __NR_fanotify_mark 263
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#define __NR_fchdir 50
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#define __NR_fchmod 52
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#define __NR_fchmodat 53
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#define __NR_fchown 55
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#define __NR_fchownat 54
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#define __NR_fcntl64 25
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#define __NR_fdatasync 83
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#define __NR_fgetxattr 10
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#define __NR_finit_module 273
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#define __NR_flistxattr 13
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#define __NR_flock 32
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#define __NR_fremovexattr 16
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#define __NR_fsconfig 431
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#define __NR_fsetxattr 7
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#define __NR_fsmount 432
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#define __NR_fsopen 430
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#define __NR_fspick 433
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#define __NR_fstatfs64 44
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#define __NR_fsync 82
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#define __NR_ftruncate64 46
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#define __NR_futex_time64 422
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#define __NR_get_mempolicy 236
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#define __NR_get_robust_list 100
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#define __NR_getcpu 168
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#define __NR_getcwd 17
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#define __NR_getdents64 61
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#define __NR_getegid 177
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#define __NR_geteuid 175
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#define __NR_getgid 176
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#define __NR_getgroups 158
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#define __NR_getitimer 102
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#define __NR_getpeername 205
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#define __NR_getpgid 155
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#define __NR_getpid 172
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#define __NR_getppid 173
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#define __NR_getpriority 141
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#define __NR_getrandom 278
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#define __NR_getresgid 150
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#define __NR_getresuid 148
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#define __NR_getrlimit 163
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#define __NR_getrusage 165
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#define __NR_getsid 156
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#define __NR_getsockname 204
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#define __NR_getsockopt 209
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#define __NR_gettid 178
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#define __NR_gettimeofday 169
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#define __NR_getuid 174
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#define __NR_getxattr 8
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#define __NR_init_module 105
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#define __NR_inotify_add_watch 27
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#define __NR_inotify_init1 26
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#define __NR_inotify_rm_watch 28
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#define __NR_io_cancel 3
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#define __NR_io_destroy 1
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#define __NR_io_getevents 4
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#define __NR_io_pgetevents 292
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#define __NR_io_pgetevents_time64 416
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#define __NR_io_setup 0
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#define __NR_io_submit 2
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#define __NR_io_uring_enter 426
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#define __NR_io_uring_register 427
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#define __NR_io_uring_setup 425
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#define __NR_ioctl 29
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#define __NR_ioprio_get 31
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#define __NR_ioprio_set 30
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#define __NR_kcmp 272
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#define __NR_kexec_file_load 294
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#define __NR_kexec_load 104
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#define __NR_keyctl 219
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#define __NR_kill 129
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#define __NR_lgetxattr 9
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#define __NR_linkat 37
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#define __NR_listen 201
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#define __NR_listxattr 11
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#define __NR_llistxattr 12
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#define __NR_llseek 62
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#define __NR_lookup_dcookie 18
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#define __NR_lremovexattr 15
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#define __NR_lsetxattr 6
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#define __NR_madvise 233
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#define __NR_mbind 235
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#define __NR_membarrier 283
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#define __NR_memfd_create 279
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#define __NR_migrate_pages 238
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#define __NR_mincore 232
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#define __NR_mkdirat 34
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#define __NR_mknodat 33
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#define __NR_mlock 228
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#define __NR_mlock2 284
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#define __NR_mlockall 230
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#define __NR_mmap2 222
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#define __NR_mount 40
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#define __NR_move_mount 429
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#define __NR_move_pages 239
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#define __NR_mprotect 226
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#define __NR_mq_getsetattr 185
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#define __NR_mq_notify 184
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#define __NR_mq_open 180
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#define __NR_mq_timedreceive_time64 419
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#define __NR_mq_timedsend_time64 418
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#define __NR_mq_unlink 181
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#define __NR_mremap 216
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#define __NR_msgctl 187
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#define __NR_msgget 186
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#define __NR_msgrcv 188
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#define __NR_msgsnd 189
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#define __NR_msync 227
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#define __NR_munlock 229
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#define __NR_munlockall 231
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#define __NR_munmap 215
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#define __NR_name_to_handle_at 264
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#define __NR_nanosleep 101
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#define __NR_nfsservctl 42
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#define __NR_open_by_handle_at 265
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#define __NR_open_tree 428
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#define __NR_openat 56
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#define __NR_openat2 437
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#define __NR_perf_event_open 241
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#define __NR_personality 92
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#define __NR_pidfd_getfd 438
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#define __NR_pidfd_open 434
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#define __NR_pidfd_send_signal 424
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#define __NR_pipe2 59
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#define __NR_pivot_root 41
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#define __NR_pkey_alloc 289
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#define __NR_pkey_free 290
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#define __NR_pkey_mprotect 288
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#define __NR_ppoll_time64 414
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#define __NR_prctl 167
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#define __NR_pread64 67
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#define __NR_preadv 69
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#define __NR_preadv2 286
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#define __NR_prlimit64 261
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#define __NR_process_vm_readv 270
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#define __NR_process_vm_writev 271
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#define __NR_pselect6_time64 413
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#define __NR_ptrace 117
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#define __NR_pwrite64 68
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#define __NR_pwritev 70
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#define __NR_pwritev2 287
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#define __NR_quotactl 60
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#define __NR_read 63
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#define __NR_readahead 213
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#define __NR_readlinkat 78
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#define __NR_readv 65
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#define __NR_reboot 142
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#define __NR_recvfrom 207
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#define __NR_recvmmsg_time64 417
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#define __NR_recvmsg 212
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#define __NR_remap_file_pages 234
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#define __NR_removexattr 14
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#define __NR_renameat 38
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#define __NR_renameat2 276
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#define __NR_request_key 218
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#define __NR_restart_syscall 128
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#define __NR_rseq 293
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#define __NR_rt_sigaction 134
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#define __NR_rt_sigpending 136
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#define __NR_rt_sigprocmask 135
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#define __NR_rt_sigqueueinfo 138
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#define __NR_rt_sigreturn 139
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#define __NR_rt_sigsuspend 133
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#define __NR_rt_sigtimedwait_time64 421
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#define __NR_rt_tgsigqueueinfo 240
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#define __NR_sched_get_priority_max 125
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#define __NR_sched_get_priority_min 126
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#define __NR_sched_getaffinity 123
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#define __NR_sched_getattr 275
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#define __NR_sched_getparam 121
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#define __NR_sched_getscheduler 120
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#define __NR_sched_rr_get_interval_time64 423
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#define __NR_sched_setaffinity 122
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#define __NR_sched_setattr 274
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#define __NR_sched_setparam 118
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#define __NR_sched_setscheduler 119
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#define __NR_sched_yield 124
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#define __NR_seccomp 277
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#define __NR_semctl 191
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#define __NR_semget 190
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#define __NR_semop 193
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#define __NR_semtimedop_time64 420
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#define __NR_sendfile64 71
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#define __NR_sendmmsg 269
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#define __NR_sendmsg 211
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#define __NR_sendto 206
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#define __NR_set_mempolicy 237
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#define __NR_set_robust_list 99
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#define __NR_set_tid_address 96
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#define __NR_setdomainname 162
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#define __NR_setfsgid 152
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#define __NR_setfsuid 151
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#define __NR_setgid 144
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#define __NR_setgroups 159
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#define __NR_sethostname 161
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#define __NR_setitimer 103
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#define __NR_setns 268
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#define __NR_setpgid 154
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#define __NR_setpriority 140
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#define __NR_setregid 143
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#define __NR_setresgid 149
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#define __NR_setresuid 147
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#define __NR_setreuid 145
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#define __NR_setrlimit 164
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#define __NR_setsid 157
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#define __NR_setsockopt 208
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#define __NR_settimeofday 170
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#define __NR_setuid 146
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#define __NR_setxattr 5
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#define __NR_shmat 196
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#define __NR_shmctl 195
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#define __NR_shmdt 197
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#define __NR_shmget 194
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#define __NR_shutdown 210
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#define __NR_sigaltstack 132
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#define __NR_signalfd4 74
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#define __NR_socket 198
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#define __NR_socketpair 199
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#define __NR_splice 76
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#define __NR_statfs64 43
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#define __NR_statx 291
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#define __NR_swapoff 225
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#define __NR_swapon 224
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#define __NR_symlinkat 36
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#define __NR_sync 81
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#define __NR_sync_file_range 84
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#define __NR_syncfs 267
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#define __NR_sysfs 247
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#define __NR_sysinfo 179
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#define __NR_syslog 116
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#define __NR_tee 77
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#define __NR_tgkill 131
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#define __NR_timer_create 107
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#define __NR_timer_delete 111
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#define __NR_timer_getoverrun 109
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#define __NR_timer_gettime64 408
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#define __NR_timer_settime64 409
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#define __NR_timerfd_create 85
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#define __NR_timerfd_gettime64 410
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#define __NR_timerfd_settime64 411
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#define __NR_times 153
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#define __NR_tkill 130
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#define __NR_truncate64 45
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#define __NR_umask 166
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#define __NR_umount2 39
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#define __NR_uname 160
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#define __NR_unlinkat 35
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#define __NR_unshare 97
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#define __NR_userfaultfd 282
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#define __NR_utimensat_time64 412
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#define __NR_vhangup 58
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#define __NR_vmsplice 75
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#define __NR_wait4 260
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#define __NR_waitid 95
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#define __NR_write 64
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#define __NR_writev 66
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21
sysdeps/unix/sysv/linux/arc/bits/timesize.h
Normal file
21
sysdeps/unix/sysv/linux/arc/bits/timesize.h
Normal file
@ -0,0 +1,21 @@
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/* Bit size of the time_t type at glibc build time, general case.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
|
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License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
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||||
|
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
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||||
|
||||
You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<http://www.gnu.org/licenses/>. */
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#include <bits/wordsize.h>
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#define __TIMESIZE 64
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93
sysdeps/unix/sysv/linux/arc/clone.S
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93
sysdeps/unix/sysv/linux/arc/clone.S
Normal file
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/* clone() implementation for ARC.
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Copyright (C) 2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Andrew Jenner <andrew@codesourcery.com>, 2008.
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The GNU C Library is free software; you can redistribute it and/or
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||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#define _ERRNO_H 1
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#include <bits/errno.h>
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#include <tcb-offsets.h>
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#define CLONE_SETTLS 0x00080000
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/* int clone(int (*fn)(void *), void *child_stack,
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int flags, void *arg, ...
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< pid_t *ptid, struct user_desc *tls, pid_t *ctid > );
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NOTE: I'm assuming that the last 3 args are NOT var-args and in case all
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3 are not relevant, caller will nevertheless pass those as NULL.
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clone syscall in kernel (ABI: CONFIG_CLONE_BACKWARDS)
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int sys_clone(unsigned long int clone_flags,
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unsigned long int newsp,
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int __user *parent_tidptr,
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void *tls,
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int __user *child_tidptr). */
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ENTRY (__clone)
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cmp r0, 0 /* @fn can't be NULL. */
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cmp.ne r1, 0 /* @child_stack can't be NULL. */
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bz L (__sys_err)
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/* save some of the orig args
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r0 containg @fn will be clobbered AFTER syscall (with ret val)
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rest are clobbered BEFORE syscall due to different arg ordering. */
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mov r10, r0 /* @fn. */
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mov r11, r3 /* @args. */
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mov r12, r2 /* @clone_flags. */
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mov r9, r5 /* @tls. */
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/* adjust libc args for syscall. */
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mov r0, r2 /* libc @flags is 1st syscall arg. */
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mov r2, r4 /* libc @ptid. */
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mov r3, r5 /* libc @tls. */
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mov r4, r6 /* libc @ctid. */
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mov r8, __NR_clone
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ARC_TRAP_INSN
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cmp r0, 0 /* return code : 0 new process, !0 parent. */
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blt L (__sys_err2) /* < 0 (signed) error. */
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||||
jnz [blink] /* Parent returns. */
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||||
|
||||
/* child jumps off to @fn with @arg as argument
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||||
TP register already set by kernel. */
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||||
jl.d [r10]
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||||
mov r0, r11
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||||
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||||
/* exit() with result from @fn (already in r0). */
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mov r8, __NR_exit
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ARC_TRAP_INSN
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||||
/* In case it ever came back. */
|
||||
flag 1
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||||
|
||||
L (__sys_err):
|
||||
mov r0, -EINVAL
|
||||
L (__sys_err2):
|
||||
/* (1) No need to make -ve kernel error code as positive errno
|
||||
__syscall_error expects the -ve error code returned by kernel
|
||||
(2) r0 still had orig -ve kernel error code
|
||||
(3) Tail call to __syscall_error so we dont have to come back
|
||||
here hence instead of jmp-n-link (reg push/pop) we do jmp
|
||||
(4) No need to route __syscall_error via PLT, B is inherently
|
||||
position independent. */
|
||||
b __syscall_error
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||||
PSEUDO_END (__clone)
|
||||
libc_hidden_def (__clone)
|
||||
weak_alias (__clone, clone)
|
46
sysdeps/unix/sysv/linux/arc/fixup-asm-unistd.h
Normal file
46
sysdeps/unix/sysv/linux/arc/fixup-asm-unistd.h
Normal file
@ -0,0 +1,46 @@
|
||||
/* Regularize <asm/unistd.h> definitions. ARC version.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<http://www.gnu.org/licenses/>. */
|
||||
|
||||
/* Adjustments to ARC asm-generic syscall ABI (3.9 kernel) for 64-bit time_t
|
||||
support. */
|
||||
|
||||
/* fstat64 and fstatat64 need to be replaced with statx. */
|
||||
|
||||
#undef __NR_fstat64
|
||||
#undef __NR_fstatat64
|
||||
|
||||
/* Elide all other 32-bit time_t syscalls. */
|
||||
|
||||
# undef __NR_clock_adjtime
|
||||
# undef __NR_clock_getres
|
||||
# undef __NR_clock_gettime
|
||||
# undef __NR_clock_nanosleep
|
||||
# undef __NR_clock_settime
|
||||
# undef __NR_futex
|
||||
# undef __NR_mq_timedreceive
|
||||
# undef __NR_mq_timedsend
|
||||
# undef __NR_ppoll
|
||||
# undef __NR_pselect6
|
||||
# undef __NR_recvmmsg
|
||||
# undef __NR_rt_sigtimedwait
|
||||
# undef __NR_sched_rr_get_interval
|
||||
# undef __NR_semtimedop
|
||||
# undef __NR_timer_gettime
|
||||
# undef __NR_timer_settime
|
||||
# undef __NR_timerfd_gettime
|
||||
# undef __NR_timerfd_settime
|
||||
# undef __NR_utimensat
|
6
sysdeps/unix/sysv/linux/arc/jmp_buf-macros.h
Normal file
6
sysdeps/unix/sysv/linux/arc/jmp_buf-macros.h
Normal file
@ -0,0 +1,6 @@
|
||||
#define JMP_BUF_SIZE (32 + 1 + 64 / (8 * sizeof (unsigned long int))) * sizeof (unsigned long int)
|
||||
#define SIGJMP_BUF_SIZE (32 + 1 + 64 / (8 * sizeof (unsigned long int))) * sizeof (unsigned long int)
|
||||
#define JMP_BUF_ALIGN __alignof__ (unsigned long int)
|
||||
#define SIGJMP_BUF_ALIGN __alignof__ (unsigned long int)
|
||||
#define MASK_WAS_SAVED_OFFSET (32 * sizeof (unsigned long int))
|
||||
#define SAVED_MASK_OFFSET (33 * sizeof (unsigned long int))
|
27
sysdeps/unix/sysv/linux/arc/kernel-features.h
Normal file
27
sysdeps/unix/sysv/linux/arc/kernel-features.h
Normal file
@ -0,0 +1,27 @@
|
||||
/* Set flags signalling availability of kernel features based on given
|
||||
kernel version number.
|
||||
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
/* The minimum supported kernel version for ARC is 5.1 (64-bit time, offsets),
|
||||
although the asm-generic ABI is from 3.9 (when Linux port was merged). */
|
||||
|
||||
#include_next <kernel-features.h>
|
||||
|
||||
#undef __ASSUME_CLONE_DEFAULT
|
||||
#define __ASSUME_CLONE_BACKWARDS 1
|
26
sysdeps/unix/sysv/linux/arc/kernel_stat.h
Normal file
26
sysdeps/unix/sysv/linux/arc/kernel_stat.h
Normal file
@ -0,0 +1,26 @@
|
||||
/* Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library. If not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <bits/wordsize.h>
|
||||
|
||||
/* Needed to elide the itemized copy code in common xstatconv.c. */
|
||||
#define STAT_IS_KERNEL_STAT 1
|
||||
|
||||
/* Nice side-effect of 64-bit time_t switch is these are same. */
|
||||
#define XSTAT_IS_XSTAT64 1
|
||||
|
||||
#define STATFS_IS_STATFS64 0
|
27
sysdeps/unix/sysv/linux/arc/mmap_internal.h
Normal file
27
sysdeps/unix/sysv/linux/arc/mmap_internal.h
Normal file
@ -0,0 +1,27 @@
|
||||
/* mmap - map files or devices into memory. Linux/ARC version.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef MMAP_ARC_INTERNAL_H
|
||||
#define MMAP_ARC_INTERNAL_H
|
||||
|
||||
/* 8K is default but determine the shift dynamically with getpagesize. */
|
||||
#define MMAP2_PAGE_UNIT -1
|
||||
|
||||
#include_next <mmap_internal.h>
|
||||
|
||||
#endif
|
31
sysdeps/unix/sysv/linux/arc/sigaction.c
Normal file
31
sysdeps/unix/sysv/linux/arc/sigaction.c
Normal file
@ -0,0 +1,31 @@
|
||||
/* ARC specific sigaction.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library. If not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#define SA_RESTORER 0x04000000
|
||||
|
||||
extern void __default_rt_sa_restorer (void);
|
||||
|
||||
#define SET_SA_RESTORER(kact, act) \
|
||||
({ \
|
||||
(kact)->sa_restorer = __default_rt_sa_restorer; \
|
||||
(kact)->sa_flags |= SA_RESTORER; \
|
||||
})
|
||||
|
||||
#define RESET_SA_RESTORER(act, kact)
|
||||
|
||||
#include <sysdeps/unix/sysv/linux/sigaction.c>
|
29
sysdeps/unix/sysv/linux/arc/sigrestorer.S
Normal file
29
sysdeps/unix/sysv/linux/arc/sigrestorer.S
Normal file
@ -0,0 +1,29 @@
|
||||
/* Default sigreturn stub for ARC Linux.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <sys/syscall.h>
|
||||
#include <sysdep.h>
|
||||
#include <tcb-offsets.h>
|
||||
|
||||
/* Note the NOP has to be outside body. */
|
||||
nop
|
||||
ENTRY (__default_rt_sa_restorer)
|
||||
mov r8, __NR_rt_sigreturn
|
||||
ARC_TRAP_INSN
|
||||
j_s [blink]
|
||||
PSEUDO_END_NOERRNO (__default_rt_sa_restorer)
|
33
sysdeps/unix/sysv/linux/arc/syscall.S
Normal file
33
sysdeps/unix/sysv/linux/arc/syscall.S
Normal file
@ -0,0 +1,33 @@
|
||||
/* syscall - indirect system call.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <sysdep.h>
|
||||
|
||||
ENTRY (syscall)
|
||||
mov_s r8, r0
|
||||
mov_s r0, r1
|
||||
mov_s r1, r2
|
||||
mov_s r2, r3
|
||||
mov_s r3, r4
|
||||
mov_s r4, r5
|
||||
mov_s r5, r6
|
||||
|
||||
ARC_TRAP_INSN
|
||||
brhi r0, -4096, L (call_syscall_err)
|
||||
j [blink]
|
||||
PSEUDO_END (syscall)
|
3
sysdeps/unix/sysv/linux/arc/syscalls.list
Normal file
3
sysdeps/unix/sysv/linux/arc/syscalls.list
Normal file
@ -0,0 +1,3 @@
|
||||
# File name Caller Syscall name Args Strong name Weak names
|
||||
|
||||
cacheflush - cacheflush i:pii _flush_cache cacheflush
|
33
sysdeps/unix/sysv/linux/arc/sysdep.c
Normal file
33
sysdeps/unix/sysv/linux/arc/sysdep.c
Normal file
@ -0,0 +1,33 @@
|
||||
/* ARC wrapper for setting errno.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <sysdep.h>
|
||||
#include <errno.h>
|
||||
|
||||
/* All syscall handlers land here to avoid generated code bloat due to
|
||||
GOT reference to errno_location or it's equivalent. */
|
||||
long int
|
||||
__syscall_error (long int err_no)
|
||||
{
|
||||
__set_errno (-err_no);
|
||||
return -1;
|
||||
}
|
||||
|
||||
#if IS_IN (libc)
|
||||
hidden_def (__syscall_error)
|
||||
#endif
|
226
sysdeps/unix/sysv/linux/arc/sysdep.h
Normal file
226
sysdeps/unix/sysv/linux/arc/sysdep.h
Normal file
@ -0,0 +1,226 @@
|
||||
/* Assembler macros for ARC.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#ifndef _LINUX_ARC_SYSDEP_H
|
||||
#define _LINUX_ARC_SYSDEP_H 1
|
||||
|
||||
#include <sysdeps/arc/sysdep.h>
|
||||
#include <sysdeps/unix/sysv/linux/generic/sysdep.h>
|
||||
|
||||
/* "workarounds" for generic code needing to handle 64-bit time_t. */
|
||||
|
||||
/* Fix sysdeps/unix/sysv/linux/clock_getcpuclockid.c. */
|
||||
#define __NR_clock_getres __NR_clock_getres_time64
|
||||
/* Fix sysdeps/nptl/lowlevellock-futex.h. */
|
||||
#define __NR_futex __NR_futex_time64
|
||||
/* Fix sysdeps/unix/sysv/linux/pause.c. */
|
||||
#define __NR_ppoll __NR_ppoll_time64
|
||||
/* Fix sysdeps/unix/sysv/linux/select.c. */
|
||||
#define __NR_pselect6 __NR_pselect6_time64
|
||||
/* Fix sysdeps/unix/sysv/linux/recvmmsg.c. */
|
||||
#define __NR_recvmmsg __NR_recvmmsg_time64
|
||||
/* Fix sysdeps/unix/sysv/linux/sigtimedwait.c. */
|
||||
#define __NR_rt_sigtimedwait __NR_rt_sigtimedwait_time64
|
||||
/* Fix sysdeps/unix/sysv/linux/semtimedop.c. */
|
||||
#define __NR_semtimedop __NR_semtimedop_time64
|
||||
/* Hack sysdeps/unix/sysv/linux/generic/utimes.c. */
|
||||
#define __NR_utimensat __NR_utimensat_time64
|
||||
|
||||
/* For RTLD_PRIVATE_ERRNO. */
|
||||
#include <dl-sysdep.h>
|
||||
|
||||
#include <tls.h>
|
||||
|
||||
#undef SYS_ify
|
||||
#define SYS_ify(syscall_name) __NR_##syscall_name
|
||||
|
||||
#ifdef __ASSEMBLER__
|
||||
|
||||
/* This is a "normal" system call stub: if there is an error,
|
||||
it returns -1 and sets errno. */
|
||||
|
||||
# undef PSEUDO
|
||||
# define PSEUDO(name, syscall_name, args) \
|
||||
PSEUDO_NOERRNO(name, syscall_name, args) ASM_LINE_SEP \
|
||||
brhi r0, -4096, L (call_syscall_err) ASM_LINE_SEP
|
||||
|
||||
# define ret j_s [blink]
|
||||
|
||||
# undef PSEUDO_END
|
||||
# define PSEUDO_END(name) \
|
||||
SYSCALL_ERROR_HANDLER ASM_LINE_SEP \
|
||||
END (name)
|
||||
|
||||
/* --------- Helper for SYSCALL_NOERRNO -----------
|
||||
This kind of system call stub never returns an error.
|
||||
We return the return value register to the caller unexamined. */
|
||||
|
||||
# undef PSEUDO_NOERRNO
|
||||
# define PSEUDO_NOERRNO(name, syscall_name, args) \
|
||||
.text ASM_LINE_SEP \
|
||||
ENTRY (name) ASM_LINE_SEP \
|
||||
DO_CALL (syscall_name, args) ASM_LINE_SEP \
|
||||
|
||||
/* Return the return value register unexamined. Since r0 is both
|
||||
syscall return reg and function return reg, no work needed. */
|
||||
# define ret_NOERRNO \
|
||||
j_s [blink] ASM_LINE_SEP
|
||||
|
||||
# undef PSEUDO_END_NOERRNO
|
||||
# define PSEUDO_END_NOERRNO(name) \
|
||||
END (name)
|
||||
|
||||
/* --------- Helper for SYSCALL_ERRVAL -----------
|
||||
This kind of system call stub returns the errno code as its return
|
||||
value, or zero for success. We may massage the kernel's return value
|
||||
to meet that ABI, but we never set errno here. */
|
||||
|
||||
# undef PSEUDO_ERRVAL
|
||||
# define PSEUDO_ERRVAL(name, syscall_name, args) \
|
||||
PSEUDO_NOERRNO(name, syscall_name, args) ASM_LINE_SEP
|
||||
|
||||
/* Don't set errno, return kernel error (in errno form) or zero. */
|
||||
# define ret_ERRVAL \
|
||||
rsub r0, r0, 0 ASM_LINE_SEP \
|
||||
ret_NOERRNO
|
||||
|
||||
# undef PSEUDO_END_ERRVAL
|
||||
# define PSEUDO_END_ERRVAL(name) \
|
||||
END (name)
|
||||
|
||||
|
||||
/* To reduce the code footprint, we confine the actual errno access
|
||||
to single place in __syscall_error().
|
||||
This takes raw kernel error value, sets errno and returns -1. */
|
||||
# if IS_IN (libc)
|
||||
# define CALL_ERRNO_SETTER_C bl PLTJMP(HIDDEN_JUMPTARGET(__syscall_error))
|
||||
# else
|
||||
# define CALL_ERRNO_SETTER_C bl PLTJMP(__syscall_error)
|
||||
# endif
|
||||
|
||||
# define SYSCALL_ERROR_HANDLER \
|
||||
L (call_syscall_err): ASM_LINE_SEP \
|
||||
push_s blink ASM_LINE_SEP \
|
||||
cfi_adjust_cfa_offset (4) ASM_LINE_SEP \
|
||||
cfi_rel_offset (blink, 0) ASM_LINE_SEP \
|
||||
CALL_ERRNO_SETTER_C ASM_LINE_SEP \
|
||||
pop_s blink ASM_LINE_SEP \
|
||||
cfi_adjust_cfa_offset (-4) ASM_LINE_SEP \
|
||||
cfi_restore (blink) ASM_LINE_SEP \
|
||||
j_s [blink]
|
||||
|
||||
# define DO_CALL(syscall_name, args) \
|
||||
mov r8, __NR_##syscall_name ASM_LINE_SEP \
|
||||
ARC_TRAP_INSN ASM_LINE_SEP
|
||||
|
||||
# define ARC_TRAP_INSN trap_s 0
|
||||
|
||||
#else /* !__ASSEMBLER__ */
|
||||
|
||||
# define SINGLE_THREAD_BY_GLOBAL 1
|
||||
|
||||
# if IS_IN (libc)
|
||||
extern long int __syscall_error (long int);
|
||||
hidden_proto (__syscall_error)
|
||||
# endif
|
||||
|
||||
# define ARC_TRAP_INSN "trap_s 0 \n\t"
|
||||
|
||||
# undef INTERNAL_SYSCALL_NCS
|
||||
# define INTERNAL_SYSCALL_NCS(number, nr_args, args...) \
|
||||
({ \
|
||||
/* Per ABI, r0 is 1st arg and return reg. */ \
|
||||
register long int __ret __asm__("r0"); \
|
||||
register long int _sys_num __asm__("r8"); \
|
||||
\
|
||||
LOAD_ARGS_##nr_args (number, args) \
|
||||
\
|
||||
__asm__ volatile ( \
|
||||
ARC_TRAP_INSN \
|
||||
: "+r" (__ret) \
|
||||
: "r"(_sys_num) ASM_ARGS_##nr_args \
|
||||
: "memory"); \
|
||||
\
|
||||
__ret; })
|
||||
|
||||
# undef INTERNAL_SYSCALL
|
||||
# define INTERNAL_SYSCALL(name, nr, args...) \
|
||||
INTERNAL_SYSCALL_NCS(__NR_##name, nr, args)
|
||||
|
||||
/* Macros for setting up inline __asm__ input regs. */
|
||||
# define ASM_ARGS_0
|
||||
# define ASM_ARGS_1 ASM_ARGS_0, "r" (__ret)
|
||||
# define ASM_ARGS_2 ASM_ARGS_1, "r" (_arg2)
|
||||
# define ASM_ARGS_3 ASM_ARGS_2, "r" (_arg3)
|
||||
# define ASM_ARGS_4 ASM_ARGS_3, "r" (_arg4)
|
||||
# define ASM_ARGS_5 ASM_ARGS_4, "r" (_arg5)
|
||||
# define ASM_ARGS_6 ASM_ARGS_5, "r" (_arg6)
|
||||
# define ASM_ARGS_7 ASM_ARGS_6, "r" (_arg7)
|
||||
|
||||
/* Macros for converting sys-call wrapper args into sys call args. */
|
||||
# define LOAD_ARGS_0(nm, arg) \
|
||||
_sys_num = (long int) (nm);
|
||||
|
||||
# define LOAD_ARGS_1(nm, arg1) \
|
||||
__ret = (long int) (arg1); \
|
||||
LOAD_ARGS_0 (nm, arg1)
|
||||
|
||||
/* Note that the use of _tmpX might look superflous, however it is needed
|
||||
to ensure that register variables are not clobbered if arg happens to be
|
||||
a function call itself. e.g. sched_setaffinity() calling getpid() for arg2
|
||||
Also this specific order of recursive calling is important to segregate
|
||||
the tmp args evaluation (function call case described above) and assigment
|
||||
of register variables. */
|
||||
|
||||
# define LOAD_ARGS_2(nm, arg1, arg2) \
|
||||
long int _tmp2 = (long int) (arg2); \
|
||||
LOAD_ARGS_1 (nm, arg1) \
|
||||
register long int _arg2 __asm__ ("r1") = _tmp2;
|
||||
|
||||
# define LOAD_ARGS_3(nm, arg1, arg2, arg3) \
|
||||
long int _tmp3 = (long int) (arg3); \
|
||||
LOAD_ARGS_2 (nm, arg1, arg2) \
|
||||
register long int _arg3 __asm__ ("r2") = _tmp3;
|
||||
|
||||
#define LOAD_ARGS_4(nm, arg1, arg2, arg3, arg4) \
|
||||
long int _tmp4 = (long int) (arg4); \
|
||||
LOAD_ARGS_3 (nm, arg1, arg2, arg3) \
|
||||
register long int _arg4 __asm__ ("r3") = _tmp4;
|
||||
|
||||
# define LOAD_ARGS_5(nm, arg1, arg2, arg3, arg4, arg5) \
|
||||
long int _tmp5 = (long int) (arg5); \
|
||||
LOAD_ARGS_4 (nm, arg1, arg2, arg3, arg4) \
|
||||
register long int _arg5 __asm__ ("r4") = _tmp5;
|
||||
|
||||
# define LOAD_ARGS_6(nm, arg1, arg2, arg3, arg4, arg5, arg6)\
|
||||
long int _tmp6 = (long int) (arg6); \
|
||||
LOAD_ARGS_5 (nm, arg1, arg2, arg3, arg4, arg5) \
|
||||
register long int _arg6 __asm__ ("r5") = _tmp6;
|
||||
|
||||
# define LOAD_ARGS_7(nm, arg1, arg2, arg3, arg4, arg5, arg6, arg7)\
|
||||
long int _tmp7 = (int) (arg7); \
|
||||
LOAD_ARGS_6 (nm, arg1, arg2, arg3, arg4, arg5, arg6) \
|
||||
register long int _arg7 __asm__ ("r6") = _tmp7;
|
||||
|
||||
/* Pointer mangling not yet supported. */
|
||||
# define PTR_MANGLE(var) (void) (var)
|
||||
# define PTR_DEMANGLE(var) (void) (var)
|
||||
|
||||
#endif /* !__ASSEMBLER__ */
|
||||
|
||||
#endif /* linux/arc/sysdep.h */
|
42
sysdeps/unix/sysv/linux/arc/vfork.S
Normal file
42
sysdeps/unix/sysv/linux/arc/vfork.S
Normal file
@ -0,0 +1,42 @@
|
||||
/* vfork for ARC Linux.
|
||||
Copyright (C) 2020 Free Software Foundation, Inc.
|
||||
This file is part of the GNU C Library.
|
||||
|
||||
The GNU C Library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Lesser General Public
|
||||
License as published by the Free Software Foundation; either
|
||||
version 2.1 of the License, or (at your option) any later version.
|
||||
|
||||
The GNU C Library is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
||||
Lesser General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Lesser General Public
|
||||
License along with the GNU C Library; if not, see
|
||||
<https://www.gnu.org/licenses/>. */
|
||||
|
||||
#include <sys/syscall.h>
|
||||
#include <sysdep.h>
|
||||
#include <tcb-offsets.h>
|
||||
#define _SIGNAL_H
|
||||
#include <bits/signum-arch.h> /* For SIGCHLD */
|
||||
|
||||
#define CLONE_VM 0x00000100
|
||||
#define CLONE_VFORK 0x00004000
|
||||
#define CLONE_FLAGS_FOR_VFORK (CLONE_VM|CLONE_VFORK|SIGCHLD)
|
||||
|
||||
ENTRY (__vfork)
|
||||
mov r0, CLONE_FLAGS_FOR_VFORK
|
||||
mov_s r1, sp
|
||||
mov r8, __NR_clone
|
||||
ARC_TRAP_INSN
|
||||
|
||||
cmp r0, 0
|
||||
jge [blink] ; child continues
|
||||
|
||||
b __syscall_error
|
||||
PSEUDO_END (__vfork)
|
||||
libc_hidden_def (__vfork)
|
||||
|
||||
weak_alias (__vfork, vfork)
|
Loading…
Reference in New Issue
Block a user