1# Implement symbols common to libc and libsys. 2# 3# When dynamically linked, the libc symbols are filtered by the actual 4# implementations in libsys. When statically linked, both libc and 5# libsys contain full implementations to preserve the API of libc.a. 6# 7# The following variable are programmer-defined: 8# 9# MDASM Override the default syscall implementation in MIASM 10# (from syscall.mk below). Each entry is a source file 11# name (e.g., vfork.S). 12# Generally defined in <arch>/Makefile.sys. 13# NOASM Don't generate system call stubs. Each entry is an 14# object file name (e.g., yeild.o). Don't add more of these. 15# PSEUDO Generate _<sys> and __sys_<sys> symbols, but not <sys>. 16# Each entry is a bare syscall name (e.g., "clock_gettime"). 17# INTERPOSED Like PSEUDO, but <sys>.c is added to SRCS. 18# Used for syscalls intercepted by the threading library. 19# 20.PATH: ${LIBSYS_SRCTOP}/${LIBC_ARCH} ${LIBSYS_SRCTOP} 21 22# Include the generated makefile containing the *complete* list 23# of syscall names in MIASM. 24.include "${SRCTOP}/sys/sys/syscall.mk" 25 26# Include machine dependent definitions. 27.include "${LIBSYS_SRCTOP}/${LIBC_ARCH}/Makefile.sys" 28.if ${LIBC_ARCH} == "i386" || ${LIBC_ARCH} == "amd64" 29.include "${LIBSYS_SRCTOP}/x86/Makefile.sys" 30.endif 31 32SRCS+= clock_gettime.c gettimeofday.c __vdso_gettimeofday.c 33 34# Sources common to both syscall interfaces: 35SRCS+= \ 36 __error.c \ 37 __getosreldate.c \ 38 getpagesize.c \ 39 getpagesizes.c \ 40 libsys_sigwait.c 41 42.if ${LIB} == "c" 43# Trapping stubs in dynamic libc to be filtered by libsys. 44SOBJS+= libc_stubs.pico 45 46# Link the full implementation of ELF auxargs for static libc. 47STATICOBJS+= auxv.o 48 49STATICOBJS+= interposing_table.o 50.endif 51 52PSEUDO= \ 53 __realpathat \ 54 clock_gettime \ 55 exit \ 56 getlogin \ 57 gettimeofday \ 58 sched_getcpu 59 60INTERPOSED = \ 61 accept \ 62 accept4 \ 63 aio_suspend \ 64 clock_nanosleep \ 65 close \ 66 connect \ 67 fcntl \ 68 fdatasync \ 69 fsync \ 70 fork \ 71 kevent \ 72 msync \ 73 nanosleep \ 74 open \ 75 openat \ 76 pdfork \ 77 poll \ 78 ppoll \ 79 pselect \ 80 ptrace \ 81 read \ 82 readv \ 83 recvfrom \ 84 recvmsg \ 85 select \ 86 sendmsg \ 87 sendto \ 88 setcontext \ 89 sigaction \ 90 sigprocmask \ 91 sigsuspend \ 92 sigtimedwait \ 93 sigwait \ 94 sigwaitinfo \ 95 swapcontext \ 96 wait4 \ 97 wait6 \ 98 write \ 99 writev 100 101PSEUDO+= ${INTERPOSED} 102 103# Add machine dependent asm sources: 104SRCS+=${MDASM} 105 106# Look though the complete list of syscalls (MIASM) for names that are 107# not defined with machine dependent implementations (MDASM), not declared 108# without a trival <sys> symbol (PSEUDO). Add each syscall that satisfies 109# these conditions to the ASM list. 110.for _asm in ${MIASM} 111.if !${MDASM:R:M${_asm:R}} && !${NOASM:R:M${_asm:R}} && !${PSEUDO:M${_asm:R}} 112ASM+=$(_asm) 113.endif 114.endfor 115 116SASM= ${ASM:S/.o/.S/} 117 118SPSEUDO= ${PSEUDO:C/^.*$/_&.S/} 119 120SRCS+= ${SASM} ${SPSEUDO} 121 122SYM_MAPS+= ${LIBSYS_SRCTOP}/syscalls.map 123SYM_MAPS+= ${LIBSYS_SRCTOP}/Symbol.sys.map 124.if exists(${LIBSYS_SRCTOP}/${LIBC_ARCH}/Symbol.sys.map) 125SYM_MAPS+= ${LIBSYS_SRCTOP}/${LIBC_ARCH}/Symbol.sys.map 126.endif 127 128# Generated files 129CLEANFILES+= ${SASM} ${SPSEUDO} 130 131NOTE_GNU_STACK='\t.section .note.GNU-stack,"",%%progbits\n' 132.if ${MACHINE_CPUARCH} == "aarch64" 133FEATURE_NOTE='\#include <sys/elf_common.h>\nGNU_PROPERTY_AARCH64_FEATURE_1_NOTE(GNU_PROPERTY_AARCH64_FEATURE_1_VAL)\n' 134.else 135FEATURE_NOTE='' 136.endif 137 138# Add this file as a dependency of the generated assembly along with 139# the two included files compat.h and SYS.h. Depending on this Makefile 140# will cause some needless regenerations, but handles both changes in 141# generated assembly and movement between MIASM and PSEUDO/INTERPOSED. 142# The dependency on compat.h and SYS.h should properly be on the 143# <foo>.S-><foo>.o rules, but there are too many .o variants for it to 144# be easy and touching the geneated source files has the same effect in 145# practice. 146__makefile_sys:= ${.PARSEDIR}/${.PARSEFILE} 147__asm_deps= ${__makefile_sys} \ 148 ${LIBC_SRCTOP}/include/compat.h \ 149 ${LIBSYS_SRCTOP}/${LIBC_ARCH}/SYS.h 150 151${SASM}: ${__asm_deps} 152 printf '/* %sgenerated by libsys/Makefile.sys */\n' @ > ${.TARGET} 153 printf '#include "compat.h"\n' >> ${.TARGET} 154 printf '#include "SYS.h"\nRSYSCALL(${.PREFIX})\n' >> ${.TARGET} 155 printf ${NOTE_GNU_STACK} >>${.TARGET} 156 printf ${FEATURE_NOTE} >> ${.TARGET} 157 158${SPSEUDO}: ${__asm_deps} 159 printf '/* %sgenerated by libsys/Makefile.sys */\n' @ > ${.TARGET} 160 printf '#include "compat.h"\n' >> ${.TARGET} 161 printf '#include "SYS.h"\nPSEUDO(${.PREFIX:S/_//})\n' \ 162 >> ${.TARGET} 163 printf ${NOTE_GNU_STACK} >>${.TARGET} 164 printf ${FEATURE_NOTE} >> ${.TARGET} 165 166.if ${LIB} == "sys" 167MAN+= abort2.2 \ 168 accept.2 \ 169 access.2 \ 170 acct.2 \ 171 adjtime.2 \ 172 aio_cancel.2 \ 173 aio_error.2 \ 174 aio_fsync.2 \ 175 aio_mlock.2 \ 176 aio_read.2 \ 177 aio_return.2 \ 178 aio_suspend.2 \ 179 aio_waitcomplete.2 \ 180 aio_write.2 \ 181 auxv.3 \ 182 bind.2 \ 183 bindat.2 \ 184 brk.2 \ 185 cap_enter.2 \ 186 cap_fcntls_limit.2 \ 187 cap_ioctls_limit.2 \ 188 cap_rights_limit.2 \ 189 chdir.2 \ 190 chflags.2 \ 191 chmod.2 \ 192 chown.2 \ 193 chroot.2 \ 194 clock_gettime.2 \ 195 close.2 \ 196 closefrom.2 \ 197 connect.2 \ 198 connectat.2 \ 199 copy_file_range.2 \ 200 cpuset.2 \ 201 cpuset_getaffinity.2 \ 202 cpuset_getdomain.2 \ 203 creat.2 \ 204 dup.2 \ 205 eventfd.2 \ 206 execve.2 \ 207 _exit.2 \ 208 extattr_get_file.2 \ 209 fcntl.2 \ 210 ffclock.2 \ 211 fhlink.2 \ 212 fhopen.2 \ 213 fhreadlink.2 \ 214 flock.2 \ 215 fork.2 \ 216 fspacectl.2 \ 217 fsync.2 \ 218 getdirentries.2 \ 219 getdtablesize.2 \ 220 getfh.2 \ 221 getfsstat.2 \ 222 getgid.2 \ 223 getgroups.2 \ 224 getitimer.2 \ 225 getlogin.2 \ 226 getloginclass.2 \ 227 getpeername.2 \ 228 getpgrp.2 \ 229 getpid.2 \ 230 getpriority.2 \ 231 getrandom.2 \ 232 getrlimit.2 \ 233 getrlimitusage.2 \ 234 getrusage.2 \ 235 getsid.2 \ 236 getsockname.2 \ 237 getsockopt.2 \ 238 gettimeofday.2 \ 239 getuid.2 \ 240 inotify.2 \ 241 intro.2 \ 242 ioctl.2 \ 243 issetugid.2 \ 244 jail.2 \ 245 kcmp.2 \ 246 kenv.2 \ 247 kill.2 \ 248 kldfind.2 \ 249 kldfirstmod.2 \ 250 kldload.2 \ 251 kldnext.2 \ 252 kldstat.2 \ 253 kldsym.2 \ 254 kldunload.2 \ 255 kqueue.2 \ 256 ktrace.2 \ 257 link.2 \ 258 lio_listio.2 \ 259 listen.2 \ 260 lseek.2 \ 261 madvise.2 \ 262 membarrier.2 \ 263 mincore.2 \ 264 minherit.2 \ 265 mkdir.2 \ 266 mkfifo.2 \ 267 mknod.2 \ 268 mlock.2 \ 269 mlockall.2 \ 270 mmap.2 \ 271 modfind.2 \ 272 modnext.2 \ 273 modstat.2 \ 274 mount.2 \ 275 mprotect.2 \ 276 mq_close.2 \ 277 mq_getattr.2 \ 278 mq_notify.2 \ 279 mq_open.2 \ 280 mq_receive.2 \ 281 mq_send.2 \ 282 mq_setattr.2 \ 283 mq_unlink.2 \ 284 msgctl.2 \ 285 msgget.2 \ 286 msgrcv.2 \ 287 msgsnd.2 \ 288 msync.2 \ 289 munmap.2 \ 290 nanosleep.2 \ 291 nfssvc.2 \ 292 ntp_adjtime.2 \ 293 open.2 \ 294 pathconf.2 \ 295 pdfork.2 \ 296 pipe.2 \ 297 poll.2 \ 298 posix_fadvise.2 \ 299 posix_fallocate.2 \ 300 posix_openpt.2 \ 301 procctl.2 \ 302 profil.2 \ 303 pselect.2 \ 304 ptrace.2 \ 305 quotactl.2 \ 306 rctl_add_rule.2 \ 307 read.2 \ 308 readlink.2 \ 309 reboot.2 \ 310 recv.2 \ 311 rename.2 \ 312 revoke.2 \ 313 rfork.2 \ 314 rmdir.2 \ 315 rtprio.2 \ 316 sched_get_priority_max.2 \ 317 sched_getcpu.3 \ 318 sched_setparam.2 \ 319 sched_setscheduler.2 \ 320 sched_yield.2 \ 321 sctp_generic_recvmsg.2 \ 322 sctp_generic_sendmsg.2 \ 323 sctp_peeloff.2 \ 324 select.2 \ 325 semctl.2 \ 326 semget.2 \ 327 semop.2 \ 328 send.2 \ 329 setcred.2 \ 330 setfib.2 \ 331 sendfile.2 \ 332 setgroups.2 \ 333 setpgid.2 \ 334 setregid.2 \ 335 setresuid.2 \ 336 setreuid.2 \ 337 setsid.2 \ 338 setuid.2 \ 339 shmat.2 \ 340 shmctl.2 \ 341 shmget.2 \ 342 shm_open.2 \ 343 shutdown.2 \ 344 sigaction.2 \ 345 sigaltstack.2 \ 346 sigfastblock.2 \ 347 sigpending.2 \ 348 sigprocmask.2 \ 349 sigqueue.2 \ 350 sigreturn.2 \ 351 sigstack.2 \ 352 sigsuspend.2 \ 353 sigwait.2 \ 354 sigwaitinfo.2 \ 355 socket.2 \ 356 socketpair.2 \ 357 stat.2 \ 358 statfs.2 \ 359 swapon.2 \ 360 symlink.2 \ 361 sync.2 \ 362 sysarch.2 \ 363 syscall.2 \ 364 thr_exit.2 \ 365 thr_kill.2 \ 366 thr_new.2 \ 367 thr_self.2 \ 368 thr_set_name.2 \ 369 thr_suspend.2 \ 370 thr_wake.2 \ 371 timer_create.2 \ 372 timer_delete.2 \ 373 timer_settime.2 \ 374 timerfd.2 \ 375 truncate.2 \ 376 umask.2 \ 377 undelete.2 \ 378 unlink.2 \ 379 utimensat.2 \ 380 utimes.2 \ 381 utrace.2 \ 382 uuidgen.2 \ 383 vfork.2 \ 384 wait.2 \ 385 write.2 \ 386 _umtx_op.2 387 388MAN+= \ 389 getpagesize.3 \ 390 getpagesizes.3 \ 391 lockf.3 \ 392 rfork_thread.3 \ 393 sleep.3 \ 394 usleep.3 395 396MLINKS+=aio_read.2 aio_readv.2 \ 397 aio_read.2 aio_read2.2 398MLINKS+=aio_write.2 aio_writev.2 \ 399 aio_write.2 aio_write2.2 400MLINKS+=accept.2 accept4.2 401MLINKS+=access.2 eaccess.2 \ 402 access.2 faccessat.2 403MLINKS+=auxv.3 elf_aux_info.3 404MLINKS+=brk.2 sbrk.2 405MLINKS+=cap_enter.2 cap_getmode.2 406MLINKS+=cap_fcntls_limit.2 cap_fcntls_get.2 407MLINKS+=cap_ioctls_limit.2 cap_ioctls_get.2 408MLINKS+=chdir.2 fchdir.2 409MLINKS+=chflags.2 chflagsat.2 \ 410 chflags.2 fchflags.2 \ 411 chflags.2 lchflags.2 412MLINKS+=chmod.2 fchmod.2 \ 413 chmod.2 fchmodat.2 \ 414 chmod.2 lchmod.2 415MLINKS+=chown.2 fchown.2 \ 416 chown.2 fchownat.2 \ 417 chown.2 lchown.2 418MLINKS+=chroot.2 fchroot.2 419MLINKS+=clock_gettime.2 clock_getres.2 \ 420 clock_gettime.2 clock_settime.2 421MLINKS+=closefrom.2 close_range.2 422MLINKS+=nanosleep.2 clock_nanosleep.2 423MLINKS+=cpuset.2 cpuset_getid.2 \ 424 cpuset.2 cpuset_setid.2 425MLINKS+=cpuset_getaffinity.2 cpuset_setaffinity.2 426MLINKS+=cpuset_getdomain.2 cpuset_setdomain.2 427MLINKS+=dup.2 dup2.2 428MLINKS+=eventfd.2 eventfd_read.3 \ 429 eventfd.2 eventfd_write.3 430MLINKS+=execve.2 fexecve.2 431MLINKS+=extattr_get_file.2 extattr.2 \ 432 extattr_get_file.2 extattr_delete_fd.2 \ 433 extattr_get_file.2 extattr_delete_file.2 \ 434 extattr_get_file.2 extattr_delete_link.2 \ 435 extattr_get_file.2 extattr_get_fd.2 \ 436 extattr_get_file.2 extattr_get_link.2 \ 437 extattr_get_file.2 extattr_list_fd.2 \ 438 extattr_get_file.2 extattr_list_file.2 \ 439 extattr_get_file.2 extattr_list_link.2 \ 440 extattr_get_file.2 extattr_set_fd.2 \ 441 extattr_get_file.2 extattr_set_file.2 \ 442 extattr_get_file.2 extattr_set_link.2 443MLINKS+=ffclock.2 ffclock_getcounter.2 \ 444 ffclock.2 ffclock_getestimate.2 \ 445 ffclock.2 ffclock_setestimate.2 446MLINKS+=fhlink.2 fhlinkat.2 447MLINKS+=fhopen.2 fhstat.2 fhopen.2 fhstatfs.2 448MLINKS+=fork.2 _Fork.2 449MLINKS+=fsync.2 fdatasync.2 450MLINKS+=getdirentries.2 getdents.2 451MLINKS+=getfh.2 lgetfh.2 \ 452 getfh.2 getfhat.2 453MLINKS+=getgid.2 getegid.2 454MLINKS+=getitimer.2 setitimer.2 455MLINKS+=getlogin.2 getlogin_r.3 456MLINKS+=getlogin.2 setlogin.2 457MLINKS+=getloginclass.2 setloginclass.2 458MLINKS+=getpgrp.2 getpgid.2 459MLINKS+=getpid.2 getppid.2 460MLINKS+=getpriority.2 setpriority.2 461MLINKS+=getrlimit.2 setrlimit.2 462MLINKS+=getsockopt.2 setsockopt.2 463MLINKS+=gettimeofday.2 settimeofday.2 464MLINKS+=getuid.2 geteuid.2 465MLINKS+=inotify.2 inotify_init.2 \ 466 inotify.2 inotify_init1.2 \ 467 inotify.2 inotify_add_watch.2 \ 468 inotify.2 inotify_add_watch_at.2 \ 469 inotify.2 inotify_rm_watch.2 470MLINKS+=intro.2 errno.2 471MLINKS+=jail.2 jail_attach.2 \ 472 jail.2 jail_get.2 \ 473 jail.2 jail_remove.2 \ 474 jail.2 jail_set.2 475MLINKS+=kldunload.2 kldunloadf.2 476MLINKS+=kqueue.2 kevent.2 \ 477 kqueue.2 kqueue1.2 \ 478 kqueue.2 kqueuex.2 \ 479 kqueue.2 EV_SET.3 480MLINKS+=link.2 linkat.2 481MLINKS+=madvise.2 posix_madvise.2 482MLINKS+=mkdir.2 mkdirat.2 483MLINKS+=mkfifo.2 mkfifoat.2 484MLINKS+=mknod.2 mknodat.2 485MLINKS+=mlock.2 munlock.2 486MLINKS+=mlockall.2 munlockall.2 487MLINKS+=modnext.2 modfnext.2 488MLINKS+=mount.2 nmount.2 \ 489 mount.2 unmount.2 490MLINKS+=mq_receive.2 mq_timedreceive.2 491MLINKS+=mq_send.2 mq_timedsend.2 492MLINKS+=ntp_adjtime.2 ntp_gettime.2 493MLINKS+=open.2 openat.2 494MLINKS+=pathconf.2 fpathconf.2 495MLINKS+=pathconf.2 lpathconf.2 496MLINKS+=pdfork.2 pdgetpid.2\ 497 pdfork.2 pdkill.2 498MLINKS+=pipe.2 pipe2.2 499MLINKS+=poll.2 ppoll.2 500MLINKS+=rctl_add_rule.2 rctl_get_limits.2 \ 501 rctl_add_rule.2 rctl_get_racct.2 \ 502 rctl_add_rule.2 rctl_get_rules.2 \ 503 rctl_add_rule.2 rctl_remove_rule.2 504MLINKS+=read.2 pread.2 \ 505 read.2 preadv.2 \ 506 read.2 readv.2 507MLINKS+=readlink.2 readlinkat.2 508MLINKS+=recv.2 recvfrom.2 \ 509 recv.2 recvmmsg.2 \ 510 recv.2 recvmsg.2 511MLINKS+=rename.2 renameat.2 512MLINKS+=rtprio.2 rtprio_thread.2 513MLINKS+=sched_get_priority_max.2 sched_get_priority_min.2 \ 514 sched_get_priority_max.2 sched_rr_get_interval.2 515MLINKS+=sched_setparam.2 sched_getparam.2 516MLINKS+=sched_setscheduler.2 sched_getscheduler.2 517MLINKS+=sctp_generic_sendmsg.2 sctp_generic_sendmsg_iov.2 518MLINKS+=select.2 FD_CLR.3 \ 519 select.2 FD_ISSET.3 \ 520 select.2 FD_SET.3 \ 521 select.2 FD_ZERO.3 522MLINKS+=send.2 sendmmsg.2 \ 523 send.2 sendmsg.2 \ 524 send.2 sendto.2 525MLINKS+=setpgid.2 setpgrp.2 526MLINKS+=setresuid.2 getresgid.2 \ 527 setresuid.2 getresuid.2 \ 528 setresuid.2 setresgid.2 529MLINKS+=setuid.2 setegid.2 \ 530 setuid.2 seteuid.2 \ 531 setuid.2 setgid.2 532MLINKS+=shmat.2 shmdt.2 533MLINKS+=shm_open.2 memfd_create.3 \ 534 shm_open.2 shm_create_largepage.3 \ 535 shm_open.2 shm_unlink.2 \ 536 shm_open.2 shm_rename.2 537MLINKS+=sigwaitinfo.2 sigtimedwait.2 538MLINKS+=stat.2 fstat.2 \ 539 stat.2 fstatat.2 \ 540 stat.2 lstat.2 541MLINKS+=statfs.2 fstatfs.2 542MLINKS+=swapon.2 swapoff.2 543MLINKS+=symlink.2 symlinkat.2 544MLINKS+=syscall.2 __syscall.2 545MLINKS+=timer_settime.2 timer_getoverrun.2 \ 546 timer_settime.2 timer_gettime.2 547MLINKS+=timerfd.2 timerfd_create.2 \ 548 timerfd.2 timerfd_gettime.2 \ 549 timerfd.2 timerfd_settime.2 550MLINKS+=thr_kill.2 thr_kill2.2 551MLINKS+=truncate.2 ftruncate.2 552MLINKS+=unlink.2 unlinkat.2 553MLINKS+=unlink.2 funlinkat.2 554MLINKS+=utimensat.2 futimens.2 555MLINKS+=utimes.2 futimes.2 \ 556 utimes.2 futimesat.2 \ 557 utimes.2 lutimes.2 558MLINKS+=wait.2 wait3.2 \ 559 wait.2 wait4.2 \ 560 wait.2 waitpid.2 \ 561 wait.2 waitid.2 \ 562 wait.2 wait6.2 563MLINKS+=write.2 pwrite.2 \ 564 write.2 pwritev.2 \ 565 write.2 writev.2 566.endif # ${LIB} == "sys" 567