1 #!/usr/bin/env bash
2 # Copyright 2009 The Go Authors. All rights reserved.
3 # Use of this source code is governed by a BSD-style
4 # license that can be found in the LICENSE file.
5
6 # Generate Go code listing errors and other #defined constant
7 # values (ENAMETOOLONG etc.), by asking the preprocessor
8 # about the definitions.
9
10 unset LANG
11 export LC_ALL=C
12 export LC_CTYPE=C
13
14 if test -z "$GOARCH" -o -z "$GOOS"; then
15 echo 1>&2 "GOARCH or GOOS not defined in environment"
16 exit 1
17 fi
18
19 # Check that we are using the new build system if we should
20 if [[ "$GOOS" = "linux" ]] && [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then
21 echo 1>&2 "In the Docker based build system, mkerrors should not be called directly."
22 echo 1>&2 "See README.md"
23 exit 1
24 fi
25
26 if [[ "$GOOS" = "aix" ]]; then
27 CC=${CC:-gcc}
28 else
29 CC=${CC:-cc}
30 fi
31
32 if [[ "$GOOS" = "solaris" ]]; then
33 # Assumes GNU versions of utilities in PATH.
34 export PATH=/usr/gnu/bin:$PATH
35 fi
36
37 uname=$(uname)
38
39 includes_AIX='
40 #include <net/if.h>
41 #include <net/netopt.h>
42 #include <netinet/ip_mroute.h>
43 #include <sys/protosw.h>
44 #include <sys/stropts.h>
45 #include <sys/mman.h>
46 #include <sys/poll.h>
47 #include <sys/select.h>
48 #include <sys/termio.h>
49 #include <termios.h>
50 #include <fcntl.h>
51
52 #define AF_LOCAL AF_UNIX
53 '
54
55 includes_Darwin='
56 #define _DARWIN_C_SOURCE
57 #define KERNEL 1
58 #define _DARWIN_USE_64_BIT_INODE
59 #define __APPLE_USE_RFC_3542
60 #include <stdint.h>
61 #include <sys/stdio.h>
62 #include <sys/attr.h>
63 #include <sys/clonefile.h>
64 #include <sys/kern_control.h>
65 #include <sys/types.h>
66 #include <sys/event.h>
67 #include <sys/ptrace.h>
68 #include <sys/select.h>
69 #include <sys/socket.h>
70 #include <sys/stat.h>
71 #include <sys/un.h>
72 #include <sys/sockio.h>
73 #include <sys/sys_domain.h>
74 #include <sys/sysctl.h>
75 #include <sys/mman.h>
76 #include <sys/mount.h>
77 #include <sys/utsname.h>
78 #include <sys/wait.h>
79 #include <sys/xattr.h>
80 #include <sys/vsock.h>
81 #include <net/bpf.h>
82 #include <net/if.h>
83 #include <net/if_types.h>
84 #include <net/route.h>
85 #include <netinet/in.h>
86 #include <netinet/ip.h>
87 #include <termios.h>
88
89 // for backwards compatibility because moved TIOCREMOTE to Kernel.framework after MacOSX12.0.sdk.
90 #define TIOCREMOTE 0x80047469
91 '
92
93 includes_DragonFly='
94 #include <sys/types.h>
95 #include <sys/event.h>
96 #include <sys/select.h>
97 #include <sys/socket.h>
98 #include <sys/sockio.h>
99 #include <sys/stat.h>
100 #include <sys/sysctl.h>
101 #include <sys/mman.h>
102 #include <sys/mount.h>
103 #include <sys/wait.h>
104 #include <sys/ioctl.h>
105 #include <net/bpf.h>
106 #include <net/if.h>
107 #include <net/if_clone.h>
108 #include <net/if_types.h>
109 #include <net/route.h>
110 #include <netinet/in.h>
111 #include <termios.h>
112 #include <netinet/ip.h>
113 #include <net/ip_mroute/ip_mroute.h>
114 '
115
116 includes_FreeBSD='
117 #include <sys/capsicum.h>
118 #include <sys/param.h>
119 #include <sys/types.h>
120 #include <sys/disk.h>
121 #include <sys/event.h>
122 #include <sys/sched.h>
123 #include <sys/select.h>
124 #include <sys/socket.h>
125 #include <sys/un.h>
126 #include <sys/sockio.h>
127 #include <sys/stat.h>
128 #include <sys/sysctl.h>
129 #include <sys/mman.h>
130 #include <sys/mount.h>
131 #include <sys/wait.h>
132 #include <sys/ioctl.h>
133 #include <sys/ptrace.h>
134 #include <net/bpf.h>
135 #include <net/if.h>
136 #include <net/if_types.h>
137 #include <net/route.h>
138 #include <netinet/in.h>
139 #include <termios.h>
140 #include <netinet/ip.h>
141 #include <netinet/ip_mroute.h>
142 #include <sys/extattr.h>
143
144 #if __FreeBSD__ >= 10
145 #define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
146 #undef SIOCAIFADDR
147 #define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
148 #undef SIOCSIFPHYADDR
149 #define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
150 #endif
151 '
152
153 includes_Linux='
154 #define _LARGEFILE_SOURCE
155 #define _LARGEFILE64_SOURCE
156 #ifndef __LP64__
157 #define _FILE_OFFSET_BITS 64
158 #endif
159 #define _GNU_SOURCE
160
161 // See the description in unix/linux/types.go
162 #if defined(__ARM_EABI__) || \
163 (defined(__mips__) && (_MIPS_SIM == _ABIO32)) || \
164 (defined(__powerpc__) && (!defined(__powerpc64__)))
165 # ifdef _TIME_BITS
166 # undef _TIME_BITS
167 # endif
168 # define _TIME_BITS 32
169 #endif
170
171 // <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
172 // these structures. We just include them copied from <bits/termios.h>.
173 #if defined(__powerpc__)
174 struct sgttyb {
175 char sg_ispeed;
176 char sg_ospeed;
177 char sg_erase;
178 char sg_kill;
179 short sg_flags;
180 };
181
182 struct tchars {
183 char t_intrc;
184 char t_quitc;
185 char t_startc;
186 char t_stopc;
187 char t_eofc;
188 char t_brkc;
189 };
190
191 struct ltchars {
192 char t_suspc;
193 char t_dsuspc;
194 char t_rprntc;
195 char t_flushc;
196 char t_werasc;
197 char t_lnextc;
198 };
199 #endif
200
201 #include <bits/sockaddr.h>
202 #include <sys/epoll.h>
203 #include <sys/eventfd.h>
204 #include <sys/inotify.h>
205 #include <sys/ioctl.h>
206 #include <sys/mman.h>
207 #include <sys/mount.h>
208 #include <sys/prctl.h>
209 #include <sys/stat.h>
210 #include <sys/types.h>
211 #include <sys/time.h>
212 #include <sys/select.h>
213 #include <sys/signalfd.h>
214 #include <sys/socket.h>
215 #include <sys/timerfd.h>
216 #include <sys/uio.h>
217 #include <sys/xattr.h>
218 #include <netinet/udp.h>
219 #include <linux/audit.h>
220 #include <linux/bpf.h>
221 #include <linux/can.h>
222 #include <linux/can/error.h>
223 #include <linux/can/netlink.h>
224 #include <linux/can/raw.h>
225 #include <linux/capability.h>
226 #include <linux/cryptouser.h>
227 #include <linux/devlink.h>
228 #include <linux/dm-ioctl.h>
229 #include <linux/elf.h>
230 #include <linux/errqueue.h>
231 #include <linux/ethtool_netlink.h>
232 #include <linux/falloc.h>
233 #include <linux/fanotify.h>
234 #include <linux/fib_rules.h>
235 #include <linux/filter.h>
236 #include <linux/fs.h>
237 #include <linux/fscrypt.h>
238 #include <linux/fsverity.h>
239 #include <linux/genetlink.h>
240 #include <linux/hdreg.h>
241 #include <linux/hidraw.h>
242 #include <linux/if.h>
243 #include <linux/if_addr.h>
244 #include <linux/if_alg.h>
245 #include <linux/if_arp.h>
246 #include <linux/if_ether.h>
247 #include <linux/if_ppp.h>
248 #include <linux/if_tun.h>
249 #include <linux/if_packet.h>
250 #include <linux/if_xdp.h>
251 #include <linux/input.h>
252 #include <linux/kcm.h>
253 #include <linux/kexec.h>
254 #include <linux/keyctl.h>
255 #include <linux/landlock.h>
256 #include <linux/loop.h>
257 #include <linux/lwtunnel.h>
258 #include <linux/magic.h>
259 #include <linux/mei.h>
260 #include <linux/memfd.h>
261 #include <linux/module.h>
262 #include <linux/mount.h>
263 #include <linux/netfilter/nfnetlink.h>
264 #include <linux/netfilter/nf_tables.h>
265 #include <linux/netlink.h>
266 #include <linux/net_namespace.h>
267 #include <linux/nfc.h>
268 #include <linux/nsfs.h>
269 #include <linux/perf_event.h>
270 #include <linux/pps.h>
271 #include <linux/ptp_clock.h>
272 #include <linux/ptrace.h>
273 #include <linux/random.h>
274 #include <linux/reboot.h>
275 #include <linux/rtc.h>
276 #include <linux/rtnetlink.h>
277 #include <linux/sched.h>
278 #include <linux/seccomp.h>
279 #include <linux/serial.h>
280 #include <linux/sock_diag.h>
281 #include <linux/sockios.h>
282 #include <linux/taskstats.h>
283 #include <linux/tipc.h>
284 #include <linux/vm_sockets.h>
285 #include <linux/wait.h>
286 #include <linux/watchdog.h>
287 #include <linux/wireguard.h>
288
289 #include <mtd/ubi-user.h>
290 #include <mtd/mtd-user.h>
291 #include <net/route.h>
292
293 #if defined(__sparc__)
294 // On sparc{,64}, the kernel defines struct termios2 itself which clashes with the
295 // definition in glibc. As only the error constants are needed here, include the
296 // generic termibits.h (which is included by termbits.h on sparc).
297 #include <asm-generic/termbits.h>
298 #else
299 #include <asm/termbits.h>
300 #endif
301
302 #ifndef PTRACE_GETREGS
303 #define PTRACE_GETREGS 0xc
304 #endif
305
306 #ifndef PTRACE_SETREGS
307 #define PTRACE_SETREGS 0xd
308 #endif
309
310 #ifdef SOL_BLUETOOTH
311 // SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
312 // but it is already in bluetooth_linux.go
313 #undef SOL_BLUETOOTH
314 #endif
315
316 // Certain constants are missing from the fs/crypto UAPI
317 #define FS_KEY_DESC_PREFIX "fscrypt:"
318 #define FS_KEY_DESC_PREFIX_SIZE 8
319 #define FS_MAX_KEY_SIZE 64
320
321 // The code generator produces -0x1 for (~0), but an unsigned value is necessary
322 // for the tipc_subscr timeout __u32 field.
323 #undef TIPC_WAIT_FOREVER
324 #define TIPC_WAIT_FOREVER 0xffffffff
325
326 // Copied from linux/netfilter/nf_nat.h
327 // Including linux/netfilter/nf_nat.h here causes conflicts between linux/in.h
328 // and netinet/in.h.
329 #define NF_NAT_RANGE_MAP_IPS (1 << 0)
330 #define NF_NAT_RANGE_PROTO_SPECIFIED (1 << 1)
331 #define NF_NAT_RANGE_PROTO_RANDOM (1 << 2)
332 #define NF_NAT_RANGE_PERSISTENT (1 << 3)
333 #define NF_NAT_RANGE_PROTO_RANDOM_FULLY (1 << 4)
334 #define NF_NAT_RANGE_PROTO_OFFSET (1 << 5)
335 #define NF_NAT_RANGE_NETMAP (1 << 6)
336 #define NF_NAT_RANGE_PROTO_RANDOM_ALL \
337 (NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PROTO_RANDOM_FULLY)
338 #define NF_NAT_RANGE_MASK \
339 (NF_NAT_RANGE_MAP_IPS | NF_NAT_RANGE_PROTO_SPECIFIED | \
340 NF_NAT_RANGE_PROTO_RANDOM | NF_NAT_RANGE_PERSISTENT | \
341 NF_NAT_RANGE_PROTO_RANDOM_FULLY | NF_NAT_RANGE_PROTO_OFFSET | \
342 NF_NAT_RANGE_NETMAP)
343
344 // Copied from linux/hid.h.
345 // Keep in sync with the size of the referenced fields.
346 #define _HIDIOCGRAWNAME_LEN 128 // sizeof_field(struct hid_device, name)
347 #define _HIDIOCGRAWPHYS_LEN 64 // sizeof_field(struct hid_device, phys)
348 #define _HIDIOCGRAWUNIQ_LEN 64 // sizeof_field(struct hid_device, uniq)
349
350 #define _HIDIOCGRAWNAME HIDIOCGRAWNAME(_HIDIOCGRAWNAME_LEN)
351 #define _HIDIOCGRAWPHYS HIDIOCGRAWPHYS(_HIDIOCGRAWPHYS_LEN)
352 #define _HIDIOCGRAWUNIQ HIDIOCGRAWUNIQ(_HIDIOCGRAWUNIQ_LEN)
353
354 // Renamed in v6.16, commit c6d732c38f93 ("net: ethtool: remove duplicate defines for family info")
355 #define ETHTOOL_FAMILY_NAME ETHTOOL_GENL_NAME
356 #define ETHTOOL_FAMILY_VERSION ETHTOOL_GENL_VERSION
357 '
358
359 includes_NetBSD='
360 #include <sys/types.h>
361 #include <sys/param.h>
362 #include <sys/event.h>
363 #include <sys/extattr.h>
364 #include <sys/mman.h>
365 #include <sys/mount.h>
366 #include <sys/sched.h>
367 #include <sys/select.h>
368 #include <sys/socket.h>
369 #include <sys/sockio.h>
370 #include <sys/sysctl.h>
371 #include <sys/termios.h>
372 #include <sys/ttycom.h>
373 #include <sys/wait.h>
374 #include <net/bpf.h>
375 #include <net/if.h>
376 #include <net/if_types.h>
377 #include <net/route.h>
378 #include <netinet/in.h>
379 #include <netinet/in_systm.h>
380 #include <netinet/ip.h>
381 #include <netinet/ip_mroute.h>
382 #include <netinet/if_ether.h>
383
384 // Needed since <sys/param.h> refers to it...
385 #define schedppq 1
386 '
387
388 includes_OpenBSD='
389 #include <sys/types.h>
390 #include <sys/param.h>
391 #include <sys/event.h>
392 #include <sys/mman.h>
393 #include <sys/mount.h>
394 #include <sys/select.h>
395 #include <sys/sched.h>
396 #include <sys/socket.h>
397 #include <sys/sockio.h>
398 #include <sys/stat.h>
399 #include <sys/sysctl.h>
400 #include <sys/termios.h>
401 #include <sys/ttycom.h>
402 #include <sys/unistd.h>
403 #include <sys/wait.h>
404 #include <net/bpf.h>
405 #include <net/if.h>
406 #include <net/if_types.h>
407 #include <net/if_var.h>
408 #include <net/route.h>
409 #include <netinet/in.h>
410 #include <netinet/in_systm.h>
411 #include <netinet/ip.h>
412 #include <netinet/ip_mroute.h>
413 #include <netinet/if_ether.h>
414 #include <net/if_bridge.h>
415
416 // We keep some constants not supported in OpenBSD 5.5 and beyond for
417 // the promise of compatibility.
418 #define EMUL_ENABLED 0x1
419 #define EMUL_NATIVE 0x2
420 #define IPV6_FAITH 0x1d
421 #define IPV6_OPTIONS 0x1
422 #define IPV6_RTHDR_STRICT 0x1
423 #define IPV6_SOCKOPT_RESERVED1 0x3
424 #define SIOCGIFGENERIC 0xc020693a
425 #define SIOCSIFGENERIC 0x80206939
426 #define WALTSIG 0x4
427 '
428
429 includes_SunOS='
430 #include <limits.h>
431 #include <sys/types.h>
432 #include <sys/select.h>
433 #include <sys/socket.h>
434 #include <sys/sockio.h>
435 #include <sys/stat.h>
436 #include <sys/stream.h>
437 #include <sys/mman.h>
438 #include <sys/wait.h>
439 #include <sys/ioctl.h>
440 #include <sys/mkdev.h>
441 #include <net/bpf.h>
442 #include <net/if.h>
443 #include <net/if_arp.h>
444 #include <net/if_types.h>
445 #include <net/route.h>
446 #include <netinet/icmp6.h>
447 #include <netinet/in.h>
448 #include <netinet/ip.h>
449 #include <netinet/ip_mroute.h>
450 #include <termios.h>
451 '
452
453
454 includes='
455 #include <sys/types.h>
456 #include <sys/file.h>
457 #include <fcntl.h>
458 #include <dirent.h>
459 #include <sys/socket.h>
460 #include <netinet/in.h>
461 #include <netinet/ip.h>
462 #include <netinet/ip6.h>
463 #include <netinet/tcp.h>
464 #include <errno.h>
465 #include <sys/signal.h>
466 #include <signal.h>
467 #include <sys/resource.h>
468 #include <time.h>
469 '
470 ccflags="$@"
471
472 # Write go tool cgo -godefs input.
473 (
474 echo package unix
475 echo
476 echo '/*'
477 indirect="includes_$(uname)"
478 echo "${!indirect} $includes"
479 echo '*/'
480 echo 'import "C"'
481 echo 'import "syscall"'
482 echo
483 echo 'const ('
484
485 # The gcc command line prints all the #defines
486 # it encounters while processing the input
487 echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
488 awk '
489 $1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
490
491 $2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
492 $2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
493 $2 ~ /^(SCM_SRCRT)$/ {next}
494 $2 ~ /^(MAP_FAILED)$/ {next}
495 $2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
496
497 $2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
498 $2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
499
500 $2 !~ /^ECCAPBITS/ &&
501 $2 !~ /^ETH_/ &&
502 $2 !~ /^EPROC_/ &&
503 $2 !~ /^EQUIV_/ &&
504 $2 !~ /^EXPR_/ &&
505 $2 !~ /^EVIOC/ &&
506 $2 ~ /^E[A-Z0-9_]+$/ ||
507 $2 ~ /^B[0-9_]+$/ ||
508 $2 ~ /^(OLD|NEW)DEV$/ ||
509 $2 == "BOTHER" ||
510 $2 ~ /^CI?BAUD(EX)?$/ ||
511 $2 == "IBSHIFT" ||
512 $2 ~ /^V[A-Z0-9]+$/ ||
513 $2 ~ /^CS[A-Z0-9]/ ||
514 $2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
515 $2 ~ /^IGN/ ||
516 $2 ~ /^IX(ON|ANY|OFF)$/ ||
517 $2 ~ /^IN(LCR|PCK)$/ ||
518 $2 !~ "X86_CR3_PCID_NOFLUSH" &&
519 $2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
520 $2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
521 $2 == "BRKINT" ||
522 $2 == "HUPCL" ||
523 $2 == "PENDIN" ||
524 $2 == "TOSTOP" ||
525 $2 == "XCASE" ||
526 $2 == "ALTWERASE" ||
527 $2 == "NOKERNINFO" ||
528 $2 == "NFDBITS" ||
529 $2 ~ /^PAR/ ||
530 $2 ~ /^SIG[^_]/ ||
531 $2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
532 $2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
533 $2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
534 $2 ~ /^(DT|EI|ELF|EV|NN|NT|PF|SHF|SHN|SHT|STB|STT|VER)_/ ||
535 $2 ~ /^O?XTABS$/ ||
536 $2 ~ /^TC[IO](ON|OFF)$/ ||
537 $2 ~ /^IN_/ ||
538 $2 ~ /^KCM/ ||
539 $2 ~ /^LANDLOCK_/ ||
540 $2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
541 $2 ~ /^LO_(KEY|NAME)_SIZE$/ ||
542 $2 ~ /^LOOP_(CLR|CTL|GET|SET)_/ ||
543 $2 == "LOOP_CONFIGURE" ||
544 $2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|TCP|MCAST|EVFILT|NOTE|SHUT|PROT|MAP|MREMAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR|LOCAL|TCPOPT|UDP)_/ ||
545 $2 ~ /^NFC_(GENL|PROTO|COMM|RF|SE|DIRECTION|LLCP|SOCKPROTO)_/ ||
546 $2 ~ /^NFC_.*_(MAX)?SIZE$/ ||
547 $2 ~ /^PTP_/ ||
548 $2 ~ /^RAW_PAYLOAD_/ ||
549 $2 ~ /^[US]F_/ ||
550 $2 ~ /^TP_STATUS_/ ||
551 $2 ~ /^FALLOC_/ ||
552 $2 ~ /^ICMPV?6?_(FILTER|SEC)/ ||
553 $2 == "SOMAXCONN" ||
554 $2 == "NAME_MAX" ||
555 $2 == "IFNAMSIZ" ||
556 $2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
557 $2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
558 $2 ~ /^HW_MACHINE$/ ||
559 $2 ~ /^SYSCTL_VERS/ ||
560 $2 !~ "MNT_BITS" &&
561 $2 ~ /^(MS|MNT|MOUNT|UMOUNT)_/ ||
562 $2 ~ /^NS_GET_/ ||
563 $2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
564 $2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT|PIOD|TFD)_/ ||
565 $2 ~ /^KEXEC_/ ||
566 $2 ~ /^LINUX_REBOOT_CMD_/ ||
567 $2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
568 $2 ~ /^MODULE_INIT_/ ||
569 $2 !~ "NLA_TYPE_MASK" &&
570 $2 !~ /^RTC_VL_(ACCURACY|BACKUP|DATA)/ &&
571 $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
572 $2 ~ /^SOCK_|SK_DIAG_|SKNLGRP_$/ ||
573 $2 ~ /^(CONNECT|SAE)_/ ||
574 $2 ~ /^FIORDCHK$/ ||
575 $2 ~ /^SIOC/ ||
576 $2 ~ /^TIOC/ ||
577 $2 ~ /^TCGET/ ||
578 $2 ~ /^TCSET/ ||
579 $2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
580 $2 !~ "RTF_BITS" &&
581 $2 ~ /^(IFF|IFT|NET_RT|RTM(GRP)?|RTF|RTV|RTA|RTAX)_/ ||
582 $2 ~ /^BIOC/ ||
583 $2 ~ /^DIOC/ ||
584 $2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
585 $2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
586 $2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
587 $2 ~ /^CLONE_[A-Z_]+/ ||
588 $2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+|BPF_F_LINK)$/ &&
589 $2 ~ /^(BPF|DLT)_/ ||
590 $2 ~ /^AUDIT_/ ||
591 $2 ~ /^(CLOCK|TIMER)_/ ||
592 $2 ~ /^CAN_/ ||
593 $2 ~ /^CAP_/ ||
594 $2 ~ /^CP_/ ||
595 $2 ~ /^CPUSTATES$/ ||
596 $2 ~ /^CTLIOCGINFO$/ ||
597 $2 ~ /^ALG_/ ||
598 $2 ~ /^FI(CLONE|DEDUPERANGE)/ ||
599 $2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE)/ ||
600 $2 ~ /^FS_IOC_.*(ENCRYPTION|VERITY|[GS]ETFLAGS)/ ||
601 $2 ~ /^FS_VERITY_/ ||
602 $2 ~ /^FSCRYPT_/ ||
603 $2 ~ /^DM_/ ||
604 $2 ~ /^GRND_/ ||
605 $2 ~ /^RND/ ||
606 $2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
607 $2 ~ /^KEYCTL_/ ||
608 $2 ~ /^PERF_/ ||
609 $2 ~ /^SECCOMP_/ ||
610 $2 ~ /^SEEK_/ ||
611 $2 ~ /^SCHED_/ ||
612 $2 ~ /^SPLICE_/ ||
613 $2 ~ /^SYNC_FILE_RANGE_/ ||
614 $2 !~ /IOC_MAGIC/ &&
615 $2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
616 $2 ~ /^(VM|VMADDR)_/ ||
617 $2 ~ /^(IOCTL_VM_SOCKETS_|IOCTL_MEI_)/ ||
618 $2 ~ /^(TASKSTATS|TS)_/ ||
619 $2 ~ /^CGROUPSTATS_/ ||
620 $2 ~ /^GENL_/ ||
621 $2 ~ /^STATX_/ ||
622 $2 ~ /^RENAME/ ||
623 $2 ~ /^UBI_IOC[A-Z]/ ||
624 $2 ~ /^UTIME_/ ||
625 $2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
626 $2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
627 $2 ~ /^FSOPT_/ ||
628 $2 ~ /^WDIO[CFS]_/ ||
629 $2 ~ /^NFN/ ||
630 $2 !~ /^NFT_META_IIFTYPE/ &&
631 $2 ~ /^NFT_/ ||
632 $2 ~ /^NF_NAT_/ ||
633 $2 ~ /^XDP_/ ||
634 $2 ~ /^RWF_/ ||
635 $2 ~ /^(HDIO|WIN|SMART)_/ ||
636 $2 ~ /^CRYPTO_/ ||
637 $2 ~ /^TIPC_/ ||
638 $2 !~ "DEVLINK_RELOAD_LIMITS_VALID_MASK" &&
639 $2 ~ /^DEVLINK_/ ||
640 $2 ~ /^ETHTOOL_/ ||
641 $2 ~ /^LWTUNNEL_IP/ ||
642 $2 ~ /^ITIMER_/ ||
643 $2 !~ "WMESGLEN" &&
644 $2 ~ /^W[A-Z0-9]+$/ ||
645 $2 ~ /^P_/ ||
646 $2 ~/^PPPIOC/ ||
647 $2 ~ /^FAN_|FANOTIFY_/ ||
648 $2 == "HID_MAX_DESCRIPTOR_SIZE" ||
649 $2 ~ /^_?HIDIOC/ ||
650 $2 ~ /^BUS_(USB|HIL|BLUETOOTH|VIRTUAL)$/ ||
651 $2 ~ /^MTD/ ||
652 $2 ~ /^OTP/ ||
653 $2 ~ /^MEM/ ||
654 $2 ~ /^WG/ ||
655 $2 ~ /^FIB_RULE_/ ||
656 $2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE|IOMIN$|IOOPT$|ALIGNOFF$|DISCARD|ROTATIONAL$|ZEROOUT$|GETDISKSEQ$)/ {printf("\t%s = C.%s\n", $2, $2)}
657 $2 ~ /^__WCOREFLAG$/ {next}
658 $2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
659
660 {next}
661 ' | sort
662
663 echo ')'
664 ) >_const.go
665
666 # Pull out the error names for later.
667 errors=$(
668 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
669 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
670 sort
671 )
672
673 # Pull out the signal names for later.
674 signals=$(
675 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
676 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
677 grep -E -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
678 sort
679 )
680
681 # Again, writing regexps to a file.
682 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
683 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
684 sort >_error.grep
685 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
686 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
687 grep -E -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
688 sort >_signal.grep
689
690 echo '// mkerrors.sh' "$@"
691 echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
692 echo
693 echo "//go:build ${GOARCH} && ${GOOS}"
694 echo
695 go tool cgo -godefs -- "$@" _const.go >_error.out
696 cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
697 echo
698 echo '// Errors'
699 echo 'const ('
700 cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
701 echo ')'
702
703 echo
704 echo '// Signals'
705 echo 'const ('
706 cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
707 echo ')'
708
709 # Run C program to print error and syscall strings.
710 (
711 echo -E "
712 #include <stdio.h>
713 #include <stdlib.h>
714 #include <errno.h>
715 #include <ctype.h>
716 #include <string.h>
717 #include <signal.h>
718
719 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
720
721 enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
722
723 struct tuple {
724 int num;
725 const char *name;
726 };
727
728 struct tuple errors[] = {
729 "
730 for i in $errors
731 do
732 echo -E ' {'$i', "'$i'" },'
733 done
734
735 echo -E "
736 };
737
738 struct tuple signals[] = {
739 "
740 for i in $signals
741 do
742 echo -E ' {'$i', "'$i'" },'
743 done
744
745 # Use -E because on some systems bash builtin interprets \n itself.
746 echo -E '
747 };
748
749 static int
750 tuplecmp(const void *a, const void *b)
751 {
752 return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
753 }
754
755 int
756 main(void)
757 {
758 int i, e;
759 char buf[1024], *p;
760
761 printf("\n\n// Error table\n");
762 printf("var errorList = [...]struct {\n");
763 printf("\tnum syscall.Errno\n");
764 printf("\tname string\n");
765 printf("\tdesc string\n");
766 printf("} {\n");
767 qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
768 for(i=0; i<nelem(errors); i++) {
769 e = errors[i].num;
770 if(i > 0 && errors[i-1].num == e)
771 continue;
772 strncpy(buf, strerror(e), sizeof(buf) - 1);
773 buf[sizeof(buf) - 1] = '\0';
774 // lowercase first letter: Bad -> bad, but STREAM -> STREAM.
775 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
776 buf[0] += a - A;
777 printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
778 }
779 printf("}\n\n");
780
781 printf("\n\n// Signal table\n");
782 printf("var signalList = [...]struct {\n");
783 printf("\tnum syscall.Signal\n");
784 printf("\tname string\n");
785 printf("\tdesc string\n");
786 printf("} {\n");
787 qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
788 for(i=0; i<nelem(signals); i++) {
789 e = signals[i].num;
790 if(i > 0 && signals[i-1].num == e)
791 continue;
792 strncpy(buf, strsignal(e), sizeof(buf) - 1);
793 buf[sizeof(buf) - 1] = '\0';
794 // lowercase first letter: Bad -> bad, but STREAM -> STREAM.
795 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
796 buf[0] += a - A;
797 // cut trailing : number.
798 p = strrchr(buf, ":"[0]);
799 if(p)
800 *p = '\0';
801 printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
802 }
803 printf("}\n\n");
804
805 return 0;
806 }
807
808 '
809 ) >_errors.c
810
811 $CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
812
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