Text file src/pkg/cmd/vendor/golang.org/x/sys/unix/mkerrors.sh
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/termio.h>
48 #include <termios.h>
49 #include <fcntl.h>
50
51 #define AF_LOCAL AF_UNIX
52 '
53
54 includes_Darwin='
55 #define _DARWIN_C_SOURCE
56 #define KERNEL
57 #define _DARWIN_USE_64_BIT_INODE
58 #include <stdint.h>
59 #include <sys/attr.h>
60 #include <sys/types.h>
61 #include <sys/event.h>
62 #include <sys/ptrace.h>
63 #include <sys/socket.h>
64 #include <sys/sockio.h>
65 #include <sys/sysctl.h>
66 #include <sys/mman.h>
67 #include <sys/mount.h>
68 #include <sys/utsname.h>
69 #include <sys/wait.h>
70 #include <sys/xattr.h>
71 #include <net/bpf.h>
72 #include <net/if.h>
73 #include <net/if_types.h>
74 #include <net/route.h>
75 #include <netinet/in.h>
76 #include <netinet/ip.h>
77 #include <termios.h>
78 '
79
80 includes_DragonFly='
81 #include <sys/types.h>
82 #include <sys/event.h>
83 #include <sys/socket.h>
84 #include <sys/sockio.h>
85 #include <sys/stat.h>
86 #include <sys/sysctl.h>
87 #include <sys/mman.h>
88 #include <sys/mount.h>
89 #include <sys/wait.h>
90 #include <sys/ioctl.h>
91 #include <net/bpf.h>
92 #include <net/if.h>
93 #include <net/if_types.h>
94 #include <net/route.h>
95 #include <netinet/in.h>
96 #include <termios.h>
97 #include <netinet/ip.h>
98 #include <net/ip_mroute/ip_mroute.h>
99 '
100
101 includes_FreeBSD='
102 #include <sys/capsicum.h>
103 #include <sys/param.h>
104 #include <sys/types.h>
105 #include <sys/event.h>
106 #include <sys/socket.h>
107 #include <sys/sockio.h>
108 #include <sys/stat.h>
109 #include <sys/sysctl.h>
110 #include <sys/mman.h>
111 #include <sys/mount.h>
112 #include <sys/wait.h>
113 #include <sys/ioctl.h>
114 #include <net/bpf.h>
115 #include <net/if.h>
116 #include <net/if_types.h>
117 #include <net/route.h>
118 #include <netinet/in.h>
119 #include <termios.h>
120 #include <netinet/ip.h>
121 #include <netinet/ip_mroute.h>
122 #include <sys/extattr.h>
123
124 #if __FreeBSD__ >= 10
125 #define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10
126 #undef SIOCAIFADDR
127 #define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data
128 #undef SIOCSIFPHYADDR
129 #define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data
130 #endif
131 '
132
133 includes_Linux='
134 #define _LARGEFILE_SOURCE
135 #define _LARGEFILE64_SOURCE
136 #ifndef __LP64__
137 #define _FILE_OFFSET_BITS 64
138 #endif
139 #define _GNU_SOURCE
140
141 // <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of
142 // these structures. We just include them copied from <bits/termios.h>.
143 #if defined(__powerpc__)
144 struct sgttyb {
145 char sg_ispeed;
146 char sg_ospeed;
147 char sg_erase;
148 char sg_kill;
149 short sg_flags;
150 };
151
152 struct tchars {
153 char t_intrc;
154 char t_quitc;
155 char t_startc;
156 char t_stopc;
157 char t_eofc;
158 char t_brkc;
159 };
160
161 struct ltchars {
162 char t_suspc;
163 char t_dsuspc;
164 char t_rprntc;
165 char t_flushc;
166 char t_werasc;
167 char t_lnextc;
168 };
169 #endif
170
171 #include <bits/sockaddr.h>
172 #include <sys/epoll.h>
173 #include <sys/eventfd.h>
174 #include <sys/inotify.h>
175 #include <sys/ioctl.h>
176 #include <sys/mman.h>
177 #include <sys/mount.h>
178 #include <sys/prctl.h>
179 #include <sys/stat.h>
180 #include <sys/types.h>
181 #include <sys/time.h>
182 #include <sys/signalfd.h>
183 #include <sys/socket.h>
184 #include <sys/xattr.h>
185 #include <linux/errqueue.h>
186 #include <linux/if.h>
187 #include <linux/if_alg.h>
188 #include <linux/if_arp.h>
189 #include <linux/if_ether.h>
190 #include <linux/if_ppp.h>
191 #include <linux/if_tun.h>
192 #include <linux/if_packet.h>
193 #include <linux/if_addr.h>
194 #include <linux/falloc.h>
195 #include <linux/fanotify.h>
196 #include <linux/filter.h>
197 #include <linux/fs.h>
198 #include <linux/kexec.h>
199 #include <linux/keyctl.h>
200 #include <linux/magic.h>
201 #include <linux/memfd.h>
202 #include <linux/module.h>
203 #include <linux/netfilter/nfnetlink.h>
204 #include <linux/netlink.h>
205 #include <linux/net_namespace.h>
206 #include <linux/perf_event.h>
207 #include <linux/random.h>
208 #include <linux/reboot.h>
209 #include <linux/rtnetlink.h>
210 #include <linux/ptrace.h>
211 #include <linux/sched.h>
212 #include <linux/seccomp.h>
213 #include <linux/sockios.h>
214 #include <linux/wait.h>
215 #include <linux/icmpv6.h>
216 #include <linux/serial.h>
217 #include <linux/can.h>
218 #include <linux/vm_sockets.h>
219 #include <linux/taskstats.h>
220 #include <linux/genetlink.h>
221 #include <linux/watchdog.h>
222 #include <linux/hdreg.h>
223 #include <linux/rtc.h>
224 #include <linux/if_xdp.h>
225 #include <linux/cryptouser.h>
226 #include <mtd/ubi-user.h>
227 #include <net/route.h>
228
229 #if defined(__sparc__)
230 // On sparc{,64}, the kernel defines struct termios2 itself which clashes with the
231 // definition in glibc. As only the error constants are needed here, include the
232 // generic termibits.h (which is included by termbits.h on sparc).
233 #include <asm-generic/termbits.h>
234 #else
235 #include <asm/termbits.h>
236 #endif
237
238 #ifndef MSG_FASTOPEN
239 #define MSG_FASTOPEN 0x20000000
240 #endif
241
242 #ifndef PTRACE_GETREGS
243 #define PTRACE_GETREGS 0xc
244 #endif
245
246 #ifndef PTRACE_SETREGS
247 #define PTRACE_SETREGS 0xd
248 #endif
249
250 #ifndef SOL_NETLINK
251 #define SOL_NETLINK 270
252 #endif
253
254 #ifdef SOL_BLUETOOTH
255 // SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h
256 // but it is already in bluetooth_linux.go
257 #undef SOL_BLUETOOTH
258 #endif
259
260 // Certain constants are missing from the fs/crypto UAPI
261 #define FS_KEY_DESC_PREFIX "fscrypt:"
262 #define FS_KEY_DESC_PREFIX_SIZE 8
263 #define FS_MAX_KEY_SIZE 64
264 '
265
266 includes_NetBSD='
267 #include <sys/types.h>
268 #include <sys/param.h>
269 #include <sys/event.h>
270 #include <sys/extattr.h>
271 #include <sys/mman.h>
272 #include <sys/mount.h>
273 #include <sys/socket.h>
274 #include <sys/sockio.h>
275 #include <sys/sysctl.h>
276 #include <sys/termios.h>
277 #include <sys/ttycom.h>
278 #include <sys/wait.h>
279 #include <net/bpf.h>
280 #include <net/if.h>
281 #include <net/if_types.h>
282 #include <net/route.h>
283 #include <netinet/in.h>
284 #include <netinet/in_systm.h>
285 #include <netinet/ip.h>
286 #include <netinet/ip_mroute.h>
287 #include <netinet/if_ether.h>
288
289 // Needed since <sys/param.h> refers to it...
290 #define schedppq 1
291 '
292
293 includes_OpenBSD='
294 #include <sys/types.h>
295 #include <sys/param.h>
296 #include <sys/event.h>
297 #include <sys/mman.h>
298 #include <sys/mount.h>
299 #include <sys/socket.h>
300 #include <sys/sockio.h>
301 #include <sys/stat.h>
302 #include <sys/sysctl.h>
303 #include <sys/termios.h>
304 #include <sys/ttycom.h>
305 #include <sys/unistd.h>
306 #include <sys/wait.h>
307 #include <net/bpf.h>
308 #include <net/if.h>
309 #include <net/if_types.h>
310 #include <net/if_var.h>
311 #include <net/route.h>
312 #include <netinet/in.h>
313 #include <netinet/in_systm.h>
314 #include <netinet/ip.h>
315 #include <netinet/ip_mroute.h>
316 #include <netinet/if_ether.h>
317 #include <net/if_bridge.h>
318
319 // We keep some constants not supported in OpenBSD 5.5 and beyond for
320 // the promise of compatibility.
321 #define EMUL_ENABLED 0x1
322 #define EMUL_NATIVE 0x2
323 #define IPV6_FAITH 0x1d
324 #define IPV6_OPTIONS 0x1
325 #define IPV6_RTHDR_STRICT 0x1
326 #define IPV6_SOCKOPT_RESERVED1 0x3
327 #define SIOCGIFGENERIC 0xc020693a
328 #define SIOCSIFGENERIC 0x80206939
329 #define WALTSIG 0x4
330 '
331
332 includes_SunOS='
333 #include <limits.h>
334 #include <sys/types.h>
335 #include <sys/socket.h>
336 #include <sys/sockio.h>
337 #include <sys/stat.h>
338 #include <sys/mman.h>
339 #include <sys/wait.h>
340 #include <sys/ioctl.h>
341 #include <sys/mkdev.h>
342 #include <net/bpf.h>
343 #include <net/if.h>
344 #include <net/if_arp.h>
345 #include <net/if_types.h>
346 #include <net/route.h>
347 #include <netinet/in.h>
348 #include <termios.h>
349 #include <netinet/ip.h>
350 #include <netinet/ip_mroute.h>
351 '
352
353
354 includes='
355 #include <sys/types.h>
356 #include <sys/file.h>
357 #include <fcntl.h>
358 #include <dirent.h>
359 #include <sys/socket.h>
360 #include <netinet/in.h>
361 #include <netinet/ip.h>
362 #include <netinet/ip6.h>
363 #include <netinet/tcp.h>
364 #include <errno.h>
365 #include <sys/signal.h>
366 #include <signal.h>
367 #include <sys/resource.h>
368 #include <time.h>
369 '
370 ccflags="$@"
371
372 # Write go tool cgo -godefs input.
373 (
374 echo package unix
375 echo
376 echo '/*'
377 indirect="includes_$(uname)"
378 echo "${!indirect} $includes"
379 echo '*/'
380 echo 'import "C"'
381 echo 'import "syscall"'
382 echo
383 echo 'const ('
384
385 # The gcc command line prints all the #defines
386 # it encounters while processing the input
387 echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags |
388 awk '
389 $1 != "#define" || $2 ~ /\(/ || $3 == "" {next}
390
391 $2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers
392 $2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next}
393 $2 ~ /^(SCM_SRCRT)$/ {next}
394 $2 ~ /^(MAP_FAILED)$/ {next}
395 $2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc.
396
397 $2 ~ /^EXTATTR_NAMESPACE_NAMES/ ||
398 $2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next}
399
400 $2 !~ /^ECCAPBITS/ &&
401 $2 !~ /^ETH_/ &&
402 $2 !~ /^EPROC_/ &&
403 $2 !~ /^EQUIV_/ &&
404 $2 !~ /^EXPR_/ &&
405 $2 ~ /^E[A-Z0-9_]+$/ ||
406 $2 ~ /^B[0-9_]+$/ ||
407 $2 ~ /^(OLD|NEW)DEV$/ ||
408 $2 == "BOTHER" ||
409 $2 ~ /^CI?BAUD(EX)?$/ ||
410 $2 == "IBSHIFT" ||
411 $2 ~ /^V[A-Z0-9]+$/ ||
412 $2 ~ /^CS[A-Z0-9]/ ||
413 $2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
414 $2 ~ /^IGN/ ||
415 $2 ~ /^IX(ON|ANY|OFF)$/ ||
416 $2 ~ /^IN(LCR|PCK)$/ ||
417 $2 !~ "X86_CR3_PCID_NOFLUSH" &&
418 $2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
419 $2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ ||
420 $2 == "BRKINT" ||
421 $2 == "HUPCL" ||
422 $2 == "PENDIN" ||
423 $2 == "TOSTOP" ||
424 $2 == "XCASE" ||
425 $2 == "ALTWERASE" ||
426 $2 == "NOKERNINFO" ||
427 $2 ~ /^PAR/ ||
428 $2 ~ /^SIG[^_]/ ||
429 $2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ ||
430 $2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ ||
431 $2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ ||
432 $2 ~ /^O?XTABS$/ ||
433 $2 ~ /^TC[IO](ON|OFF)$/ ||
434 $2 ~ /^IN_/ ||
435 $2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
436 $2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
437 $2 ~ /^TP_STATUS_/ ||
438 $2 ~ /^FALLOC_/ ||
439 $2 == "ICMPV6_FILTER" ||
440 $2 == "SOMAXCONN" ||
441 $2 == "NAME_MAX" ||
442 $2 == "IFNAMSIZ" ||
443 $2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ ||
444 $2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ ||
445 $2 ~ /^HW_MACHINE$/ ||
446 $2 ~ /^SYSCTL_VERS/ ||
447 $2 !~ "MNT_BITS" &&
448 $2 ~ /^(MS|MNT|UMOUNT)_/ ||
449 $2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
450 $2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT)_/ ||
451 $2 ~ /^KEXEC_/ ||
452 $2 ~ /^LINUX_REBOOT_CMD_/ ||
453 $2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
454 $2 ~ /^MODULE_INIT_/ ||
455 $2 !~ "NLA_TYPE_MASK" &&
456 $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ ||
457 $2 ~ /^SIOC/ ||
458 $2 ~ /^TIOC/ ||
459 $2 ~ /^TCGET/ ||
460 $2 ~ /^TCSET/ ||
461 $2 ~ /^TC(FLSH|SBRKP?|XONC)$/ ||
462 $2 !~ "RTF_BITS" &&
463 $2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ ||
464 $2 ~ /^BIOC/ ||
465 $2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ ||
466 $2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ ||
467 $2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
468 $2 ~ /^CLONE_[A-Z_]+/ ||
469 $2 !~ /^(BPF_TIMEVAL)$/ &&
470 $2 ~ /^(BPF|DLT)_/ ||
471 $2 ~ /^(CLOCK|TIMER)_/ ||
472 $2 ~ /^CAN_/ ||
473 $2 ~ /^CAP_/ ||
474 $2 ~ /^ALG_/ ||
475 $2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ ||
476 $2 ~ /^GRND_/ ||
477 $2 ~ /^RND/ ||
478 $2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ ||
479 $2 ~ /^KEYCTL_/ ||
480 $2 ~ /^PERF_EVENT_IOC_/ ||
481 $2 ~ /^SECCOMP_MODE_/ ||
482 $2 ~ /^SPLICE_/ ||
483 $2 ~ /^SYNC_FILE_RANGE_/ ||
484 $2 !~ /^AUDIT_RECORD_MAGIC/ &&
485 $2 !~ /IOC_MAGIC/ &&
486 $2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ ||
487 $2 ~ /^(VM|VMADDR)_/ ||
488 $2 ~ /^IOCTL_VM_SOCKETS_/ ||
489 $2 ~ /^(TASKSTATS|TS)_/ ||
490 $2 ~ /^CGROUPSTATS_/ ||
491 $2 ~ /^GENL_/ ||
492 $2 ~ /^STATX_/ ||
493 $2 ~ /^RENAME/ ||
494 $2 ~ /^UBI_IOC[A-Z]/ ||
495 $2 ~ /^UTIME_/ ||
496 $2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ ||
497 $2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ ||
498 $2 ~ /^FSOPT_/ ||
499 $2 ~ /^WDIOC_/ ||
500 $2 ~ /^NFN/ ||
501 $2 ~ /^XDP_/ ||
502 $2 ~ /^(HDIO|WIN|SMART)_/ ||
503 $2 ~ /^CRYPTO_/ ||
504 $2 !~ "WMESGLEN" &&
505 $2 ~ /^W[A-Z0-9]+$/ ||
506 $2 ~/^PPPIOC/ ||
507 $2 ~ /^FAN_|FANOTIFY_/ ||
508 $2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)}
509 $2 ~ /^__WCOREFLAG$/ {next}
510 $2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)}
511
512 {next}
513 ' | sort
514
515 echo ')'
516 ) >_const.go
517
518 # Pull out the error names for later.
519 errors=$(
520 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
521 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' |
522 sort
523 )
524
525 # Pull out the signal names for later.
526 signals=$(
527 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
528 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' |
529 egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
530 sort
531 )
532
533 # Again, writing regexps to a file.
534 echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags |
535 awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' |
536 sort >_error.grep
537 echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags |
538 awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' |
539 egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' |
540 sort >_signal.grep
541
542 echo '// mkerrors.sh' "$@"
543 echo '// Code generated by the command above; see README.md. DO NOT EDIT.'
544 echo
545 echo "// +build ${GOARCH},${GOOS}"
546 echo
547 go tool cgo -godefs -- "$@" _const.go >_error.out
548 cat _error.out | grep -vf _error.grep | grep -vf _signal.grep
549 echo
550 echo '// Errors'
551 echo 'const ('
552 cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/'
553 echo ')'
554
555 echo
556 echo '// Signals'
557 echo 'const ('
558 cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/'
559 echo ')'
560
561 # Run C program to print error and syscall strings.
562 (
563 echo -E "
564 #include <stdio.h>
565 #include <stdlib.h>
566 #include <errno.h>
567 #include <ctype.h>
568 #include <string.h>
569 #include <signal.h>
570
571 #define nelem(x) (sizeof(x)/sizeof((x)[0]))
572
573 enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below
574
575 struct tuple {
576 int num;
577 const char *name;
578 };
579
580 struct tuple errors[] = {
581 "
582 for i in $errors
583 do
584 echo -E ' {'$i', "'$i'" },'
585 done
586
587 echo -E "
588 };
589
590 struct tuple signals[] = {
591 "
592 for i in $signals
593 do
594 echo -E ' {'$i', "'$i'" },'
595 done
596
597 # Use -E because on some systems bash builtin interprets \n itself.
598 echo -E '
599 };
600
601 static int
602 tuplecmp(const void *a, const void *b)
603 {
604 return ((struct tuple *)a)->num - ((struct tuple *)b)->num;
605 }
606
607 int
608 main(void)
609 {
610 int i, e;
611 char buf[1024], *p;
612
613 printf("\n\n// Error table\n");
614 printf("var errorList = [...]struct {\n");
615 printf("\tnum syscall.Errno\n");
616 printf("\tname string\n");
617 printf("\tdesc string\n");
618 printf("} {\n");
619 qsort(errors, nelem(errors), sizeof errors[0], tuplecmp);
620 for(i=0; i<nelem(errors); i++) {
621 e = errors[i].num;
622 if(i > 0 && errors[i-1].num == e)
623 continue;
624 strcpy(buf, strerror(e));
625 // lowercase first letter: Bad -> bad, but STREAM -> STREAM.
626 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
627 buf[0] += a - A;
628 printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf);
629 }
630 printf("}\n\n");
631
632 printf("\n\n// Signal table\n");
633 printf("var signalList = [...]struct {\n");
634 printf("\tnum syscall.Signal\n");
635 printf("\tname string\n");
636 printf("\tdesc string\n");
637 printf("} {\n");
638 qsort(signals, nelem(signals), sizeof signals[0], tuplecmp);
639 for(i=0; i<nelem(signals); i++) {
640 e = signals[i].num;
641 if(i > 0 && signals[i-1].num == e)
642 continue;
643 strcpy(buf, strsignal(e));
644 // lowercase first letter: Bad -> bad, but STREAM -> STREAM.
645 if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z)
646 buf[0] += a - A;
647 // cut trailing : number.
648 p = strrchr(buf, ":"[0]);
649 if(p)
650 *p = '\0';
651 printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf);
652 }
653 printf("}\n\n");
654
655 return 0;
656 }
657
658 '
659 ) >_errors.c
660
661 $CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out
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