| #!/usr/bin/env bash |
| # Copyright 2009 The Go Authors. All rights reserved. |
| # Use of this source code is governed by a BSD-style |
| # license that can be found in the LICENSE file. |
| |
| # Generate Go code listing errors and other #defined constant |
| # values (ENAMETOOLONG etc.), by asking the preprocessor |
| # about the definitions. |
| |
| unset LANG |
| export LC_ALL=C |
| export LC_CTYPE=C |
| |
| if test -z "$GOARCH" -o -z "$GOOS"; then |
| echo 1>&2 "GOARCH or GOOS not defined in environment" |
| exit 1 |
| fi |
| |
| # Check that we are using the new build system if we should |
| if [[ "$GOOS" = "linux" ]] && [[ "$GOLANG_SYS_BUILD" != "docker" ]]; then |
| echo 1>&2 "In the Docker based build system, mkerrors should not be called directly." |
| echo 1>&2 "See README.md" |
| exit 1 |
| fi |
| |
| if [[ "$GOOS" = "aix" ]]; then |
| CC=${CC:-gcc} |
| else |
| CC=${CC:-cc} |
| fi |
| |
| if [[ "$GOOS" = "solaris" ]]; then |
| # Assumes GNU versions of utilities in PATH. |
| export PATH=/usr/gnu/bin:$PATH |
| fi |
| |
| uname=$(uname) |
| |
| includes_AIX=' |
| #include <net/if.h> |
| #include <net/netopt.h> |
| #include <netinet/ip_mroute.h> |
| #include <sys/protosw.h> |
| #include <sys/stropts.h> |
| #include <sys/mman.h> |
| #include <sys/poll.h> |
| #include <sys/termio.h> |
| #include <termios.h> |
| #include <fcntl.h> |
| |
| #define AF_LOCAL AF_UNIX |
| ' |
| |
| includes_Darwin=' |
| #define _DARWIN_C_SOURCE |
| #define KERNEL |
| #define _DARWIN_USE_64_BIT_INODE |
| #include <stdint.h> |
| #include <sys/attr.h> |
| #include <sys/types.h> |
| #include <sys/event.h> |
| #include <sys/ptrace.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/sysctl.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/utsname.h> |
| #include <sys/wait.h> |
| #include <sys/xattr.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_types.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <netinet/ip.h> |
| #include <termios.h> |
| ' |
| |
| includes_DragonFly=' |
| #include <sys/types.h> |
| #include <sys/event.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/stat.h> |
| #include <sys/sysctl.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/wait.h> |
| #include <sys/ioctl.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_types.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <termios.h> |
| #include <netinet/ip.h> |
| #include <net/ip_mroute/ip_mroute.h> |
| ' |
| |
| includes_FreeBSD=' |
| #include <sys/capsicum.h> |
| #include <sys/param.h> |
| #include <sys/types.h> |
| #include <sys/event.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/stat.h> |
| #include <sys/sysctl.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/wait.h> |
| #include <sys/ioctl.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_types.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <termios.h> |
| #include <netinet/ip.h> |
| #include <netinet/ip_mroute.h> |
| #include <sys/extattr.h> |
| |
| #if __FreeBSD__ >= 10 |
| #define IFT_CARP 0xf8 // IFT_CARP is deprecated in FreeBSD 10 |
| #undef SIOCAIFADDR |
| #define SIOCAIFADDR _IOW(105, 26, struct oifaliasreq) // ifaliasreq contains if_data |
| #undef SIOCSIFPHYADDR |
| #define SIOCSIFPHYADDR _IOW(105, 70, struct oifaliasreq) // ifaliasreq contains if_data |
| #endif |
| ' |
| |
| includes_Linux=' |
| #define _LARGEFILE_SOURCE |
| #define _LARGEFILE64_SOURCE |
| #ifndef __LP64__ |
| #define _FILE_OFFSET_BITS 64 |
| #endif |
| #define _GNU_SOURCE |
| |
| // <sys/ioctl.h> is broken on powerpc64, as it fails to include definitions of |
| // these structures. We just include them copied from <bits/termios.h>. |
| #if defined(__powerpc__) |
| struct sgttyb { |
| char sg_ispeed; |
| char sg_ospeed; |
| char sg_erase; |
| char sg_kill; |
| short sg_flags; |
| }; |
| |
| struct tchars { |
| char t_intrc; |
| char t_quitc; |
| char t_startc; |
| char t_stopc; |
| char t_eofc; |
| char t_brkc; |
| }; |
| |
| struct ltchars { |
| char t_suspc; |
| char t_dsuspc; |
| char t_rprntc; |
| char t_flushc; |
| char t_werasc; |
| char t_lnextc; |
| }; |
| #endif |
| |
| #include <bits/sockaddr.h> |
| #include <sys/epoll.h> |
| #include <sys/eventfd.h> |
| #include <sys/inotify.h> |
| #include <sys/ioctl.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/prctl.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| #include <sys/time.h> |
| #include <sys/signalfd.h> |
| #include <sys/socket.h> |
| #include <sys/xattr.h> |
| #include <linux/bpf.h> |
| #include <linux/errqueue.h> |
| #include <linux/if.h> |
| #include <linux/if_alg.h> |
| #include <linux/if_arp.h> |
| #include <linux/if_ether.h> |
| #include <linux/if_ppp.h> |
| #include <linux/if_tun.h> |
| #include <linux/if_packet.h> |
| #include <linux/if_addr.h> |
| #include <linux/falloc.h> |
| #include <linux/fanotify.h> |
| #include <linux/filter.h> |
| #include <linux/fs.h> |
| #include <linux/kexec.h> |
| #include <linux/keyctl.h> |
| #include <linux/magic.h> |
| #include <linux/memfd.h> |
| #include <linux/module.h> |
| #include <linux/netfilter/nfnetlink.h> |
| #include <linux/netlink.h> |
| #include <linux/net_namespace.h> |
| #include <linux/perf_event.h> |
| #include <linux/random.h> |
| #include <linux/reboot.h> |
| #include <linux/rtnetlink.h> |
| #include <linux/ptrace.h> |
| #include <linux/sched.h> |
| #include <linux/seccomp.h> |
| #include <linux/sockios.h> |
| #include <linux/wait.h> |
| #include <linux/icmpv6.h> |
| #include <linux/serial.h> |
| #include <linux/can.h> |
| #include <linux/vm_sockets.h> |
| #include <linux/taskstats.h> |
| #include <linux/genetlink.h> |
| #include <linux/watchdog.h> |
| #include <linux/hdreg.h> |
| #include <linux/rtc.h> |
| #include <linux/if_xdp.h> |
| #include <linux/cryptouser.h> |
| #include <mtd/ubi-user.h> |
| #include <net/route.h> |
| |
| #if defined(__sparc__) |
| // On sparc{,64}, the kernel defines struct termios2 itself which clashes with the |
| // definition in glibc. As only the error constants are needed here, include the |
| // generic termibits.h (which is included by termbits.h on sparc). |
| #include <asm-generic/termbits.h> |
| #else |
| #include <asm/termbits.h> |
| #endif |
| |
| #ifndef MSG_FASTOPEN |
| #define MSG_FASTOPEN 0x20000000 |
| #endif |
| |
| #ifndef PTRACE_GETREGS |
| #define PTRACE_GETREGS 0xc |
| #endif |
| |
| #ifndef PTRACE_SETREGS |
| #define PTRACE_SETREGS 0xd |
| #endif |
| |
| #ifndef SOL_NETLINK |
| #define SOL_NETLINK 270 |
| #endif |
| |
| #ifdef SOL_BLUETOOTH |
| // SPARC includes this in /usr/include/sparc64-linux-gnu/bits/socket.h |
| // but it is already in bluetooth_linux.go |
| #undef SOL_BLUETOOTH |
| #endif |
| |
| // Certain constants are missing from the fs/crypto UAPI |
| #define FS_KEY_DESC_PREFIX "fscrypt:" |
| #define FS_KEY_DESC_PREFIX_SIZE 8 |
| #define FS_MAX_KEY_SIZE 64 |
| ' |
| |
| includes_NetBSD=' |
| #include <sys/types.h> |
| #include <sys/param.h> |
| #include <sys/event.h> |
| #include <sys/extattr.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/sysctl.h> |
| #include <sys/termios.h> |
| #include <sys/ttycom.h> |
| #include <sys/wait.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_types.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <netinet/in_systm.h> |
| #include <netinet/ip.h> |
| #include <netinet/ip_mroute.h> |
| #include <netinet/if_ether.h> |
| |
| // Needed since <sys/param.h> refers to it... |
| #define schedppq 1 |
| ' |
| |
| includes_OpenBSD=' |
| #include <sys/types.h> |
| #include <sys/param.h> |
| #include <sys/event.h> |
| #include <sys/mman.h> |
| #include <sys/mount.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/stat.h> |
| #include <sys/sysctl.h> |
| #include <sys/termios.h> |
| #include <sys/ttycom.h> |
| #include <sys/unistd.h> |
| #include <sys/wait.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_types.h> |
| #include <net/if_var.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <netinet/in_systm.h> |
| #include <netinet/ip.h> |
| #include <netinet/ip_mroute.h> |
| #include <netinet/if_ether.h> |
| #include <net/if_bridge.h> |
| |
| // We keep some constants not supported in OpenBSD 5.5 and beyond for |
| // the promise of compatibility. |
| #define EMUL_ENABLED 0x1 |
| #define EMUL_NATIVE 0x2 |
| #define IPV6_FAITH 0x1d |
| #define IPV6_OPTIONS 0x1 |
| #define IPV6_RTHDR_STRICT 0x1 |
| #define IPV6_SOCKOPT_RESERVED1 0x3 |
| #define SIOCGIFGENERIC 0xc020693a |
| #define SIOCSIFGENERIC 0x80206939 |
| #define WALTSIG 0x4 |
| ' |
| |
| includes_SunOS=' |
| #include <limits.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <sys/sockio.h> |
| #include <sys/stat.h> |
| #include <sys/mman.h> |
| #include <sys/wait.h> |
| #include <sys/ioctl.h> |
| #include <sys/mkdev.h> |
| #include <net/bpf.h> |
| #include <net/if.h> |
| #include <net/if_arp.h> |
| #include <net/if_types.h> |
| #include <net/route.h> |
| #include <netinet/in.h> |
| #include <termios.h> |
| #include <netinet/ip.h> |
| #include <netinet/ip_mroute.h> |
| ' |
| |
| |
| includes=' |
| #include <sys/types.h> |
| #include <sys/file.h> |
| #include <fcntl.h> |
| #include <dirent.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <netinet/ip.h> |
| #include <netinet/ip6.h> |
| #include <netinet/tcp.h> |
| #include <errno.h> |
| #include <sys/signal.h> |
| #include <signal.h> |
| #include <sys/resource.h> |
| #include <time.h> |
| ' |
| ccflags="$@" |
| |
| # Write go tool cgo -godefs input. |
| ( |
| echo package unix |
| echo |
| echo '/*' |
| indirect="includes_$(uname)" |
| echo "${!indirect} $includes" |
| echo '*/' |
| echo 'import "C"' |
| echo 'import "syscall"' |
| echo |
| echo 'const (' |
| |
| # The gcc command line prints all the #defines |
| # it encounters while processing the input |
| echo "${!indirect} $includes" | $CC -x c - -E -dM $ccflags | |
| awk ' |
| $1 != "#define" || $2 ~ /\(/ || $3 == "" {next} |
| |
| $2 ~ /^E([ABCD]X|[BIS]P|[SD]I|S|FL)$/ {next} # 386 registers |
| $2 ~ /^(SIGEV_|SIGSTKSZ|SIGRT(MIN|MAX))/ {next} |
| $2 ~ /^(SCM_SRCRT)$/ {next} |
| $2 ~ /^(MAP_FAILED)$/ {next} |
| $2 ~ /^ELF_.*$/ {next}# <asm/elf.h> contains ELF_ARCH, etc. |
| |
| $2 ~ /^EXTATTR_NAMESPACE_NAMES/ || |
| $2 ~ /^EXTATTR_NAMESPACE_[A-Z]+_STRING/ {next} |
| |
| $2 !~ /^ECCAPBITS/ && |
| $2 !~ /^ETH_/ && |
| $2 !~ /^EPROC_/ && |
| $2 !~ /^EQUIV_/ && |
| $2 !~ /^EXPR_/ && |
| $2 ~ /^E[A-Z0-9_]+$/ || |
| $2 ~ /^B[0-9_]+$/ || |
| $2 ~ /^(OLD|NEW)DEV$/ || |
| $2 == "BOTHER" || |
| $2 ~ /^CI?BAUD(EX)?$/ || |
| $2 == "IBSHIFT" || |
| $2 ~ /^V[A-Z0-9]+$/ || |
| $2 ~ /^CS[A-Z0-9]/ || |
| $2 ~ /^I(SIG|CANON|CRNL|UCLC|EXTEN|MAXBEL|STRIP|UTF8)$/ || |
| $2 ~ /^IGN/ || |
| $2 ~ /^IX(ON|ANY|OFF)$/ || |
| $2 ~ /^IN(LCR|PCK)$/ || |
| $2 !~ "X86_CR3_PCID_NOFLUSH" && |
| $2 ~ /(^FLU?SH)|(FLU?SH$)/ || |
| $2 ~ /^C(LOCAL|READ|MSPAR|RTSCTS)$/ || |
| $2 == "BRKINT" || |
| $2 == "HUPCL" || |
| $2 == "PENDIN" || |
| $2 == "TOSTOP" || |
| $2 == "XCASE" || |
| $2 == "ALTWERASE" || |
| $2 == "NOKERNINFO" || |
| $2 ~ /^PAR/ || |
| $2 ~ /^SIG[^_]/ || |
| $2 ~ /^O[CNPFPL][A-Z]+[^_][A-Z]+$/ || |
| $2 ~ /^(NL|CR|TAB|BS|VT|FF)DLY$/ || |
| $2 ~ /^(NL|CR|TAB|BS|VT|FF)[0-9]$/ || |
| $2 ~ /^O?XTABS$/ || |
| $2 ~ /^TC[IO](ON|OFF)$/ || |
| $2 ~ /^IN_/ || |
| $2 ~ /^LOCK_(SH|EX|NB|UN)$/ || |
| $2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|MCAST|EVFILT|NOTE|EV|SHUT|PROT|MAP|MFD|T?PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ || |
| $2 ~ /^TP_STATUS_/ || |
| $2 ~ /^FALLOC_/ || |
| $2 == "ICMPV6_FILTER" || |
| $2 == "SOMAXCONN" || |
| $2 == "NAME_MAX" || |
| $2 == "IFNAMSIZ" || |
| $2 ~ /^CTL_(HW|KERN|MAXNAME|NET|QUERY)$/ || |
| $2 ~ /^KERN_(HOSTNAME|OS(RELEASE|TYPE)|VERSION)$/ || |
| $2 ~ /^HW_MACHINE$/ || |
| $2 ~ /^SYSCTL_VERS/ || |
| $2 !~ "MNT_BITS" && |
| $2 ~ /^(MS|MNT|UMOUNT)_/ || |
| $2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ || |
| $2 ~ /^(O|F|[ES]?FD|NAME|S|PTRACE|PT)_/ || |
| $2 ~ /^KEXEC_/ || |
| $2 ~ /^LINUX_REBOOT_CMD_/ || |
| $2 ~ /^LINUX_REBOOT_MAGIC[12]$/ || |
| $2 ~ /^MODULE_INIT_/ || |
| $2 !~ "NLA_TYPE_MASK" && |
| $2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTC|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P|NETNSA)_/ || |
| $2 ~ /^SIOC/ || |
| $2 ~ /^TIOC/ || |
| $2 ~ /^TCGET/ || |
| $2 ~ /^TCSET/ || |
| $2 ~ /^TC(FLSH|SBRKP?|XONC)$/ || |
| $2 !~ "RTF_BITS" && |
| $2 ~ /^(IFF|IFT|NET_RT|RTM|RTF|RTV|RTA|RTAX)_/ || |
| $2 ~ /^BIOC/ || |
| $2 ~ /^RUSAGE_(SELF|CHILDREN|THREAD)/ || |
| $2 ~ /^RLIMIT_(AS|CORE|CPU|DATA|FSIZE|LOCKS|MEMLOCK|MSGQUEUE|NICE|NOFILE|NPROC|RSS|RTPRIO|RTTIME|SIGPENDING|STACK)|RLIM_INFINITY/ || |
| $2 ~ /^PRIO_(PROCESS|PGRP|USER)/ || |
| $2 ~ /^CLONE_[A-Z_]+/ || |
| $2 !~ /^(BPF_TIMEVAL|BPF_FIB_LOOKUP_[A-Z]+)$/ && |
| $2 ~ /^(BPF|DLT)_/ || |
| $2 ~ /^(CLOCK|TIMER)_/ || |
| $2 ~ /^CAN_/ || |
| $2 ~ /^CAP_/ || |
| $2 ~ /^ALG_/ || |
| $2 ~ /^FS_(POLICY_FLAGS|KEY_DESC|ENCRYPTION_MODE|[A-Z0-9_]+_KEY_SIZE|IOC_(GET|SET)_ENCRYPTION)/ || |
| $2 ~ /^GRND_/ || |
| $2 ~ /^RND/ || |
| $2 ~ /^KEY_(SPEC|REQKEY_DEFL)_/ || |
| $2 ~ /^KEYCTL_/ || |
| $2 ~ /^PERF_EVENT_IOC_/ || |
| $2 ~ /^SECCOMP_MODE_/ || |
| $2 ~ /^SPLICE_/ || |
| $2 ~ /^SYNC_FILE_RANGE_/ || |
| $2 !~ /^AUDIT_RECORD_MAGIC/ && |
| $2 !~ /IOC_MAGIC/ && |
| $2 ~ /^[A-Z][A-Z0-9_]+_MAGIC2?$/ || |
| $2 ~ /^(VM|VMADDR)_/ || |
| $2 ~ /^IOCTL_VM_SOCKETS_/ || |
| $2 ~ /^(TASKSTATS|TS)_/ || |
| $2 ~ /^CGROUPSTATS_/ || |
| $2 ~ /^GENL_/ || |
| $2 ~ /^STATX_/ || |
| $2 ~ /^RENAME/ || |
| $2 ~ /^UBI_IOC[A-Z]/ || |
| $2 ~ /^UTIME_/ || |
| $2 ~ /^XATTR_(CREATE|REPLACE|NO(DEFAULT|FOLLOW|SECURITY)|SHOWCOMPRESSION)/ || |
| $2 ~ /^ATTR_(BIT_MAP_COUNT|(CMN|VOL|FILE)_)/ || |
| $2 ~ /^FSOPT_/ || |
| $2 ~ /^WDIOC_/ || |
| $2 ~ /^NFN/ || |
| $2 ~ /^XDP_/ || |
| $2 ~ /^(HDIO|WIN|SMART)_/ || |
| $2 ~ /^CRYPTO_/ || |
| $2 !~ "WMESGLEN" && |
| $2 ~ /^W[A-Z0-9]+$/ || |
| $2 ~/^PPPIOC/ || |
| $2 ~ /^FAN_|FANOTIFY_/ || |
| $2 ~ /^BLK[A-Z]*(GET$|SET$|BUF$|PART$|SIZE)/ {printf("\t%s = C.%s\n", $2, $2)} |
| $2 ~ /^__WCOREFLAG$/ {next} |
| $2 ~ /^__W[A-Z0-9]+$/ {printf("\t%s = C.%s\n", substr($2,3), $2)} |
| |
| {next} |
| ' | sort |
| |
| echo ')' |
| ) >_const.go |
| |
| # Pull out the error names for later. |
| errors=$( |
| echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | |
| awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print $2 }' | |
| sort |
| ) |
| |
| # Pull out the signal names for later. |
| signals=$( |
| echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | |
| awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print $2 }' | |
| egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' | |
| sort |
| ) |
| |
| # Again, writing regexps to a file. |
| echo '#include <errno.h>' | $CC -x c - -E -dM $ccflags | |
| awk '$1=="#define" && $2 ~ /^E[A-Z0-9_]+$/ { print "^\t" $2 "[ \t]*=" }' | |
| sort >_error.grep |
| echo '#include <signal.h>' | $CC -x c - -E -dM $ccflags | |
| awk '$1=="#define" && $2 ~ /^SIG[A-Z0-9]+$/ { print "^\t" $2 "[ \t]*=" }' | |
| egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT|SIGMAX64)' | |
| sort >_signal.grep |
| |
| echo '// mkerrors.sh' "$@" |
| echo '// Code generated by the command above; see README.md. DO NOT EDIT.' |
| echo |
| echo "// +build ${GOARCH},${GOOS}" |
| echo |
| go tool cgo -godefs -- "$@" _const.go >_error.out |
| cat _error.out | grep -vf _error.grep | grep -vf _signal.grep |
| echo |
| echo '// Errors' |
| echo 'const (' |
| cat _error.out | grep -f _error.grep | sed 's/=\(.*\)/= syscall.Errno(\1)/' |
| echo ')' |
| |
| echo |
| echo '// Signals' |
| echo 'const (' |
| cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= syscall.Signal(\1)/' |
| echo ')' |
| |
| # Run C program to print error and syscall strings. |
| ( |
| echo -E " |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| #include <ctype.h> |
| #include <string.h> |
| #include <signal.h> |
| |
| #define nelem(x) (sizeof(x)/sizeof((x)[0])) |
| |
| enum { A = 'A', Z = 'Z', a = 'a', z = 'z' }; // avoid need for single quotes below |
| |
| struct tuple { |
| int num; |
| const char *name; |
| }; |
| |
| struct tuple errors[] = { |
| " |
| for i in $errors |
| do |
| echo -E ' {'$i', "'$i'" },' |
| done |
| |
| echo -E " |
| }; |
| |
| struct tuple signals[] = { |
| " |
| for i in $signals |
| do |
| echo -E ' {'$i', "'$i'" },' |
| done |
| |
| # Use -E because on some systems bash builtin interprets \n itself. |
| echo -E ' |
| }; |
| |
| static int |
| tuplecmp(const void *a, const void *b) |
| { |
| return ((struct tuple *)a)->num - ((struct tuple *)b)->num; |
| } |
| |
| int |
| main(void) |
| { |
| int i, e; |
| char buf[1024], *p; |
| |
| printf("\n\n// Error table\n"); |
| printf("var errorList = [...]struct {\n"); |
| printf("\tnum syscall.Errno\n"); |
| printf("\tname string\n"); |
| printf("\tdesc string\n"); |
| printf("} {\n"); |
| qsort(errors, nelem(errors), sizeof errors[0], tuplecmp); |
| for(i=0; i<nelem(errors); i++) { |
| e = errors[i].num; |
| if(i > 0 && errors[i-1].num == e) |
| continue; |
| strcpy(buf, strerror(e)); |
| // lowercase first letter: Bad -> bad, but STREAM -> STREAM. |
| if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) |
| buf[0] += a - A; |
| printf("\t{ %d, \"%s\", \"%s\" },\n", e, errors[i].name, buf); |
| } |
| printf("}\n\n"); |
| |
| printf("\n\n// Signal table\n"); |
| printf("var signalList = [...]struct {\n"); |
| printf("\tnum syscall.Signal\n"); |
| printf("\tname string\n"); |
| printf("\tdesc string\n"); |
| printf("} {\n"); |
| qsort(signals, nelem(signals), sizeof signals[0], tuplecmp); |
| for(i=0; i<nelem(signals); i++) { |
| e = signals[i].num; |
| if(i > 0 && signals[i-1].num == e) |
| continue; |
| strcpy(buf, strsignal(e)); |
| // lowercase first letter: Bad -> bad, but STREAM -> STREAM. |
| if(A <= buf[0] && buf[0] <= Z && a <= buf[1] && buf[1] <= z) |
| buf[0] += a - A; |
| // cut trailing : number. |
| p = strrchr(buf, ":"[0]); |
| if(p) |
| *p = '\0'; |
| printf("\t{ %d, \"%s\", \"%s\" },\n", e, signals[i].name, buf); |
| } |
| printf("}\n\n"); |
| |
| return 0; |
| } |
| |
| ' |
| ) >_errors.c |
| |
| $CC $ccflags -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors _const.go _error.grep _signal.grep _error.out |