mirror of
https://github.com/genuinetools/reg.git
synced 2024-08-21 22:30:22 -04:00
247 lines
5.9 KiB
Bash
Executable file
247 lines
5.9 KiB
Bash
Executable file
#!/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
|
|
|
|
CC=${CC:-gcc}
|
|
|
|
uname=$(uname)
|
|
|
|
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>
|
|
'
|
|
|
|
ccflags="$@"
|
|
|
|
# Write go tool cgo -godefs input.
|
|
(
|
|
echo package plan9
|
|
echo
|
|
echo '/*'
|
|
indirect="includes_$(uname)"
|
|
echo "${!indirect} $includes"
|
|
echo '*/'
|
|
echo 'import "C"'
|
|
echo
|
|
echo 'const ('
|
|
|
|
# The gcc command line prints all the #defines
|
|
# it encounters while processing the input
|
|
echo "${!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 !~ /^ETH_/ &&
|
|
$2 !~ /^EPROC_/ &&
|
|
$2 !~ /^EQUIV_/ &&
|
|
$2 !~ /^EXPR_/ &&
|
|
$2 ~ /^E[A-Z0-9_]+$/ ||
|
|
$2 ~ /^B[0-9_]+$/ ||
|
|
$2 ~ /^V[A-Z0-9]+$/ ||
|
|
$2 ~ /^CS[A-Z0-9]/ ||
|
|
$2 ~ /^I(SIG|CANON|CRNL|EXTEN|MAXBEL|STRIP|UTF8)$/ ||
|
|
$2 ~ /^IGN/ ||
|
|
$2 ~ /^IX(ON|ANY|OFF)$/ ||
|
|
$2 ~ /^IN(LCR|PCK)$/ ||
|
|
$2 ~ /(^FLU?SH)|(FLU?SH$)/ ||
|
|
$2 ~ /^C(LOCAL|READ)$/ ||
|
|
$2 == "BRKINT" ||
|
|
$2 == "HUPCL" ||
|
|
$2 == "PENDIN" ||
|
|
$2 == "TOSTOP" ||
|
|
$2 ~ /^PAR/ ||
|
|
$2 ~ /^SIG[^_]/ ||
|
|
$2 ~ /^O[CNPFP][A-Z]+[^_][A-Z]+$/ ||
|
|
$2 ~ /^IN_/ ||
|
|
$2 ~ /^LOCK_(SH|EX|NB|UN)$/ ||
|
|
$2 ~ /^(AF|SOCK|SO|SOL|IPPROTO|IP|IPV6|ICMP6|TCP|EVFILT|NOTE|EV|SHUT|PROT|MAP|PACKET|MSG|SCM|MCL|DT|MADV|PR)_/ ||
|
|
$2 == "ICMPV6_FILTER" ||
|
|
$2 == "SOMAXCONN" ||
|
|
$2 == "NAME_MAX" ||
|
|
$2 == "IFNAMSIZ" ||
|
|
$2 ~ /^CTL_(MAXNAME|NET|QUERY)$/ ||
|
|
$2 ~ /^SYSCTL_VERS/ ||
|
|
$2 ~ /^(MS|MNT)_/ ||
|
|
$2 ~ /^TUN(SET|GET|ATTACH|DETACH)/ ||
|
|
$2 ~ /^(O|F|FD|NAME|S|PTRACE|PT)_/ ||
|
|
$2 ~ /^LINUX_REBOOT_CMD_/ ||
|
|
$2 ~ /^LINUX_REBOOT_MAGIC[12]$/ ||
|
|
$2 !~ "NLA_TYPE_MASK" &&
|
|
$2 ~ /^(NETLINK|NLM|NLMSG|NLA|IFA|IFAN|RT|RTCF|RTN|RTPROT|RTNH|ARPHRD|ETH_P)_/ ||
|
|
$2 ~ /^SIOC/ ||
|
|
$2 ~ /^TIOC/ ||
|
|
$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|NOFILE|STACK)|RLIM_INFINITY/ ||
|
|
$2 ~ /^PRIO_(PROCESS|PGRP|USER)/ ||
|
|
$2 ~ /^CLONE_[A-Z_]+/ ||
|
|
$2 !~ /^(BPF_TIMEVAL)$/ &&
|
|
$2 ~ /^(BPF|DLT)_/ ||
|
|
$2 !~ "WMESGLEN" &&
|
|
$2 ~ /^W[A-Z0-9]+$/ {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)' |
|
|
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" $2 "[ \t]*=" }' |
|
|
egrep -v '(SIGSTKSIZE|SIGSTKSZ|SIGRT)' |
|
|
sort >_signal.grep
|
|
|
|
echo '// mkerrors.sh' "$@"
|
|
echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT'
|
|
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/=\(.*\)/= Errno(\1)/'
|
|
echo ')'
|
|
|
|
echo
|
|
echo '// Signals'
|
|
echo 'const ('
|
|
cat _error.out | grep -f _signal.grep | sed 's/=\(.*\)/= 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
|
|
|
|
int errors[] = {
|
|
"
|
|
for i in $errors
|
|
do
|
|
echo -E ' '$i,
|
|
done
|
|
|
|
echo -E "
|
|
};
|
|
|
|
int signals[] = {
|
|
"
|
|
for i in $signals
|
|
do
|
|
echo -E ' '$i,
|
|
done
|
|
|
|
# Use -E because on some systems bash builtin interprets \n itself.
|
|
echo -E '
|
|
};
|
|
|
|
static int
|
|
intcmp(const void *a, const void *b)
|
|
{
|
|
return *(int*)a - *(int*)b;
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i, j, e;
|
|
char buf[1024], *p;
|
|
|
|
printf("\n\n// Error table\n");
|
|
printf("var errors = [...]string {\n");
|
|
qsort(errors, nelem(errors), sizeof errors[0], intcmp);
|
|
for(i=0; i<nelem(errors); i++) {
|
|
e = errors[i];
|
|
if(i > 0 && errors[i-1] == 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\",\n", e, buf);
|
|
}
|
|
printf("}\n\n");
|
|
|
|
printf("\n\n// Signal table\n");
|
|
printf("var signals = [...]string {\n");
|
|
qsort(signals, nelem(signals), sizeof signals[0], intcmp);
|
|
for(i=0; i<nelem(signals); i++) {
|
|
e = signals[i];
|
|
if(i > 0 && signals[i-1] == 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\",\n", e, 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
|