| #!/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 |
| |
| case "$GOARCH" in |
| arm) |
| GCC=arm-gcc |
| ;; |
| *) |
| GCC=gcc |
| ;; |
| esac |
| |
| uname=$(uname) |
| |
| includes_Linux=' |
| #define _LARGEFILE_SOURCE |
| #define _LARGEFILE64_SOURCE |
| #define _FILE_OFFSET_BITS 64 |
| #define _GNU_SOURCE |
| |
| #include <sys/types.h> |
| #include <sys/epoll.h> |
| #include <linux/ptrace.h> |
| #include <linux/wait.h> |
| ' |
| |
| includes_Darwin=' |
| #define __DARWIN_UNIX03 0 |
| #define KERNEL |
| #define _DARWIN_USE_64_BIT_INODE |
| #include <sys/wait.h> |
| #include <sys/event.h> |
| ' |
| |
| includes_FreeBSD=' |
| #include <sys/wait.h> |
| #include <sys/event.h> |
| ' |
| |
| includes=' |
| #include <sys/types.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> |
| ' |
| |
| ccflags="" |
| next=false |
| for i |
| do |
| if $next; then |
| ccflags="$ccflags $i" |
| next=false |
| elif [ "$i" = "-f" ]; then |
| next=true |
| fi |
| done |
| |
| # These are go errors that will be mapped directly to windows errors |
| goerrors=' |
| ENOENT:ERROR_FILE_NOT_FOUND |
| ENOTDIR:ERROR_DIRECTORY |
| ' |
| |
| # Pull out just the error names for later. |
| i=$( |
| for j in "$goerrors" |
| do |
| echo "$j" |
| done | |
| awk -F: ' |
| { if (NR > 1) printf("|") } |
| { printf("%s", $1) } |
| ' |
| ) |
| errors=$( |
| echo '#include <errno.h>' | $GCC -x c - -E -dM $ccflags | |
| awk ' |
| $1 != "#define" || $2 ~ /\(/ {next} |
| $2 ~ /^('$i')$/ {next} |
| $2 ~ /^E[A-Z0-9_]+$/ { print $2 } |
| {next} |
| ' | sort |
| ) |
| |
| echo '// mkerrors_windows.sh' "$@" |
| echo '// MACHINE GENERATED BY THE COMMAND ABOVE; DO NOT EDIT' |
| echo |
| echo 'package syscall' |
| |
| # Run C program to print error strings. |
| ( |
| /bin/echo " |
| #include <stdio.h> |
| #include <errno.h> |
| #include <ctype.h> |
| #include <string.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 { |
| char *goname; |
| char *winname; |
| } goerrors[] = { |
| " |
| for i in $goerrors |
| do |
| j=`echo $i | cut -d: -f1` |
| k=`echo $i | cut -d: -f2` |
| echo ' {"'$j'", "'$k'"},' |
| done |
| |
| # Use /bin/echo to avoid builtin echo, |
| # which interprets \n itself |
| /bin/echo ' |
| }; |
| |
| struct { |
| char *name; |
| int value; |
| } errors[] = { |
| ' |
| for i in $errors |
| do |
| echo ' {"'$i'",' $i'},' |
| done |
| |
| # Use /bin/echo to avoid builtin echo, |
| # which interprets \n itself |
| /bin/echo ' |
| }; |
| |
| int |
| main(void) |
| { |
| int i, j, e, iota = 1; |
| char buf[1024]; |
| |
| printf("\n// Go names for Windows errors.\n"); |
| printf("const (\n"); |
| for(i=0; i<nelem(goerrors); i++) { |
| printf("\t%s = %s\n", goerrors[i].goname, goerrors[i].winname); |
| |
| } |
| printf(")\n"); |
| |
| printf("\n// Windows reserves errors >= 1<<29 for application use.\n"); |
| printf("const APPLICATION_ERROR = 1 << 29\n"); |
| |
| printf("\n// Invented values to support what package os and others expects.\n"); |
| printf("const (\n"); |
| for(i=0; i<nelem(errors); i++) { |
| e = errors[i].value; |
| 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%s", errors[i].name); |
| if(iota) { |
| printf(" = APPLICATION_ERROR + iota"); |
| iota = !iota; |
| } |
| printf("\n"); |
| |
| } |
| printf("\tEWINDOWS\n"); |
| printf(")\n"); |
| |
| printf("\n// Error strings for invented errors\n"); |
| printf("var errors = [...]string {\n"); |
| for(i=0; i<nelem(errors); i++) { |
| e = errors[i].value; |
| for(j=0; j<i; j++) |
| if(errors[j].value == e) // duplicate value |
| goto next; |
| 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%s - APPLICATION_ERROR: \"%s\",\n", errors[i].name, buf); |
| next:; |
| } |
| printf("\tEWINDOWS - APPLICATION_ERROR: \"not supported by windows\",\n"); |
| printf("}\n\n"); |
| return 0; |
| } |
| |
| ' |
| ) >_errors.c |
| |
| $GCC $ccflags -static -o _errors _errors.c && $GORUN ./_errors && rm -f _errors.c _errors |