1# 2# Copyright 2005 Sun Microsystems, Inc. All rights reserved. 3# Use is subject to license terms. 4# 5# CDDL HEADER START 6# 7# The contents of this file are subject to the terms of the 8# Common Development and Distribution License, Version 1.0 only 9# (the "License"). You may not use this file except in compliance 10# with the License. 11# 12# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 13# or http://www.opensolaris.org/os/licensing. 14# See the License for the specific language governing permissions 15# and limitations under the License. 16# 17# When distributing Covered Code, include this CDDL HEADER in each 18# file and include the License file at usr/src/OPENSOLARIS.LICENSE. 19# If applicable, add the following below this CDDL HEADER, with the 20# fields enclosed by brackets "[]" replaced with your own identifying 21# information: Portions Copyright [yyyy] [name of copyright owner] 22# 23# CDDL HEADER END 24# 25# ident "%Z%%M% %I% %E% SMI" 26# 27# Create two files from a list of input strings; 28# new_list.c contains an array of characters indexed into by perror and 29# strerror; 30# errlst.c contains an array of pointers to strings for compatibility 31# with existing user programs that reference it directly; 32# errlst.c references the strings in new_list.c indirectly using a library 33# private symbol, __sys_errs[], in order to get relative relocations. 34# 35# Since the 64 bit ABI doesn't define the old symbols, the second file 36# should be left out 64 bit libraries. 37# 38# WARNING! 39# Do NOT add entries to this list such that it grows the list 40# beyond the last entry: 41# 151 Stale NFS file handle 42# Growing this list may damage programs because this array is 43# copied into a reserved array at runtime. See bug 4097669. 44# 45# If you need to add an entry please use one of the empty 46# slots. 47# The arrays _sys_errs[], accessible via perror(3C) and strerror(3C) 48# interfaces, and sys_errlist[] are created from this list. 49# It is the direct referencing of sys_errlist[] that is the problem. 50# Your code should only use perror() or strerror(). 51 52 53BEGIN { 54 FS = "\t" 55 hi = 0 56 57 newfile = "new_list.c" 58 oldfile = "errlst.c" 59 60 print "#pragma ident\t\"%Z%%M%\t%I%\t%E% SMI\"\n" >oldfile 61 print "#pragma weak sys_errlist = _sys_errlist\n" >oldfile 62 print "#include \"synonyms.h\"\n" >oldfile 63 # We need to include the errors strings proper in the 64 # C source for gettext; the macro C allows us to embed 65 # them as comment. 66 print "#define\tC(x)\n" >oldfile 67 print "extern const char __sys_errs[];\n" >oldfile 68 print "const char *sys_errlist[] = {" >oldfile 69 70 print "#pragma ident\t\"%Z%%M%\t%I%\t%E% SMI\"\n" >newfile 71 print "#include \"synonyms.h\"" >newfile 72 print "#include <sys/isa_defs.h>\n" >newfile 73 print "#pragma weak __sys_errs = _sys_errs\n" >newfile 74 } 75 76/^[0-9]+/ { 77 if ($1 > hi) 78 hi = $1 79 astr[$1] = $2 80 } 81 82END { 83 print "const int _sys_index[] =\n{" >newfile 84 k = 0 85 mx = 151 # max number of entries for sys_errlist[] 86 if (hi > mx) 87 { 88 printf "awk: ERROR! sys_errlist[] > %d entries\n", mx 89 printf "Please read comments in" 90 printf " usr/src/lib/libc/port/gen/errlist\n" 91 exit 1 92 } 93 for (j = 0; j <= hi; ++j) 94 { 95 if (astr[j] == "") 96 astr[j] = sprintf("Error %d", j) 97 printf "\t%d,\n", k >newfile 98 printf "\t&__sys_errs[%d], C(\"%s\")\n", k, astr[j] \ 99 >oldfile 100 k += length(astr[j]) + 1 101 } 102 print "};\n" >newfile 103 104 print "/* This is one long string */" >newfile 105 printf "const char _sys_errs[%d] =\n", k >newfile 106 for (j = 0; j <= hi; ++j) 107 { 108 printf "\t\"%s\\0\"\n", astr[j] >newfile 109 } 110 print ";\n" >newfile 111 print "};\n" >oldfile 112 113 print "const int _sys_num_err = " hi + 1 ";\n" >newfile 114 print "#undef sys_nerr" >newfile 115 print "#ifndef _LP64" >newfile 116 print "#pragma weak _sys_nerr = _sys_num_err" >newfile 117 print "#pragma weak sys_nerr = _sys_num_err" >newfile 118 print "#endif /* _LP64 */" >newfile 119 } 120