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author | obrien <obrien@FreeBSD.org> | 2002-05-01 03:19:19 +0000 |
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committer | obrien <obrien@FreeBSD.org> | 2002-05-01 03:19:19 +0000 |
commit | 77bbdad49ce646f671ba2fce42f4c569805e5f5e (patch) | |
tree | 65ebc751ef2d7e7e21174d189ce628c5073cc145 /sys | |
parent | d2ad9809fdbc349ce1304d59926d0d88358fc64a (diff) | |
download | FreeBSD-src-77bbdad49ce646f671ba2fce42f4c569805e5f5e.zip FreeBSD-src-77bbdad49ce646f671ba2fce42f4c569805e5f5e.tar.gz |
Awk version of makeobjops.PL.
Note the invocation ordering is slightly different:
awk -f makeobjops.awk foo.m -ch
Submitted by: Oliver Fromme <olli@fromme.com>
Diffstat (limited to 'sys')
-rw-r--r-- | sys/tools/makeobjops.awk | 485 |
1 files changed, 485 insertions, 0 deletions
diff --git a/sys/tools/makeobjops.awk b/sys/tools/makeobjops.awk new file mode 100644 index 0000000..d78698c --- /dev/null +++ b/sys/tools/makeobjops.awk @@ -0,0 +1,485 @@ +#!/usr/bin/awk -f +# +# Copyright (c) 1992, 1993 +# The Regents of the University of California. All rights reserved. +# +# Redistribution and use in source and binary forms, with or without +# modification, are permitted provided that the following conditions +# are met: +# 1. Redistributions of source code must retain the above copyright +# notice, this list of conditions and the following disclaimer. +# 2. Redistributions in binary form must reproduce the above copyright +# notice, this list of conditions and the following disclaimer in the +# documentation and/or other materials provided with the distribution. +# 3. All advertising materials mentioning features or use of this software +# must display the following acknowledgement: +# This product includes software developed by the University of +# California, Berkeley and its contributors. +# 4. Neither the name of the University nor the names of its contributors +# may be used to endorse or promote products derived from this software +# without specific prior written permission. +# +# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND +# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE +# ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE +# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS +# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) +# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT +# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY +# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF +# SUCH DAMAGE. +# +# From @(#)vnode_if.sh 8.1 (Berkeley) 6/10/93 +# From @(#)makedevops.sh 1.1 1998/06/14 13:53:12 dfr Exp $ +# From @(#)makedevops.sh ?.? 1998/10/05 +# From src/sys/kern/makedevops.pl,v 1.12 1999/11/22 14:40:04 n_hibma Exp +# From src/sys/kern/makeobjops.pl,v 1.8 2001/11/16 02:02:42 joe Exp +# +# $FreeBSD$ + +# +# Script to produce kobj front-end sugar. +# + +function usage () +{ + print "usage: makeobjops.awk <srcfile.m> [-d] [-p] [-l <nr>] [-c|-h]"; + print "where -c produce only .c files"; + print " -h produce only .h files"; + print " -p use the path component in the source file for destination dir"; + print " -l set line width for output files [80]"; + print " -d switch on debugging"; + exit 1; +} + +function warn (msg) +{ + print "makeobjops.awk:", msg > "/dev/stderr"; +} + +function warnsrc (msg) +{ + warn(src ":" lineno ": " msg); +} + +function debug (msg) +{ + if (opt_d) + warn(msg); +} + +function die (msg) +{ + warn(msg); + exit 1; +} + +# These are just for convenience ... +function printc(s) {if (opt_c) print s > ctmpfilename;} +function printh(s) {if (opt_h) print s > htmpfilename;} + +# +# If a line exceeds maxlength, split it into multiple +# lines at commas. Subsequent lines are indented by +# the specified number of spaces. +# +# In other words: Lines are split by replacing ", " +# by ",\n" plus indent spaces. +# + +function format_line (line, maxlength, indent) +{ + rline = ""; + + while (length(line) > maxlength) { + # + # Find the rightmost ", " so that the part + # to the left of it is just within maxlength. + # If there is none, give up and leave it as-is. + # + if (!match(substr(line, 1, maxlength + 1), /^.*, /)) + break; + rline = rline substr(line, 1, RLENGTH - 1) "\n"; + line = sprintf("%*s", indent, "") substr(line, RLENGTH + 1); + } + return rline line; +} + +# +# Join an array into a string. +# + +function join (separator, array, num) +{ + _result = "" + if (num) { + while (num > 1) + _result = separator array[num--] _result; + _result = array[1] _result; + } + return _result; +} + +# +# Execute a system command and report if it failed. +# + +function system_check (cmd) +{ + if ((rc = system(cmd))) + warn(cmd " failed (" rc ")"); +} + +# +# Handle "INTERFACE" line. +# + +function handle_interface () +{ + intname = $2; + sub(/;$/, "", intname); + if (intname !~ /^[a-z_][a-z0-9_]*$/) { + debug($0); + warnsrc("Invalid interface name '" intname "', use [a-z_][a-z0-9_]*"); + error = 1; + return; + } + if (!/;[ ]*$/) + warnsrc("Semicolon missing at end of line, no problem"); + + debug("Interface " intname); + + printh("#ifndef _" intname "_if_h_"); + printh("#define _" intname "_if_h_\n"); + printc("#include \"" intname "_if.h\"\n"); +} + +# +# Handle "CODE" and "HEADER" sections. +# Returns the code as-is. +# + +function handle_code () +{ + code = "\n"; + getline < src; + indent = $0; + sub(/[^ ].*$/, "", indent); # find the indent used + while (!/^}/) { + sub("^" indent, ""); # remove the indent + code = code $0 "\n"; + getline < src; + lineno++;; + } + return code; +} + +# +# Handle "METHOD" and "STATICMETHOD" sections. +# + +function handle_method (static) +{ + # + # Get the return type and function name and delete that from + # the line. What is left is the possibly first function argument + # if it is on the same line. + # + if (!intname) { + warnsrc("No interface name defined"); + error = 1; + return; + } + sub(/^[^ ]+[ ]+/, ""); + ret = $0; + sub(/[ ]*\{.*$/, "", ret); + name = ret; + sub(/^.*[ ]/, "", name); # last element is name of method + sub(/[ ]+[^ ]+$/, "", ret); # return type + debug("Method: name=" name " return type=" ret); + + sub(/^[^\{]*\{[ ]*/, ""); + + if (!name || !ret) { + debug($0); + warnsrc("Invalid method specification"); + error = 1; + return; + } + + if (name !~ /^[a-z_][a-z_0-9]*$/) { + warnsrc("Invalid method name '" name "', use [a-z_][a-z0-9_]*"); + error = 1; + return; + } + + if (methods[name]) { + warnsrc("Duplicate method name"); + error = 1; + return; + } + methods[name] = name; + + line = $0; + while (line !~ /\}/ && (getline < src) > 0) { + line = line " " $0; + lineno++ + } + + default = ""; + if (!match(line, /\};?/)) { + warnsrc("Premature end of file"); + error = 1; + return; + } + extra = substr(line, RSTART + RLENGTH); + if (extra ~ /[ ]*DEFAULT[ ]*[a-zA-Z_][a-zA-Z_0-9]*[ ]*;/) { + default = extra; + sub(/.*DEFAULT[ ]*/, "", default); + sub(/[; ]+.*$/, "", default); + } + else if (extra && opt_d) { + # Warn about garbage at end of line. + warnsrc("Ignored '" extra "'"); + } + sub(/\};?.*$/, "", line); + + # + # Create a list of variables without the types prepended. + # + sub(/^[ ]+/, "", line); # remove leading ... + sub(/[ ]+$/, "", line); # ... and trailing whitespace + gsub(/[ ]+/, " ", line); # remove double spaces + + num_arguments = split(line, arguments, / *; */) - 1; + delete varnames; # list of varnames + num_varnames = 0; + for (i = 1; i <= num_arguments; i++) { + if (!arguments[i]) + continue; # skip argument if argument is empty + num_ar = split(arguments[i], ar, /[* ]+/); + if (num_ar < 2) { # only 1 word in argument? + warnsrc("no type for '" arguments[i] "'"); + error = 1; + return; + } + # Last element is name of variable. + varnames[++num_varnames] = ar[num_ar]; + } + + argument_list = join(", ", arguments, num_arguments); + varname_list = join(", ", varnames, num_varnames); + + if (opt_d) { + warn("Arguments: " argument_list); + warn("Varnames: " varname_list); + } + + mname = intname "_" name; # method name + umname = toupper(mname); # uppercase method name + + firstvar = varnames[1]; + + if (default == "") + default = "0"; + + # the method description + printh("extern struct kobjop_desc " mname "_desc;"); + # the method typedef + prototype = "typedef " ret " " mname "_t("; + printh(format_line(prototype argument_list ");", + line_width, length(prototype))); + + # Print out the method desc + printc("struct kobjop_desc " mname "_desc = {"); + printc("\t0, (kobjop_t) " default); + printc("};\n"); + + # Print out the method itself + if (0) { # haven't chosen the format yet + printh("static __inline " ret " " umname "(" varname_list ")"); + printh("\t" join(";\n\t", arguments, num_arguments) ";"); + } + else { + prototype = "static __inline " ret " " umname "("; + printh(format_line(prototype argument_list ")", + line_width, length(prototype))); + } + printh("{"); + printh("\tkobjop_t _m;"); + if (!static) + firstvar = "((kobj_t)" firstvar ")"; + printh("\tKOBJOPLOOKUP(" firstvar "->ops," mname ");"); + retrn = (ret != "void") ? "return " : ""; + printh("\t" retrn "((" mname "_t *) _m)(" varname_list ");"); + printh("}\n"); +} + +# +# Begin of the main program. +# + +BEGIN { + +line_width = 80; +gerror = 0; + +# +# Process the command line. +# + +num_files = 0; + +for (i = 1; i < ARGC; i++) { + if (ARGV[i] ~ /^-/) { + # + # awk doesn't have getopt(), so we have to do it ourselves. + # This is a bit clumsy, but it works. + # + for (j = 2; j <= length(ARGV[i]); j++) { + o = substr(ARGV[i], j, 1); + if (o == "c") opt_c = 1; + else if (o == "h") opt_h = 1; + else if (o == "p") opt_p = 1; + else if (o == "d") opt_d = 1; + else if (o == "l") { + if (length(ARGV[i]) > j) { + opt_l = substr(ARGV[i], j + 1); + break; + } + else { + if (++i < ARGC) + opt_l = ARGV[i]; + else + usage(); + } + } + else + usage(); + } + } + else if (ARGV[i] ~ /\.m$/) + filenames[num_files++] = ARGV[i]; + else + usage(); +} + +if (!num_files || !(opt_c || opt_h)) + usage(); + +if (opt_p) + debug("Will produce files in original not in current directory"); + +if (opt_l) { + if (opt_l !~ /^[0-9]+$/ || opt_l < 1) + die("Invalid line width '" opt_l "'"); + line_width = opt_l; + debug("Line width set to " line_width); +} + +for (i = 0; i < num_files; i++) + debug("Filename: " filenames[i]); + +for (file_i = 0; file_i < num_files; file_i++) { + src = filenames[file_i]; + cfilename = hfilename = src; + sub(/\.m$/, ".c", cfilename); + sub(/\.m$/, ".h", hfilename); + if (!opt_p) { + sub(/^.*\//, "", cfilename); + sub(/^.*\//, "", hfilename); + } + + debug("Processing from " src " to " cfilename " / " hfilename); + + ctmpfilename = cfilename ".tmp"; + htmpfilename = hfilename ".tmp"; + + common_head = \ + "/*\n" \ + " * This file is produced automatically.\n" \ + " * Do not modify anything in here by hand.\n" \ + " *\n" \ + " * Created from source file\n" \ + " * " src "\n" \ + " * with\n" \ + " * makeobjops.awk\n" \ + " *\n" \ + " * See the source file for legal information\n" \ + " */\n"; + + printc(common_head "\n" \ + "#include <sys/param.h>\n" \ + "#include <sys/queue.h>\n" \ + "#include <sys/kernel.h>\n" \ + "#include <sys/kobj.h>"); + + printh(common_head); + + delete methods; # clear list of methods + intname = ""; + lineno = 0; + error = 0; # to signal clean up and gerror setting + + while (!error && (getline < src) > 0) { + lineno++; + + # + # Take special notice of include directives. + # + if (/^#[ ]*include[ ]+["<][^">]+[">]/) { + incld = $0; + sub(/^#[ ]*include[ ]+/, "", incld); + debug("Included file: " incld); + printc("#include " incld); + } + + sub(/#.*/, ""); # remove comments + sub(/^[ ]+/, ""); # remove leading ... + sub(/[ ]+$/, ""); # ... and trailing whitespace + + if (/^$/) { # skip empty lines + } + else if (/^INTERFACE[ ]+[^ ;]*[ ]*;?[ ]*$/) + handle_interface(); + else if (/^CODE[ ]*{$/) + printc(handle_code()); + else if (/^HEADER[ ]*{$/) + printh(handle_code()); + else if (/^METHOD/) + handle_method(0); + else if (/^STATICMETHOD/) + handle_method(1); + else { + debug($0); + warnsrc("Invalid line encountered"); + error = 1; + } + } + + # + # Print the final '#endif' in the header file. + # + printh("#endif /* _" intname "_if_h_ */"); + + close (ctmpfilename); + close (htmpfilename); + + if (error) { + warn("Output skipped"); + system_check("rm -f " ctmpfilename " " htmpfilename); + gerror = 1; + } + else { + if (opt_c) + system_check("mv " ctmpfilename " " cfilename); + if (opt_h) + system_check("mv " htmpfilename " " hfilename); + } +} + +exit gerror; + +} |