diff --git a/COPYING.LESSER b/COPYING.LESSER new file mode 100644 index 000000000..cca7fc278 --- /dev/null +++ b/COPYING.LESSER @@ -0,0 +1,165 @@ + GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. 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Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/Makefile.in b/Makefile.in index 47f6ec59d..fa23cf00f 100644 --- a/Makefile.in +++ b/Makefile.in @@ -104,7 +104,8 @@ DISTDEP = info Makefile # Files to distribute. DISTBIN = $(wildcard bin/verilator-*) -DISTFILES_INC = $(INFOS) .gitignore Artistic COPYING *.in *.ac \ +DISTFILES_INC = $(INFOS) .gitignore Artistic COPYING COPYING.LESSER \ + *.in *.ac \ Changes README TODO \ MANIFEST.SKIP \ bin/* \ diff --git a/bin/verilator b/bin/verilator index cf39e9555..bbcbfa2ec 100755 --- a/bin/verilator +++ b/bin/verilator @@ -665,7 +665,7 @@ Disable the specified warning message. =item -Wno-lint -Disable all lint related warning messages. This is equivelent to +Disable all lint related warning messages. This is equivalent to "-Wno-CASEINCOMPLETE -Wno-CASEOVERLAP -Wno-CASEX -Wno-CASEWITHX -Wno-CMPCONST -Wno-IMPLICIT -Wno-UNDRIVEN -Wno-UNSIGNED -Wno-UNUSED -Wno-VARHIDDEN -Wno-WIDTH". @@ -1888,7 +1888,7 @@ correctly. Warns that a case statement contains a constant with a C. Verilator is two-state so interpret such items as always false. Note a common error is to use a C in a case or casez statement item; often what the user -instead insteaded is to use a casez with C. +instead intended is to use a casez with C. Ignoring this warning will only suppress the lint check, it will simulate correctly. @@ -2158,7 +2158,7 @@ correctly. =item WIDTHCONCAT Warns that based on width rules of Verilog, a concatenate or replication -has a undeterminate width. In most cases this violates the Verilog rule +has a indeterminate width. In most cases this violates the Verilog rule that widths inside concatenates and replicates must be sized, and should be fixed in the code. @@ -2226,10 +2226,10 @@ Visual C++ Version 7 or newer, but this is not tested by the author. =item Can you provide binaries? -Verilator is available as a RPM for SuSE, Redhat and perhaps other systems; -this is done by porters and may slightly lag the primary distribution. If -there isn't a binary build for your distribution, how about you set one up? -Please contact the authors for assistance. +Verilator is available as a RPM for SuSE, Fedora, and perhaps other +systems; this is done by porters and may slightly lag the primary +distribution. If there isn't a binary build for your distribution, how +about you set one up? Please contact the authors for assistance. Note people sometimes request binaries when they are having problems with their C++ compiler. Alas, binaries won't help this, as in the end a fully @@ -2249,18 +2249,24 @@ so your simulator shouldn't have to be -- and Verilator is closer to the synthesis interpretation, so this is a good thing for getting working silicon. -=item May programs I create with Verilator remain under my own copyright? +=item Will Verilator output remain under my own copyright? Yes, it's just like using GCC on your programs; this is why Verilator uses -the "GNU *Lesser* Public License" instead of the more typical "GNU Public -License". If you change Verilator itself or the header files Verilator -includes, you must make the source code available under the GNU Lesser -Public License. However, Verilator output (the Verilated code) only -includes the licensed files, and so you are NOT required to release any -output from Verilator. +the "GNU *Lesser* Public License Version 3" instead of the more typical +"GNU Public License". See the licenses for details, but in brief, if you +change Verilator itself or the header files Verilator includes, you must +make the source code available under the GNU Lesser Public License. +However, Verilator output (the Verilated code) only "include"s the licensed +files, and so you are NOT required to release any output from Verilator. You also have the option of using the Perl Artistic License, which again -does not require you release your Verilog or generated code. +does not require you release your Verilog or generated code, and also +allows you to modify Verilator for internal use without distributing the +modified version. But please contribute back to the community! + +One limit is that you cannot under either license release a commercial +simulation product incorporating Verilator without making the source code +available. =item Why is running Verilator so slow? diff --git a/readme.texi b/readme.texi index 8ccf4fff0..ebd2cc915 100644 --- a/readme.texi +++ b/readme.texi @@ -29,9 +29,9 @@ This is the Verilator Package. This package is Copyright 2003-2009 by Wilson Snyder @email{wsnyder@@wsnyder.org}. Verilator is free software; you can redistribute it and/or modify it -under the terms of either the GNU General Public License Version 3 or -the Perl Artistic License Version 2.0. (See the documentation for -more details.) +under the terms of either the GNU Lesser General Public License +Version 3 or the Perl Artistic License Version 2.0. (See the +documentation for more details.) This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of