On Wed, Aug 24, 2022 at 2:13 PM <herron.phi...@googlemail.com> wrote: > > From: Philip Herron <philip.her...@embecosm.com> > > We have some rust specific langugage options note -fwrapv is enabled by > default in the code. We are trying to respect options such as > -Wunused-result which we get by porting over c++ no-discard for rust's > must-use attribute, so we have enabled these by default directly here.
LGTM Richard. > --- > gcc/rust/lang.opt | 118 ++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 118 insertions(+) > create mode 100644 gcc/rust/lang.opt > > diff --git a/gcc/rust/lang.opt b/gcc/rust/lang.opt > new file mode 100644 > index 00000000000..1f6855ede1d > --- /dev/null > +++ b/gcc/rust/lang.opt > @@ -0,0 +1,118 @@ > +; Options for the Rust front end. > +; Copyright (C) 2003-2022 Free Software Foundation, Inc. > +; > +; This file is part of GCC. > +; > +; GCC is free software; you can redistribute it and/or modify it under > +; the terms of the GNU General Public License as published by the Free > +; Software Foundation; either version 3, or (at your option) any later > +; version. > +; > +; GCC is distributed in the hope that it will be useful, but WITHOUT ANY > +; WARRANTY; without even the implied warranty of MERCHANTABILITY or > +; FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License > +; for more details. > +; > +; You should have received a copy of the GNU General Public License > +; along with GCC; see the file COPYING3. If not see > +; <http://www.gnu.org/licenses/>. > + > +; See the GCC internals manual for a description of this file's format. > + > +; Please try to keep this file in ASCII collating order. > + > +; Describes command-line options used by this frontend > + > +Language > +Rust > + > +I > +Rust Joined Separate > +; Documented in c.opt > + > +L > +Rust Joined Separate > +; Not documented > + > +Wall > +Rust > +; Documented in c.opt > + > +Wunused-variable > +Rust Var(warn_unused_variable) Init(1) Warning > +; documented in common.opt > + > +Wunused-const-variable > +Rust Warning Alias(Wunused-const-variable=, 2, 0) > +Warn when a const variable is unused. > + > +Wunused-const-variable= > +Rust Joined RejectNegative UInteger Var(warn_unused_const_variable) Init(1) > Warning LangEnabledBy(Rust,Wunused-variable, 1, 0) IntegerRange(0, 2) > +Warn when a const variable is unused. > + > +Wunused-result > +Rust Var(warn_unused_result) Init(1) Warning > +Warn if a caller of a function, marked with attribute warn_unused_result, > does not use its return value. > + > +frust-crate= > +Rust Joined RejectNegative > +-frust-crate=<name> Set the crate name for the compilation > + > +frust-debug > +Rust Var(flag_rust_debug) > +Dump various Rust front end internals. > + > +frust-dump- > +Rust Joined RejectNegative > +-frust-dump-<type> Dump Rust frontend internal information. > + > +frust-max-recursion-depth= > +Rust RejectNegative Type(int) Var(rust_max_recursion_depth) Init(64) > +-frust-max-recursion-depth=integer > + > +frust-mangling= > +Rust Joined RejectNegative Enum(frust_mangling) Var(flag_rust_mangling) > +-frust-mangling=[legacy|v0] Choose which version to use for name mangling > + > +Enum > +Name(frust_mangling) Type(int) UnknownError(unknown rust mangling option %qs) > + > +EnumValue > +Enum(frust_mangling) String(legacy) Value(0) > + > +EnumValue > +Enum(frust_mangling) String(v0) Value(1) > + > +frust-cfg= > +Rust Joined RejectNegative > +-frust-cfg=<name> Set a config expansion option > + > +frust-edition= > +Rust Joined RejectNegative Enum(frust_edition) Var(flag_rust_edition) > +-frust-edition=[2015|2018|2021] Choose which edition to use when > compiling rust code > + > +Enum > +Name(frust_edition) Type(int) UnknownError(unknown rust edition %qs) > + > +EnumValue > +Enum(frust_edition) String(2015) Value(0) > + > +EnumValue > +Enum(frust_edition) String(2018) Value(1) > + > +EnumValue > +Enum(frust_edition) String(2021) Value(2) > + > +frust-embed-metadata > +Rust Var(flag_rust_embed_metadata) > +Flag to enable embeding metadata directly into object files > + > +frust-metadata-output= > +Rust Joined RejectNegative > +-frust-metadata-output=<path.rox> Path to output crate metadata > + > +o > +Rust Joined Separate > +; Documented in common.opt > + > +; This comment is to ensure we retain the blank line above. > -- > 2.25.1 >
